Fixing mechanical clamp for machining
By designing a mechanical fixture with a support frame and clamping mechanism, and using a motor-driven transmission system and a cylinder to fix the material, the problem of difficult adjustment of the existing fixture is solved, the processing efficiency is improved and the cost is reduced.
Patent Information
- Application Number
- CN202422767700.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-13
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-11-13
AI Technical Summary
Existing mechanical fixtures are difficult to adjust when machining complex parts, resulting in low machining efficiency and increased production costs and cycles.
A fixed mechanical fixture including a support frame, an adjustment mechanism and a clamping mechanism was designed. A variable speed motor was used to drive the transmission rod and the rotating rod to drive the square hole plate to flip. The cylinder was combined to drive the downward pressure head to fix the material, thereby achieving rapid adjustment and flipping.
The fixture position can be quickly adjusted, which reduces production costs and processing cycles and improves processing efficiency.
Smart Images
Figure CN223338880U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical processing, in particular to a fixed mechanical clamp for mechanical processing. Background Art
[0002] Machining is the process of directly changing the shape, size, relative position, and properties of a workpiece to produce a qualified part. Fixtures can be classified into various types, such as vise-type, support-type, and multi-station fixtures, based on their structural characteristics and intended use. The machining process directly determines the quality of parts and mechanical products, significantly impacting both cost and productivity. It is a crucial component of the entire process, and fixtures are required to secure the material being processed.
[0003] However, in the existing technology, many mechanical fixtures are basically fixed in position after being installed on the machine tool workbench. Once the installation is completed, it is difficult to change their position on the workbench. In the processing of complex parts, multiple processing steps need to be performed at different positions of the same workpiece. When processing a box part with multiple holes and planes, it is necessary to first process the planes and holes on one side, and then flip the workpiece to process the other side. If the fixture is difficult to adjust, it will take a lot of time to readjust the fixture position, which will affect the processing efficiency and increase production costs and processing cycle. Utility Model Content
[0004] The purpose of this utility model is to solve the problem in the prior art that if the clamp is difficult to adjust, it takes a lot of time to readjust the clamp position, which will affect the processing efficiency and increase the production cost and processing cycle, and to propose a fixed mechanical clamp for mechanical processing.
[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a fixed mechanical fixture for machining, comprising a support frame, an adjustment mechanism is provided at the upper end of the support frame, and a clamping mechanism is provided in the middle of the adjustment mechanism;
[0006] The adjustment mechanism includes a special-shaped plate and two groups of connecting seats, a speed-changing motor is fixedly installed on the upper end of the special-shaped plate, and two groups of bearing seats are fixedly installed on the upper end of the support frame, a transmission rod is rotatably installed inside the interior of one group of the bearing seats, connecting columns are fixedly installed inside the two groups of connecting seats, and a rotating rod is rotatably installed inside the other group of bearing seats, one end of the transmission rod is fixed to the output end of the speed-changing motor, the other end of the transmission rod is fixed to one end of one group of connecting columns, and one end of the rotating rod is fixed to one end of the other group of connecting columns.
[0007] Preferably, the clamping mechanism includes a square hole plate and four groups of lower pressure heads, four groups of fixing frames are fixedly installed on the upper end of the square hole plate, cylinders are rotatably installed inside the four groups of fixing frames, movable parts are rotatably installed in the middle of the protruding parts of the four groups of fixing frames, multiple groups of baffles are fixedly installed on the inner wall of the square hole plate, and one end of the four groups of movable parts is welded with a special-shaped connection block.
[0008] Preferably, one end of the special-shaped plate is fixed to one end of the support frame, and the lower ends of the two groups of connecting seats are fixed to the upper end of the square hole plate.
[0009] Preferably, movable blocks are rotatably mounted on both sides of the four groups of movable parts, and the protruding parts of the four groups of pressing heads are fixedly mounted inside the four groups of special-shaped connecting blocks respectively.
[0010] Preferably, the protruding ends of the four groups of cylinders are respectively fixed to the other ends of the four groups of movable parts, the square hole plate is arranged in the middle of the support frame, and the four groups of downward pressure heads are located above the square hole plate.
[0011] Preferably, one end of the eight groups of movable blocks are rotatably mounted on both sides of the middle protrusions of the four groups of fixing frames.
[0012] Preferably, a height adjustment mechanism is installed through the lower end of the support frame.
[0013] Compared with the prior art, the advantages and positive effects of the present invention are:
[0014] 1. In the utility model, an adjustment mechanism is provided to drive the square hole plate to rotate, and the square hole plate drives the entire clamping mechanism to flip, so that the material in the square hole plate can be quickly flipped, without spending a lot of time to readjust the position of the clamp, and will not affect the processing efficiency of the material, thereby reducing production costs and processing cycles.
