Graphite tooling fixture

Abstract

The utility model belongs to graphite tool fixture technical field especially is a graphite tool fixture, including base, the upper surface fixed connection of base has workstation, the both sides of workstation are all set up with the sliding slot, the upper surface middle part fixed connection of base has fixed base, the upper surface both sides of fixed base are all fixed connection with slide rail, both sides of two slide rails are all slidingly connected with the sliding block, the upper surface fixed connection of two groups of sliding blocks has the connecting plate, one side of two connecting plates is all fixed connection with the fixed frame. The utility model discloses through drive electric telescopic link drive fixed plate sliding, make it pull the connecting plate and make the sliding block slide on the slide rail, and two connecting plates cooperate with the meshing mode of bilateral rack one and central fixed gear, can drive two connecting plates to move inwards simultaneously, realize the symmetrical clamping to work piece, avoid the stress uneven problem that partial clamping brings, improve the positioning accuracy, improve the clamping stability in the processing process.

Description

Technical Field

[0001] This utility model relates to the field of graphite tooling fixture technology, specifically a graphite tooling fixture. Background Technology

[0002] With the continuous development of industrial technology, graphite materials have been widely used in many high-precision manufacturing fields such as aerospace, electronics, and metallurgy due to their excellent high-temperature resistance, electrical conductivity, and good machinability. In the processing of graphite parts, in order to ensure processing accuracy and efficiency, specialized tooling fixtures are required to effectively position and securely clamp the graphite material.

[0003] However, existing graphite tooling fixtures have a relatively simple clamping structure, making it difficult to adapt to graphite workpieces of different specifications and resulting in poor versatility. Furthermore, the rigid clamping of the workpiece during the clamping process can easily cause damage or deformation to the graphite material, affecting the processing quality. During high-speed processing, vibration can easily cause the workpiece to shift or break. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a graphite tooling fixture that solves the problems of existing graphite tooling fixtures having a relatively simple clamping structure, making it difficult to adapt to graphite workpieces of different specifications and resulting in poor versatility; furthermore, the rigid clamping of the workpiece during the clamping process can easily cause damage or deformation to the graphite material, affecting the processing quality; and the workpiece is prone to displacement or breakage due to vibration during high-speed processing.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a graphite tooling fixture, comprising a base, a worktable fixedly connected to the upper surface of the base, sliding grooves on both sides of the worktable, a fixed seat fixedly connected to the middle of the upper surface of the base, slide rails fixedly connected to both sides of the upper surface of the fixed seat, sliders slidably connected to both sides of the two slide rails, connecting plates fixedly connected to the upper surfaces of the two sets of sliders, a fixed frame fixedly connected to one side of the two connecting plates, a clamping plate fixedly connected to one side of the fixed frame, a rack fixedly connected to one side of the lower surface of the two connecting plates, a fixed gear rotatably connected to the middle of the upper surface of the fixed seat, the two racks meshing on both sides of the fixed gear, an electric telescopic rod fixedly connected to one side of the lower surface of the fixed seat, a fixed plate fixedly connected to the output end of the electric telescopic rod, the upper surface of the fixed plate fixedly connected to one side of the lower surface of one of the connecting plates, a through groove opened on one side of the surface of the fixed seat, and the outer wall of the fixed plate slidably connected to the inner wall of the through groove.

[0006] As a preferred embodiment of this utility model, a buffer plate is provided in the middle of the upper surface of the workbench, and a buffer groove is formed in the middle of the upper surface of the workbench. The outer wall of the buffer plate is slidably connected to the inner wall of the buffer groove. Buffer telescopic rods are fixedly connected to the four corners of the lower surface of the buffer plate. The bottom ends of the buffer telescopic rods are fixedly connected to the four corners of the inner lower surface of the buffer groove. A buffer assembly is installed on the inner lower surface of the buffer groove, and the buffer assembly is connected to the lower surface of the buffer plate.

