CN114453721B

CN114453721B - Pressure welding fixture and pressure welding equipment

Info

Publication number: CN114453721B
Application number: CN202210245835.8A
Authority: CN
Inventors: 米云; 陶凯; 杨亚涛
Original assignee: Shenzhen Dade Laser Technology Co ltd
Current assignee: Shenzhen Dade Laser Technology Co ltd
Priority date: 2022-03-14
Filing date: 2022-03-14
Publication date: 2024-05-10
Anticipated expiration: 2042-03-14
Also published as: CN114453721A

Abstract

The application relates to a pressure welding fixture and pressure welding equipment, and relates to the technical field of welding, wherein the pressure welding fixture comprises: a base having at least one through hole; the pressurizing piece is connected with the base and is used for pressurizing the welding area of the workpiece; the pressing piece comprises a mounting part and a pressing part, the mounting part is used for connecting the pressing part and the base, a welding channel is formed between the end part of the pressing part and the inner wall of the through hole and penetrates through the through hole, and the welding channel is used for directly heating the welding area of the workpiece by the heating energy of the welding head; the mounting part is rotationally connected with the pressing part; the driving assembly is connected with the base and the pressure applying piece and is used for driving the mounting part to rotate so that the projection position of the mounting part along the axis of the through hole moves; the pressure welding equipment comprises a welding machine and the pressure welding clamp. This application has the advantage of enabling the press welding operation in the circumferential direction to be continuously performed with improved efficiency.

Description

Pressure welding fixture and pressure welding equipment

Technical Field

The application relates to the technical field of pressure welding, in particular to a pressure welding clamp and pressure welding equipment.

Background

Welding is an important process in industrial production, wherein pressure welding is one of the ways of welding. Pressure welding is a short term for pressure welding, and is a welding method in which mechanical pressure is applied to a joint portion to thereby achieve welding.

As shown in fig. 1, a schematic structure of a workpiece product is shown, the workpiece product 1 includes a substrate 11 and bosses 12, the bosses 12 may be two and distributed at two ends of the substrate 11, a circular mounting groove 111 is provided on the substrate 11, and the bosses 12 are located in the mounting groove 111 and are fixed with the substrate 11 by means of pressure welding.

When the workpiece product 1 is manufactured by pressure welding, after the base plate 11 and the boss 12 are fixed in position, the boss 12 is pressed by the pressing piece, and the welding head of the welding machine moves around the periphery of the boss 12 to weld. Because the pressing piece is blocked, the welding head cannot directly weld near the pressing piece, and the residual tiny unwelded parts need subsequent repair welding, so that the production efficiency is affected.

Disclosure of Invention

In order to solve the problem that welding repair is needed due to the fact that a pressing piece affects continuous welding of a welding head in the process of pressure welding operation, the application provides a pressure welding fixture and pressure welding equipment.

In a first aspect, the present application provides a pressure welding fixture, which adopts the following technical scheme:

A press welding jig, comprising:

a base having at least one through hole;

the pressurizing piece is connected with the base and is used for pressurizing the welding area of the workpiece; the pressing piece comprises a mounting part and a pressing part, the mounting part is used for connecting the pressing part and the base, a welding channel is formed between the end part of the pressing part and the inner wall of the through hole and penetrates through the through hole, and the welding channel is used for directly heating the welding area of the workpiece by the heating energy of the welding head; the mounting part is rotationally connected with the pressing part;

The driving assembly is connected to the base and the pressure applying piece and is used for driving the installation part to rotate so that the projection position of the installation part along the axis of the through hole moves.

Through adopting above-mentioned technical scheme, during the welding, it is fixed with the base plate laminating base of work piece product for the welding area is located the through-hole below, makes the portion of exerting pressure press in the welding area position. And the welding heads of the welding machine carry out circumferential pressure welding on the welding area along the welding channel. When the welding head moves to a position close to the installation part, the installation part is driven to move in advance through the driving assembly, so that the welding head can continuously press-weld the welding point at the original installation part position, the circumferential press-welding operation is continuous and complete at one time, and the circumferential press-welding efficiency and quality are improved.

