Clamp device and clamping method for new energy automobile cooler machining

Abstract

The invention relates to the technical field of welding clamps, and discloses a clamp device and a clamping method for new energy automobile cooler machining. When the size of the part is larger than the containing size of the die or the part is a curved-surface part, the part (the curved-surface part) is placed above the die and clamped between the vertically-opposite positioning wheels, and the positioning wheels move up and down on the positioning frame so that the part (the curved-surface part) can be clamped and fixed in a self-adaptive mode. The hydraulic distributor is used for controlling the auxiliary wheel to move upwards through hydraulic pressure, so that the auxiliary wheel abuts against the part (the curved-surface part) so as to adaptively support the part (the curved-surface part), then the welding head is used for carrying out friction welding treatment on the part (the curved-surface part), the equipment is adaptive according to the shape of the part for clamping and fixing, and the working efficiency of the equipment is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of welding fixtures, and in particular to a fixture device and a clamping method for processing a new energy vehicle cooler. Background Art

[0002] Hydraulic clamps are clamps that use hydraulic components to replace mechanical parts and realize automatic positioning, support and clamping of workpieces through hydraulic control. They have the advantages of strong clamping force, reliable clamping, stable operation and convenient use. They are widely used in CNC machine tools, machining centers, automated production lines and other scenarios. By assembling the selected hydraulic components and the designed mechanical parts together, the required clamps can be obtained. In welding, hydraulic clamps are more necessary to ensure the accuracy and stability of welding.

[0003] In the existing clamps, such as Chinese patent CN208450824U, the welding workpiece is placed between the first clamping arm and the second clamping arm by setting a first clamping arm, a second clamping arm and a hydraulic cylinder. The range between the two clamping arms can be adjusted by the hydraulic cylinder. After the workpiece is placed in, the rotation of the gear drives the rack to move forward. The movement range of the rack can be limited by the setting of the connecting plate, the limit groove and the screw. One end of the rack is connected to a fastening block. The movement of the rack drives the movement of the first restraining block. The movement of the first fastening block clamps the welding workpiece. This structure is suitable for welding workpieces of different sizes, has a wider range of use, and is more practical.

[0004] However, there are still the following problems: after the hydraulic clamp has completed the single-sided processing of the parts, the hydraulic clamp needs to be manually operated, which can easily flip or move the clamped parts, resulting in slow mutual adaptation of the parts and the welding position during welding, and low equipment efficiency. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a clamping device and a clamping method for processing new energy vehicle coolers, which have the advantages of self-adapting to the shape of the parts for clamping and fixing, thereby improving the working efficiency of the equipment, and solves the problem that the hydraulic clamp needs to be manually operated after the single-sided processing of the parts is completed, and the clamped parts are easily flipped or moved, resulting in slow mutual adaptation of the parts and the welding position during welding, and low working efficiency of the equipment.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a clamp device, comprising a workbench, a welding mechanism arranged on the workbench, and an auxiliary mechanism arranged on the welding mechanism, wherein the welding mechanism comprises a mold, a welding head, a fixing plate, auxiliary wheels, and a hydraulic distributor, wherein the mold is fixedly arranged on the workbench, the welding head is arranged above the workbench, the welding head is located directly above the mold, the welding head is used to perform friction welding on the parts on the mold, a plurality of fixing plates are rotatably matched in the mold, the fixing plates are placed in the side walls of the mold, the fixing plates are rotated into the mold to clamp and fix the parts in the mold, a plurality of auxiliary wheels are arranged on the workbench, the auxiliary wheels are symmetrically arranged beside the mold, the hydraulic distributor is fixedly arranged on the workbench, the hydraulic distributor controls the up and down movement of each auxiliary wheel, and the hydraulic distributor is communicated with the hydraulic system outside the device; The auxiliary mechanism includes a positioning frame and a positioning wheel. The positioning frame is fixedly arranged on the workbench and is located next to the mold. A plurality of positioning wheels are movably arranged on the positioning frame. The positioning wheels are symmetrically arranged on the positioning frame and are located above the mold as a whole. The positioning wheels are movable on the positioning frame. When a curved surface part is placed on the mold, the curved surface part is fixed between the positioning wheels.