[0007] As a preferred embodiment of this utility model, the buffer assembly includes a fixed cylinder, a first support frame, and a second support frame. The bottom end of the fixed cylinder is fixedly connected to the middle of the buffer groove. The first support frame is fixedly connected to both sides of the middle of the buffer groove. The second support frame is fixedly connected to both sides inside the buffer groove. A sliding rod is slidably connected to the inner wall of the fixed cylinder. The top end of the sliding rod is fixedly connected to the middle of the lower surface of the buffer plate. A spring is fixedly connected to the adjacent surface of the sliding rod and the inside of the fixed cylinder. Grooves are formed on both sides of the outer wall of the sliding rod. A rack is fixedly connected to the inner wall of each groove. The upper part of the two first support frames... Each component is rotatably connected to a connecting gear, which meshes with a rack. A connecting frame is fixedly connected to the outer wall of each connecting gear. A roller is rotatably connected to the upper part of each connecting frame, and the outer wall of the roller is in contact with the lower surface of the buffer plate. A pull plate is rotatably connected to the upper middle part of each connecting frame. A connecting block is slidably connected to the outer wall of the second support frame. The lower part of the pull plate is rotatably connected to the outer wall of the connecting block. Springs are fitted on both sides of the second support frame. The adjacent ends of two springs are fixedly connected to the outer walls of the connecting block, and the distant ends of two springs are fixedly connected to the upper sides of the second support frame.

[0008] As a preferred embodiment of this utility model, a fixing rod is fixedly connected to both sides of the upper surface of the fixing base, and a guide wheel is rotatably connected to the outer wall of each fixing rod, with the outer wall of the guide wheel fitting against one side of the outer wall of the rack.

[0009] As a preferred embodiment of this utility model, rubber pads are fixedly connected to adjacent surfaces of the clamping plate.

[0010] As a preferred technical solution of this utility model, limit plates are fixedly connected to both sides of the outer wall of the fixed base.

[0011] Compared with the prior art, this utility model provides a graphite tooling fixture, which has the following beneficial effects:

[0012] 1. This graphite tooling fixture drives an electric telescopic rod to slide a fixed plate, which in turn pulls a connecting plate to make a slider slide on a slide rail. The two connecting plates, in conjunction with the meshing of the double-sided racks and the central fixed gear, can drive the two connecting plates to move inward simultaneously, achieving symmetrical clamping of the workpiece. This avoids uneven force caused by biased clamping, improves positioning accuracy, and enhances clamping stability during processing.

[0013] 2. This graphite tooling fixture, during processing, absorbs vertical impacts through a buffer telescopic rod if subjected to external vibration interference. The sliding rod slides within the fixed cylinder, and a spring absorbs the impact force from above. Simultaneously, a connecting gear meshes with a rack, and rollers provide close support to the lower surface of the buffer plate, ensuring a stable buffer state throughout the stress process. The support frame is connected to pull plates on both sides via springs, further enhancing the structure's elastic control capability. This effectively reduces minor displacements or damage to the workpiece caused by impacts from high-speed machine tool movement or changes in cutting force, ensuring smooth movement and further improving the stability and reliability of the fixture's clamping action. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is a side view of the present invention;

[0016] Figure 3 This is a schematic diagram of the clamping structure of this utility model;

[0017] Figure 4 This is an unfolded view of the clamping structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the buffer component of this utility model;

[0019] Figure 6 This is an exploded view of the buffer component of this utility model.

[0020] In the diagram: 1. Base; 2. Workbench; 3. Slide groove; 4. Fixed seat; 5. Slide rail; 6. Slider; 7. Connecting plate; 8. Fixed frame; 9. Clamping plate; 10. Rack one; 11. Fixed gear; 12. Fixed plate; 13. Electric telescopic rod; 14. Through groove; 15. Buffer plate; 16. Buffer groove; 17. Buffer telescopic rod; 18. Buffer assembly; 1801. Fixed cylinder; 1802. Slide rod; 1803. Spring one; 1804. Groove; 1805. Rack two; 1806. Support frame one; 1807. Connecting gear; 1808. Connecting frame; 1809. Roller; 1810. Pull plate; 1811. Support frame two; 1812. Connecting block; 1813. Spring two; 19. Fixed rod; 20. Guide wheel; 21. Rubber pad; 22. Limiting plate. Detailed Implementation

[0021] 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.

