Single-head squeeze riveter for assembling automobile seat

By employing a base and detachable positioning fixture structure in a single-head riveting machine, combined with the movement function of a translation cylinder, the problem of increased costs caused by multiple riveting machines is solved, and efficient riveting operations for various seat components are achieved.

CN223970739UActive Publication Date: 2026-03-06WUHAN TIANCHENG AUTOMOTIVE SEAT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

The existing automotive seat riveting machines have poor versatility, which means that multiple riveting machines need to be equipped, increasing production costs.

Method used

Design a single-head riveting machine. By installing a base and positioning fixture at the bottom of the frame, different positioning fixtures can be detachably fixed using locking components. The base can be moved by a translation cylinder to achieve positioning, clamping, and position adjustment of different seat components, thereby improving versatility.

Benefits of technology

This technology enables a single riveting machine to be used for riveting various seat components, reducing production costs and improving the flexibility and efficiency of riveting operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a single-head squeeze riveter for assembling an automobile seat, which comprises a rack, an upper die head, a die head driving cylinder, a base, a positioning clamp and a locking piece, the upper die head is vertically and slidably mounted at the top end of the rack, the die head driving cylinder is connected with the upper die head, first connecting holes are respectively formed in the periphery of the upper end face of the base, and the positioning clamp is connected with the first connecting holes. Second connecting holes penetrating up and down are formed in the periphery of the bottom end face of the positioning clamp; the base is installed at the bottom end of the machine frame, the positioning clamp is detachably and fixedly installed on the base through the locking piece, and when different automobile seat components need to be subjected to press riveting operation, the locking piece can be conveniently loosened, and the corresponding positioning clamp is replaced to the base for locking and fixing; due to the fact that the corresponding positioning clamp can be replaced on one squeeze riveter according to needs, positioning and clamping treatment of parts assembled by different seats can be carried out, the use universality of the squeeze riveter is improved, and the problem that cost is increased due to the fact that a plurality of squeeze riveters need to be arranged is solved.
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Description

Technical Field

[0001] This utility model relates to the field of automotive seat assembly technology, and more specifically to a single-head riveting machine for automotive seat assembly. Background Technology

[0002] Car seats are seats inside a car for passengers to sit on. The assembly of car seats requires the use of a riveting process to connect and fix the seat frame. The riveting process can be used to connect different parts of the seat frame, such as seat rails and car seat back support.

[0003] Meanwhile, in order to ensure the assembly accuracy of different components of the car seat frame during the riveting process, positioning fixtures are usually provided. By using fixtures, the position of the workpiece can be fixed to prevent it from moving or rotating during the riveting process, thereby ensuring the accuracy and consistency of the assembly. In addition, the use of fixtures can also reduce the manual operation intensity of workers and reduce errors caused by human factors.

[0004] In existing technologies, a single riveting machine is typically equipped with a dedicated clamp. Because this clamp is only suitable for clamping a specific component of the automotive seat frame (such as a seat rail), multiple riveting machines are required during automotive seat assembly to meet the riveting needs of different components. Due to the poor versatility of existing riveting machines, the use of multiple machines increases production costs for companies. Utility Model Content

[0005] To address the high production costs resulting from the need for multiple riveting machines due to the poor versatility of existing automotive seat riveting machines, this invention provides a single-head riveting machine for automotive seat assembly.

[0006] To solve the above-mentioned technical problems, this utility model provides a single-head riveting machine for assembling automotive seats, including a frame, an upper die head, a die head drive cylinder, a base, a positioning fixture, and a locking component. The upper die head is vertically slidably mounted on the top of the frame. The die head drive cylinder is connected to the upper die head. The base is mounted on the upper surface of the bottom end of the frame. The upper surface of the base has first connecting holes on all four sides. The bottom surface of the positioning fixture has second connecting holes that extend vertically through all four sides. The upper surface of the base has a positioning pin extending vertically upward. The bottom surface of the positioning fixture has a pin hole that mates with the positioning pin. The first connecting holes and the second connecting holes are aligned. The locking component is locked in the first connecting holes and the second connecting holes.

[0007] In an embodiment of this utility model, a translation cylinder is also included. A slider is installed at the bottom end of the base, and a slide rail is installed on the upper surface of the bottom end of the frame. The slide rail is arranged along the length direction parallel to the upper die head. The slider is slidably installed on the slide rail, and the piston rod of the translation cylinder is fixedly connected to the base.

[0008] In an embodiment of this utility model, cylinder limit switches are respectively installed at both ends of the bottom of the frame along its length.

[0009] In an embodiment of this utility model, handles for easy gripping are fixedly installed on opposite sides of the bottom end of the positioning clamp.

[0010] In an embodiment of this utility model, the locking element is a bolt.

