Friction welding clamp for water cooling plate

Abstract

The utility model provides a cold plate friction welding clamp which comprises a rectangular frame and a rectangular plate fixedly arranged at the top end of the rectangular frame, a plurality of sets of pressing mechanisms used for pressing a water cooling plate are symmetrically arranged on the rectangular plate in the length direction of the rectangular plate, a plurality of strip holes are formed in the rectangular plate in the length direction of the rectangular plate, and at least one padding mechanism is arranged on each strip hole. When the first inner threaded pipe is rotated, the screw cannot rotate due to the fact that the guide rod is clamped in the blind groove of the inner column and can only move axially, and the axial movement of the screw pushes or jacks up the bottom wall of the longitudinal blind groove of the cushion column through the limiting rod at the end of the screw. Therefore, the final supporting height of the cushion column is accurately and finely adjusted. After the rectangular plate is adjusted in place, the pressing mechanism on the rectangular plate presses downwards, the water-cooling plate is firmly pressed on the cushion column supporting face matched with the thickness of the water-cooling plate, friction welding is carried out, the cushion column supporting face and the pressing mechanism act synergistically, the water-cooling plate can be firmly fixed, and the welding deformation risk is reduced.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, specifically to a water-cooled plate friction welding fixture. Background Technology

[0002] Water-cooled plates, as key components in heat dissipation systems, are widely used in new energy vehicle batteries, power electronic equipment, and other fields. Their performance directly affects the heat dissipation efficiency and reliability of the equipment. Friction welding, as an efficient and reliable solid-state joining technology, shows significant advantages in manufacturing water-cooled plates with complex flow channels, enabling high-strength sealed welds. During the friction welding process of water-cooled plates, the stability and adaptability of the fixture are crucial. The fixture needs to firmly fix the water-cooled plate to be welded, ensuring it maintains a precise relative position and contact state under high-speed rotation and upsetting pressure. In actual production, water-cooled plates come in various thicknesses. Traditional fixtures have a fixed support structure height, which cannot be adjusted according to the thickness of the water-cooled plate. When dealing with water-cooled plates of different thicknesses, a mismatch between the support height and the plate thickness can easily occur. If the support is too high, the pressing mechanism cannot effectively clamp the water-cooled plate, easily causing displacement or vibration during welding. If the support is too low, the water-cooled plate may be subjected to excessive pressure, causing deformation, and even affecting the bonding accuracy of the weld surface. This lack of adaptability not only reduces the versatility of the fixture, but may also lead to a decline in welding quality due to unreliable fixing, increasing product scrap rate and production costs. Utility Model Content

[0003] The main purpose of this utility model is to provide a friction welding fixture for water-cooled plates, so as to solve the problem that the support structure of traditional fixtures in the prior art is usually designed with a fixed height. However, in actual production, the overall thickness or the thickness of local areas of water-cooled plates varies due to design requirements or processing tolerances, and the fixed-height support structure cannot adapt to such thickness changes.

[0004] To achieve the above objectives, this utility model provides a water-cooled plate friction welding fixture, including a rectangular frame and a rectangular plate fixed at the top of the rectangular frame. Multiple pressing mechanisms for pressing the water-cooled plate are symmetrically arranged along the length of the rectangular plate. Multiple slots are opened along the length of the rectangular plate, and at least one padding mechanism is provided on each slot.

[0005] Each padding mechanism includes a flange ring, inner column, telescopic tube assembly, extension tube, screw, and outer tube;

[0006] The flange ring is mounted on the rectangular plate;

[0007] The inner column has a through hole along its axial direction, and two first blind grooves are symmetrically arranged on both sides of the through hole along its axial direction.

[0008] The expansion joint assembly is fitted around the inner column, with one end abutting against the flange ring;

[0009] One end of the extension tube abuts against the other end of the telescopic tube assembly. The other end of the extension tube is coaxially connected to the pad column. The pad column is opened with a transverse through groove and a longitudinal blind groove along its axial direction. The longitudinal blind groove and the transverse through groove intersect at a cross.

