Positioning mechanism for groove milling of automobile seat framework

By combining guide rods, cylinders, transverse clamping plates, and longitudinal clamping plates, the accuracy problem caused by vibration during the milling process of automotive seat frames is solved, achieving precise positioning, clamping, and milling effects.

CN224059296UActive Publication Date: 2026-03-31WUHU ZHUOSHENG AUTOMOTIVE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-07
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

In the existing technology, the car seat frame can only be clamped and fixed in two directions during the milling process, which causes vertical vibration and affects the milling accuracy.

Method used

It adopts a combination structure of guide rod, cylinder, transverse clamping plate and longitudinal clamping plate. The cylinder achieves horizontal bidirectional positioning and clamping. Combined with the adjustment structure and clamping structure, it ensures that the car seat frame can be effectively positioned in both the transverse and longitudinal directions to prevent vibration.

Benefits of technology

This technology improves the precision of milling grooves in automotive seat frames, avoids the effects of vibration, and ensures the accuracy requirements for the position, depth, and surface finish of the milled grooves.

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Abstract

The utility model relates to the technical field of automobile seat framework machining, in particular to an automobile seat framework milling groove positioning mechanism which comprises a working support arranged on a milling machine, two opposite clamping seats are arranged on the working support in a sliding mode, and the automobile seat framework milling groove positioning mechanism further comprises a guide rod and a positioning rod. The guide rod is installed on the working support, the two clamping seats are both installed on the guide rod in a sliding mode, in the using process, the adjusting structure is matched with the air cylinders arranged on the two sides of the working support, the automobile seat framework is horizontally positioned and clamped in two directions firstly, meanwhile, the positioning angle of the longitudinal clamping plate on the clamping seats is adjusted through the clamping structure, and the automobile seat framework is clamped in two directions. And the longitudinal clamping plates abut against the upper end of the bottom of the automobile seat framework, so that the automobile seat framework can be effectively positioned and clamped in the transverse direction and the longitudinal direction, vibration generated during groove milling of the automobile seat framework is avoided, and therefore the groove milling precision of the automobile seat framework is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of automotive seat frame processing technology, and in particular to an automotive seat frame milling groove positioning mechanism. Background Technology

[0002] To create the precise slots needed for installing other components, the car seat frame needs to be milled. To ensure smooth subsequent assembly, the position, depth, and surface finish of the milled slots all have precision requirements. Existing car seat frames require effective positioning during milling. For example, Chinese patent application CN201710065865.X discloses a milling and positioning device for a car seat frame, which effectively positions the seat frame through a clamping device, facilitating production. However, this device achieves left and right clamping only through the cooperation of a side hydraulic cylinder and a positioning plate, resulting in clamping and fixation in only two directions. The car seat frame still experiences vertical force during milling, causing vibration during the milling process and affecting the milling accuracy. Utility Model Content

[0003] In view of this, the purpose of this utility model is to propose a positioning mechanism for milling grooves in an automotive seat frame, so as to solve the technical problem that the existing technology achieves left and right clamping through the cooperation of the side hydraulic cylinder and the positioning plate, which can only achieve clamping and fixing in two directions. However, the automotive seat frame is still subjected to vertical force during the milling process, which causes a certain vibration during the milling of the automotive seat frame and affects the milling accuracy.

[0004] To achieve the above objectives, this utility model provides a milling groove positioning mechanism for an automotive seat frame, including a work support mounted on a milling machine, with two clamping seats slidably mounted on the work support and arranged opposite to each other. The automotive seat frame milling groove positioning mechanism further includes:

[0005] A guide rod is mounted on the working bracket, and both clamping seats are slidably mounted on the guide rod.

[0006] A cylinder is mounted on the working bracket, and the output end of the cylinder is connected to the clamping seat.

[0007] A transverse clamping plate is provided opposite to the clamping seat on one side, and both transverse clamping plates are adjustable on the clamping seat by an adjustment structure.

[0008] A longitudinal clamping plate is rotatably mounted on the upper end of the clamping seat, and the longitudinal clamping plate is adjustable on the clamping seat via a clamping structure.

[0009] Furthermore, the lower end of the working support is provided with a lead screw, and the working support is adjustable on the milling machine via the lead screw.

[0010] Furthermore, the clamping seat has an L-shaped structure and engages with the bottom of the car seat frame.

