Centering and aligning device of graphite electrode machining lathe

Abstract

The utility model discloses a centering and aligning device of a graphite electrode machining lathe. The centering and aligning device comprises a rack, the tops of the supporting legs are fixedly connected with the bottom of the rack; the centering and aligning device of the graphite electrode machining lathe further comprises a fixing mechanism used for fixing the graphite electrode, and the centering and aligning device of the graphite electrode machining lathe relates to the technical field of centering and aligning. According to the device, the fixing mechanism is arranged, during fixing, the graphite electrode is located on the surface of the bearing plate, at the moment, the output end of the hydraulic telescopic rod drives the connecting frame to move downwards, and at the moment, the four clamping assemblies synchronously contract inwards, so that the graphite electrode can be automatically adjusted to the center position of the bearing plate when being clamped; when the surface of the clamping block is in contact with the edge of the graphite electrode, the limiting rod slides along the inner wall of the fixing block, and at the moment, the extension spring is stressed and stretched, so that the clamping force of the clamping block can be buffered, and the graphite electrode is prevented from being damaged due to too fast operation of the clamping block.

Description

Technical Field

[0001] The utility model relates to the technical field of centering and alignment, and particularly relates to a centering and alignment device for a graphite electrode processing lathe. Background Art

[0002] Graphite is a common non-metallic material, which is black, has high and low temperature resistance, excellent electrical and thermal conductivity, excellent lubricity and stable chemical properties; it has good electrical conductivity and can be used as an electrode in electrical discharge machining. Compared with traditional copper electrodes, graphite has many advantages such as high temperature resistance, small discharge consumption, and small thermal deformation. It shows better adaptability in the processing of fine and complex parts and large-size electrodes, and has gradually replaced copper electrodes as the mainstream of electrical discharge machining electrodes.

[0003] In the prior art, during the processing of graphite electrodes, the centering and alignment accuracy of the lathe is crucial for the processing quality and efficiency. However, traditional centering and alignment methods often rely on manual operation, which is not only time-consuming and laborious, but also difficult to guarantee the accuracy. Therefore, an efficient and accurate centering and alignment device is needed to improve the processing quality and efficiency. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the technical solution adopted by the utility model to solve its technical problems is: a centering and alignment device for a graphite electrode processing lathe, comprising:

[0005] A frame;

[0006] Support feet, the top of the support feet is fixedly connected to the bottom of the frame;

[0007] This centering and alignment device for a graphite electrode processing lathe further comprises:

[0008] A fixing mechanism for fixing the graphite electrode, the outer wall of the fixing mechanism is fixedly connected to the inner wall of the frame;

[0009] The fixing mechanism includes a workbench, a material bearing plate is fixedly connected to the top of the workbench, clamping assemblies are annularly arranged on the outside of the material bearing plate, a hydraulic telescopic rod is arranged on the outside of the clamping assemblies, the output end of the hydraulic telescopic rod is fixedly connected to a connecting frame, the top of the connecting frame is rotatably connected to a movable rod, the top end of the movable rod is rotatably connected to a clamping assembly, and a shielding assembly is fixedly connected to the outer wall of the clamping assembly. The output end of the hydraulic telescopic rod drives the connecting frame to move downward. While moving, the connecting frame drives the clamping assembly to slide along the surface of the workbench through the movable rod. At this time, the four clamping assemblies contract inward synchronously.

[0010] Preferably, the outer wall of the clamping assembly is slidably connected to the inner wall of the workbench, the inner wall of the workbench is fixedly connected to the outer wall of the shielding assembly, the bottom of the workbench is fixedly connected to the top end of the hydraulic expansion rod, and the outer wall of the workbench is fixedly connected to the inner wall of the frame. When the four clamping assemblies simultaneously and equally speedily contract inward, when the graphite electrode is clamped, it can be automatically adjusted to the central position of the material receiving plate.

