Welding fixture for automobile wheel cover assembly

Abstract

The utility model discloses a welding fixture for an automobile wheel cover assembly. Comprising a first clamping device, a second clamping device and a third clamping device, wherein the first clamping device is used for clamping a wheel cover outer shell and positioning the wheel cover outer shell; the second clamping device is used for clamping an outer connecting plate and positioning the outer connecting plate; the main positioning device is movably arranged and used for positioning a top plate of the wheel cover, the fourth clamping device is used for applying pressure to an outer shell of the wheel cover, the third clamping device is arranged on the main positioning device, and the second clamping device and the fourth clamping device are oppositely arranged. According to the welding clamp for the automobile wheel cover assembly, the clamping devices and the positioning devices are matched to jointly clamp all parts of the automobile wheel cover assembly, it is guaranteed that all the parts are positioned accurately, the clamping efficiency is improved, and the product quality of the welded automobile wheel cover assembly is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of clamps, and specifically relates to a welding clamp for an automobile wheel cover assembly. Background Art

[0002] A new type of automobile wheel cover assembly is currently available, which is mainly composed of a wheel cover outer shell, an outer connecting plate connected to the wheel cover outer shell, and a wheel cover top plate, wherein the outer connecting plate is located outside the wheel cover outer shell, and the wheel cover top plate is located at one end of the wheel cover outer shell. The wheel cover top plate and the outer connecting plate are welded to the wheel cover outer shell, and the various components constituting the automobile wheel cover assembly need to be clamped by a welding fixture during welding, and one end of the wheel cover outer shell is clamped between the outer connecting plate and the wheel cover top plate.

[0003] The existing wheel cover assembly welding fixture cannot realize the accurate positioning of the various components constituting the above-mentioned novel automobile wheel cover assembly, which affects the quality of the product after welding and has low production efficiency.

[0004] For example, the patent document with the authorization announcement number CN215699208U discloses a welding fixture for an automobile wheel cover assembly, including a first clamping device and a second clamping device for clamping the wheel cover outer shell, a third clamping device matched with the second clamping device and used to clamp the wheel cover top plate, a fourth clamping device for clamping the reinforcing beam, a first positioning device for positioning the wheel cover outer shell, and a second positioning device for positioning the reinforcing beam, and the second clamping device and the third clamping device are arranged relative to each other. The technical solution disclosed in the patent document also cannot solve the technical problems described above. Utility Model Content

[0005] The utility model provides a welding fixture for an automobile wheel cover assembly, aiming at improving the product quality of the automobile wheel cover assembly after welding.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a welding fixture for an automobile wheel cover assembly, comprising a first clamping device for clamping and positioning the wheel cover outer shell, a second clamping device for clamping and positioning the outer connecting plate, a third clamping device for clamping the wheel cover top plate, a main positioning device movably arranged and used to position the wheel cover top plate, and a fourth clamping device for applying pressure to the wheel cover outer shell, the third clamping device is arranged on the main positioning device, and the second clamping device and the fourth clamping device are arranged relatively.

[0007] The first clamping device includes a first clamping bracket, a first clamping arm, a first driver arranged on the first clamping bracket and used to control the rotation of the first clamping arm, a first upper clamping block arranged on the first clamping arm, and a first lower clamping block arranged on the first clamping bracket and cooperating with the first upper clamping block to clamp the wheel cover outer shell. Multiple first upper clamping blocks and multiple first lower clamping blocks are provided.

[0008] The first clamping bracket is provided with a first positioning pin for positioning the wheel cover outer shell, and two first positioning pins are provided.

[0009] The second clamping device includes a second clamping bracket, a second clamping arm, a second driver arranged on the second clamping bracket and used to control the second clamping arm to rotate, a second upper clamping block arranged on the second clamping arm, a first driving mechanism arranged on the second clamping bracket, and a second lower clamping block connected to the first driving mechanism and cooperating with the second upper clamping block to clamp the outer connecting plate. A plurality of second upper clamping blocks and second lower clamping blocks are provided, and a first pressure block is provided on the second upper clamping block for applying pressure to the outer connecting plate to make it fit with the outer shell of the wheel cover.

