Positioning welding clamp

Abstract

The utility model relates to the technical field of mechanical assembly, aims to solve the problem of how to reduce the time spent on axle housing remodeling, and provides a positioned welding clamp. The positioned welding clamp comprises a rack, an axle housing fixing assembly and an accessory positioning assembly. The axle housing fixing assembly comprises a positioning piece and a plurality of clamping pieces. The accessory positioning assembly comprises a control part, a driving part and a calibration part, the calibration part is movably arranged on the rack, the driving part is in transmission connection with the calibration part, the control part is electrically connected with the clamping part and the driving part, and the control part controls the driving part to move the calibration part to a target position, so that the calibration part positions the position of the axle housing accessory. According to the positioned welding clamp, the axle housing is positioned and fixed through the positioning piece and the clamping piece firstly, then the control piece controls the driving piece to move, the driving piece moves the calibration piece to the target position, and therefore the calibration piece of the positioned welding clamp achieves automatic position calibration, axle housing accessories are quickly positioned to the correct position of the axle housing, and the positioning accuracy is improved. Therefore, the effect of reducing the time spent on remodeling the axle housing is achieved.

Description

Technical Field

[0001] This application relates to the technical field of mechanical assembly, and more particularly to a positioning welding fixture. Background Art

[0002] The axle housing accessories include a guide seat, an upper thrust rod support, a plate support, a lower thrust rod support, and a flange. The axle housing and its accessories are fixedly connected by welding. For different types of axle housings, the shapes of their accessories are similar. Usually, different fixtures are used to adapt to different types of axle housing accessories for assisting in the welding of the axle housing and its accessories.

[0003] In the prior art, the position of the fixture is fixed by bolts. When changing the type of the axle housing, disassembling and assembling the bolts are required to replace the fixture, resulting in a long time for changing the type of the axle housing. How to solve the above technical problems is what those skilled in the art need to consider. Summary of the Utility Model

[0004] This application provides a positioning welding fixture to solve the problem of how to reduce the time spent on changing the type of the axle housing.

[0005] An embodiment of this application provides a positioning welding fixture, which includes a frame, an axle housing fixing component, and an accessory positioning component. The frame is used to place the axle housing. The axle housing fixing component includes a positioning member and a plurality of clamping members. The positioning member is arranged on the frame, and the plurality of clamping members are arranged at intervals on the positioning member. The positioning member is used to position the axle housing, and the clamping members are used to clamp the axle housing. The accessory positioning component includes a control member, a driving member, and a calibration member. The calibration member is movably arranged on the frame. The driving member is in transmission connection with the calibration member. The control member is electrically connected to the clamping members and the driving member respectively. After receiving the signal that the clamping members clamp the axle housing, the control member controls the driving member to move the calibration member to a target position so that the calibration member positions the position of the axle housing accessory.

[0006] Compared with the prior art, the positioning welding fixture provided in this embodiment first positions and fixes the axle housing through the positioning member and the clamping members, and then the control member controls the driving member to move. The driving member moves the calibration member to the target position, so that the calibration member of the positioning welding fixture automatically calibrates the position, quickly positions the axle housing accessory to the correct position of the axle housing, thereby saving the time for disassembling and assembling the fixture, and achieving the effect of reducing the time spent on changing the type of the axle housing.

[0007] In a possible implementation manner, the clamping member includes a jaw and a driver. One end of the driver is fixedly connected to the positioning member, and the other end is movably connected to the jaw. The driver is used to drive the jaw to clamp the axle housing, and the driver is electrically connected to the control member.

[0008] In a possible implementation, the jaw includes a moving rod and a pressing block. One end of the moving rod is movably arranged on the driver, and the other end is fixedly connected to the pressing block. The moving rod can be driven by the driver to extend into the pipa hole of the axle housing and drive the pressing block to tightly press one end of the axle housing opposite to the positioning member.

[0009] In a possible implementation, a stepped surface is recessed on the surface of the pressing block, and the stepped surface corresponds to the hole wall of the pipa hole to fix the axle housing.

[0010] In a possible implementation, the driver is a cylinder.

[0011] In a possible implementation, the positioning member includes a bottom plate and a positioning block. The bottom plate is movably arranged on the frame, the positioning block is fixedly connected to the bottom plate, the positioning block is spaced from the clamping member, and the axle housing is fixed between the positioning block and the clamping member.