[0011] Preferably, the clamping assembly includes an I-shaped block. A fixed block is fixedly connected to the top of the I-shaped block. A limiting rod is slidably connected to the inner wall of the fixed block. One end of the limiting rod is fixedly connected to a clamping block. The other end of the limiting rod is fixedly connected to a movable plate. A tension spring is fixedly connected to the outer wall of the movable plate. When the surface of the clamping block contacts the edge of the graphite electrode, the limiting rod slides along the inner wall of the fixed block, and at this time, the tension spring is stretched by force.

[0012] Preferably, the inner wall of the fixed block contacts the outer wall of the movable plate. The end of the tension spring away from the movable plate is fixedly connected to the inner wall of the fixed block. The outer wall of the I-shaped block is slidably connected to the inner wall of the workbench. The bottom of the I-shaped block is rotatably connected to the top end of the movable rod. A roller is rotatably connected to the inner wall of the I-shaped block. The outer wall of the roller is in rolling connection with the outer wall of the workbench. During the sliding process of the clamping assembly, the roller rolls along the surface of the workbench, reducing the frictional resistance when the I-shaped block slides.

[0013] Preferably, the shielding assembly includes a connecting block. A shielding belt is fixedly connected to the outer wall of the connecting block. A connecting plate is fixedly connected to the end of the shielding belt away from the connecting block. A limiting post is slidably connected to the inner wall of the connecting plate. A compression spring is fixedly connected to the outer wall of the limiting post. While the clamping assembly slides, the elastic force of the compression spring is gradually released, and forces the connecting plate to slide downward along the surface of the limiting post. At this time, the shielding belt moves downward together with the connecting plate after being guided by the guide wheel.

[0014] Preferably, the outer wall of the connecting block is fixedly connected to the outer wall of the I-shaped block. The outer wall of the shielding belt is slidably connected to the outer wall of the workbench. A guide wheel is rotatably connected to the inner wall of the workbench. The outer wall of the guide wheel is in rolling connection with the outer wall of the shielding belt. The bottom of the workbench is fixedly connected to the top end of the limiting post. The top of the connecting plate is fixedly connected to the bottom end of the compression spring. The shielding belt between the connecting block and the guide wheel can shield the grooved part of the workbench surface to prevent foreign objects from falling into the frame.

[0015] The beneficial effects of the present utility model are as follows:

[0016] 1. The utility model adjusts the position of the graphite electrode to the center of the material bearing plate automatically when clamping the graphite electrode by setting a fixing mechanism. When fixing, the graphite electrode is located on the surface of the material bearing plate. At this time, the output end of the hydraulic telescopic rod drives the connecting frame to move downward, and at the same time, the four clamping components contract inward synchronously, so that the graphite electrode can be adjusted to the center position of the material bearing plate for subsequent processing of the graphite electrode.

[0017] 2. The utility model reduces the frictional resistance when the I-shaped block slides by setting a clamping component. During the clamping process, the roller rolls along the surface of the workbench. When the surface of the clamping block contacts the edge of the graphite electrode, the limiting rod slides along the inner wall of the fixed block. At this time, the tension spring is stretched, so that the clamping force of the clamping block can be buffered to prevent the clamping block from clamping the graphite electrode damaged due to too fast movement.

[0018] 3. The utility model shields the grooved part of the workbench surface to prevent foreign objects from falling into the inside of the frame by setting a shielding component. When the clamping component slides, the compression spring drives the connecting plate to slide downward along the surface of the limiting column. At this time, the shielding belt moves downward together with the connecting plate after being guided by the guide wheel, and the shielding belt between the connecting block and the guide wheel can shield the grooved part of the workbench surface. Description of the Drawings

[0019] Figure 1 is the front view of the utility model;

[0020] Figure 2 is the sectional view of the utility model;

[0021] Figure 3 is the structural schematic diagram of the fixing mechanism of the utility model;

[0022] Figure 4 is the structural schematic diagram of the clamping component of the utility model;

[0023] Figure 5 is the structural schematic diagram of the shielding component of the utility model.