[0007] Preferably, the welding mechanism further comprises a support platform, the support platform is fixedly mounted on the workbench, the support platform is a double-layer structure, the mold is fixedly mounted on the top of the support platform, and the mold is located on the upper layer of the support platform.

[0008] Preferably, a pillar is fixedly installed on the workbench, the pillar is adjacent to the support platform, the pillar is slidably fitted with a suspension, a welding motor is fixedly installed on the top of the suspension, the welding motor passes through the suspension, the welding head is rotatably fitted with the bottom end of the suspension, the welding head is power-connected to the welding motor, the welding head is opposite to the inside of the mold, and the welding head is located directly above the friction welding position of the parts.

[0009] Preferably, a plurality of the fixing plates are rotatably fitted on the inner side wall of the mold, the fixing plates are symmetrically arranged on both sides of the mold, the fixing plates are located inside the side walls of the mold, the setting positions of the fixing plates are connected with the placement positions of the parts in the mold, a swivel arm cylinder is fixedly installed on the support platform, the swivel arm cylinder is located at the lower layer of the support platform, belts are tensioned on the axes of the swivel arm cylinder and the axes of the fixing plates, and the belts pass through the support platform.

[0010] Preferably, a plurality of hydraulic cylinders are fixedly mounted on the top of the support platform, the hydraulic cylinders are symmetrically distributed beside the mold, the hydraulic cylinders are all located on the upper layer of the support platform, hydraulic telescopic rods are fixedly mounted on the hydraulic cylinders, the hydraulic telescopic rods are all communicated with the hydraulic cylinders, the extension rods of the hydraulic telescopic rods are rotatably matched with the auxiliary wheels, the rotation planes of the auxiliary wheels are all facing the mold, the hydraulic distributor is fixedly mounted on the support platform, the hydraulic distributor is the same as the hydraulic cylinder, the hydraulic distributor is used to control the flow of hydraulic oil into the hydraulic cylinder, the hydraulic distributor is provided with a hydraulic oil interface, the hydraulic oil interface is used to communicate with a hydraulic system outside the device.

[0011] Preferably, the auxiliary mechanism also includes a plurality of slide rails, the positioning frame is provided with a plurality of slide rails, the slide rails are evenly distributed on the positioning frame, the slide rails are slidably fitted with a plurality of moving parts, the moving parts are distributed up and down in each of the slide rails, the moving parts are rotatably fitted with the positioning wheels, the positioning wheels are adjacent to the mold, and the positioning wheels opposite to each other are in contact with each other.

[0012] Preferably, a spring is provided between the upper and lower moving parts relative to each other, one end of the spring is connected to the upper moving part, and the other end of the spring is connected to the lower moving part, a servo motor is fixedly mounted on the moving part, the servo motor is located on a side of the moving part away from the mold, and the servo motor is power-connected to the positioning wheel located on the same moving part.

[0013] Preferably, a plurality of friction rods are fixedly mounted on the positioning frame, the friction rods are adjacent to the slide rails, the friction rods are slidably fitted with anti-slip rings, the anti-slip rings are fixedly connected to the moving parts, a plurality of detectors are fixedly mounted on the support platform, the detectors are adjacent to the servo motors, detection parts are fixedly mounted on the servo motors, the detection parts are in contact with detection surfaces of the detectors, so that the detectors can detect the height of the detection parts.

[0014] A clamping method for processing a new energy vehicle cooler, using the above-mentioned clamping device Compared with the prior art, the present invention provides a clamp device having the following beneficial effects: 1. The clamping device places the part (curved surface part) above the mold when the part is larger than the accommodating size of the mold or the part is a curved surface part, and clamps the part (curved surface part) between upper and lower positioning wheels. The positioning wheels move up and down on the positioning frame to self-adaptively clamp and fix the part (curved surface part), and the hydraulic distributor uses hydraulic pressure to control the auxiliary wheel to move up so that the auxiliary wheel and the part (curved surface part) are against each other to adaptively support the part (curved surface part), and then the welding head is used to perform friction welding on the part (curved surface part), so that the device can self-adapt to the shape of the part for clamping and fixing, thereby improving the working efficiency of the equipment.