[0012] In a possible implementation, the positioning member further includes a moving frame. The moving frame includes a first slide rail and a second slide rail. The first slide rail is fixedly connected to the frame, the second slide rail is movably arranged on the first slide rail along the vertical direction, and the bottom plate is movably arranged on the second slide rail along the vertical direction.

[0013] In a possible implementation, the positioning member further includes a first servo motor and a second servo motor. The first servo motor is used to drive the second slide rail to move along the first slide rail, and the second servo motor is used to drive the bottom plate to move along the second slide rail. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 Is a perspective view of the positioning welding fixture of an embodiment of the present application;

[0016] Figure 2 Is Figure 1 The front view of the positioning welding fixture of;

[0017] Figure 3 Is Figure 1 The partial enlarged view of area A of the positioning welding fixture of;

[0018] Figure 4It is a structural schematic diagram of a bridge housing and its accessories.

[0019] Description of main component symbols:

[0020] 1. Tack welding fixture; 11. Frame; 12. Bridge housing fixing assembly; 13. Positioning part; 131. Bottom plate; 132. Positioning block; 133. Moving frame; 134. First slide rail; 135. Second slide rail; 14. Clamping part; 141. Claw; 142. Moving rod; 143. Pressing block; 144. Step surface; 145. Driver; 15. Upper pushing position part; 16. Lower pushing position part; 17. Plate support position part; 18. Flange position part; 19. Driving part; 21. Bridge housing; 211. Lute hole; 22. Upper thrust rod support; 23. Lower thrust rod support; 24. Guide seat; 25. Plate support; 26. Flange; 31. X-axis direction; 32. Y-axis direction; 33. Z-axis direction. Specific implementation manners

[0021] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0022] Some implementation manners of the present application will be described in detail. Without conflict, the following implementation manners and the features in the implementation manners can be combined with each other.

[0023] Embodiment

[0024] Please refer to Figures 1 to 4 As shown, this embodiment provides a tack welding fixture 1, including a frame 11, a bridge housing fixing assembly 12 and an accessory positioning assembly. The frame 11 is used to place the bridge housing 21. The bridge housing fixing assembly 12 includes a positioning part 13 and a plurality of clamping parts 14. The positioning part 13 is arranged on the frame 11, and the plurality of clamping parts 14 are arranged at intervals on the positioning part 13. The positioning part 13 is used to position the bridge housing 21, and the clamping part 14 is used to clamp the bridge housing 21. The accessory positioning assembly includes a control part, a driving part 19 and a calibration part. The calibration part is movably arranged on the frame 11. The driving part 19 is in transmission connection with the calibration part. The control part is electrically connected to the clamping part 14 and the driving part 19 respectively. After the control part receives the signal that the clamping part 14 clamps the bridge housing 21, the control part controls the driving part 19 to move the calibration part to the target position so that the calibration part positions the position of the bridge housing accessory.

[0025] The positioning welding fixture 1 provided in this embodiment first positions and fixes the bridge housing 21 through the positioning member 13 and the clamping member 14, and then controls the driving member 19 to move through the control member. The driving member 19 moves the calibration member to the target position, so that the calibration member of the positioning welding fixture 1 realizes automatic position calibration, quickly positions the bridge housing accessories to the correct position of the bridge housing 21, thereby saving the time for disassembling and assembling the fixture, and reducing the time spent on the changeover of the bridge housing 21.

[0026] In this embodiment, the bridge housing accessories include an upper thrust rod support 22, a lower thrust rod support 23, a guide seat 24, a plate support 25, and a flange 26.

[0027] The calibration member includes an upper push position member 15, a lower push position member 16, a plate support position member 17, and a flange position member 18.

[0028] The control member includes an industrial computer and a touch screen. The driving member 19 includes a plurality of servo motors, and the servo motors respectively correspond to the upper push position member 15, the lower push position member 16, the plate support position member 17, and the flange position member 18 one by one. The industrial computer is electrically connected to the servo motors respectively, and the industrial computer is used to store parameters to control each servo motor. The industrial computer is electrically connected to the clamping member 14. After receiving the signal that the clamping member 14 clamps the bridge housing 21, the industrial computer controls each servo motor to move the corresponding upper push position member 15, lower push position member 16, plate support position member 17, and flange position member 18 to the target position, and the calibration member is used to position the bridge housing accessories. The touch screen is electrically connected to the industrial computer, and the touch screen is used to adjust the parameters stored in the industrial computer.