[0010] A guide rod and a limiting rod are fixed to the middle part and one end of the screw, respectively;

[0011] One end of the outer tube is coaxially connected to the flange ring, and the other end passes through the slot to install the bearing. The bearing is fixed by the first internal threaded tube, which is screwed to the screw rod. The screw rod passes through the outer tube, the through hole, and the intersection of the longitudinal blind groove and the transverse through groove in sequence. The guide rod can slide in the two first blind grooves, and the limiting rod can abut against the bottom wall of the longitudinal blind groove.

[0012] Preferably, the telescopic tube assembly includes an externally threaded tube and a second internally threaded tube, which are screwed together. One end of the externally threaded tube abuts against the end of the extension tube away from the gasket, and one end of the second internally threaded tube abuts against the flange ring.

[0013] Preferably, one end of the externally threaded pipe and the second internally threaded pipe are coaxially connected to the ring, the ring on the externally threaded pipe abuts against the end of the extension pipe away from the gasket, and the ring on the second internally threaded pipe abuts against the flange ring.

[0014] Preferably, the outer ring wall of the first internally threaded tube is coaxially fixed with a rotating ring, and multiple grooves are formed on the circumference of the rotating ring.

[0015] Preferably, the pressing mechanism includes a base frame, the bottom end of which is fixedly connected to a rectangular plate, and a Z-shaped plate is hinged to the top wall. The bottom corner of the Z-shaped plate is hinged to the top of the base frame, and a cylinder is hinged to one end of the bottom.

[0016] The cylinder base is fixedly connected to the rectangular plate.

[0017] Preferably, a rubber block is fixedly installed at the pressing end of the Z-shaped plate.

[0018] Preferably, the base frame includes a T-shaped plate and two vertical plates. The T-shaped plate is fixed on the rectangular plate, and an extension rod is fixed at one end of the T-shaped plate. One end of each of the two vertical plates is fixed on both sides of the extension rod, and a shaft is rotatably mounted at the other end. The bottom corner of the Z-shaped plate is fixedly sleeved on the shaft.

[0019] The beneficial effects of the above scheme are:

[0020] Based on the current thickness of the water-cooled plate, the length of the telescopic tube assembly is manually rotated and adjusted to make a preliminary height setting. The pre-adjusted telescopic tube assembly is then fitted onto the inner column, with one end abutting the flange ring and the other end abutting the extension tube. The extension tube is then coaxially connected to the pad column. A screw with a guide rod and a limiting rod is passed sequentially through the through holes of the bearing, the first internal threaded tube, the outer tube, and the inner column, finally entering the cross groove on the pad column. The first internal threaded tube is rotated, but the screw cannot rotate because the guide rod is stuck in the blind groove of the inner column; it can only move axially. The axial movement of the screw pushes or lifts the bottom wall of the longitudinal blind groove of the pad column through the limiting rod at its end. This allows for precise fine-tuning of the final support height of the pad column. After adjustment, the pressing mechanism on the rectangular plate presses down, firmly pressing the water-cooled plate onto the pad column support surface that has been adapted to its thickness for friction welding. The pad column support surface and the pressing mechanism work together to firmly fix the water-cooled plate and reduce the risk of welding deformation. At the same time, the rapid adjustment feature shortens the clamping time and improves the efficiency and yield of friction welding operations. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural schematic diagram of the water-cooled plate friction welding fixture of this utility model;

[0022] Figure 2 This is a three-dimensional structural schematic diagram of the water-cooled plate friction welding fixture padding mechanism of this utility model;

[0023] Figure 3 This is a front view structural schematic diagram of the water-cooled plate friction welding fixture padding mechanism of this utility model;

[0024] Figure 4 yes Figure 1 A magnified structural diagram of region A in the middle.