[0015] 2. The clamp device, through the setting of the anti-slip ring and the friction rod, when the parts (curved parts) do not squeeze the upper and lower relative positioning wheels, the positioning wheels are not subjected to external force, that is, the moving parts are not subjected to external force, and the self-gravity of the parts on the moving parts such as the moving parts and the positioning wheels is smaller than the friction force between the anti-slip ring and the friction rod, so that the moving parts cannot move freely on the positioning frame when there are no parts (curved parts) placed between the upper and lower relative positioning wheels, thereby ensuring the stability of equipment operation.

[0016] 3. The clamp device, through the setting of the detector and the detection part, utilizes the detector to connect with the hydraulic distributor signal, so that the position height of the detection part detected by the detector is fed back to the hydraulic distributor in real time, so that the amount of hydraulic oil clearly distributed by the hydraulic distributor enters into each hydraulic cylinder, so as to ensure that when the hydraulic distributor drives the auxiliary wheel to move, the hydraulic distributor will not excessively input excessive hydraulic oil into a certain hydraulic cylinder to cause the auxiliary wheel to be over-lifted, thereby further ensuring the stability of the equipment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the hydraulic clamp of the present invention; Figure 2 It is a schematic diagram of the welding mechanism structure of the present invention; Figure 3 This is a schematic diagram of the structural distribution of the pillars of the present invention; Figure 4 This is a schematic diagram of the structural distribution of the support platform of the present invention; Figure 5 for Figure 4 The enlarged structural diagram at A in the middle; Figure 6 It is a schematic diagram of the auxiliary mechanism structure of the present invention; Figure 7 This is a schematic diagram of the structural distribution of the positioning wheel of the present invention; Figure 8 It is a schematic diagram of the structure distribution of the spring of the present invention.

[0018] In the figure: 1. workbench; 2. welding mechanism; 21. support table; 22. mold; 23. pillar; 24. suspension; 25. welding motor; 26. welding head; 27. fixed plate; 28. swing arm cylinder; 29. ​​belt; 210. hydraulic cylinder; 211. hydraulic telescopic rod; 212. auxiliary wheel; 213. hydraulic distributor; 214. hydraulic oil interface; 3. auxiliary mechanism; 31. positioning frame; 32. slide rail; 33. moving part; 34. positioning wheel; 35. spring; 36. servo motor; 37. friction rod; 38. anti-slip ring; 39. detector; 310. detection part. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a clamping device and a clamping method for processing a new energy vehicle cooler.

[0021] Example 1 In a typical implementation of the present application, Figure 1 As shown, a clamp device includes a workbench 1, a welding mechanism 2 arranged on the workbench 1, and an auxiliary mechanism 3 arranged on the welding mechanism 2. The welding mechanism 2 includes a mold 22, a welding head 26, a fixing plate 27, an auxiliary wheel 212, and a hydraulic distributor 213. The mold 22 is fixedly arranged on the workbench 1. A welding head 26 is arranged above the workbench 1. The welding head 26 is located directly above the mold 22. The welding head 26 is used to perform friction welding on the parts on the mold 22. A plurality of fixing plates 27 are rotatably matched in the mold 22. The fixing plates 27 are placed in the side walls of the mold 22. The fixing plates 27 rotate into the mold 22 to clamp and fix the parts located in the mold 22. A plurality of auxiliary wheels 212 are arranged on the workbench 1. The auxiliary wheels 212 are symmetrically arranged beside the mold 22. A hydraulic distributor 213 is fixedly arranged on the workbench 1. The hydraulic distributor 213 controls the up and down movement of each auxiliary wheel 212. The hydraulic distributor 213 is communicated with a hydraulic system outside the device. The auxiliary mechanism 3 includes a positioning frame 31 and a positioning wheel 34. The positioning frame 31 is fixedly arranged on the workbench 1 and is located next to the mold 22. A plurality of positioning wheels 34 are movably arranged on the positioning frame 31. The positioning wheels 34 are symmetrically arranged on the positioning frame 31. The positioning wheels 34 are located above the mold 22 as a whole. The positioning wheels 34 are movable on the positioning frame 31. When the curved surface part is placed on the mold 22, the curved surface part is fixed between the positioning wheels 34.

