Passenger car framework skin fastening device
By designing a passenger car skeleton fastener device including a fixed base, an electric retractable rod, a flattening mechanism, and a stretching mechanism, the problem of being difficult to fit the passenger car skeleton without adding additional forces, and achieves it. The flat and tight stretching of leather materials improves welding quality and passenger performance.
Patent Information
- Application Number
- CN202421016810.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-11
AI Technical Summary
During the existing bus production process, the skin material is prone to bend or deformed naturally without applying additional force, and it is difficult to fit uniformly and closely to the complex three-dimensional curved structure of the bus skeleton, resulting in increased welding difficulty and unstable weld quality. , affects the strength and safety of the passenger bus.
Design a passenger -car skeleton skin fastener device, including a fixed base, an electric retractable rod, a flattening mechanism, and a stretching mechanism. The leather material is crushed and flattened, and the stretching mechanism is clamped and stretched out the leather material after the flat.
It effectively solves the problem of the difficulty of fitting the buses and the skin. It can accurately control the tightness of the skin before welding, and ensure that the skin is always closely fitted with the skeleton during the welding process, which improves the welding quality and the overall performance of the passenger car Essence
Smart Images
Figure CN222404132U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fastening devices, in particular to a fastening device for a passenger car frame skin. Background Art
[0002] With the development of the bus manufacturing industry, the bus body structure design and manufacturing process are becoming increasingly sophisticated, among which the assembly quality between the bus frame and the skin plays a vital role in the overall performance and appearance quality of the bus. As the core structure that bears and supports the entire body, the bus frame usually needs to be covered with a layer of skin with good rigidity and toughness to achieve streamlined appearance design, sealing and weather resistance.
[0003] However, in the existing bus production process, since the bus skin material is generally made of metal sheets or composite materials, these materials are prone to natural bending or deformation without applying additional force, especially when laid continuously over a large area, it is difficult to evenly and tightly fit the complex three-dimensional curved surface structure of the bus frame. In traditional welding processes, this non-fitting phenomenon will increase the difficulty of welding, the quality of the weld will be unstable, and the overall strength and safety of the bus will be affected. Therefore, it is necessary to propose a bus frame skin fastening device to solve the above-mentioned device. Utility Model Content
[0004] In view of the problems in the related technology, the utility model proposes a bus frame skin fastening device to overcome the above technical problems existing in the existing related technology.
[0005] To this end, the specific technical solutions adopted by the utility model are as follows:
[0006] A passenger car frame skin fastening device comprises a fixed base, positioning rods are fixedly connected to both sides of the surface of the fixed base, an electric telescopic rod is fixedly installed on the surface of the positioning rod, an extrusion plate is fixedly connected to the end of the electric telescopic rod, transmission grooves are opened on both side surfaces of the fixed base, a flattening mechanism is arranged in the transmission groove, a support plate is fixedly connected to one side of the bottom surface of the fixed base, and a stretching mechanism is installed on one side of the support plate.
[0007] Furthermore, in order to achieve the smooth unfolding of the skin material, the flattening mechanism includes a transmission motor 1 fixedly installed on one end of the fixed base, a threaded transmission rod 1 is fixedly connected to the transmission shaft of the transmission motor 1, one end of the threaded transmission rod 1 is rotatably installed on the surface of the support plate, a moving rod is threadedly connected to the surface of the threaded transmission rod 1, and a rolling rod is rotatably installed above the moving rod.
[0008] Furthermore, in order to achieve the ability for the rolling rod and the moving rod to rotate and open, a rotation groove is opened on one side of the moving rod, one end of the rolling rod is rotatably installed in the rotation groove, and a limiting groove is opened on the other side of the moving rod, the other end of the rolling rod cooperates with the limiting groove, and one end of the limiting groove and the rolling rod that cooperate is threadedly connected with a positioning bolt.
[0009] Furthermore, in order to stretch the skin material after rolling and unfolding, the stretching mechanism includes a stretching frame slidably installed on one side of the fixed base, sliding rods are fixedly connected on both sides of the surface of the stretching frame, sliding grooves are opened on both sides of the surface of the fixed base, the sliding rods are cooperated and installed in the sliding grooves, and a transmission motor 2 is fixedly installed on the bottom surface of the stretching frame, and a threaded transmission rod 2 is fixedly connected to the transmission shaft of the transmission motor 2, and the threaded transmission rod 2 is threadedly connected to the support plate.
[0010] Furthermore, in order to achieve extrusion and clamping when stretching the skin material, two positioning rods are fixedly connected to both sides of the surface of the stretching frame, and two electric telescopic rods are fixedly installed on one side surface of the two positioning rods, and two extrusion plates are fixedly connected to the end of the two electric telescopic rods.
[0011] Furthermore, in order to achieve stable support for the fixed base, support columns are fixedly connected to both sides of the bottom surface of the fixed base.
[0012] Furthermore, in order to increase the friction force when clamping the skin material, anti-slip grooves are provided on the surfaces of the fixed base and the stretching frame.
[0013] Furthermore, in order to control the switches of various electrical components in the device, a multi-control switch is fixedly installed on one side surface of the fixed base.