[0025] Explanation of reference numerals in the attached figures

[0026] 1. Rectangular frame; 2. Rectangular plate; 21. Slot hole; 3. Pressing mechanism; 31. Base frame; 32. Z-shaped plate; 33. Cylinder; 34. Rubber block; 310. T-shaped plate; 311. Vertical plate; 312. Extension rod; 313. Shaft; 4. Pad mechanism; 41. Flange ring; 43. Telescopic tube assembly; 44. Extension tube; 45. Pad column; 451. Transverse through groove; 452. Longitudinal blind groove; 46. Screw; 47. Outer tube; 48. Bearing; 49. First internal threaded tube; 431. External threaded tube; 432. Second internal threaded tube; 433. Ring; 400. Rotating ring; 401. Groove. Detailed Implementation

[0027] First embodiment:

[0028] For example, 1- Figure 4As shown, this embodiment provides a water-cooled plate friction welding fixture, including a rectangular frame 1 and a rectangular plate 2 fixed to the top of the rectangular frame 1. Multiple sets of pressing mechanisms 3 for pressing the water-cooled plate are symmetrically arranged along the length of the rectangular plate 2. Multiple slots 21 are formed along the length of the rectangular plate 2, and at least one padding mechanism 4 is provided on each slot 21. Figure 4 As shown, each padding mechanism 4 includes a flange ring 41, an inner column, a telescopic tube assembly 43, an extension tube 44, a screw 46, and an outer tube 47. The flange ring 41 is mounted on the rectangular plate 2. The inner column has a through hole along its axial direction, and two first blind grooves symmetrically arranged on both sides of the through hole are also formed along its axial direction. The telescopic tube assembly 43 is sleeved around the inner column, and one end of the telescopic tube assembly 43 abuts against the flange ring 41. The telescopic tube assembly 43 includes an externally threaded tube 431 and a second internally threaded tube 432, which are screwed together. One end of the externally threaded tube 431 abuts against the end of the extension tube 44 away from the pad 45, and one end of the second internally threaded tube 432 abuts against the flange ring 41. One end of the externally threaded tube 431 and the second internally threaded tube 432 are coaxially connected to the ring 433. The ring 433 on the externally threaded tube 431 abuts against the end of the extension tube 44 away from the pad 45, and the ring 433 on the second internally threaded tube 432 abuts against the flange ring 41. The telescopic tube assembly 43 includes the externally threaded tube 431 and the second internally threaded tube 432, allowing the operator to adjust the length of the telescopic tube assembly 43. One end of the extension tube 44 abuts against the other end of the telescopic tube assembly 43, and the other end of the extension tube 44 is coaxially connected to the pad 45. The pad 45 has a transverse through groove 451 and a longitudinal blind groove 452 extending through it along its axial direction. The longitudinal blind groove 452 and the transverse through groove 451 are arranged in a cross shape. A guide rod and a limiting rod are fixed in the middle and one end of the screw 46, respectively. One end of the outer tube 47 is coaxially connected to the flange ring 41, and the other end of the outer tube 47 passes through the slot 21 to install the bearing 48. The inner ring of the bearing 48 is fixedly fitted with the first internally threaded tube 49. The outer ring wall of the first internally threaded tube 49 is coaxially fixedly fitted with the rotating ring 400. The rotating ring 400 has multiple grooves 401 on its circumference to facilitate the operator's rotation of the first internally threaded tube 49. The first internally threaded tube 49 is screwed to the screw rod 46. The screw rod 46 passes through the outer tube 47, the flange ring, the through hole, and the intersection of the longitudinal blind groove 452 and the transverse through groove 451 in sequence. The guide rod can slide in the two first blind grooves, and the limiting rod can abut against the bottom wall of the longitudinal blind groove 452.

