A longitudinal beam side polishing mechanism and polishing device

CN224488592UActive Publication Date: 2026-07-14SHIYAN HANTANG ELECTROMECHANICAL ENG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHIYAN HANTANG ELECTROMECHANICAL ENG
Filing Date
2025-08-12
Publication Date
2026-07-14

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Abstract

The utility model discloses a kind of longitudinal beam side surface polishing mechanism and polishing device, it is related to automobile manufacturing field, longitudinal beam side surface polishing mechanism includes first horizontal sliding plate, further include horizontal moving motor, second horizontal sliding plate, fixed column, swing bar, swing cylinder and mounting seat;Horizontal moving motor is used to drive the translation of first horizontal sliding plate;Second horizontal sliding plate is slidably arranged on first horizontal sliding plate, and second horizontal sliding plate is provided with polishing motor, and the driving shaft of polishing motor is connected with polishing wheel, and the polishing wheel is used to polish the inner side wall of longitudinal beam workpiece;Fixed column is arranged on first horizontal sliding plate, and the upper end of fixed column is hinged with the proximal end of swing bar, and the position of fixed column side close to lower end is provided with hinged seat;Two ends of swing cylinder are respectively hinged with hinged seat and swing bar;The distal end of swing bar is hinged with mounting seat, and mounting seat is provided with driving wheel and drive motor, and drive motor drives driving wheel to rotate, and then guide longitudinal beam workpiece to move.
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Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing, specifically to a longitudinal beam side grinding mechanism and grinding device. Background Technology

[0002] In existing automotive longitudinal beam grinding processes, the bottom surface of the longitudinal beam is mostly ground manually. This method is not only time-consuming and labor-intensive, but also inefficient.

[0003] To address the aforementioned issues, Chinese patent document "A Rear Longitudinal Beam Grinding Assembly" (patent application number: 202420199804.8) discloses a rear longitudinal beam grinding assembly, which achieves automatic grinding of longitudinal beam workpieces. However, this solution has the following drawbacks:

[0004] 1. In this solution, the longitudinal beams can only be ground one by one, which is not only inefficient, but also unsuitable for production lines.

[0005] 2. This solution requires manual operation and adjustment of the longitudinal beam and grinding components multiple times, and cannot achieve fully automated grinding. Utility Model Content

[0006] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a grinding mechanism and grinding device for the side of the longitudinal beam, which realizes fully automatic grinding of the bottom surface of the longitudinal beam and is suitable for production lines.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a longitudinal beam side grinding mechanism, including a first transverse sliding plate, a transverse motor, a second transverse sliding plate, a fixed column, a swing rod, a swing cylinder, and a mounting base; the transverse motor is used to drive the first transverse sliding plate to move horizontally; the second transverse sliding plate is slidably mounted on the first transverse sliding plate, and a grinding motor is mounted on the second transverse sliding plate, the drive shaft of the grinding motor is connected to a grinding wheel, which is used to grind the inner side wall of the longitudinal beam workpiece; the fixed column is mounted on the first transverse sliding plate, and the upper end of the fixed column is hinged to the near end of the swing rod, and a hinge seat is provided on the side of the fixed column near the lower end; both ends of the swing cylinder are hinged to the hinge seat and the swing rod, respectively; the far end of the swing rod is hinged to the mounting base, and a drive wheel and a drive motor are provided on the mounting base, the drive motor drives the drive wheel to rotate, thereby guiding the longitudinal beam workpiece to move.

[0008] A further improvement is that the drive shaft of the transverse motor is connected to a gear, and the bottom of the first transverse slide plate is provided with a rack that meshes with the gear.

[0009] A further improvement is that: the bottom of the second transverse sliding plate is provided with a second linear guide rail adapted to the first transverse sliding plate; a transverse cylinder is provided on the first transverse sliding plate, and the piston rod of the transverse cylinder is connected to the second transverse sliding plate.

[0010] A further improvement is that a transition ramp is provided on the swing arm.

[0011] This utility model also provides a grinding device, including a frame on which at least one longitudinal beam side grinding mechanism as described above is provided.

[0012] A further improvement is that the transverse motor is mounted on the frame, and the frame is provided with a first linear guide rail adapted to the first transverse slide plate.

[0013] Further improvements include a floating friction roller mechanism for pressing the longitudinal beam workpiece and driving it to translate.

[0014] A further improvement is that the floating friction roller mechanism includes a gantry frame spanning the machine frame, and a number of lifting cylinders are provided on the crossbeam of the gantry frame. The piston rod of each lifting cylinder is connected downward to a friction motor, and the drive shaft of the friction motor is connected to a friction wheel. The friction wheel is used to press against the top surface of the corresponding longitudinal beam workpiece, thereby driving the longitudinal beam workpiece to move horizontally.

[0015] A further improvement is that four lifting cylinders are provided, evenly distributed on the crossbeam of the gantry frame.

