Friction welding clamp

Abstract

The utility model belongs to the technical field of friction welding clamps, and particularly relates to a friction welding clamp which comprises an operation table, a frame body is arranged on the operation table, a sliding seat is fixedly connected to the outer wall of the operation table, a hydraulic cylinder is fixedly connected to the outer wall of the frame body, a clamping mechanism is arranged on the frame body, and a turnover mechanism is arranged on the sliding seat. The turnover mechanism comprises a motor and a reciprocating screw, the motor is fixedly connected with the outer wall of the sliding seat, and the reciprocating screw penetrates through the sliding seat and is rotationally connected with the sliding seat. The friction welding clamp is provided with the gear and the tooth block, in the process that the motor drives the frame body to ascend, the purpose of turning over a workpiece can be achieved through meshing of the gear and the tooth block, meanwhile, through the arrangement of the clamping block in the rotating shaft, the frame body can rotate in one direction in the ascending and descending process, through the design, the machined workpiece can be turned over, and the machining efficiency is improved. The workpiece does not need to be turned over and fixed again, and the welding efficiency of the workpiece is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of friction welding jigs, and particularly relates to a friction welding jig. Background Technique

[0002] Friction welding is a welding method that uses the heat generated by the friction of the workpiece contact surface as a heat source to cause plastic deformation of the workpiece under pressure for welding.

[0003] Currently, in the prior art, for example, a Chinese patent with the publication number CN214236732U discloses a profile friction stir welding jig. This device has a simple structure and low cost, can effectively improve the welding efficiency, control the deformation of the welded workpiece, and facilitate subsequent processing. However, when welding relatively thick parts by friction welding, it is necessary to weld both sides of the parts. But this device can only weld one side of the metal part. When it is necessary to weld the other side, the workpiece needs to be turned over and refixed. In view of this, we propose a friction welding jig. Content of the Utility Model

[0004] The main purpose of the utility model is to provide a friction welding jig that can solve the problems raised in the above background technique.

[0005] To achieve the above purpose, a friction welding jig proposed by the utility model includes an operating table. A frame is provided on the operating table. A sliding seat is fixedly connected to the outer wall of the operating table. A hydraulic cylinder is fixedly connected to the outer wall of the frame. A clamping mechanism is provided on the frame. A turning mechanism is provided on the sliding seat. The turning mechanism includes:

[0006] A motor, which is fixedly connected to the outer wall of the sliding seat;

[0007] A reciprocating screw rod, which penetrates through the sliding seat and is rotatably connected to the sliding seat. The reciprocating screw rod is fixedly connected to the output end of the motor;

[0008] A moving block, which is penetrated by the reciprocating screw rod and is threadedly connected to the reciprocating screw rod. The moving block is slidably connected to the inner wall of the sliding seat;

[0009] A rotating shaft, one end of which is rotatably connected to the moving block, and the other end of which is fixedly connected to the outer wall of the frame;

[0010] A gear, which is penetrated by the rotating shaft and is rotatably connected to the rotating shaft. The gear is provided with a clamping groove

[0011] Preferably, a clamping block is slidably connected to the rotating shaft. A third spring is fixedly connected to the outer wall of the clamping block. The end of the third spring away from the clamping block is fixedly connected to the inner wall of the rotating shaft.

[0012] Preferably, the clamping mechanism is provided with a base, the base is fixedly connected to the output end of the hydraulic cylinder, the base is penetrated by the first pressing plate and is slidably connected to the first pressing plate, a first spring is fixedly connected to the outer wall of the first pressing plate, and one end of the first spring away from the first pressing plate is fixedly connected to the inner wall of the base.

[0013] Preferably, the base is provided with a first chute and a second chute, a second pressing plate is slidably connected to the first chute, a guide rod is slidably connected to the second pressing plate to protect the second spring and prevent the second spring from bending under pressure, the guide rod is fixedly connected to the inner wall of the base, a second spring is fixedly connected to the outer wall of the second pressing plate, and there are two sets of second pressing plates up and down, and the two sets of second pressing plates are elastically connected by the second spring.

[0014] Preferably, the second pressing plate is hinged with a hinge rod, one end of the hinge rod away from the second pressing plate is hinged with a sliding block, the sliding block is fixedly connected with a fixed block, a through groove is provided in the fixed block, an inclined plate is slidably connected to the through groove, and the inclined plate is fixedly connected to the first pressing plate.

[0015] Preferably, the sliding seat is provided with a sliding groove, the sliding groove is sleeved with a rotating shaft, and a tooth block is fixedly connected to the outer wall of the sliding seat.

[0016] The utility model provides a friction welding fixture, which has the following beneficial effects:

[0017] (1) In this friction welding fixture, a gear and a tooth block are provided. During the process of the motor driving the frame to rise, through the meshing of the gear and the tooth block, the purpose of turning the workpiece over can be achieved. At the same time, through the setting of the clamping block in the rotating shaft, the frame can achieve one-way rotation during the rising and falling processes. This design can turn over the processed workpiece without fixing the workpiece for turning over again, effectively improving the welding efficiency of the workpiece.

