High-stability fixing mechanism for machining and manufacturing mechanical parts

Abstract

The utility model belongs to the technical field of machining, and particularly relates to a high-stability fixing mechanism for machining and manufacturing mechanical parts, which solves the problems of poor stability and low machining precision in the prior art and comprises a fixing plate, and the top of the fixing plate is fixedly connected with a base through a bolt. The bottom of the fixing plate is fixedly connected with four symmetrically-arranged supporting legs through bolts, two symmetrically-arranged sliding blocks are assembled in the base in a sliding mode, racks are welded to one sides of the two sliding blocks, a gear is rotationally installed in the base, and by arranging a crank, the gear and other structures, the crank is rotated, so that the gear is driven to rotate, and the gear is driven to rotate. And a rack pushes a gear to rotate, so that the two V-shaped blocks move towards the middle at the same time, a limiting rod slides into a clamping groove, the sliding block is fixed, a workpiece is clamped, the workpiece cannot be loosened, and the machining precision is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a fixing mechanism for processing and manufacturing high-stability mechanical parts. Background Art

[0002] At present, with the continuous development of industrial technology, high-stability mechanical parts are playing an increasingly important role in various mechanical equipment. In order to ensure the processing accuracy and stability of these parts, a fixing mechanism is needed to ensure their stable position during the processing.

[0003] The authorization announcement number in the prior art is: CN210499304U, and its name is a fixed clamping mechanism for machining mechanical parts, including a sliding seat, a fixed seat, a lifting block, a gear pattern, a gear, a screw and a rotating handle. The screw is rotated by the rotating handle to drive the gear to rotate, and the gear engages with the gear pattern at the bottom of the lifting block to realize the lifting of the lifting platform. At the same time, the height of multiple lifting platforms is controlled to be uniform according to the rotating scale, and an appropriate number of lifting platforms are selected according to the actual length of the mechanical parts to avoid finding pads. The operation is simple and convenient. However, when using this patent, although the height of the lifting platform can be adjusted, there is no unified standard. It can only be observed manually during operation, which is inconvenient to use. Moreover, when fixing, the screw can only be tightened by hand, which is not only laborious to operate, but also unable to fix the position, resulting in poor stability during processing.

[0004] The authorization announcement number in the prior art is: CN208391858U, and the name is a fixing clamping mechanism for machining mechanical parts, including a base, a support plate, a disc, a second through hole, a ring, a first connecting plate, a plurality of clamping structures, a telescopic rod and a U-shaped clamping plate. The patent has a simple structure and is easy to operate. The ring is rotated on the disc to realize the clamping function of the clamping structure. It is suitable for machining and fixing of different types of mechanical parts, and improves production efficiency and machining accuracy. However, when clamping and fixing the workpiece, the patent is only suitable for machining some round and square parts, and the parts will vibrate during the machining process. The clamping structure of the patent is only fixed by several connecting rods, which makes its overall structure unstable and easily affects its machining accuracy during machining. Utility Model Content

[0005] The utility model aims to provide a fixing mechanism for machining and manufacturing mechanical parts with high stability, which solves the problems of poor stability and low machining accuracy.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fixing mechanism for machining and manufacturing high-stability mechanical parts, comprising a fixing plate, the top of the fixing plate is fixedly connected to a base by bolts, the bottom of the fixing plate is fixedly connected to four symmetrically arranged supporting feet by bolts, the base is internally slidably equipped with two symmetrically arranged sliders, one side of the two sliders is welded with racks, a gear is rotatably installed inside the base, the two racks are meshed with the gears, the base is internally slidably equipped with a limit rod, one end of the limit rod is inclined;

[0007] The other end of the limit rod is fixedly connected to a straight rod by means of screws, one end of the straight rod is fixedly connected to a pulling block by means of screws, a V-shaped block is arranged on the top of each of the two sliding blocks, a rubber pad is arranged inside the V-shaped block, a support plate is welded to one side of the base, a screw rod is connected to the internal thread of the support plate, and one end of the screw rod is rotatably mounted on one side of one of the V-shaped blocks.

[0008] Preferably, the insides of the four supporting legs are all slidably equipped with footings, and nuts are threadedly connected to the footings.

[0009] Preferably, a limiting groove is provided inside the base, the limiting rod is slidably connected inside the limiting groove, and a first spring is commonly connected between one end of the limiting rod and the side wall of the limiting groove to facilitate resetting of the limiting rod.

