Fixing mechanism for precision part machining

Abstract

The utility model discloses a fixing mechanism for precision part machining, which comprises a fixing seat, an electric push rod is fixedly mounted at the bottom end of the fixing seat, a transmission angle plate is movably mounted on the inner side of the bottom end of the fixing seat, and two transmission sliding seats are fixedly mounted at the upper end of the transmission angle plate. One sides of the transmission sliding seats are slidably connected with guide sliding plates, four connecting frames are movably installed on the inner sides of the upper ends of the two transmission sliding seats, clamping seats are fixedly installed on one sides of the four connecting frames, and two connecting rods are rotatably connected to the inner sides of the bottom ends of the four clamping seats. An anti-skid contact arc plate is fixedly arranged at the upper end of the clamping base, and second movable grooves are formed in the two sides of the upper end of the fixing base. According to the clamping device, the workpiece is continuously and elastically clamped, the workpiece can be prevented from falling off before and after being fixedly clamped, the placing posture can be adjusted while clamping is conducted, the machining area of the workpiece is increased, and rapid clamping can be achieved conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of jigs, in particular to a fixing mechanism for precision part processing. Background Technique

[0002] Precision machining refers to a machining process with relatively high machining accuracy and surface quality. Its machining accuracy is usually 10 - 0.1 microns, and the surface roughness is below 0.1 micron, including diamond turning, diamond boring, honing, lapping, ultra-precision machining, abrasive belt grinding, and mirror grinding, etc. These methods are all aimed at improving the accuracy and quality of the machined surface. Precision machining occupies an important position in the manufacturing industry and is commonly used for the machining of key parts such as precision lead screws, precision gears, precision worm wheels, precision guide rails, and precision bearings. When performing precision machining on a workpiece, it is necessary to fix and clamp it.

[0003] When the existing jig clamps a workpiece, it is not convenient to adjust the placement posture of the workpiece while clamping, thereby limiting the machining area of the workpiece, and it is not convenient to quickly and stably clamp the workpiece. Therefore, it does not meet the existing requirements. For this reason, we propose a fixing mechanism for precision part processing. Content of the Utility Model

[0004] The purpose of the utility model is to provide a fixing mechanism for precision part processing, so as to solve the problems mentioned in the above background technique that when the existing jig clamps a workpiece, it is not convenient to adjust the placement posture of the workpiece while clamping, thereby limiting the machining area of the workpiece, and it is not convenient to quickly and stably clamp the workpiece.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A fixing mechanism for precision part processing, including a fixed seat, an electric push rod is fixedly installed at the bottom end of the fixed seat, a transmission angle plate is movably installed inside the bottom end of the fixed seat, two transmission sliders are fixedly installed at the upper end of the transmission angle plate, a guiding slide plate is slidably connected to one side of the transmission slider, four connecting frames are movably installed inside the upper ends of the two transmission sliders, a clamping seat is fixedly installed on one side of each of the four connecting frames, two connecting rods are rotatably connected to the inside of the bottom ends of the four clamping seats, an anti-slip contact arc plate is fixedly provided at the upper end of the clamping seat, second movable grooves are provided on both sides of the upper end of the fixed seat, and first movable grooves are provided on both sides of the second movable grooves.

[0006] Preferably, a support spring is movably installed inside the second movable groove, a connecting seat is installed inside the support spring, a mounting plate is installed at one end of the connecting seat, and a guiding pressure wheel is installed at the other end of the connecting seat.

[0007] Preferably, the output end of the electric push rod penetrates through the fixed seat and is fixedly connected to the bottom end of the transmission angle plate. The fixed seat is fixedly connected to two guiding slide plates. A chute is provided on one side of the guiding slide plate. The bottom end of the transmission slide seat is inserted into the inner side of the chute.

[0008] Preferably, a kidney-shaped hole is provided at the upper end of the transmission slide seat. The connecting frame is inserted into the inner side of the kidney-shaped hole. The bottom ends of the four clamping seats are rotatably connected to the fixed seat through two connecting rods.

[0009] Preferably, the upper ends of the four clamping seats all penetrate through the first movable groove and are inserted into the inner side of the upper end of the fixed seat. The four clamping seats are equally divided into two groups. The two groups of clamping seats swing in opposite or opposite directions relative to the axis of the connecting rod.

