High-precision graphite sealing jig processing fixture
Patent Information
- Application Number
- CN202522244657.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-23
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-10-23
AI Technical Summary
[0011]本实用新型的有益效果是：该高精度石墨密封治具的加工夹具，使用时，先根据所要加工的治具外径来选择合适的夹持机构，选择时，通过驱动电机带动丝杠转动，通过丝杠转动带动螺纹套移动，通过螺纹套带动第一支撑板、滑套、第二支撑板移动，从而带动多个夹持机构移动，当所需夹持机构移动至电动伸缩杆处时，第一半圆夹环上的检测板会被检测到，此时，指示灯亮起，提醒人们夹持机构已经与电动伸缩杆对齐，将驱动电机停止，然后，将治具放置到第一半圆夹环和第二半圆夹环之间，支撑挡边对治具进行初步支撑，然后，启动电动伸缩杆对第二半圆夹环进行推动，使得第二半圆夹环将治具夹紧到第一半圆夹环内即可。综上所述，本实用新型通过多组不同内径的夹持机构，结合由驱动电机、丝杠等构成的位置调节机构，可快速切换适配不同外径的石墨密封治具加工需求，提升加工适配性与便捷性。
Smart Images
Figure CN224809258U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fixture technology, and in particular to a machining fixture for a high-precision graphite sealing jig. Background Technology
[0002] Graphite sealing fixtures, with their excellent properties such as high temperature resistance, low expansion, corrosion resistance, and self-lubrication, are widely used in aerospace, semiconductor, and chemical industries where extremely high sealing precision is required. Their machining process places stringent demands on clamping accuracy, adaptability, and operational efficiency. However, existing fixtures for machining graphite sealing fixtures have significant shortcomings: most fixtures are only equipped with a single-specification clamping structure, making it difficult to adapt to the machining needs of graphite sealing fixtures with different outer diameters. Changing to dedicated fixtures is cumbersome, increasing equipment costs and significantly reducing machining efficiency. Therefore, there is an urgent need to develop a high-precision machining fixture for graphite sealing fixtures to overcome the deficiencies in current applications and meet current demands. Utility Model Content
[0003] The purpose of this invention is to provide a high-precision graphite sealing fixture for machining, so as to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A high-precision graphite sealing fixture machining fixture includes a worktable, a clamping mechanism, an electric telescopic rod, and a position adjustment mechanism. Multiple clamping mechanisms, each with a different inner diameter, are included. The electric telescopic rod is fixedly mounted on the worktable and faces one of the clamping mechanisms, driving the clamping mechanism to perform clamping. The position adjustment mechanism is mounted on the worktable, and all clamping mechanisms are connected to it. The position adjustment mechanism includes a drive motor, a lead screw, a threaded sleeve, a first support plate, a sliding sleeve, a second support plate, and a crossbar. The drive motor is fixed to the worktable, and the lead screw is rotatably connected to the worktable. The output shaft of the drive motor passes through… The system is connected to a lead screw via a coupling. A threaded sleeve is installed on the lead screw. The first support plate is fixed to the threaded sleeve. The sliding sleeve is fixedly connected to the first support plate and is slidably mounted on a crossbar. The crossbar is fixed to the worktable. The second support plate is fixedly mounted on the sliding sleeve. The clamping mechanism includes: a first semicircular clamping ring, a second semicircular clamping ring, a support flange, a guide rod, and a spring. The bottom of both the first and second semicircular clamping rings is fixed with a support flange. The first semicircular clamping ring is fixed to the first support plate. Two guide rods are fixed to the lower side of the second semicircular clamping ring. The guide rods pass through the second support plate and are slidably connected to it. A spring is installed on the outer side of each guide rod.
[0006] Preferably, one end of the spring is fixed to the guide rod and the other end is fixed to the second support plate.
[0007] Preferably, the first support plate and the second support plate are arranged in parallel.
[0008] Preferably, a photoelectric sensor is fixedly installed on the workbench, and the photoelectric sensor is positioned towards the direction of the electric telescopic rod.
[0009] Preferably, each of the first semicircular clamps is fixed with a detection plate, which is used for detection by a photoelectric sensor.
[0010] Preferably, a PLC controller is fixedly installed on one side of the workbench, and the electric telescopic rod, photoelectric sensor, drive motor and indicator light are electrically connected to the PLC controller.
