Automobile part circumferential equidistance machining clamp

Abstract

A kind of automobile component equidistant processing fixture, the processing fixture technical field, for the positioning fixture when the circumferential processing of automobile tubular component, comprising: underframe, support assembly, support seat, dial, positioning block, pointer and first jackscrew, underframe is set to hollow rectangular body.The utility model discloses through the end of automobile tubular component configuration pointer, makes it synchronous circumferential rotation with automobile tubular component and accurately indicates rotation angle by the aid of scale on dial, can flexibly adapt to equidistant processing indication of different circumferential spacing parameters, satisfies actual application requirement;Because the automobile tubular component after positioning is concentric with dial, pointer can accurately rotate around the center of dial, avoid eccentric, guarantee the accuracy of rotation indication value;Two groups of angle steel and first roller are arranged at intervals and form rolling support to the bottom end of automobile tubular component, ensure that automobile tubular component can realize circumferential rotation under the driving of external force after positioning, complete circumferential equidistant processing in cooperation.

Description

Technical Field

[0001] This utility model belongs to the field of machining fixture technology, specifically relating to a circumferential equidistant machining fixture for automotive parts. Background Technology

[0002] Automobiles are composed of various parts, among which tubular components are widely used. During the machining of tubular components, positioning fixtures are required to precisely clamp and fix them in order to ensure machining accuracy and operational stability.

[0003] In related technology (Chinese patent with announcement number CN212147609U), a plastic pipe processing fixture is disclosed, including a base. Two sets of clamping assemblies are longitudinally symmetrically arranged on the upper surface of the base, and two sets of buffering assemblies are laterally symmetrically arranged on the upper surface of the base. Each clamping assembly includes a screw rod 1 and a screw rod 2 laterally symmetrically arranged on both sides of the upper surface of the base. Adjusting nut 1 and adjusting nut 2 are engaged on the screw rod 1. A positioning block is pressed and fixed between the adjusting nut 1 and adjusting nut 2. One end of the positioning block is hinged to an upper clamping plate. The buffering assembly includes a rotating shaft longitudinally mounted on the upper surface of the base via a support base. A buffer plate is fixed on the rotating shaft, and two sets of torsion springs are sleeved on the rotating shaft. One end of each torsion spring is fixed to the support base, and the other end is fixed to the buffer plate. This invention achieves the purpose of buffering and securing both sides of the plastic pipe, resulting in good pipe fixation and preventing pipe jumping or tilting, thus providing more stable clamping.

[0004] When performing circumferential equidistant machining on existing automotive tubular components, conventional fixtures can clamp and position the components. However, due to differences in machining requirements, the spacing parameters for circumferential equidistant machining of tubular components need to be adjusted accordingly. Conventional fixtures that only have clamping and positioning functions cannot adapt to circumferential equidistant machining instructions with different spacing parameters, making it difficult to meet actual usage needs. Utility Model Content

[0005] To address the problem that existing conventional fixtures, which only possess clamping and positioning functions, cannot adapt to circumferential equidistant machining instructions with different spacing parameters, thus failing to meet practical application needs, this utility model provides a circumferential equidistant machining fixture for automotive parts. This fixture can flexibly adapt to equidistant machining instructions with different circumferential spacing parameters according to actual production requirements, better meeting the needs of practical application scenarios. The specific technical solution is as follows:

[0006] A circumferential equidistant machining fixture for automotive parts, used for positioning fixtures during circumferential machining of automotive tubular parts, includes: a base frame, a support assembly, a support base, a dial, a positioning block, a pointer, and a first setter screw. The base frame is a hollow rectangular body. Two sets of support assemblies are provided, and the two sets of support assemblies are symmetrically arranged on the base frame for rolling support of the bottom end of the automotive tubular part. One end of the support base is fixedly installed on the rear side wall of the base frame. The dial is fixedly installed on the other end of the support base, and the center of the dial is coaxial with the center of the automotive tubular part. The positioning block is sleeved and installed on the rear end of the automotive tubular part, and the bottom end of the inner wall of the positioning block abuts against the inner side wall of the automotive tubular part. The pointer is fixedly installed on the positioning block. The first setter screw is threaded vertically through the positioning block, and the bottom end of the first setter screw tightly abuts against the outer side wall of the automotive tubular part.

