Clamping tool for automobile part machining
By designing a clamping fixture that includes a threaded screw and a motor, the problem of insufficient clamping accuracy of existing clamping fixtures for large-stroke parts is solved, and precision clamping and high-precision machining are realized.
Patent Information
- Application Number
- CN202520089094.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-01-15
AI Technical Summary
Existing clamping fixtures for automotive parts processing have limited clamping range when clamping large-stroke parts, which cannot meet the accuracy requirements and leads to a decrease in the accuracy of hole spacing processing.
A clamping fixture comprising a base, a support shaft, a base, a clamping seat, a guide rod, an adjusting seat, a positioning shaft, a threaded screw, a clamping plate, and a motor is designed. The adjusting seat is precisely moved by rotating the threaded screw, and the clamping plate is used to stably clamp automotive parts.
It achieves precision clamping over a long stroke range, reduces machining errors, improves the machining accuracy and consistency of parts, and enhances the adaptability of tooling.
Smart Images

Figure CN223734709U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of automotive parts processing, and specifically relates to a clamping fixture for automotive parts processing. Background Technology
[0002] Automotive parts machining refers to the processes of machining, shaping, and assembling various components during automobile manufacturing. This process involves multiple steps and technologies aimed at ensuring that the dimensions, shape, and performance of the parts meet design requirements. Clamping fixtures in automotive parts machining are specialized equipment used to fix and support the parts. They play a crucial role in ensuring part stability, improving machining accuracy, and increasing efficiency during the machining process.
[0003] Existing clamping fixtures for automotive parts machining are typically designed for clamping small automotive parts during hole spacing machining. When clamping automotive parts with large strokes and machining hole spacing requires this, the clamping range of the fixtures is insufficient. Often, cylinders and guide blocks are used directly for clamping. However, the clamping length of these fixtures is limited and cannot meet the clamping requirements for large-stroke workpieces, while also failing to achieve the required clamping accuracy. Workpieces may experience skewness or tilting during clamping, leading to a decrease in the machining accuracy of the hole spacing of automotive parts.
[0004] Therefore, a clamping fixture for machining automotive parts is proposed to solve the above problems. Utility Model Content
[0005] In view of one or more of the above-mentioned defects or improvement needs of the prior art, this utility model provides a clamping fixture for processing automotive parts, which has the advantages of ensuring precise clamping of automotive parts over a long stroke range and precise adjustable clamping range.
[0006] To achieve the above objectives, this utility model provides a clamping fixture for machining automotive parts, including a base;
[0007] The upper surface of the base is provided with four sets of support shafts arranged in a rectangular pattern. A base is mounted on all four sets of support shafts. The upper surface of the base is provided with four clamping seats arranged in a rectangular pattern.
[0008] A first optical rod is installed between two opposing clamping seats. The two first optical rods are arranged in parallel and are fitted with two adjusting seats on their exteriors.
[0009] A positioning shaft is mounted on the side of one of the adjusting seats, and a threaded screw is rotatably installed inside the positioning shaft. A screw nut is engaged with the outside of the screw, and the screw nut passes through and is connected to one of the adjusting seats.
[0010] As a further improvement of this utility model, the two adjustment seats are arranged perpendicular to the first guide rod, one of the adjustment seats connected to the lead screw nut slides outside the first guide rod, and the other adjustment seat is fixedly installed on the side of the two adjacent clamping seats.
[0011] As a further improvement of this utility model, both adjustment seats are threaded with positioning bolts and clamping plates are connected through the positioning bolts, and the two clamping plates are arranged opposite to each other.
[0012] As a further improvement of this utility model, the adjusting seat, which is fixedly set, has a reciprocating motor mounted on its side. The output end of the reciprocating motor passes through the adjusting seat and the positioning shaft and extends to connect with the threaded screw.
[0013] As a further improvement of this utility model, a first linear bearing is mounted on the outside of each of the two first optical rods, and each of the two first linear bearings passes through one of the adjusting seats and is assembled and connected thereto.
[0014] As a further improvement of this utility model, the adjusting seat, which is fixedly set, has two second light rods installed on its side. Each of the two second light rods is equipped with a second linear bearing, and each of the two second linear bearings passes through one of the adjusting seats and is assembled and connected to it.