[0011] In an embodiment of this utility model, the tail of the translation cylinder is fixedly installed at one end of the bottom of the frame, and one end of the piston rod of the translation cylinder is installed at the bottom of the base along the length direction parallel to the upper die head.

[0012] In an embodiment of this utility model, a mounting groove is provided on the top surface of the bottom end of the frame. The mounting groove extends along the length direction of the upper mold head, and the translation cylinder is installed in the mounting groove.

[0013] In an embodiment of this utility model, a pair of connecting blocks are also included. Each connecting block is horizontally fixed to the outer side of the bottom end of the positioning fixture by a screw. A pair of handles are respectively fixed to the outer edge of the top surface of the pair of connecting blocks.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. By adopting the above-mentioned single-head riveting machine for automotive seat assembly, a base is installed at the bottom of the frame. The positioning fixture is detachably and fixedly installed on the base using locking components. When different automotive seat parts need to be riveted, the corresponding positioning fixture can be easily replaced by loosening the locking components and locked onto the base. Since the corresponding positioning fixture can be replaced on one riveting machine as needed to perform positioning and clamping processing on different seat assembly parts, the versatility of the riveting machine is improved, and the problem of increased cost caused by the need to equip multiple riveting machines is solved.

[0016] 2. By using a translation cylinder to drive the base to move back and forth linearly along the bottom of the frame, the product parts to be riveted in the positioning fixture installed on the base can be conveniently and quickly adjusted according to the riveting position, so that the riveting part of the product parts can be quickly moved to the bottom of the upper die head for riveting operation, so that a single die head can handle multiple riveting positions of the product parts. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a three-dimensional structural diagram of a single-head riveting machine for assembling automobile seats according to an embodiment of this application.

[0019] Figure 2 This is a three-dimensional structural diagram of the single-head riveting machine for assembling automobile seats in an embodiment of this application, viewed from another angle.

[0020] Figure 3 This is a schematic diagram of the structure of the positioning fixture's base plate and the base in an embodiment of this application.

[0021] Figure 4 A schematic diagram of the main view of a single-head riveting machine for assembling automobile seats in an embodiment of this application.

[0022] Figure 5 for Figure 2 A magnified schematic diagram of the structure at point A in the diagram.

[0023] Figure 6 This is a schematic diagram of the structural state of the slide rail component of the car seat placed on the positioning fixture in the single-head riveting machine in this application embodiment.

[0024] Figure 7 This is a schematic diagram of the structural state of a car seat backrest bracket component placed on the positioning fixture of a single-head riveting machine in an embodiment of this application.

[0025] Explanation of reference numerals in the attached figures

[0026] 10-Single-head riveting machine;

[0027] 20-Slide rail components;

[0028] 30 - Backrest support components;

[0029] 100-Frame, 101-Upper mounting plate, 102-Lower mounting plate, 103-Support column;

[0030] 200-Die Head Drive Cylinder;

[0031] 300 - Upper die head;

[0032] 400 - Base;

[0033] 500 - Positioning fixture, 501 - Base plate, 502 - Pin hole;

[0034] 600 - Locking component;

[0035] 700-Handle;

[0036] 800-slide rail;

[0037] 900-slider;

[0038] 1000-Cylinder limit switch;

[0039] 1100 - Connector Block. Detailed Implementation

[0040] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0041] Please refer to the appendix. Figure 1 To be continued Figure 2 This embodiment provides a single-head riveting machine 10 for assembling automotive seats, including a frame 100, an upper die head 300, a die head drive cylinder 200, a base 400, a positioning fixture 500, and a locking component 600.

[0042] See attached document Figure 1 and attached Figure 2 As shown, the frame 100 provides mounting support for the upper mold head 300, the mold head drive cylinder 200, and the positioning fixture 500. To better understand its function, its structure is briefly described below. In this embodiment, the frame 100 includes an upper mounting plate 101, a lower mounting plate 102, and four support columns 103. The upper mounting plate 101 is positioned directly above the lower mounting plate 102, and the four support columns 103 are respectively located between the upper mounting plate 101 and the lower mounting plate 102, with the upper and lower ends of the support columns 103 fixed to the upper connecting plate and the lower connecting plate respectively.

[0043] Continue to refer to the appendix Figure 1 and attached Figure 2 As shown, the upper mold head 300 is slidably mounted on the upper mounting plate 101. The upper mold head 300 can slide up and down relative to the upper mounting plate 101. The mold head drive cylinder 200 is fixedly mounted on the top surface of the upper mounting plate 101, and the piston rod of the mold head drive cylinder 200 is fixedly connected to the upper mold head 300 to drive the upper mold head 300 to slide up and down.