[0007] In the above technical solution, each set of supporting components includes: angle steel, first rotating shaft and first roller. The angle steel is installed on the base frame from front to back. There are two first rotating shafts, and the two first rotating shafts are respectively rotatably mounted on the angle steel. The first roller is fixedly installed on the first rotating shaft.

[0008] In the above technical solution, the two first rotating shafts are arranged coaxially on the angle steel, corresponding to each other.

[0009] The above technical solution also includes a lifting and adjusting assembly, which includes: a column, a slider, a second set screw, and an extension arm. The column is vertically installed on the base frame; the slider is slidably sleeved on the column; the second set screw is threaded through the slider, and the end of the second set screw is tightly abutted against the side wall of the column; the right side wall of the extension arm is fixedly installed on the side wall of the slider.

[0010] In the above technical solution, a displacement assembly is provided at the extension arm. The displacement assembly includes a screw, a lifting seat, and a guide rod. The screw is threaded through the outer wall of the extension arm in a vertical direction. The bottom end of the lifting seat is fixedly installed at the bottom end of the screw. Two guide rods are provided, and the two guide rods slide through the extension arm in a vertical direction respectively. The bottom end of the guide rod is fixedly connected to the upper surface of the lifting seat.

[0011] In the above technical solution, two sets of rolling components are symmetrically arranged on the left and right sides of the bottom end of the lifting seat. Each set of rolling components includes: a mounting seat, a second rotating shaft, and a second roller. The mounting seat is fixedly installed on the lower surface of the lifting seat. The second rotating shaft is rotatably arranged at the bottom end of the mounting seat. There are two second rollers, and the two second rollers are respectively installed at the front and rear ends of the second rotating shaft, and the second rollers are in rolling contact with the upper surface of the automotive tubular component.

[0012] In the above technical solution, the two second rotating shafts are arranged symmetrically to the left and right of the center of the tubular component of the automobile.

[0013] In the above technical solution, the two angle steels are arranged symmetrically to the left and right of the center of the tubular component of the automobile.

[0014] In the above technical solution, the bottom end of the inner wall of the positioning block is set to be arc-shaped, and the arc shape is adapted to the curvature of the inner sidewall of the automotive tubular component.

[0015] The circumferential equidistant machining fixture for automotive parts of this utility model has the following advantages compared with the prior art:

[0016] I. To address the problem that conventional fixtures with only clamping and positioning functions cannot adapt to circumferential equidistant machining instructions with different spacing parameters, thus failing to meet actual usage needs, this utility model configures a pointer at the end of the automotive tubular component. The pointer can rotate synchronously with the circumferential rotation of the automotive tubular component, and the circumferential rotation angle of the automotive tubular component can be accurately indicated by the rotation angle of the pointer relative to the scale on the dial. Based on this, it can flexibly adapt to equidistant machining instructions with different circumferential spacing parameters according to actual production needs, and better meet the usage needs of actual application scenarios.

[0017] Second, in this utility model, after the car tubular component is positioned, it remains concentric and coaxial with the dial. Therefore, the pointer set on the car tubular component can rotate circumferentially with the center of the dial as the axis. This setting ensures that the pointer can always accurately indicate the rotation circumferentially relative to the dial, and there will be no eccentric rotation relative to the dial, thereby ensuring the accuracy of the pointer's rotation indication value of the car tubular component.

[0018] Third, the present invention arranges two sets of angle steel and the first roller at intervals, which can form rolling support for the bottom end of the car tubular component. This structural design ensures that after the car tubular component is positioned, it can still achieve circumferential rotation under manual or other external force drive, thereby cooperating to complete the circumferential equidistant processing operation of the car tubular component.