[0015] In summary, the beneficial effects of the above-described technical solutions conceived by this utility model compared with the prior art include:
[0016] This utility model discloses a clamping fixture for machining automotive parts. In practical use, through the mutual movement and cooperation of multiple structures within this application, two adjustable seats can cooperate with the clamping plate to perform clamping movements, thereby achieving clamping and limiting of the automotive parts. Compared with the traditional cylinder clamping method, this application, by adjusting the number of rotations of the threaded screw, allows one of the adjustable seats and the clamping plate to perform precise and controllable linear movement, thereby cooperating with the other fixed clamping plate to achieve stable clamping of the automotive parts, ensuring accurate and reliable clamping position of the automotive parts within a long stroke range. This precision clamping can effectively reduce errors caused by improper clamping during machining, thereby improving the machining accuracy and consistency of automotive parts, ensuring that each part meets design requirements, and this flexibility allows the fixture to be used in various machining environments, improving production adaptability. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall installation structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the connection structure between the reciprocating motor and the threaded screw of this utility model.
[0019] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1. base; 2. support shaft; 3. base; 4. clamping seat; 5. first guide rod; 6. adjusting seat; 7. positioning bolt; 8. clamping plate; 9. first linear bearing; 10. second guide rod; 11. second linear bearing; 12. positioning shaft; 13. threaded screw; 14. screw nut; 15. reciprocating motor. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Example
[0022] Depend on Figure 1-2 A clamping fixture for machining automotive parts is provided, comprising a base 1;
[0023] The upper surface of the base 1 is provided with four sets of support shafts 2 arranged in a rectangular pattern. The four sets of support shafts 2 are all mounted on the base 3. The upper surface of the base 3 is provided with four clamping seats 4 arranged in a rectangular pattern.
[0024] A first optical rod 5 is installed between two opposing clamping seats 4. The two first optical rods 5 are arranged in parallel and are fitted with two adjusting seats 6 on their exteriors.
[0025] A positioning shaft 12 is mounted on the side of one of the adjusting seats 6. A threaded screw 13 is rotatably installed inside the positioning shaft 12. A screw nut 14 is engaged with the outside of the threaded screw 13. The screw nut 14 passes through one of the adjusting seats 6 and is connected to it.
[0026] In this embodiment, the two adjusting seats 6 can cooperate with the clamping plate 8 to perform clamping movements, thereby achieving clamping and limiting of the automotive parts. Compared with the traditional cylinder clamping method, this application, by adjusting the number of rotations of the threaded screw 13, allows one of the adjusting seats 6 and the clamping plate 8 to perform precise and controllable linear movement, thereby cooperating with the other fixed clamping plate 8 to complete the stable clamping of the automotive parts, ensuring accurate and reliable clamping position of the automotive parts within a long stroke range. This precision clamping can effectively reduce errors caused by improper clamping during processing, thereby improving the processing accuracy and consistency of automotive parts, ensuring that each part meets design requirements, and this flexibility allows the tooling to be used in various processing environments, improving production adaptability.
[0027] Furthermore, by adjusting the connection height between the support shaft 2 and the base 3, the user can also adjust the different heights of the base 3, thereby further increasing the application range of the clamping fixture of this application.
[0028] Specifically, refer to Figure 1-2 Two adjusting seats 6 are set perpendicular to the first guide rod 5. One of the adjusting seats 6, which is connected to the lead screw nut 14, slides outside the first guide rod 5, while the other adjusting seat 6 is fixedly installed on the side of the two adjacent clamping seats 4.
[0029] In this embodiment, the two adjustable seats 6 can be used in conjunction with the clamping plate 8 to clamp and limit the automotive parts. In use, one of the adjustable seats 6 slides outside the first light rod 5, while the other adjustable seat 6 is fixed to the side of the two clamping seats 4.
[0030] Specifically, refer to Figure 1-2 Both adjusting seats 6 are threaded with positioning bolts 7 and clamping plates 8 are connected through the positioning bolts 7. The two clamping plates 8 are arranged opposite each other.
[0031] In this embodiment, the positioning bolt 7 can be used to thread the clamping plate 8, so that the clamping plate 8 can be installed on the adjusting seat 6; in the preferred embodiment, the clamping plate 8 is provided with a rectangular plane on its side, and the user can also disassemble and adjust the specifications and shape of the clamping plate 8 according to different shapes of automotive parts.
[0032] Specifically, refer to Figure 1-2 The adjusting seat 6 is fixedly set, and a reciprocating motor 15 is installed on its side. The output end of the reciprocating motor 15 passes through the adjusting seat 6 and the positioning shaft 12 and extends to connect with the threaded screw 13.
[0033] In this embodiment, the reciprocating motor 15 can be used to control the rotation of the lead screw 13.