[0029] The position parameters and programs of different types of bridge housing accessories are stored in the industrial computer. When different types of bridge housing accessories need to be produced, the corresponding parameters and programs are directly called from the industrial computer to control the driving member 19 to move the calibration member. The parameters in the industrial computer are finely adjusted through the touch screen, and the parameters called from the industrial computer are adjusted using the touch screen, so that the calibration member moves to a suitable position of the bridge housing 21, improving the position accuracy of the movement of the calibration member, thereby improving the convenience of the positioning welding fixture 1 and reducing the time spent on the changeover of the bridge housing 21.

[0030] Specifically, the upper push position member 15 is movably connected to the frame 11. The upper push position member 15 is moved to a suitable position of the bridge housing 21 through a servo motor, and then the upper thrust rod support 22 is placed on the upper push position member 15, so that the upper thrust rod support 22 is positioned to a suitable position of the bridge housing 21.

[0031] The lower push position member 16 is movably connected to the frame 11. The lower push position member 16 is moved to a suitable position of the bridge housing 21 through a servo motor, and then the lower thrust rod support 23 is placed on the lower push position member 16, so that the lower thrust rod support 23 is positioned to a suitable position of the bridge housing 21.

[0032] The plate support position member 17 is movably connected to the frame 11. The plate support position member 17 is moved to a suitable position of the axle housing 21 by a servo motor, and then the guide seat 24 and the plate support 25 are placed on the plate support position member 17, so that the guide seat 24 and the plate support 25 are positioned at a suitable position of the axle housing 21.

[0033] The flange position member 18 is movably connected to the frame 11. The flange position member 18 is moved to a suitable position of the axle housing 21 by a servo motor, and then the flange 26 is moved to the flange position member 18, so that the flange 26 is positioned at a suitable position of the axle housing 21.

[0034] The calibration members and the driving members 19 are in one-to-one correspondence. The driving members 19 are controlled by the control member to quickly position the calibration members to the correct positions of the axle housing 21, so as to facilitate the quick positioning of the axle housing accessories to the correct positions of the axle housing 21 for welding, thereby saving the time for disassembling and assembling the fixture and reducing the time spent on changing the type of the axle housing 21.

[0035] In a possible implementation manner, the clamping member 14 includes a jaw 141 and a driver 145. One end of the driver 145 is fixedly connected to the positioning member 13, and the other end is movably connected to the jaw 141. The driver 145 is used to drive the jaw 141 to clamp the axle housing 21, and the driver 145 is electrically connected to the control member.

[0036] In this embodiment, the driver 145 can use air pressure or a motor to drive the jaw 141 to clamp or loosen the axle housing 21, and this embodiment is not limited thereto. The driver 145 is electrically connected to the industrial control computer of the control member. After the driver 145 drives the jaw 141 to clamp the axle housing 21, it sends a signal to the industrial control computer, and the industrial control computer controls each servo motor to move the corresponding upper push position member 15, lower push position member 16, plate support position member 17 and flange position member 18 to the target positions.

[0037] In a possible implementation manner, the jaw 141 includes a moving rod 142 and a pressing block 143. One end of the moving rod 142 is movably arranged on the driver 145, and the other end is fixedly connected to the pressing block 143. The moving rod 142 can be driven by the driver 145 to extend into the pipa hole 211 of the axle housing 21 and drive the pressing block 143 to press one end of the axle housing 21 opposite to the positioning member 13.

[0038] In this embodiment, the driver 145 is a rotary clamping cylinder. After the axle housing 21 is fixed to the axle housing fixing assembly 12, the driver 145 drives the moving rod 142 to extend into the pipa hole 211 of the axle housing 21, and the driver 145 drives the moving rod 142 to rotate so that the pressing block 143 rotates to the end face corresponding to the pipa hole 211, and then the driver 145 drives the moving rod 142 to contract so that the pressing block 143 presses the axle housing 21.