[0019] Fourth, this utility model is equipped with two sets of second rollers that can achieve lifting and displacement, which can form two-point positioning on the upper surface of the car tubular component; combined with the first rollers at the bottom end that perform two-point rolling support and positioning on the lower surface of the car tubular component, the car tubular component is subject to four-point rolling limit during positioning and rotation after positioning, thereby ensuring that the car tubular component always maintains a stable state during rotation.

[0020] In summary, this utility model, by configuring a pointer at the end of the tubular component of the vehicle, allows it to rotate synchronously with the component and precisely indicate the rotation angle using a scale on a dial. This enables flexible adaptation to equidistant machining instructions with different circumferential spacing parameters, meeting practical application needs. Because the positioned tubular component and the dial are concentric and coaxial, the pointer can rotate accurately around the center of the dial, avoiding eccentricity and ensuring the accuracy of the rotation indication value. Two sets of angle steels arranged at intervals, along with the first roller, form rolling support for the bottom of the tubular component, ensuring that the component can rotate circumferentially under external force after positioning, thus completing circumferential equidistant machining. Two sets of liftable second rollers position the upper surface of the tubular component at two points, combined with the two-point rolling support of the bottom first roller, forming a four-point rolling limit, ensuring that the tubular component remains stable during positioning and rotation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the extension arm of this utility model;

[0022] Figure 2 This is a front view of the first roller of this utility model;

[0023] Figure 3 This is a right view of the support base of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the angle steel of this utility model;

[0025] Figure 5 This is a schematic diagram of the positioning block of this utility model;

[0026] Figures 1 to 5 In the middle, 1. base frame, 2. angle steel, 3. first rotating shaft, 4. first roller, 5. support seat, 6. dial, 7. automotive tubular component, 8. positioning block, 9. pointer, 10. first set screw, 12. column, 13. slider, 14. second set screw, 15. extension arm, 16. screw, 17. lifting seat, 18. guide rod, 19. mounting seat, 20. second rotating shaft, 21. second roller. Detailed Implementation

[0027] The following are specific implementation cases and appendices. Figures 1 to 5 The present invention will be further described below, but the present invention is not limited to these embodiments.

[0028] A circumferential equidistant machining fixture for automotive parts, used for positioning fixtures during circumferential machining of automotive tubular parts 7, includes: a base frame 1, a support assembly, a support base 5, a dial 6, a positioning block 8, a pointer 9, and a first set screw 10. The base frame 1 is a hollow rectangular body. Two sets of support assemblies are provided, and the two sets of support assemblies are symmetrically arranged on the base frame 1 for rolling support of the bottom end of the automotive tubular parts 7. One end of the support base 5 is fixedly installed on the rear side wall of the base frame 1. The dial 6 is fixedly installed on the other end of the support base 5, and the center of the dial 6 is coaxial with the center of the automotive tubular parts 7. The positioning block 8 is sleeved and installed on the rear end of the automotive tubular parts 7, and the bottom end of the inner wall of the positioning block 8 abuts and fits against the inner side wall of the automotive tubular parts 7. The pointer 9 is fixedly installed on the positioning block 8. The first set screw 10 is threaded through the positioning block 8 in the vertical direction, and the bottom end of the first set screw 10 abuts tightly against the outer side wall of the automotive tubular parts 7.

[0029] The pointer 9 is pre-assembled into the corresponding position of the tubular component 7 of the vehicle: the bottom end of the inner wall of the positioning block 8 is fitted with the inner side wall of the tubular component 7 of the vehicle, and the first set screw 10 is tightened so that it is tightly against the outer side wall of the tubular component 7 of the vehicle; through the synergistic action of the first set screw 10 and the positioning block 8, the positioning block 8 is stably connected to the tubular component 7 of the vehicle, and at this time the pointer 9 is stably assembled and connected to the tubular component 7 of the vehicle.

