A welding device for connecting a cooling pump and a copper pipe

Abstract

This invention discloses a welding device for connecting a cooling pump and a copper pipe, relating to the technical field of welding cooling pumps and copper pipes. It includes a welding platform with two clamps on its surface, one of which can move closer to or further away from the other clamp along a first direction. The clamping ends of both clamps move towards each other along a second direction, and the clamping center lines of the two clamps always coincide along the first direction. The welding platform is equipped with a welding device that can move along the first direction. By rotating the welding device around a ring-shaped support, secondary adjustments to the pump housing and copper pipe are unnecessary. When the welding end of the welding device is adjusted to contact the welding point, a first driving member drives the welding device to rotate around the ring-shaped support, performing ring welding on the connection between the pump housing and the copper pipe. Simultaneously with the movement and alignment of the clamps, the welding device can also move and align, improving alignment efficiency and reducing the complexity of alignment.

Description

Technical Field

[0001] The invention relates to the technical field of cooling pump and copper pipe welding, in particular to welding equipment for connecting a cooling pump and a copper pipe. Background Art

[0002] When welding the cooling pump casing and the copper tube, the center of the welding opening needs to be aligned with the center of the copper tube, and arc welding is performed on the connection between the pump casing and the copper tube by welding equipment. During the welding process, the pump casing and the copper tube need to be clamped and fixed. The existing welding is divided into two methods. One is that the welding equipment is stationary, and after its welding end contacts the welding point, the pump casing and the copper tube connected by the clamping are driven to rotate, so as to perform arc welding on the joint between the pump casing and the copper tube. However, considering the problem of poor welding quality caused by poor stability of rotation welding between the pump casing and the copper tube, most people choose the second welding method. After the pump casing and the copper tube are clamped and aligned, they are fixed, and the connection between the pump casing and the copper tube is welded by moving the welding equipment. Most of the existing ones are welded by a manipulator, but the manipulator can only weld on the upper arc surface, and the arc connection below cannot be welded. The pump casing and the copper tube need to be readjusted to make the lower welding point flip upward, and then the manipulator performs a second welding. Since the clamping part cannot ensure that the pump casing and the copper tube alignment point always remain in the same position during the clamping process, after the pump casing and the copper tube are clamped and aligned, the welding equipment needs to be moved to adjust the welding point to the connection between the pump casing and the copper tube. During each welding process, the welding equipment position needs to be adjusted according to the connection position of the pump casing and the copper tube. Summary of the invention

[0003] The purpose of the present invention is to provide a welding device for connecting a cooling pump and a copper pipe, which has the advantage that when the clamp moves and aligns, the welding tool can be driven to move and align together, thereby improving the alignment efficiency and reducing the complexity of the alignment. When the third driving member drives the welder to rotate and adjust the inclination, it drives the pressure rod to rotate synchronously and symmetrically around the shaft rod. The pressure rod can withstand part of the pressure during the extrusion process, thereby reducing damage to the welder. When the pressure rod absorbs part of the pressure, deformation of the welding end of the welder is prevented.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a welding device for connecting a cooling pump and a copper pipe, comprising a welding table with two clamps arranged on the plate surface, wherein one of the clamps can approach or move away from the other clamp along a first direction, the clamping ends of the two clamps are moved 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 table is provided with a welding device that can move along the first direction;

[0005] The welding equipment includes an annular bracket whose axis coincides with the clamping center lines of the two clamps, a driving adjustment mechanism is arranged inside the annular bracket, a welder is installed on the driving adjustment mechanism, the driving adjustment mechanism includes a first driving member for driving the welder to rotate around the axis of the annular bracket, a second driving member for driving the welder to move along a second direction, and a third driving member connected to the welder through an axle, a pressure rod is arranged on the third driving member, the third driving member can drive the welder and the pressure rod to rotate synchronously and symmetrically around the axle, and when the welder and the pressure rod are rotated to 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 arranged in the annular bracket, and the first driving member is arranged in the circular track.

