Multi-workpiece clamping driving device for welding machine

Abstract

The utility model discloses a multi-workpiece clamping driving device for a welding machine. The multi-workpiece clamping driving device comprises a turntable and clamps, a plurality of clamping grooves are formed in the rotating disc, the multiple clamping grooves are distributed at equal intervals along the circumference of the rotating disc, and a widening groove is formed in one opening end of each clamping groove; the clamp comprises a clamping assembly, a clamping tool and a pressing plate. The clamping assembly comprises a connecting rod and two clamping rings, and the two clamping rings are symmetrically fixed to one end of the connecting rod; a widening part is arranged at one end of the clamp, a pair of fixing plates are fixed to the end face, away from the clamp, of the widening part, a rotating shaft is fixed between the two fixing plates, a groove is formed in the end, away from the widening part, of the clamp, a spring is arranged in the groove, one end of the spring is connected to the top wall of the groove, and the other end of the spring is connected to the top wall of the groove. The end, away from the top wall of the groove, of the spring is connected with a pull rod, the clamp can be rapidly disassembled and assembled, and the working efficiency of the welding machine is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding machines, in particular to a multi-workpiece clamping drive device for welding machines. Background Art

[0002] A welding machine is a processing machine that can use local heating to connect separate materials or parts into one.

[0003] In order to improve the working efficiency of the welding machine, multiple workstations are usually added to the same welding machine so that the welding machine can realize multi-station operation. However, after the welding machine is multi-stationed, the number of components such as fixtures that need to be installed on it increases accordingly. Therefore, the entire newly added part needs to assemble many parts, which makes its assembly cumbersome and later maintenance relatively difficult. Utility Model Content

[0004] Based on the above problems existing in the prior art, the purpose of the embodiments of the utility model is to provide a multi-workpiece clamping drive device for a welding machine, which can quickly disassemble and assemble the clamps and improve the working efficiency of the welding machine.

[0005] The utility model solves the technical problem by adopting the following technical solution: a multi-workpiece clamping drive device for a welding machine, comprising a turntable and a clamp;

[0006] The turntable is provided with a plurality of slots, the plurality of slots are evenly distributed along the circumference of the turntable, and a widening slot is provided at one of the opening ends of the slots;

[0007] The fixture comprises a clamping assembly, a fixture and a pressing plate;

[0008] The clamping assembly comprises a connecting rod and two clamping rings, wherein the two clamping rings are symmetrically fixed to one end of the connecting rod;

[0009] One end of the clamp is provided with a widened portion, a pair of fixed plates are fixed on the end surface of the widened portion away from the clamp, a rotating shaft is fixed between the two fixed plates, one end of the clamp away from the widened portion is provided with a groove, a spring is provided in the groove, one end of the spring is connected to the top wall of the groove, one end of the spring away from the top wall of the groove is connected to a pull rod, and the pressure plate is rotatably connected to one end of the pull rod away from the spring away from the top wall of the groove;

[0010] The end of the connecting rod away from the clamp ring is rotatably connected to the rotating shaft;

[0011] The clamp is inserted into the clamping slot, and the widened portion is embedded in the widened slot.

[0012] Furthermore, a buckle is fixed on the end surface of the pressure plate away from the pull rod.

[0013] Furthermore, a vertical slit is provided on the connecting rod, which divides the end portion of the connecting rod connected to the clamping ring into two parts of equal size, and the two clamping rings are fixedly connected to the two parts respectively, and a plurality of vertical grooves are provided on the inner side wall of the clamping ring, and the plurality of vertical grooves are equidistantly arranged along the circumference of the clamping ring.

[0014] Furthermore, the clamp includes a screw, one end of which is provided with a widened boss, and the end of the clamp ring away from the connecting rod is provided with an outer convex plate, and through holes are provided on the two outer convex plates, and a thread is provided on the inner wall of the through hole of one of the outer convex plates, and the screw is inserted into the through holes of the two outer convex plates, and the screw is meshed with the outer convex plates with threads.

[0015] Furthermore, a second widening boss is provided at one end of the screw rod away from the first widening boss, and a special-shaped hole is formed at the end of the second widening boss away from the screw rod.

[0016] Furthermore, the turntable is provided with a plurality of clamping blocks, and the connecting rod can rotate around the rotating shaft until it is engaged with the clamping blocks.

