Universal device for mounting and dismounting die inserts and grab bars and grab line
(57) Abstract:Usage: to change the die inserts and grab bars, and in the construction of grab bars. The inventive device includes an articulated-lever system installed on the frame of the press, grab the line is made of at least three parts, with means of their connection. Articulated-lever system has multi-link for connection with the Central part of each gripper line. The upper surface of the link made with the possibility of mounting and Dismounting the upper die inserts and side surfaces of the link made with the possibility of mounting and Dismounting the bottom of the inserts. Each of the linking parts of the lines made in the form prescribed in parts of the rulers of the clamping bolt, the drive Cam roller and clamping element. The clamping bolt is mounted in the guide sleeve and spring-loaded to the eccentricity of the eccentric roller. This allows to simplify the design and increase the reliability. 2 C. p. F.-ly, 7 Il. The present invention relates to the processing of metals by pressure and can be used to change the die inserts and grab bars.Known usteristrasse can be rotated and moved relative to the vertical axis and the bearing flange for mounting tooling 
The main disadvantage of the known device is that it cannot be used for mounting and Dismounting medium removable parts grab bars, without dismantling which it is impossible to change the die insert.It is also known a device for change of die inserts together with stampadigitale and grab bars containing a grab line formed of three parts by hydraulic detachable joints, stampadigitale hosting the die inserts and supports for installation of the secondary parts of the grab bars, and a movable cart driven grippers to move stampadigitale. This device, like most similar functionality can be taken for the prototype 
The main disadvantage of the known device is that to replace one of the grab bars (e.g., for debugging or maintenance), it is necessary to remove from the press all stampadigitale with two removable parts of the grab bars. In addition, a disadvantage of the known device is the hydraulic plug connections, which are in working condition are constantly under pressure, which complicates their design and reliability.Comparative analysis with known solutions device for mounting and Dismounting die inserts and grab bars shows that the claimed solution that performs the same function can optimally solve the problem of simplifying the design and improving reliability. In addition, the claimed device can be used in conjunction with the device adopted for the prototype, to use for mounting and Dismounting inserts and grab bars in those cases when there is no need to change stampadigitale, and need, for example, to change only one or two insert, or delete from the press grab line for repair of seizures.The essential features of the claimed device, allowing to obtain the output response hole provided placed in the ends of the plug connection, made in the form of two mutually perpendicular holes, in one of which the guide sleeve is located with the possibility of axial movement is fitted with guide vanes belt clamping bolt, one end of which is mounted the clamping element with the opportunity to interact with the protrusions of the slots made in the other mating part of the rulers, and between the ends of the guide sleeve and the guide belt pack installed Belleville springs, and the other hole is mounted eccentric drive roller with guaranteed clearance between the working surface of the Cam disk and the end surface of the head of the clamping bolt with the possibility of interaction of the mentioned surfaces. This design of detachable joints makes it easy to mount the middle part of the grab bars by the aforementioned lever system connecting element and allows a simple turn of the mentioned Cam roller 90aboutto carry out clamping and unclamping the middle part of the grab bars.In Fig. 1 shows a General view of a universal device for mounting and Dismounting die inserts and grab bars; Fig.2 section a-a in Fig. 1; Fig.3 is the same, etc; is a of Fig.6 section b-B in Fig.1; Fig.7 section b-b of Fig.6.Universal device for mounting and Dismounting die inserts and grab bars (Fig.1) contains a grab line 1, the articulated lever system 2, mounted on the frame 3, is equipped with multi-function link 4 with the connecting element 5 mounted with the possibility of further collaboration with made in the middle part 6 grab line 1 return hole 7. The upper surface 8 of the multifunction element 4 is designed as a platform for mounting and Dismounting the top of the inserts 9 and the middle part 6 grab line 1, and two side surfaces 10 provided with pins 11 for mounting and Dismounting the bottom of the inserts 12 through flexible power connections, for example