Polishing device for high-precision screw machining

Abstract

The utility model discloses a polishing device for high-precision screw machining, which comprises an operating platform, a groove is arranged on the operating platform, two threaded blocks are slidably arranged in the groove and connected through an elastic component, a first clamping component is arranged on the two threaded blocks, a driving mechanism is arranged in the groove, and a second clamping component is arranged on the driving mechanism. A second clamping assembly is further installed on the operation table and comprises an installation ring, second springs are symmetrically arranged on the inner wall of the installation ring, the ends of the second springs are connected with a limiting plate, a heating plate is arranged in a transverse plate where the limiting plate is located, and a grinding device body is arranged on the operation table. According to the grinding device for machining the high-precision screw, the stability of the screw in the machining process is improved through cooperation between the first clamping assembly and the second clamping assembly, the heating plate is arranged in the limiting plate of the second clamping assembly, thermal stress caused by temperature difference in the grinding process of the screw can be effectively reduced, and the grinding quality of the screw is improved. The service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of screw grinding technology, specifically a grinding device for high-precision screw processing. Background Technology

[0002] In utility model patent application CN219426485U, published on July 28, 2023, entitled "A Grinding Mechanism for Fastening Screw Processing," this utility model discloses a grinding mechanism for fastening screw processing, belonging to the field of screw processing technology. The key technical point is that the grinding mechanism for fastening screw processing includes a frame, with a support frame on the inner side of the frame. Both inner sides of the support frame are provided with anti-slip clamps, and a rotating rod is fixedly connected to one side of the support frame. A motor is fixedly connected to one side of the outer wall of the frame via bolts. The proposed method allows for the clamping and fixing of screws of different specifications through the support frame and its components, as well as the rotation of the screw. Simultaneously, the lateral adjustment of the grinding disc allows for grinding of the screw, avoiding the time-consuming and laborious problem of manually holding the screw or using a handheld grinding device.

[0003] In the aforementioned patent, when large screws are being ground, thermal stress may have various effects on the screws. Thermal stress can cause fatigue failure of the screw material, which is caused by thermal stress cycles resulting from temperature gradient cycles. Furthermore, thermal stress can also cause cracks in the screws, affecting their service life and processing efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a high-precision grinding device for screw processing to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-precision screw grinding device, comprising an operating table, a groove on the operating table, two threaded blocks slidably disposed within the groove, and the two threaded blocks being connected by an elastic component, and a first clamping component on each of the two threaded blocks, which facilitates screw fixing through the cooperation of the two sets of first clamping components, a driving mechanism for moving one of the threaded blocks being disposed within the groove, a second clamping component also being mounted on the operating table, the second clamping component including a mounting ring disposed on the operating table, a second spring symmetrically disposed on the inner wall of the mounting ring, a limiting plate connected to the end of the second spring, and the limiting plate being composed of a horizontal plate and an inclined plate, a heating plate being disposed within the horizontal plate where the limiting plate is located, a limiting mechanism for limiting the screw being disposed within the mounting ring, and a grinding device body for grinding the screw being disposed on the operating table.

[0006] Furthermore, the limiting mechanism includes two extrusion plates slidably disposed within the mounting ring, the top ends of the two extrusion plates being rotatably connected, each extrusion plate having an elliptical groove, a circular plate being rotatably disposed within the elliptical groove, the mounting ring having symmetrically formed arc-shaped grooves, a bidirectional screw being installed within the arc-shaped grooves, and the bidirectional screw being threadedly connected to the circular plate, with knobs provided at both ends of the bidirectional screw.

[0007] Furthermore, the elastic component includes a connecting sleeve connected to one of the threaded blocks, a first spring installed inside the connecting sleeve, an end of the first spring being connected to a connecting rod, and the end of the connecting rod away from the first spring being connected to another threaded block.

[0008] Furthermore, the drive mechanism includes a first motor disposed on one side of the operating table, the output end of the first motor is connected to a threaded rod, and the threaded rod is located in a groove, the threaded rod being threadedly connected to one of the threaded blocks.

[0009] Furthermore, the first clamping assembly includes a mounting bracket mounted on a threaded block, a mounting plate rotatably mounted on the mounting bracket, a mounting sleeve fixedly mounted at one end of the mounting plate, and an electric push rod fixedly mounted at the other end of the mounting plate, with an adjustment assembly mounted at the end of the electric push rod.

