Precise mechanical assembly fixture

Abstract

The utility model relates to the technical field of clamps, in particular to a precision mechanical assembly clamp which comprises an operation table, a limiting sliding groove is formed in the operation table in a penetrating mode, a sliding block matched with the limiting sliding groove is installed in the limiting sliding groove in a sliding mode, and the sliding block and a special-shaped clamp are installed in a sliding mode. The precise mechanical assembly clamp is characterized in that three protruding blocks are installed on the inner wall of the special-shaped clamp in a sliding mode, in the precise mechanical assembly clamp, the three protruding blocks are arranged on the special-shaped clamp and can horizontally move in the limiting sliding grooves, and the positions of the protruding blocks can be adjusted according to the edge shapes of mechanical parts of different sizes, so that the clamp can meet the variable production requirements; the clamping device adapts to workpieces with changed shapes, sizes or material characteristics, and meanwhile, due to further locking of the protruding block part, the clamping stability is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a precision mechanical assembly clamp. Background Art

[0002] Mechanical parts processing is a high-precision, high-quality mechanical manufacturing technology, whose processing accuracy can reach or even exceed 1 micron. It is widely used in aerospace, automobile manufacturing, electronic equipment, medical equipment and other fields. In the aerospace field, mechanical parts processing is used to manufacture aircraft engines, missile parts and other key parts; in the field of medical equipment, precision processing technology is widely used in the manufacture of surgical instruments, implants and diagnostic equipment; in automobile manufacturing, mechanical parts processing is used to produce engine parts, transmission systems and precision instruments. In the field of electronic products, mechanical parts processing technology is used to manufacture key parts such as mobile phone casings, chip packaging and micro sensors.

[0003] In the modern industrial manufacturing system, precision mechanical assembly fixtures are core auxiliary equipment. Their function is to accurately fix and position the workpiece to be processed, thereby significantly improving the operating efficiency of the production line and ensuring the quality stability of the final product. Nevertheless, given that traditional precision mechanical assembly fixtures are mostly tailored for specific parts or single processes, when dealing with increasingly complex and diverse production environments and changing demands, especially when the workpiece geometry, dimensions, and material properties change, such special fixtures are often difficult to achieve efficient compatibility and flexible adjustment. At the same time, there are also situations where irregularly shaped mechanical parts cannot be stably clamped. In view of this, a precision mechanical assembly fixture is provided. Utility Model Content

[0004] The main purpose of the utility model is to provide a precision mechanical assembly fixture to solve the problems of low flexibility and unstable support in production and processing proposed in the relevant technology.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a precision mechanical assembly fixture is provided, including an operating table, a limiting groove is provided through the operating table, a sliding block matching with the limiting groove is slidably installed in the limiting groove, the sliding block is slidably installed with the special-shaped fixture, and three protrusions are slidably installed on the inner wall of the special-shaped fixture; a limiting groove is provided on the inner wall of the special-shaped fixture, the protrusion is slidably installed in the limiting groove, and a positioning groove matching the raised sliding block is provided on the inner wall of the limiting groove, a first screw is rotatably installed through the special-shaped fixture, and one end of the first screw extends into the limiting groove and is rotatably connected to the protrusion.

[0006] Furthermore, a support base is provided under the operating table, the support base and the operating table are rotatably connected, a screw hole is opened through the support base, a bolt is installed with a thread in the screw hole, and the bolt is fixedly welded at the center point of the lower surface of the operating table.

[0007] Furthermore, a second screw is fixedly mounted on the lower end of the slider, the second screw passes through the operating table, and one end of the second screw is fixedly connected to the slider, and the other end is threadedly engaged with a nut.

[0008] Furthermore, the slide block is provided with a slide groove, a fixing bolt is welded and installed on the lower end of the outer wall of the special-shaped clamp, a nut is threadedly installed on the fixing bolt, and the special-shaped clamp is slidably installed in the slide block through the fixing bolt.

[0009] Furthermore, there are four special-shaped clamps, which are symmetrical along the center of the circular surface of the operating table.

[0010] Furthermore, the rectangular length of the protrusion is smaller than the length of the inner wall of the special-shaped fixture, and the three protrusions are arranged at equal distances on the height of the inner wall of the special-shaped fixture.

