Vehicle frame repair welding tool

Abstract

The utility model discloses a car frame repair welding tool, which relates to the technical field of electric car production, and comprises a car frame fixing module and a positioning piece, the car frame fixing module is used for installing a car frame, during repair welding, the car frame fixing module can rotate around a preset rotating shaft under the driving of a rotary positioner, and the positioning piece is used for positioning the car frame. The positioning piece is used for being installed at the working end of the rotary positioner, a first positioning structure is arranged on the positioning piece and protrudes out of the side face of the positioning piece, a second positioning structure matched with the first positioning structure is arranged on the frame fixing module, and the second positioning structure is of a hole-shaped structure or a groove-shaped structure. The first positioning structure can be inserted into the second positioning structure, and the preset rotating shaft coincides with the rotation axis of the rotary positioner. According to the vehicle frame repair welding tool, the protruding first positioning structure is inserted into the second positioning structure, so that the procedure that multiple times of adjustment and alignment are conducted to enable the screw holes to correspond to the screw holes in position can be reduced, positioning is faster, and the tool replacing speed is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicle production, in particular to a frame repair welding tooling fixture. Background Art

[0002] The frame of an electric bicycle is formed by combining and welding multiple pipe fittings and sheet metal parts, and is an important component for connecting and carrying other components. The welding production of the electric bicycle frame is one of the important links in the manufacturing process of electric bicycles. From various pipe fittings and stamped parts to the finished frame, multiple steps are required. Among these steps, the most important assembly welding process is generally completed in five steps. Among them, when performing repair welding, the frame needs to be installed on the frame repair welding tooling fixture, and then the frame repair welding tooling fixture is installed on the rotary positioner, so that the frame rotates around the rotation axis of the rotary positioner to cooperate with the welding device to perform the repair welding of the missing weld beads. Since the production line needs to be frequently changed according to different products, the tooling fixtures used for producing electric vehicle frames of different models need to be frequently replaced. At present, screw holes are provided on the frame repair welding tooling fixture, and screw holes are also provided on the turntable of the rotary positioner. When installing, the worker needs to align the screw holes on the frame repair welding tooling fixture with the screw holes on the rotary positioner, and then install the bolts. Each time the tooling fixture is replaced, technicians need to spend a lot of time adjusting and aligning the screw holes. The overall process is complicated. After calculation, the conversion time for a single tooling fixture exceeds 8 minutes, which does not meet the requirements of rapid production change. Therefore, there is an urgent need for a frame repair welding tooling fixture with rapid positioning and faster tooling fixture replacement speed. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a frame repair welding tooling fixture to solve the problems existing in the above-mentioned prior art, with more rapid positioning and faster tooling fixture replacement speed.

[0004] To achieve the above purpose, the utility model provides the following scheme:

[0005] The utility model provides a frame repair welding tooling fixture, including: a frame fixing module and a positioning member. The frame fixing module is used for installing the frame. When performing repair welding, the frame fixing module can rotate around a preset rotation axis under the drive of a rotary positioner. The positioning member is used for being installed on the working end of the rotary positioner. A first positioning structure is provided on the positioning member, and the first positioning structure protrudes from the side surface of the positioning member. A second positioning structure is provided on the frame fixing module and is matched with the first positioning structure. The second positioning structure is a hole-shaped structure or a groove-shaped structure. The first positioning structure can be inserted into the second positioning structure to make the preset rotation axis coincide with the rotation axis of the rotary positioner.

[0006] Preferably, the positioning member is a plate-shaped structure, one side of the positioning member is used to be installed on the working end of the rotary positioner, and the other side is a mounting side, and the first positioning structure protrudes from the mounting side of the positioning member.

[0007] Preferably, the first positioning structure includes a plurality of first pins, the positioning member is provided with a plurality of mounting holes, the first pins extend into the mounting holes from a side of the positioning member away from the mounting side and extend out from the mounting side, the frame fixing module includes a connecting plate and a frame mounting structure, one side of the connecting plate is fixedly connected to the frame mounting structure, and the second positioning structure includes a plurality of first sockets, each of the first sockets is provided on the connecting plate, and the positions of each of the first sockets and each of the first pins correspond one to one.