[0015] 2. In the present invention, a clamping mechanism is provided so that four groups of movable parts drive four groups of lower pressure heads to move downward through four groups of special-shaped connecting blocks until the lower ends of the four groups of lower pressure heads contact the upper ends of the materials, and then the materials can be limited to the upper ends of multiple groups of baffles, thereby fixing the materials and facilitating subsequent processing of the materials. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 The present invention provides a schematic diagram of the three-dimensional structure of a fixed mechanical fixture for machining;
[0017] Figure 2 The utility model provides a schematic diagram of the structure of an adjustment mechanism in a fixed mechanical fixture for machining;
[0018] Figure 3The utility model provides a structural schematic diagram of a clamping mechanism in a fixed mechanical fixture for machining;
[0019] Figure 4 The utility model provides a partial structural schematic diagram of a clamping mechanism in a fixed mechanical fixture for machining.
[0020] Legend: 1. Support frame; 11. Height adjustment mechanism; 2. Adjustment mechanism; 21. Special-shaped plate; 22. Connecting seat; 23. Speed-changing motor; 24. Bearing seat; 25. Transmission rod; 26. Connecting column; 27. Rotating rod; 3. Clamping mechanism; 31. Square hole plate; 32. Fixed frame; 33. Down-pressure head; 34. Cylinder; 35. Movable part; 36. Baffle; 37. Special-shaped connecting block; 38. Movable block. DETAILED DESCRIPTION
[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.
[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0023] Example 1: Figure 1 - Figure 4 As shown, the utility model provides a fixed mechanical fixture for machining, comprising a support frame 1, an adjustment mechanism 2 is provided at the upper end of the support frame 1, a clamping mechanism 3 is provided in the middle of the adjustment mechanism 2, and the clamping mechanism 3 includes a square hole plate 31 and four sets of lower pressure heads 33;
[0024] The adjustment mechanism 2 includes a special-shaped plate 21 and two groups of connecting seats 22. A speed-changing motor 23 is fixedly installed on the upper end of the special-shaped plate 21. Two groups of bearing seats 24 are fixedly installed on the upper end of the support frame 1. A transmission rod 25 is rotatably installed inside one group of bearing seats 24. Connecting columns 26 are fixedly installed inside the two groups of connecting seats 22. A rotating rod 27 is rotatably installed inside the other group of bearing seats 24. One end of the transmission rod 25 is fixed to the output end of the speed-changing motor 23, and the other end of the transmission rod 25 is fixed to one end of one group of connecting columns 26. One end of the rotating rod 27 is fixed to one end of the other group of connecting columns 26. One end of the special-shaped plate 21 is fixed to one end of the support frame 1. The lower ends of the two groups of connecting seats 22 are fixed to the upper end of the square hole plate 31. The lower end of the support frame 1 is penetrated by a height adjustment mechanism 11.
[0025] The following is a detailed description of the specific settings and functions of this embodiment. By starting the variable speed motor 23, the output end of the variable speed motor 23 drives the transmission rod 25 to rotate inside one group of bearing seats 24, and the transmission rod 25 drives one group of connecting seats 22 to rotate through one group of rotating rods 27. One group of connecting seats 22 drives another group of connecting seats 22 to rotate through the square hole plate 31, and the other group of connecting seats 22 drives another group of rotating rods 27 to rotate inside the other group of bearing seats 24, thereby driving the square hole plate 31 to rotate, and driving the entire clamping mechanism 3 to flip through the square hole plate 31, so that the material in the square hole plate 31 can be quickly flipped, without spending a lot of time to readjust the clamp position, and will not affect the processing efficiency of the material, thereby reducing production costs and processing cycles;
[0026] The arrangement of the two sets of bearing seats 24 facilitates the rotation of the transmission rod 25 and the rotating rod 27 inside the two sets of bearing seats 24, thereby increasing the stability of the transmission rod 25 and the rotating rod 27. The arrangement of the special-shaped plate 21 can support the variable speed motor 23.
[0027] By fixing four sets of height adjustment mechanisms 11 at the lower end of the support frame 1, with the cooperation of four sets of bolts and four sets of nuts, the height of the support frame 1 can be easily adjusted, which can be suitable for processing equipment of different heights, thereby improving the practicality of the fixed mechanical fixture.
[0028] Example 2: Figure 1 、 Figure 2 and Figure 4 As shown, the clamping mechanism 3 includes a square hole plate 31 and four groups of pressing heads 33. Four groups of fixing frames 32 are fixedly installed on the upper end of the square hole plate 31. Cylinders 34 are rotatably installed inside the four groups of fixing frames 32. Moving parts 35 are rotatably installed in the middle of the protruding parts of the four groups of fixing frames 32. Multiple groups of baffles 36 are fixedly installed on the inner wall of the square hole plate 31. One end of the four groups of movable parts 35 is welded with special-shaped connecting blocks 37. Both sides of the four groups of movable parts 35 are rotatably installed with movable blocks 38. The protruding parts of the four groups of pressing heads 33 are respectively fixedly installed in the inside of the four groups of special-shaped connecting blocks 37. The protruding ends of the four groups of cylinders 34 are respectively fixed to the other ends of the four groups of movable parts 35. The square hole plate 31 is arranged in the middle of the support frame 1, and the four groups of pressing heads 33 are located above the square hole plate 31. One ends of the eight groups of movable blocks 38 are rotatably installed on both sides of the protruding parts in the middle of the four groups of fixing frames 32.
