Welding device for connecting cooling pump and copper pipe

Abstract

A welding device for connecting a cooling pump and a copper pipe, relating to the technical field of cooling pump and copper pipe welding. The device comprises a welding platen (1) having two clamps provided on a plate surface thereof, wherein one of the clamps is capable of moving close to or away from the other clamp in a first direction, clamping ends of each of the two clamps move toward each other in a second direction for clamping, and clamping centerlines of the two clamps always coincide in the first direction. A welding device (2) capable of moving in the first direction is provided on the welding platen (1). By rotating a welder (23) along an annular support (21), the need for a secondary adjustment of a pump housing and a copper pipe is eliminated. When a welding end of the welder (23) is adjusted to be in contact with a welding position, a first driving member (221) drives the welder (23) to rotate along the annular support (21), so as to perform circumferential welding on the joint of the pump housing and the copper pipe. When the clamps move, a welding tool is driven to move together, thereby improving the alignment efficiency and reducing the alignment complexity.

Description

Welding equipment for connecting cooling pumps to copper pipes Technical Field

[0001] This invention relates to the field of cooling pump and copper pipe welding technology, and particularly to a welding device for connecting a cooling pump and a copper pipe. Background Technology

[0002] When welding the coolant pump casing to the copper pipe, the center of the weld joint needs to be aligned with the center of the copper pipe. Then, an arc weld is performed at the connection point using welding equipment. During the welding process, the pump casing and copper pipe need to be clamped and fixed. Existing welding methods include two approaches: one where the welding equipment remains stationary, its welding end contacts the weld joint, and then the pump casing and copper pipe are rotated by driving the clamping device to perform an arc weld at the joint. However, considering the poor stability and resulting in inaccurate weld quality from rotating the pump casing and copper pipe, the second welding method is mostly chosen. The pump casing and copper pipe are aligned and fixed, and the welding equipment moves to perform the weld at the joint. Currently, most welding is done using robotic arms. However, robotic arms can only weld from above, not below. Therefore, the pump casing and copper pipe need to be readjusted, the lower arc connection point needs to be flipped upwards, and then the robotic arm performs a secondary weld. Because the clamping device cannot guarantee that the joint between the pump housing and the copper pipe remains in the same position during the clamping process, after the pump housing and the copper pipe are clamped and fixed, the welding point needs to be adjusted to the joint between the pump housing and the copper pipe by moving the welding equipment. Therefore, the position of the welding equipment needs to be adjusted according to the joint between the pump housing and the copper pipe during each welding process. Summary of the Invention

[0003] The purpose of this invention is to provide a welding device for connecting a cooling pump and a copper pipe. The device can move the welding tool together with the clamp while the clamp moves, thereby improving positioning efficiency and reducing positioning complexity. At the same time, when the third driving component drives the welding tool to rotate and adjust the tilt, it drives the pressure rod to rotate synchronously and symmetrically around the shaft. The pressure rod can thus withstand part of the pressure during the extrusion process, reducing damage to the welding tool. Therefore, when the pressure rod absorbs part of the pressure, it can prevent the welding end of the welding tool from deforming.

[0004] To achieve the above objectives, the present invention provides a welding device for connecting a cooling pump and a copper pipe, comprising a welding platform with two clamps on its surface, wherein one clamp can move closer to or further away from the other clamp along a first direction, the clamping ends of the two clamps move toward each other along a second direction for clamping, and the clamping center lines of the two clamps always coincide along the first direction, and the welding platform is provided with welding equipment that can move along the first direction.

[0005] The welding equipment includes an annular bracket whose axis coincides with the clamping center line of the two clamps. A drive adjustment mechanism is provided inside the annular bracket, and a welder is installed on the drive adjustment mechanism. The drive adjustment mechanism includes a first drive member that drives the welder to rotate around the axis of the annular bracket, a second drive member that drives the welder to move along a second direction, and a third drive member that is connected to the welder via a shaft. A pressure rod is provided on the third drive member. The third drive member can drive the welder and the pressure rod to rotate synchronously and symmetrically around the shaft. When the welder and the pressure rod are in an inclined state, the pressure end of the pressure rod is flush with the welding end of the welder in the vertical direction.

