Anti-deformation clamp device in automobile welding process

Abstract

The utility model relates to the technical field of clamp devices, in particular to an anti-deformation clamp device in the automobile welding process. According to the technical scheme, the device comprises a bottom plate and further comprises mounting columns, the mounting columns are symmetrically and slidably mounted on the bottom plate, a mounting block is fixedly mounted on one side of each mounting column, a mounting cavity is formed in one end of each mounting block, a plurality of clamping blocks are slidably mounted on each mounting cavity at equal intervals, and a placement plate is fixedly mounted on the bottom plate; and a control mechanism for restraining and controlling the clamping force of each clamping block is arranged on the bottom plate. By means of the clamping device, clamping of irregular-face parts is achieved, it is guaranteed that the pressure of each clamping part is the same, deformation of the parts is avoided, and machining efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of clamping device technology, and in particular to an anti-deformation clamping device in the automotive welding process. Background Technology

[0002] In automobile manufacturing, many components require extremely high dimensional accuracy. For example, the car frame, which forms the skeleton of the vehicle, directly affects the assembly quality of the entire frame through the precise positioning of its various components. Welding fixtures can accurately position the workpieces, ensuring that each component is in the correct position during welding.

[0003] Since automotive parts are not flat planes, when clamping irregular parts, the contact between the clamp and the surface of the part is usually insufficient and uneven. For example, for an automotive part with a complex curved surface, the clamp may only be able to contact and apply pressure in some protruding parts or relatively flat areas. In this case, the material of the part will undergo large deformation in the high-pressure area, causing damage to the part and affecting normal welding. Therefore, this application proposes an anti-deformation clamp device for automotive welding process.

[0004] content

[0005] The purpose of this invention is to address the problem in the prior art that irregular parts are easily damaged when being welded and clamped, and to propose an anti-deformation clamping device for automobile welding process.

[0006] The technical solution of this utility model: an anti-deformation clamping device for automobile welding, including a base plate, and further comprising:

[0007] Mounting columns are symmetrically and slidably mounted on a base plate. A mounting block is fixedly mounted on one side of each mounting column. A mounting cavity is mounted on one end of each mounting block. Multiple clamping blocks are slidably mounted at equal intervals on the mounting cavity. A placement plate is fixedly mounted on the base plate. A control mechanism is provided on the base plate to constrain and control the clamping force of each clamping block.

[0008] A cooling mechanism, which is mounted on the base plate, is used to dissipate heat evenly from the welded components.

[0009] Optionally, the control mechanism includes a pressure sensor fixedly installed at one end of the clamping block, multiple equally spaced electric telescopic rods fixedly installed in the mounting cavity, a controller installed inside the electric telescopic rod, a connecting block fixedly installed at one end of the electric telescopic rod, one end of the connecting block fixedly connected to the clamping block, the output end of the pressure sensor connected to the input end of the controller, a reset mechanism fixedly installed on one side of the mounting column, and the output ends of the controller and the reset mechanism connected to the input end of the motor driver inside the electric telescopic rod.

[0010] Optionally, the cooling mechanism includes a support column fixedly installed on one side of the base plate, a track plate fixedly installed on the support column, a slider slidably installed on the track plate, a reciprocating screw rotatably installed on the track plate, the reciprocating screw being threadedly connected to the slider, a guide plate fixedly installed at one end of the slider, the guide plate being hollow, and a plurality of equally spaced through holes on one side of the guide plate; an air pump fixedly installed on one side of the support column, and a connecting pipe fixedly installed on one side of the air pump, one end of the connecting pipe communicating with the slider.

[0011] Optionally, a sliding groove is provided on the base plate, and a threaded rod is rotatably installed in the sliding groove. A first motor is fixedly installed on one side of the base plate, and the output shaft of the first motor is fixedly connected to the threaded rod. The mounting post is slidably connected to the sliding groove, and the mounting post is threadedly connected to the threaded rod.

[0012] Optionally, a second motor is fixedly installed at one end of the support column, and the output shaft of the second motor is fixedly connected to a reciprocating lead screw.

[0013] Optionally, the track plate is provided with guide grooves, and the two ends of the slider are located in the guide grooves.

[0014] Optionally, a spring is fixedly installed on one side of the connecting block, and one end of the spring is fixedly connected to the clamping block.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects:

[0016] This invention uses a first motor to move the mounting columns closer together, bringing the clamping blocks close to the component but not in contact with it. Then, an electric telescopic rod is activated to bring the clamping blocks into contact with the component. Simultaneously, a pressure sensor detects the pressure between the clamping blocks and the component. When the pressure reaches a threshold, the controller stops the electric telescopic rod until the pressure sensor at one end of the other clamping blocks detects that the pressure has reached the threshold. This achieves clamping of irregularly shaped objects, ensuring that the pressure at each clamping point is the same and preventing component deformation.