[0044] Continue to refer to the appendix Figure 1 To be continued Figure 3As shown, the base 400 is disposed at the bottom end of the frame 100, specifically, the base 400 is mounted on the top surface of the lower mounting plate 102. In this embodiment, the base 400 has a flat surface structure, and the size of the base 400 is the same as the size of the lower mounting plate 102. The flat surface structure of the base 400 facilitates the subsequent installation of the positioning fixture 500 on it.

[0045] See attached document Figure 1 To be continued Figure 3 As shown, in this embodiment, the upper end face of the base 400 is provided with a vertically upward extending positioning pin, and the bottom end face of the positioning clamp 500 is provided with a pin hole that mates with the positioning pin. A first connecting hole, which is a threaded hole, is provided at the four corners of the top surface of the base 400. Correspondingly, a second connecting hole, which is a through hole extending vertically, is provided at the four corners of the base plate of the positioning clamp 500. When the positioning clamp 500 is installed on the base 400, the pin hole on the base plate of the positioning clamp 500 is inserted into the positioning pin hole on the lower base 400 to achieve positioning and installation of the positioning clamp 500 on the base 400. Simultaneously, the second connecting hole on the base plate of the positioning clamp 500 is aligned with the first connecting hole on the lower base 400. After the first connecting hole and the second connecting hole are aligned, a locking member 600 is inserted into the second connecting hole and locked, thus fixing the positioning clamp 500 on the base 400. In some embodiments, the locking member 600 is a bolt. By inserting the bolt into the first connecting hole and the second connecting hole and rotating the bolt to lock it, the positioning clamp 500 can be easily and quickly and securely installed on the base 400.

[0046] By adding a base 400 at the bottom of the frame 100, and opening a first connecting hole and a second connecting hole around the base plate of the base 400 and the positioning clamp 500 respectively, and locking the two together detachably using a locking member 600; this structure allows the positioning clamp 500 used for clamping and positioning different parts of the car seat to have a second connecting hole around its base plate, thus standardizing the positioning clamp 500 used for clamping and positioning different parts of the car seat. Therefore, when changing different positioning clamps 500, it is convenient and quick to install the required positioning clamp 500. The positioning fixture 500 is quickly installed on the base 400. Because the positioning fixture 500 for different parts of the car seat can be replaced, the versatility of the entire single-head riveting machine is improved. When riveting different parts of the car seat, the corresponding positioning fixture 500 on a single riveting machine can be replaced to perform riveting operations on different parts of the car seat, achieving a multi-purpose effect. This solves the problem of increased production costs caused by the need for multiple riveting machines to be used separately for riveting different parts of the car seat. Furthermore, since the modification cost is relatively low due to the addition of the base 400 and the opening of connecting holes in the base plate of the positioning fixture 500, it is beneficial to the promotion of this modification technology.

[0047] Combined with reference to the appendix Figure 1 To be continued Figure 4 As shown, a translation cylinder is also installed at the bottom of the base 400. The translation cylinder is used to drive the base 400 to move telescopically relative to the bottom of the frame 100, so as to drive the positioning fixture 500 on the base 400 to move laterally, so as to meet the requirement that when there are multiple riveting positions on the automotive seat product parts placed on the positioning fixture 500, they can be moved and riveted sequentially.

[0048] See attached document Figure 6 and attached Figure 7 As shown, different car seat components are placed on the positioning fixture 500. Figure 6 The positioning clamp 500 in the middle is equipped with a slide rail component 20 for a car seat. Figure 7 The positioning fixture 500 holds the backrest support component 30 of the car seat. When riveting different car seat components, the riveting positions on different car seat components are different (it should be noted that the difference in riveting positions is only in the lateral direction. The existing positioning fixture 500 has taken into account that the position of the upper die head 300 in the riveting machine cannot move left, right, forward, or backward. Therefore, the riveting positions on the car seat components are designed to be arranged in the lateral direction). At this time, it is necessary to move the base 400 laterally by means of a translation cylinder according to the lateral direction of the riveting position, and perform riveting operations on one or more riveting positions on the car seat components in sequence.

[0049] Specifically, a slide rail 800 is installed on the top surface of the bottom end (lower mounting plate 102) of the frame 100 along the length of the upper template, and a slider 900 is installed on the bottom surface of the base 400. The base 400 is slidably mounted on the slide rail 800 via the slider 900, so that the base 400 can slide laterally back and forth relative to the bottom end of the frame 100.

[0050] Continue to refer to the appendix Figure 1 To be continued Figure 4 As shown, the translation cylinder is arranged between the base 400 and the bottom end face of the frame 100. That is, the tail of the translation cylinder is fixedly installed at one end of the bottom of the frame 100, and one end of the piston rod of the translation cylinder is installed at the bottom of the base 400 along the length direction parallel to the upper die head 300. This arrangement can make full use of the space formed by the slider 900 at the base 400 and the slide rail 800 installed at the bottom of the frame 100, making the whole structure more compact.