[0011] Furthermore, the adjustment structure includes a screw and a handle. The screw is threaded onto the clamping seat, and the handle is coaxially mounted on one end of the screw. A connecting rod is rotatably mounted on the other end of the screw, and the connecting rod passes through the clamping seat and is connected to the transverse clamping plate.

[0012] Furthermore, the transverse clamp has a strip-shaped mounting opening, and a backing plate is detachably installed inside the mounting opening. The backing plate is fixedly connected to the connecting rod.

[0013] Furthermore, the clamping structure includes a second screw and a fixing plate. The fixing plate is detachably installed on the back of the clamping seat, the second screw is threaded onto the fixing plate, and the end of the second screw abuts against the side end of the longitudinal clamping plate.

[0014] Furthermore, a fixing groove is provided on the longitudinal clamping plate, and the end of the second screw abuts against the fixing groove.

[0015] Furthermore, the longitudinal clamping plate is L-shaped, and a push-pull block is provided at the end of the longitudinal clamping plate.

[0016] The beneficial effects of this utility model are as follows: When using the milling and positioning mechanism for automobile seat frames of this utility model, the cylinders on both sides of the working bracket are adjusted to achieve horizontal bidirectional positioning and clamping of the automobile seat frame. At the same time, the positioning angle of the longitudinal clamping plate on the clamping seat is adjusted by the clamping structure until the longitudinal clamping plate abuts against the upper end of the bottom of the automobile seat frame. This allows for effective positioning and clamping of the automobile seat frame in both the horizontal and vertical directions, avoiding vibration during the milling and grooving process of the automobile seat frame, thereby ensuring the milling accuracy of the automobile seat frame. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2This is a schematic diagram of the working support structure in this utility model;

[0020] Figure 3 This is an assembly diagram of the clamping seat, adjustment structure, and clamping structure in this utility model;

[0021] Figure 4 This is a schematic diagram of the assembly of the clamping seat and the cylinder in this utility model;

[0022] Figure 5 This is a bottom view of the longitudinal clamping plate in this utility model.

[0023] The diagram is marked as follows:

[0024] 1. Working support; 2. Clamping seat; 3. Guide rod; 4. Cylinder; 5. Horizontal clamping plate; 6. Longitudinal clamping plate; 7. Lead screw; 8. Screw one; 9. Rotary handle; 10. Connecting rod; 11. Backing plate; 12. Screw two; 13. Fixing plate; 14. Fixing groove; 15. Push-pull block. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0026] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0027] An embodiment of this utility model proposes a milling groove positioning mechanism for an automotive seat frame, such as... Figure 1-5 As shown, the mechanism includes a work support 1 mounted on a milling machine, with two clamping seats 2 slidably mounted on the work support 1 and arranged opposite each other. The automotive seat frame milling groove positioning mechanism also includes:

[0028] Guide rod 3 is mounted on the working bracket 1, and both clamping seats 2 are slidably mounted on the guide rod 3;

[0029] Cylinder 4 is mounted on the working bracket 1, and the output end of cylinder 4 is connected to the clamping seat 2.

[0030] The transverse clamping plates 5 are arranged opposite each other on the clamping seat 2 on one side. Both transverse clamping plates 5 can be adjusted and set on the clamping seat 2 through the adjustment structure.

[0031] The longitudinal clamping plate 6 is rotatably mounted on the upper end of the clamping seat 2. The longitudinal clamping plate 6 is adjustable on the clamping seat 2 through the clamping structure.

[0032] In this embodiment, the lower end of the working support 1 is provided with a lead screw 7, and the working support 1 can be adjusted and mounted on the milling machine via the lead screw 7.

[0033] In this embodiment, the clamping seat 2 has an L-shaped structure and is fitted with the bottom of the car seat frame.

[0034] In this embodiment, the adjustment structure includes a screw 8 and a handle 9. The screw 8 is threaded onto the clamping seat 2, and the handle 9 is coaxially mounted on one end of the screw 8. A connecting rod 10 is rotatably mounted on the other end of the screw 8. The connecting rod 10 passes through the clamping seat 2 and is connected to the transverse clamping plate 5.

[0035] In this embodiment, a strip-shaped mounting opening is provided on the transverse clamp 5, and a backing plate 11 is detachably provided in the mounting opening. The backing plate 11 is fixedly connected to the connecting rod 10.

[0036] In this embodiment, the clamping structure includes a second screw 12 and a fixing plate 13. The fixing plate 13 is detachably installed on the back of the clamping seat 2. The second screw 12 is threaded onto the fixing plate 13, and the end of the second screw 12 abuts against the side end of the longitudinal clamping plate 6.