[0018] (2) In this friction welding fixture, the first pressing plate can clamp the workpiece through the drive of the hydraulic cylinder. During this process, the first pressing plate will move under the extrusion of the workpiece. At the same time, through the design of devices such as the inclined plate and the hinge rod, the second pressing plate can clamp the workpiece, thereby improving the stability of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art;

[0020] Figure 1 It is a schematic three-dimensional structure diagram of the whole of the present utility model;

[0021] Figure 2 It is a schematic three-dimensional structure diagram of a part of the turning mechanism of the present utility model;

[0022] Figure 3 This is a schematic diagram of the three-dimensional cross-sectional structure of the gear of the utility model;

[0023] Figure 4 It is a schematic diagram of a partial three-dimensional structure of the utility model;

[0024] Figure 5 The three-dimensional cross-sectional structure of the clamp of the utility model is shown in FIG. Figure 1 ;

[0025] Figure 6 The three-dimensional cross-sectional structure of the clamp of the utility model is shown in FIG. Figure 2 .

[0026] Description of Figure Numbers:

[0027] 1. Operating table; 2. Frame; 21. Hydraulic cylinder; 3. Slide seat; 31. Sliding groove; 32. Tooth block; 4. Clamping mechanism; 41. Base; 410. Sliding groove one; 411. Sliding groove two; 42. Press plate one; 421. Inclined plate; 43. Spring one; 44. Press plate two; 45. Guide rod; 46. Spring two; 47. Articulated rod; 48. Sliding block; 49. Fixed block; 491. Through groove; 5. Turning mechanism; 51. Motor; 52. Reciprocating screw; 53. Moving block; 54. Rotating shaft; 541. Block; 542. Spring three; 55. Gear; 551. Sliding groove.

[0028] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention;

[0030] See also Figures 1 - 6 The utility model proposes a friction welding fixture, including an operating table 1, a frame 2 is provided on the operating table 1, a slide 3 is fixedly connected to the outer wall of the operating table 1, the slide 3 is provided with a sliding groove 31, the sliding groove 31 is sleeved with a rotating shaft 54, a tooth block 32 is fixedly connected to the outer wall of the slide 3, a hydraulic cylinder 21 is fixedly connected to the outer wall of the frame 2, a clamping mechanism 4 is provided on the frame 2, and a flipping mechanism 5 is provided on the slide 3.

[0031] In an embodiment of the present utility model, in order to be able to flip a workpiece, specifically, the flipping mechanism 5 includes a motor 51, the motor 51 is fixedly connected to the outer wall of the sliding seat 3, a reciprocating screw 52, the reciprocating screw 52 penetrates through the sliding seat 3 and is rotatably connected to the sliding seat 3, the reciprocating screw 52 is fixedly connected to the output end of the motor 51, a moving block 53, the moving block 53 is penetrated by the reciprocating screw 52 and is threadedly connected to the reciprocating screw 52, the moving block 53 is slidably connected to the inner wall of the sliding seat 3, a rotating shaft 54, one end of the rotating shaft 54 is rotatably connected to the moving block 53, the other end of the rotating shaft 54 is fixedly connected to the outer wall of the frame 2, a clamping block 541 is slidably connected to the rotating shaft 54, a third spring 542 is fixedly connected to the outer wall of the clamping block 541, and one end of the third spring 542 away from the clamping block 541 is fixedly connected to the inner wall of the rotating shaft 54, a gear 55, the gear 55 is penetrated by the rotating shaft 54 and is rotatably connected to the rotating shaft 54, and the gear 55 is provided with a card slot 551;

[0032] As Figure 1 and Figure 3 shown, when the motor 51 is started, at this time, through the transmission of the reciprocating screw 52, the frame 2 moves upward. When the frame 2 rises to an appropriate height, at this time, the gear 55 meshes with the tooth block 32, causing the gear 55 to rotate. When the gear 55 rotates, at this time, the gear 55 will squeeze the clamping block 541, causing the rotating shaft 54 to drive the frame 2 to rotate. It should be noted that when the gear 55 disengages from the tooth block 32, the frame 2 just rotates 180 degrees. When the frame 2 returns under the drive of the motor 51, during this process, the gear 55 will mesh with the tooth block 32 again, causing the gear 55 to rotate again. When the gear 55 rotates, at this time, the gear 55 will apply a force to the clamping block 541, causing the clamping block 541 to completely enter the inside of the rotating shaft 54, so that the frame 2 remains unchanged.