[0010] The second clamping device also includes a second positioning pin disposed on the first driving mechanism for positioning the external connecting plate.

[0011] The second clamping device also includes a first auxiliary clamping block arranged on the second clamping arm and a second auxiliary clamping block cooperating with the first auxiliary clamping block to clamp the lower end of the outer connecting plate, and the second auxiliary clamping block is located below the wheel cover outer shell.

[0012] The third clamping device includes a third clamping bracket, a third clamping arm, a third driver arranged on the third clamping bracket and used to control the third clamping arm to rotate, a third upper clamping block arranged on the third clamping arm, and a third lower clamping block arranged on the third clamping bracket and cooperating with the third upper clamping block to clamp the wheel cover top plate. The third clamping bracket is arranged on the main positioning device.

[0013] The fourth clamping device includes a fourth clamping bracket, a fourth clamping arm, a fourth driver arranged on the fourth clamping bracket and used for controlling the fourth clamping arm to rotate, and a second pressing block arranged on the fourth clamping arm.

[0014] The main positioning device includes a main positioning pin and a secondary positioning pin for positioning the wheel cover top plate. One main positioning pin is provided, and a plurality of secondary positioning pins are provided.

[0015] The main positioning device is connected to the second driving mechanism.

[0016] The automobile wheel cover assembly welding fixture of the utility model clamps various components of the automobile wheel cover assembly by cooperating with a plurality of clamping devices and positioning devices, thereby ensuring accurate positioning of various components, improving clamping efficiency, and improving product quality of the automobile wheel cover assembly after welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] This specification includes the following drawings, which show the following contents:

[0018] Figure 1 It is a structural schematic diagram of the welding fixture of the automobile wheel cover assembly of the utility model;

[0019] Figure 2 This is a schematic diagram of the use state of the welding fixture of the automobile wheel cover assembly of the utility model;

[0020] Figure 3 It is a structural schematic diagram of a wheel cover assembly of an automobile;

[0021] Figure 4 is a schematic structural diagram of a first clamping device;

[0022] Figure 5 is a schematic structural diagram of a second clamping device;

[0023] Figure 6 It is a schematic diagram of the structure of the main positioning device and the third clamping device;

[0024] Figure 7 is a schematic structural diagram of a fourth clamping device;

[0025] The markings in the figure are: 1, first clamping bracket; 2, first clamping arm; 3, first driver; 4, first upper clamping block; 5, first lower clamping block; 6, first positioning pin; 7, second clamping bracket; 8, first auxiliary clamping block; 9, second auxiliary clamping block; 10, second clamping arm; 11, second driver; 12, second upper clamping block; 13, first pressing block; 14, second lower clamping block; 15, mounting seat; 16, third clamping bracket; 17, third clamping arm; 18 , third driver; 19, third lower clamping block; 20, third upper clamping block; 21, main locating pin; 22, auxiliary locating pin; 23, main slide; 24, second cylinder; 25, third cylinder; 26, auxiliary slide; 27, fourth clamping bracket; 28, fourth clamping arm; 29, fourth driver; 30, second pressure block; 31, fourth cylinder; 32, second locating pin; 33, base; 34, wheel cover outer shell; 35, wheel cover top plate; 36, external connecting plate. DETAILED DESCRIPTION

[0026] The specific implementation methods of the utility model are further explained in detail below with reference to the accompanying drawings through the description of embodiments, with the aim of helping technicians in the field to have a more complete, accurate and in-depth understanding of the concept and technical solution of the utility model and facilitating its implementation.

[0027] like Figures 1 to 7 As shown, the utility model provides a welding fixture for an automobile wheel cover assembly, comprising a first clamping device for clamping and positioning a wheel cover outer shell, a second clamping device for clamping and positioning an outer connecting plate, a third clamping device for clamping a wheel cover top plate, a main positioning device movably arranged and used to position the wheel cover top plate, and a fourth clamping device for applying pressure to the wheel cover outer shell, the third clamping device is arranged on the main positioning device, and the second clamping device and the fourth clamping device are arranged relatively.