[0016] A further improvement is that adjustable feet are provided at the bottom of both the gantry frame and the machine frame.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1. In this utility model, after the longitudinal beam workpiece enters, it is pressed by a floating friction pressure roller. The friction motor drives the friction roller to rotate, and the workpiece moves forward by friction. In conjunction with multiple longitudinal beam side grinding mechanisms, multiple longitudinal beam workpieces can be ground at the same time, which not only improves work efficiency, but is also suitable for production lines.

[0019] 2. In this utility model, the transverse cylinder drives a single grinding wheel to move left and right, which can perform floating grinding compensation for workpieces of different sizes.

[0020] 3. In this utility model, the swing cylinder drives the entire swing arm to move up and down, ensuring that the drive wheel can closely contact the workpiece, thereby improving the conveying effect.

[0021] 4. In this utility model, the transverse motor drives the gear rack to move the entire grinding component laterally, which can satisfy the requirement of covering and grinding the left and right sides of the workpiece.

[0022] 5. In this utility model, the lifting cylinder drives the friction motor to move up and down, and the position of the cylinder detection switch is adjusted to make the lifting cylinder reach different strokes to adapt to product workpieces of different thicknesses. Attached Figure Description

[0023] Figure 1 This is a perspective view of the longitudinal beam side grinding mechanism in an embodiment of this utility model;

[0024] Figure 2 This is a front view of the longitudinal beam side grinding mechanism in this embodiment of the utility model;

[0025] Figure 3 This is a side view of the longitudinal beam side grinding mechanism in an embodiment of this utility model;

[0026] Figure 4 This is a top view of the longitudinal beam side grinding mechanism in an embodiment of this utility model;

[0027] Figure 5 This is a front view of the grinding device in an embodiment of this utility model;

[0028] Figure 6 This is a side view of the grinding device in an embodiment of the present invention;

[0029] Figure 7 This is a top view of the grinding device in an embodiment of the present invention;

[0030] Figure 8 This is a front view of the floating friction pressure roller mechanism in an embodiment of this utility model.

[0031] Figure label:

[0032] 1-Side grinding mechanism for longitudinal beam; 101-First transverse sliding plate; 102-Transverse motor; 103-Gear; 104-Rack; 105-Second linear guide; 106-Transverse cylinder; 107-Second transverse sliding plate; 108-Grinding motor; 109-Grinding wheel; 110-Fixed column; 111-Swing rod; 112-Mounting base; 113-Drive wheel; 114-Drive motor; 115-Swing cylinder; 116-Hinge base; 117-Transition ramp;

[0033] 2-Frame; 21-First linear guide rail;

[0034] 3-Floating friction pressure roller mechanism; 31-Gantry frame; 32-Lifting cylinder; 33-Friction motor; 34-Friction wheel. Detailed Implementation

[0035] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0036] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and 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. They should not be construed as limiting the specific protection scope of this utility model.

[0037] Furthermore, 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 technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0038] The following description, in conjunction with the accompanying drawings, further illustrates specific embodiments of the present invention, making the technical solution and beneficial effects of the present invention clearer and more explicit. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0039] See Figures 1-4 As shown, this utility model embodiment provides a longitudinal beam side grinding mechanism, including a first transverse sliding plate 101, a transverse motor 102, a second transverse sliding plate 107, a fixed column 110, a swing rod 111, a swing cylinder 115, and a mounting base 112;

[0040] The transverse motor 102 is used to drive the first transverse slide plate 101 to move horizontally; specifically, the drive shaft of the transverse motor 102 is connected to a gear 103, and the bottom of the first transverse slide plate 101 is provided with a rack 104 that meshes with the gear 103.

[0041] The second transverse sliding plate 107 is slidably mounted on the first transverse sliding plate 101, and a grinding motor 108 is mounted on the second transverse sliding plate 107. The drive shaft of the grinding motor 108 is connected to a grinding wheel 109, which is used to grind the inner sidewall of the longitudinal beam workpiece. Specifically, the bottom of the second transverse sliding plate 107 is provided with a second linear guide rail 105 that is adapted to the first transverse sliding plate 101. A transverse cylinder 106 is mounted on the first transverse sliding plate 101, and the piston rod of the transverse cylinder 106 is connected to the second transverse sliding plate 107.

[0042] The fixed post 110 is mounted on the first transverse sliding plate 101, and the upper end of the fixed post 110 is hinged to the near end of the swing rod 111. A hinge seat 116 is provided on the side of the fixed post 110 near the lower end.

[0043] The two ends of the swing cylinder 115 are respectively hinged to the hinge seat 116 and the swing rod 111;

[0044] The distal end of the swing arm 111 is hinged to the mounting base 112, and the mounting base 112 is provided with a drive wheel 113 and a drive motor 114. The drive motor 114 drives the drive wheel 113 to rotate, thereby guiding the longitudinal beam workpiece to move. Specifically, the swing arm 111 is provided with a transition inclined plate 117.