[0006] Furthermore, a circular track is provided inside the annular bracket, and the first driving component is disposed inside the circular track.

[0007] Furthermore, the first driving component includes a first motor fixed on an annular bracket and a fixed support connected to the second driving component. An annular plate is connected to the fixed support and is disposed within a circular track.

[0008] Furthermore, a toothed ring is provided on the annular plate, and a gear that meshes with the toothed ring is provided on the first motor.

[0009] Furthermore, the third driving component includes a C-shaped seat connected to the output end of the second driving component. A movable frame is slidably installed in the C-shaped groove of the C-shaped seat. Limiting grooves are provided on both the upper and lower end faces of the movable frame. An installation plate penetrating the limiting groove is installed on the inner wall of the C-shaped seat.

[0010] Furthermore, a second motor is installed on the mounting plate, the output rod of the second motor is connected to one end of the pressing rod, and the upper and lower inner walls of the moving frame are provided with linkage racks, and the other end of the C-shaped seat is equipped with a linkage rod that is hinged to the welder.

[0011] Furthermore, a gear that meshes with one of the linkage racks is sleeved on the linkage rod, and a gear that meshes with the other linkage rack is sleeved on the output rod of the second motor.

[0012] Furthermore, the outer wall of the annular bracket is provided with a movable plate, a guide support plate is provided between the two clamps, and a guide rod penetrating the movable plate is provided inside the guide support plate.

[0013] Furthermore, a compression spring is sleeved on the guide rod, one end of the compression spring is connected to a compression plate sleeved on the guide rod, and the compression plate is connected to a clamp that can move along the first direction.

[0014] Furthermore, the welding device is also equipped with a wire feeding assembly, wherein the end point of the welding wire at the wire outlet end of the wire feeding assembly coincides with the welding point of the welding head.

[0015] The technical effects and advantages of this invention are as follows:

[0016] The two clamps have their center lines aligned, enabling the alignment of the copper pipe and the cooling pump housing. The welder rotates around the annular support, eliminating the need for secondary adjustments to the pump housing and copper pipe. When the welding end of the welder is adjusted to contact the welding point, the first drive component drives the welder to rotate around the annular support, performing annular welding on the connection between the pump housing and the copper pipe. The movement of the clamps simultaneously moves the welding tool, improving alignment efficiency and reducing the complexity of the process. When the third drive component rotates the welder to adjust its tilt, it also causes the pressure rod to rotate synchronously and symmetrically around its axis. This ensures that when the welder is tilted, the welding end is always vertically aligned with the pressure end of the pressure rod. The pressure rod thus withstands some of the pressure during the compression process, reducing damage to the welder, and its absorption of pressure prevents deformation of the welding end. Attached Figure Description

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 is a structural schematic diagram of the welding equipment of the present invention;

[0019] Figure 3 is an enlarged view of section A in Figure 2 of this invention;

[0020] Figure 4 is a half-sectional view of the guide plate of the present invention;

[0021] Figure 5 is a partial structural schematic diagram of the welding equipment of the present invention;

[0022] Figure 6 is an enlarged view of point B in Figure 5 of this invention;

[0023] Figure 7 is a half-sectional view of the wire feeding assembly of the present invention;

[0024] Figure 8 is a cross-sectional side view of the wire feeding assembly of the present invention;

[0025] Figure 9 is a schematic diagram of the reciprocating drive device of the present invention.