[0028] Specifically, if Figure 3 As shown, the automobile wheel cover assembly is mainly composed of a wheel cover outer shell, an outer connecting plate and a wheel cover top plate connected to the wheel cover outer shell, the outer connecting plate is located outside the wheel cover outer shell, the wheel cover top plate is located at one end of the wheel cover outer shell, one end of the wheel cover outer shell is clamped between the outer connecting plate and the wheel cover top plate, the wheel cover outer shell is welded to the wheel cover top plate and the outer connecting plate, the wheel cover outer shell is a U-shaped structure, the wheel cover top plate and the outer connecting plate are located at one end of the wheel cover outer shell in the length direction, the wheel cover top plate is used to close the opening of the wheel cover outer shell at this end, and the outer connecting plate extends out toward the outside of the wheel cover outer shell.

[0029] like Figure 1 and Figure 2 As shown, the base 33 is horizontally arranged, and the base 33 has a certain width and length. The length direction of the base 33 is parallel to the first direction, and the width direction of the base 33 is parallel to the second direction. The first direction and the second direction are both horizontal directions and the first direction and the second direction are perpendicular to each other. The first clamping device, the second clamping device, the third clamping device and the main positioning device are arranged on the base 33, and the first clamping device and the main positioning device are on the same straight line parallel to the second direction, and the second clamping device and the fourth clamping device are on the same straight line parallel to the first direction.

[0030] like Figures 1 to 4As shown, the first clamping device includes a first clamping bracket 1, a first clamping arm 2, a first driver 3 arranged on the first clamping bracket 1 and used to control the first clamping arm 2 to rotate up and down, a first upper clamping block 4 arranged on the first clamping arm 2, and a first lower clamping block 5 arranged on the first clamping bracket 1 and cooperating with the first upper clamping block 4 to clamp the outer shell of the wheel cover, and the rotation center line of the first clamping arm 2 is parallel to the first direction. The first clamping bracket 1 is vertically arranged on the base 33, and the lower end of the first clamping bracket 1 is fixedly connected to the base 33. The first driver 3 is arranged on the first clamping bracket 1, and the first driver 3 is used to control the first clamping arm 2 to rotate up and down. The first driver 3 is a cylinder. The first upper clamping block 4 is fixedly arranged on the first clamping arm 2, and the first upper clamping block 4 is used to contact the outer shell of the wheel cover. The first lower clamping block 5 is fixedly arranged on the first clamping bracket 1, and the first lower clamping block 5 is used to contact the outer shell of the wheel cover. In the clamped state, the wheel cover outer shell is in a horizontal state, the length direction of the wheel cover outer shell is parallel to the second direction, the first upper clamp block 4 is located in the inner cavity of the wheel cover outer shell and is used to apply downward pressure to the wheel cover outer shell, the first lower clamp block 5 is located below the wheel cover outer shell and the first lower clamp block 5 contacts the bottom surface of the wheel cover outer shell, so that the first upper clamp block 4 and the first lower clamp block 5 cooperate to clamp one end of the wheel cover outer shell. A plurality of first upper clamp blocks 4 and first lower clamp blocks 5 are provided, each of which is distributed at different positions, and each first upper clamp block 4 cooperates with a first lower clamp block 5 respectively.

[0031] like Figures 1 to 4 As shown, the first clamping bracket 1 is provided with a first positioning pin 6 for positioning the wheel cover outer shell, two first positioning pins 6 are provided, the first positioning pins 6 are vertically arranged, the two first positioning pins 6 are located on the same straight line parallel to the second direction, and a positioning hole for inserting the first positioning pin 6 is provided on the wheel cover outer shell to ensure the accurate position of the wheel cover outer shell.

