Clamping and fixing device for mechanical part machining

Abstract

The utility model discloses a clamping and fixing device for machining mechanical parts, which belongs to the field of part machining and comprises a bearing sleeve. The adjusting mechanism is arranged on the inner side of the bearing sleeve and comprises a mounting sleeve which is arranged on the inner side of the bearing sleeve; the bidirectional screw rod is rotatably arranged on the inner side of the mounting sleeve; the two moving blocks are arranged on the outer side of the two-way lead screw in a sliding mode; and the two limiting assemblies are symmetrically arranged on the upper surfaces of the two moving blocks correspondingly. According to the clamping and fixing device for mechanical part machining, the distance between the two limiting assemblies can be flexibly adjusted through the arranged adjusting mechanism, part blanks of different specifications can be limited and fixed through the limiting assemblies, the practicability of the clamping and fixing device is remarkably improved, and meanwhile the clamping and fixing device is convenient to use. Under the cooperation effect of the limiting assembly and the adjusting mechanism, the limiting assembly can make contact with the outer side of the part blank for clamping and fixing, and can make contact with the upper surface of the part blank for clamping and fixing.

Description

Technical Field

[0001] This utility model belongs to the field of parts processing, and specifically relates to a clamping and fixing device for processing mechanical parts. Background Technology

[0002] Machinery manufacturing refers to the industry engaged in the production of various power machinery, chemical machinery, lifting and transportation machinery, textile machinery, machine tools, tools, instruments, meters and other mechanical equipment. The mechanical products processed by machinery manufacturing include components, sub-components and parts. In the process of processing mechanical parts, the parts need to be clamped and fixed first, and then cutting, heat treatment and surface treatment are carried out.

[0003] In the machining of mechanical parts, clamping and fixing the parts is a crucial step in ensuring machining accuracy and stability. Traditional clamping and fixing devices often suffer from simple structures and limited applicability, making it difficult to meet the fixing requirements of mechanical part blanks of different specifications and processing needs. Therefore, this application proposes a clamping and fixing device for machining mechanical parts to solve the above-mentioned technical problems. Utility Model Content

[0004] In view of one or more of the above-mentioned defects or improvement needs of the prior art, this utility model provides a clamping and fixing device for machining mechanical parts, which has the advantage of improving the practicality of the clamping and fixing device.

[0005] To achieve the above objectives, this utility model provides a clamping and fixing device for machining mechanical parts, including a bearing sleeve;

[0006] An adjustment mechanism located inside the bearing sleeve includes a mounting sleeve located inside the bearing sleeve; a bidirectional lead screw rotatably located inside the mounting sleeve; and two sliding blocks slidably located outside the bidirectional lead screw.

[0007] Two limiting components are respectively and symmetrically disposed on the upper surfaces of the two moving blocks.

[0008] Furthermore, the bearing sleeve also includes a number of clearance holes, which are evenly distributed on the upper surface of the bearing sleeve.

[0009] Four mounting holes are evenly distributed on the inner side of the bearing sleeve.

[0010] Furthermore, a number of the clearance holes are divided into two groups, and the two groups of clearance holes are symmetrically and evenly distributed on the upper surface of the bearing sleeve.

[0011] Furthermore, the adjustment mechanism also includes a guide rod disposed inside the mounting sleeve;

[0012] The motor is located on the right side of the mounting sleeve, and the right end of the bidirectional lead screw is located on the output shaft of the motor.

[0013] Furthermore, the two movable blocks are slidably disposed on the outside of the guide rod, and the outside of the bidirectional lead screw is threadedly connected to the inside of the two movable blocks.

[0014] Furthermore, the limiting component includes a U-shaped sleeve disposed on the upper surface of the moving block;

[0015] A number of limiting holes are evenly distributed on the upper surface of the U-shaped sleeve;

[0016] A number of limiting members are slidably disposed on the inner side of a number of the limiting holes.

[0017] Furthermore, the limiting member includes a fixing bolt, which is slidably disposed inside the limiting hole, and the fixing bolt is located inside the relief hole.

[0018] A rotatable and threaded nut is located on the outside of the fixing bolt, and the upper surface of the nut is in contact with the inner side of the U-shaped sleeve.

[0019] A limiting block is slidably disposed on the outside of the fixing bolt, and the lower surface of the limiting block is in contact with the upper surface of the bearing sleeve.

[0020] A number of resistance-increasing strips are evenly distributed on the lower surface of the limiting block.

[0021] Furthermore, an elongated hole is formed on the upper surface of the limiting block, and the fixing bolt is located inside the elongated hole.