[0026] In the diagram: 1. Welding platform; 11. Guide support plate; 111. Guide rod; 112. Extrusion plate; 2. Welding equipment; 21. Annular bracket; 211. Circular track; 212. Moving plate; 22. Drive adjustment mechanism; 221. First drive component; 2211. First motor; 2212. Fixed support; 2213. Annular plate; 222. Second drive component; 223. Third drive component; 2231. C-shaped seat; 2232. Moving frame; 2233. Mounting plate; 2234. Linkage rod; 23. Welder; 24. Pressing rod; 4. Wire feeding assembly; 41. Front clamp; 411 4111 First tapered tube; 412 First ball bearing; 413 First pressure plate; 414 Fixed plate; 4131 First compression spring; 42 Rear clamping member; 421 Sleeve; 4211 Rack; 422 Second tapered tube; 4221 Second ball bearing; 423 Second pressure plate; 43 Reciprocating drive device; 431 Adjusting motor; 432 Drive gear; 433 Fixed bracket; 434 Adjusting plate; 4341 Inclined clamping block; 44 Wire feeding tube. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1: Referring to Figures 1-3, a welding device for connecting a cooling pump and a copper pipe is provided, including a welding platform 1 with two clamps on its surface. One clamp can move closer to or further away from the other clamp along a first direction. The clamping ends of the two clamps move towards each other along a second direction to clamp the copper pipe, and the clamping center lines of the two clamps always coincide along the first direction. The clamp that can move along the first direction is used to clamp the copper pipe, and the other clamp is used to clamp the cooling pump housing. When the clamp holding the copper pipe moves, it drives the copper pipe to move together. Since the clamping center lines of the two clamps coincide, the copper pipe and the cooling pump housing can be aligned.

[0029] A welding device 2 capable of moving along a first direction is provided on the welding table 1. The welding device 2 includes an annular support 21 whose axis coincides with the clamping center line of the two clamps. A drive adjustment mechanism 22 is provided inside the annular support 21, and a welder 23 is mounted on the drive adjustment mechanism 22. The drive adjustment mechanism 22 includes a first drive member 221 that drives the welder 23 to rotate around the axis of the annular support 21, a second drive member 222 that drives the welder 23 to move along a second direction, and a third drive member 223 connected to the drive welder 23 via a shaft. By rotating the welder 23 around the annular support 21, there is no need for secondary adjustment of the pump housing and copper pipe. When the welding end of the welder 23 is adjusted to contact the welding point, the first drive member 221 drives the welder 23 to rotate around the annular support 21, performing annular welding on the connection between the pump housing and the copper pipe.

[0030] A circular track 211 is provided inside the annular bracket 21, and a first driving member 221 is disposed inside the circular track 211. The first driving member 221 includes a first motor 2211 fixed on the annular bracket 21, a fixed support 2212 connected to the second driving member 222, an annular plate 2213 connected to the fixed support 2212, the annular plate 2213 disposed inside the circular track 211, and a gear ring disposed on the annular plate 2213. A gear meshing with the gear ring is disposed on the first motor 2211. The annular plate 2213 rotates inside the circular track 211, thereby driving the welder 23 to rotate around the axis of the annular bracket 21.

[0031] A movable plate 212 is provided on the outer wall of the annular support 21. A guide plate 11 is provided between the two clamps. A guide rod 111 is provided inside the guide plate 11, passing through the movable plate 212. A compression spring is sleeved on the guide rod 111. One end of the compression spring is connected to the compression plate 112 sleeved on the guide rod 111. The compression plate 112 is connected to a clamp that can move in a first direction. When the clamp holding the copper tube moves, it drives the compression plate 112 to move on the guide rod 111. The compression plate 112 pushes the compression spring and drives the movable plate 212 to move on the guide rod 111. When the welding end of the welder 23 contacts the cooling pump housing, the clamp continues to move, thereby compressing the compression spring. When the copper tube is aligned with the cooling pump housing, the clamp stops moving. Because the compression spring compresses the welding equipment 2, the welding end of the welder 23 is always stably aligned with the welding point, ensuring the accuracy of the welding positioning. Furthermore, through the aforementioned connection structure, the welding fixture can be moved along with the fixture as it moves, thereby improving positioning efficiency and reducing the complexity of positioning.

