Connecting device deformed in one direction

FIELD: machine building.

SUBSTANCE: device consists of two flat, in essence, identical elastically deformed plates (12, 14) each with two opposite ends and of two thrust elements (16, 18) for connection of corresponding ends of two plates and for retaining plates in state of rest, in essence, parallel to each other without any mechanical connection between said plates. Each of the said two parts is designed to be attached to the corresponding plate; also two parts can considerably travel one relative to another in the direction perpendicular to two plates; at the same time the said parts perform extremely restricted travels one relative to another in two other directions of the rectangular system of coordinates. The device for positioning a back stop of a sheet-metal press consists of two fixed cheeks and of a movable support for the said stop; the device also consists of the two first guides attached to the cheeks parallel to direction XX', of the two second guides attached to each side of the support and parallel to direction RR' perpendicular to direction XX', of two coupling units each positioned between the first and the second guides. Additionally, the device consists of the first driving element to transfer the said unit relative to the first guide and of the second driving element to transfer the second guide relative to the said unit. Each connecting unit contains the said connecting device positioned between the first and the second driving elements so, that the plates of the connecting device are parallel to planes defined with directions XX' and RR'.

EFFECT: alignment of connected mechanisms with high precision.

12 cl, 10 dwg

 

The technical field to which the invention relates.

The present invention relates to a connecting device for connecting two parts, with the connecting device is made of a deformable essentially in one direction only.

In other words, the invention relates to a device to compensate for the manufacturing tolerances and errors of alignment in a rigid mechanical node, which may also be a mobile node. The connecting device provides rigidity node along the axes where the necessary rigidity, and at the same time in the preferred direction, the flexibility of the device limits the forces acting on all the generators of the components node in the direction where the permissible lower stiffness. The use of such a connecting device is particularly useful in the mechanisms of movement along mutually perpendicular axes in a rectangular coordinate system XRZ, which contain many parallel mechanical guides and rigid structures.

The level of technology

The function of such a device, typically provided by a mechanical linear direction, which is implemented, for example, in the form of slides with ball bearings on the guide rails, ball bearings on the shaft or by a lubricated sliding contact surfaces with e.g. the work by the machine.

Another solution is to create a mechanical mechanisms and components that ensure alignment with high accuracy in the directions parallel or perpendicular to the axes of motion to avoid creating stresses unacceptable for a machine.

Both solutions are associated with relatively high costs.

Disclosure of inventions

The problem to which the present invention is directed, is to create a connection device for connecting to each other two parts, to compensate for tolerances in the preferred direction with essentially simultaneous with the exception of such compensation in the other two directions of a rectangular coordinate system.

In accordance with the invention the solution of this problem is achieved by creating a connection device for connecting two parts with each other, made with the possibility of deformation essentially only in one direction, characterized in that it contains:

- two flat, essentially identical to the elastically deformable plate, whose thickness is essentially constant on the deformable parts of these plates, and each plate has two opposite end, and

two spacer element for connection of the respective ends of the two plates with the formation of USTC the x terminal connections, moreover, the spacers are designed to hold plates at rest essentially parallel to each other in the absence of any mechanical connection between the said plates, each of these two parts is intended for fastening to the corresponding plate,

and provided the opportunity for substantial movement of the two parts relative to each other in the direction perpendicular to the two plates with very limited relative movement between the said parts in the other two directions of a rectangular coordinate system.

It should be understood that due to the ability to strain when bending two plates in the direction perpendicular to the plates, provided with the possibility of relative movement between the two parts in this direction. In contrast, at the expense of end connections on both ends of the two parallel plates that are implemented by means of two spacer elements attached to the ends of the plates, almost impossible deformation of the connecting device in the other two directions of a rectangular coordinate system, taking into account the stiffness of the system in these two directions.

The term "spacer element" refers to as spacer elements formed corresponding elements separate from dps who Steen, and relief areas provided at the ends of the plates.

Preferably the plates are made flat and in a particularly preferred exemplary embodiment are rectangular in shape.

Also preferably, the spacer elements are connected to each other corresponding to the short sides of the two plates having a rectangular shape, and in the most preferred embodiment, passed through the entire length of the short sides.

In the preferred exemplary embodiment, each spacer element is formed by a strip of rigid material located between the two plates along their short sides, and the bands are attached to the plates by zakapyvanija, bolting or welding.

Preferably each plate is provided in the middle zone of its outer surface fastening means for attaching to the relevant part, and these fastening means can include two rigid elements of the pair, each of which is attached to the corresponding plate in its Central zone.

Another object of the invention is a device for positioning the rear stop sheet metal stamping press, which used the previously described coupling devices.