[0022] In summary, the beneficial effects of the above-described technical solutions conceived by this utility model compared with the prior art include:

[0023] This utility model discloses a clamping and fixing device for machining mechanical parts. Through an adjustment mechanism, the distance between two limiting components can be flexibly adjusted, allowing the limiting components to limit and fix part blanks of different specifications. This significantly improves the practicality of the clamping and fixing device. At the same time, with the cooperation of the limiting components and the adjustment mechanism, the clamping components can contact the outer side of the part blank for clamping and fixing, and can also contact and clamp the upper surface of the part blank for clamping and fixing. This meets the different processing methods and process requirements of mechanical part blanks, thereby improving the practicality of the clamping and fixing device. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall three-dimensional structure in a preferred embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the bearing sleeve in a preferred embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the overall three-dimensional structure of the adjustment mechanism in a preferred embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the overall exploded three-dimensional structure of the limiting component in a preferred embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the overall three-dimensional structure of the limiting component in a preferred embodiment of the present invention.

[0029] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1. bearing sleeve; 11. clearance hole; 12. mounting hole; 2. adjusting mechanism; 21. mounting sleeve; 22. guide rod; 23. double-acting screw; 24. motor; 25. moving block; 3. limiting assembly; 31. U-shaped sleeve; 32. limiting hole; 33. limiting element; 331. fixing bolt; 332. nut; 333. limiting block; 334. resistance increasing strip. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figure 1-5 This utility model provides a clamping and fixing device for machining mechanical parts, including a bearing sleeve 1;

[0032] The adjustment mechanism 2 located inside the bearing sleeve 1 includes a mounting sleeve 21 located inside the bearing sleeve 1; a bidirectional lead screw 23 rotatably located inside the mounting sleeve 21; and two moving blocks 25 slidably located outside the bidirectional lead screw 23.

[0033] Two limiting components 3 are respectively and symmetrically disposed on the upper surfaces of the two moving blocks 25.

[0034] This embodiment provides a clamping and fixing device for machining mechanical parts. By placing the mechanical part blank on the upper surface of the bearing sleeve 1, and then limiting and fixing the mechanical part blank on the bearing sleeve 1 from the left and right sides of the limiting component 3, the distance between the two limiting components 3 can be adjusted under the action of the adjusting mechanism 2, so that the limiting component 3 can limit and fix mechanical part blanks of different specifications on the bearing sleeve 1, thereby improving the practicality of the clamping and fixing device.

[0035] Furthermore, such as Figure 2 As shown, in the preferred embodiment of this utility model, the bearing sleeve 1 further includes a number of clearance holes 11, which are evenly distributed on the upper surface of the bearing sleeve 1; and four mounting holes 12, which are evenly distributed on the inner side of the bearing sleeve 1.

[0036] Furthermore, a number of clearance holes 11 are divided into two groups, and the two groups of clearance holes 11 are symmetrically and evenly distributed on the upper surface of the bearing sleeve 1.

[0037] In this embodiment, several preferred embodiments of the bearing sleeve 1 are given. The bearing sleeve 1 has four mounting holes 12 on its inner side, which allow workers to pass hexagonal bolts through the mounting holes 12, thereby fixing the bearing sleeve 1 on the mechanical parts processing equipment.

[0038] Furthermore, such as Figure 3 As shown, the adjustment mechanism 2 in the preferred embodiment of this utility model further includes a guide rod 22 located inside the mounting sleeve 21; a motor 24 located on the right side of the mounting sleeve 21, and the right end of the bidirectional lead screw 23 located on the output shaft of the motor 24.

[0039] Furthermore, two movable blocks 25 are slidably disposed on the outside of the guide rod 22, and the outer side of the bidirectional lead screw 23 is threadedly connected to the inner side of the two movable blocks 25. This allows the bidirectional lead screw 23 to drive the outer movable blocks 25 to move when the motor 24 drives the bidirectional lead screw 23 to rotate.

[0040] In this embodiment, several preferred embodiments of the adjustment mechanism 2 are given. The motor 24 drives the bidirectional lead screw 23 to rotate. The rotating bidirectional lead screw 23 drives the moving block 25 to move, thereby adjusting the distance between the two moving blocks 25, thereby adjusting the distance between the two limiting components 3. This allows the two limiting components 3 to limit and fix mechanical part blanks of different specifications. At the same time, since the moving block 25 is also located outside the guide rod 22, the moving block 25 will not rotate outside the bidirectional lead screw 23.

[0041] Furthermore, such as Figure 4-5As shown, the limiting component 3 in the preferred embodiment of this utility model includes a U-shaped sleeve 31 disposed on the upper surface of the moving block 25; a plurality of limiting holes 32 evenly distributed on the upper surface of the U-shaped sleeve 31; and a plurality of limiting members 33 slidably disposed on the inner side of the plurality of limiting holes 32.

[0042] Furthermore, such as Figure 5 As shown, the limiting member 33 includes a fixing bolt 331, which is slidably disposed inside the limiting hole 32 and located inside the relief hole 11; a nut 332, which is rotatably and threadedly connected to the fixing bolt 331 and is disposed outside the fixing bolt 331, with the upper surface of the nut 332 contacting the inner side of the U-shaped sleeve 31; a limiting block 333, which is slidably disposed outside the fixing bolt 331 and with the lower surface of the limiting block 333 contacting the upper surface of the bearing sleeve 1; and a number of resistance-increasing strips 334, which are evenly distributed on the lower surface of the limiting block 333. Under the action of the resistance-increasing strips 334, the friction between the limiting block 333 and the mechanical part blank can be increased, thereby improving the limiting and fixing effect of the limiting block 333 on the mechanical part blank.