[0030] Specifically, each support assembly includes: angle steel 2, first rotating shaft 3, and first roller 4. Angle steel 2 is installed on the base frame 1 from front to back. There are two first rotating shafts 3, and the two first rotating shafts 3 are rotatably mounted on angle steel 2 respectively. The first roller 4 is fixedly mounted on the first rotating shaft 3. The car tubular component 7 is rolled on the first roller 4, which can support the car tubular component 7 without interfering with or obstructing the subsequent circumferential rotation processing of the car tubular component 7, so as to achieve smooth subsequent circumferential rotation of the car tubular component 7. The two first rotating shafts 3 are corresponding to each other and coaxially mounted on angle steel 2 to ensure that the first roller 4 can rotate coaxially and there will be no problem of inconsistent rotation centers of the first roller 4 in the front and rear positions.

[0031] This solution also includes a lifting and adjusting assembly, which includes: a column 12, a slider 13, a second setter screw 14, and an extension arm 15. The column 12 is vertically mounted on the base frame 1; the slider 13 is slidably sleeved on the column 12; the second setter screw 14 is threaded through the slider 13, and the end of the second setter screw 14 is tightly abutted against the side wall of the column 12; the right side wall of the extension arm 15 is fixedly mounted on the side wall of the slider 13; by the vertical displacement of the slider 13 along the column 12, the overall height of other components can be uniformly adjusted, and the second setter screw 14 can be used to lock and position the slider 13 at the column 12 after adjustment. The setter positioning method is existing technology, which only needs to meet the function of the second setter screw 14 to tighten and limit the slider 13 at the column 12. The model of the second setter screw 14 is not limited here.

[0032] A displacement assembly is provided at the extension arm 15, which includes a screw 16, a lifting seat 17, and a guide rod 18. The screw 16 is threaded through the outer wall of the extension arm 15 in the vertical direction. The bottom end of the lifting seat 17 is fixedly installed at the bottom end of the screw 16. There are two guide rods 18, and the two guide rods 18 slide through the extension arm 15 in the vertical direction respectively. The bottom end of the guide rod 18 is fixedly connected to the upper surface of the lifting seat 17. By driving the screw 16 to rotate, the lifting seat 17 is moved up and down relative to the extension arm 15, and the guide rod 18 is moved vertically along the extension arm 15.

[0033] Two sets of rolling components are symmetrically arranged on the left and right sides of the bottom end of the lifting seat 17. Each set of rolling components includes: a mounting seat 19, a second rotating shaft 20, and a second roller 21. The mounting seat 19 is fixedly installed on the lower surface of the lifting seat 17. The second rotating shaft 20 is rotatably mounted on the bottom end of the mounting seat 19 through a bearing. There are two second rollers 21, which are respectively installed at the front and rear ends of the second rotating shaft 20, and the second rollers 21 roll in contact with the upper surface of the car tubular component 7. The car tubular component 7 to be processed is placed on the first roller 4 at the bottom end to achieve rolling positioning of the left and right sides of the lower surface of the car tubular component 7. The drive screw 16 rotates, which can drive the lifting seat 17 to move downward and cause the guide rod 18 to move downward relative to the extension arm 15. The two sets of mounting seats 19 at the bottom end of the lifting seat 17 will drive the corresponding second rollers 21 to move downward synchronously, so that the two sets of second rollers 21 at the top end form two-point positioning of the upper surface of the car tubular component 7. Through the above operations, the tubular component 7 of the automobile achieves a four-point rolling limit at the first roller 4 and the second roller 21.

[0034] Specifically, the two second rotating shafts 20 are symmetrically arranged with respect to the center of the tubular component 7, thereby ensuring that the second rotating shafts 20 at the left and right positions can symmetrically roll and limit the upper surface of the tubular component 7; the two angle steels 2 are symmetrically arranged with respect to the center of the tubular component 7, thereby ensuring that the first rollers 4 on the angle steels 2 at the left and right positions can symmetrically roll and limit the lower surface of the tubular component 7, thus ensuring that the tubular component 7 can maintain stable circumferential rotation under the limitation of the second rotating shafts 20 and the first rollers 4.