[0017] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0018] 1. When the pressure plate is rotated to correspond to the card slot, the fixture can be inserted into or removed from the card slot. After the fixture is inserted into the card slot, the pressure plate is pulled out of the card slot by pulling the ring buckle, and then the pressure plate is rotated, so that the pressure plate can be pressed on the end surface of the turntable by the tension of the spring, and the widened part of the fixture is embedded in the widened groove. Therefore, the fixture can be stably installed in the card slot, that is, the entire fixture can be quickly disassembled and assembled on the turntable;

[0019] 2. After the fixture is stably installed in the slot, the clamping assembly can be stably installed on the turntable by rotating the connecting rod and clamping the connecting rod on the clamping block. When the clamping assembly clamps the workpiece to be processed, it can be more stable;

[0020] 3. The workpiece to be processed is assembled in the clamping ring. By rotating the screw, the two outer convex plates can be brought closer to each other. The two clamping rings are brought closer to each other, which can stably clamp the workpiece to be processed. The vertical gap reduces the force required to rotate the screw to bring the two clamping rings closer to each other, that is, the convenience of the clamping ring to clamp the workpiece to be processed is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] In the figure:

[0023] Figure 1It is a three-dimensional schematic diagram of the clamping drive device in the utility model;

[0024] Figure 2 It is an exploded schematic diagram of the clamping drive device in the utility model;

[0025] Figure 3 yes Figure 1 A three-dimensional schematic diagram of a turntable in FIG.

[0026] Figure 4 yes Figure 3 An enlarged schematic diagram of part A in FIG.

[0027] Figure 5 yes Figure 1 A three-dimensional schematic diagram of the fixture in FIG.

[0028] Figure 6 yes Figure 1 An exploded diagram of the fixture in FIG.

[0029] Figure 7 yes Figure 5 A three-dimensional schematic diagram of the screw in FIG.

[0030] Figure 8 yes Figure 5 A three-dimensional schematic diagram of a clamping assembly in FIG.

[0031] Fig. 9 yes Figure 5 A three-dimensional schematic diagram of the fixture in FIG.

[0032] Fig.10 yes Figure 5 A cross-sectional view of the fixture in FIG.

[0033] Fig.11 yes Figure 5 A three-dimensional schematic diagram of a pressing plate in FIG.

[0034] In the figure:

[0035] 1. Turntable;

[0036] 11. Card block;

[0037] 101, card slot; 102, widened slot;

[0038] 2. Fixture;

[0039] 21. Screw; 22. Clamping assembly; 23. Fixture; 24. Press plate;

[0040] 211, widened boss one; 212, widened boss two;

[0041] 2120, special-shaped holes;

[0042] 221, connecting rod; 222, clamping ring;

[0043] 2210, vertical seam;

[0044] 2220, vertical groove; 2221, outer convex plate;

[0045] 230, groove; 231, widened portion; 232, fixed plate; 233, rotating shaft; 234, pull rod; 235, spring;

[0046] 24. Pressing plate;

[0047] 241. Ring buckle. DETAILED DESCRIPTION

[0048] Now the utility model is described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basic structure of the utility model in a schematic manner, so it only shows the components related to the utility model.

[0049] See also Figure 1-11 The utility model provides a technical solution: a multi-workpiece clamping drive device for a welding machine, comprising a turntable 1 and a fixture 2.

[0050] The turntable 1 is provided with a plurality of card slots 101 equidistantly distributed along the circumference of the turntable 1 , one of the opening ends of the card slots 101 is provided with a widened slot 102 , and the turntable 1 is provided with a plurality of card blocks 11 .

[0051] The clamp 2 includes a screw rod 21 , a clamping assembly 22 , a clamp 23 and a pressing plate 24 .

[0052] One end of the screw rod 21 is provided with a widened boss 1 211 , and the end of the screw rod 21 away from the widened boss 1 211 is provided with a widened boss 212 . The end of the widened boss 212 away from the screw rod 21 is provided with a special-shaped hole 2120 .

[0053] The clamping assembly 22 includes a connecting rod 221 and two clamping rings 222 .

[0054] The connecting rod 221 is provided with a vertical slit 2210 .

[0055] The vertical seam 2210 divides the end portion where the connecting rod 221 and the clamping ring 222 are connected into two parts of the same size, and the two clamping rings 222 are fixedly connected to the two parts respectively. An outer convex plate 2221 is provided at the end of the clamping ring 222 away from the connecting rod 221. Through holes are provided on the two outer convex plates 2221. A thread is provided on the inner wall of the through hole of one of the outer convex plates 2221. A plurality of vertical grooves 2220 are provided on the inner side wall of the clamping ring 222. The plurality of vertical grooves 2220 are equidistantly arranged along the circumference of the clamping ring 222.

[0056] The screw rod 21 is inserted into the through holes of the two outer convex plates 2221 , and the screw rod 21 is meshed with the outer convex plates 2221 with threads.

[0057] A widened portion 231 is provided at one end of the clamp 23, and a pair of fixed plates 232 are fixed on the end surface of the widened portion 231 away from the clamp 23, and a rotating shaft 233 is fixed between the two fixed plates 232. A groove 230 is provided at the end of the clamp 23 away from the widened portion 231, and a spring 235 is provided in the groove 230. One end of the spring 235 is connected to the top wall of the groove 230, and the end of the spring 235 away from the top wall of the groove 230 is connected to a pull rod 234. The pressure plate 24 is rotatably connected to the end of the pull rod 234 away from the spring 235 away from the top wall of the groove 230.