[0037] Working process and principle: In this embodiment, the car seat frame is placed on one side of the milling machine. The position of the two transverse clamps 5 on the clamping seat 2 is adjusted by adjusting the structure so that one side of the clamping seat 2 abuts against the bottom sides of the car seat frame. Then, the cylinders 4 set on both sides of the working bracket 1 drive the corresponding clamping seats 2 to slide relative to each other until the car seat frame abuts against the clamping seat 2 on the other side, thus realizing the first horizontal bidirectional positioning and clamping of the car seat frame.

[0038] Subsequently, the longitudinal clamping plate 6 is positioned on the clamping seat 2 by adjusting the clamping structure until the longitudinal clamping plate 6 abuts against the upper end of the bottom of the car seat frame, so that the car seat frame can be effectively positioned and clamped in both the lateral and longitudinal directions. Finally, the working bracket 1 on which the car seat frame is installed is adjusted to the milling groove position by the lead screw 7.

[0039] In this embodiment, as Figure 5As shown, a fixing groove 14 is provided on the longitudinal clamping plate 6, and the end of the screw 12 abuts against the fixing groove 14, which can effectively position the longitudinal clamping plate 6 at any angle and has stronger adaptability.

[0040] In this embodiment, as Figure 5 As shown, the longitudinal clamping plate 6 is L-shaped, and the end of the longitudinal clamping plate 6 is provided with a push-pull block 15. By manually operating the push-pull block 15, the L-shaped longitudinal clamping plate 6 can be quickly flipped, so as to quickly disassemble and assemble the car seat frame.

[0041] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0042] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, 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 groove-milling positioning mechanism for an automobile seat framework, comprising a working support (1) provided on a milling machine, characterized in that, The work support (1) is provided with clamping seats (2) slidingly arranged thereon, the clamping seats (2) are arranged oppositely in pairs, and the automobile seat framework slot positioning mechanism further comprises: a guide rod (3) installed on the work support (1), the two clamping seats (2) are slidingly installed on the guide rod (3); a pneumatic cylinder (4) installed on the work support (1), and an output end of the pneumatic cylinder (4) is connected with the clamping seat (2); transverse clamping plates (5) oppositely arranged on the clamping seat (2) on one side, and the two transverse clamping plates (5) are adjustably arranged on the clamping seat (2) through adjusting structures; longitudinal clamping plates (6) rotatably installed on upper ends of the clamping seats (2), and the longitudinal clamping plates (6) are adjustably arranged on the clamping seats (2) through clamping structures.

2. The mechanism according to claim 1, wherein A lead screw (7) is arranged at a lower end of the work support (1), and the work support (1) is adjustably arranged on the milling machine through the lead screw (7).

3. The mechanism according to claim 1, wherein The clamping seat (2) is in L-shaped structure, and the clamping seat (2) is matched with a bottom of the automobile seat framework.

4. The mechanism according to claim 1, wherein The adjusting structure comprises a screw rod (8) and a handle (9), the screw rod (8) is threadedly installed on the clamping seat (2), the handle (9) is coaxially installed on one end of the screw rod (8), a connecting rod (10) is rotatably installed on the other end of the screw rod (8), the connecting rod (10) penetrates through the clamping seat (2) and is connected with the transverse clamping plate (5).

5. The mechanism according to claim 4, wherein A strip-shaped mounting hole is formed in the transverse clamping plate (5), a backrest (11) is detachably arranged in the mounting hole, and the backrest (11) is fixedly connected with the connecting rod (10).

6. The mechanism according to claim 1, wherein The clamping structure comprises a screw rod (12) and a fixed plate (13), the fixed plate (13) is detachably installed on a back of the clamping seat (2), the screw rod (12) is threadedly installed on the fixed plate (13), and an end of the screw rod (12) abuts against a side end of the longitudinal clamping plate (6).

7. The mechanism according to claim 6, wherein A fixed groove (14) is formed in the longitudinal clamping plate (6), and the end of the screw rod (12) abuts against the fixed groove (14).

8. The mechanism according to claim 6, wherein The longitudinal clamping plate (6) is in L-shaped structure, and a push-pull block (15) is arranged at an end of the longitudinal clamping plate (6).

Citation Information

Patent Citations

  • A car seat frame milling slot positioning device and its application method

    CN106695408B