[0035] Main references Figure 5 As shown, the bottom end of the inner wall of the positioning block 8 is set to be arc-shaped, and the arc shape is adapted to the curvature of the inner wall of the car tubular component 7, thereby ensuring that the bottom end of the inner wall of the positioning block 8 can be stably fitted and positioned with the inner wall of the car tubular component 7, and ensuring effective and stable positioning of the positioning block 8 and the car tubular component 7.

[0036] It is worth noting that the fixture in this application is only for automotive tubular parts 7 that are coaxial with the center of the dial 6 after positioning, to meet the positioning requirements for circumferential equidistant machining. It is intended to adapt to the equidistant machining production requirements of automotive tubular parts 7 with different circumferential spacing parameters, rather than for machining automotive tubular parts 7 of different specifications. The specifications of automotive tubular parts 7 only need to meet the above-mentioned usage requirements, and will not be elaborated or limited here.

[0037] Screw 17 is a screw that can achieve self-locking in the existing market. It can achieve self-locking when it stops rotating and will not be affected by external forces to rotate. It is a commercially available general part. The model of the above-mentioned existing parts will not be limited or described in detail.

[0038] The working principle of the circumferential equidistant machining fixture for automotive parts in this embodiment is as follows:

[0039] The pointer 9 is pre-installed on the tubular component 7 of the car: the bottom end of the inner wall of the positioning block 8 is attached to the inner side wall of the tubular component 7 of the car, and the first set screw 10 is rotated to make it press tightly against the outer side wall of the tubular component 7 of the car. Under the combined action of the first set screw 10 and the positioning block 8, the positioning block 8 is stably connected to the tubular component 7 of the car, and the pointer 9 is stably connected and assembled on the tubular component 7 of the car.

[0040] The automotive tubular component 7 to be processed is placed on the first roller 4 at the bottom, achieving rolling positioning of the left and right sides of the lower surface of the automotive tubular component 7; by rotating the drive screw 16, the lifting seat 17 is moved downward, and the guide rod 18 is moved downward relative to the extension arm 15. The two sets of mounting seats 19 at the bottom of the lifting seat 17 respectively drive the corresponding second rollers 21 to move downward, so that the two sets of second rollers 21 at the top perform two-point positioning on the upper surface of the automotive tubular component 7, thereby achieving rolling limit of the automotive tubular component 7 at four points above and below at the first roller 4 and the second roller 21;

[0041] When performing circumferential equidistant machining on the automotive tubular component 7, the automotive tubular component 7 is rotated manually or by other driving methods. The automotive tubular component 7 will synchronously drive the positioning block 8 and the pointer 9 to rotate together. The rotation angle indicated by the pointer 9 relative to the dial 6 is the actual rotation angle of the automotive tubular component 7 relative to the dial 6. By controlling the automotive tubular component 7 and the pointer 9 to rotate the same angle relative to the dial 6 each time, it can be ensured that the automotive tubular component 7 achieves circumferential equidistant rotation, thereby cooperating with existing processing equipment to complete the circumferential equidistant machining operation of the automotive tubular component 7.

[0042] This invention features a pointer 9 at the end of the tubular automotive component 7, which rotates synchronously with the component and precisely indicates the rotation angle using a scale on a dial 6. This allows for flexible adaptation to equidistant machining instructions with different circumferential spacing parameters, meeting practical application needs. Because the positioned tubular automotive component 7 is concentric and coaxial with the dial 6, the pointer 9 can rotate accurately around the center of the dial 6, avoiding eccentricity and ensuring the accuracy of the rotation indication value. Two sets of angle steels 2 and the first roller 4, arranged at intervals, form rolling support for the bottom of the tubular automotive component 7, ensuring that the component can rotate circumferentially under external force after positioning, thus completing circumferential equidistant machining. Two sets of liftable second rollers 21 position the upper surface of the tubular automotive component 7 at two points, combined with the two-point rolling support of the bottom first roller 4, forming a four-point rolling limit, ensuring that the tubular automotive component 7 remains stable during positioning and rotation.

[0043] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0044] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0045] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0046] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0047] Unless otherwise stated, the term "multiple" means two or more.