[0022] When using the present invention: First, place the part in the mold 22 (when the part is smaller than the capacity of the mold 22 and the part is not a curved part), start the fixing plate 27, the fixing plate 27 rotates to fix the part in the mold 22, and then start the welding head 26, the welding head 26 rotates and moves downward, so that the welding head 26 moves toward the part in the mold 22, so that the welding head 26 friction welds the part in the mold 22, and then the welding head 26 and the fixing plate 27 are reset, and the friction welded part is taken out of the mold 22. When welding a part (curved surface part), the part (curved surface part) is placed above the mold 22, and the part (curved surface part) is clamped between the upper and lower positioning wheels 34, and the positioning wheels 34 move up and down on the positioning frame 31 to clamp and fix the part (curved surface part) in a self-adaptive manner, and the hydraulic distributor 213 is started, and the hydraulic distributor 213 uses hydraulic pressure to control the auxiliary wheel 212 to move up, so that the auxiliary wheel 212 and the part (curved surface part) are against each other to adaptively support the part (curved surface part), and then the welding head 26 is started to make the welding head 26 perform friction welding on the part (curved surface part); When the part is larger than the capacity of the mold 22 or the part is a curved part, the part (curved part) is placed above the mold 22, and the part (curved part) is clamped between the upper and lower relative positioning wheels 34, and the positioning wheels 34 move up and down on the positioning frame 31 to self-adaptively clamp and fix the part (curved part), and the hydraulic distributor 213 uses hydraulic pressure to control the auxiliary wheel 212 to move up, so that the auxiliary wheel 212 and the part (curved part) are abutted to adaptively support the part (curved part), and then the welding head 26 is used to perform friction welding on the part (curved part), so that the equipment can self-adapt to the shape of the part for clamping and fixing, thereby improving the working efficiency of the equipment.

[0023] Example 2 like Figure 2-Figure 5 As shown, the difference from the above embodiment is that the welding mechanism 2 also includes a support table 21, the support table 21 is fixedly installed on the workbench 1, the support table 21 is a double-layer structure, a mold 22 is fixedly installed on the top of the support table 21, and the mold 22 is located on the upper layer of the support table 21.

[0024] Furthermore, a pillar 23 is fixedly installed on the workbench 1, and the pillar 23 is adjacent to the support platform 21. A suspension 24 is slidably fitted on the pillar 23. A welding motor 25 is fixedly installed on the top of the suspension 24. The welding motor 25 runs through the suspension 24. A welding head 26 is rotatably fitted on the bottom end of the suspension 24. The welding head 26 is power-connected to the welding motor 25. The welding head 26 is opposite to the inside of the mold 22, and the welding head 26 is located directly above the friction welding position of the parts.

[0025] Furthermore, a hydraulic movable structure is provided on the suspension 24, and the hydraulic movable structure controls the movement of the suspension 24 on the support 23. The hydraulic movable structure is a common prior art and will not be described in detail here. The hydraulic movable structure of the suspension 24 is connected to the hydraulic system outside the device.

[0026] Among them, after the parts are placed on the mold 22, the suspension 24 is started, the suspension 24 moves on the support 23, the suspension 24 drives the welding motor 25 to move, the welding motor 25 is started, and the welding motor 25 drives the welding head 26 to rotate, so that the welding head 26 is close to the parts on the mold 22, so that the welding head 26 performs friction welding on the parts on the mold 22.