[0045] See Figures 1-7 As shown, this embodiment of the invention also provides a grinding device, including a frame 2, characterized in that: at least one longitudinal beam side grinding mechanism 1 as described above is provided on the frame 2. Specifically, a transverse motor 102 is mounted on the frame 2, and a first linear guide rail 21 adapted to the first transverse sliding plate 101 is provided on the frame 2. The grinding device includes a floating friction pressure roller mechanism 3, used to press the longitudinal beam workpiece and drive the longitudinal beam workpiece to translate.

[0046] See Figure 8 As shown, the floating friction pressure roller mechanism 3 includes a portal frame 31 spanning the frame 2. Several lifting cylinders 32 are mounted on the crossbeam of the portal frame 31. The piston rod of each lifting cylinder 32 is connected downwards to a friction motor 33. The drive shaft of the friction motor 33 is connected to a friction wheel 34, which presses against the top surface of the corresponding longitudinal beam workpiece, thereby driving the longitudinal beam workpiece to move horizontally. Specifically, four lifting cylinders 32 are evenly distributed on the crossbeam of the portal frame 31. Adjustable feet are provided at the bottom of both the portal frame 31 and the frame 2.

[0047] In the description of this specification, references to terms such as "an embodiment," "preferred," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. Illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0048] Based on the above description of the structure and principle, those skilled in the art should understand that this utility model is not limited to the specific embodiments described above. Improvements and substitutions based on this utility model using techniques known in the art all fall within the protection scope of this utility model and should be defined by the claims.

Claims

1. A grinding mechanism for the side of a longitudinal beam, comprising a first transverse sliding plate (101), characterized in that: It also includes a transverse motor (102), a second transverse slide plate (107), a fixed column (110), a swing arm (111), a swing cylinder (115), and a mounting base (112); The transverse motor (102) is used to drive the first transverse slide plate (101) to translate; The second transverse sliding plate (107) is slidably disposed on the first transverse sliding plate (101), and a grinding motor (108) is disposed on the second transverse sliding plate (107). The drive shaft of the grinding motor (108) is connected to a grinding wheel (109), which is used to grind the inner wall of the longitudinal beam workpiece. The fixed post (110) is mounted on the first transverse sliding plate (101), and the upper end of the fixed post (110) is hinged to the near end of the swing rod (111). A hinge seat (116) is provided on the side of the fixed post (110) near the lower end. The two ends of the swing cylinder (115) are respectively hinged to the hinge seat (116) and the swing rod (111); The far end of the swing arm (111) is hinged to the mounting base (112), and the mounting base (112) is provided with a drive wheel (113) and a drive motor (114). The drive motor (114) drives the drive wheel (113) to rotate, thereby guiding the longitudinal beam workpiece to move.

2. The longitudinal beam side grinding mechanism according to claim 1, characterized in that: The drive shaft of the transverse motor (102) is connected to a gear (103), and the bottom of the first transverse slide plate (101) is provided with a rack (104) that meshes with the gear (103).

3. The longitudinal beam side grinding mechanism according to claim 1, characterized in that: The bottom of the second transverse sliding plate (107) is provided with a second linear guide rail (105) that is compatible with the first transverse sliding plate (101); the first transverse sliding plate (101) is provided with a transverse cylinder (106), and the piston rod of the transverse cylinder (106) is connected to the second transverse sliding plate (107).

4. The longitudinal beam side grinding mechanism according to claim 1, characterized in that: A transition ramp (117) is provided on the swing arm (111).

5. A grinding apparatus, comprising a frame (2), characterized in that: The frame (2) is provided with at least one longitudinal beam side grinding mechanism (1) as described in any one of claims 1 to 4.

6. The polishing apparatus according to claim 5, characterized in that: The transverse motor (102) is mounted on the frame (2), and the frame (2) is provided with a first linear guide rail (21) adapted to the first transverse slide plate (101).

7. The polishing device according to claim 5, characterized in that: It also includes a floating friction roller mechanism (3) for pressing the longitudinal beam workpiece and driving the longitudinal beam workpiece to translate.

8. The polishing apparatus according to claim 7, characterized in that: The floating friction roller mechanism (3) includes a portal frame (31) spanning the frame (2). Several lifting cylinders (32) are provided on the crossbeam of the portal frame (31). The piston rod of each lifting cylinder (32) is connected downward to a friction motor (33). The drive shaft of the friction motor (33) is connected to a friction wheel (34). The friction wheel (34) is used to press against the top surface of the corresponding longitudinal beam workpiece, thereby driving the longitudinal beam workpiece to move horizontally.

9. The polishing apparatus according to claim 8, characterized in that: Four lifting cylinders (32) are provided, evenly distributed on the crossbeam of the gantry frame (31).

10. The polishing apparatus according to claim 8, characterized in that: The bottom of both the gantry frame (31) and the frame (2) is equipped with adjustable feet.