To solve this task, the device for positioning the rear stop latestmove the th press, containing two moveable jaw and a movable support for the specified limit, contains the first two guides attached to the cheeks parallel to the direction XX', two second rails attached to each side of the support and parallel to the direction RR', perpendicular to the direction XX', the two connecting node, each of which is located between the first and second guides, and contains the first drive body to move the specified node relative to the first guide and the second drive body to move the second rail relative to the specified node. The device differs in that each connecting node contains the above-mentioned connecting device located between the first and second drive bodies in such a way that the connecting plate of the device parallel to the planes defined by the directions XX' and RR'.

Brief description of drawings

Other features and advantages of the invention will be clear from the description of embodiments, which are not limiting, with reference to the accompanying drawings. In the drawings:

figa depicts the front view of the connecting device in a simplified form,

figv depicts the connecting device according to Figo on the side view,

figs depicts the connecting device according to Figo on the end over the,

figure 2 depicts the connecting device according to Figo in the future,

figure 3 depicts in perspective of a connecting device to which is applied the force in the Z axis direction,

figa depicts the front view of the connecting device according to the invention in the first preferred example of execution

figv depicts the connecting device according to Figo on the side view,

figure 5 depicts the connecting device according to Figo in the future,

6 depicts in perspective of a connecting device according to the invention in a second preferred example of execution

Fig.7 depicts half of the device for positioning the rear stop sheet metal stamping press, which used the connecting device of figure 1-6.

The implementation of the invention

Description of the principle that made the connecting device, given with reference to figures 1 and 2. The device 10 is formed by two plates 12 and 14, which in this example is made rectangular and identical. The plates have a length L in the direction of the axis R and width of the I in the direction of the X axis of a rectangular coordinate system. The ends 12A, 14a and 12b, 14b of the plates 12 and 14 are interconnected by spacer elements 16 and 18, which are held in the Z-direction and hold the plates 12 and 14 parallel to each other at rest. These spacer of elementarization, and their edges 16A, 16b and 18a, 18b are rigidly attached to the ends of the plates 12 and 14. Plates 12 and 14 have respective Central sections 20 forming zone for attaching to two parts, between which should be installed connecting the device 10.

Plates 12 and 14 and spacers 16 and 18 are preferably made of the same material, for example of metal. Plates 12 and 14 preferably have the same constant thickness e, and the distance between the plates 12 and 14, which specifies the spacer elements 16 and 18 in the rest state, denoted as d. Each plate 12, 14 is of such dimensions that is some flexibility in the Z axis direction and high stiffness in other directions.

In a practical exemplary embodiment of a plate made of steel having a modulus of 355 MPa. Each plate is L=300 mm, I=80 mm and e=4 mm, the Distance d between the two plates at rest ranges from 2 to 4 mm.

In a more General aspect for the optimal operation of the connecting device, it is desirable to observe the following ratio:

80e≤L≤100e

15e≤I≤40e

0,5e≤d≤2e

And finally, if we take for H the height over which the plates actually are subjected to bending, provided education of end connections, it is advisable to observe also the following relationship:

15e≤H≤35e

p> As best seen in figure 3, when efforts are transmitted in the Z-direction parts attached to the plates 12 and 14, the plate can be deformed in the Z-direction, thereby allowing the two parts move relative to each other in the direction Z. In contrast, it should be understood that due to the rigidity caused by the dimensions of the spacer elements 16 and 18 and the plates, the displacement in the directions X and R is practically impossible due to the stiffness of the connecting device in these directions.

In practical execution of each plate has the ability to warp the size of ±1.5 mm in the Z-direction and rigidity in the other two directions corresponding to the maximum strain value of 0.1 mm under a load of 150 kg

Thus, by using very simple design created a connecting device which is capable of deformation essentially only in one direction, in the direction Z. In contrast, the ability of the connecting device to the strain in the other two directions of a rectangular coordinate system is very limited.

Next will be described the connecting device in the first preferred exemplary embodiment with reference to figure 4 and 5. In this example, perform the spacer elements 16 and 18 are formed by the strips 30 and 32 of material, preferably identical to what the material of the plates 12 and 14. These strips of material define a constant distance between the plates 12 and 14 in a state of rest. In the example shown, the strips 30 and 32, forming spacer elements attached by rivets 33. Obviously, for connection spacers and plates can be used other ways of fastening, such as welding or bonding, provided that these methods provide enough power connection with consideration of the forces transmitted by the connecting device. In the above mentioned drawings are also visible elements 34 and 36 mate, which is attached to the Central portions of the plates 12 and 14 to facilitate attachment of the plates to mechanical parts, between which is located the connecting device. Elements 34 and 36 mate made, for example, rectangular and attached to the plates, pressure-sensitive adhesive or other suitable fastening means. Preferably each of the elements 34 and 36 mate is a kind of flange with mounting holes 38 for attaching the two parts connected with a connecting device.