[0008] Preferably, the first positioning structure also includes a positioning portion, which is fixedly connected to the installation side of the positioning member, and the center of the positioning portion is located on the rotation axis of the rotary positioner. The second positioning structure also includes a positioning hole, which is arranged on the connecting plate, and the positioning hole corresponds to the position of the positioning portion and matches the shape.

[0009] Preferably, the first insertion hole and the positioning hole are both through holes, and the first latch is a screw.

[0010] Preferably, the end of the positioning portion away from the positioning member is the first end, the end of each of the first pins away from the positioning member is the second end, the distance from the first end to the installation side is greater than the distance from the second end to the installation side, the positioning portion is a cylindrical structure, a part of the positioning portion close to the first end is an auxiliary installation portion, the end of the auxiliary installation portion close to the positioning member is the third end, and the auxiliary installation portion gradually approaches the rotation axis of the rotary positioner from the third end to the first end.

[0011] Preferably, the first positioning structure also includes a plurality of second pins, which are fixedly arranged on the installation side; the second positioning structure also includes a plurality of second sockets, each of which is arranged on the connecting plate; the positions of each of the second sockets correspond one-to-one to those of each of the second pins; the end of each of the second pins away from the positioning member is a fourth end, and the distance from the fourth end to the installation side is smaller than the distance from the second end to the installation side.

[0012] Preferably, the frame mounting structure includes a bracket, a control device and a plurality of clamping assemblies, the plurality of clamping assemblies are arranged on the connecting plate and / or the bracket, each of the clamping assemblies is used to clamp and fix the frame, the control device is respectively connected with each of the clamping assemblies by signal, and the control device can control each of the clamping assemblies to perform clamping or releasing actions simultaneously or separately.

[0013] Preferably, the clamping assembly includes a lateral clamping device, a pressing device and a frame head positioning device, the lateral clamping device includes two first cylinders and a first pressing part, the two first cylinders are arranged on both sides of the bracket, and the piston rods of the two first cylinders are arranged opposite to each other; the pressing device includes a second cylinder and a pressing part, the second cylinder is installed on one side of the bracket, the bracket has a working surface for setting the frame, the piston rod of the second cylinder is perpendicular to the working surface, and the pressing part is rotatably connected to the piston rod of the second cylinder around a rotating shaft parallel to the axial direction of the piston rod; the frame head positioning device includes a support member and a third cylinder, the support member is fixedly arranged on a side of the connecting plate away from the positioning member, the third cylinder is installed on the support member, the support member has a supporting surface, and the piston rod of the third cylinder is arranged opposite to the supporting surface.

[0014] Preferably, the pressing portion is rod-shaped, and one end of the pressing portion is rotatably connected to the piston rod of the second cylinder around a rotating axis parallel to the axial direction of the piston rod of the second cylinder.

[0015] Compared with the prior art, the utility model has achieved the following technical effects:

[0016] The utility model provides a vehicle frame repair welding tool, wherein a first positioning structure is arranged on a positioning piece, and a second positioning structure matched with the first positioning structure is arranged on a vehicle frame fixing module, the first positioning structure protrudes from a side surface of the positioning piece, and the second positioning structure is a hole-shaped structure or a groove-shaped structure, and is butted with the second positioning structure on the vehicle frame fixing module through the first positioning structure. Compared with the original alignment method of the screw holes, the method of inserting the protruding first positioning structure into the hole-shaped or groove-shaped second positioning structure can reduce the process of adjusting the alignment multiple times to make the screw holes correspond to the screw hole positions, and the positioning is more rapid, and the tool replacement speed is faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A three-dimensional structural diagram of the frame repair welding tool provided by the utility model;