[0032] like Figures 1 to 3 and Figure 5As shown, the second clamping device includes a second clamping bracket 7, a second clamping arm 10, a second driver 11 disposed on the second clamping bracket 7 and used to control the second clamping arm 10 to rotate up and down, a second upper clamping block 12 disposed on the second clamping arm 10, a second driving mechanism disposed on the second clamping bracket 7, and a second lower clamping block 14 connected to the second driving mechanism and cooperating with the second upper clamping block 12 to clamp the outer connecting plate, and the rotation center line of the second clamping arm 10 is a vertical line. The second clamping bracket 7 is vertically disposed on the base 33, and the lower end of the second clamping bracket 7 is fixedly connected to the base 33. The second driver 11 is disposed on the second clamping bracket 7, and the second driver 11 is used to control the second clamping arm 10 to rotate. The second driver 11 is a cylinder, and the second upper clamping block 12 is fixedly disposed on the second clamping arm 10, and the second upper clamping block 12 is used to contact the outer connecting plate. The second lower clamp block 14 is fixedly arranged on the first driving mechanism, and the first driving mechanism is used to control the second lower clamp block 14 to move linearly along the second direction, so that the second lower clamp block 14 contacts or separates from the outer connecting plate. In the clamped state, the outer connecting plate is in a vertical state, and the upper end of the outer connecting plate is flush with the upper end of the wheel cover top plate. The second upper clamp block 12 and the second upper clamp block 12 are respectively located on both sides of the outer connecting plate, and the second upper clamp block 12 and the second upper clamp block 12 are respectively in contact with the two opposite outer surfaces of the outer connecting plate, and the second upper clamp block 12 and the second lower clamp block 14 cooperate to clamp the outer connecting plate. A plurality of second upper clamp blocks 12 and second lower clamp blocks 14 are provided, and each second upper clamp block 12 cooperates with a second lower clamp block 14, and all second upper clamp blocks 12 are arranged in sequence along the vertical direction and distributed at different positions. The second upper clamping block 12 is provided with a first pressing block 13 for applying force to the external connecting plate to make it fit with the wheel cover outer shell. The first pressing block 13 applies a force along a first direction to the external connecting plate to press the external connecting plate onto the wheel cover outer shell, thereby clamping the end edge of the wheel cover outer shell between the external connecting plate and the wheel cover top plate.

[0033] like Figures 1 to 3 and Figure 5 As shown, the second clamping device also includes a second locating pin 32 disposed on the first driving mechanism for locating the external connection plate, the axis of the second locating pin 32 is parallel to the second direction, and a locating hole for inserting the second locating pin 32 is disposed on the external connection plate. The first driving mechanism includes a first cylinder disposed on the second clamping bracket 7 and a mounting seat 15 connected to the first cylinder, the second lower clamping block 14 and the second locating pin 32 are fixedly disposed on the mounting seat 15, the second locating pin 32 is located above the second lower clamping block 14, and the rotation center line of the second clamping arm 10 is located below the mounting seat 15. The mounting seat 15 is fixedly connected to the piston rod of the first cylinder, and through the extension and retraction of the first cylinder, the mounting seat 15 and the second lower clamping block 14 and the second locating pin 32 thereon are linearly moved in the horizontal direction to achieve contact and separation with the external connection plate.

[0034] like Figures 1 to 3 and Figure 5 As shown, the second clamping device also includes a first auxiliary clamping block 8 arranged on the second clamping arm 10 and a second auxiliary clamping block 9 that cooperates with the first auxiliary clamping block 8 to clamp the lower end of the outer connecting plate, and the second auxiliary clamping block 9 is located below the outer shell of the wheel cover. The first auxiliary clamping block 8 is located below the second upper clamping block 12, and the second auxiliary clamping block 9 is fixedly arranged on the first clamping bracket 1. Through the cooperation of the first auxiliary clamping block 8 and the second auxiliary clamping block 9, and the cooperation of the second upper clamping block 12 and the second lower clamping block 14, the clamping and fixing of the outer connecting plate is achieved, which helps to improve the quality of the product after welding. The first driving mechanism and the main positioning device are located on the same side of the outer connecting plate.

[0035] In this embodiment, two second upper clamping blocks 12 and two second lower clamping blocks 14 are provided.