[0007] Furthermore, the first driving member includes a first motor fixed on the annular bracket, a fixed support connected to the second driving member, an annular plate is connected to the fixed support, and the annular plate is arranged in the circular track.

[0008] Furthermore, an annular gear ring is arranged on the annular plate, and a gear meshing with the annular gear ring is arranged on the first motor.

[0009] Furthermore, the third driving member includes a C-shaped seat connected to the output end of the second driving member, a movable frame is slidably installed in the C-shaped groove of the C-shaped seat, and limiting grooves are provided on the upper and lower end surfaces of the movable frame. A mounting plate that passes through 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, an output rod of the second motor is connected to one end of the pressure rod, linkage racks are provided on the upper and lower inner walls of the movable frame, and a linkage rod hinged to the welder is installed at the other end of the C-shaped seat.

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

[0012] Furthermore, a movable plate is arranged on the outer wall of the annular bracket, a guide support plate is arranged between the two clamps, and a guide rod penetrating the movable plate is arranged in 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 welder is also provided with a wire feeding assembly, and 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] Technical effects and advantages of the present invention:

[0016] The clamping center lines of the two clamps coincide, so the copper tube and the cooling pump casing can be connected in an aligned manner. The welder can be rotated around the annular bracket without the need for secondary adjustment of the pump casing and the copper tube. When the welding end of the welder is adjusted to contact the welding point, the first driving member drives the welder to rotate around the annular bracket to perform annular welding on the connection between the pump casing and the copper tube. While the clamp is moving for alignment, the welding tool can be driven to move for alignment together, thereby improving the alignment efficiency and reducing the complexity of alignment. When the third driving member drives the welder to rotate and adjust the inclination, it drives the pressure rod to rotate synchronously and symmetrically around the shaft rod. Since the pressure rod and the welder rotate synchronously and adjusted, the welding end of the welder is always flush with the pressure end of the pressure rod in the vertical direction when the welder is tilted. The pressure rod can withstand part of the pressure during the extrusion process, thereby reducing damage to the welder. When the pressure rod absorbs part of the pressure, deformation of the welding end of the welder is prevented. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0019] Figure 3 For the present invention Figure 2 A magnified image of point A;

[0020] Figure 4 A half-section view of the guide support plate structure of the present invention;

[0021] Figure 5 It is a schematic diagram of the local structure of the welding equipment of the present invention;

[0022] Figure 6 For the present invention Figure 5 The enlarged view of point B;

[0023] Figure 7 A half-section view of the wire feeding assembly structure of the present invention;

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

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

[0026] In the figure:

[0027] 1. welding table; 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 driving member; 2211. first motor; 2212. fixed support; 2213. annular plate; 222. second driving member; 223. third driving member; 2231. C-shaped seat; 2232. moving frame; 2233. mounting plate; 2234. linkage rod; 23. welding device; 24. pressing rod; 4. Wire feeding assembly; 41. Front clamping member; 411. First conical tube; 4111. First ball bearing; 412. First pressure plate; 413. Fixed plate; 4131. First extrusion spring; 42. Rear clamping member; 421. Moving sleeve; 4211. Rack; 422. Second conical tube; 4221. Second ball bearing; 423. Second pressure plate; 43. Reciprocating drive device; 431. Adjustment motor; 432. Driving gear; 433. Fixed bracket; 434. Adjustment plate; 4341. Oblique clamping block; 44. Wire feeding tube. DETAILED DESCRIPTION

[0028] 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.

[0029] Example 1: Reference Figure 1 - Figure 3 , which is the first embodiment of the present invention, provides a welding device for connecting a cooling pump and a copper pipe, including a welding table 1 with two clamps arranged on the plate surface, and one of the clamps can approach or move away from the other clamp along a first direction, and the clamping ends of the two clamps are moved toward each other along a second direction for clamping, 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 casing, when the clamp clamping the copper pipe moves, it drives the copper pipe to move together, and since the clamping center lines of the two clamps coincide, the copper pipe and the cooling pump casing can be connected in an aligned manner.