[0027] Furthermore, a plurality of fixed plates 27 are rotatably mounted on the inner side wall of the mold 22. The fixed plates 27 are symmetrically arranged on both sides of the mold 22. The fixed plates 27 are located inside the side walls of the mold 22. The setting position of the fixed plates 27 is connected to the placement position of the parts in the mold 22. A swivel arm cylinder 28 is fixedly installed on the support platform 21. The swivel arm cylinder 28 is located on the lower layer of the support platform 21. Belts 29 are tensioned on the axes of the swivel arm cylinder 28 and the axes of the fixed plates 27. The belts 29 pass through the support platform 21.

[0028] When the parts are placed in the mold 22, the arm cylinder 28 is started, the arm cylinder 28 drives the belt 29 to rotate, and the belt 29 drives the fixed plate 27 to rotate, so that the fixed plate 27 is rotated into the mold 22, so that the fixed plate 27 can press against the parts in the mold 22 from above to clamp and fix the parts in the mold 22.

[0029] Furthermore, a plurality of hydraulic cylinders 210 are fixedly mounted on the top of the support platform 21. The hydraulic cylinders 210 are symmetrically distributed beside the mold 22. The hydraulic cylinders 210 are all located on the upper layer of the support platform 21. Hydraulic telescopic rods 211 are fixedly mounted on the hydraulic cylinders 210. The hydraulic telescopic rods 211 are all communicated with the hydraulic cylinders 210. Auxiliary wheels 212 are rotatably mounted on the extension rods of the hydraulic telescopic rods 211. The rotation planes of the auxiliary wheels 212 are all facing the mold 22. A hydraulic distributor 213 is fixedly mounted on the support platform 21. The hydraulic distributor 213 is the same as the hydraulic cylinder 210. The hydraulic distributor 213 is used to control the flow of hydraulic oil into the hydraulic cylinder 210. A hydraulic oil interface 214 is provided on the hydraulic distributor 213. The hydraulic oil interface 214 is used to communicate with a hydraulic system outside the device.

[0030] Among them, after a part that is larger than the mold 22 or a part that is a curved surface part is placed on the mold 22, the hydraulic distributor 213 is started, and the hydraulic distributor 213 controls the hydraulic oil to enter the hydraulic cylinder 210. The hydraulic oil pushes the hydraulic telescopic rod 211 in the hydraulic cylinder 210 to extend the extension rod of the hydraulic telescopic rod 211. The hydraulic telescopic rod 211 drives the auxiliary wheel 212 to move, so that the auxiliary wheel 212 is close to the part (curved surface part). When the auxiliary wheel 212 is close to the part (curved surface part), the hydraulic distributor 213 controls the hydraulic oil to no longer enter the hydraulic cylinder 210 where the auxiliary wheel 212 has been close to the part (curved surface part), so that the auxiliary wheel 212 can support the part (curved surface part) in a self-adaptive manner.

[0031] Example 3 like Figure 6-Figure 8 As shown, the difference from the above embodiment is that the auxiliary mechanism 3 also includes a plurality of slide rails 32, a plurality of slide rails 32 are provided on the positioning frame 31, the slide rails 32 are evenly distributed on the positioning frame 31, and a plurality of moving parts 33 are slidably matched on the slide rails 32. The moving parts 33 are distributed up and down in each slide rail 32, and the moving parts 33 are rotatably matched with positioning wheels 34, and the positioning wheels 34 are adjacent to the mold 22, and the upper and lower relative positioning wheels 34 are in contact with each other.

[0032] Furthermore, a spring 35 is provided between the upper and lower relative moving parts 33, one end of the spring 35 is connected to the upper moving part 33, and the other end of the spring 35 is connected to the lower moving part 33, and a servo motor 36 is fixedly installed on the moving part 33, and the servo motor 36 is located on the side of the moving part 33 away from the mold 22, and the servo motor 36 is power-connected to the positioning wheel 34 located on the same moving part 33.