[0032] Example 2: Referring to Figures 5-6, this example differs from the first example. During the implementation of Example 1, it was found that each time the welder 23 was squeezed and aligned with the pump housing, it had to withstand all the pressure, which caused damage to the welder 23.

[0033] To solve the above problems, this embodiment provides a rotatable pressure rod 24. When the third driving member 223 drives the welder 23 to rotate to adjust the tilt, it drives the pressure rod 24 to rotate synchronously and symmetrically around the shaft. Since the pressure rod 24 and the welder 23 rotate and adjust synchronously, the welding end of the welder 23 is always flush with the pressure end of the pressure rod 24 in the vertical direction when the welder 23 is tilted. The pressure rod 24 can withstand part of the pressure during the extrusion process, reducing damage to the welder 23. When the pressure rod 24 absorbs part of the pressure, it can prevent the welding end of the welder 23 from deforming.

[0034] The third driving component 223 is equipped with a pressing rod 24. The third driving component 223 can drive the welder 23 and the pressing rod 24 to rotate synchronously and symmetrically around the axis. When the welder 23 and the pressing rod 24 rotate to the tilted state, the pressing end of the pressing rod 24 is flush with the welding end of the welder 23 in the vertical direction. The third driving component 223 includes a C-shaped seat 2231 connected to the output end of the second driving component 222. A movable frame 2232 is slidably installed in the C-shaped groove of the C-shaped seat 2231. Limiting grooves are opened on both the upper and lower end faces of the movable frame 2232. A mounting plate 2233 penetrating the limiting groove is installed on the inner wall of the C-shaped seat 2231. A second motor is installed on the mounting plate 2233, and the output rod of the second motor is connected to one end of the pressing rod 24. The upper and lower inner walls of the movable frame 2232 are equipped with linkage racks. A linkage rod 2234, hinged to the welder 23, is mounted on the other end of the C-shaped seat 2231. A gear meshing with one of the linkage racks is sleeved on the linkage rod 2234. The second motor rotates counterclockwise, driving the pressure rod 24 to rotate. A gear meshing with another linkage rack is sleeved on the output rod of the second motor. The output end of the second motor, through the engagement of the gear and the linkage rack, drives the movable frame 2232 to move within the C-shaped seat 2231. When the movable frame 2232 moves, the other linkage rack drives the linkage rod 2234 to rotate clockwise via the gear, enabling the welder 23 to adjust its tilt angle while simultaneously driving the pressure rod 24 to adjust synchronously, improving the ease of operation.

[0035] Example 3: Referring to Figures 7-9, this example differs from Example 1 in that the welding device 23 is further equipped with a wire feeding assembly 4, the wire outlet end of the wire feeding assembly 4 coinciding with the welding point of the welding head. The wire feeding assembly 4 includes: a front clamping member 41 and a rear clamping member 42, which are used to clamp the welding wire respectively; a reciprocating drive device 43, used to drive the rear clamping member 42 to reciprocate along the wire feeding direction; and a wire feeding tube 44 for mounting the front clamping member 41, the rear clamping member 42, and the reciprocating drive device 43. When the reciprocating drive device 43 drives the rear clamping member 42 to move along the wire feeding direction, the rear clamping member 42 is in a clamped state, and the front clamping member 41 is in a relaxed state. The rear clamping member 42 moves the welding wire to feed the wire. When the reciprocating drive device 43 drives the rear clamping member to move in the opposite direction along the wire feeding direction, the rear clamping member 42 is in a relaxed state, and the front clamping member 41 is in a clamped state.