[0036] like Figures 1 to 3 and Figure 6 As shown, the third clamping device includes a third clamping bracket 16, a third clamping arm 17, a third driver 18 disposed on the third clamping bracket 16 and used to control the third clamping arm 17 to rotate, a third upper clamping block 20 disposed on the third clamping arm 17, and a third lower clamping block 19 disposed on the third clamping bracket 16 and cooperating with the third upper clamping block 20 to clamp the top plate of the wheel housing. The third clamping bracket 16 is disposed on the main positioning device, and the rotation center line of the third clamping arm 17 is parallel to the first direction. The third clamping bracket 16 is vertically disposed on the main positioning device, the third driver 18 is disposed on the third clamping bracket 16, the third driver 18 is used to control the third clamping arm 17 to rotate up and down, the third driver 18 is a cylinder, the third upper clamping block 20 is fixedly disposed on the third clamping arm 17, and the third upper clamping block 20 is used to contact the top plate of the wheel housing. The third lower clamping block 19 is fixedly disposed on the third clamping bracket 16, and the third lower clamping block 19 is used to contact the top plate of the wheel housing. When in the clamped state, the wheel arch top plate is in a vertical state, the third upper clamp block 20 is located in the inner cavity of the wheel arch top plate and is used to apply upward pressure to the wheel arch top plate, the third lower clamp block 19 is located above the top surface of the wheel arch top plate and the third lower clamp block 19 is in contact with the top surface of the wheel arch top plate, so that the third upper clamp block 20 and the third lower clamp block 19 cooperate to clamp the upper end of the wheel arch top plate.

[0037] like Figures 1 to 3 and Figure 7As shown, the fourth clamping device includes a fourth clamping bracket 27, a fourth clamping arm 28, a fourth driver 29 disposed on the fourth clamping bracket 27 and used to control the fourth clamping arm 28 to rotate, and a second pressing block 30 disposed on the fourth clamping arm 28, and the rotation center line of the fourth clamping arm 28 is parallel to the second direction. The third clamping bracket 16 is vertically disposed on the base 33, the fourth driver 29 is disposed on the fourth clamping bracket 27, the fourth driver 29 is used to control the fourth clamping arm 28 to rotate up and down, the fourth driver 29 is a cylinder, and the second pressing block 30 is fixedly disposed on the fourth clamping arm 28, and the second pressing block 30 is used to contact the outer shell of the wheel cover. When in the clamped state, the second pressure block 30 is located outside the wheel cover outer shell, and the second pressure block 30 is in contact with the vertical outer surface of the end of the wheel cover outer shell. The second pressure block 30 applies a force along the first direction to the wheel cover outer shell, so that the wheel cover outer shell fits with the wheel cover top plate. The wheel cover outer shell and the outer connecting plate are located between the first pressure block 13 and the second pressure block 30, and the height of the first pressure block 13 and the second pressure block 30 is greater than the height of the first upper clamp 4.

[0038] like Figures 1 to 3 and Figure 6 As shown, the main positioning device includes a main positioning pin 21 and a secondary positioning pin 22 for positioning the wheel cover top plate, one main positioning pin 21 is provided, and multiple secondary positioning pins 22 are provided. The main positioning device is connected to the second driving mechanism. The main positioning pin 21 is fixedly connected to the piston rod of the second cylinder 24, the axes of the main positioning pin 21 and the secondary positioning pin 22 are parallel to the second direction, the secondary positioning pin 22 is fixedly connected to the secondary slide 26, and the secondary slide 26 is fixedly connected to the piston rod of the third cylinder 25. The diameter of the main positioning pin 21 is larger than the diameter of the secondary positioning pin 22. The center of the wheel cover top plate is provided with a main positioning hole for inserting the main positioning pin 21, and the other parts of the wheel cover top plate are provided with secondary positioning holes for inserting the secondary positioning pin 22. The second cylinder 24 is used to control the main positioning pin 21 to move linearly along the second direction, and the third cylinder 25 is used to control the secondary positioning pin 22 to move linearly along the second direction. The main positioning pin 21 and the secondary positioning pin 22 cooperate to achieve accurate positioning of the wheel cover top plate.