[0017] Furthermore, by starting the second motor to drive the reciprocating lead screw, the slider makes horizontal reciprocating motion on the track plate. In conjunction with starting the air pump, air is delivered into the guide plate and then discharged through the through holes on the guide plate, which fully cools the welded parts and improves processing efficiency and welding. Attached Figure Description

[0018] Figure 1 Provide a schematic diagram of the anti-deformation fixture device in the automotive welding process. Figure 1 ;

[0019] Figure 2 Provide a schematic diagram of the anti-deformation fixture device in the automotive welding process. Figure 2 ;

[0020] Figure 3 for Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0021] Reference numerals: 1. Base plate; 2. Mounting column; 3. Mounting block; 4. First motor; 5. Slide groove; 6. Threaded rod; 7. Mounting cavity; 8. Placement plate; 9. Air pump; 10. Connecting pipe; 11. Support column; 12. Track plate; 13. Reset mechanism; 14. Second motor; 15. Slider; 16. Guide plate; 17. Through hole; 18. Electric telescopic rod; 19. Connecting block; 20. Spring; 21. Pressure sensor; 22. Reciprocating lead screw; 23. Guide groove; 24. Clamping block. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0023] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0024] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example

[0029] like Figure 1 , Figure 2 As shown, the anti-deformation clamping device for automobile welding proposed in this utility model includes a base plate 1 and a mounting column 2. The mounting column 2 is symmetrically and slidably mounted on the base plate 1. A mounting block 3 is fixedly mounted on one side of the mounting column 2. A mounting cavity 7 is mounted on one end of the mounting block 3. Multiple clamping blocks 24 are slidably mounted at equal distances on the mounting cavity 7. A placement plate 8 is fixedly mounted on the base plate 1 for placing the parts to be welded. A control mechanism is provided on the base plate 1 to constrain and control the clamping force of each clamping block 24.

[0030] like Figure 3As shown, in this embodiment, the anti-deformation clamp device also includes a control mechanism. The control mechanism includes a pressure sensor 21 fixedly installed at one end of the clamping block 24. Multiple equidistantly arranged electric telescopic rods 18 are fixedly installed in the mounting cavity 7. A controller is installed inside each electric telescopic rod 18. A connecting block 19 is fixedly installed at one end of each electric telescopic rod 18, and one end of the connecting block 19 is fixedly connected to the clamping block 24. The output end of the pressure sensor 21 is connected to the input end of the controller. A reset mechanism 13 is fixedly installed on one side of the mounting column 2. The output ends of the controller and the reset mechanism 13 are connected to the input end of the motor driver inside the electric telescopic rod 18. When welding is required on the component on the placement plate 8, the mounting column 2 is moved so that the clamping blocks 24 on one side of the mounting column 2 move closer to each other, bringing them close to the component but not in contact with it. The electric... The electric telescopic rod 18 drives the connecting block 19 at one end to move. The connecting block 19 drives the clamping block 24 to contact the object. The pressure sensor 21 detects the pressure of the clamping block 24 on the component. When the set threshold is reached, the signal is transmitted to the controller inside the electric telescopic rod 18 at the threshold end. The controller controls the motor driver inside the electric telescopic rod 18 to stop running, stopping the clamping block 24 from squeezing the component. The other clamping blocks 24 are unaffected and continue to move normally until the pressure sensor 21 at one end reaches the threshold. This achieves control of the clamping pressure on the surface of the irregular workpiece, making the clamping pressure in each part the same and avoiding deformation of the component. After welding is completed, the reset mechanism 13 is activated to reset the stroke of all electric telescopic rods 18, which is convenient for clamping the component next time.

[0031] like Figures 1-3 As shown, the anti-deformation clamp device in this embodiment also includes a cooling mechanism. The cooling mechanism is set on the base plate 1 to uniformly dissipate heat from the welded parts. The cooling mechanism includes a support column 11 fixedly installed on one side of the base plate 1. A track plate 12 is fixedly installed on the support column 11. A slider 15 is slidably installed on the track plate 12. A reciprocating screw 22 is rotatably installed on the track plate 12. The reciprocating screw 22 is threadedly connected to the slider 15. A guide plate 16 is fixedly installed at one end of the slider 15. The guide plate 16 is hollow. A plurality of through holes 17 are arranged at equal intervals on one side of the guide plate 16. An air pump 9 is fixedly installed on one side of the support column 11. A connecting pipe 10 is fixedly installed on one side of the air pump 9. One end of the connecting pipe 10 is connected to the slider 15. After welding, the reciprocating screw 22 rotates, causing the slider 15 to perform horizontal reciprocating motion on the track plate 12. In conjunction with starting the air pump 9, external air is delivered into the guide plate 16 through the connecting pipe 10 and finally discharged through the through holes 17, thus fully cooling the welded parts.

[0032] like Figure 2 , Figure 3As shown, a sliding groove 5 is provided on the base plate 1, and a threaded rod 6 is rotatably installed in the sliding groove 5. A first motor 4 is fixedly installed on one side of the base plate 1, and the output shaft of the first motor 4 is fixedly connected to the threaded rod 6. The mounting column 2 is slidably connected to the sliding groove 5, and the mounting column 2 is threadedly connected to the threaded rod 6. A second motor 14 is fixedly installed at one end of the support column 11, and the output shaft of the second motor 14 is fixedly connected to the reciprocating lead screw 22. A guide groove 23 is provided on the track plate 12, and both ends of the slider 15 are located in the guide groove 23. A spring 20 is fixedly installed on one side of the connecting block 19, and one end of the spring 20 is fixedly connected to the clamping block 24.

