Clamping device for automobile left doorsill boundary beam outer plate machining
By designing a multi-angle adjustable clamping device, the problem of limited applicability of existing devices is solved, and effective clamping of irregularly shaped threshold panels is achieved, thus expanding the scope of application.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO JINPENG LIANCHUANG MASCH TECH CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-01
AI Technical Summary
The existing clamping device for processing the outer panel of the left door sill beam of automobiles cannot adapt to the irregular shape and different models of door sill outer panels, and its application range is relatively small.
A clamping device comprising a base, a lifting mechanism, a translation mechanism, and a horizontal rotation mechanism was designed. The lifting plate is driven by a hydraulic cylinder, and the clamping clamps can be adjusted at multiple angles in the horizontal and vertical directions by means of a worm gear and a lead screw meshing tooth block, so as to adapt to the outer door panels of different shapes.
The applicability of the clamping device has been expanded to accommodate more shaped door sill plates, improving processing flexibility and scope of application.
Smart Images

Figure CN224182907U_ABST
Abstract
Description
A clamping device for processing the outer panel of the left door sill beam of an automobile Technical Field
[0001] This utility model relates to the field of automotive parts processing, and in particular to a clamping device for processing the outer panel of the left door sill beam of an automobile. Background Technology
[0002] The crossbeam under a car door, known as the sill beam or sill plate, is a crucial part of the vehicle's structure. Located below the door, it serves as a key support point for the vehicle's body structure, significantly impacting its rigidity, safety, and protective performance. The sill plate is typically made of metal materials such as steel or aluminum alloy. These materials possess high strength and corrosion resistance, effectively protecting the vehicle's side sill. In the event of a side collision, the sill plate can absorb some of the impact energy, reducing injury to occupants. Furthermore, the sill plate enhances the overall aesthetics of the vehicle, making it more visually appealing. Clamping devices are required during the manufacturing process of the sill plate.
[0003] For example, patent document CN212497389U discloses a clamping device for processing the outer panel of the left sill beam of an automobile. After adjusting the position of the moving rod according to the different lengths of the outer panel, the pin is lowered. The pin passes through the through hole and the fixing hole, which locks the position of the moving rod. When the clamping points of the outer panel of the left sill beam of an automobile are not on the same straight line, the locking bolt can be loosened, which loosens the connection between the moving block and the bracket, and the moving block can be moved. The first track and the second slide cooperate with each other, which can control the moving block to move along the track, thus causing the two clamping clamps to be misaligned.
[0004] However, since the sill plate itself is irregularly shaped and the shape of the sill plate of each car model is basically different, the shape of the sill plate is very diverse. The clamp also needs to have the function of generating angular offset in the horizontal and vertical directions. However, the clamp in the above patent can only achieve lateral and longitudinal translation, so its applicable scope is small. Summary of the Invention
[0005] The purpose of this utility model is to provide a clamping device for processing the outer panel of the left door sill beam of an automobile in order to solve the above-mentioned problems.
[0006] This utility model achieves the above objectives through the following technical solutions:
[0007] A clamping device for processing the outer panel of the left door sill beam of an automobile includes a base, with rollers installed at the bottom of the base, and lifting mechanisms at both ends of the top of the base. A translation mechanism is installed at the top of the lifting mechanism, and a horizontal rotation mechanism is installed on the translation mechanism. A mounting seat is installed at the top of the horizontal rotation mechanism. The horizontal rotation mechanism is used to drive the mounting seat to rotate. A lead screw is threadedly connected inside the mounting seat. One end of the lead screw extends out of the mounting seat and is fixed with a second handwheel. A translation meshing tooth block is rotatably connected to the end of the lead screw inside the mounting seat. The translation meshing tooth block is slidably connected inside the mounting seat in the left and right direction. A mounting shaft is rotatably connected to the two mounting seats that are close to each other. A rotating meshing tooth block is fixed to one end of the mounting shaft inside the mounting seat, and a clamping clamp is fixedly installed at the other end of the mounting shaft.