[0024] In the figure: 1, frame; 2, support feet; 3, fixing mechanism; 31, workbench; 32, material bearing plate; 33, clamping component; 34, hydraulic telescopic rod; 35, connecting frame; 36, movable rod; 37, shielding component; 331, I-shaped block; 332, fixed block; 333, limiting rod; 334, clamping block; 335, movable plate; 336, tension spring; 337, roller; 371, connecting block; 372, shielding belt; 373, guide wheel; 374, connecting plate; 375, limiting column; 376, compression spring. Detailed Embodiments

[0025] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present utility model are given for purposes of illustration and description, and are not exhaustive or limit the present utility model to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present utility model, and enable those of ordinary skill in the art to understand the present utility model and thus design various embodiments with various modifications suitable for specific purposes.

[0026] Embodiment: Please refer to Figure 1 - Figure 5 , the present utility model provides a technical solution: a centering and aligning device for a graphite electrode processing lathe, comprising:

[0027] A frame 1;

[0028] Support feet 2, the top of the support feet 2 is fixedly connected to the bottom of the frame 1;

[0029] This centering and aligning device for a graphite electrode processing lathe further comprises:

[0030] A fixing mechanism 3, the fixing mechanism 3 is used to fix the graphite electrode, and the outer wall of the fixing mechanism 3 is fixedly connected to the inner wall of the frame 1;

[0031] The fixing mechanism 3 includes a workbench 31, a material receiving plate 32 is fixedly connected to the top of the workbench 31, a clamping assembly 33 is annularly arranged on the outside of the material receiving plate 32, a hydraulic telescopic rod 34 is arranged on the outside of the clamping assembly 33, the output end of the hydraulic telescopic rod 34 is fixedly connected to a connecting frame 35, the top of the connecting frame 35 is rotatably connected to a movable rod 36, the top end of the movable rod 36 is rotatably connected to the clamping assembly 33, a shielding assembly 37 is fixedly connected to the outer wall of the clamping assembly 33, the outer wall of the clamping assembly 33 is slidably connected to the inner wall of the workbench 31, the inner wall of the workbench 31 is fixedly connected to the outer wall of the shielding assembly 37, the bottom of the workbench 31 is fixedly connected to the top end of the hydraulic telescopic rod 34, and the outer wall of the workbench 31 is fixedly connected to the inner wall of the frame 1. When in use, the graphite electrode is placed on the surface of the frame 1 supported by the support feet 2, and the fixing mechanism 3 performs centering and aligning on the graphite electrode;

[0032] When fixing, the graphite electrode is located on the surface of the material receiving plate 32. At this time, the output end of the hydraulic telescopic rod 34 drives the connecting frame 35 to move downward. While moving, the connecting frame 35 drives the clamping assembly 33 to slide along the surface of the workbench 31 through the movable rod 36. At this time, the four clamping assemblies 33 contract inward synchronously to clamp and fix the graphite electrode. Because the four clamping assemblies 33 tighten inward at the same speed, the graphite electrode can be automatically adjusted to the center position of the material receiving plate 32 when it is clamped, so as to facilitate subsequent processing of the graphite electrode. The shielding assembly 37 can shield the grooved part on the surface of the workbench 31 to prevent foreign objects from falling into the inside of the frame 1.

[0033] The clamping assembly 33 includes an I-shaped block 331. A fixed block 332 is fixedly connected to the top of the I-shaped block 331. A limiting rod 333 is slidably connected to the inner wall of the fixed block 332. One end of the limiting rod 333 is fixedly connected to a clamping block 334. The other end of the limiting rod 333 is fixedly connected to a movable plate 335. A tension spring 336 is fixedly connected to the outer wall of the movable plate 335. The inner wall of the fixed block 332 is in contact with the outer wall of the movable plate 335. One end of the tension spring 336 away from the movable plate 335 is fixedly connected to the inner wall of the fixed block 332. The outer wall of the I-shaped block 331 is slidably connected to the inner wall of the workbench 31. The bottom of the I-shaped block 331 is rotatably connected to the top end of the movable rod 36. A roller 337 is rotatably connected to the inner wall of the I-shaped block 331. The outer wall of the roller 337 is in rolling connection with the outer wall of the workbench 31. During the sliding process of the clamping assembly 33, the roller 337 rolls along the surface of the workbench 31, reducing the frictional resistance when the I-shaped block 331 slides. When the surface of the clamping block 334 contacts the edge of the graphite electrode, the limiting rod 333 slides along the inner wall of the fixed block 332. At this time, the tension spring 336 is stretched by force, and the movable plate 335 slides out of the fixed block 332, thereby buffering the clamping force of the clamping block 334 and preventing the clamping block 334 from clamping the graphite electrode damaged due to too fast operation.