[0022] Example 1

[0023] Please see Figure 1-6 In this embodiment: a graphite tooling fixture includes a base 1, a worktable 2 fixedly connected to the upper surface of the base 1, slide grooves 3 on both sides of the worktable 2, a fixed seat 4 fixedly connected to the middle of the upper surface of the base 1, slide rails 5 fixedly connected to both sides of the upper surface of the fixed seat 4, sliders 6 slidably connected to both sides of the two slide rails 5, connecting plates 7 fixedly connected to the upper surfaces of the two sets of sliders 6, a fixing frame 8 fixedly connected to one side of each of the two connecting plates 7, and a clamping plate 9 fixedly connected to one side of each fixing frame 8. A rack 10 is fixedly connected to one side of the lower surface of plate 7. A fixed gear 11 is rotatably connected to the middle of the upper surface of the fixed seat 4. Two racks 10 mesh on both sides of the fixed gear 11. An electric telescopic rod 13 is fixedly connected to one side of the lower surface of the fixed seat 4. A fixed plate 12 is fixedly connected to the output end of the electric telescopic rod 13. The upper surface of the fixed plate 12 is fixedly connected to one side of the lower surface of one of the connecting plates 7. A through groove 14 is opened on one side of the surface of the fixed seat 4. The outer wall of the fixed plate 12 is slidably connected to the inner wall of the through groove 14.

[0024] In this embodiment, when a graphite workpiece needs to be clamped, the electric telescopic rod 13 drives the fixed plate 12 to slide in the through groove 14. The fixed plate 12 drives one of the connecting plates 7 to move, so that the slider 6 slides on the slide rail 5. When the connecting plate 7 moves, it drives the rack 10 to move synchronously, thereby causing the fixed gear 11 to rotate and drive the racks 10 meshing on both sides to move symmetrically. This allows the clamping plates 9 on the two connecting plates 7 to tighten towards the middle or open outward, thus achieving the action of clamping or releasing the workpiece. Since the clamping direction is a symmetrical sliding structure, it can ensure that the workpiece is subjected to uniform force during the clamping process, improve the clamping accuracy, and avoid displacement or damage caused by biased clamping.

[0025] Furthermore, a buffer plate 15 is provided in the middle of the upper surface of the workbench 2, and a buffer groove 16 is provided in the middle of the upper surface of the workbench 2. The outer wall of the buffer plate 15 is slidably connected to the inner wall of the buffer groove 16. Buffer telescopic rods 17 are fixedly connected to the four corners of the lower surface of the buffer plate 15. The bottom ends of the buffer telescopic rods 17 are fixedly connected to the four corners of the inner lower surface of the buffer groove 16. A buffer assembly 18 is installed on the inner lower surface of the buffer groove 16. The buffer assembly 18 is connected to the lower surface of the buffer plate 15.

[0026] During the processing, the external vibration or impact on the workpiece is transmitted to the buffer assembly 18 through the buffer plate 15 in the center of the worktable 2. The buffer plate 15 slides in the buffer groove 16 and is vertically flexibly supported by the buffer telescopic rods 17 set at the four corners. Together with the buffer assembly 18, it can effectively reduce the small displacement or damage to the workpiece caused by the impact of the high speed of the machine tool or the change of cutting force.

[0027] Furthermore, the buffer assembly 18 includes a fixed cylinder 1801, a first support frame 1806, and a second support frame 1811. The bottom end of the fixed cylinder 1801 is fixedly connected to the middle of the buffer groove 16. The first support frame 1806 is fixedly connected to both sides of the middle of the buffer groove 16. The second support frame 1811 is fixedly connected to both sides inside the buffer groove 16. A sliding rod 1802 is slidably connected to the inner wall of the fixed cylinder 1801. The top end of the sliding rod 1802 is fixedly connected to the middle of the lower surface of the buffer plate 15. A spring 1803 is fixedly connected to the adjacent surface of the sliding rod 1802 and the inside of the fixed cylinder 1801. Grooves 1804 are provided on both sides of the outer wall of the sliding rod 1802. A rack 1805 is fixedly connected to the inner wall of each groove 1804. The upper parts of the two first support frames 1806 are rotatably connected to a connecting rod. A connecting gear 1807 meshes with a rack 1805. A connecting frame 1808 is fixedly connected to the outer wall of the connecting gear 1807. A roller 1809 is rotatably connected to the upper part of the connecting frame 1808. The outer wall of the roller 1809 is in contact with the lower surface of the buffer plate 15. A pull plate 1810 is rotatably connected to the upper middle part of the connecting frame 1808. A connecting block 1812 is slidably connected to the outer wall of the support frame 1811. The lower part of the pull plate 1810 is rotatably connected to the outer wall of the connecting block 1812. Springs 1813 are sleeved on both sides of the support frame 1811. The adjacent ends of the two springs 1813 are fixedly connected to the two sides of the outer wall of the connecting block 1812. The far ends of the two springs 1813 are fixedly connected to the upper two sides of the support frame 1811.