circuits 13.In Fig. 6 and 7 shows a variant of the inventive universal device, the middle portion 6 a grab line 1 is equipped with placed in the ends of the detachable connections made in the form of two mutually perpendicular holes 14 and 15, in one of which the guide sleeve 16 is located with the possibility of axial movement is equipped with the guide belt 17 and the clamping bolt 18, one end of which is mounted the clamping alpicam between the ends of the guide sleeve 16 and the guide belt 17 package installed Belleville springs 22, and in another hole mounted drive Cam roller 23 with a guaranteed gap 24 between the working surface 25 of the Cam roller 23 and the end surface 26 of the head of the clamping bolt 18 with the possibility of interaction of the mentioned surfaces.Universal device works as follows.When changing the middle part 6 grab line 1 (Fig.3) multi-function link 4 with articulated lever system 2 is entered in the bench press 3 and is supplied to the middle part 6 of the ruler (the drive movement of lever system 2 vertically on the figures conventionally not shown). After that, the middle part of the line 6 is fastened by means of a connecting element 5 and the return holes 7 for multi-function link 4. Then the middle part 6 unsnaps from the paired parts 2 grab line 1 and using articulated-lever system 2 is withdrawn from the bed of the press 3.After removing the middle part 6 grab line 1, you can replace the top 9 and the bottom 12 of the insert.When changing the upper insert 9 (Fig.4) multi-function link 4 with articulated lever system 2 is entered in the bench press 3 and is brought under the upper box 9. After this is 8 multi-function link 4 and is removed from the bed of the press 3.When changing the bottom insert 12 (Fig.5) multi-function link 4 is located above the bottom box 12, insert data, is attached by flexible power connections, such as circuit 13, to the pin 11 located on the side surfaces 10 multi-function link 4 and is removed from the bed of the press.Install the middle part 6 grab line 1, the top 9 and the bottom 12 of the inserts in the reverse order.When placed in the ends of the middle part 6 grab line 1 high-speed detachable joints (Fig.7) detach the middle part 6 of the paired parts 21 a grab line 1 as follows. When turning on the 90aboutthe drive Cam roller 23, is placed in the hole 14, is selected gap 24 between the working surface 25 of the roller 23 and the end surface 26 of the clamping bolt 18, is placed in the hole 15, then the working surface 25 of the roller 23 presses the end surface 26 of the clamping bolt 18, moves it into the guide sleeve 16 and compresses the package of Cup springs 22 disposed between the ends of the guide sleeve 16 and the guide belt 17. When this clamping element 19 arranged on the clamping bolt 18 moves Vimeo for mounting and Dismounting die inserts and grab bars containing articulated lever system installed on the frame of the press can be rotated and moved relative to the vertical axis, characterized in that the articulated lever system is equipped with multi-function link with a connecting element for interaction with the Central part of each gripper line with the top surface of the above-mentioned element is a pad for mounting and Dismounting the upper die inserts, and two side surfaces are made with pins with flexible power connections for installation and removal of the lower die inserts.2. Grab lines, each containing at least three parts, means connecting the lines, characterized in that the average of each grab this line is made with a hole for engagement with the connecting elements of the multi-function link is a universal device for mounting and Dismounting die inserts and grab bars, and each of the linking parts of lines executed as mounted in mutually perpendicular holes one part of the line clamping bolt and the drive Cam roller and a clamping element mounted on the end of the clamping bolt in otkrovennostju axial movement and is made with the guide belt, between the ends of the guide sleeve and the guide belt pack installed Belleville springs and the drive Cam roller is installed with guaranteed clearance between the working surface of the Cam disk and the end surface of the head of the clamping bolt.
FIELD: metal working.
SUBSTANCE: hard alloy matrix has casing, bushing pressed in the case and hard alloy insertion. Bushing has multifaced hole. Hard alloy insertion is composed by several sections made in form of trapezoidal-section prisms which have cut angles at their non-working edges. Number of sections corresponds to number of faces of item to be headed. Cuts of angles are made symmetrically to faces of working edge. Slits are made in several places of multifaced hole bushing at the ponts where faces cross each other.
EFFECT: improved resistance of matrix; simplified assembly.
3 cl, 1 dwg