[0036] The front clamping member 41 includes a first tapered tube 411 disposed at the wire inlet of the wire feeding tube 44, the wire inlet of the wire feeding tube 44 being opposite to and tapered in shape with the first tapered tube 411. Three circular grooves penetrating the tube wall are formed on the outer surface of the first tapered tube 411, and each circular groove contains a first ball bearing 4111 for clamping the welding wire. The first ball bearing 4111 fits against the tapered inner wall of the wire inlet of the wire feeding tube 44. The front clamping member also includes a first pressure plate 412 connected to the first tapered tube 411 and a fixing plate 413 coaxially mounted inside the wire feeding tube 44. A first compression spring 4131 is disposed between the fixing plate 413 and the first pressure plate 412. The rear clamping member 42 includes a sleeve 421 coaxially disposed inside the wire feeding tube 44, the end of the sleeve 421 facing the wire inlet of the wire feeding tube 44 having the same tapered hole. The rear clamping component also includes a second tapered tube 422 coaxially inserted into a tapered hole. The outer surface of the second tapered tube 422 has three circular grooves penetrating the tube wall, and each circular groove contains a second ball bearing 4221 for clamping the welding wire. The rear clamping component also includes a second pressure plate 423 connected to one end of the second tapered tube 422. The sleeve 421 has an inner groove for moving the second pressure plate 423 along the wall. One end of the second pressure plate 423 is connected to a plate inside the inner groove via a second compression spring. The sleeve 421 and the wire feeding tube 44 are connected via a reciprocating drive device 43. During wire feeding, the three second ball bearings 4221 clamp the welding wire. When the sleeve 421 moves, it cooperates with the three first ball bearings 4111 to clamp and pull the welding wire, improving the overall flatness of the welding wire after it exits the tube. This allows for secondary adjustment of the welding wire, ensuring stable contact with the welding head and preventing misalignment between the welding wire and the welding head due to bending. By clamping and feeding the wire with the front clamp 41 and the rear clamp 42, the problem of the welding wire bending caused by the movement of the wire guide hose 313 is solved, and the stability of the fed welding wire can be ensured.

[0037] The reciprocating drive device 43 includes an adjusting motor 431, a drive gear 432, a fixed bracket 433, and an adjusting plate 434. The adjusting motor 431 is fixed inside a limiting rod a on one side of the wire feeding tube 44. The output end of the adjusting motor 431 passes through the wire feeding tube 44 and connects to the drive gear 432 located inside the wire feeding tube 44. A horizontal plate is provided on the outer wall of the sleeve 421, and a rack 4211 that meshes with the drive gear 432 is provided on the horizontal plate. The fixed bracket 433 is fixed to the inner wall of the wire feeding tube 44 and is hinged to one end of the adjusting plate 434. An inclined block 4341 is provided on the adjusting plate 434, and a bent plate that movably engages with the inclined block 4341 is provided on the support plate at one end of the second pressing plate 423. The other end of the adjusting plate 434 is an inclined surface, and a top plate corresponding to the inclined surface is provided at one end of the sleeve 421. The upper end of the top plate is provided with an inclined surface that engages with the inclined surface of the adjusting plate 434. A slot is provided on one side of the sleeve 421 for the adjustment plate 434 to pass through. By engaging and limiting the angled locking block 4341 on the adjustment plate 434 with the bent plate, the second tapered tube 422 remains stationary when the sleeve 421 moves back. This increases the gap between the tapered hole and the second tapered tube 422, preventing the tapered hole from squeezing the second ball bearing 4221, causing the second ball bearing 4221 to loosen and not clamp the welding wire, thus facilitating the reset of the sleeve 421. The top plate pushes the adjustment plate 434 upwards, releasing the locking state. The second tapered tube 422 resets under the action of the spring, facilitating the next wire feeding and improving wire feeding efficiency. This also prevents the second ball bearing 4221 from squeezing the welding wire during reset, causing the welding wire to retract and deform.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A welding apparatus for connecting a cooling pump and a copper pipe, comprising a welding platform (1) with two clamps disposed on its surface, wherein one clamp is capable of moving closer to or further away from the other clamp along a first direction, characterized in that, The welding table (1) is provided with a welding device (2) that can move along a first direction; The welding equipment (2) includes an annular support (21) whose axis coincides with the clamping center line of the two clamps. A drive adjustment mechanism (22) is provided inside the annular support (21). A welder (23) is installed on the drive adjustment mechanism (22). The drive adjustment mechanism (22) includes a first drive member (221) that drives the welder (23) to rotate around the axis of the annular support (21) and a second drive member (222) that drives the welder (23) to move in a second direction. During the movement of the welder (23) in the first direction, it first contacts the welding end of the cooling pump. While the two clamps drive the cooling pump to connect with the copper pipe, the welding end of the welder (23) is aligned with the welding point.