[0010] Furthermore, the adjustment assembly includes a first mounting block sleeved on the electric push rod, a second mounting block mounted on the inner wall of the mounting sleeve, a plurality of first hinge rods and second hinge rods respectively hinged on the first and second mounting blocks, and each first hinge rod and second hinge rod is rotatably connected at the middle position, the ends of the first hinge rod and the second hinge rod are connected to a limiting block, a plurality of sliding grooves that cooperate with the limiting blocks are opened on the mounting plate, and a rotating mechanism is mounted on one side of one of the mounting frames.

[0011] Furthermore, the rotating mechanism includes a motor frame mounted on one of the mounting brackets, on which a second motor is fixedly mounted, and the output end of the second motor is connected to an electric push rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the grinding device for high-precision screw processing is reasonable and has the following advantages:

[0013] (1) By setting a heating plate in the limiting plate of the second clamping assembly, the device can effectively reduce the thermal stress caused by temperature difference during the grinding process of the screw. During the screw processing, the heat generated by grinding will cause the surface temperature of the screw to rise while the internal temperature is relatively low. This temperature difference will lead to the generation of thermal stress, which may cause cracks on the surface of the screw and affect its service life. By setting a heating plate in the limiting plate, the surface temperature of the screw can be raised evenly, reducing the thermal stress caused by temperature difference. The heating plate can preheat the screw, making the temperature change more uniform during the grinding process and avoiding local temperature changes that cause cracks. This method not only reduces the generation of cracks on the surface of the screw, but also reduces the risk of screw deformation caused by thermal stress, thereby extending the service life of the screw. In addition, the device can also improve the overall performance of the screw during the processing process through the preheating function of the heating plate, making it more stable and reliable in subsequent use.

[0014] (2) The device significantly improves the stability of the screw during the processing by cooperating with the first clamping component and the second clamping component. The first clamping component can be flexibly adjusted according to the screw of different sizes to ensure that the screw is subjected to uniform force when clamped and to prevent it from vibrating during the grinding process, thereby improving the processing accuracy of the screw. The extrusion plate and bidirectional screw design in the second clamping component further enhance the stability of the screw. By adjusting the extrusion plate, it can be made to fit tightly against the screw surface to form a double limit, which effectively prevents the screw from radially shifting during the grinding process. This double clamping and limiting mechanism ensures that the screw always remains stable during the processing process, reduces the defect rate caused by processing errors, and improves production efficiency and product quality. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of the first clamping component and the second clamping component of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the elastic component of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the first clamping component of this utility model;

[0019] Figure 5 This is a structural diagram showing the disassembled first clamping component of this utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the second clamping component of this utility model;

[0021] Figure 7This is a schematic diagram of the limiting mechanism of this utility model.

[0022] In the diagram: 100, operating table; 101, grinding device body; 200, groove; 201, threaded rod; 202, first motor; 203, threaded block; 204, connecting sleeve; 205, first spring; 206, connecting rod; 300, mounting bracket; 301, mounting plate; 302, mounting sleeve; 303, motor frame; 304, second motor; 305, electric push rod; 306, first mounting block; 307, second mounting block; 308, first hinge rod; 309, second hinge rod; 310, limiting block; 311, sliding groove; 400, mounting ring; 401, second spring; 402, limiting plate; 403, extrusion plate; 404, elliptical groove; 405, circular plate; 406, bidirectional screw; 407, arc groove; 408, knob. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-7 The present invention provides a technical solution as follows:

[0025] Example 1:

[0026] A high-precision screw grinding device includes an operating table 100. A groove 200 is formed on the operating table 100, and two threaded blocks 203 are slidably disposed within the groove 200. The two threaded blocks 203 are connected by an elastic component. First clamping components are provided on the two threaded blocks 203, and the screw is easily fixed by the cooperation of the two sets of first clamping components. A driving mechanism for moving one of the threaded blocks 203 is provided within the groove 200. A second clamping component is also installed on the operating table 100. The second clamping component includes a mounting ring 400 disposed on the operating table 100. Second springs 401 are symmetrically disposed on the inner wall of the mounting ring 400. A limiting plate 402 is connected to the end of each second spring 401. The limiting plate 402 is composed of a horizontal plate and an inclined plate. A heating plate is provided within the horizontal plate containing the limiting plate 402. A limiting mechanism for limiting the screw is provided within the mounting ring 400. A grinding device body 101 for grinding the screw is provided on the operating table 100.