[0028] In this structure, the slide rod 1802 slides up and down within the fixed cylinder 1801, and the spring 1803 absorbs the impact force from above. At the same time, the connecting gear 1807 meshes with the rack 1805, and the roller 1809 provides close support to the lower surface of the buffer plate 15, ensuring that the force process is always in a stable buffer state. When the slide rod 1802 slides within the fixed cylinder 1801, the rack 1805 drives the connecting gear 1807 to rotate, which in turn drives the connecting frame 1808 to rotate. This allows the pull plate 1810 to drive the connecting block 1812 to slide on the support frame 1811. With the cooperation of the spring 1813, the elastic control capability of the structure is further enhanced, thereby effectively reducing the minor displacement or damage to the workpiece caused by the impact of high-speed machine tool movement or changes in cutting force.

[0029] Preferably, fixing rods 19 are fixedly connected to both sides of the upper surface of the fixing base 4, and guide wheels 20 are rotatably connected to the outer walls of the fixing rods 19. The outer walls of the guide wheels 20 are in contact with one side of the outer wall of the rack 10.

[0030] The sliding contact between rack 10 and guide wheel 20 ensures that rack 10 is oriented correctly during movement, preventing clamping position deviation caused by lateral force.

[0031] Preferably, rubber pads 21 are fixedly connected to adjacent surfaces of the clamping plate 9;

[0032] The contact pressure during the clamping process is absorbed and buffered by the rubber pad 21 installed on the surface of the clamping plate 9, which can significantly reduce the impact on the surface of the graphite workpiece and avoid problems such as cracks or surface chipping caused by instantaneous hard contact.

[0033] Preferably, limit plates 22 are fixedly connected to both sides of the outer wall of the fixed base 4;

[0034] The limiting plate 22 is designed to prevent the slider 6 from exceeding the controllable range, thereby improving safety and structural stability.

[0035] The working principle and usage process of this utility model are as follows: When a graphite workpiece needs to be clamped, the electric telescopic rod 13 drives the fixed plate 12 to slide within the through groove 14. The fixed plate 12 drives one of the connecting plates 7 to move, causing the slider 6 to slide on the slide rail 5. When the connecting plate 7 moves, it drives the rack 10 to move synchronously, thereby causing the fixed gear 11 to rotate and drive the meshing racks 10 on both sides to move symmetrically. This allows the clamping plates 9 on the two connecting plates 7 to tighten towards the middle or open outward, thus achieving the action of clamping or releasing the workpiece. Since the clamping direction is a symmetrical sliding structure, it can ensure that the workpiece is subjected to uniform force during the clamping process, improve the clamping accuracy, and avoid displacement or damage caused by biased clamping. During the processing, the external vibration or impact on the workpiece is transmitted to the buffer assembly 18 through the buffer plate 15 in the center of the worktable 2, and the buffer plate 15 slides in the buffer groove 1. In section 6, vertical flexible support is provided by the buffer telescopic rods 17 set at the four corners. In conjunction with the buffer assembly 18, the slide rod 1802 slides up and down in the fixed cylinder 1801. The spring 1803 absorbs the impact force from above. At the same time, the connecting gear 1807 meshes with the rack 1805, and the roller 1809 provides close support to the lower surface of the buffer plate 15, so that the force process is always in a stable buffer state. When the slide rod 1802 slides in the fixed cylinder 1801, the rack 1805 drives the connecting gear 1807 to rotate, which in turn drives the connecting frame 1808 to rotate. This allows the pull plate 1810 to drive the connecting block 1812 to slide on the support frame 1811. With the cooperation of the spring 1813, the elastic control capability of the structure is further enhanced, thereby effectively reducing the small displacement or damage to the workpiece caused by the impact of high-speed machine tool movement or changes in cutting force.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A graphite tooling fixture, comprising a base (1), characterized in that: A workbench (2) is fixedly connected to the upper surface of the base (1). Slide grooves (3) are provided on both sides of the workbench (2). A fixed seat (4) is fixedly connected to the middle of the upper surface of the base (1). Slide rails (5) are fixedly connected to both sides of the upper surface of the fixed seat (4). Slider blocks (6) are slidably connected to both sides of the two slide rails (5). Connecting plates (7) are fixedly connected to the upper surfaces of the two sets of sliders (6). A fixing frame (8) is fixedly connected to one side of the two connecting plates (7). A clamping plate (9) is fixedly connected to one side of the fixing frame (8). A clamping plate (9) is fixedly connected to one side of the lower surface of the two connecting plates (7). Each is fixedly connected to a rack (10). A fixed gear (11) is rotatably connected to the middle of the upper surface of the fixed seat (4). The two racks (10) mesh on both sides of the fixed gear (11). An electric telescopic rod (13) is fixedly connected to one side of the lower surface of the fixed seat (4). A fixed plate (12) is fixedly connected to the output end of the electric telescopic rod (13). The upper surface of the fixed plate (12) is fixedly connected to one side of the lower surface of one of the connecting plates (7). A through groove (14) is opened on one side of the surface of the fixed seat (4). The outer wall of the fixed plate (12) is slidably connected to the inner wall of the through groove (14).