[0034] The shielding component 37 includes a connecting block 371. An outer wall of the connecting block 371 is fixedly connected with a shielding belt 372. One end of the shielding belt 372 away from the connecting block 371 is fixedly connected with a connecting plate 374. An inner wall of the connecting plate 374 is slidably connected with a limiting post 375. An outer wall of the limiting post 375 is fixedly connected with a compression spring 376. An outer wall of the connecting block 371 is fixedly connected with an outer wall of an I-shaped block 331. An outer wall of the shielding belt 372 is slidably connected with an outer wall of a workbench 31. A guide wheel 373 is rotatably connected to an inner wall of the workbench 31. An outer wall of the guide wheel 373 is in rolling connection with an outer wall of the shielding belt 372. A bottom of the workbench 31 is fixedly connected with a top end of the limiting post 375. A top of the connecting plate 374 is fixedly connected with a bottom end of the compression spring 376. While the clamping component 33 slides, the elastic force of the compression spring 376 is gradually released, and forces the connecting plate 374 to slide downward along a surface of the limiting post 375. At this time, the shielding belt 372 moves downward together with the connecting plate 374 after being guided by the guide wheel 373. When the clamping component 33 resets, the I-shaped block 331 drives the shielding belt 372 to reset through the connecting block 371, and the compression spring 376 recharges. During this process, the shielding belt 372 between the connecting block 371 and the guide wheel 373 can shield a grooved part on a surface of the workbench 31 to prevent foreign objects from falling into the inside of the frame 1.

[0035] Working principle:

[0036] During use, place the graphite electrode on a surface of the frame 1 supported by the feet 2, and perform centering and alignment of the graphite electrode by the fixing mechanism 3;

[0037] During fixing, the graphite electrode is located on a surface of the material receiving plate 32. At this time, an output end of the hydraulic telescopic rod 34 drives the connecting frame 35 to move downward. While moving, the connecting frame 35 drives the clamping component 33 to slide along a surface of the workbench 31 through the movable rod 36. At this time, the four clamping components 33 synchronously contract inward to clamp and fix the graphite electrode. Because the four clamping components 33 simultaneously and equally speedily contract inward, when the graphite electrode is clamped, it can be automatically adjusted to a central position of the material receiving plate 32 for subsequent processing of the graphite electrode. The shielding component 37 can shield a grooved part on a surface of the workbench 31 to prevent foreign objects from falling into the inside of the frame 1;

[0038] During this process, the roller 337 rolls along a surface of the workbench 31, reducing the frictional resistance when the I-shaped block 331 slides. When a surface of the clamping block 334 contacts an edge of the graphite electrode, the limiting rod 333 slides along an inner wall of the fixed block 332. At this time, the tension spring 336 is stretched by force, and the movable plate 335 slides out of the fixed block 332, thereby buffering the clamping force of the clamping block 334 to prevent the clamping block 334 from running too fast and damaging the graphite electrode;

[0039] While the clamping assembly 33 slides, the elastic force of the compression spring 376 is gradually released, forcing the connecting plate 374 to slide downward along the surface of the limit post 375. At this time, the shielding belt 372 moves downward together with the connecting plate 374 after being guided by the guide wheel 373. When the clamping assembly 33 resets, the I-shaped block 331 drives the shielding belt 372 to reset through the connecting block 371, and the compression spring 376 is recharged. During this process, the shielding belt 372 between the connecting block 371 and the guide wheel 373 can shield the grooved part on the surface of the workbench 31 to prevent foreign objects from falling into the inside of the frame 1.