Optionally, the mounting portion rotates about an axis of the through hole.

By adopting the technical scheme, the welding head moves around the axis of the through hole to weld, so that the synchronization can be kept, and the influence of the mounting part on the welding head is reduced.

Optionally, the installation department includes fixed connection's collar and linking arm, the collar with the coaxial rotation setting of base, the linking arm keep away from the one end of collar with the coaxial rotation setting of pressure portion.

Through adopting above-mentioned technical scheme, the linking arm rotates with the pressure portion is coaxial, and the pressure portion pressure remains motionless at the district that waits to weld for pressure remains stable in the pressure welding operation in-process, improves welding quality.

Optionally, the driving assembly includes a force transmission part and a power part, the force transmission part is connected between the power part and the installation part, and the force transmission part is used for transmitting the power of the power part to the installation part and driving the installation part to perform circumferential movement.

Through adopting above-mentioned technical scheme, the removal of pressure welding operation and installation department all can be automatic go on, improves production efficiency, reduces artificial influence, keeps production quality stable.

Optionally, the mounting part rotates around the radial direction of the through hole, and a bending part is formed at the part of the mounting part corresponding to the through hole in a bending way;

preferably, the bending part is in one of arc shape, U shape and V shape.

Through adopting above-mentioned technical scheme, the radial rotation of installation department around the through-hole removes specifically little, reduces drive assembly's structure for whole equipment structure is compacter.

Optionally, the number of the through holes is plural, and the number of the pressing pieces is plural and corresponds to the through holes one by one.

By adopting the technical scheme, the pressure welding clamp can simultaneously act on a plurality of workpieces to carry out pressure welding operation, so that the production efficiency of pressure welding products is improved.

Optionally, at least one of the driving assemblies is configured to rotate the mounting portions on at least two of the pressing members.

Through adopting above-mentioned technical scheme, drive assembly drives the installation department rotation of more than two pressure applying piece simultaneously, reduces drive assembly's quantity for a plurality of work pieces can carry out the pressure welding operation in step, improve production efficiency.

Optionally, the press welding fixture further comprises a lifting assembly, wherein the lifting assembly is used for pushing the workpiece to be attached to the base, and the lifting assembly and the pressing part jointly press the workpiece from two sides.

Through adopting above-mentioned technical scheme, wait that welded work piece can go on the material loading through lifting unit, reduce working strength.

Optionally, the force transmission part comprises a connecting plate and a connecting rod, the connecting plate is connected with the output end of the power part, one end of the connecting rod is fixed with the mounting part, and the other end of the connecting rod is hinged with the connecting plate;

Or the force transmission part comprises one of a gear transmission mechanism, a chain transmission mechanism, a belt transmission mechanism or a worm and gear transmission mechanism;

the power part comprises one of a cylinder or a motor;

Preferably, the base is connected with a floating plate, and a cushion block is arranged between the floating plate and the base;

Preferably, the base is provided with a positioning pin.

By adopting the technical scheme, the driving assembly is simple in structure and convenient to maintain. The locating pin enables the workpiece to keep the welding position fixed during the pressure welding operation, and the quality consistency of batch welding products is improved.

In a second aspect, the present application provides a pressure welding apparatus, which adopts the following technical scheme:

The welding equipment comprises a welding machine, and further comprises any one of the welding clamps, wherein a welding head of the welding machine can be directly heated to the welding area of the workpiece through a welding channel of the welding clamp.

By adopting the technical scheme, the pressure welding equipment can continuously perform uninterrupted welding operation on the circumferential to-be-welded area at one time, reduce the possibility of subsequent repair welding, and improve the production efficiency and quality.

In summary, the present application includes at least one of the following beneficial technical effects: when the welding head moves to a position close to the connecting arm, the driving assembly drives the connecting arm to rotate along with the welding head, so that the welding head can move to the original connecting arm position and perform welding operation on a workpiece product. The welding head can weld the workpiece circumferentially at one time in the whole process, so that the subsequent repair welding work is reduced, and the automatic operation is facilitated.