[0033] Among them, when the part (curved surface part) is placed on the mold 22, the part (curved surface part) is first manually clamped between the upper and lower relative positioning wheels 34, and the positioning wheel 34 is pushed to move by the extrusion of the part (curved surface part), and the positioning wheel 34 drives the moving part 33 to move on the positioning frame 31, so that the upper and lower relative moving parts 33 are separated from each other, thereby stretching the spring 35, and the restoring force of the spring 35 drives the upper and lower relative positioning wheels 34 to move relatively, so that the positioning wheel 34 is always against the part (curved surface part) to clamp and fix the part (curved surface part) in a self-adaptive manner. When friction welding the part (curved surface part), the servo motor 36 is started, and the servo motor 36 drives the positioning wheel 34 to rotate, so that the positioning wheel 34 drives the part (curved surface part) to move, so that the part (curved surface part) moves the position where friction welding is required to be performed to the bottom of the welding head 26.

[0034] Furthermore, a plurality of friction rods 37 are fixedly mounted on the positioning frame 31, and the friction rods 37 are all adjacent to the slide rails 32. The friction rods 37 are slidably fitted with anti-slip rings 38, and the anti-slip rings 38 are fixedly connected to the moving parts 33. A plurality of detectors 39 are fixedly mounted on the support platform 21, and the detectors 39 are all adjacent to the servo motors 36. A detection part 310 is fixedly mounted on the servo motors 36, and the detection surfaces of the detection parts 310 and the detectors 39 are in contact with each other, so that the detectors 39 can detect the height of the detection parts 310.

[0035] Furthermore, the detector 39 is connected to the hydraulic distributor 213 by signal, and the position height of the detection member 310 detected by the detector 39 is fed back to the hydraulic distributor 213 in real time, so that the hydraulic distributor 213 can clearly distribute the amount of hydraulic oil into each hydraulic cylinder 210 to ensure that when the hydraulic distributor 213 drives the auxiliary wheel 212 to move, the hydraulic distributor 213 will not excessively input excessive hydraulic oil into a certain hydraulic cylinder 210 and cause the auxiliary wheel 212 to be over-lifted, thereby ensuring the stability of the equipment operation.

[0036] Among them, when the moving part 33 moves, the anti-slip ring 38 of the moving part 33 moves, and friction is generated between the anti-slip ring 38 and the friction rod 37. When the anti-slip ring 38 is not squeezed by the parts (curved parts) (that is, not subjected to external force), the self-weight of the parts on the moving part 33 such as the moving part 33 and the positioning wheel 34 is less than the friction between the anti-slip ring 38 and the friction rod 37. At the same time, as the moving part 33 moves, the moving part 33 drives the servo motor 36 to move, and the servo motor 36 drives the detection part 310 to move, so that the detector 39 detects the movement of the detection part 310, and the detector 39 transmits the height signal of the detection part 310 after moving to the hydraulic distributor 213, so that the hydraulic distributor 213 distributes the hydraulic oil in each hydraulic cylinder 210.