[0008] Preferably, the horizontal rotation mechanism includes a U-shaped frame, which is mounted on the translation mechanism. A worm gear is rotatably connected between the two side walls of the U-shaped frame. A first handwheel is fixed to one end of the worm gear, and the worm gear meshes with a worm wheel. A rotating shaft is fixed inside the worm wheel. The bottom end of the rotating shaft is rotatably connected to the U-shaped frame, and the top end of the rotating shaft is fixedly connected to the mounting base.
[0009] Preferably, the translation mechanism includes a transverse guide rail, which is installed at the top of the lifting mechanism. A first slider is slidably connected inside the transverse guide rail. A longitudinal guide rail is fixed to the top of the first slider. The transverse guide rail and the longitudinal guide rail are perpendicular to each other. A second slider is slidably connected inside the longitudinal guide rail. A U-shaped frame is fixed to the top of the second slider.
[0010] Preferably, the lifting mechanism includes a hydraulic cylinder, which is fixed to the top of the base, and a lifting plate is fixed to the top of the output end of the hydraulic cylinder, with a transverse guide rail fixed to the top of the lifting plate.
[0011] Preferably, the base is equipped with casters.
[0012] Preferably, the mounting base has a guide groove extending in the left and right direction inside, and a guide block is fixed on the outer wall of the translational meshing tooth block, with the guide block slidingly engaging with the guide groove.
[0013] The beneficial effects are as follows: the mounting shaft allows the clamp to rotate in a vertical plane, and the lead screw drives the translational meshing teeth to move. When the translational meshing teeth and the rotating meshing teeth are engaged, the mounting shaft is locked and cannot rotate, keeping the clamp stationary. By setting a horizontal rotation mechanism, the clamp can swing in a horizontal plane, thereby adjusting the position of the clamp relative to the sill plate. This makes it suitable for sill plates of more shapes and has a wider range of applications.
[0014] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description
[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0016] Figure 1 is a perspective view of a clamping device for processing the outer plate of the left door sill beam of an automobile according to the present invention.
[0017] Figure 2 is a front view of a clamping device for processing the outer plate of the left sill beam of an automobile according to the present invention.
[0018] Figure 3 is a perspective view of the rotating mechanism of the clamping device for processing the outer plate of the left sill beam of an automobile according to the present invention.
[0019] Figure 4 is a front sectional view of the mounting base of the clamping device for processing the outer plate of the left sill beam of an automobile according to the present invention.
[0020] Figure 5 is a perspective view of the translational meshing tooth block and the rotary meshing tooth block of the clamping device for processing the outer plate of the left sill beam of an automobile according to the present invention.
[0021] Figure 6 is a perspective view of the lifting mechanism and translation mechanism of the clamping device for processing the outer plate of the left door sill beam of an automobile according to the present invention.
[0022] The reference numerals in the attached drawings are explained as follows: 1. Base; 101. Roller; 2. Lifting mechanism; 201. Hydraulic cylinder; 202. Lifting plate; 3. Translation mechanism; 301. Horizontal guide rail; 302. First slider; 303. Longitudinal guide rail; 304. Second slider; 4. Horizontal rotation mechanism; 401. U-shaped frame; 402. Worm gear; 403. First handwheel; 404. Worm wheel; 405. Rotating shaft; 5. Mounting seat; 501. Lead screw; 502. Second handwheel; 503. Translation meshing gear block; 504. Mounting shaft; 505. Rotation meshing gear block; 506. Guide groove; 507. Guide block; 6. Clamping clamp. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.