[0011] Furthermore, a slide groove is provided in the operating table, a positioning baffle is slidably installed in the slide groove, a screw nut is fixedly installed at the bottom of the positioning baffle, the screw nut is slidably installed in the slide groove, and the screw nut and the ball screw thread cooperate.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] In this precision mechanical assembly fixture, three protrusions are set on the special-shaped fixture, which can move horizontally in the limiting slide groove. For mechanical accessories of different sizes, the position of the protrusions can be adjusted according to their edge shapes, so that the fixture can meet changing production needs and adapt to workpieces with changes in shape, size or material properties. At the same time, due to the further locking of the protrusion part, the clamping stability is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an overall schematic diagram of the mechanical assembly fixture in the preferred embodiment of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the operating table in the mechanical assembly in the preferred embodiment of the utility model;

[0016] Figure 3 It is a schematic structural diagram of a special-shaped clamp in a preferred embodiment of the utility model.

[0017] Figure 4 It is a cross-sectional schematic diagram of a special-shaped clamp in a preferred embodiment of the utility model.

[0018] Figure 5 It is a structural schematic diagram of the positioning baffle in the preferred embodiment of the utility model.

[0019] Illustration Description:

[0020] 1. Operating table; 2. Special-shaped fixture; 21. Fixing bolt; 3. Positioning baffle; 4. Support seat; 5. Bolt; 6. Bump; 61. Raised slider; 62. First screw; 7. Slider; 71. Second screw; 81. Screw nut; 82. Ball screw. DETAILED DESCRIPTION

[0021] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0022] See also Figure 1-Figure 5 As shown, the purpose of this embodiment is to provide a precision mechanical assembly fixture, including an operating table 1, a limiting slide groove is provided through the operating table 1, a sliding block 7 matching the limiting slide groove is slidably provided inside the limiting slide groove, a special-shaped fixture 2 is installed on the sliding block 7, and three protrusions 6 are slidably installed on the inner wall of the special-shaped fixture 2.

[0023] A support base 4 is provided under the operating table 1, and the support base 4 is rotatably connected to the operating table 1. A screw hole is penetrated through the support base 4, and a bolt 5 is installed in the inner thread of the screw hole. The bolt 5 is fixedly welded at the center point of the lower surface of the operating table 1. By rotating the bolt 5, the entire operating table 1 can be moved up and down and rotated to facilitate adjustment of the height and angle.

[0024] A second screw 71 is provided at the lower end of the slider 7. The second screw 71 penetrates the operating table 1 and is slidably connected therebetween. One end of the second screw 71 is fixedly connected to the slider 7, and the other end is threadedly matched with the nut. By pushing the slider 7, the slider 7 can be moved horizontally in the slide groove, close to or away from the center of the operating table 1. The slider 7 can be fixed by tightening the nut, which is convenient for adjustment according to the size of the mechanical accessories.

[0025] A slide groove is provided inside the slider 7, a fixing bolt 21 is welded and installed at the lower end of the outer wall of the special-shaped clamp 2, a nut is threadedly installed on the fixing bolt 21, and the special-shaped clamp 2 is slidably installed in the slider 7 through the fixing bolt 21. The fixing bolt 21 of the special-shaped clamp 2 slides up and down in the slide groove of the slider 7, and the height adjustment can be achieved by tightening the nut.

[0026] There are four special-shaped clamps 2, and they are symmetrical along the center of the circular surface of the operating table 1. A limited sliding groove is provided on the inner wall of the special-shaped clamp 2, and a raised sliding block 61 is fixedly installed on the protrusion 6. The protrusion 6 is slidably installed in the limited sliding groove, and a positioning sliding groove matched with the raised sliding block 61 is provided on the inner wall of the limited sliding groove. A first screw 62 is penetrated by the special-shaped clamp 2, and the two are threadedly connected, and one end of the first screw 62 extends into the limited sliding groove and is rotatably connected with the protrusion 6, and the three protrusions 6 are distributed at equal distances inside the special-shaped clamp 2. Even if the edge shape of the mechanical accessory is irregular, the protrusion 6 is driven by the first screw 62 to slide horizontally in the limited sliding groove, and the sliding distance of each protrusion 6 can be freely adjusted. Therefore, by having multiple protrusions 6 fit the edge of the mechanical accessory, it can not only play a further fixing role, but also increase the scope of application, and is suitable for mechanical accessories of different shapes and sizes.