2. The graphite tooling fixture according to claim 1, characterized in that: A buffer plate (15) is provided in the middle of the upper surface of the workbench (2). A buffer groove (16) is provided in the middle of the upper surface of the workbench (2). The outer wall of the buffer plate (15) is slidably connected to the inner wall of the buffer groove (16). Buffer telescopic rods (17) are fixedly connected to the four corners of the lower surface of the buffer plate (15). The bottom end of the buffer telescopic rod (17) is fixedly connected to the four corners of the inner lower surface of the buffer groove (16). A buffer assembly (18) is installed on the inner lower surface of the buffer groove (16). The buffer assembly (18) is connected to the lower surface of the buffer plate (15).

3. A graphite tooling fixture according to claim 2, characterized in that: The buffer assembly (18) includes a fixed cylinder (1801), a first support frame (1806), and a second support frame (1811). The bottom end of the fixed cylinder (1801) is fixedly connected to the middle of the buffer groove (16). The first support frame (1806) is fixedly connected to both sides of the middle of the buffer groove (16). The second support frame (1811) is fixedly connected to both sides inside the buffer groove (16). A sliding rod (18) is slidably connected to the inner wall of the fixed cylinder (1801). 02), the top end of the slide rod (1802) is fixedly connected to the middle of the lower surface of the buffer plate (15), and a spring (1803) is fixedly connected to the adjacent surface of the slide rod (1802) and the inside of the fixed cylinder (1801). Grooves (1804) are provided on both sides of the outer wall of the slide rod (1802), and racks (1805) are fixedly connected to the inner wall of the grooves (1804). The upper parts of the two support frames (1806) are rotatably connected to connecting Gear (1807), the connecting gear (1807) meshes with rack two (1805), the outer wall of the connecting gear (1807) is fixedly connected to the connecting frame (1808), the upper part of the connecting frame (1808) is rotatably connected to the roller (1809), the outer wall of the roller (1809) is in contact with the lower surface of the buffer plate (15), the middle and upper part of the connecting frame (1808) is rotatably connected to the pull plate (1810), the support frame two A connecting block (1812) is slidably connected to the outer wall of (1811). The lower part of the pull plate (1810) is rotatably connected to the outer wall of the connecting block (1812). Springs (1813) are sleeved on both sides of the support frame (1811). The adjacent ends of the two springs (1813) are fixedly connected to the two sides of the outer wall of the connecting block (1812), and the far ends of the two springs (1813) are fixedly connected to the upper two sides of the support frame (1811).

4. A graphite tooling fixture according to claim 1, characterized in that: The upper surface of the fixed base (4) is fixedly connected to both sides of the fixed rod (19), and the outer wall of the fixed rod (19) is rotatably connected to the guide wheel (20). The outer wall of the guide wheel (20) is in contact with one side of the outer wall of the rack (10).

5. A graphite tooling fixture according to claim 1, characterized in that: Rubber pads (21) are fixedly connected to the adjacent surfaces of the clamping plate (9).

6. A graphite tooling fixture according to claim 1, characterized in that: Limiting plates (22) are fixedly connected to both sides of the outer wall of the fixed base (4).

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