[0051] Combined with reference to the appendix Figure 2 and attached Figure 5 As shown, in order to better accommodate the installation of translation cylinders, for example, for translation cylinders with larger height dimensions, since they require more installation space in the height direction, an installation groove is provided on the top surface of the bottom end of the frame 100. The installation groove extends along the length direction of the upper mold head 300 (i.e., the same as the installation direction of the translation cylinder). The installation groove increases the height of the space formed between the base 400 and the bottom end of the frame 100, which is more conducive to the installation of the translation cylinder between the base 400 and the bottom end of the frame 100.

[0052] See attached document Figure 3 and attached Figure 4 As shown, cylinder limit switches 1000 are installed at both ends of the bottom of the frame 100 along its length. The cylinder limit switches 1000 are set to ensure the normal operation of the translation cylinder and prevent the piston rod of the translation cylinder from exceeding the stroke range, thus playing a protective role.

[0053] See attached document Figure 2 Appendix Figure 3 and appendix Figure 5 As shown, to facilitate the operator's replacement of the positioning clamp 500, handles 700 are fixedly installed on opposite sides of the bottom of the positioning clamp 500 for easy gripping. When replacing the positioning clamp 500, the operator first loosens the locking member 600 between the positioning clamp 500 and the base 400. After the locking member 600 is loosened, the operator can use both hands to hold the handles 700 and remove the positioning clamp 500 as a whole for replacement.

[0054] See attached document Figure 3 and attached Figure 5As shown, in this embodiment, the handle 700 is installed on the positioning fixture 500 by means of a pair of connecting blocks 1100. Each connecting block 1100 is horizontally fixed to the outer side of the bottom end of the positioning fixture 500 by means of screws. The pair of handles 700 are respectively fixed to the outer edge of the top surface of the pair of connecting blocks 1100.

[0055] In the above structure, by installing the handle 700 on the outer edge of the connecting block 1100, the gap between the handle 700 and the positioning clamp 500 can be increased, making it easier for the operator to hold the handle 700 and operate it. In addition, this method of installing the handle 700 on the outer edge of the positioning clamp 500 by means of the connecting block 1100 also makes it easier to modify the existing positioning clamp 500 and reduce the modification cost.

[0056] In this utility model, unless otherwise explicitly specified and limited, the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. "Above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top," and "on the surface" can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature, and therefore should not be construed as a limitation of this utility model.

[0057] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings; however, the present invention is not limited thereto. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, including the combination of various specific technical features in any suitable manner. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.

[0058] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A single head riveter for automotive seat assembly, characterized by, The utility model provides a mould head driving device, including frame, upper die head, die head drive cylinder, base, positioning clamp and locking piece, the upper die head vertical sliding installation is in the top of frame, die head drive cylinder is connected with upper die head, the base is installed in the upper end surface of bottom end of frame, the upper end surface of base is equipped with first connecting hole respectively around, the bottom end surface of positioning clamp is equipped with second connecting hole respectively around and penetrates up and down, the upper end surface of base is equipped with the vertical upward extension's positioning pin, the bottom end surface of positioning clamp is equipped with the pinhole that cooperates with positioning pin, first connecting hole and second connecting hole's position are aligned, locking piece locking installation is in first connecting hole and second connecting hole.

2. A single head riveter for assembling a car seat according to claim 1, wherein Still include translation cylinder, the bottom end of base is installed with sliding block, the upper end surface of bottom end of frame is installed with slide rail, the slide rail is arranged along the length direction parallel to upper die head, the sliding block is slidably installed on slide rail, the piston rod of translation cylinder is fixedly connected with base.

3. A single-end rivet press for assembling a car seat according to claim 2, wherein The bottom end of frame is installed with cylinder limit switch along the length direction of both ends respectively.

4. A single-end rivet press for assembling a car seat according to claim 1 or 2 or 3, characterized in that, The bottom end opposite side of positioning clamp is fixedly installed with the handle convenient to hold respectively.

5. A single head riveter for assembling a car seat as claimed in claim 1, wherein, The locking piece is bolt.

6. A single-end riveter for assembling a seat of an automobile according to claim 2, wherein The tail of translation cylinder is fixedly installed in one end of bottom end of frame, and one end of piston rod of translation cylinder is installed in the bottom end of base along the length direction parallel to upper die head.

7. A single-end rivet press for assembling a car seat according to claim 6, wherein The top surface of bottom end of frame is equipped with installation groove, and the installation groove extends along the length direction of upper die head, and the translation cylinder is installed in the installation groove.

8. A single-end rivet press for assembling a car seat according to claim 4, wherein Still include a pair of connecting blocks, each connecting block is horizontally fixedly installed on the outer side surface of the bottom end of positioning clamp by the screw, and a pair of handles are fixedly installed on the outer side edges of the top surface of a pair of connecting blocks respectively.