[0043] Furthermore, an elongated hole is formed on the upper surface of the limiting block 333, and the fixing bolt 331 is located inside the elongated hole. This allows the limiting block 333 to move to a certain extent outside the fixing bolt 331, so that the limiting block 333 can better limit and fix the mechanical part blank on the bearing sleeve 1.

[0044] This embodiment provides several preferred embodiments of the limiting component 3. By moving the limiting block 333 located outside the fixing bolt 331, the lower surface of the limiting block 333 contacts the upper surface of the mechanical part blank placed on the bearing sleeve 1. Then, the nut 332 is rotated. Since the upper surface of the nut 332 contacts the inner side of the U-shaped sleeve 31, the nut 332 pulls the fixing bolt 331 downward when it rotates. This causes the fixing bolt 331 to drive the limiting block 333 downward, thereby limiting and fixing the mechanical part blank on the bearing sleeve 1. This allows the processing equipment to stably process the mechanical part blank. At the same time, the upper surface of the mechanical part blank needs to be processed. When the nut 332 is rotated, the nut 332 causes the limiting block 333 on the fixing bolt 331 to contact the upper surface of the bearing sleeve 1. Then, under the action of the adjusting mechanism 2, the U-shaped sleeve 31 is moved. This causes the U-shaped sleeve 31 to move the limiting block 333 through the fixing bolt 331, so that the outer side of the limiting block 333 can contact the outer side of the mechanical part blank on the bearing sleeve 1, thereby clamping and fixing the mechanical part blank. In this way, with the cooperation of the adjusting mechanism 2, the limiting component 3 can limit and fix the mechanical part blank in a variety of different ways, thereby meeting the different processing methods of the mechanical part blank and improving the practicality of the clamping and fixing device.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clamping fixture for machining of mechanical parts, characterized in that The adjusting mechanism (2) is arranged in the inside of the bearing sleeve (1), and comprises a mounting sleeve (21) arranged in the inside of the bearing sleeve (1), a bidirectional screw rod (23) rotatably arranged in the inside of the mounting sleeve (21), and two moving blocks (25) respectively slidably arranged on the outside of the bidirectional screw rod (23). The bearing sleeve (1) further comprises a plurality of accommodation holes (11) uniformly arranged on the upper surface of the bearing sleeve (1). The four mounting holes (12) are uniformly arranged on the inside of the bearing sleeve (1).

2. The clamping fixture for machining of mechanical parts according to claim 1, characterized in that, The plurality of accommodation holes (11) are divided into two groups, and the two groups of accommodation holes (11) are symmetrically and uniformly arranged on the upper surface of the bearing sleeve (1). The adjusting mechanism (2) further comprises a guide rod (22) arranged in the inside of the mounting sleeve (21).

3. The fixture according to claim 2, wherein The motor (24) is arranged on the right side of the mounting sleeve (21), and the right end of the bidirectional screw rod (23) is arranged on the output shaft of the motor (24).

4. The fixture according to claim 3, wherein The two moving blocks (25) are slidably arranged on the outside of the guide rod (22), and the outside of the bidirectional screw rod (23) is threadedly connected with the inside of the two moving blocks (25). The limiting assembly (3) comprises a U-shaped sleeve (31) arranged on the upper surface of the moving block (25).

5. The fixture according to claim 4, wherein A plurality of limiting holes (32) are uniformly arranged on the upper surface of the U-shaped sleeve (31).

6. The chucking fixture for machining of mechanical parts according to claim 5, characterized in that, A plurality of limiting members (33) are respectively slidably arranged on the inside of the plurality of limiting holes (32). The limiting member (33) comprises a fixing bolt (331) slidably arranged on the inside of the limiting hole (32), and the fixing bolt (331) is located on the inside of the accommodation hole (11). A nut (332) is rotatably and threadedly connected on the outside of the fixing bolt (331), and the upper surface of the nut (332) is in contact with the inside of the U-shaped sleeve (31).

7. The chucking fixture for machining of mechanical parts according to claim 6, characterized in that, A limiting block (333) is slidably arranged on the outside of the fixing bolt (331), and the lower surface of the limiting block (333) is in contact with the upper surface of the bearing sleeve (1). A plurality of resistance increasing strips (334) are uniformly arranged on the lower surface of the limiting block (333). An oblong hole is arranged on the upper surface of the limiting block (333), and the fixing bolt (331) is located on the inside of the oblong hole. ​ 8. The fixture device for holding and fixing a mechanical part for machining according to claim 7, characterized in that, ​

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