[0011] The beneficial effects of this utility model are as follows: When using this high-precision graphite sealing fixture, the appropriate clamping mechanism is first selected according to the outer diameter of the fixture to be processed. During selection, the drive motor drives the lead screw to rotate, which in turn drives the threaded sleeve to move. The threaded sleeve then drives the first support plate, the sliding sleeve, and the second support plate to move, thereby moving multiple clamping mechanisms. When the required clamping mechanism moves to the electric telescopic rod, the detection plate on the first semicircular clamping ring will be detected. At this time, the indicator light will illuminate, reminding people that the clamping mechanism has been aligned with the electric telescopic rod. The drive motor is then stopped. The fixture is then placed between the first and second semicircular clamping rings, and the support edge provides initial support for the fixture. Then, the electric telescopic rod is started to push the second semicircular clamping ring, so that the second semicircular clamping ring clamps the fixture into the first semicircular clamping ring. In summary, this utility model, through multiple clamping mechanisms with different inner diameters, combined with a position adjustment mechanism consisting of a drive motor, lead screw, etc., can quickly switch to adapt to the processing requirements of graphite sealing fixtures with different outer diameters, thereby improving processing adaptability and convenience. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0013] Figure 2 This is a schematic diagram of the usage state of this utility model.
[0014] Figure 3 This is a partial structural diagram of the present invention. Figure 1 .
[0015] Figure 4 This is a partial structural diagram of the present invention. Figure 2 .
[0016] Figure 5This is a partial structural diagram of the present invention. Figure 3 .
[0017] Legend:
[0018] 1. Workbench; 2. Clamping mechanism; 201. First semi-circular clamping ring; 2011. Detection plate; 202. Second semi-circular clamping ring; 203. Supporting flange; 204. Guide rod; 205. Spring; 3. Electric telescopic rod; 4. Photoelectric sensor; 5. Position adjustment mechanism; 501. Drive motor; 502. Lead screw; 503. Threaded sleeve; 504. First support plate; 505. Sliding sleeve; 506. Second support plate; 507. Crossbar; 6. Indicator light; 7. PLC controller. Detailed Implementation
[0019] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0020] Specific implementation examples are given below.
[0021] See Figures 1-5 In this embodiment of the present invention, a high-precision graphite sealing fixture processing fixture includes a worktable 1, a clamping mechanism 2, an electric telescopic rod 3, and a position adjustment mechanism 5. The clamping mechanism 2 is multiplied, and each clamping mechanism 2 has a different inner diameter to clamp fixture materials of different diameters. The electric telescopic rod 3 is fixedly installed on the worktable 1 and faces one of the clamping mechanisms 2. The electric telescopic rod 3 drives the clamping mechanism 2 to clamp. The position adjustment mechanism 5 is installed on the worktable 1, and all clamping mechanisms 2 are connected to the position adjustment mechanism 5. The position adjustment mechanism 5 is used to adjust the position of the multiple clamping mechanisms 2. In use, the position adjustment mechanism 5 moves the multiple clamping mechanisms 2, causing multiple clamping mechanisms 2 with different functional diameters to extend to the electric telescopic rod 3, so as to clamp fixtures of different diameters.
[0022] The position adjustment mechanism 5 includes: a drive motor 501, a lead screw 502, a threaded sleeve 503, a first support plate 504, a sliding sleeve 505, a second support plate 506, and a crossbar 507. The drive motor 501 is fixed on the worktable 1, the lead screw 502 is rotatably connected to the worktable 1, the output shaft of the drive motor 501 is connected to the lead screw 502 through a coupling, the threaded sleeve 503 is installed on the lead screw 502, the first support plate 504 is fixed to the threaded sleeve 503, the sliding sleeve 505 is fixedly connected to the first support plate 504, the sliding sleeve 505 is slidably installed on the crossbar 507, the crossbar 507 is fixed on the worktable 1, the second support plate 506 is fixedly installed on the sliding sleeve 505, and the first support plate 504 and the second support plate 506 are arranged in parallel.
[0023] The clamping mechanism 2 includes: a first semicircular clamping ring 201, a second semicircular clamping ring 202, a supporting edge 203, a guide rod 204, and a spring 205. The first semicircular clamping ring 201 and the second semicircular clamping ring 202 are arranged opposite to each other. The bottom of the first semicircular clamping ring 201 and the second semicircular clamping ring 202 are both fixed with a supporting edge 203, which serves to support the fixture. The first semicircular clamping ring 201 is fixed to the first support plate 504. Two guide rods 204 are fixed to the lower side of the second semicircular clamping ring 202. The guide rods 204 pass through the second support plate 506 and are slidably connected to it. A spring 205 is installed on the outer side of each guide rod 204. One end of the spring 205 is fixed to the guide rod 204 and the other end is fixed to the second support plate 506.
[0024] A photoelectric sensor 4 is fixedly installed on the workbench 1, and the photoelectric sensor 4 is set in the direction of the electric telescopic rod 3. A detection plate 2011 is fixed on each of the first semicircular clamping rings 201. The detection plate 2011 is used to be detected by the photoelectric sensor 4. An indicator light 6 is fixedly installed on the workbench 1. When a clamping mechanism 2 moves to the electric telescopic rod 3, the detection plate 2011 on the first semicircular clamping ring 201 will be detected. At this time, the indicator light 6 will light up to remind people that the clamping mechanism 2 has been aligned with the electric telescopic rod 3.