[0037] The overall working principle of the clamp device: First, place the part in the mold 22 (when the part is smaller than the capacity of the mold 22 and the part is not a curved part), start the fixing plate 27, the fixing plate 27 rotates to fix the part in the mold 22, and then start the welding head 26, the welding head 26 rotates and moves downward, so that the welding head 26 moves toward the part in the mold 22, so that the welding head 26 friction welds the part in the mold 22, and then the welding head 26 and the fixing plate 27 are reset, and the friction welded part is taken out of the mold 22. When welding a part (curved surface part), the part (curved surface part) is placed above the mold 22, and the part (curved surface part) is clamped between the upper and lower positioning wheels 34, and the positioning wheels 34 move up and down on the positioning frame 31 to clamp and fix the part (curved surface part) in a self-adaptive manner, and the hydraulic distributor 213 is started, and the hydraulic distributor 213 uses hydraulic pressure to control the auxiliary wheel 212 to move up, so that the auxiliary wheel 212 and the part (curved surface part) are against each other to adaptively support the part (curved surface part), and then the welding head 26 is started to make the welding head 26 perform friction welding on the part (curved surface part); After the part is placed on the mold 22, the suspension 24 is started, the suspension 24 moves on the support 23, the suspension 24 drives the welding motor 25 to move, the welding motor 25 is started, and the welding motor 25 drives the welding head 26 to rotate, so that the welding head 26 is close to the part on the mold 22, so that the welding head 26 performs friction welding on the part on the mold 22; When the part is placed in the mold 22, the rotating arm cylinder 28 is started, the rotating arm cylinder 28 drives the belt 29 to rotate, and the belt 29 drives the fixed plate 27 to rotate, so that the fixed plate 27 is rotated into the mold 22, so that the fixed plate 27 presses against the part in the mold 22 from above, so as to clamp and fix the part in the mold 22; After a part that is larger than the mold 22 or a curved surface part is placed on the mold 22, the hydraulic distributor 213 is started, and the hydraulic distributor 213 controls the hydraulic oil to enter the hydraulic cylinder 210. The hydraulic oil pushes the hydraulic telescopic rod 211 in the hydraulic cylinder 210, so that the extension rod of the hydraulic telescopic rod 211 is extended, and the hydraulic telescopic rod 211 drives the auxiliary wheel 212 to move, so that the auxiliary wheel 212 is close to the part (curved surface part). When the auxiliary wheel 212 is close to the part (curved surface part), the hydraulic distributor 213 controls the hydraulic oil to stop entering the hydraulic cylinder 210 where the auxiliary wheel 212 has been close to the part (curved surface part), so that the auxiliary wheel 212 supports the part (curved surface part) in a self-adaptive manner; When the part (curved surface part) is placed on the mold 22, the part (curved surface part) is first manually clamped between the upper and lower relative positioning wheels 34, and the positioning wheel 34 is pushed to move by the extrusion of the part (curved surface part), and the positioning wheel 34 drives the moving part 33 to move on the positioning frame 31, so that the upper and lower relative moving parts 33 are separated from each other, so that the spring 35 is stretched, and the restoring force of the spring 35 drives the upper and lower relative positioning wheels 34 to move relatively, so that the positioning wheel 34 always presses against the part (curved surface part) to clamp and fix the part (curved surface part) in a self-adaptive manner. When friction welding the part (curved surface part), the servo motor 36 is started, and the servo motor 36 drives the positioning wheel 34 to rotate, so that the positioning wheel 34 drives the part (curved surface part) to move, so that the part (curved surface part) moves the position where friction welding is required to be performed to the position directly below the welding head 26; When the moving part 33 moves, the anti-slip ring 38 of the moving part 33 moves, and friction is generated between the anti-slip ring 38 and the friction rod 37. When the anti-slip ring 38 is not squeezed by a part (curved part) (i.e., not subjected to external force), the self-weight of the moving part 33, the positioning wheel 34 and other parts on the moving part 33 is smaller than the friction force between the anti-slip ring 38 and the friction rod 37. At the same time, as the moving part 33 moves, the moving part 33 drives the servo motor 36 to move, and the servo motor 36 drives the detection part 310 to move, so that the detector 39 detects the movement of the detection part 310. The detector 39 transmits the height signal of the detection part 310 after movement to the hydraulic distributor 213, so that the hydraulic distributor 213 distributes the hydraulic oil in each hydraulic cylinder 210.

[0038] A clamping method for processing a new energy vehicle cooler, using the above-mentioned clamping device Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixture device, comprising a workbench, a welding mechanism arranged on the workbench, and an auxiliary mechanism arranged on the welding mechanism, characterized in that: The welding mechanism includes a mold, a welding head, a fixed plate, auxiliary wheels, and a hydraulic distributor. The mold is fixedly arranged on the workbench, the welding head is arranged above the workbench, the welding head is located directly above the mold, and the welding head is used to perform friction welding on the parts on the mold. A plurality of the fixed plates are rotatably matched in the mold, the fixed plates are placed in the side walls of the mold, and the fixed plates are rotated into the mold to clamp and fix the parts in the mold. A plurality of the auxiliary wheels are arranged on the workbench, and the auxiliary wheels are symmetrically arranged beside the mold. The hydraulic distributor is fixedly arranged on the workbench, and the hydraulic distributor controls the up and down movement of each auxiliary wheel, and the hydraulic distributor is communicated with the hydraulic system outside the device. The auxiliary mechanism includes a positioning frame and a positioning wheel. The positioning frame is fixedly arranged on the workbench and is located next to the mold. A plurality of positioning wheels are movably arranged on the positioning frame. The positioning wheels are symmetrically arranged on the positioning frame and are located above the mold as a whole. The positioning wheels are movable on the positioning frame. When a curved surface part is placed on the mold, the curved surface part is fixed between the positioning wheels.