Drawings

FIG. 1 is a schematic diagram of a work piece product in the background art;

FIG. 2 is a schematic diagram of a press-welding fixture according to an embodiment of the application;

FIG. 3 is a schematic view of the structure of the relation between the pressing member and the base;

FIG. 4 is a schematic view of a structure of the base at a side far from the driving assembly;

FIG. 5 is a schematic view of the base with the suspension plate removed;

FIG. 6 is a cross-sectional view taken along the A-A plane in FIG. 4 showing the attachment of the pressure member to the base;

FIG. 7 is a schematic view showing another connection between the pressing member and the base;

FIG. 8 is a schematic view of a loading mechanism according to a second embodiment of the present application;

FIG. 9 is a block diagram of a loading mechanism and a press welding fixture used in combination according to the second embodiment of the present application;

FIG. 10 is a front view of FIG. 8;

Fig. 11 is a schematic structural diagram of a three-pressure welding apparatus according to an embodiment of the present application.

Reference numerals illustrate:

1. A workpiece product; 11. a substrate; 111. a mounting groove; 12. a boss;

2. A mounting frame; 21. a base; 211. a through hole; 22. a support post; 23. a fixing seat; 231. an opening; 24. a positioning pin; 25. a support; 26. a floating plate; 27. a cushion block; 28. elastic pressing points;

3. a pressurizing member; 31. a mounting ring; 32. a pressing section; 33. a connecting arm; 34. a relief groove;

4. A drive assembly; 41. a cylinder; 42. a connecting plate; 421. a bar-shaped hole; 43. a connecting rod; 431. a spool;

5. a lifting assembly; 51. a lifting table; 511. an assembly groove;

6. A linear guide rail; 61. a mounting base;

7. A loading mechanism; 71. a bottom plate; 711. a fixing plate; 72. a carrying platform; 721. a receiving groove; 722. positioning holes; 723. a positioning groove; 73. a buffer assembly; 731. a base; 732. a connecting column; 733. a buffer member; 734. a roller;

8. Welding machine; 81. a work table; 811. a mounting port; 82. welding head.

Detailed Description

The application is described in further detail below with reference to fig. 2-10.

The embodiment of the application discloses a pressure welding fixture and pressure welding equipment.

Embodiment one:

Referring to fig. 2, the press-welding jig includes a mounting frame 2, a pressing member 3, and a driving assembly 4, the pressing member 3 and the driving assembly 4 being mounted on the mounting frame 2.

The mounting frame 2 includes a base 21, and the pressing member 3 is mounted on the base 21. The base 21 may be a rectangular plate, the four corners of the base 21 are vertically fixed with the support posts 22 by screws, two support posts 22 at the same end are connected with a fixing seat 23, and the support posts 22 and the fixing seat 23 can be welded and fixed.

Referring to fig. 3 and 4, the pressing member 3 includes a mounting portion including a mounting ring 31 and a connection arm 33, and a pressing portion 32, the mounting ring 31 being connected to the pressing portion 32 through the connection arm 33, the pressing portion 32 being disposed coaxially with the mounting ring 31. One end of the connecting arm 33 is fixedly connected with the mounting ring 31, such as integrally formed; the other end of the connecting arm 33 is rotatably connected to the pressing portion 32, such as a bearing provided between the connecting arm 33 and the pressing portion 32. The mounting ring 31 is rotatably connected to the base 21. The pressing portion 32 is formed in a rod shape as a whole, and an annular relief groove 34 is formed between the pressing portion 32 and the mounting ring 31.

Referring to fig. 4 and 5, the base 21 is provided with a through hole 211, and the end of the pressing portion 32 is inserted into the through hole 211 and coaxially disposed, and the through hole 211 communicates with the relief groove 34 so that the bonding tool can weld the work product 1 with the through hole 21 through the relief groove 34.

