A device for gripping and installation details

 

(57) Abstract:

Usage: in engineering, Assembly-line production. The inventive device includes a work spindle 4 with the drive of the feeder 5, the nozzle 3, is rigidly connected with an operating rod, disk 1, associated with the nozzle spring 2, the separator 8 with the balls 7 that is installed between the disk and the spring ring fence 12, spring-loaded relative to the disk. In the guide holes of the disk 1 is set to the column 11 with the possibility of reciprocation. The columns are rigidly connected with the annular stop. Spring-loaded jaws for gripping parts in the form of a rocker arm 14 with rollers 17 hinged to the disk with the opportunity to interact with the annular stop by rollers 17. 1 C. p. F.-ly, 4 Il.

The invention relates to mechanical engineering and can be used for automatic Assembly of parts like shaft sleeve with the help of robot manipulators.

A device for pressing the bushings in the housing part containing the base, the base plate with anchor roller, pressing the mandrel, the sleeve with the brackets installed on the column with the possibility of free rotation around it. Pressing mandrel mounted on creditado of the known device is the complexity of the roller supports for the Cabinet parts, made in the form of a roller table.

A disadvantage of the known device is its ability to install or extrude the details only in the form of a sleeve, which reduces its technological capabilities.

The closest in technical essence and the achieved effect is a device for gripping and install bearing mounted in the housing of the working spindle, a plunger zapressovyvajut element associated with the rod and coaxially located in the glass, and seizure. The device is equipped with a cage with balls and a flexible coupling connecting it with the follower sensor and a spherical bearing, located in the glass, and adjustable connecting the working spindle with the pusher, and the separator is mounted on the flange, made at the end of the pusher, the sensor is placed with the opportunity to interact with the flange, and the capture is made in the form mounted on the glass of spring-loaded jaws.

A disadvantage of the known device for capturing and installation of bearings is that it cannot be used for items that do not have chamfers on the ends, facing each other. In addition, items with a spherical or any other FAS.

The aim of the invention is to improve the accuracy of alignment when installing components without lead-in chamfer on the ends or shaped ends.

This is achieved by a device for gripping and installing parts that contain the working spindle with feed drive, the cage with balls, spring-loaded jaws for gripping parts, equipped with a nozzle rigidly connected with an operating rod, a disk with the guide holes, which is connected with the nozzle by means of a spring, a ring fence, a spring-loaded relative to the disk, speakers, mounted in the guide hole of the disk with the possibility of reciprocation, and the columns are rigidly connected with the ring fence, separator with balls installed between the disk and the spring and sponge to capture parts made in the form of a rocker arm with rollers, fixed the hinge on the disk with the opportunity to interact with the annular stop by the above-mentioned rollers. In addition, the focus ring is made from lead-centering conical surface and inverse conical surface, and a roller mounted for engagement with the tapered surface of the ring stops.

In Fig. 1 shows a kinematic diagram of the arrangement of the parts of the device in the capture set of items; in Fig. 4 - section a-a in Fig. 3.

A device for gripping and installation details contains disk 1, which means coaxially therewith, the spring 2 is pressed to the nozzle 3, is rigidly connected with the working shaft 4 of the drive of the feeder 5, available on any Executive body 6, such as a sliding or pivoting arm (not shown). Between the disk 1 and the nozzle 3 is placed balls 7 in the separator 8 having as disk 1 backlash in the radial directions relative to the nozzle 3, the maximum permissible errors of mismatch axes collect parts 9 and 10.

In the holes of the disk 1, the axis of which is parallel to the axis of the latter, inserted at least two columns 11, rigidly connected with the annular stop 12 forming with the holes of the disk 1 translational pair of slip.

Under the influence of spring 13 placed on the columns 11 between the disk 1 and the focus ring 12, the latter is extremely exposed relative to the disk 1 until it stops at the end of end clamps columns 11. On the periphery of the disc 1 hinged sponge in the form of a spring-loaded rocker arm 14, working in radial planes. In the upper shoulders of the rocker arm 14 against the spring 15 placed on the struts 16 of the disk 1. The ends of the lower arms of the rocker arm 14 are designed to olcavage stop 12. On the ring fence 12 is also tapered lead-in surface 18.

The device operates as follows.