[0029] Based on the current thickness of the water-cooled plate, manually rotate and adjust the length of the telescopic tube assembly 43 to perform a preliminary height setting. Place the pre-adjusted telescopic tube assembly 43 onto the inner column, with one end abutting the flange ring 41 and the other end abutting the extension tube 44. The extension tube 44 is then coaxially connected to the pad column 45. Pass the screw 46, equipped with a guide rod and a limiting rod, sequentially through the bearing 48, the first internal threaded tube 49, the outer tube 47, and the through hole of the inner column, finally inserting it into the cross groove on the pad column 45 (the intersection of the transverse through groove 451 and the longitudinal blind groove 452). Rotate the first internal threaded tube 49; the screw 46 cannot rotate because the guide rod is stuck in the first blind groove of the inner column, and can only move axially. The axial movement of the screw 46 is achieved by the limiting rod at its end abutting against the bottom wall of the longitudinal blind groove 452 of the pad column 45. This allows for precise fine-tuning of the final support height of the pad column 45. After adjustment, the pressing mechanism 3 on the rectangular plate 2 presses down, firmly pressing the water-cooled plate onto the support surface of the pad column 45, which has been adapted to its thickness, for friction welding. The support surface of the pad column 45 and the pressing mechanism 3 work together to firmly fix the water-cooled plate and reduce the risk of welding deformation. At the same time, the rapid adjustment feature shortens the clamping time and improves the efficiency and yield of friction welding operations.

[0030] like Figure 1 , Figure 4 As shown, the pressing mechanism 3 includes a base frame 31. The bottom end of the base frame 31 is fixedly connected to the rectangular plate 2, and the top wall is hinged to a Z-shaped plate 32. The bottom corner of the Z-shaped plate 32 is hinged to the top of the base frame 31, and one end of the bottom of the Z-shaped plate 32 is hinged to a cylinder 33. The cylinder seat of the cylinder 33 is fixedly connected to the rectangular plate 2. A rubber block 34 is fixedly installed at the pressing end of the Z-shaped plate 32. The base frame 31 includes a T-shaped plate 310 and two vertical plates 311. The T-shaped plate 310 is fixedly mounted on the rectangular plate 2, and one end of the T-shaped plate 310 is fixedly mounted with an extension rod 312. One end of each of the two vertical plates 311 is fixedly mounted on both sides of the extension rod 312, and the other end is rotatably mounted with a shaft 313. The bottom corner of the Z-shaped plate 32 is fixedly sleeved on the shaft 313.

[0031] The operator first adjusts the length of the telescopic tube assembly 43 according to the thickness of the water-cooled plate to be welded, thus initially setting the support height. The telescopic tube assembly 43 consists of an externally threaded tube 431 and a second internally threaded tube 432 screwed together. By manually rotating both, the overall length is changed to fit the approximate thickness requirement of the water-cooled plate. After adjustment, the telescopic tube assembly 43 is fitted around the inner column, with one end abutting against the flange ring 41 on the rectangular plate 2 and the other end abutting against the extension tube 44. The end of the extension tube 44 away from the telescopic tube assembly 43 is coaxially connected to the pad post 45. The screw 46, equipped with a guide rod and a limiting rod, is inserted into the fixture along a preset path. The screw 46 passes sequentially through the first internally threaded tube 49 of the bearing 48 sleeve, the outer tube 47, and the intersection of the transverse through groove 451 and the longitudinal blind groove 452 of the inner column. At this time, the guide rod in the middle of the screw 46 is locked in the two first blind grooves of the inner column. The limiting rod at the end of the screw 46 corresponds to the longitudinal blind groove 452 of the pad 45. The support surface of the pad 45 is calibrated by axial movement of the screw 46. The support height of the pad 45 is precisely adjusted by rotating the first internal threaded tube 49. The operator rotates the rotating ring 400 of the outer ring of the first internal threaded tube 49 to drive the first internal threaded tube 49 to rotate. Since the first internal threaded tube 49 is screwed to the screw 46 and the screw 46 is restricted from rotating by the guide rod, the screw 46 moves axially with the rotation of the first internal threaded tube 49. The axial movement of the screw 46 is transmitted to the pad 45 through the limiting rod at the end. After the height is adjusted, the water-cooled plate to be welded is placed on the support surface of the pad 45. The cylinder seat of the cylinder 33 is fixed on the rectangular plate 2. The cylinder piston rod is hinged to one end of the bottom of the Z-shaped plate 32. The bottom corner of the Z-shaped plate 32 is rotatably connected to the vertical plate 311 of the base frame 31 through the shaft 313. The cylinder 33 is activated, and the piston rod extends and retracts, causing the Z-shaped plate 32 to rotate around the shaft 313. The pressing end of the Z-shaped plate 32 (fixed with a rubber block 34 to prevent damage to the water-cooled plate) flips downward until the rubber block 34 is in close contact with the surface of the water-cooled plate. The pressing mechanism 3 and the support surface of the pad column 45 work together to firmly clamp the water-cooled plate from above and below, preventing displacement due to vibration or force during welding. After fixing, friction welding can be performed on the water-cooled plate. During welding, the stable support and clamping effect of the fixture can reduce the risk of workpiece deformation during welding. After welding is completed, the cylinder 33 is activated in reverse, and the pressing end of the Z-shaped plate 32 flips upward to release the water-cooled plate, allowing the workpiece to be removed, completing one work cycle.

