A clamping device for seat frame welding
By designing a seat frame welding clamping device with a support base and a multi-point clamping mechanism, the problems of instability and poor size adaptability of traditional clamping are solved, achieving stable clamping and simplified operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGCHUN FULONGDA AUTO PARTS CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-06-09
AI Technical Summary
Traditional seat frames are unstable during welding, easily shaking and shifting, and have poor applicability to frames of different sizes, requiring frequent clamp changes.
A clamping device was designed, including a support base, upper and lower device clamping and positioning mechanisms, and a top lifting clamping mechanism. It achieves multi-point clamping and adjustment through linear modules and electric push rods to adapt to skeletons of different sizes, and uses rubber pads for cushioning and wear prevention.
It achieves stable clamping of the skeleton during the welding process, avoids shaking and displacement, simplifies the fixture replacement process, and adapts to the clamping requirements of skeletons of different sizes.
Smart Images

Figure CN224333807U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of seat frame welding technology, and in particular to a clamping device for welding seat frames. Background Technology
[0002] The descriptions in this section provide background information relating to this disclosure and do not constitute prior art.
[0003] During the production process, the car seat frame needs to be welded and fixed. When welding the two parts of the frame, the two parts of the frame need to be clamped separately to keep the welding surfaces of the two parts of the frame in contact.
[0004] However, in traditional technology, the stability of clamping the two skeleton parts cannot be guaranteed, and shaking and displacement may occur during welding; at the same time, the applicability to skeleton size is poor, and when the skeleton size difference is large, it is often necessary to change the clamp, which is more cumbersome to use. Utility Model Content
[0005] The purpose of this invention is to provide a clamping device for welding seat frames. The upper and lower clamping and positioning mechanisms on both sides are symmetrically slidably engaged on the left and right sides of the upper end of the support base, facilitating adjustment of the spacing according to the size of the seat frame. Multiple clamping components clamp and fix the upper and lower parts of the seat frame to be welded, providing auxiliary clamping to the upper end of the upper seat frame and auxiliary support to the lower end of the lower seat frame. This solves the problems of traditional technology, where the stability of clamping the two parts of the frame cannot be guaranteed, potentially leading to shaking and displacement during welding; and the poor applicability to frame sizes, often requiring clamp replacement when there are significant differences in frame size, resulting in a cumbersome technical process.
[0006] This utility model provides a clamping device for welding seat frames, comprising:
[0007] The support base has symmetrical sliding locking mechanisms for clamping and positioning upper and lower components on its upper left and right sides, and clamping components are distributed vertically on it.
[0008] A lifting support seat is fixedly assembled in the middle of the bottom surface of the support base;
[0009] The upper end of the clamping and positioning mechanism for the upper and lower components on both sides is slidably equipped with a top lifting clamping mechanism.
[0010] As a further optimization, in order to adjust the distance between the upper and lower component clamping and positioning mechanisms on both sides and to be applicable to seat frames of different sizes within a certain range, the upper and lower sidewalls of the seat frame are clamped and fixed. The upper and lower component clamping and positioning mechanisms include:
[0011] A strip-shaped vertical plate, the lower end of which is slidably engaged with the upper end of the support base;
[0012] The inner side of the strip-shaped vertical plate is uniformly and fixedly assembled with straight modules along the length direction, and the ends of adjacent straight modules are fitted together.
[0013] The inner end of the slider of the linear module is fixedly fitted with a first clamp.
[0014] As a further optimization, in order to clamp and fix the sidewall of the seat frame, the first clamp includes:
[0015] A rectangular block is fixedly assembled to the inner end of the slider of the linear module;
[0016] A horizontal plate is fixedly assembled to the inner end of the rectangular block, and a retaining edge is fixedly assembled to the front and rear edges of its inner side.
[0017] A first screw is screwed to the middle of the outer side of the flange, and a clamping plate is rotatably assembled on its inner end.
[0018] The clamping plate slides against the inner side of the horizontal plate.
[0019] As a further optimization, in order to facilitate the rotation of the first screw, a hand-tightening round cap is fixedly fitted to the outer end of the first screw.
[0020] As a further optimization, in order to ensure the firmness of the upper and lower seat frames by setting multiple linear modules and to keep the welding surfaces of the upper and lower seat frames in a close fit by sliding the sliders of the upper and lower linear modules, the number of linear modules is four.
[0021] As a further optimization, in order to support the seat frame located below, and to more stably clamp the seat frame below in conjunction with the upper and lower clamping and positioning mechanisms on both sides, the lifting support base includes:
[0022] The installation window is located in the middle of the top surface of the support base;
[0023] The first electric push rod is fixedly installed inside the installation window, and a support plate is fixedly installed at its telescopic upper end.