[0025] A PLC controller 7 is fixedly installed on one side of the workbench 1. The PLC controller 7 is equipped with operation buttons for human operation.
[0026] The electric telescopic rod 3, photoelectric sensor 4, drive motor 501 and indicator light 6 are electrically connected to the PLC controller 7 so that the PLC controller 7 can perform electrical system control.
[0027] Working principle: When using this high-precision graphite sealing fixture, the appropriate clamping mechanism 2 is selected based on the outer diameter of the fixture to be machined. During selection, the drive motor 501 drives the lead screw 502 to rotate, which in turn moves the threaded sleeve 503. The threaded sleeve 503 then moves the first support plate 504, the sliding sleeve 505, and the second support plate 506, thereby moving multiple clamping mechanisms 2. When the required clamping mechanism 2 moves to the electric telescopic rod 3, the first semicircle... The detection plate 2011 on the clamping ring 201 will be detected. At this time, the indicator light 6 will light up, reminding people that the clamping mechanism 2 has been aligned with the electric telescopic rod 3. Stop the drive motor 501, and then place the fixture between the first semicircular clamping ring 201 and the second semicircular clamping ring 202. The support edge 203 will provide initial support for the fixture. Then, start the electric telescopic rod 3 to push the second semicircular clamping ring 202 so that the second semicircular clamping ring 202 clamps the fixture into the first semicircular clamping ring 201.
[0028] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A machining fixture for a high-precision graphite sealing jig, characterized in that, The system includes a worktable (1), a clamping mechanism (2), an electric telescopic rod (3), and a position adjustment mechanism (5). There are multiple clamping mechanisms (2), each with a different inner diameter. The electric telescopic rod (3) is fixedly mounted on the worktable (1) and faces one of the clamping mechanisms (2). The electric telescopic rod (3) drives the clamping mechanism (2) to clamp. The position adjustment mechanism (5) is mounted on the worktable (1). All the clamping mechanisms (2) are connected to the position adjustment mechanism (5). 5) Connected, the position adjustment mechanism (5) includes: a drive motor (501), a lead screw (502), a threaded sleeve (503), a first support plate (504), a sliding sleeve (505), a second support plate (506), and a crossbar (507). The drive motor (501) is fixed on the worktable (1), and the lead screw (502) is rotatably connected to the worktable (1). The output shaft of the drive motor (501) is connected to the lead screw (502) through a coupling. A threaded rod is installed on the lead screw (502). The sleeve (503), the first support plate (504) is fixed to the threaded sleeve (503), the sliding sleeve (505) is fixedly connected to the first support plate (504), the sliding sleeve (505) is slidably mounted on the crossbar (507), the crossbar (507) is fixed on the worktable (1), the second support plate (506) is fixedly mounted on the sliding sleeve (505), the clamping mechanism (2) includes: a first semicircular clamping ring (201), a second semicircular clamping ring (202), a support stop (203), and a guide. The rod (204) and spring (205) are provided. The bottom of the first semicircular clamp (201) and the second semicircular clamp (202) are both fixed with supporting flanges (203). The first semicircular clamp (201) is fixed to the first support plate (504). Two guide rods (204) are fixed on the lower side of the second semicircular clamp (202). The guide rods (204) pass through the second support plate (506) and are slidably connected to it. A spring (205) is installed on the outer side of each guide rod (204).
2. The machining fixture for the high-precision graphite sealing jig according to claim 1, characterized in that, One end of the spring (205) is fixed to the guide rod (204), and the other end is fixed to the second support plate (506).
3. The machining fixture for the high-precision graphite sealing jig according to claim 1, characterized in that, The first support plate (504) and the second support plate (506) are arranged in parallel.
4. The machining fixture for the high-precision graphite sealing jig according to claim 1, characterized in that, A photoelectric sensor (4) is fixedly installed on the workbench (1), and the photoelectric sensor (4) is set in the direction of the electric telescopic rod (3).
5. The machining fixture for the high-precision graphite sealing jig according to claim 1, characterized in that, Each of the first semicircular clamps (201) is fixed with a detection plate (2011), which is used to be detected by the photoelectric sensor (4).
6. The machining fixture for the high-precision graphite sealing jig according to claim 4, characterized in that, A PLC controller (7) is fixedly installed on one side of the workbench (1), and the electric telescopic rod (3), photoelectric sensor (4), drive motor (501) and indicator light (6) are electrically connected to the PLC controller (7).