[0039] In a possible implementation, a stepped surface 144 is formed by the depression on the surface of the pressing block 143, and the stepped surface 144 corresponds to the hole wall of the pipa hole 211 to fix the bridge housing 21.

[0040] In this embodiment, the pressing block 143 fixes the bridge housing 21 by the stepped surface 144 to fit the end face of the pipa hole 211 and the hole wall of the pipa hole 211.

[0041] In a possible implementation, the positioning member 13 includes a bottom plate 131 and a positioning block 132. The bottom plate 131 is movably arranged on the frame 11. The positioning block 132 is fixedly connected to the bottom plate 131. The positioning block 132 is spaced from the clamping member 14, and the bridge housing 21 is fixed between the positioning block 132 and the clamping member 14.

[0042] In this embodiment, the bottom plate 131 drives the positioning block 132 and the clamping member 14 to move to a suitable position, so as to facilitate the installation of the bridge housing 21.

[0043] In a possible implementation, the positioning member 13 further includes a moving frame 133. The moving frame 133 includes a first slide rail 134 and a second slide rail 135. The first slide rail 134 is fixedly connected to the frame 11. The second slide rail 135 is movably arranged along the vertical direction on the first slide rail 134. The bottom plate 131 is movably arranged along the vertical direction on the second slide rail 135.

[0044] In a possible implementation, the positioning member 13 further includes a first servo motor and a second servo motor. The first servo motor is used to drive the second slide rail 135 to move along the first slide rail 134, and the second servo motor is used to drive the bottom plate 131 to move along the second slide rail 135.

[0045] In this embodiment, Figure 1 As shown, a rectangular coordinate system is established. The rectangular coordinate system includes an X-axis direction 31, a Y-axis direction 32, and a Z-axis direction 33 that are perpendicular to each other, where the Z-axis direction 33 is the vertical direction. The first slide rail 134 extends along the Y-axis direction 32, the second slide rail 135 extends along the Z-axis direction 33, the first servo motor drives the second slide rail 135 to move along the Y-axis direction 32, and the second servo motor drives the bottom plate 131 to move along the Z-axis direction 33.

[0046] The calibration member is movably connected to the frame 11 through a guide rail and a slider, and the calibration member is driven to move by a servo motor.

[0047] The position parameters and programs of different types of axle housing accessories are stored in the industrial control computer. When different types of axle housing accessories need to be produced, the corresponding parameters and programs are directly called from the industrial control computer to control the driving part 19 to move the calibration part. The parameters in the industrial control computer can be finely adjusted. The parameters called from the industrial control computer are adjusted through the touch screen, so that the calibration part moves to a suitable position of the axle housing 21, so as to improve the position accuracy of the movement of the calibration part, thereby improving the convenience of the positioning welding fixture 1 and reducing the time spent on axle housing model change.

[0048] When the positioning welding fixture 1 is in use, the operation steps are as follows:

[0049] 1. Check that the positions of the axle housing fixing component 12 and the calibration part are in the original positions on the frame 11;

[0050] 2. Manually fit the flange 26 onto the axle tube of the axle housing 21 and push the flange 26 close to the middle of the axle housing 21. Use a lifting tool to lift the axle housing and place it on the frame 11, and the pipa hole 211 of the axle housing 21 corresponds to the clamping part 14;

[0051] 3. Select the parameters of the corresponding model of the axle housing 21 in the industrial control computer through the touch screen. The driver 145 drives the moving rod 142 to extend into the pipa hole 211 of the axle housing 21 and drives the pressing block 143 to press one end of the axle housing 21 opposite to the positioning part 13, so that the positioning welding fixture 1 positions and fixes the axle housing 21;

[0052] 4. Push up the position part 15 to move to a suitable position of the axle housing 21 through the servo motor, and then place the upper thrust rod support 22 on the position part 15 pushed up, so that the upper thrust rod support 22 is positioned to a suitable position of the axle housing 21;

[0053] 5. The lower push position part 16 is movably connected to the frame 11. The lower push position part 16 moves to a suitable position of the axle housing 21 through the servo motor, and then the lower thrust rod support 23 is placed on the lower push position part 16, so that the lower thrust rod support 23 is positioned to a suitable position of the axle housing 21;

[0054] 6. The plate support position part 17 moves to a suitable position of the axle housing 21 through the servo motor, and then the guide seat 24 and the plate support 25 are placed on the plate support position part 17, so that the guide seat 24 and the plate support 25 are positioned to a suitable position of the axle housing 21;

[0055] 7. The flange position part 18 moves to a suitable position of the axle housing 21 through the servo motor, and then the flange 26 is moved to the flange position part 18, so that the flange 26 is positioned to a suitable position of the axle housing 21.