[0024] As a further optimization, in order to use the first rubber pad to provide shock absorption and prevent the seat frame located below from directly contacting the support plate and causing wear, the first rubber pad is attached and fixed to the top surface of the support plate.
[0025] As a further optimization, in order to clamp and position the upper seat frame, and in conjunction with the clamping and positioning mechanisms on both sides to more stably clamp the upper seat frame, the top lifting clamping mechanism includes:
[0026] The top horizontal plate has a first T-shaped groove on its bottom surface along the length direction, and the first T-shaped slider is slidably engaged on both the left and right sides inside it.
[0027] The upper end of the clamping and positioning mechanism for the upper and lower components on both sides is fixedly connected to the lower end of the first T-shaped slider on the same side;
[0028] A second electric push rod is vertically fixedly mounted in the middle of the top surface of the top horizontal plate, and its telescopic lower end passes through the top horizontal plate and is fixedly mounted with a second clamp.
[0029] As a further optimization, in order to support the device, a sliding base is provided for the clamping and positioning mechanisms of the upper and lower components on both sides. The support base includes:
[0030] The flat plate has support legs fixedly mounted on both the left and right sides of its bottom surface.
[0031] The upper surface of the plate is provided with a second T-shaped groove on both the left and right sides, and a second T-shaped slider is slidably engaged in the second T-shaped groove.
[0032] The lower end of the clamping and positioning mechanism of the upper and lower components on both sides is fixedly connected to the upper end of the second T-shaped slider on the same side.
[0033] As a further optimization, a second rubber pad is attached and fixed to the bottom surface of the support leg to provide anti-slip and shock absorption.
[0034] This utility model provides an improved clamping device for welding seat frames, which has the following improvements and advantages compared with the prior art:
[0035] The upper and lower component clamping and positioning mechanisms on both sides are symmetrically slidably engaged on the left and right sides of the upper end of the support base, which facilitates the adjustment of the spacing according to the size of the seat frame. Within a certain range, it is suitable for clamping and fixing seat frames of different sizes without the need to change the clamps, making the operation simpler. The upper and lower component clamping and positioning mechanisms are equipped with multiple clamping components to clamp and fix the upper and lower parts of the seat frame to be welded, keeping the welding surfaces of the two seat frames stable and in close contact. The upper part of the seat frame is clamped by the top lifting clamping mechanism, and the lower part of the seat frame is supported by the lifting support seat, which prevents the welding surfaces of the two seat frames to be clamped from shaking and shifting during the welding process. Attached Figure Description
[0036] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0037] Figure 1 This is a schematic diagram of the structure of this utility model;
[0038] Figure 2 This is a schematic diagram of the upper and lower device clamping and positioning mechanism of this utility model;
[0039] Figure 3 This is a schematic diagram of the first clamp structure of this utility model;
[0040] Figure 4 This is a schematic diagram of the support base and lifting support structure of this utility model;
[0041] Figure 5 This is a schematic diagram of the top lifting and clamping mechanism of this utility model.
[0042] Explanation of reference numerals in the attached figures:
[0043] 1-Support base, 11-Plate, 12-Support leg, 13-Second T-shaped slide rail, 14-Second T-shaped slider, 2-Lifting support seat, 21-Installation window, 22-First electric push rod, 23-Support plate, 24-First rubber pad, 3-Upper and lower component clamping and positioning mechanism, 31-Strip vertical plate, 32-Linear module, 33-First clamp, 331-Horizontal plate, 332-Rectangular block, 333-Side guard, 334-First screw, 335-Clamping plate, 4-Top lifting clamping mechanism, 41-Top horizontal plate, 42-Second electric push rod, 43-First T-shaped slider, 44-Second clamp, 45-First T-shaped slide rail, 5-Second rubber pad. Detailed Implementation
[0044] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0045] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0046] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0047] Please see Figure 1-5 This utility model provides a technical solution: a clamping device for welding seat frames, comprising:
[0048] The support base 1 has upper and lower device clamping and positioning mechanisms 3 that are symmetrically slidably connected to the left and right sides of its upper end, and clamping components are provided on it.
[0049] A lifting support seat 2 is fixedly installed in the middle of the bottom surface of the support base 1;
[0050] The upper end of the two sides upper and lower device clamping and positioning mechanism 3 is slidably equipped with the top lifting clamping mechanism 4.
[0051] Specifically, in this embodiment, the main body of the support base 1 is made of steel and is used to provide a sliding platform for the left and right sides upper and lower device clamping and positioning mechanism 3. The support base 1 has a cavity below it to provide installation space for the lifting support seat 2.
[0052] Furthermore, the upper and lower device clamping and positioning mechanisms 3 on both sides are symmetrically slidably connected to the upper left and right sides of the support base 1, which makes it easy to adjust the spacing according to the size of the seat frame. Within a certain range, it is suitable for clamping and fixing seat frames of different sizes without the need to change the clamps, making the operation simpler.