[0019] Figure 2 A side view of a positioning member in a frame repair welding tool provided by the utility model;

[0020] Figure 3 The three-dimensional structure diagram of the connecting plate in the frame repair welding tooling provided by the present utility model;

[0021] In the figure: 1 - positioning member, 11 - first pin, 111 - second end, 12 - positioning portion, 121 - first end, 122 - auxiliary installation portion, 123 - third end, 13 - second pin, 131 - fourth end, 14 - docking head, 2 - connecting plate, 21 - first jack, 22 - positioning hole, 23 - bolt hole, 3 - frame installation structure, 31 - bracket, 32 - lateral clamping device, 321 - first cylinder, 33 - pressing device, 331 - second cylinder, 332 - pressing portion, 34 - frame head fixing device, 341 - third cylinder, 342 - support member, 4 - frame, 5 - rotary positioning machine. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] The purpose of the present utility model is to provide a frame repair welding tooling to solve the problems existing in the prior art, with faster positioning and faster tooling replacement speed.

[0024] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] The present utility model provides a frame repair welding tooling, as Figures 1-3 shown, including: a frame fixing module and a positioning member 1. The frame fixing module is used to install the frame 4. When performing repair welding, the frame fixing module can rotate around a preset rotation axis under the drive of the rotary positioning machine 5. The positioning member 1 is used to be installed on the working end of the rotary positioning machine 5. A first positioning structure is provided on the positioning member 1, and the first positioning structure protrudes from the side surface of the positioning member 1. A second positioning structure matching the first positioning structure is provided on the frame fixing module, and the second positioning structure is a hole-shaped structure or a groove-shaped structure. The first positioning structure can be inserted into the second positioning structure to make the preset rotation axis coincide with the rotation axis of the rotary positioning machine 5.

[0026] The utility model provides a frame repair welding tool, wherein a first positioning structure is arranged on a positioning piece 1, and a second positioning structure matched with the first positioning structure is arranged on a frame fixing module, the first positioning structure protrudes from a side surface of the positioning piece 1, and the second positioning structure is a hole-shaped structure or a groove-shaped structure, and is docked with the second positioning structure on the frame fixing module through the first positioning structure. Compared with the original alignment method of the screw holes, the method of inserting the protruding first positioning structure into the hole-shaped or groove-shaped second positioning structure can reduce the process of adjusting the alignment multiple times to make the screw holes correspond to the screw hole positions, and the positioning is faster and the tool replacement speed is faster.

[0027] In order to facilitate installation, in a preferred implementation of this embodiment, the positioning member 1 is a plate-like structure, one side of the positioning member 1 is used to be installed on the working end of the rotary positioner 5, and the other side is the installation side, and the first positioning structure protrudes from the installation side of the positioning member 1. Among them, the positioning member 1 is preferably a circular plate, and the side of the positioning member 1 away from the installation side is provided with a plurality of docking joints 14, and the docking joints 14 correspond one by one to the docking holes on the turntable of the rotary positioner 5, so as to facilitate the installation of the positioning member 1.

[0028] In a preferred implementation of this embodiment, the first positioning structure includes a plurality of first pins 11, a plurality of mounting holes are provided on the positioning member 1, the first pins 11 extend into the mounting holes from the side of the positioning member 1 away from the mounting side and extend out from the mounting side, the frame fixing module includes a connecting plate 2 and a frame mounting structure 3, one side of the connecting plate 2 is fixedly connected to the frame mounting structure 3, and the second positioning structure includes a plurality of first plug holes 21, each of which is provided on the connecting plate 2, and the positions of each first plug hole 21 and each first pin 11 correspond one to one. When replacing the tooling, the plurality of first pins 11 are respectively inserted into the corresponding first plug holes 21, so that the preset rotating shaft can be made to coincide with the rotation axis of the rotary positioner 5, which is simple and convenient. Among them, the connecting member is preferably a rectangular plate, the number of the first sockets 21 and the first pins 11 is the same, and the first pins 11 are preferably provided with 4. The arrangement of the first sockets 21 and the first pins 11 can be set as needed. For example, it can be set that the first sockets 21 are arranged in sequence along a circle, and the center of the circle is located on the rotation axis of the rotary positioner 5. The position of each first pin 11 corresponds to the position of each first socket 21 one by one.