[0034] Furthermore, the power connection method of the reciprocating motor 15 is existing technology, and the control circuit can be implemented by a person skilled in the art through simple programming. It is common knowledge in the field, and it is only used without modification. Therefore, the control method and circuit connection will not be described in detail.
[0035] Specifically, refer to Figure 1-2 Both first linear bearings 9 are mounted on the outside of the two first linear rods 5, and both first linear bearings 9 pass through one of the adjusting seats 6 and are assembled and connected to it.
[0036] In this embodiment, the first linear bearing 9 is provided to allow the adjusting seat 6 to slide stably outside the first light rod 5.
[0037] Specifically, refer to Figure 1-2 The adjusting seat 6 is fixedly set and has two second light rods 10 installed on its side. The two second light rods 10 are each equipped with a second linear bearing 11. The two second linear bearings 11 pass through one of the adjusting seats 6 and are assembled and connected to it.
[0038] In this embodiment, the two second optical rods 10 are used to install the second linear bearing 11. Through the assembly connection between the second linear bearing 11 and the adjusting seat 6, the adjusting seat 6 can slide stably outside the two second optical rods 10.
[0039] This utility model relates to a clamping fixture for machining automotive parts.
[0040] Step 1: In actual use, when the user needs to process and clamp the car parts, first adjust the distance between the two adjusting seats 6 according to the size of the car parts. During this period, the user connects the reciprocating motor 15 to the power supply. When the reciprocating motor 15 is working, the threaded screw 13 connected to it can rotate accordingly. When the threaded screw 13 rotates, it is laterally limited by the first guide rod 5 and the first linear bearing 9. At this time, the adjusting seat 6 connected to the screw nut 14 can move in a reciprocating linear motion along the stroke range of the threaded screw 13.
[0041] Step 2: The user adjusts the distance between the two adjusting seats 6 according to the size of the car part, and then places them between the two clamping plates 8. At the same time, by adjusting the rotation direction and number of revolutions of the threaded screw 13, one of the adjusting seats 6 can move linearly to one side of the other adjusting seat 6 until the two clamping plates 8 installed on the adjusting seats 6 can clamp the car part. At this time, the clamping limit of the two clamping plates 8 can realize the clamping of the car part. Similarly, when the user controls the threaded screw 13 to rotate in the opposite direction again, the adjusting seat 6 connected to the outside of the screw nut 14 can move away from the other adjusting seat 6, thereby realizing the release of the car part.
[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A clamping fixture for machining automotive parts, characterized in that; It includes base (1); The upper end surface of the base (1) is provided with four groups of supporting shafts (2) in a rectangular distribution, and a base (3) is jointly installed on the four groups of supporting shafts (2), and four clamping seats (4) are provided on the upper end surface of the base (3) in a rectangular distribution; The first light pole (5) is jointly installed between the two clamping seats (4) arranged in opposition, and the two first light poles (5) are arranged in parallel and are jointly sleeved with two adjusting seats (6) outside. One side of the adjusting seat (6) is provided with a positioning shaft (12), a threaded screw rod (13) is rotatably arranged in the positioning shaft (12), a screw nut (14) is engaged outside the threaded screw rod (13), and the screw nut (14) penetrates one of the adjusting seats (6) and is connected thereto.
2. The clamping jig for processing an automobile part according to claim 1, wherein The two adjusting seats (6) are arranged perpendicular to the first light pole (5), one of the adjusting seats (6) connected with the screw nut (14) slides outside the first light pole (5), and the other adjusting seat (6) is fixedly installed on the side surface of the adjacent two clamping seats (4).
3. The clamping jig for processing an automobile part according to claim 1, wherein The positioning bolt (7) is threadedly connected to the two adjusting seats (6), and the clamping plate (8) is connected through the positioning bolt (7), and the two clamping plates (8) are arranged in opposition.
4. The clamping jig for machining of an automobile part according to claim 1, characterized by The side surface of the fixed adjusting seat (6) is provided with a reciprocating motor (15), and the output end of the reciprocating motor (15) penetrates the adjusting seat (6) and the positioning shaft (12) and extends to be connected with the threaded screw rod (13).
5. The clamping jig for processing an automobile part according to claim 1, wherein The first linear bearing (9) is arranged outside the two first light poles (5), and the two first linear bearings (9) penetrate one of the adjusting seats (6) and are assembled and connected thereto.
6. The clamping jig for machining of an automobile part according to claim 1, wherein The side surface of the fixed adjusting seat (6) is provided with two second light poles (10), and the second linear bearing (11) is arranged outside the two second light poles (10), and the two second linear bearings (11) penetrate one of the adjusting seats (6) and are assembled and connected thereto.