[0029] The effect achieved by the entire embodiment is that by synchronously starting the four groups of cylinders 34, the protruding ends of the four groups of cylinders 34 push the four groups of movable parts 35 to rotate inside the four groups of fixed frames 32, and at the same time, the four groups of movable parts 35 drive the eight groups of movable blocks 38 to rotate on the outer wall of the four groups of fixed frames 32, which can increase the stability of the four groups of movable parts 35 when they are moving, and the four groups of movable parts 35 drive the four groups of lower pressure heads 33 to move downward through the four groups of special-shaped connecting blocks 37 until the lower ends of the four groups of lower pressure heads 33 contact the upper ends of the materials, and then the materials can be limited to the upper ends of the multiple groups of baffles 36, so that the materials can be fixed, which is convenient for subsequent processing of the materials.
[0030] The method of use and working principle of this device are as follows: first, by placing the material on the upper end of the multiple groups of baffles 36, and then by synchronously starting the four groups of cylinders 34, the extended ends of the four groups of cylinders 34 push the four groups of movable parts 35 to rotate inside the four groups of fixed frames 32, and at the same time, the four groups of movable parts 35 drive the eight groups of movable blocks 38 to rotate on the outer wall of the four groups of fixed frames 32, which can increase the stability of the four groups of movable parts 35 when they are moving, and the four groups of movable parts 35 drive the four groups of lower pressure heads 33 to move downward through the four groups of special-shaped connecting blocks 37 until the lower ends of the four groups of lower pressure heads 33 contact the upper end of the material, which can limit the material to the upper end of the multiple groups of baffles 36, and can The material is fixed, and finally, the variable speed motor 23 is started. The output end of the variable speed motor 23 drives the transmission rod 25 to rotate inside one group of bearing seats 24. The transmission rod 25 drives one group of connecting seats 22 to rotate through one group of rotating rods 27. One group of connecting seats 22 drives another group of connecting seats 22 to rotate through the square hole plate 31. The other group of connecting seats 22 drives another group of rotating rods 27 to rotate inside the other group of bearing seats 24, which can drive the square hole plate 31 to rotate, and drive the entire clamping mechanism 3 to flip through the square hole plate 31, which can quickly flip the material in the square hole plate 31, making it convenient to process the material.
[0031] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.
Claims
1. A fixed mechanical fixture for machining, comprising a support frame (1), characterized in that: An adjustment mechanism (2) is provided at the upper end of the support frame (1), and a clamping mechanism (3) is provided in the middle of the adjustment mechanism (2); The adjustment mechanism (2) comprises a special-shaped plate (21) and two groups of connecting seats (22), a variable speed motor (23) is fixedly mounted on the upper end of the special-shaped plate (21), two groups of bearing seats (24) are fixedly mounted on the upper end of the support frame (1), a transmission rod (25) is rotatably mounted inside one group of the bearing seats (24), connecting columns (26) are fixedly mounted inside the two groups of connecting seats (22), and a rotating rod (27) is rotatably mounted inside the other group of the bearing seats (24), one end of the transmission rod (25) is fixed to the output end of the variable speed motor (23), the other end of the transmission rod (25) is fixed to one end of one group of connecting columns (26), and one end of the rotating rod (27) is fixed to one end of the other group of connecting columns (26).
2. A fixed mechanical fixture for machining according to claim 1, characterized in that: The clamping mechanism (3) comprises a square hole plate (31) and four groups of lower pressure heads (33); four groups of fixing frames (32) are fixedly mounted on the upper end of the square hole plate (31); cylinders (34) are rotatably mounted inside the four groups of fixing frames (32); movable parts (35) are rotatably mounted in the middle of the protruding parts of the four groups of fixing frames (32); multiple groups of baffles (36) are fixedly mounted on the inner wall of the square hole plate (31); and one end of the four groups of movable parts (35) is welded with a special-shaped connecting block (37).
3. A fixed mechanical fixture for machining according to claim 2, characterized in that: One end of the special-shaped plate (21) is fixed to one end of the support frame (1), and the lower ends of the two groups of connecting seats (22) are fixed to the upper end of the square hole plate (31).
4. A fixed mechanical fixture for machining according to claim 2, characterized in that: Both sides of the four groups of movable parts (35) are rotatably mounted with movable blocks (38), and the protruding parts of the four groups of lower pressing heads (33) are fixedly mounted inside the four groups of special-shaped connecting blocks (37).
5. A fixed mechanical fixture for machining according to claim 4, characterized in that: The protruding ends of the four groups of cylinders (34) are respectively fixed to the other ends of the four groups of movable parts (35), the square hole plate (31) is arranged in the middle of the support frame (1), and the four groups of lower pressure heads (33) are located above the square hole plate (31).
6. A fixed mechanical fixture for machining according to claim 5, characterized in that: One end of the eight groups of movable blocks (38) is rotatably mounted on both sides of the middle protrusions of the four groups of fixed frames (32).
7. The mechanical fixture for machining according to claim 1, characterized in that: A height adjustment mechanism (11) is installed through the lower end of the support frame (1).