Figure 6 shows the connecting device in the second preferred example of execution.

Each plate 12', 14' are made by machining from a thicker sheet so that the intermediate sections 70, 72 of each plate is thinned to the desired thickness of the e, and thicker left Central sections 34', 36', forming the elements of the pair, and the ends 74 and 76 for rigid attachment to the spacer elements 30' and 32'. Spacer elements 30' and 32' are preferably attached to the thickened portions 74 and 76 at the ends of the plates by screws 33'. This provides a very rigid connection of the ends of the plates 12' and 14' through the spacer elements 30' and 32'.

Obviously, in the connecting device 6 is observed geometric ratio of the sizes listed above.

7 shows in perspective the connecting device according to Fig 1-5 when used for positioning the rear stop sheet metal stamping press.

Rear stop sheet metal stamping press is designed for accurate installation of the edges of the sheet metal before it is machined in sheet metal stamping press. Back block 40 mounted on a support 42, which is directed at the movement in the directions R and X axes of a rectangular coordinate system, relative cheeks F design. Do this for each end of the support 42 for the rear stop 40 is provided connecting node 44, located between each side of a support and cheek F machine design. Bearing 42 and cheeks F have a very great structural rigidity. More specifically, on the sides of the support 42 has two guide rails 46, passing in the direction R, and two on rawsumer rail 48, passing in the X-direction, is fixed on each cheek F. the First driving bodies 50 will move the connecting node 44 on the rail 48 in the X direction, and the second driving bodies 52 allow you to move the support 42 for the rear stop 40 in the direction R relative to the connector 44. Thus, the support 42 for the rear stop 40 can move relative to the construction machine in the directions R and X.

To compensate for inadequate tolerances in the guide means formed by the rails 46 and 48, between live bodies 50 and 52 is a connecting device 60 figure 1-5. The connecting device 60 is set so that the constituent plates 12 and 14 lie in the plane of RX. Their elements 34 and 36 mate is used for attachment to the drive bodies 50 and 52, respectively.

It should be understood that due to the ability of the connecting device 60 to deformation can be compensated error tolerances in the guide means for the direction along the axes R and X due to the deformation of the connecting device in the direction Z. In contrast, the whole system is built between the guide rails 46 and 48, has a high rigidity in the directions R and X.

1. A connecting device for connecting two parts with each other, made with the possibility of deformation or the regulation essentially only in one direction, characterized in that it comprises two flat, essentially identical provideproperty plate, whose thickness is essentially constant on the deformable parts of these plates, and each plate has two opposite end; and two spacer element for connection of the respective ends of the two plates with the formation of rigid end connections, and spacer elements configured to hold wafers in a state of rest essentially parallel to each other in the absence of any mechanical connection between the said plates, each of these two parts is intended for fastening to the corresponding plate, and provided the opportunity for substantial movement of the two parts relative to each other in the direction perpendicular to the two plates with very limited relative movement between the said parts in the other two directions of a rectangular coordinate system.

2. The device according to claim 1, characterized in that the spacer elements pass through the entire length of the ends of the plates.

3. The device according to claim 1, characterized in that the plates are made essentially rectangular.

4. The device according to claim 2, characterized in that the plates are made essentially rectangular.

5. The device according to claim 3, characterized in that the spacer elements are combined, etc is g with each other corresponding to the short sides of the two plates.

6. The device according to claim 5, characterized in that the spacer elements pass through the entire length of these short sides.

7. The device according to claim 3, characterized in that each spacer element is formed by a strip of rigid material located between the two plates along their short sides, and the bands are attached to the plates by zakapyvanija.

8. The device according to claim 3, characterized in that each plate is provided with fastening means for attachment to corresponding parts, and fastening means occupy a middle area of the outer surface of the plate.

9. The device according to claim 8, characterized in that the fastening means for attachment to parts contain two rigid elements of the pair, each of which is attached to the corresponding plate in its Central zone.

10. Device according to any one of claims 1 to 9, characterized in that the total length L of each plate is in the range from 80 to 100 e, where e is the thickness of the plate.

11. Device according to any one of claims 1 to 9, characterized in that the width of the first plate is in the range from 15 to 40 e, where e is the thickness of the plate.

12. A device for positioning the rear stop sheet metal stamping press, comprising two moveable jaw and a movable support for the specified focus, containing the first two guides attached to the parallel cheeks napravleniyah', two second rails attached to each side of the support and parallel to the direction RR', perpendicular to the direction XX', the two connecting node, each of which is located between the first and second guides, and contains the first drive body to move the specified node relative to the first guide and the second drive body to move the second rail relative to the specified node, characterized in that each connecting node contains the connecting device described in any one of claims 1 to 11, is placed between the first and second drive bodies in such a way that the connecting plate of the device parallel to the planes defined by the directions XX' and RR'.



 

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