[0027] The limiting mechanism includes two extrusion plates 403 slidably disposed within the mounting ring 400. The top ends of the two extrusion plates 403 are rotatably connected. An elliptical groove 404 is provided on the extrusion plate 403. A circular plate 405 is rotatably disposed within the elliptical groove 404. The mounting ring 400 is symmetrically provided with arc-shaped grooves 407. A bidirectional screw 406 is installed within the arc-shaped groove 407 and is threadedly connected to the circular plate 405. A knob 408 is provided at both ends of the bidirectional screw 406.

[0028] The elastic component includes a connecting sleeve 204 connected to one of the threaded blocks 203. A first spring 205 is installed inside the connecting sleeve 204. A connecting rod 206 is connected to the end of the first spring 205, and the end of the connecting rod 206 away from the first spring 205 is connected to the other threaded block 203.

[0029] The drive mechanism includes a first motor 202 disposed on one side of the operating table 100. The output end of the first motor 202 is connected to a threaded rod 201, and the threaded rod 201 is located in a groove 200. The threaded rod 201 is threadedly connected to one of the threaded blocks 203.

[0030] The first clamping assembly includes a mounting bracket 300 mounted on a threaded block 203. A mounting plate 301 is rotatably mounted on the mounting bracket 300. A mounting sleeve 302 is fixedly mounted on one end of the mounting plate 301, and an electric push rod 305 is fixedly mounted on the other end. An adjustment assembly is mounted on the end of the electric push rod 305.

[0031] The adjustment assembly includes a first mounting block 306 sleeved on the electric push rod 305, a second mounting block 307 mounted on the inner wall of the mounting sleeve 302, a plurality of first hinge rods 308 and second hinge rods 309 respectively hinged on the first mounting block 306 and the second mounting block 307, and each first hinge rod 308 and second hinge rod 309 is rotatably connected at the middle position, and the ends of the first hinge rod 308 and the second hinge rod 309 are connected to the limiting block 310. The mounting plate 301 has a plurality of sliding grooves 311 that cooperate with the limiting block 310. One of the mounting brackets 300 has a rotating mechanism mounted on one side.

[0032] The rotating mechanism includes a motor frame 303 mounted on one of the mounting brackets 300, a second motor 304 fixedly mounted on the motor frame 303, and the output end of the second motor 304 connected to an electric push rod 305.

[0033] Working principle: In use, firstly, the first set of clamping assemblies without the second motor 304 is moved. With the cooperation of the connecting sleeve 204, the first spring 205, and the connecting rod 206, one of the mounting brackets 300 moves backward. At this time, the large screw is installed on the mounting plate 301 and fixed by the first clamping assemblies. When the large screw is installed between the two sets of first clamping assemblies, it passes through the second mounting assembly. The second mounting assembly increases the stability of the large screw, preventing it from shifting during grinding. The large screw passes through the limiting plate 402 and extends backward. The second spring 401 acts as a guide... The large screw is clamped. Since the limiting plate 402 is designed to be assembled from a horizontal plate and an inclined plate, it is easy for the large screw to be inserted between the two limiting plates 402. The horizontal plate where the limiting plate 402 is located has an arc-shaped groove 407 on its opposite side to cooperate with the large screw. A heating plate is also installed inside. Since the large screw may crack due to the thermal stress generated by grinding, which affects its service life, the heating plate is used to make the surface temperature of the large screw rise evenly, reduce the thermal stress caused by temperature difference during grinding, prevent the surface of the large screw from cracking, and reduce the risk of cracking caused by excessive local temperature change during grinding.

[0034] Secondly, after the large screw is fitted onto the outer surface of the limiting block 310, the first mounting block 306 is moved forward by activating the electric push rod 305. Since multiple sets of first hinge rods 308 and second hinge rods 309 are rotatably connected, the first mounting block 306 moves forward while the first hinge rods 308 and second hinge rods 309 cause the limiting block 310 to expand outward, thereby fixing the large screw. This method can be adjusted according to different screws to adapt to screws of different sizes, increasing its flexibility. The clamping assembly can provide a stable clamping force, making it easy for the grinding device body 101 to stabilize the large screw when grinding it. Rotating the knob 408 drives the bidirectional screw 406 to rotate, thereby causing the two extrusion plates 403 to move relative to each other under the cooperation of the circular plate 405. This causes the tops of the two extrusion plates 403 to abut against the large screw, thereby limiting the large screw and increasing its stability.