[0033] The working principle of this embodiment is as follows: When welding is required on the component on the placement plate 8, the mounting column 2 is moved so that the clamping blocks 24 on one side of the mounting column 2 are close to each other, so that they are close to the component but not in contact with it. The electric telescopic rod 18 is activated, and the electric telescopic rod 18 drives the connecting block 19 at one end to move. The connecting block 19 drives the clamping block 24 to contact the object. The pressure sensor 21 detects the pressure of the clamping block 24 on the component. When the set threshold is reached, the signal is transmitted to the controller inside the electric telescopic rod 18 at the end that has reached the threshold. The controller controls the motor driver inside the electric telescopic rod 18 to stop running, stopping the clamping block 24 from contacting the component. During the compression, the other clamping blocks 24 remain unaffected and continue to move normally until the pressure sensor 21 at one end reaches the threshold. This controls the clamping pressure on the irregular workpiece surface, ensuring that the clamping pressure is the same at each part and preventing component deformation. After welding, the reciprocating screw 22 rotates, causing the slider 15 to reciprocate horizontally on the track plate 12. In conjunction with starting the air pump 9, external air is delivered into the guide plate 16 through the connecting pipe 10 and finally discharged through the through hole 17, providing sufficient cooling for the welded component. This achieves clamping of irregular components, ensuring that the pressure at each clamping point is the same, preventing component deformation, and improving processing efficiency.

[0034] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. Anti-deformation fixture device in the welding process of a car, comprising a base plate (1), characterized in that, Also include: The installation column (2) is symmetrically installed on the bottom plate (1), one side of the installation column (2) is fixedly installed with the installation block (3), one end of the installation block (3) is installed with the installation cavity (7), a plurality of clamping blocks (24) are installed on the installation cavity (7) at equal intervals, the bottom plate (1) is fixedly installed with the placing plate (8), and the control mechanism for restricting and controlling the clamping force of each clamping block (24) is arranged on the bottom plate (1). The cooling mechanism is arranged on the bottom plate (1) and is used for uniformly dissipating heat of the welded part.

2. The anti-distortion fixture device for automobile welding process according to claim 1, characterized in that, The control mechanism comprises a pressure sensor (21) fixedly installed at one end of the clamping block (24), a plurality of electric telescopic rods (18) fixedly installed in the installation cavity (7) at equal intervals, a controller arranged in the electric telescopic rod (18), a connecting block (19) fixedly installed at one end of the electric telescopic rod (18), and the connecting block (19) is fixedly connected with the clamping block (24), the output end of the pressure sensor (21) is connected with the input end of the controller, and the output ends of the controller and the reset mechanism (13) are connected with the input end of the motor driver in the electric telescopic rod (18).

3. The automotive welding deformation prevention fixture apparatus of claim 1, wherein, The cooling mechanism comprises a support column (11) fixedly installed on one side of the bottom plate (1), a track plate (12) fixedly installed on the support column (11), a sliding block (15) slidably installed on the track plate (12), a reciprocating screw rod (22) rotatably installed on the track plate (12), and the reciprocating screw rod (22) is in threaded connection with the sliding block (15). One end of the sliding block (15) is fixedly installed with a guide plate (16), the guide plate (16) is provided as a cavity, a plurality of through holes (17) are formed in the guide plate (16) at equal intervals, one side of the support column (11) is fixedly installed with an air pump (9), one side of the air pump (9) is fixedly installed with a connecting pipe (10), and one end of the connecting pipe (10) is in communication with the sliding block (15).

4. The automotive welding deformation prevention fixture apparatus of claim 1, wherein, A sliding groove (5) is formed in the bottom plate (1), a threaded rod (6) is rotatably installed in the sliding groove (5), a first motor (4) is fixedly installed on one side of the bottom plate (1), the output shaft of the first motor (4) is fixedly connected with the threaded rod (6), the installation column (2) is slidably connected with the sliding groove (5), and the installation column (2) is in threaded connection with the threaded rod (6).

5. The anti-distortion fixture device for automotive welding process according to claim 3, wherein, One end of the support column (11) is fixedly installed with a second motor (14), and the output shaft of the second motor (14) is fixedly connected with the reciprocating screw rod (22).

6. The anti-distortion fixture device for automotive welding process according to claim 3, wherein, A guide groove (23) is formed in the track plate (12), and both ends of the sliding block (15) are located in the guide groove (23).

7. The anti-distortion fixture device for automotive welding process according to claim 2, wherein, One side of the connecting block (19) is fixedly installed with a spring (20), and one end of the spring (20) is fixedly connected with the clamping block (24). One side of the connecting block (19) is fixedly installed with a spring (20), and one end of the spring (20) is fixedly connected with the clamping block (24).

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