[0014] The beneficial effects of the utility model are as follows: one end of the skin material is placed on the surface of the fixed base, the electric telescopic rod drives the extrusion plate to move downward, one end of the skin material is clamped and fixed, the skin material is rolled and flattened by the flattening mechanism, and then the skin material is clamped and stretched by the stretching mechanism, so that the skin material remains flat, and the bus frame is placed on the surface of the skin material for welding, which effectively solves the problem of difficulty in fitting the bus frame and the skin, can accurately control the skin tension before welding, and can ensure that the skin always remains in close fit with the frame during welding. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0016] Figure 1 It is a schematic diagram of the surface structure of a passenger car frame skin fastening device according to an embodiment of the utility model;
[0017] Figure 2 It is a side view of a passenger car frame skin fastening device according to an embodiment of the utility model;
[0018] Figure 3 yes Figure 2 The enlarged schematic diagram at A in the middle;
[0019] Figure 4 The present invention is a bottom view of a passenger car frame skin fastening device according to an embodiment of the present utility model.
[0020] In the figure:
[0021] 1. Fixed base; 2. Positioning rod 1; 3. Electric telescopic rod 1; 4. Extrusion plate 1; 5. Transmission slot; 6. Rolling mechanism; 601. Transmission motor 1; 602. Threaded transmission rod 1; 603. Moving rod; 604. Rolling rod; 605. Rotation slot; 606. Limiting slot; 607. Positioning bolt; 7. Support plate; 8. Stretching mechanism; 801. Stretching frame; 802. Sliding rod; 803. Sliding slot; 804. Transmission motor 2; 805. Threaded transmission rod 2; 806. Positioning rod 2; 807. Electric telescopic rod 2; 808. Extrusion plate 2; 9. Support column; 10. Anti-slip pattern; 11. Multi-control switch. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] See also Figure 1-Figure 4The utility model provides a technical solution: a passenger car skeleton skin fastening device, comprising a metal rectangular fixed base 1, a pair of positioning rods 2 are fixedly connected on both sides of the surface of the fixed base 1, and electric telescopic rods 3 are fixedly installed on the surfaces of the two positioning rods 2, and the ends of the electric telescopic rods 3 are fixedly connected with extrusion plates 4, and the two ends of the extrusion plates 4 are respectively connected to the two electric telescopic rods, and the extrusion plates 4 are driven to move up and down by the extension and contraction of the electric telescopic rods; transmission grooves 5 are opened on the surfaces of both sides of the fixed base 1, and a rolling mechanism 6 is arranged in the transmission grooves 5, which is used to roll and flatten the skin material; a support plate 7 is fixedly connected to one side of the bottom surface of the fixed base 1, and a stretching mechanism 8 is installed on one side of the support plate 7, which is used to clamp and stretch the flattened skin material; the rolling mechanism 6 includes a transmission motor 601 fixedly installed on the bottom surface of one end of the fixed base 1 close to the positioning rod 2, and a transmission shaft of the transmission motor 601 is fixedly connected to the transmission shaft of the transmission motor 601. A threaded transmission rod 602 is connected, one end of which is rotatably mounted on the surface of the support plate 7, a moving rod 603 is threadedly connected to the surface of the threaded transmission rod 602, and a rolling rod 604 is rotatably mounted above the moving rod 603. Through the rotation of the transmission motor 601, the threaded transmission rod 602 drives the moving rod 603 and the rolling rod 604 to move horizontally, so as to flatten the skin material on the surface of the fixed base 1; a rotating groove 605 is provided on one side of the moving rod 603, one end of the rolling rod 604 is rotatably mounted in the rotating groove 605, and a limiting groove 606 is provided on the other side of the moving rod 603, the other end of the rolling rod 604 cooperates with the limiting groove 606, and one end of the limiting groove 606 and the rolling rod 604 that cooperates is threadedly connected with a positioning bolt 607, and by disassembling the positioning bolt 607, the rolling rod 604 and the moving rod 603 can be rotated to open or close on the surface of the fixed base 1.
[0024] See also Figure 1-Figure 4The stretching mechanism 8 includes a stretching frame 801 slidably installed on one side of the fixed base 1, a pair of sliding rods 802 are fixedly connected to the surface of the stretching frame 801 on both sides, and a pair of sliding grooves 803 are opened on both sides of the surface of the fixed base 1. The sliding rods 802 are matched and installed in the sliding grooves 803 for sliding connection between the stretching frame 801 and the fixed base 1; a transmission motor 804 is fixedly installed on the bottom surface of the stretching frame 801, and a threaded transmission rod 805 is fixedly connected to the transmission shaft of the transmission motor 804. The threaded transmission rod 805 is threadedly connected to the support plate 7, and the threaded transmission rod 805 is driven by the transmission motor 804 to rotate, so that the stretching frame 801 moves at one end of the fixed base 1; a pair of positioning rods 806 are fixedly connected to the surface of the stretching frame 801 on both sides, and the two positioning rods 806 are fixedly connected. One side surface of the fixed base 1 is fixedly installed with an electric telescopic rod 807, and the end of the electric telescopic rod 807 is fixedly connected with an extrusion plate 808. The extrusion plate 808 is driven by the extension and retraction of the electric telescopic rod 807 to move up and down, so as to extrude and clamp the flattened skin material; support columns 9 are fixedly connected to both sides of the bottom surface of the fixed base 1 for stably supporting the fixed base 1; anti-slip grooves 10 are provided on the surfaces of the fixed base 1 and the stretching frame 801 at the positions corresponding to the extrusion plate 4 and the extrusion plate 808, so as to increase the friction force when the skin material is extruded and clamped; a multi-control switch 11 is fixedly installed on the surface of one side of the fixed base 1, and the multi-control switch 11 is electrically connected to the fixed base 1 and various electrical components on the stretching frame 801 through wires, so as to control various electrical components in the device.
