Pneumatic clamp
By designing pneumatic clamps, efficient clamping is achieved using the L-shaped support frame and cylinder control system, the problem of non-standard customization of welding clamps is solved, and the stability of welding process and installation and disassembly efficiency are improved.
Patent Information
- Application Number
- CN202421065623.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-15
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-15
Smart Images
Figure CN222243375U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile manufacturing, in particular to a pneumatic clamp. Background Art
[0002] In the body welding production process of automobile manufacturers, the welding fixtures on the welding production line are mostly pneumatic fixtures, which ensure the accurate positioning and effective clamping of the workpiece by the fixture. This ensures that the body assembly, sub-assembly or assembly has the correct geometric position and geometric shape. This helps to ensure the accuracy and stability of the welding process.
[0003] Due to the different positions and sizes of car body parts, the fixtures used need to be customized. Therefore, a pneumatic fixture is proposed to meet the needs of actual use. Utility Model Content
[0004] The purpose of the utility model is to provide a pneumatic clamp to solve the problems raised in the above background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A pneumatic clamp comprises a support frame, which is L-shaped and has its lower end fixed on a welding platform by bolts; a clamping base is installed on the inner side of the upper part of the support frame, and a clamping column 1 is installed on the upper end of the clamping base; a cylinder is installed on the outer side of the upper part of the support frame, and a clamping arm is provided on the upper end of the cylinder, and the lower end of the clamping arm is rotatably connected to the cylinder through a rotating shaft, a fixed seat is installed on the inner side of the upper part of the clamping arm, and a clamping column 2 is installed on the lower end of the fixed seat; when the cylinder is working, it will drive the clamping arm to rotate around the rotating shaft, thereby driving the clamping column 2 to approach the clamping column 1 to complete the clamping action.
[0007] As a further improvement of the above solution, the clamping column 1 and the clamping column 2 are both L-shaped and are respectively mounted on the clamping base and the fixed base by bolts.
[0008] As a further improvement of the above solution, air pipe joints are provided at the upper and lower parts of the cylinder.
[0009] As a further improvement of the above scheme, a socket is further provided at the upper end of the support frame, and the socket is H-shaped. A clamping protrusion is provided on the upper part of the clamping arm, and the lower end of the clamping protrusion is an inverted isosceles trapezoidal shape. When the clamping arm is clamped, the clamping protrusion is inserted into the slot, thereby ensuring the position consistency of clamping column one and clamping column two.
[0010] As a further improvement of the above scheme, a shell is provided on the upper part of the cylinder, and the two ends of the rotating shaft are rotatably connected to the two side walls of the shell and extend outward. The lower end of the clamping arm is U-shaped, and its two ends are fixedly mounted on the extended end of the rotating shaft; a gear is fixedly provided in the middle part of the rotating shaft, and the telescopic end of the cylinder is fixedly connected with a rack, and the rack and the gear are meshed; when the cylinder is working, it drives the rack to move up and down, driving the gear and the rotating shaft to rotate, so that the clamping arm swings to realize the clamping action.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] The utility model provides a pneumatic clamp, which arranges a detachable clamping column one and a swingable clamping column two on an L-shaped support frame, and controls the clamping arm through a cylinder to drive the clamping column two to swing, so that the clamping action is completed, and the clamping efficiency is high; at the same time, the L-shaped support frame is convenient for the installation and fixation of the clamp as a whole, and the disassembly efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 A schematic diagram of the structure of a pneumatic clamp.
[0014] Figure 2 A front view of a pneumatic clamp.
[0015] Figure 3 An internal view of the upper housing of a cylinder in a pneumatic clamp.
[0016] In the figure: 1. Support frame; 2. Clamping base; 3. Clamping column one; 4. Clamping column two; 5. Fixed seat; 6. Clamping arm; 7. Rotating shaft; 8. Air pipe joint; 9. Cylinder; 10. Clamping seat; 11. Clamping cam; 12. Gear; 13. Rack. DETAILED DESCRIPTION
[0017] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.
[0018] Example, see Figure 1-Figure 3 A pneumatic clamp comprises a support frame 1, which is L-shaped and fixed at its lower end on a welding platform by bolts; a clamping base 2 is installed on the inner side of the upper part of the support frame 1, and a clamping column 3 is installed on the upper end of the clamping base 2; a cylinder 9 is installed on the outer side of the upper part of the support frame 1, and air pipe joints 8 are provided at the upper and lower parts of the cylinder 9, a clamping arm 6 is provided at the upper end of the cylinder 9, and the lower end of the clamping arm 6 is rotatably connected to the cylinder 9 through a rotating shaft 7, a fixing seat 5 is installed on the inner side of the upper part of the clamping arm 6, and a clamping column 4 is installed at the lower end of the fixing seat 5;
[0019] When the cylinder 9 is working, it will drive the clamping arm 6 to rotate around the rotating shaft 7, thereby driving the clamping column 2 4 to approach the clamping column 1 3 to complete the clamping action.