[0039] like Figures 1 to 3 and Figure 6 As shown, the second driving mechanism includes a main slide 23 and a fourth cylinder 31 for controlling the main slide 23 to move linearly, the fourth cylinder 31 is fixedly arranged on the base 33, the main slide 23 is fixedly connected to the piston rod of the fourth cylinder 31, and the third clamping bracket 16, the second cylinder 24 and the third cylinder 25 are fixedly arranged on the main slide 23. Through the extension and retraction of the fourth cylinder 31, the horizontal linear movement of the main positioning device is realized, and the contact and separation of the main positioning device and the wheel house top plate are realized.

[0040] The above is an exemplary description of the utility model in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model; or the above concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. Automobile wheel cover assembly welding fixture, characterized by: It includes a first clamping device for clamping and positioning the wheel cover outer shell, a second clamping device for clamping and positioning the outer connecting plate, a third clamping device for clamping the wheel cover top plate, a main positioning device that is movably arranged and used to position the wheel cover top plate, and a fourth clamping device for applying pressure to the wheel cover outer shell, the third clamping device is arranged on the main positioning device, and the second clamping device and the fourth clamping device are arranged relatively.

2. The automobile wheel cover assembly welding fixture according to claim 1 is characterized in that: The first clamping device includes a first clamping bracket, a first clamping arm, a first driver arranged on the first clamping bracket and used to control the rotation of the first clamping arm, a first upper clamping block arranged on the first clamping arm, and a first lower clamping block arranged on the first clamping bracket and cooperating with the first upper clamping block to clamp the wheel cover outer shell. Multiple first upper clamping blocks and multiple first lower clamping blocks are provided.

3. The automobile wheel cover assembly welding fixture according to claim 2 is characterized in that: The first clamping bracket is provided with a first positioning pin for positioning the wheel cover outer shell, and two first positioning pins are provided.

4. The automobile wheel cover assembly welding fixture according to any one of claims 1 to 3, characterized in that: The second clamping device includes a second clamping bracket, a second clamping arm, a second driver arranged on the second clamping bracket and used to control the second clamping arm to rotate, a second upper clamping block arranged on the second clamping arm, a first driving mechanism arranged on the second clamping bracket, and a second lower clamping block connected to the first driving mechanism and cooperating with the second upper clamping block to clamp the outer connecting plate. A plurality of second upper clamping blocks and second lower clamping blocks are provided, and a first pressure block is provided on the second upper clamping block for applying pressure to the outer connecting plate to make it fit with the outer shell of the wheel cover.

5. The automobile wheel cover assembly welding fixture according to claim 4 is characterized in that: The second clamping device also includes a second positioning pin disposed on the first driving mechanism for positioning the external connecting plate.

6. The automobile wheel cover assembly welding fixture according to claim 4 is characterized in that: The second clamping device also includes a first auxiliary clamping block arranged on the second clamping arm and a second auxiliary clamping block cooperating with the first auxiliary clamping block to clamp the lower end of the outer connecting plate, and the second auxiliary clamping block is located below the wheel cover outer shell.

7. The automobile wheel cover assembly welding fixture according to any one of claims 1 to 3, characterized in that: The third clamping device includes a third clamping bracket, a third clamping arm, a third driver arranged on the third clamping bracket and used to control the third clamping arm to rotate, a third upper clamping block arranged on the third clamping arm, and a third lower clamping block arranged on the third clamping bracket and cooperating with the third upper clamping block to clamp the wheel cover top plate. The third clamping bracket is arranged on the main positioning device.

8. The automobile wheel cover assembly welding fixture according to any one of claims 1 to 3, characterized in that: The fourth clamping device includes a fourth clamping bracket, a fourth clamping arm, a fourth driver arranged on the fourth clamping bracket and used for controlling the fourth clamping arm to rotate, and a second pressing block arranged on the fourth clamping arm.

9. The automobile wheel cover assembly welding fixture according to any one of claims 1 to 3, characterized in that: The main positioning device includes a main positioning pin and a secondary positioning pin for positioning the wheel cover top plate. One main positioning pin is provided, and a plurality of secondary positioning pins are provided.

10. The automobile wheel cover assembly welding fixture according to claim 9, characterized in that: The main positioning device is connected to the second driving mechanism.

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