[0025] In summary, with the aid of the above technical solution of the utility model, one end of the skin material is placed directly below the extrusion plate 4, and the extrusion plate 4 is driven to move downward by the extension of the electric telescopic rod 3, so that one end of the skin material is extruded and limited to prevent it from moving, and the rolling rod 604 is rotated so that its end is fitted in the limiting groove 606, and after it is fixed by screwing the positioning bolt 607, the transmission motor 601 is started, and the transmission motor 601 drives the threaded transmission rod 602 to rotate, so that the threaded transmission rod 602 drives the moving rod 603 in the transmission groove 5 to move horizontally toward the direction of the stretching frame 801, Thereby, after the rolling rod 604 moves, the skin material on the surface of the fixed base 1 is rolled and flattened. When the rolling rod 604 moves to one side of the stretching frame 801, one end of the flattened skin material is placed directly below the extrusion plate 808, and the electric telescopic rod 807 is started to drive the extrusion plate 808 to move downward to extrude and clamp the end of the skin material. Then the transmission motor 804 is started. The transmission motor 804 is connected to the threaded support plate 7 through the threaded transmission rod 805, so that the stretching frame 801 moves away from the fixed base 1, thereby stretching the skin material on the surface of the fixed base 1.
[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A passenger car frame skin fastening device, characterized in that: The invention comprises a fixed base (1), wherein positioning rods (2) are fixedly connected to both sides of the surface of the fixed base (1), an electric telescopic rod (3) is fixedly installed on the surface of the positioning rod (2), and an extrusion plate (4) is fixedly connected to the end of the electric telescopic rod (3), transmission grooves (5) are opened on both side surfaces of the fixed base (1), and a flattening mechanism (6) is arranged in the transmission groove (5), and a support plate (7) is fixedly connected to one side of the bottom surface of the fixed base (1), and a stretching mechanism (8) is installed on one side of the support plate (7).
2. A passenger car frame skin fastening device according to claim 1, characterized in that: The rolling mechanism (6) comprises a transmission motor (601) fixedly mounted on one end of a fixed base (1); a threaded transmission rod (602) is fixedly connected to a transmission shaft of the transmission motor (601); one end of the threaded transmission rod (602) is rotatably mounted on the surface of a support plate (7); a moving rod (603) is threadedly connected to the surface of the threaded transmission rod (602); and a rolling rod (604) is rotatably mounted above the moving rod (603).
3. A passenger car frame skin fastening device according to claim 2, characterized in that: A rotation groove (605) is provided on one side of the moving rod (603), one end of the rolling rod (604) is rotatably installed in the rotation groove (605), a limiting groove (606) is provided on the other side of the moving rod (603), the other end of the rolling rod (604) is matched with the limiting groove (606), and one end of the limiting groove (606) and the rolling rod (604) that are matched are threadedly connected with a positioning bolt (607).
4. A passenger car frame skin fastening device according to claim 1, characterized in that: The stretching mechanism (8) comprises a stretching frame (801) slidably mounted on one side of a fixed base (1); sliding rods (802) are fixedly connected to both sides of the surface of the stretching frame (801); sliding grooves (803) are provided on both sides of the surface of the fixed base (1); the sliding rods (802) are cooperatively mounted in the sliding grooves (803); a second transmission motor (804) is fixedly mounted on the bottom surface of the stretching frame (801); a second threaded transmission rod (805) is fixedly connected to the transmission shaft of the second transmission motor (804); and the second threaded transmission rod (805) is threadedly connected to the support plate (7).
5. A passenger car frame skin fastening device according to claim 4, characterized in that: Positioning rods 2 (806) are fixedly connected to both sides of the surface of the stretching frame (801), and electric telescopic rods 2 (807) are fixedly installed on one side surface of the positioning rods 2 (806), and the ends of the electric telescopic rods 2 (807) are fixedly connected to extrusion plates 2 (808).
6. A passenger car frame skin fastening device according to claim 1, characterized in that: Support columns (9) are fixedly connected to both sides of the bottom surface of the fixed base (1).
7. A passenger car frame skin fastening device according to claim 1, characterized in that: Anti-slip grooves (10) are provided on the surfaces of the fixed base (1) and the stretching frame (801).
8. A passenger car frame skin fastening device according to claim 1, characterized in that: A multi-control switch (11) is fixedly mounted on one side of the surface of the fixed base (1).