[0010] Preferably, a plurality of slots equidistantly distributed in an array are provided on one side of one of the sliders, and one end of the limiting rod is located inside one of the slots to facilitate fixing the slider.

[0011] Preferably, a threaded hole is provided inside the support plate, the screw rod is threadedly connected inside the threaded hole, and a crank is welded at one end of the screw rod to facilitate the movement of the V-shaped block.

[0012] Preferably, a slide groove is provided inside the base, the two sliders are slidably connected inside the slide groove, and the gear is rotatably installed inside the slide groove so that the two V-shaped blocks can move simultaneously.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model arranges the crank and gear structures, and the crank is turned to make the lead screw push the V-shaped block to move, and the slider moves forward accordingly, and the rack pushes the gear to rotate, so that the two V-shaped blocks move toward the middle at the same time, and the limit rod also slides into the inside of the slot to fix the slider, thereby clamping the workpiece, so that the workpiece will not loosen, and the processing accuracy is higher.

[0015] 2. The utility model provides structures such as supporting feet and ground feet. Due to the uneven ground, the entire device may shake when in use. Therefore, the nuts under the corresponding supporting feet can be adjusted to move the ground feet downward, so that all four ground feet are in contact with the ground, making the structure more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the base of the utility model;

[0018] Figure 3 It is a partial cross-sectional view of the base of the utility model;

[0019] Figure 4 It is a side sectional view of the V-shaped block and the sliding block of the utility model.

[0020] In the figure: 1. fixing plate; 2. supporting foot; 3. nut; 4. ground anchor; 5. base; 6. V-shaped block; 7. rubber pad; 8. supporting plate; 9. screw; 10. crank; 11. slider; 12. gear; 13. rack; 14. limit rod; 15. slot; 16. first spring; 17. straight rod; 18. pull block; 19. bump; 20. positioning rod; 21. second spring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4A fixing mechanism for machining and manufacturing high-stability mechanical parts includes a fixing plate 1, the top of the fixing plate 1 is fixedly connected to a base 5 by bolts, the bottom of the fixing plate 1 is fixedly connected to four symmetrically arranged supporting feet 2 by bolts, the base 5 is internally slidably equipped with two symmetrically arranged sliders 11, one side of the two sliders 11 is welded with racks 13, the base 5 is internally rotatably installed with a gear 12, the two racks 13 are meshed with the gear 12, the base 5 is internally slidably equipped with a limit rod 14, one end of the limit rod 14 is inclined, the other end of the limit rod 14 is fixedly connected to a straight rod 17 by screws, and one end of the straight rod 17 is fixedly connected to a pull block 1 by screws 8. A V-shaped block 6 is provided on the top of the two sliders 11, and a rubber pad 7 is provided inside the V-shaped block 6. A support plate 8 is welded on one side of the base 5. A screw rod 9 is connected to the inner thread of the support plate 8. One end of the screw rod 9 is rotatably installed on one side of one of the V-shaped blocks 6. By setting structures such as a crank 10 and a gear 12, the crank 10 is turned to make the screw rod 9 push the V-shaped block 6 to move, and the slider 11 moves forward accordingly. The rack 13 will push the gear 12 to rotate, so that the two V-shaped blocks 6 move to the middle at the same time, and the limit rod 14 also slides into the inside of the slot 15, so as to fix the slider 11, thereby clamping the workpiece, so that the workpiece will not loosen, and the processing accuracy is higher.

[0023] See also Figure 1 The four supporting feet 2 are all slidably equipped with foot 4, and the foot 4 is threaded with a nut 3. Through the arrangement of the supporting feet 2 and the foot 4 and other structures, due to the uneven ground, the entire device may shake when in use. Therefore, the nut 3 under the corresponding supporting foot 2 can be adjusted to move the foot 4 downward, so that the four foot 4 are in contact with the ground, making the structure more stable.

[0024] See also Figure 1-4 A limiting groove is provided inside the base 5, a limiting rod 14 is slidably connected inside the limiting groove, a first spring 16 is commonly connected between one end of the limiting rod 14 and the side wall of the limiting groove, a plurality of slots 15 equidistantly distributed in an array are provided on one side of one of the sliders 11, one end of the limiting rod 14 is located inside one of the slots 15, a threaded hole is provided inside the support plate 8, a screw rod 9 is threadedly connected inside the threaded hole, a crank 10 is welded to one end of the screw rod 9, a slide groove is provided inside the base 5, two sliders 11 are slidably connected inside the slide groove, and a gear 12 is rotatably installed inside the slide groove.