[0053] More specifically, the upper and lower component clamping and positioning mechanism 3 is equipped with multiple clamping components for clamping and fixing the upper and lower parts of the seat frame to be welded, keeping the upper and lower seat frame surfaces to be welded stably attached. The upper part is clamped to the upper end of the upper seat frame by the top lifting clamping mechanism 4, and supported to the lower end of the lower seat frame by the lifting support seat 2, so as to prevent the clamped upper and lower seat frame surfaces to be welded from shaking and displacement during the welding process.
[0054] Understandably, this device is also suitable for clamping and positioning other appropriately sized devices that require two parts to be welded together.
[0055] In some embodiments, the upper and lower device clamping and positioning mechanism 3 includes:
[0056] The lower end of the strip-shaped vertical plate 31 is slidably snapped onto the upper end of the support base 1;
[0057] Straight modules 32 are uniformly fixedly assembled on the inner side of the strip-shaped vertical plate 31 along the length direction, with adjacent straight modules 32 fitting end to end.
[0058] The inner end of the slider of the linear module 32 is fixedly fitted with a first clamp 33.
[0059] Specifically, in this embodiment, the linear module 32 is connected to an external power supply and an external controller. The controller controls the slider of the linear module 32 to move up and down, thereby moving the first clamp 33.
[0060] Furthermore, the first clamp 33 on the slider of the upper and lower straight modules 32 moves up and down, so that the two seat frames to be welded are in contact. Then, the upper and lower straight modules 32 are no longer adjusted, and this contact state is maintained.
[0061] In some embodiments, the first clamp 33 includes:
[0062] A rectangular block 332 is fixedly assembled to the inner end of the slider of the linear module 32;
[0063] A horizontal plate 331 is fixedly assembled on the inner end of the rectangular block 332, and a flange 333 is fixedly assembled on the front and rear edges of its inner side.
[0064] A first screw 334 is screwed to the middle of the outer side of the flange 333, and a clamping plate 335 is rotatably assembled on its inner end.
[0065] The clamp 335 slides against the inner side of the horizontal plate 331.
[0066] Specifically in this embodiment, rotating the first screw 334 pushes and pulls, causing the clamp 335 connected to its end to slide on the inner side of the horizontal plate 331.
[0067] Furthermore, the two clamping plates 335 move towards each other to clamp the outer wall of the seat frame to be welded, and the two clamping plates 335 move in opposite directions to release the clamping of the seat frame to be welded.
[0068] In some embodiments, a hand-tightening round cap is fixedly fitted to the outer end of the first screw 334. The outer wall of the hand-tightening round cap is provided with anti-slip texture to facilitate gripping and rotating the first screw 334.
[0069] In some embodiments, there are four linear modules 32. Multiple first clamps 33 are set up corresponding to the multiple linear modules 32 to ensure the firmness of the upper and lower seat frames. The sliding of the sliders of the upper and lower linear modules 32 keeps the upper and lower seat frames to be welded in a close fit.
[0070] In some embodiments, the lifting support 2 includes:
[0071] The installation window 21 is located in the middle of the top surface of the support base 1;
[0072] The first electric push rod 22 is fixedly installed inside the installation window 21, and a support plate 23 is fixedly installed at its telescopic upper end.
[0073] Specifically in this embodiment, the first electric push rod 22 is connected to an external power source and an external controller, and the extension stroke is controlled by the controller.
[0074] Furthermore, the first electric push rod 22 extends and retracts, causing the support plate 23 to rise and fall accordingly.
[0075] In some embodiments, a first rubber pad 24 is attached to the top surface of the support plate 23. The first rubber pad 24 plays a shock-absorbing role and prevents the seat frame located below from directly contacting the support plate 23 and causing wear.
[0076] In some embodiments, the top lifting clamping mechanism 4 includes:
[0077] The top horizontal plate 41 has a first T-shaped groove 45 opened along the length direction on its bottom surface, and the first T-shaped slider 43 is slidably engaged on both the left and right sides inside it.
[0078] The upper end of the upper and lower component clamping and positioning mechanism 3 on both sides is fixedly connected to the lower end of the first T-shaped slider 43 on the same side;
[0079] A second electric push rod 42 is vertically fixedly mounted on the middle of the top surface of the top horizontal plate 41, and its lower extension end is fixedly mounted on the second clamp 44 through the top horizontal plate 41.
[0080] Specifically in this embodiment, the second clamp 44 has the same structure as the first clamp 33 and is used to clamp and fix the upper end of the welded seat frame located above.
[0081] Furthermore, the first T-shaped slider 43, which is slidably engaged at the lower end of the top horizontal plate 41, can slide along the upper end of the upper and lower device clamping and positioning mechanism 3 on both sides, so that the top horizontal plate 41 will not obstruct the left and right sliding adjustment of the upper and lower device clamping and positioning mechanism 3 on both sides.