2. The welding equipment for connecting a cooling pump and a copper pipe according to claim 1, characterized in that, The annular support (21) is provided with a circular track (211), and the first driving member (221) is provided in the circular track (211).

3. The welding equipment for connecting a cooling pump and a copper pipe according to claim 2, characterized in that, The first driving member (221) includes a first motor (2211) fixed on an annular bracket (21) and a fixed support (2212) connected to the second driving member (222). An annular plate (2213) is connected to the fixed support (2212). The annular plate (2213) is set inside the circular track (211). A toothed ring is provided on the annular plate (2213). A gear that meshes with the toothed ring is provided on the first motor (2211).

4. The welding equipment for connecting a cooling pump and a copper pipe according to claim 3, characterized in that, The welding equipment (2) further includes a third driving component (223) connected to the drive welder (23) via a shaft. The third driving component (223) is provided with a pressing rod (24). The third driving component (223) is used to drive the welder (23) and the pressing rod (24) to rotate synchronously and symmetrically around the shaft. When the welder (23) and the pressing rod (24) are in an inclined state, the pressing end of the pressing rod (24) is flush with the welding end of the welder (23) in the vertical direction.

5. The welding equipment for connecting a cooling pump and a copper pipe according to claim 4, characterized in that, The third driving component (223) includes a C-shaped seat (2231) connected to the output end of the second driving component (222). A movable frame (2232) is slidably installed in the C-shaped groove of the C-shaped seat (2231). Limiting grooves are provided on both the upper and lower end faces of the movable frame (2232). An installation plate (2233) penetrating the limiting groove is installed on the inner wall of the C-shaped seat (2231).

6. The welding equipment for connecting a cooling pump and a copper pipe according to claim 5, characterized in that, The mounting plate (2233) is equipped with a second motor. The output rod of the second motor is connected to one end of the pressing rod (24). The upper and lower inner walls of the moving frame (2232) are equipped with linkage racks. The other end of the C-shaped seat (2231) is equipped with a linkage rod (2234) that is hinged to the welder (23).

7. The welding equipment for connecting a cooling pump and a copper pipe according to claim 6, characterized in that, The linkage rod (2234) is fitted with a gear that meshes with one of the linkage racks, and the output rod of the second motor is fitted with a gear that meshes with the other linkage rack.

8. The welding equipment for connecting a cooling pump and a copper pipe according to claim 7, characterized in that, The outer wall of the annular bracket (21) is provided with a movable plate (212), and a guide support plate (11) is provided between the two clamps. A guide rod (111) that penetrates the movable plate (212) is provided inside the guide support plate (11).

9. The welding equipment for connecting a cooling pump and a copper pipe according to claim 8, characterized in that, A compression spring is sleeved on the guide rod (111), and one end of the compression spring is connected to a compression plate (112) sleeved on the guide rod (111). The compression plate (112) is connected to a clamp that can move along a first direction.

10. The welding equipment for connecting a cooling pump and a copper pipe according to claim 9, characterized in that, The welding device (23) is also provided with a wire feeding assembly (4), and the end point of the welding wire at the wire feeding assembly (4) coincides with the welding point of the welding head.

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