[0030] A welding device 2 capable of moving in a first direction is arranged on the welding table 1, and the welding device 2 includes an annular bracket 21 whose axis coincides with the clamping center lines of the two clamps, and a driving adjustment mechanism 22 is arranged in the annular bracket 21, and a welder 23 is installed on the driving adjustment mechanism 22, and the driving adjustment mechanism 22 includes a first driving member 221 for driving the welder 23 to rotate around the axis of the annular bracket 21, and also includes a second driving member 222 for driving the welder 23 to move in a second direction, and a third driving member 223 connected to the driving welder 23 through an axle rod. By rotating the welder 23 around the annular bracket 21, there is no need to perform secondary adjustment on the pump casing and the copper pipe. When the welding end of the welder 23 is adjusted to contact with the welding point, the first driving member 221 drives the welder 23 to rotate around the annular bracket 21 to perform annular welding on the connection between the pump casing and the copper pipe.

[0031] A circular track 211 is arranged in the annular bracket 21, and a first driving member 221 is arranged in the circular track 211. The first driving member 221 includes a first motor 2211 fixed on the 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 arranged in the circular track 211, and an annular gear ring is arranged on the annular plate 2213. A gear meshing with the annular gear ring is arranged on the first motor 2211. The annular plate 2213 rotates in the circular track 211, thereby driving the welder 23 to rotate around the axis of the annular bracket 21.

[0032] A movable plate 212 is arranged on the outer wall of the annular bracket 21, and a guide support plate 11 is arranged between the two clamps. A guide rod 111 penetrating the movable plate 212 is arranged in the guide support plate 11, and an extrusion spring is sleeved on the guide rod 111, and one end of the extrusion spring is connected to an extrusion plate 112 sleeved on the guide rod 111, and the extrusion plate 112 is connected to the clamp that can move along the first direction. When the clamp holding the copper tube moves, the extrusion plate 112 is driven to move on the guide rod 111, and the extrusion plate 112 pushes the extrusion spring and brings The movable plate 212 moves on the guide rod 111. When the welding end of the welder 23 contacts the cooling pump shell, the clamp continues to move, thereby compressing the extrusion spring. When the copper tube and the cooling pump shell are aligned at the welding point, the clamp stops moving. Since the extrusion spring is compressed and squeezes 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 alignment. Through the above-mentioned connection structure, the welding tool can be driven to move and align together while the clamp moves and aligns, thereby improving the alignment efficiency and reducing the complexity of the alignment.

[0033] Example 2: Reference Figure 4 - Figure 6, which is the second embodiment of the present invention. This embodiment is different from the first embodiment. During the implementation of the first embodiment, it was found that each time the welder 23 was squeezed and aligned with the pump housing, it needed to withstand all the pressure, resulting in damage to the welder 23.

[0034] In order to solve the above problem, the present embodiment provides a rotatable pressure rod 24. When the third driving member 223 drives the welder 23 to rotate and adjust the inclination, it drives the pressure rod 24 to rotate synchronously and symmetrically around the axis rod. 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 and reduce damage to the welder 23. When the pressure rod 24 absorbs part of the pressure, deformation of the welding end of the welder 23 is prevented.