The side of the base 21 away from the mounting ring 31 is provided with a groove around the through hole 211, and the floating plate 26 is connected to the position of the groove of the base 21. The support member 25 is fixed to the edge of the base 21 located in the groove, the edge of the floating plate 26 is supported on the support member 25, and the cross section of the support member 25 may be L-shaped. The base 21 is provided with a plurality of resilient pressure points 28 around the recess for applying pressure to the floating plate 26. The base 21 is provided with a spacer 27 around the through hole 211 so that a minimum distance is maintained between the floating plate 26 and the base 21, which is not lower than the height of the boss 12 of the work product 1, so as not to cause deformation of the work product 1 after the pressing portion 32 is pressed against the boss 12.

The base 21 is also provided with positioning pins 24, where there are two positioning pins 24, as required.

Here, there are two pressing members 3, and there are two through holes 211 on the base 21. In other implementations of the embodiments of the present application, the number of the pressing members 3 may be 1,3, 4 or more, and may be specifically designed according to actual needs to meet the production efficiency requirement.

The end of the pressing portion 32 may be designed to be detachably fixed, where the detachable fixation may be selected to be bolted, so that the end of the pressing portion 32 can be replaced after being worn out for a while. While the ends of the pressing portions 32 can be replaced adaptively according to the structure of the work product 1 to be welded.

Referring to fig. 6, the driving assembly 4 includes a cylinder 41, a connection plate 42 and a connection rod 43, the cylinder 41 being fixed at one side of the base 21, the connection plate 42 being fixed at an end of a piston rod of the cylinder 41 by a screw, the connection plate 42 being moved in a direction of a center line of the two pressing portions 32; the connection plate 42 is provided at both ends with a bar-shaped hole 421, and the bar-shaped hole 421 is provided along a direction perpendicular to the movement direction of the connection plate 42. One end of the connecting rod 43 is fixed with the mounting ring 31 by a screw, the other end of the connecting rod 43 is fixed with a sliding column 431, and the sliding column 431 extends into the bar-shaped hole 421 and can slide relatively.

When the air cylinder 41 drives the connecting plate 42 to move, the connecting plate 42 drives the mounting part to rotate through the connecting rod 43, so that the connecting arm 33 moves under the condition that the pressing part 32 is kept pressed, and the welding head is beneficial to moving to the original connecting arm 33 and welding work on the workpiece product 1. Thus, when the welding head welds the boss 12 of the workpiece product 1 along the circumferential direction, the driving component 4 drives the connecting arm 33 to move in advance, so that the welding head welds the boss 12 at one time without interruption, and the automation efficiency is improved.

In other implementations of the embodiment of the present application, the driving assembly 4 may be designed in other structures, as long as the driving assembly can drive the mounting ring 31 to rotate. For example, the driving assembly 4 includes a motor, and the motor is in transmission connection with the mounting ring 31, and the transmission mode may be belt transmission, chain transmission, gear transmission, worm gear transmission, and the like.

In order to enable the work piece product 1 to be pushed to the base 21, the press welding jig further includes a jig elevating assembly 5. The lifting assembly 5 comprises a lifting table 51 and a lifting power part, wherein the lifting power part can be an air cylinder, and the lifting table 51 is fixed at the end part of a piston rod of the air cylinder. The cylinder can be fixed on the fixed seat 23 through bolts and the piston rod is vertically arranged, and an opening 231 matched with the contour of the lifting platform 51 is formed in the fixed seat 23.

Referring to fig. 6, the working principle of the press welding fixture is as follows:

The workpiece product 1 to be welded is moved to the bottom of the base 21 such that the boss 12 is located right below the through hole 211 of the base 21, so that the end of the pressing portion 32 presses against the boss 12, keeping the entire workpiece product 1 stationary. The bonding tool then heat welds the periphery of the boss 12 through the relief groove 34 and the through hole 211. When the welding head moves to a position close to the connecting arm 33, the driving assembly 4 drives the mounting ring 31 to rotate, and the connecting arm 33 connected with the mounting ring 31 rotates along with the mounting ring, so that the welding head can move to the original connecting arm 33 position and perform welding operation on the workpiece product 1. The welding head can weld the boss 12 in the circumferential direction at one time in the whole process, and is beneficial to automatic operation.