When stroke 4 drive 5 filing with the nozzle 3 down (see Fig. 1) focus ring 12, meeting tapered lead-in surface to the outside edge landing speed holes or other, for example, external, coaxially with it the surface of the fixed part 10, will be in case of discrepancy between its axis with the axis of the landing speed holes to move under the influence of the efforts occurring in the contact zone of the lead-conical surface of the annular stop 12 with the outer edge of the stepped hole together with the disk 1 and the rocker arm 14, the bearing set item 9 in the radial direction to match their axes. The displacement of the disk 1, caused by the above-mentioned condition is ensured by mounting it on the nozzle 3 with backlash. Moreover, the disk 1 is moved relative to the nozzle 3 by rolling on the balls 7 that are held from rolling in different directions on the disk 1 free on the separator 8. The displacement of the disk 1 with respect to the nozzle 3 causes a deflection of the Central spring 2 from the vertical, stretching it. Continuing its course down the shaft 4, carrying at the same time shifting the his (see Fig. 2). While the rollers 17 of the rocker arm 14 comes into contact with a reverse cone stationary centered thrust ring 12 and rotates the rocker arm 14, releasing, and thereby setting item 9. And item 9 to gunzip the rocker arm shaft 14 need not be fully inserted into the hole. And when the rocker arm 14 opens, item 9 freely lowered into the hole until it stops at the collar of his head, which should be on the end face of the spherical surface or chamfer. The stem 4, having developed his overtravel stops. During the reverse stroke 4 reverses the sequence of the elements of the device, namely the rollers 17 of the rocker arm 14 out of contact with the reverse cone thrust ring 12, which remains stationary in the beginning the return stroke of the rod 4, the rocker arm 14 under the action of springs 15 are rotated to its original position. At the ends of the rocker arm, loosening item 9, slide on its spherical end face, leaving the item is fixed in the hole and further pressed to a fixed mating parts 10. Further, when further progress up to the stop rod 4 with a nozzle 3 by a spring-loaded disk 1 also moves upward, and thrust ring 12 in columns 11 under vozdeistviyami 9 to another stationary part 10 this is the end. After you move the device to another part 9 (see Fig. 3) located, for example, on the tray 19 mechanism piece of issue filed by the gate 20 from the drive 21, ingested it, which is as follows.

The device is located above the captured item 9. When stroke 4 drive feeder 5 down spring-loaded rocker arm 14 carried them through the disk 1 is also down, interacting with a spherical surface to capture details 9 or, for example, chamfer apart and take it. When capturing is also centering rocker arm 14 with the disc 1 relative to the captured parts 9, i.e., the possible mutual offset of the axes of the disk 1 with the rocker 14 and captured part 9 is compensated by the radial movement of the disk 1, caused by the action of the efforts that occur in the zone of contact of the rocker arm 14 with a spherical surface to capture details 9. Movement of the rod 4, and in the end, the rocker arm 14 down, stops at the stop of their grooves on the end in a spherical end face of the captured details 9. Stroke up 4 item 9 held spring-loaded rocker arm 14, rises above the tray 19, prepared thereby for transportation to the place of its installation in the new stationary part 10. Do not touch any of the elements of the tray 19 at full stroke down 4.

The proposed device for capturing and installation details compared to the prototype with high accuracy to establish the details of the different forming surfaces, namely those parts that do not have a lead-in chamfers or have shaped the ends. It also allows you to extend the operational capabilities of the device. (56) USSR Author's certificate N 612502, class B 23 P 19/02, 1979.

1. A DEVICE FOR GRIPPING AND INSTALLING PARTS that contain the working spindle with feed drive, the cage with balls, spring-loaded jaws for gripping workpieces, characterized in that, to improve the accuracy of alignment when installing components without lead-in chamfer on the ends or shaped ends, it is provided with a nozzle rigidly connected with an operating rod, a disk with the guide holes, which is connected with the nozzle by means of a spring, a ring fence, a spring-loaded relative to the disk, speakers, mounted in the guide hole of the disk with the possibility of reciprocation, and the columns are rigidly connected with the ring-fence, separator with balls installed between the disk and the spring and sponge to capture parts made in the form of a rocker arm with rollers, pinned samostroev by p. 1, the annular stop is made with the lead-centering conical surface and inverse conical surface, and a roller mounted for engagement with the tapered surface of the annular stop.

 

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