Claims

1. A friction welding fixture for water-cooled plates, comprising a rectangular frame and a rectangular plate fixed to the top of the rectangular frame, wherein multiple pressing mechanisms for pressing the water-cooled plates are symmetrically arranged along the length of the rectangular plate, characterized in that, The rectangular plate has multiple slots along its length, and at least one padding mechanism is provided on each slot. Each installation mechanism includes: Flange ring, which is mounted on a rectangular plate; The inner column has a perforation along its axial direction and two first blind grooves symmetrically arranged on both sides of the perforation. The telescopic tube assembly is sleeved around the inner column, with one end abutting against the flange ring; The extension tube has one end abutting against the other end of the telescopic tube assembly. The other end of the extension tube is coaxially connected to the pad column. The pad column has a transverse through groove and a longitudinal blind groove along its axial direction. The longitudinal blind groove and the transverse through groove intersect at a cross. A guide rod and a limiting rod are fixed to the middle part and one end of the screw, respectively; The outer tube has one end coaxially connected to the flange ring, and the other end passes through the slot to install the bearing. The inner ring of the bearing is fixedly fitted with the first internal threaded tube. The first internal threaded tube is screwed to the screw rod. The screw rod passes through the outer tube, the through hole and the intersection of the longitudinal blind groove and the transverse through groove in sequence. The guide rod can slide in the two first blind grooves, and the limiting rod can abut against the bottom wall of the longitudinal blind groove.

2. The water-cooled plate friction welding fixture according to claim 1, characterized in that, The telescopic tube assembly includes an externally threaded tube and a second internally threaded tube, which are screwed together. One end of the externally threaded tube abuts against the end of the extension tube away from the gasket, and one end of the second internally threaded tube abuts against the flange ring.

3. The water-cooled plate friction welding fixture according to claim 2, characterized in that, One end of the externally threaded pipe and the second internally threaded pipe are coaxially connected to the ring. The ring on the externally threaded pipe abuts against the end of the extension pipe away from the gasket, and the ring on the second internally threaded pipe abuts against the flange ring.

4. The water-cooled plate friction welding fixture according to claim 1, characterized in that, The outer ring wall of the first internally threaded pipe is coaxially fixed with a rotating ring, and multiple grooves are opened on the circumference of the rotating ring.

5. The water-cooled plate friction welding fixture according to claim 1, characterized in that, The pressing mechanism includes a base frame, the bottom end of which is fixedly connected to a rectangular plate, and a Z-shaped plate is hinged to the top wall. The bottom corner of the Z-shaped plate is hinged to the top of the base frame, and a cylinder is hinged to one end of the bottom. The cylinder base is fixedly connected to the rectangular plate.

6. The water-cooled plate friction welding fixture according to claim 5, characterized in that, A rubber block is fixedly installed at the pressing end of the Z-shaped plate.

7. The water-cooled plate friction welding fixture according to claim 5, characterized in that, The base frame includes a T-shaped plate and two vertical plates. The T-shaped plate is fixed on the rectangular plate, and an extension rod is fixed at one end of the T-shaped plate. One end of the two vertical plates is fixed on both sides of the extension rod, and a shaft is rotatably installed at the other end. The bottom corner of the Z-shaped plate is fixed on the shaft.

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