Referring to fig. 7, in other implementations of the embodiment of the present application, the pressing member 3 may further include a pressing portion 32 and a connection arm 33, one end of the connection arm 33 is rotatably connected to the pressing portion 32 along an axis of the pressing portion 32, the other end of the connection arm 33 is rotatably connected to the base 21, and a portion of the connection arm 33 corresponding to the region of the through hole 211 is bent to form a bent portion. The driving component 4 is connected with the connecting arm 33 and drives the connecting arm 33 to rotate. The position of the connecting arm 33 can thus be adjusted by rotating the connecting arm 33. The bending part can be any one of arc, U-shaped and V-shaped.

Embodiment two:

referring to fig. 8 and 9, a bonding assistance device includes a bonding jig, a linear guide 6, and a loading mechanism 7.

The loading mechanism 7 may be mounted on the linear guide 6, and the linear guide 6 includes the mounting seat 61, and the fixing plate 711 and the mounting seat 61 may be fixed by bolts.

The linear guide 6 may be disposed below the mounting frame 2 of the press welding jig, so that the loading mechanism 7 can be moved below the base 21 by the linear guide 6.

Referring to fig. 8 and 10, the loading mechanism 7 includes a base plate 71, a carrier table 72, and a buffer assembly 73. The carrier 72 is located on one side of the base plate 71, and the damper assembly 73 is mounted on the other side of the base plate 71.

The bottom plate 71 may be a rectangular plate, and a fixing plate 711 is fixedly connected to a surface of the bottom plate 71 away from the carrying table 72.

The bearing table 72 is supported on the bottom plate 71, and the bearing table 72 is provided with a containing groove 721, and the contour of the containing groove 721 is matched with the contour of the base plate 11, so that the position of the base plate 11 of the workpiece product 1 to be welded is fixed after being placed. The bottom wall of the carrying table 72 located in the accommodation groove 721 is provided with a positioning hole 722, and the positioning hole 722 corresponds to the position of the mounting groove 111 on the substrate 11 in the position of the accommodation groove 721, so that the substrate 11 can be checked again by the positions of the positioning hole 722 and the mounting groove 111 after being placed in the accommodation groove 721. The positioning holes 722 may also be used to determine and calibrate the placement position of the boss 12. The carrier 72 is further provided with a positioning groove 723 at the periphery of the accommodation groove 721,

The bumper assembly 73 includes a base 731, a connecting post 732, and a bumper 733. One end of the connection post 732 is fixed to the base 731, and the other end of the connection post 732 passes through the bottom plate 71 and is fixed to the support base 72, so that the connection post 732 can slide up and down with respect to the bottom plate 71. The buffer 733 may be a spring, which is sleeved on the connecting post 732 and located between the base 731 and the bottom plate 71.

On the base 731, a roller 734 is mounted, the roller 734 being located on a side wall of the base 731 with an axis disposed horizontally.

Each carrier 72 may correspond to two sets of buffer assemblies 73. The carrying platforms 72 may be two and arranged side by side on the base plate 71. The carrying platforms 72 may also be provided in other numbers, such as 1, 3 or more than 4, as desired. When the number of the carrying platforms 72 is plural, the central axes of the rollers 734 on the same side of the buffer assembly 73 are located at the same height.

In order to enable the lifting assembly 5 to drive the carrying platform 72 to lift, a horizontal assembly groove 511 is formed in the lifting platform 51, and a roller 734 on the loading mechanism 7 can slide into the assembly groove 511. The lifting assembly 5 can push the buffer assembly 73 to move upwards, and the bearing table 72 connected with the buffer assembly 73 moves upwards and abuts against the base 21, so that the pressing part 32 of the pressing piece 3 presses against the boss 12 of the workpiece product 1 to be welded. Meanwhile, the positioning pins 24 on the base 21 are inserted into the positioning grooves 723 on the bearing table 72, so that the position of the bearing table 72 is kept stable, the welding precision of the workpiece products 1 welded in batches is consistent, and the product quality stability is improved.