[0025] The present invention will be further described below with reference to the accompanying drawings:
[0026] As shown in Figures 1-6, a clamping device for processing the outer panel of the left sill beam of an automobile includes a base 1. Rollers 101 are mounted on the bottom of the base 1 to facilitate movement of the device. Lifting mechanisms 2 are provided at both ends of the top of the base 1. A translation mechanism 3 is provided on the top of the lifting mechanism 2. A horizontal rotation mechanism 4 is provided on the translation mechanism 3. A mounting seat 5 is provided on the top of the horizontal rotation mechanism 4. The horizontal rotation mechanism 4 drives the mounting seat 5 to rotate. A lead screw 501 is threadedly connected inside the mounting seat 5. One end of the lead screw 501 extends out of the mounting seat 5 and is fixed to a second handwheel 502 by screws. The end of the lead screw 501 located inside the mounting seat 5 is rotatably connected to translation meshing teeth. Block 503, the translational meshing tooth block 503 is slidably connected inside the mounting base 5 in the left and right direction. The two mounting bases 5 are rotatably connected to the end of the two mounting bases 5 that are close to each other. The end of the mounting shaft 504 located inside the mounting base 5 is fixed with a rotating meshing tooth block 505. When the lead screw 501 rotates, it will drive the translational meshing tooth block 503 to move. When the translational meshing tooth block 503 and the rotating meshing tooth block 505 are engaged, the mounting shaft 504 cannot rotate. The other end of the mounting shaft 504 is fixedly mounted with a clamping clamp 6. When the translational meshing tooth block 503 and the rotating meshing tooth block 505 are disengaged, the mounting shaft 504 can rotate freely, so that the clamping clamp 6 can rotate freely.
[0027] The horizontal rotation mechanism 4 includes a U-shaped frame 401, which is mounted on the translation mechanism 3. A worm gear 402 is rotatably connected between the two side walls of the U-shaped frame 401 via bearings. One end of the worm gear 402 is fixed with a first handwheel 403 by screws. The worm gear 402 meshes with a worm wheel 404. A rotating shaft 405 is fixed inside the worm wheel 404. The bottom end of the rotating shaft 405 is connected to the U-shaped frame 401 via bearings, and the top end of the rotating shaft 405 is fixedly connected to the mounting base 5. The worm gear 402 drives the worm wheel 404 and the rotating shaft 405 to rotate, which in turn drives the mounting base 5 to rotate, thereby causing the clamping clamp 6 to swing in the horizontal plane.
[0028] The translation mechanism 3 includes a transverse guide rail 301, which is installed at the top of the lifting mechanism 2. A first slider 302 is slidably connected inside the transverse guide rail 301. A longitudinal guide rail 303 is fixed to the top of the first slider 302. The first slider 302 cooperates with the transverse guide rail 301, allowing the longitudinal guide rail 303 to translate in the left and right directions. The transverse guide rail 301 and the longitudinal guide rail 303 are perpendicular to each other. A second slider 304 is slidably connected inside the longitudinal guide rail 303. A U-shaped frame 401 is fixed to the top of the second slider 304. The second slider 304 cooperates with the longitudinal guide rail 303, allowing the U-shaped frame 401 to translate in the front and back directions. In this way, the clamping clamp 6 can be translated laterally and vertically.
[0029] The lifting mechanism 2 includes a hydraulic cylinder 201, which is fixed to the top of the base 1. A lifting plate 202 is fixed to the top of the output end of the hydraulic cylinder 201. A transverse guide rail 301 is fixed to the top of the lifting plate 202. The lifting plate 202 is driven to rise and fall by the hydraulic cylinder 201, which causes the translation mechanism 3, the horizontal rotation mechanism 4, and the mounting base 5 to rise and fall, thereby adjusting the height of the clamping clamp 6.
[0030] The mounting base 5 has a guide groove 506 extending in the left and right direction inside, and a guide block 507 is fixed on the outer wall of the translational meshing tooth block 503. The guide block 507 slides in conjunction with the guide groove 506.