[0058] The clamp 23 is inserted into the clamping slot 101 , and the widened portion 231 is embedded in the widened slot 102 .

[0059] The end of the connecting rod 221 away from the clamp ring 222 is rotatably connected to the rotating shaft 233 .

[0060] The connecting rod 221 can rotate around the rotating shaft 233 until it is engaged with the locking block 11 .

[0061] A buckle 241 is fixed on the end surface of the pressing plate 24 away from the pull rod 234 .

[0062] When the pressure plate 24 is rotated to correspond to the slot 101, the fixture 23 can be inserted into the slot 101 or taken out from the slot 101. After the fixture 23 is inserted into the slot 101, the pressure plate 24 is pulled out of the slot 101 by pulling the ring buckle 241, and then the pressure plate 24 is rotated. The pressure plate 24 can be pressed against the end face of the turntable 1 by the tension of the spring 235, and the widened portion 231 of the fixture 23 is embedded in the widened groove 102. Therefore, the fixture 23 can be stably installed in the slot 101, and the entire fixture 2 can be quickly disassembled and assembled on the turntable 1.

[0063] When the fixture 23 is stably installed in the slot 101, the clamping assembly 22 can be stably installed on the turntable 1 by rotating the connecting rod 221 and clamping the connecting rod 221 on the clamping block 11, so that the clamping assembly 22 can clamp the workpiece to be processed more stably.

[0064] The workpiece to be processed is assembled in the clamping ring 222. By rotating the screw rod 21, the two outer convex plates 2221 can be brought closer to each other. The two clamping rings 222 are brought closer to each other, and can stably clamp the workpiece to be processed. The vertical gap 2210 is reduced so that the force required to rotate the screw rod 21 to bring the two clamping rings 222 closer to each other is reduced, that is, the convenience of the clamping ring 222 clamping the workpiece to be processed is improved.

[0065] By opening a special-shaped hole 2120 in the widened boss 212, when the screw 21 is rotated, a rocker (not shown) matching the special-shaped hole 2120 can be inserted into the special-shaped hole 2120, so that the screw 21 can be rotated in a labor-saving manner, further improving the convenience of the clamping ring 222 in clamping the workpiece to be processed.

[0066] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without departing from the scope of the utility model through the above description. The technical scope of this utility model is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A multi-workpiece clamping drive device for a welding machine, characterized in that: Includes turntable and clamp; The turntable is provided with a plurality of slots, the plurality of slots are evenly distributed along the circumference of the turntable, and a widening slot is provided at one of the opening ends of the slots; The fixture comprises a clamping assembly, a fixture and a pressing plate; The clamping assembly comprises a connecting rod and two clamping rings, wherein the two clamping rings are symmetrically fixed to one end of the connecting rod; One end of the clamp is provided with a widened portion, a pair of fixed plates are fixed on the end surface of the widened portion away from the clamp, a rotating shaft is fixed between the two fixed plates, one end of the clamp away from the widened portion is provided with a groove, a spring is provided in the groove, one end of the spring is connected to the top wall of the groove, one end of the spring away from the top wall of the groove is connected to a pull rod, and the pressure plate is rotatably connected to one end of the pull rod away from the spring away from the top wall of the groove; The end of the connecting rod away from the clamp ring is rotatably connected to the rotating shaft; The clamp is inserted into the clamping slot, and the widened portion is embedded in the widened slot.

2. The multi-workpiece clamping drive device for a welding machine according to claim 1, characterized in that: A buckle is fixed on the end surface of the pressing plate away from the pull rod.

3. The multi-workpiece clamping drive device for a welding machine according to claim 1, characterized in that: A vertical slit is provided on the connecting rod, which divides the end portion of the connecting rod connected to the clamping ring into two parts of equal size, and the two clamping rings are fixedly connected to the two parts respectively. A plurality of vertical grooves are provided on the inner side wall of the clamping ring, and the plurality of vertical grooves are equidistantly arranged along the circumference of the clamping ring.

4. The multi-workpiece clamping drive device for a welding machine according to claim 3, characterized in that: The clamp includes a screw rod, one end of which is provided with a widened boss, the end of the clamp ring away from the connecting rod is provided with an outer convex plate, both of the two outer convex plates are provided with through holes, one of the through holes of the outer convex plates has a thread on its inner wall, the screw rod is inserted into the through holes of the two outer convex plates, and the screw rod is meshed with the outer convex plates with threads.

5. The multi-workpiece clamping drive device for a welding machine according to claim 4, characterized in that: A second widening boss is provided at one end of the screw rod away from the first widening boss, and a special-shaped hole is provided at the end of the second widening boss away from the screw rod.

6. The multi-workpiece clamping drive device for a welding machine according to claim 1, characterized in that: The rotating disk is provided with a plurality of clamping blocks, and the connecting rod can rotate around the rotating shaft until it is clamped with the clamping blocks.

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