[0048] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0049] The term "and / or" describes the relationship between objects, indicating that there can be three relationships. For example, A and / or B means: A or B, or A and B.

[0050] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A circumferential equidistant machining jig for an automobile component, for positioning a jig for circumferential machining of an automobile tubular component (7), characterized in that: include: The base frame (1) is configured as a hollow rectangular body; The support assembly is provided in two sets, and the two sets of the support assembly are symmetrically arranged on the base frame (1) for rolling support of the bottom end of the automobile tubular component (7). Support base (5), one end of which is fixedly installed on the rear side wall of the base frame (1); The dial (6) is fixedly installed at the other end of the support base (5), and the center of the dial (6) is coaxial with the center of the car tubular component (7). Positioning block (8), the positioning block (8) is sleeved and installed on the rear end of the automobile tubular component (7), and the bottom end of the inner wall of the positioning block (8) is in contact with and fits against the inner side wall of the automobile tubular component (7); Pointer (9), which is fixedly mounted on the positioning block (8); The first set screw (10) is threaded through the positioning block (8) in the vertical direction, and the bottom end of the first set screw (10) is tightly abutted against the outer wall of the automotive tubular component (7).

2. The circumferential equidistant machining fixture for automotive parts according to claim 1, characterized in that: Each set of the support components includes: Angle steel (2), which is installed on the base frame (1) from front to back; There are two first rotating shafts (3), and the two first rotating shafts (3) are respectively rotatably mounted on the angle steel (2); The first roller (4) is fixedly mounted on the first rotating shaft (3).

3. The circumferential equidistant machining fixture for automotive parts according to claim 2, characterized in that: The two first rotating shafts (3) are arranged coaxially on the angle steel (2) and are corresponding to each other.

4. The circumferential equidistant machining fixture for automotive parts according to claim 1, characterized in that: It also includes a height adjustment assembly, which includes: A column (12) is vertically mounted on the base frame (1); The slider (13) is slidably sleeved on the column (12); The second set screw (14) is threaded through the slider (13), and the end of the second set screw (14) is tightly abutted against the side wall of the column (12); The extension arm (15) is fixedly mounted on the side wall of the slider (13) on its right side wall.

5. A circumferential equidistant machining fixture for automotive parts according to claim 4, characterized in that: A displacement assembly is provided at the extension arm (15), the displacement assembly comprising: The screw (16) is threaded through the outer wall of the extension arm (15) in a vertical direction; Lifting seat (17), the bottom end of which is fixedly installed on the bottom end of the screw (16); There are two guide rods (18), and the two guide rods (18) slide through the extension arm (15) in the vertical direction respectively. The bottom end of the guide rod (18) is fixedly connected to the upper surface of the lifting seat (17).

6. A circumferential equidistant machining fixture for automotive parts according to claim 5, characterized in that: Two sets of rolling components are symmetrically arranged on the left and right sides of the bottom end of the lifting seat (17), and each set of rolling components includes: Mounting base (19), which is fixedly installed on the lower surface of the lifting base (17); The second rotating shaft (20) is rotatably disposed at the bottom end of the mounting base (19); The second roller (21) is provided in two parts, and the two second rollers (21) are respectively installed at the front and rear ends of the second rotating shaft (20), and the second rollers (21) are in rolling contact with the upper surface of the automobile tubular component (7).

7. A circumferential equidistant machining fixture for automotive parts according to claim 6, characterized in that: The two second rotating shafts (20) are symmetrically arranged on the left and right sides of the center of the tubular component (7) of the automobile.

8. A circumferential equidistant machining fixture for automotive parts according to claim 2, characterized in that: The two angle steels (2) are arranged symmetrically to the left and right of the center of the tubular component (7) of the automobile.

9. A circumferential equidistant machining fixture for automotive parts according to claim 1, characterized in that: The bottom of the inner wall of the positioning block (8) is set in an arc shape, and the arc shape is adapted to the curvature of the inner side wall of the automotive tubular component (7).

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