[0035] The third driving member 223 is provided with a pressure rod 24, and the third driving member 223 can drive the welder 23 and the pressure rod 24 to rotate synchronously and symmetrically around the shaft rod, and when the welder 23 and the pressure rod 24 are in a rotating and tilted state, the pressure end of the pressure rod 24 is flush with the welding end of the welder 23 in the vertical direction, and the third driving member 223 includes a C-shaped seat 2231 connected to the output end of the second driving member 222, and a moving frame 2232 is slidably installed in the C-shaped groove of the C-shaped seat 2231, and limiting grooves are provided on the upper and lower end surfaces of the moving frame 2232, and a mounting plate 2233 that passes through the limiting groove is installed on the inner wall of the C-shaped seat 2231, and 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 pressure rod 24 Then, the upper and lower inner walls of the moving frame 2232 are provided with linkage racks, and the other end of the C-shaped seat 2231 is equipped with a linkage rod 2234 hinged to the welder 23, and a gear meshing with one of the linkage racks is sleeved on the linkage rod 2234. The second motor rotates counterclockwise to drive the pressure rod 24 to rotate, and a gear meshing with another linkage rack is sleeved on the output rod of the second motor. The output end of the second motor drives the moving frame 2232 to move in the C-shaped seat 2231 through the gear and the linkage rack. When the moving frame 2232 moves, the other linkage rack drives the linkage rod 2234 to rotate clockwise through the gear, so that the welder 23 can adjust the inclination angle while synchronously driving the pressure rod 24 to adjust synchronously, thereby improving the driving convenience.

[0036] Example 3: Reference Figure 7 - Fig. 9, which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that a wire feeding assembly 4 is also provided on the welder 23. The end point of the welding wire at the wire outlet end of the wire feeding assembly 4 coincides 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. The front clamping member 41 and the rear clamping member 42 are respectively used to clamp the welding wire. The reciprocating drive device 43 is used to drive the rear clamping member 42 to reciprocate along the wire feeding direction, and a wire feeding tube 44 installed on 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 in 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 drives the welding wire to move for wire feeding. When the reciprocating drive device 43 drives 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.

[0037] The front clamping member 41 includes a first tapered tube 411 arranged at the wire inlet of the wire feeding tube 44, the wire inlet of the wire feeding tube 44 is aligned with the first tapered tube 411 and is tapered, the outer surface of the first tapered tube 411 is provided with three circular grooves penetrating the tube wall, and each circular groove is provided with a first ball 4111 for clamping the welding wire, the first ball 4111 is fitted with the tapered inner wall of the wire inlet of the wire feeding tube 44, a first pressing plate 412 connected to the first tapered tube 411, and A fixed plate 413 is coaxially mounted inside the wire feeding tube 44, a first extrusion spring 4131 is arranged between the fixed plate 413 and the first pressing plate 412, the rear clamping member 42 comprises a movable sleeve 421 coaxially arranged inside the wire feeding tube 44, the movable sleeve 421 has a conical hole identical to the wire feeding tube 44 at one end thereof facing the wire inlet, a second conical tube 422 coaxially inserted in the conical hole, and the outer surface of the second conical tube 422 has three circular holes penetrating through the tube wall. shaped grooves, and each circular groove is provided with a second ball bearing 4221 for clamping the welding wire, and a second pressing plate 423 connected to one end of the second conical tube 422, an inner groove for the second pressing plate 423 to move against the wall is provided in the movable sleeve 421, one end of the second pressing plate 423 is connected to the inner plate body of the inner groove through a second extrusion spring, the movable sleeve 421 and the wire feeding tube 44 are connected by a reciprocating drive device 43, and the three second ball bearings 4221 are butt-welded when feeding the wire. The wire is clamped, and when the movable sleeve 421 moves, it cooperates with the three first balls 4111 to clamp and pull the welding wire, thereby improving the overall flatness of the welding wire after it is output, and performing a secondary adjustment on the welding wire so that the welding wire can stably contact with the welding head to avoid bending of the welding wire and misalignment of the welding wire and the welding head. The front clamping piece 41 and the rear clamping piece 42 are used to clamp and feed the wire, thereby solving the problem of bending of the welding wire caused by the movement of the wire guide hose 313 and ensuring the stability of the fed welding wire.