[0082] It is understood that the lateral coverage of the first T-shaped slide 45 is greater than or equal to the coverage of the second T-shaped slides 13 on the left and right sides. In this embodiment, the lateral coverage of the first T-shaped slide 45 is greater than the coverage of the second T-shaped slides 13 on the left and right sides.
[0083] In some embodiments, the support base 1 includes:
[0084] The flat plate 11 has support legs 12 fixedly mounted on both the left and right sides of its bottom surface;
[0085] The upper surface of the plate 11 is provided with a second T-shaped groove 13 on both the left and right sides, and a second T-shaped slider 14 is slidably engaged in the second T-shaped groove 13.
[0086] The lower end of the upper and lower device clamping and positioning mechanism 3 on both sides is fixedly connected to the upper end of the second T-shaped slider 14 on the same side.
[0087] Specifically in this embodiment, the upper and lower device clamping and positioning mechanisms 3 on both sides slide laterally in the corresponding second T-shaped groove 13 on the upper surface of the plate 11 via the second T-shaped slider 14 at the lower end, thereby adjusting the distance between the upper and lower device clamping and positioning mechanisms 3 on both sides.
[0088] In some embodiments, a second rubber pad 5 is attached to the bottom surface of the support leg 12. The second rubber pad 5 serves to prevent slipping and dampen shocks, thereby improving the stability of the device.
[0089] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A clamping device for welding seat frames, characterized in that, include: The support base (1) has a symmetrical sliding latching mechanism (3) for clamping and positioning upper and lower components on its upper left and right sides, and clamping components are distributed on it. The support base (1) is fixedly equipped with a lifting support seat (2) in the middle of its bottom surface. The upper end of the clamping and positioning mechanism (3) of the upper and lower components on both sides is slidably equipped with a top lifting clamping mechanism (4).
2. The clamping device for welding seat frames according to claim 1, characterized in that, The upper and lower device clamping and positioning mechanism (3) includes: A strip-shaped vertical plate (31) has its lower end slidably engaged with the upper end of the support base (1); The inner side of the strip-shaped vertical plate (31) is uniformly fixed with straight modules (32) along the length direction, and the adjacent straight modules (32) are fitted end to end; The inner end of the slider of the linear module (32) is fixedly fitted with a first clamp (33).
3. The clamping device for welding seat frames according to claim 2, characterized in that, The first clamp (33) includes: A rectangular block (332) is fixedly assembled to the inner end of the slider of the linear module (32); A horizontal plate (331) is fixedly assembled on the inner end of the rectangular block (332), and a retaining edge (333) is fixedly assembled on the front and rear edges of its inner side. The first screw (334) is screwed to the middle of the outer side of the flange (333), and a clamp (335) is rotatably assembled on its inner end. The clamp (335) slides against the inner side of the cross plate (331).
4. The clamping device for welding a seat frame according to claim 3, characterized in that, A hand-tightening round cap is fixedly fitted to the outer end of the first screw (334).
5. A clamping device for welding a seat frame according to claim 2, characterized in that, There are four linear modules (32).
6. The clamping device for welding seat frames according to claim 1, characterized in that, The lifting support base (2) includes: The installation window (21) is located in the middle of the top surface of the support base (1); The first electric push rod (22) is fixedly installed inside the installation window (21), and a support plate (23) is fixedly installed at its telescopic upper end.
7. A clamping device for welding a seat frame according to claim 6, characterized in that, The top surface of the support plate (23) is fixed with a first rubber pad (24).
8. A clamping device for welding seat frames according to claim 1, characterized in that, The top lifting clamping mechanism (4) includes: The top horizontal plate (41) has a first T-shaped groove (45) on its bottom surface along the length direction, and the first T-shaped slider (43) is slidably engaged on both the left and right sides inside. The upper end of the clamping and positioning mechanism (3) of the upper and lower components on both sides is fixedly connected to the lower end of the first T-shaped slider (43) on the same side; The top horizontal plate (41) is vertically fixedly fitted with a second electric push rod (42) at the middle of its top surface, and its lower extension end is fixedly fitted with a second clamp (44) through the top horizontal plate (41).
9. A clamping device for welding seat frames according to claim 1, characterized in that, The support base (1) includes: The flat plate (11) has support legs (12) fixedly mounted on both the left and right sides of its bottom surface. The upper surface of the plate (11) is provided with a second T-shaped groove (13) on both the left and right sides, and a second T-shaped slider (14) is slidably engaged in the second T-shaped groove (13). The lower end of the upper and lower device clamping and positioning mechanism (3) on both sides is fixedly connected to the upper end of the second T-shaped slider (14) on the same side.
10. A clamping device for welding a seat frame according to claim 9, characterized in that, The bottom surface of the support leg (12) is fixed with a second rubber pad (5).