[0010] Preferably, one end of the connecting seat penetrates through the second movable groove and is inserted into the inner side of the mounting plate. The fixed seat is fixedly connected to two mounting plates. A nut is provided at one end of the connecting seat. The other end of the connecting seat is rotatably connected to the guiding pressing wheel. The mounting plate and the connecting seat are connected by a supporting spring.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. In the present utility model, the workpiece is inserted into the inner side of the upper end of the fixed seat, so that when the two guiding pressing wheels are inserted into the inner side of the fixed seat, the supporting spring is driven to contract through the connecting seat. Then, the two connecting seats move in opposite directions. Further, under the supporting action of the mounting plate, the supporting spring drives the two guiding pressing wheels through the connecting seat to elastically clamp the workpiece, which is convenient for adjusting the position of the workpiece. The electric push rod drives the two transmission slide seats to slide upward on the inner side of the guiding slide plate through the transmission angle plate. Then, the transmission slide seat drives the four clamping seats to swing synchronously relative to the connecting rod through the connecting frame;

[0013] 2. In the present utility model, the anti-slip contact arc plate driven by the clamping seat can fixedly clamp the workpiece to prevent sliding. After the four clamping seats swing in the reverse direction and reset, the two guiding pressing wheels can continuously elastically clamp the workpiece, which can prevent the workpiece from falling after the clamping seat is loosened. By continuously elastically clamping the workpiece, it can prevent the workpiece from falling before and after fixed clamping, and can adjust the placement posture during clamping, improve the processing area of the workpiece, and facilitate rapid clamping. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the whole of the present utility model;

[0015] Figure 2 is a top view of the whole of the present utility model;

[0016] Figure 3This is a schematic cross-sectional structure diagram of the whole of the utility model;

[0017] Figure 4 This is a schematic partial structure diagram of the clamping seat of the utility model.

[0018] In the figure: 1, fixed seat; 2, electric push rod; 3, transmission angle plate; 4, guide slide plate; 5, transmission slide seat; 6, clamping seat; 7, connecting frame; 8, connecting rod; 9, first movable groove; 10, second movable groove; 11, mounting plate; 12, anti-slip contact arc plate; 13, guide pressure wheel; 14, connecting seat; 15, support spring. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0020] The electric push rod 2 (model number HTKC-35) mentioned in the present utility model can be obtained by purchasing from the market or customizing privately.

[0021] Please refer to Figure 1 and Figure 3 , an embodiment provided by the present utility model: a fixing mechanism for precision part processing, including a fixed seat 1, an electric push rod 2 is fixedly installed at the bottom end of the fixed seat 1, a transmission angle plate 3 is movably installed inside the bottom end of the fixed seat 1, two transmission slide seats 5 are fixedly installed at the upper end of the transmission angle plate 3, the output end of the electric push rod 2 penetrates through the fixed seat 1 and is fixedly connected to the bottom end of the transmission angle plate 3, the fixed seat 1 is fixedly connected to two guide slide plates 4, a chute is provided on one side of the guide slide plate 4, and the bottom end of the transmission slide seat 5 is inserted into the inside of the chute. When the electric push rod 2 pushes the transmission slide seat 5 to move through the transmission angle plate 3, the guide slide plate 4 can guide the transmission slide seat 5 to keep the movement adjustment of the transmission slide seat 5 stable.

[0022] Please refer to Figures 1 to 3 , one side of the transmission slide seat 5 is slidably connected to the guide slide plate 4, four connecting frames 7 are movably installed inside the upper ends of the two transmission slide seats 5, a clamping seat 6 is fixedly installed on one side of each of the four connecting frames 7, two connecting rods 8 are rotatably connected to the inside of the bottom ends of the four clamping seats 6, a waist-shaped hole is provided at the upper end of the transmission slide seat 5, the connecting frame 7 is inserted into the inside of the waist-shaped hole, the bottom ends of the four clamping seats 6 are rotatably connected to the fixed seat 1 through the two connecting rods 8, the upper ends of the four clamping seats 6 all penetrate through the first movable groove 9 and are inserted into the inside of the upper end of the fixed seat 1, the four clamping seats 6 are equally divided into two groups, and the two groups of clamping seats 6 swing in opposite or opposite directions relative to the axis of the connecting rod 8. By the relative swing of the two clamping seats 6, the fixing and clamping and loosening of the workpiece can be realized;

[0023] The upper end of the clamping seat 6 is fixedly provided with an anti-slip contact arc plate 12. On both sides of the upper end of the fixed seat 1, there are second movable grooves 10. On both sides of the second movable grooves 10, there are first movable grooves 9. Through the first movable grooves 9 and the second movable grooves 10, it is convenient to install the clamping seat 6 and the support spring 15, and the adjustment of the clamping seat 6 and the support spring 15 can be realized.

[0024] Please refer to Figures 1 to 4 , a support spring 15 is movably installed inside the second movable groove 10. A connecting seat 14 is installed inside the support spring 15. One end of the connecting seat 14 is installed with a mounting plate 11, and the other end of the connecting seat 14 is installed with a guiding pressure wheel 13. One end of the connecting seat 14 penetrates through the second movable groove 10 and is inserted into the inside of the mounting plate 11. The fixed seat 1 is fixedly connected to the two mounting plates 11. One end of the connecting seat 14 is provided with a nut, and the other end of the connecting seat 14 is rotatably connected to the guiding pressure wheel 13. The mounting plate 11 and the connecting seat 14 are connected by the support spring 15. Under the supporting action of the support spring 15, the connecting seat 14 drives the guiding pressure wheel 13 to elastically clamp the workpiece, thereby avoiding the workpiece from falling and facilitating the attitude adjustment.