[0029] In a preferred implementation of this embodiment, the first positioning structure further includes a positioning portion 12, which is fixedly connected to the installation side of the positioning member 1, and the center of the positioning portion 12 is located on the rotation axis of the rotary positioner 5. The second positioning structure further includes a positioning hole 22, which is provided on the connecting plate 2, and the positioning hole 22 corresponds to the positioning portion 12 in position and matches in shape. The positioning portion 12 can improve the reliability of the connection between the positioning member 1 and the connecting plate 2.

[0030] In a preferred embodiment of the first embodiment, both the first jack 21 and the positioning hole 22 are through holes, and the first pin 11 is a screw rod. The first pin 11 can pass through the first jack 21 and extend from the side of the connecting plate 2 away from the positioning member 1. At this time, only need to screw the nut on the first pin 11 to complete the installation and fixation of the vehicle frame fixing module, and the installation is more convenient. In addition, in order to improve the reliability of the connection between the connecting plate 2 and the positioning member 1, bolt holes 23 corresponding in position can be respectively provided on the connecting plate 2 and the positioning member 1, and bolts can be inserted.

[0031] In a preferred embodiment of the first embodiment, one end of the positioning portion 12 away from the positioning member 1 is the first end 121, and the end of each first pin 11 away from the positioning member 1 is the second end 111. The distance from the first end 121 to the installation side is greater than the distance from the second end 111 to the installation side. The positioning portion 12 is a cylindrical structure. A part of the positioning portion 12 close to the first end 121 is the auxiliary installation portion 122. One end of the auxiliary installation portion 122 close to the positioning member 1 is the third end 123. The auxiliary installation portion 122 gradually approaches the rotation axis of the rotary positioner 5 from the third end 123 to the first end 121. Since the auxiliary installation portion 122 gradually approaches the rotation axis of the rotary positioner 5 from the third end 123 to the first end 121, an annular inclined surface can be formed on the auxiliary installation portion 122. When the staff installs, the edge of the positioning hole 22 can be first contacted with the first end 121, then the auxiliary installation portion 122 is slid into the positioning hole 22, and then the whole positioning portion 12 enters the positioning hole 22. Finally, the position is adjusted, and the first pin 11 is inserted into the first jack 21 to complete the replacement of the tooling. The setting of the auxiliary installation portion 122 can further improve the convenience during the replacement of the tooling.

[0032] In a preferred embodiment of the first embodiment, the first positioning structure further includes a plurality of second pins 13. The second pins 13 are fixedly arranged on the installation side. The second positioning structure further includes a plurality of second jacks. Each second jack is arranged on the connecting plate 2. The positions of each second jack and each second pin 13 correspond one by one. The end of each second pin 13 away from the positioning member 1 is the fourth end 131. The distance from the fourth end 131 to the installation side is less than the distance from the second end 111 to the installation side. When the first pin 11 is inserted into the first jack 21 and the positioning portion 12 is inserted into the positioning hole 22, by continuing to push the connecting plate 2 towards the installation side, the second pins 13 can be inserted into the second jacks, thereby further improving the stability after the connection between the connecting plate 2 and the positioning member 1.

[0033] In a preferred implementation of this embodiment, the frame mounting structure 3 includes a bracket 31, a control device and a plurality of clamping components, the plurality of clamping components are arranged on the connecting plate 2 and / or the bracket 31, each clamping component is used to clamp and fix the frame 4, the control device is connected to each clamping component by signal, and the control device can control each clamping component to perform clamping or releasing actions simultaneously or separately. Most of the current clamping structures are manual clamps, which are laborious and time-consuming for the staff to operate. Using a control device to realize automated production can reduce the labor intensity of the staff and improve work efficiency.