[0056] 8. Then spot weld the accessories of the axle housing 21 in sequence.

[0057] 9. After spot welding is completed, the driver 145 drives the moving rod 142 to drive the pressing block 143 to separate from the axle housing 21, and the moving rod 142 and the pressing block 143 are moved out of the axle housing 21 from the pipa hole 211 of the axle housing 21, so that the positioning welding fixture 1 is separated from the axle housing 21, and the positioning welding fixture 1 is reset.

[0058] The positioning welding fixture 1 provided in this embodiment is movably connected to the frame 11 through the axle housing fixing component 12, the upward pushing position member 15, the downward pushing position member 16, the plate support position member 17 and the flange position member 18 respectively, so as to be convenient for adjustment to adapt to the assembly and positioning welding of various types of axle housings 21 and their accessories. The positioning welding fixture 1 controls the driving member 19 through the control member to enable the accessories of the axle housing 21 to be finely adjusted to the correct position of the axle housing 21 through the upward pushing position member 15, the downward pushing position member 16, the plate support position member 17 and the flange position member 18 respectively, thereby reducing the labor intensity of manually adjusting the fixture, saving the time for disassembling and assembling the fixture, and reducing the time spent on changing the type of the axle housing 21.

[0059] The above embodiments are only used to illustrate the technical solutions of the present application rather than to limit them. Although the present application has been described in detail with reference to the above preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A positioning welding fixture, characterized in that: include: A rack for placing the axle housing; A bridge housing fixing assembly comprises a positioning member and a plurality of clamping members, wherein the positioning member is arranged on the frame, and a plurality of clamping members are arranged on the positioning member at intervals, the positioning member is used to position the bridge housing, and the clamping member is used to clamp the bridge housing; The accessory positioning assembly includes a control member, a driving member and a calibration member, wherein the calibration member is movably arranged on the frame, the driving member is transmission-connected to the calibration member, the control member is electrically connected to the clamping member and the driving member respectively, and after receiving a signal from the clamping member clamping the bridge housing, the control member controls the driving member to move the calibration member to a target position so that the calibration member positions the bridge housing accessory.

2. The positioning welding fixture according to claim 1 is characterized in that: The clamping member includes a clamping claw and a driver, one end of the driver is fixedly connected to the positioning member, and the other end is movably connected to the clamping claw. The driver is used to drive the clamping claw to clamp the bridge housing, and the driver is electrically connected to the control member.

3. The positioning welding fixture according to claim 2 is characterized in that: The clamp includes a moving rod and a pressure block, one end of the moving rod is movably arranged on the driver, and the other end is fixedly connected to the pressure block. The moving rod can be driven by the driver to extend into the lute hole of the bridge housing and drive the pressure block to press the end of the bridge housing opposite to the positioning member.

4. The positioning welding fixture according to claim 3 is characterized in that: The surface of the pressing block is concave to form a step surface, and the step surface corresponds to the hole wall of the pipa hole to fix the bridge housing.

5. The positioning welding fixture according to claim 2, characterized in that: The driver is a cylinder.

6. The positioning welding fixture according to claim 1, characterized in that: The positioning member includes a base plate and a positioning block. The base plate is movably arranged on the frame. The positioning block is fixedly connected to the base plate. The positioning block and the clamping member are spaced apart. The bridge housing is fixed between the positioning block and the clamping member.

7. The positioning welding fixture according to claim 6, characterized in that: The positioning member also includes a movable frame, which includes a first slide rail and a second slide rail. The first slide rail is fixedly connected to the frame, the second slide rail is movably arranged on the first slide rail along the vertical direction, and the base plate is movably arranged on the second slide rail along the vertical direction.

8. The positioning welding fixture according to claim 7, characterized in that: The positioning member further includes a first servo motor and a second servo motor, wherein the first servo motor is used to drive the second slide rail to move along the first slide rail, and the second servo motor is used to drive the bottom plate to move along the second slide rail.

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