[0033] Furthermore, the clamping mechanism 4 is provided with a base 41, the base 41 is fixedly connected to the output end of the hydraulic cylinder 21, the base 41 is penetrated by a first pressing plate 42 and is slidably connected to the first pressing plate 42, a first spring 43 is fixedly connected to the outer wall of the first pressing plate 42, and one end of the first spring 43 away from the first pressing plate 42 is fixedly connected to the inner wall of the base 41. The base 41 is provided with a first chute 410 and a second chute 411. A second pressing plate 44 is slidably connected to the first chute 410. A guide rod 45 is slidably connected to the second pressing plate 44, and the guide rod 45 is fixedly connected to the inner wall of the base 41. A second spring 46 is fixedly connected to the outer wall of the second pressing plate 44;

[0034] Furthermore, the second pressing plate 44 is hinged with a hinge rod 47, one end of the hinge rod 47 away from the second pressing plate 44 is hinged with a sliding block 48, the sliding block 48 is fixedly connected with a fixed block 49, the fixed block 49 is provided with a through groove 491, an inclined plate 421 is slidably connected to the through groove 491, and the inclined plate 421 is fixedly connected to the first pressing plate 42;

[0035] In the present utility model, during use, first place two sets of metal parts inside the frame 2, and then start the hydraulic cylinder 21, causing the base 41 to move. During this process, the first pressing plate 42 will come into contact with the workpiece and be squeezed by the workpiece, causing the first pressing plate 42 to slide. During this process, the inclined plate 421 will slide inside the through groove 491 and simultaneously squeeze the fixed block 49, causing the hinge rod 47 to pull the second pressing plate 44 downward to clamp the workpiece. Subsequently, friction welding is performed on the workpiece. When one side of the welding is completed, start the motor 51, causing the frame 2 to drive the workpiece upward. When the frame 2 rises to an appropriate height, the gear 55 meshes with the tooth block 32, causing the gear 55 to rotate. During this process, at this time, the gear 55 will exert a force on the block 541, causing the rotating shaft 54 to drive the frame 2 to rotate 180 degrees, thereby turning the workpiece over. When the frame 2 returns, the gear 55 will mesh with the tooth block 32 again, causing the gear 55 to rotate again. At this time, the gear 55 will exert a force on the block 541, causing the block 541 to completely enter the rotating shaft 54, thereby keeping the frame 2 unchanged. Finally, friction welding is performed on the surface of the workpiece again.

[0036] The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made by using the description and drawings of the present utility model under the inventive concept of the present utility model, or any direct / indirect application in other related technical fields, is included in the patent protection scope of the present utility model.

Claims

1. A friction welding fixture, comprising an operating table (1), characterized in that: The operating table (1) is provided with a frame (2), the outer wall of the operating table (1) is fixedly connected to a slide seat (3), the outer wall of the frame (2) is fixedly connected to a hydraulic cylinder (21), the frame (2) is provided with a clamping mechanism (4), the slide seat (3) is provided with a turning mechanism (5), and the turning mechanism (5) comprises: A motor (51), wherein the motor (51) is fixedly connected to an outer wall of the slide seat (3); a reciprocating screw (52), the reciprocating screw (52) passing through the slide seat (3) and being rotationally connected to the slide seat (3), the reciprocating screw (52) being fixedly connected to an output end of the motor (51); A moving block (53), the moving block (53) being penetrated by the reciprocating screw (52) and being threadedly connected to the reciprocating screw (52), the moving block (53) being slidably connected to the inner wall of the slide seat (3); A rotating shaft (54), one end of the rotating shaft (54) being rotatably connected to the moving block (53), and the other end of the rotating shaft (54) being fixedly connected to the outer wall of the frame (2); A gear (55), the gear (55) is penetrated by the rotating shaft (54) and is rotationally connected to the rotating shaft (54), and the gear (55) is provided with a slot (551).

2. A friction welding fixture according to claim 1, characterized in that: The rotating shaft (54) is slidably connected to a clamping block (541), an outer wall of the clamping block (541) is fixedly connected to a spring three (542), and one end of the spring three (542) away from the clamping block (541) is fixedly connected to the inner wall of the rotating shaft (54).

3. A friction welding fixture according to claim 1, characterized in that: The clamping mechanism (4) is provided with a base (41), the base (41) is fixedly connected to the output end of the hydraulic cylinder (21), the base (41) is penetrated by a pressure plate (42) and is slidably connected to the pressure plate (42), a spring (43) is fixedly connected to the outer wall of the pressure plate (42), and an end of the spring (43) away from the pressure plate (42) is fixedly connected to the inner wall of the base (41).

4. A friction welding fixture according to claim 3, characterized in that: The base (41) is provided with a first slide groove (410) and a second slide groove (411); the first slide groove (410) is slidably connected to a second pressure plate (44); the second pressure plate (44) is slidably connected to a guide rod (45); the guide rod (45) is fixedly connected to the inner wall of the base (41); and the outer wall of the second pressure plate (44) is fixedly connected to a second spring (46).

5. A friction welding fixture according to claim 4, characterized in that: The second pressing plate (44) is hinged with a hinge rod (47), and one end of the hinge rod (47) away from the second pressing plate (44) is hinged with a sliding block (48), and the sliding block (48) is fixedly connected with a fixed block (49), and the fixed block (49) is provided with a through groove (491), and the through groove (491) is slidably connected with an inclined plate (421), and the inclined plate (421) is fixedly connected to the first pressing plate (42).

6. The friction welding fixture according to claim 1, characterized in that: The slide seat (3) is provided with a slide groove (31), the slide groove (31) is sleeved with the rotating shaft (54), and a tooth block (32) is fixedly connected to the outer wall of the slide seat (3).

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