[0027] A slide groove is provided in the operating table 1, and a positioning baffle 3 is slidably installed in the slide groove. A screw nut 81 is fixedly installed at the bottom of the positioning baffle 3. The screw nut 81 is slidably installed in the slide groove, and the screw nut 81 and the ball screw 82 are threadedly matched. When the size of the mechanical accessory is small, the ball screw 82 is rotated to drive the screw nut 81 to move horizontally, and the positioning baffle 3 is moved toward the center, which can better position the mechanical accessory.

[0028] Working principle: When the utility model is used in practice, the height of the operating table 1 can be adjusted by screwing the bolt 5, and the ball screw 82 can be rotated to make the screw nut 81 move horizontally, close to or away from the center of the operating table. According to the size of the mechanical accessories, the position of the positioning baffle 3 is fixed, the mechanical accessories are placed on the operating table 1, and the slider 7 is pushed to move horizontally in the slide groove until the special-shaped clamp 2 reaches the edge of the mechanical accessories, and the nut is tightened to fix the slider 7. In this way, mechanical accessories of different lengths or widths can be clamped and fixed. According to the horizontal height of the mechanical accessories, the special-shaped clamp 2 is slid up and down in the slide groove, and the nut is tightened to fix the special-shaped clamp 2. Finally, according to the edge shape of the mechanical accessories, the three protrusions 6 are slid horizontally along the limiting slide groove so that the protrusions 6 support the edge of the mechanical accessories, thereby achieving further fixing effect, ensuring the flexibility of mechanical accessories of different shapes and sizes in the special-shaped clamp 2, and improving the scope of application.

[0029] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A precision mechanical assembly fixture, comprising an operating table (1), wherein a limit slide groove is provided through the operating table (1), a matching slider (7) is slidably mounted in the limit slide groove, and the slider (7) is slidably mounted on a special-shaped fixture (2), characterized in that: The inner wall of the special-shaped clamp (2) is slidably mounted with three protrusions (6), the inner wall of the special-shaped clamp (2) is provided with a limit slide groove, the protrusion (6) is slidably mounted in the limit slide groove, a protruding slider (61) is fixedly mounted on the protrusion (6), and the inner wall of the limit slide groove is provided with a positioning slide groove matched with the protruding slider (61), a first screw rod (62) is rotatably mounted through the special-shaped clamp (2), and one end of the first screw rod (62) extends into the limit slide groove and is rotatably connected to the protrusion (6).

2. The precision mechanical assembly fixture according to claim 1, characterized in that: A support base (4) is provided below the operating table (1), the support base (4) and the operating table (1) are rotatably connected, a screw hole is provided through the support base (4), a bolt (5) is installed in the inner thread of the screw hole, and the bolt (5) is fixedly welded at the center point of the lower surface of the operating table (1).

3. The precision mechanical assembly fixture according to claim 1, characterized in that: A second screw rod (71) is fixedly mounted on the lower end of the slider (7), the second screw rod (71) passes through the operating table (1), and one end of the second screw rod (71) is fixedly connected to the slider (7), and the other end is threadably engaged with a nut.

4. The precision mechanical assembly fixture according to claim 1, characterized in that: The slide block (7) is provided with a slide groove extending therethrough, a fixing bolt (21) is welded and installed at the lower end of the outer wall of the special-shaped clamp (2), a nut is threadedly installed on the fixing bolt (21), and the special-shaped clamp (2) is slidably installed in the slide block (7) via the fixing bolt (21).

5. The precision mechanical assembly fixture according to claim 1, characterized in that: Four special-shaped clamps (2) are provided and are symmetrical along the center of the circular surface of the operating table (1).

6. The precision mechanical assembly fixture according to claim 1, characterized in that: The rectangular length of the protrusion (6) is smaller than the length of the inner wall of the special-shaped clamp (2), and the three protrusions (6) are arranged at equal distances on the height of the inner wall of the special-shaped clamp (2).

7. The precision mechanical assembly fixture according to claim 1, characterized in that: A slide groove is provided in the operating table (1), a positioning baffle (3) is slidably mounted in the slide groove, a screw nut (81) is fixedly mounted at the bottom of the positioning baffle (3), the screw nut (81) is slidably mounted in the slide groove, and the screw nut (81) and the ball screw (82) are threadably matched.

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