[0035] Finally, the first motor 202 is started to drive the threaded rod 201 to rotate, thereby driving one of the threaded blocks 203 to move. Under the action of the elastic component, the other threaded block 203 is driven to move, so that the large screw clamped between the two sets of first clamping components moves forward, so that every part of the large screw is heated and polished in conjunction with the polishing device body 101 installed on the operating table 100.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A high-precision screw rod processing polishing device comprising an operating table (100), characterized in that: The operating table (100) is provided with a recess (200), two threaded blocks (203) are slidably arranged in the recess (200), and the two threaded blocks (203) are connected through an elastic assembly, first clamping assemblies are arranged on the two threaded blocks (203), and the two first clamping assemblies are matched to facilitate fixing of a screw rod, a driving mechanism for driving one of the threaded blocks (203) to move is arranged in the recess (200), and a second clamping assembly is further arranged on the operating table (100), the second clamping assembly comprises a mounting ring (400) arranged on the operating table (100), second springs (401) are symmetrically arranged on the inner wall of the mounting ring (400), the end portions of the second springs (401) are connected with limiting plates (402), the limiting plates (402) are composed of horizontal plates and inclined plates, a heating plate is arranged in the horizontal plate where the limiting plate (402) is located, a limiting mechanism for limiting the screw rod is arranged in the mounting ring (400), and a polishing device body (101) for polishing the screw rod is arranged on the operating table (100).

2. The high-precision polishing device for screw machining according to claim 1, characterized in that: The limiting mechanism comprises two extrusion plates (403) slidably arranged in the mounting ring (400), the top ends of the two extrusion plates (403) are rotatably connected, an oval groove (404) is arranged on the extrusion plate (403), a circular plate (405) is rotatably arranged in the oval groove (404), arc-shaped grooves (407) are symmetrically arranged in the mounting ring (400), a bidirectional screw rod (406) is arranged in the arc-shaped groove (407), and the bidirectional screw rod (406) is threadedly connected with the circular plate (405), knobs (408) are arranged at the two ends of the bidirectional screw rod (406).

3. The high-precision polishing device for screw machining according to claim 1, characterized in that: The elastic assembly comprises a connecting sleeve (204) connected with one of the threaded blocks (203), a first spring (205) is arranged in the connecting sleeve (204), the end portion of the first spring (205) is connected with a connecting rod (206), and the end of the connecting rod (206) away from the first spring (205) is connected with the other threaded block (203).

4. The high-precision polishing device for screw machining according to claim 1, characterized in that: The driving mechanism comprises a first motor (202) arranged on one side of the operating table (100), a threaded rod (201) is connected to the output end of the first motor (202), and the threaded rod (201) is arranged in the recess (200), and the threaded rod (201) is threadedly connected with one of the threaded blocks (203).

5. The high-precision polishing device for screw machining according to claim 1, characterized in that: The first clamping assembly comprises a mounting frame (300) mounted on the threaded block (203), an installation plate (301) is rotatably arranged on the mounting frame (300), a mounting sleeve (302) is fixedly arranged at one end of the installation plate (301), an electric push rod (305) is fixedly arranged at the other end of the installation plate (301), and an adjusting assembly is arranged at the end of the electric push rod (305).

6. The high-precision screw machining polishing device according to claim 5, characterized in that: The adjusting assembly comprises a first mounting block (306) sleeved on an electric push rod (305), a second mounting block (307) is mounted on the inner wall of the mounting sleeve (302), a plurality of first hinged rods (308) and second hinged rods (309) are respectively hinged on the first mounting block (306) and the second mounting block (307), the middle sections of each first hinged rod (308) and second hinged rod (309) are rotationally connected, the end portions of the first hinged rods (308) and the second hinged rods (309) are connected with limiting blocks (310), a plurality of sliding grooves (311) matched with the limiting blocks (310) are formed on the mounting plate (301), and one of the mounting racks (300) is provided with a rotating mechanism on one side.

7. The high-precision screw machining polishing device according to claim 6, characterized in that: The rotating mechanism comprises a motor rack (303) mounted on one of the mounting racks (300), a second motor (304) is fixedly arranged on the motor rack (303), and the output end of the second motor (304) is connected with the electric push rod (305).

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