[0040] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art and related fields based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention. Structures, devices, and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, are implemented according to conventional means in the art.

Claims

1. A centering device for a graphite electrode processing lathe, comprising: Rack(1); A support leg (2), the top of the support leg (2) being fixedly connected to the bottom of the frame (1); Characterized in that the centering and adjusting device for the graphite electrode processing lathe also includes: A fixing mechanism (3), the fixing mechanism (3) being used to fix the graphite electrode, the outer wall of the fixing mechanism (3) being fixedly connected to the inner wall of the frame (1); The fixing mechanism (3) comprises a workbench (31), the top of the workbench (31) is fixedly connected to a material receiving plate (32), a clamping assembly (33) is provided in a circular array outside the material receiving plate (32), a hydraulic telescopic rod (34) is arranged outside the clamping assembly (33), an output end of the hydraulic telescopic rod (34) is fixedly connected to a connecting frame (35), a movable rod (36) is rotatably connected to the top of the connecting frame (35), a top end of the movable rod (36) is rotatably connected to the clamping assembly (33), and a shielding assembly (37) is fixedly connected to the outer wall of the clamping assembly (33).

2. The centering device for a graphite electrode processing lathe according to claim 1, characterized in that: The outer wall of the clamping assembly (33) is slidably connected to the inner wall of the workbench (31), the inner wall of the workbench (31) is fixedly connected to the outer wall of the shielding assembly (37), the bottom of the workbench (31) is fixedly connected to the top of the hydraulic telescopic rod (34), and the outer wall of the workbench (31) is fixedly connected to the inner wall of the frame (1).

3. The centering device for a graphite electrode processing lathe according to claim 1, characterized in that: The clamping assembly (33) comprises an I-shaped block (331), the top of the I-shaped block (331) is fixedly connected to a fixed block (332), the inner wall of the fixed block (332) is slidably connected to a limit rod (333), one end of the limit rod (333) is fixedly connected to a clamping block (334), the other end of the limit rod (333) is fixedly connected to a movable plate (335), and the outer wall of the movable plate (335) is fixedly connected to a tension spring (336).

4. The centering device for a graphite electrode processing lathe according to claim 3 is characterized in that: The inner wall of the fixed block (332) contacts the outer wall of the movable plate (335); one end of the tension spring (336) away from the movable plate (335) is fixedly connected to the inner wall of the fixed block (332); the outer wall of the I-shaped block (331) is slidably connected to the inner wall of the workbench (31); the bottom of the I-shaped block (331) is rotatably connected to the top of the movable rod (36); the inner wall of the I-shaped block (331) is rotatably connected to a roller (337); and the outer wall of the roller (337) is rollingly connected to the outer wall of the workbench (31).

5. The centering device for a graphite electrode processing lathe according to claim 1, characterized in that: The shielding assembly (37) comprises a connecting block (371), the outer wall of the connecting block (371) being fixedly connected to a shielding belt (372), one end of the shielding belt (372) away from the connecting block (371) being fixedly connected to a connecting plate (374), the inner wall of the connecting plate (374) being slidably connected to a limiting column (375), and the outer wall of the limiting column (375) being fixedly connected to a compression spring (376).

6. The centering device for a graphite electrode processing lathe according to claim 5, characterized in that: The outer wall of the connecting block (371) is fixedly connected to the outer wall of the I-shaped block (331); the outer wall of the shielding belt (372) is slidably connected to the outer wall of the workbench (31); the inner wall of the workbench (31) is rotatably connected to a guide wheel (373); the outer wall of the guide wheel (373) is rollingly connected to the outer wall of the shielding belt (372); the bottom of the workbench (31) is fixedly connected to the top of a limiting column (375); and the top of the connecting plate (374) is fixedly connected to the bottom end of a compression spring (376).

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