[0025] The specific implementation process of the utility model is as follows: put the workpiece between the two V-shaped blocks 6, and then turn the crank 10 to make the screw rod 9 rotate, thereby pushing the V-shaped block 6 to move to the middle, and the slider 11 at the bottom of the V-shaped block 6 moves together, and the rack 13 pushes the gear 12 to rotate, so that the rack 13 on the other side rotates accordingly, so that the two V-shaped blocks 6 move to the middle at the same time to clamp the workpiece, and when the slider 11 moves, the limit rod 14 is also pushed to one side until the workpiece is clamped. Due to the action of the first spring 16, the limit rod 14 is ejected into the inside of the slider 11, so that the slider 11 will not rebound, and the workpiece is more stable and accurate during processing. In addition, a rubber pad 7 is provided on the inclined surface of the V-shaped block 6, which will not damage the surface of the workpiece and has a better practical effect.

[0026] Furthermore, during installation, the entire device may easily shake due to an uneven ground, so a foot 4 is provided at the bottom of the supporting foot 2. By rotating the position of the nut 3 on the foot 4 and then adjusting its height, the four foots 4 are all in contact with the ground, making the entire structure more stable. A groove is provided inside the slider 11, and a protrusion 19 is welded at the bottom of the V-shaped block 6. The protrusion 19 is located inside the groove. A positioning groove is provided inside the slider 11, and a positioning rod 20 is slidably connected inside the positioning groove. One end of the positioning rod 20 is spherical, and one end of the limiting rod 14 is located inside the protrusion 19. A second spring 21 is commonly connected between the limiting rod 14 and the positioning groove, so that the entire V-shaped block 6 can be disassembled separately to facilitate regular maintenance of the interior of the base 5, thereby extending the service life.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixing mechanism for machining and manufacturing high-stability mechanical parts, comprising a fixing plate (1), characterized in that: The top of the fixing plate (1) is fixedly connected to a base (5) by bolts, and the bottom of the fixing plate (1) is fixedly connected to four symmetrically arranged supporting feet (2) by bolts, and the base (5) is internally slidably equipped with two symmetrically arranged sliders (11), one side of each of the two sliders (11) is welded with a rack (13), and a gear (12) is rotatably installed inside the base (5), and the two racks (13) are meshed with the gear (12), and the base (5) is internally slidably equipped with a limit rod (14), and one end of the limit rod (14) is inclined; The other end of the limit rod (14) is fixedly connected to a straight rod (17) by means of screws, and one end of the straight rod (17) is fixedly connected to a pull block (18) by means of screws. A V-shaped block (6) is arranged on the top of each of the two sliding blocks (11), and a rubber pad (7) is arranged inside the V-shaped block (6). A support plate (8) is welded to one side of the base (5), and a screw rod (9) is connected to the inner thread of the support plate (8), and one end of the screw rod (9) is rotatably mounted on one side of one of the V-shaped blocks (6).

2. A fixing mechanism for machining and manufacturing high-stability mechanical parts according to claim 1, characterized in that: The insides of the four supporting legs (2) are all slidably equipped with footings (4), and nuts (3) are threadedly connected to the footings (4).

3. The fixing mechanism for machining and manufacturing high-stability mechanical parts according to claim 1, characterized in that: A limiting groove is provided inside the base (5), the limiting rod (14) is slidably connected inside the limiting groove, and a first spring (16) is commonly connected between one end of the limiting rod (14) and the side wall of the limiting groove.

4. The fixing mechanism for machining and manufacturing high-stability mechanical parts according to claim 1, characterized in that: One side of one of the slide blocks (11) is provided with a plurality of slots (15) distributed in an array and at equal intervals, and one end of the limiting rod (14) is located inside one of the slots (15).

5. The fixing mechanism for machining and manufacturing high-stability mechanical parts according to claim 1, characterized in that: A threaded hole is provided inside the support plate (8), the screw rod (9) is threadedly connected inside the threaded hole, and a crank (10) is welded to one end of the screw rod (9).

6. The fixing mechanism for machining and manufacturing high-stability mechanical parts according to claim 1, characterized in that: A slide groove is provided inside the base (5), the two sliders (11) are slidably connected inside the slide groove, and the gear (12) is rotatably installed inside the slide groove.

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