[0031] Working Principle: In use, the outer sill plate is placed between the two clamping clamps 6. Depending on the shape of the outer sill plate, the lifting plate 202 can be raised or lowered via the hydraulic cylinder 201, causing the translation mechanism 3, the horizontal rotation mechanism 4, and the mounting base 5 to rise or fall, thereby adjusting the height of the clamping clamps 6. This allows the clamping clamps 6 to grip the outer sill plate at different heights at both ends. Through the cooperation of the transverse guide rail 301 and the first slider 302, the longitudinal guide rail 303 can move left and right. Through the cooperation of the longitudinal guide rail 303 and the second slider 304, the U-shaped frame 401 can move back and forth, thus allowing the clamping clamps 6 to translate horizontally. The first handwheel 403 rotates the worm gear 402, which drives the worm wheel 404 to rotate. The worm wheel 404 drives the rotating shaft 405 to rotate, which in turn drives the mounting base 5 to rotate. This allows the clamping clamp 6 to swing in the horizontal plane. When the translational engagement block 503 and the rotary engagement block 505 are disengaged, the rotary engagement block 505 can rotate freely, meaning the clamping clamp 6 can rotate freely. By rotating the lead screw 501 through the second handwheel 502, since the lead screw 501 is threadedly connected to the mounting base 5, the lead screw 501 will drive the translational engagement block 503 to move. When the translational engagement block 503 engages with the rotary engagement block 505, since the translational engagement block 503 cannot rotate, the rotary engagement block 505 and the mounting shaft 504 cannot rotate, thus preventing the clamping clamp 6 from rotating freely. According to the above adjustment process, the position of the clamping clamp 6 relative to the sill plate can be adjusted to a great extent, adapting to more shaped sill plates and having a wider range of applications.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A clamping device for processing the outer panel of the left door sill beam of an automobile, comprising a base (1), characterized in that: The base (1) is provided with lifting mechanisms (2) at both ends of the top. The lifting mechanism (2) is provided with a translation mechanism (3) at the top. The translation mechanism (3) is provided with a horizontal rotation mechanism (4). The horizontal rotation mechanism (4) is provided with a mounting seat (5) at the top. The horizontal rotation mechanism (4) is used to drive the mounting seat (5) to rotate. The mounting seat (5) is internally threaded with a lead screw (501). One end of the lead screw (501) extends out of the mounting seat (5) and is fixed with a second handwheel (50). 2) One end of the lead screw (501) located inside the mounting base (5) is rotatably connected to a translational meshing tooth block (503). The translational meshing tooth block (503) is slidably connected inside the mounting base (5) in the left and right direction. The two mounting bases (5) are rotatably connected to a mounting shaft (504) at their close ends. One end of the mounting shaft (504) located inside the mounting base (5) is fixed with a rotating meshing tooth block (505). The other end of the mounting shaft (504) is fixedly mounted with a clamping clamp (6).
2. The clamping device for processing the outer panel of the left sill beam of an automobile according to claim 1, characterized in that: The horizontal rotation mechanism (4) includes a U-shaped frame (401), which is mounted on the translation mechanism (3). A worm gear (402) is rotatably connected between the two side walls of the U-shaped frame (401). A first handwheel (403) is fixed at one end of the worm gear (402). The worm gear (402) meshes with a worm wheel (404). A rotating shaft (405) is fixed inside the worm wheel (404). The bottom end of the rotating shaft (405) is rotatably connected to the U-shaped frame (401), and the top end of the rotating shaft (405) is fixedly connected to the mounting base (5).
3. The clamping device for processing the outer panel of the left sill beam of an automobile according to claim 2, characterized in that: The translation mechanism (3) includes a transverse guide rail (301), which is installed at the top of the lifting mechanism (2). A first slider (302) is slidably connected inside the transverse guide rail (301). A longitudinal guide rail (303) is fixed at the top of the first slider (302). The transverse guide rail (301) and the longitudinal guide rail (303) are perpendicular to each other. A second slider (304) is slidably connected inside the longitudinal guide rail (303). The U-shaped frame (401) is fixed at the top of the second slider (304).
4. The clamping device for processing the outer panel of the left sill beam of an automobile according to claim 3, characterized in that: The lifting mechanism (2) includes a hydraulic cylinder (201), which is fixed on the top of the base (1). A lifting plate (202) is fixed on the top of the output end of the hydraulic cylinder (201), and the transverse guide rail (301) is fixed on the top of the lifting plate (202).
5. A clamping device for processing the outer panel of the left sill beam of an automobile according to claim 1, characterized in that: The base (1) is equipped with rollers (101) at its bottom.
6. The clamping device for processing the outer panel of the left sill beam of an automobile according to claim 1, characterized in that: The mounting base (5) has a guide groove (506) extending in the left and right direction inside. A guide block (507) is fixed on the outer wall of the translational meshing tooth block (503). The guide block (507) slides with the guide groove (506).
Citation Information
Patent Citations
Clamping device for automobile left doorsill boundary beam outer plate machining
CN212497389U