[0038] The reciprocating drive device 43 includes an adjusting motor 431, a driving gear 432, a fixed bracket 433 and an adjusting plate 434. The adjusting motor 431 is fixed in a limiting rod a on one side of the wire feeding tube 44. The output end of the adjusting motor 431 penetrates the wire feeding tube 44 and is connected with the driving gear 432 arranged in the wire feeding tube 44. A transverse plate is extended from the outer wall of the movable sleeve 421, and a rack 4211 meshing with the driving gear 432 is arranged on the transverse plate. The fixed bracket 433 is fixed to the inner wall of the wire feeding tube 44. The fixed bracket 433 is hinged to one end of the adjusting plate 434. An oblique clamping block 4341 is arranged on the adjusting plate 434. A bent plate movably clamped with the oblique clamping block 4341 is arranged on the support plate extending from one end of the second pressing plate 423. The other end of the adjusting plate 434 is an inclined surface, and the movable sleeve 421 is provided with a plurality of movable brackets. The second conical tube 422 is reset under the action of the spring, so that the wire can be clamped and fed next time, thereby improving the wire feeding efficiency and avoiding the second conical tube 4221 from squeezing the wire during resetting.

[0039] Finally, it should be noted that the above 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 aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A welding device for connecting a cooling pump and a copper pipe, comprising a welding table (1) with two clamps arranged on the plate surface, wherein one clamp can move closer to or farther from the other clamp along a first direction, and characterized in that a welding device (2) capable of moving along the first direction is arranged on the welding table (1); The welding device (2) comprises an annular bracket (21) whose axis coincides with the clamping center lines of the two clamps, a driving adjustment mechanism (22) is arranged in the annular bracket (21), a welder (23) is mounted on the driving adjustment mechanism (22), the driving adjustment mechanism (22) comprises a first driving member (221) for driving the welder (23) to rotate around the axis of the annular bracket (21), and a second driving member (222) for driving the welder (23) to move along a second direction, the welder (23) first contacts the welding end of the cooling pump during the movement along the first direction, and the two clamps drive the cooling pump to align with the copper pipe while the welding end of the welder (23) is aligned with the welding point; A movable plate (212) is disposed on the outer wall of the annular bracket (21), a guide support plate (11) is disposed between the two clamps, and a guide rod (111) is disposed inside the guide support plate (11) and passes through the movable plate (212); The guide rod (111) is sleeved with a compression spring, one end of the compression spring is connected to a compression plate (112) sleeved on the guide rod (111), and the compression plate (112) is connected to a clamp capable of moving along a first direction; The welding device (2) further comprises a third driving member (223) connected to the welding device (23), the third driving member (223) being provided with a pressing rod (24), the third driving member (223) comprising a C-shaped seat (2231) connected to the output end of the second driving member (222), a moving frame (2232) being slidably mounted in a C-shaped groove of the C-shaped seat (2231), limiting grooves being provided on the upper and lower end surfaces of the moving frame (2232), and a through-hole being mounted on the inner wall of the C-shaped seat (2231). A mounting plate (2233) passing through the limit groove, a second motor is mounted on the mounting plate (2233), an output rod of the second motor is connected to one end of the pressing rod (24), linkage racks are arranged on the upper and lower inner walls of the movable frame (2232), 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), and a gear meshing with the other linkage rack is sleeved on the output rod of the second motor; The second motor rotates counterclockwise to drive the pressing rod (24) to rotate, and the gear and the linkage rack cooperate to drive the moving frame (2232) to move in the C-shaped seat (2231), thereby driving the linkage rod (2234) to rotate clockwise, so that the welder (23) and the pressing rod (24) rotate synchronously and symmetrically, and when the welder (23) and the pressing rod (24) are in a rotationally inclined state, the pressing end of the pressing rod (24) is flush with the welding end of the welder (23) in the vertical direction.

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

3. A welding device for connecting a cooling pump and a copper pipe according to claim 2, characterized in that: The first driving member (221) comprises 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) being arranged in the circular track (211), an annular gear ring being arranged on the annular plate (2213), and a gear meshing with the annular gear ring being arranged on the first motor (2211).

4. A welding device for connecting a cooling pump and a copper pipe according to claim 3, characterized in that: The welder (23) is also provided with a wire feeding assembly (4), and the end point of the welding wire at the wire outlet end of the wire feeding assembly (4) coincides with the welding point of the welding head.

Images