[0034] In a preferred implementation manner of the present embodiment, the clamping assembly includes a lateral clamping device 32, a clamping device 33 and a frame head fixing device 34. The lateral clamping device 32 includes two first cylinders 321, which are arranged on both sides of the bracket 31, and the piston rods of the two first cylinders 321 are arranged opposite to each other; the clamping device 33 includes a second cylinder 331 and a clamping portion 332, the second cylinder 331 is installed on one side of the bracket 31, the bracket 31 has a working surface for setting the frame 4, the piston rod of the second cylinder 331 is perpendicular to the working surface, and the clamping portion 332 is rotatably connected to the piston rod of the second cylinder around a rotating shaft parallel to the axial direction of the piston rod; the frame head fixing device 34 includes a support member 342 and a third cylinder 341, the support member 342 is fixedly arranged on the side of the connecting plate 2 away from the positioning member 1, the third cylinder 341 is installed on the support member 342, the support member 342 has a supporting surface, and the piston rod of the third cylinder 341 is arranged opposite to the supporting surface. When the frame 4 is in a state where the seat part is on the top and the bottom tube is on the bottom, the piston rods of the two first cylinders 321 can clamp the frame 4 from both sides in the horizontal direction, and the pressing part 332 on the second cylinder 331 can rotate to the top of the bottom tube and move down with the piston rod and press the bottom tube in the vertical direction; the third cylinder 341 and the support surface are located in the axial direction of the head of the frame 4, and the third cylinder 341 can press the two ends of the head of the frame 4 to fix the head of the frame 4. By setting the lateral clamping device 32, the pressing device 33 and the frame head fixing device 34, the stability of the frame 4 when installed on the frame repair welding tool can be improved, thereby preventing the frame 4 from shifting and causing errors during welding. Among them, the piston rods of the first cylinder 321 and the third cylinder 341 are both provided with pressure plates; the control device can control the operation of each cylinder by controlling the control valve of each cylinder.

[0035] It should be noted that, in addition to the air cylinder, the frame repair welding tool provided by the utility model can also use other linear execution structures such as hydraulic cylinders to replace the air cylinder.

[0036] In a preferred embodiment of the first embodiment, the pressing part 332 is rod-shaped, and one end of the pressing part 332 is rotatably connected to the piston rod of the second cylinder around a rotating shaft parallel to the axial direction of the piston rod of the second cylinder 331. The pressing device 33 on the current welding repair fixture includes a fixing part and a rotating rod. The fixing part is arranged on one side of the bracket 31, and one end of the rotating rod is rotatably connected to the fixing part around a horizontal rotating shaft. When the frame 4 is in a state where the seat part is on the top and the bottom tube is on the bottom, and it is necessary to press the frame 4, the rotating rod rotates 90° and presses on the bottom tube of the frame 4. When it is necessary to remove the frame 4, the rotating rod needs to rotate 90° in the reverse direction to be in a vertical state. The vertical rotating rod will occupy the vertical space and hinder the movement of the frame 4. However, after the rod-shaped pressing part 332 is provided in the frame welding repair tool of the present utility model, the pressing part 332 can rotate in the horizontal direction, thereby reducing the occupied vertical space and facilitating the removal of the frame 4 from the tooling.

[0037] Specific examples are used in the present utility model to elaborate on the principle and implementation mode of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model; at the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation mode and application scope. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. A frame repair welding tooling, comprising: A frame fixing module, which is used to install a frame. When performing repair welding, the frame fixing module can rotate around a preset rotating shaft under the drive of a rotary positioner. It is characterized in that it also includes a positioning member, which is used to be installed on the working end of the rotary positioner. A first positioning structure is provided on the positioning member, and the first positioning structure protrudes from the side of the positioning member. A second positioning structure that cooperates with the first positioning structure is provided on the frame fixing module, and the second positioning structure is a hole-shaped structure or a groove-shaped structure. The first positioning structure can be inserted into the second positioning structure and make the preset rotating shaft coincide with the rotation axis of the rotary positioner.