After the welding of the workpiece product 1 is finished, the lifting assembly 5 drives the bearing table 72 to move downwards, and the linear guide rail 6 drives the loading mechanism 7 to move continuously and weld the next workpiece product 1.

Embodiment III:

Referring to fig. 11, a welding apparatus includes a welder 8, a press welding jig, a linear guide 6, and a loading mechanism 7. The welder 8 includes a table 81 and a welding head 82, the welding head 82 being movable in the X-axis, Y-axis, and Z-axis directions. The pressure welding clamp, the linear guide rail 6 and the loading mechanism 7 are arranged side by side.

The workbench 81 is provided with a mounting hole 811, the fixing seat 23 of the pressure welding fixture is fixed at the mounting hole 811 on the workbench 81 by a screw, and the lifting assembly 5 is positioned on the bottom surface of the workbench 81.

The linear guide 6 is fixedly mounted on the table 81, and the two linear guides 6 may be disposed in parallel.

The welding equipment can efficiently and stably press-weld the workpiece product 1, and the manufactured workpiece product 1 is stable in quality.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims

1. A bonding tool for a workpiece comprising a substrate and a boss, comprising:

a base (21) having at least one through hole (211);

A pressing member (3) connected to the base (21) for pressing the welding area of the workpiece; the pressing piece (3) comprises a mounting part and a pressing part (32), wherein the mounting part is used for connecting the pressing part (32) and the base (21), the end part of the pressing part (32) penetrates through the through hole (211) and a welding channel is formed between the end part and the inner wall of the through hole (211), and the welding channel is used for directly heating the heating energy of the welding head (82) in the welding area of the workpiece; the mounting part is rotationally connected with the pressing part (32);

The driving assembly (4) is connected with the base (21) and the pressing piece (3) and is used for driving the installation part to rotate so that the projection position of the installation part along the axis of the through hole (211) moves;

The pressure welding fixture further comprises a lifting assembly (5), the lifting assembly (5) is used for pushing the workpiece to be attached to the base (21), and the lifting assembly (5) and the pressing part (32) jointly press the workpiece from two sides;

The base (21) is connected with a floating plate (26), and a cushion block (27) is arranged between the floating plate (26) and the base (21); the base (21) is provided with a plurality of elastic pressing points (28) around the groove,

A positioning pin (24) is arranged on the base (21);

The mounting part rotates around the axis of the through hole (211);

the mounting part comprises a mounting ring (31) and a connecting arm (33) which are fixedly connected, the mounting ring (31) and the base (21) are coaxially and rotatably arranged, and one end of the connecting arm (33) far away from the mounting ring (31) and the pressing part (32) are coaxially and rotatably arranged;

The driving assembly (4) comprises a force transmission part and a power part, wherein the force transmission part is connected between the power part and the mounting part, the force transmission part is used for transmitting the power of the power part to the mounting part and driving the mounting part to move circumferentially, the mounting part rotates around the radial direction of the through hole (211), and a bending part is formed at the position, corresponding to the through hole (211), of the mounting part in a bending mode.

2. The bonding clamp according to claim 1, wherein:

the bending part is in one of arc shape, U shape and V shape.

3. The bonding clamp according to claim 1 or 2, wherein: the number of the through holes (211) is plural, and the pressing pieces (3) are plural and correspond to the through holes (211) one by one.

4. A bonding clamp according to claim 3, wherein: at least one driving assembly (4) is used for driving the mounting parts on at least two pressing pieces (3) to rotate.

5. The bonding clamp according to claim 4, wherein: the force transmission part comprises a connecting plate (42) and a connecting rod (43), the connecting plate (42) is connected with the output end of the power part, one end of the connecting rod (43) is fixed with the mounting part, and the other end of the connecting rod (43) is hinged with the connecting plate (42);

the power section includes one of a cylinder (41) or a motor.

6. A pressure welding apparatus for a workpiece comprising a substrate and a boss, comprising a welder (8), characterized in that: the press welding apparatus further comprises a press welding jig as claimed in any one of claims 1 to 5, wherein a welding head (82) of the welding machine (8) is capable of being directly heated to the workpiece welding zone through a welding channel of the press welding jig.