[0025] During use, the output end of the electric push rod 2 penetrates through the fixed seat 1 and is fixedly connected to the transmission angle plate 3. After the power is turned on, when fixedly clamping a workpiece for precision machining, the workpiece is inserted into the inside of the upper end of the fixed seat 1. The connecting seat 14 and the mounting plate 11 are connected by the support spring 15, and the connecting seat 14 is rotatably connected to the guiding pressure wheel 13, so that when the workpiece is inserted into the inside of the fixed seat 1, the two guiding pressure wheels 13 drive the support spring 15 to contract through the connecting seat 14. Then, the two connecting seats 14 move in opposite directions. Then, under the supporting action of the mounting plate 11, the support spring 15 drives the two guiding pressure wheels 13 through the connecting seat 14 to realize the elastic clamping of the workpiece, which is convenient for adjusting the position of the workpiece;

[0026] Start the electric push rod 2, so that the electric push rod 2 drives the two transmission sliding seats 5 to slide upward inside the guiding slide plate 4 through the transmission angle plate 3 under the supporting action of the fixed seat 1. Then, the transmission sliding seats 5 drive the four clamping seats 6 to swing relative to the connecting rod 8 through the connecting frame 7. The four clamping seats 6 are equally divided into two groups, and the two groups of clamping seats 6 swing towards each other relative to the connecting rod 8. Then, the clamping seat 6 drives the anti-slip contact arc plate 12 to fixedly clamp the workpiece to prevent sliding. After the four clamping seats 6 swing back in the reverse direction and reset, the two guiding pressure wheels 13 can continuously elastically clamp the workpiece, which can prevent the workpiece from falling after the clamping seat 6 is loosened.

[0027] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claimed rights.

Claims

1. A fixing mechanism for precision part processing, comprising a fixing base (1), characterized in that: The bottom end of the fixed seat (1) is fixedly installed with an electric push rod (2). The inner side of the bottom end of the fixed seat (1) is movably installed with a transmission angle plate (3). The upper end of the transmission angle plate (3) is fixedly installed with two transmission sliding seats (5). One side of the transmission sliding seat (5) is slidably connected with a guiding sliding plate (4). The inner sides of the upper ends of the two transmission sliding seats (5) are movably installed with four connecting frames (7). One side of each of the four connecting frames (7) is fixedly installed with a clamping seat (6). The inner sides of the bottom ends of the four clamping seats (6) are rotatably connected with two connecting rods (8). The upper end of the clamping seat (6) is fixedly provided with an anti-slip contact arc plate (12). Both sides of the upper end of the fixed seat (1) are provided with second movable grooves (10). Both sides of the second movable groove (10) are provided with first movable grooves (9).

2. The fixing mechanism for precision part processing according to claim 1, characterized in that: A support spring (15) is movably installed inside the second movable groove (10). A connecting seat (14) is installed inside the support spring (15). One end of the connecting seat (14) is installed with a mounting plate (11). The other end of the connecting seat (14) is installed with a guiding pressure wheel (13).

3. The fixing mechanism for precision part machining according to claim 1, wherein: The output end of the electric push rod (2) penetrates through the fixed seat (1) and is fixedly connected with the bottom end of the transmission angle plate (3). The fixed seat (1) is fixedly connected with the two guiding sliding plates (4). One side of the guiding sliding plate (4) is provided with a chute. The bottom end of the transmission sliding seat (5) is inserted into the inside of the chute.

4. The fixing mechanism for precision part processing according to claim 3, characterized in that: The upper end of the transmission sliding seat (5) is provided with a kidney-shaped hole. The connecting frame (7) is inserted into the inside of the kidney-shaped hole. The bottom ends of the four clamping seats (6) and the fixed seat (1) are rotatably connected through two connecting rods (8).

5. The fixing mechanism for precision part processing according to claim 4, characterized in that: The upper ends of the four clamping seats (6) all penetrate through the first movable groove (9) and are inserted into the inside of the upper end of the fixed seat (1). The four clamping seats (6) are equally divided into two groups. The two groups of clamping seats (6) swing in opposite or the same directions relative to the axis of the connecting rod (8).

6. The fixing mechanism for precision part processing according to claim 2, characterized in that: One end of the connecting seat (14) penetrates through the second movable groove (10) and is inserted into the inside of the mounting plate (11). The fixed seat (1) is fixedly connected with the two mounting plates (11). One end of the connecting seat (14) is provided with a nut. The other end of the connecting seat (14) is rotatably connected with the guiding pressure wheel (13). The mounting plate (11) and the connecting seat (14) are connected through the support spring (15).

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