2. A clamping device according to claim 1, characterized in that: The welding mechanism also includes a support platform, which is fixedly mounted on the workbench. The support platform is a double-layer structure, and the mold is fixedly mounted on the top of the support platform. The mold is located on the upper layer of the support platform.

3. A clamping device and a clamping method for processing a new energy vehicle cooler according to claim 2, characterized in that: A pillar is fixedly installed on the workbench, and the pillar is adjacent to the supporting platform. A suspension is slidably fitted on the pillar. A welding motor is fixedly installed on the top of the suspension, and the welding motor passes through the suspension. The welding head is rotatably fitted on the bottom end of the suspension, and the welding head is connected to the welding motor power. The welding head is opposite to the inside of the mold, and the welding head is located directly above the friction welding position of the parts.

4. A clamping device according to claim 3, characterized in that: A plurality of fixing plates are rotatably fitted on the inner side wall of the mold, the fixing plates are symmetrically arranged on both sides of the mold, the fixing plates are located inside the side walls of the mold, the setting positions of the fixing plates are connected with the placement positions of the parts in the mold, a rotating arm cylinder is fixedly installed on the support platform, the rotating arm cylinder is located at the lower layer of the support platform, belts are tensioned on the axes of the rotating arm cylinder and the fixing plates, and the belts pass through the support platform.

5. A clamping device according to claim 4, characterized in that: A plurality of hydraulic cylinders are fixedly mounted on the top of the support platform, and the hydraulic cylinders are symmetrically distributed beside the mold. The hydraulic cylinders are all located on the upper layer of the support platform, and hydraulic telescopic rods are fixedly mounted on the hydraulic cylinders, and the hydraulic telescopic rods are all communicated with the hydraulic cylinders. The extension rods of the hydraulic telescopic rods are rotatably matched with the auxiliary wheels, and the rotation planes of the auxiliary wheels are all facing the mold. The hydraulic distributor is fixedly mounted on the support platform, and the hydraulic distributor is the same as the hydraulic cylinder. The hydraulic distributor is used to control the flow of hydraulic oil into the hydraulic cylinder. A hydraulic oil interface is provided on the hydraulic distributor, and the hydraulic oil interface is used to communicate with a hydraulic system outside the device.

6. A clamping device according to claim 5, characterized in that: The auxiliary mechanism also includes a plurality of slide rails, and the positioning frame is provided with a plurality of the slide rails, which are evenly distributed on the positioning frame. The slide rails are slidably fitted with a plurality of moving parts, and the moving parts are distributed up and down in each of the slide rails. The moving parts are rotatably fitted with the positioning wheels, and the positioning wheels are adjacent to the mold, and the positioning wheels that are opposite to each other are in contact with each other.

7. A clamping device according to claim 6, characterized in that: A spring is provided between the upper and lower moving parts relative to each other, one end of the spring is connected to the upper moving part, and the other end of the spring is connected to the lower moving part. A servo motor is fixedly installed on the moving part, and the servo motor is located on a side of the moving part away from the mold. The servo motor is power-connected to the positioning wheel located on the same moving part.

8. A clamping device according to claim 7, characterized in that: A plurality of friction rods are fixedly mounted on the positioning frame, the friction rods are all adjacent to the slide rails, the friction rods are slidably fitted with anti-slip rings, the anti-slip rings are fixedly connected to the moving parts, a plurality of detectors are fixedly mounted on the support platform, the detectors are all adjacent to the servo motors, detection parts are fixedly mounted on the servo motors, the detection parts are in contact with detection surfaces of the detectors, so that the detectors can detect the height of the detection parts.

9. A clamping method for processing a new energy vehicle cooler, characterized in that: The clamp device according to claims 1-8 is used.

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