[0020] The clamping column 1 3 and the clamping column 2 4 are both L-shaped and are respectively mounted on the clamping base 2 and the fixed base by bolts.
[0021] A clamping seat 10 is also provided at the upper end of the support frame 1, and the clamping seat 10 is H-shaped. A clamping protrusion 11 is provided at the upper part of the clamping arm 6, and the lower end of the clamping protrusion 11 is an inverted isosceles trapezoidal shape. When the clamping arm 6 is clamped, the clamping protrusion 11 is inserted into the clamping groove, thereby ensuring the position consistency of the clamping column 1 3 and the clamping column 2 4.
[0022] A shell is provided on the upper part of the cylinder 9, and the two ends of the rotating shaft 7 are rotatably connected to the two side walls of the shell and extend outward. The lower end of the clamping arm 6 is U-shaped, and its two ends are fixedly mounted on the extended ends of the rotating shaft 7; a gear 12 is fixedly provided in the middle part of the rotating shaft 7, and a rack 13 is fixedly connected to the telescopic end of the cylinder 9, and the rack 13 and the gear 12 are meshed; when the cylinder 9 is working, it drives the rack 13 to move up and down, driving the gear 12 and the rotating shaft 7 to rotate, so that the clamping arm 6 swings to realize the clamping action.
[0023] Working principle of the utility model: the utility model provides a pneumatic clamp. When in use, the L-shaped support frame 1 is fixedly installed on the welding platform by bolts, two air pipe joints 8 are connected to the air pipe, and the clamping arm 6 is controlled to swing through the working line of the cylinder 9, thereby driving the clamping column 2 4 to approach the clamping column 1 3 to complete the clamping action with high clamping efficiency; at the same time, the L-shaped support frame 1 facilitates the installation and fixation of the clamp as a whole, and improves the disassembly efficiency.
Claims
1. A pneumatic clamp, comprising a support frame (1), characterized in that: The support frame (1) is L-shaped, and its lower end is fixedly mounted on the welding platform by bolts; a clamping base (2) is mounted on the inner side of the upper part of the support frame (1), and a clamping column (3) is mounted on the upper end of the clamping base (2); a cylinder (9) is mounted on the outer side of the upper part of the support frame (1), and a clamping arm (6) is provided at the upper end of the cylinder (9), and the lower end of the clamping arm (6) is rotatably connected to the cylinder (9) through a rotating shaft (7); a fixing seat (5) is mounted on the inner side of the upper part of the clamping arm (6), and a clamping column (4) is mounted on the lower end of the fixing seat (5); when the cylinder (9) is working, the clamping arm (6) is driven to rotate around the rotating shaft (7), thereby driving the clamping column (4) to approach the clamping column (3) to complete the clamping action.
2. A pneumatic clamp according to claim 1, characterized in that: The clamping column 1 (3) and the clamping column 2 (4) are both L-shaped and are respectively mounted on the clamping base (2) and the fixed base by bolts.
3. A pneumatic clamp according to claim 2, characterized in that: The upper and lower parts of the cylinder (9) are both provided with air pipe joints (8).
4. A pneumatic clamp according to claim 3, characterized in that: The upper end of the support frame (1) is also provided with a clamping seat (10), the clamping seat (10) is H-shaped, the upper part of the clamping arm (6) is provided with a clamping protrusion (11), the lower end of the clamping protrusion (11) is in the shape of an inverted isosceles trapezoid, when the clamping arm (6) is clamped, the clamping protrusion (11) is clamped into the clamping groove, thereby ensuring the position consistency of the clamping column (3) and the clamping column (4).
5. A pneumatic clamp according to claim 4, characterized in that: The upper part of the cylinder (9) is provided with a shell, the two ends of the rotating shaft (7) are rotatably connected to the two side walls of the shell and extend outward, the lower end of the clamping arm (6) is U-shaped, and its two ends are fixedly mounted on the extended ends of the rotating shaft (7); a gear (12) is fixedly provided in the middle part of the rotating shaft (7), and the telescopic end of the cylinder (9) is fixedly connected with a rack (13), and the rack (13) and the gear (12) are meshed.