2. The frame repair welding tooling according to claim 1, wherein: The positioning member is a plate-shaped structure, one side of the positioning member is used to be installed on the working end of the rotary positioner, and the other side is a mounting side, and the first positioning structure protrudes from the mounting side of the positioning member.

3. The frame repair welding tooling according to claim 2, wherein: The first positioning structure includes a plurality of first pins, and the positioning member is provided with a plurality of mounting holes, the first pins extend into the mounting holes from a side of the positioning member away from the mounting side and extend out from the mounting side, the frame fixing module includes a connecting plate and a frame mounting structure, one side of the connecting plate is fixedly connected to the frame mounting structure, and the second positioning structure includes a plurality of first plugging holes, each of which is provided on the connecting plate, and the positions of each of the first plugging holes and each of the first pins correspond one to one.

4. The frame repair welding tooling according to claim 3, characterized in that: The first positioning structure also includes a positioning portion, which is fixedly connected to the installation side of the positioning member, and the center of the positioning portion is located on the rotation axis of the rotary positioner. The second positioning structure also includes a positioning hole, which is arranged on the connecting plate, and the positioning hole corresponds to the position of the positioning portion and matches the shape.

5. The frame repair welding tooling according to claim 4, wherein: The first insertion hole and the positioning hole are both through holes, and the first latch is a screw.

6. The frame repair welding tooling according to claim 5, wherein: The end of the positioning portion away from the positioning member is the first end, the ends of each of the first pins away from the positioning member are the second ends, the distance from the first end to the installation side is greater than the distance from the second end to the installation side, the positioning portion is a cylindrical structure, a part of the positioning portion close to the first end is an auxiliary installation portion, the end of the auxiliary installation portion close to the positioning member is the third end, and the auxiliary installation portion gradually approaches the rotation axis of the rotary positioner from the third end to the first end.

7. The frame repair welding tooling according to claim 6, characterized in that: The first positioning structure also includes a plurality of second pins, which are fixedly arranged on the installation side. The second positioning structure also includes a plurality of second sockets, each of which is arranged on the connecting plate. The positions of each of the second sockets correspond one-to-one to those of each of the second pins. The end of each of the second pins away from the positioning member is a fourth end, and the distance from the fourth end to the installation side is smaller than the distance from the second end to the installation side.

8. The frame repair welding tooling according to claim 3, characterized in that: The frame mounting structure includes a bracket, a control device and multiple clamping components, multiple clamping components are arranged on the connecting plate and / or the bracket, each clamping component is used to clamp and fix the frame, the control device is signal-connected to each clamping component respectively, and the control device can control each clamping component to perform clamping or releasing actions simultaneously or separately.

9. The frame repair welding tooling according to claim 8, wherein: The clamping assembly includes a lateral clamping device, a pressing device and a frame head positioning device, the lateral clamping device includes two first cylinders, the two first cylinders are arranged on both sides of the bracket, and the piston rods of the two first cylinders are arranged opposite to each other; the pressing device includes a second cylinder and a pressing part, the second cylinder is installed on one side of the bracket, the bracket has a working surface for setting the frame, the piston rod of the second cylinder is perpendicular to the working surface, and the pressing part is rotatably connected to the piston rod of the second cylinder around a rotating shaft parallel to the axial direction of the piston rod; the frame head positioning device includes a support member and a third cylinder, the support member is fixedly arranged on a side of the connecting plate away from the positioning member, the third cylinder is installed on the support member, the support member has a supporting surface, and the piston rod of the third cylinder is arranged opposite to the supporting surface.

10. The frame repair welding tooling according to claim 9, characterized in that: The clamping part is rod-shaped, and one end of the clamping part is rotatably connected to the piston rod of the second cylinder around a rotating shaft parallel to the axial direction of the piston rod of the second cylinder.

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