Rough machining device for sphere made of high-hardness brittle material

Abstract

The utility model provides a rough machining device for balls made of high-hardness and brittle materials. The rough machining device comprises a ball nesting device, a first motor, a second motor, a sliding block set, a clamping device and a workbench. The ball nesting device adopts a bowl-shaped grinding wheel to grind a material to be processed into a ball body; the first motor is connected with the ball nesting device, and the first motor is used for driving the ball nesting device to rotate so as to grind the to-be-machined material; the second motor is connected with the sliding block set, the sliding block set is connected with the first motor, the second motor drives the sliding block set to move up and down, the first motor is driven to move up and down, and the first motor moves up and down to drive the ball socket device to get close to or away from a to-be-machined material. The clamping device is arranged on the workbench and located under the ball nesting device so that the to-be-machined material can be fixed in the grinding process of the to-be-machined material through the ball nesting device. According to the device, the grinding part of the to-be-machined material can be integrally rounded by rotating the ball socket device, the grinding efficiency is high, the machining time is short, and the machining quality is high.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing of high-hardness and brittle materials, in particular to a rough processing device for a sphere made of high-hardness and brittle materials. Background Art

[0002] High-hardness and brittle materials refer to silicon materials, sapphire, optical glass, ceramic materials, etc., which have the characteristics of high hardness, high brittleness, wear resistance, corrosion resistance, and oxidation resistance. It is precisely because of their unique properties that these special materials are increasingly widely used in the field of high-tech technology. Complete precision high-hardness and brittle material spheres are important parts of precision instruments and equipment. They can be used as measurement benchmarks for roundness gauges, rotors for electrostatic gyroscopes, rolling elements for precision bearings, etc. The machining accuracy of the sphere plays a key and decisive role in the reliability and service life of the instruments and equipment it constitutes. To make a complete precision sphere, the sphere is first rough-machined, and then ground and polished to ensure the accuracy of the sphere. There are two main ways to perform rough processing on spheres. One way is to roughly cut the drilled cylindrical barrel into a sphere manually, and then the workpiece is rotated and the cylindrical grinding head continuously adjusts the angle for pressure grinding. The processing is labor-intensive, the processing quality is uneven, and there are great safety hazards. The other way is to grind the drilled cylindrical barrel into a sphere through a CNC lathe. The processing accuracy is high, but the grinding wheel of the CNC lathe is single-point and single-sided grinding, the grinding efficiency is low, and the processing time is long. Summary of the invention

[0003] In view of this, the utility model provides a device for rough processing a ball made of a high-hardness and brittle material, so as to solve the above-mentioned problems existing in the prior art when rough processing a ball made of a high-hardness and brittle material.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A device for rough processing a sphere of a highly hard and brittle material, comprising a socket, a first motor, a second motor, a slider group, a clamping device and a workbench; the socket adopts a bowl-shaped grinding wheel to grind the material to be processed into a sphere; the first motor is connected to the socket, and the first motor is used to drive the socket to rotate to grind the material to be processed; the second motor is connected to the slider group, and the slider group is connected to the first motor, so that the slider group is driven up and down by the second motor to drive the first motor to move up and down, and the first motor moves up and down and drives the socket to approach or move away from the material to be processed; the clamping device is arranged on the workbench and is located directly below the socket, so as to fix the material to be processed during the process of the socket grinding the material to be processed.

[0006] Preferably, a plurality of raised teeth are evenly distributed inside the socket, and electroplated corundum is provided on the surfaces of the teeth and the bottom surface of the socket, so that the electroplated corundum on the surfaces of the teeth and the socket is used to grind the material to be processed.

[0007] Preferably, the rough processing device for a sphere of high-hardness and brittle material also includes a main shaft, a first motor connecting plate and a first motor connecting piece; the main shaft passes through the first motor connecting plate and the first motor connecting piece, and one end of the main shaft is connected to the first motor, and the other end of the main shaft is threadedly connected to the socket, so that the first motor controls the rotation of the socket through the main shaft; a water inlet is provided on the side of the first motor connecting piece facing the outside, and a water inlet pipeline is provided on the upper part of the socket, and the water inlet is connected to the water inlet pipeline, so that water can be introduced into the socket from the outside through the water inlet and the water inlet pipeline during the grinding process of the socket.

[0008] Preferably, the first motor connecting member further comprises a bearing and a skeleton oil seal; the bearing is connected to the skeleton oil seal, and the bearing and the skeleton oil seal are installed between the main shaft and the first motor connecting member to ensure normal rotation of the socket.

[0009] Preferably, the slider group also includes a ball screw, a track, and a ball screw connecting assembly. The second motor is connected to the ball screw, and the ball screw is connected to the first motor through the track and the ball screw connecting assembly, so that the second motor drives the ball screw to move and drive the first motor to rise or fall.

[0010] Preferably, the ball screw connection assembly includes a first connection member, a second connection member, and a third connection member, the two sides of the first connection member are connected to the first motor, the middle of the first connection member is connected to the second connection member, the middle part of the second connection member is connected to the ball screw, the two sides of the second connection member are connected to the third connection member, the third connection member is installed on the track, and the track is arranged parallel to the ball screw, so that when the second motor drives the ball screw to move, the second connection member is driven to move, and when the second connection member moves, the third connection member is driven to move along the track, and when the second connection member moves, it drives the first connection member connected to it to move, thereby driving the first motor and the ball socket to move.

[0011] Preferably, the rough processing device for a sphere of high-hardness and brittle material further comprises a vacuum absorber, which is detachably mounted on the clamping device to fix the processed side of the material to be processed.

[0012] Preferably, the first motor is a reduction motor, and the second motor is a servo motor.

[0013] Preferably, the diameter of the sphere is 50-280 mm.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] When the utility model performs rough processing on a sphere of high-hardness and brittle material, the material to be processed is first placed on a clamping device and clamped and fixed, wherein the part to be ground faces the ball socket, and then the second motor is started, and the second motor controls the first motor to move downward to drive the ball socket to approach the material to be processed. When the ball socket approaches the material to be processed, the first motor is started to drive the ball socket to rotate, and the ball socket contacts the material to be processed during the rotation process to grind the material to be processed. The ball socket adopts a bowl-shaped grinding wheel, so that the part to be ground of the material to be processed can be rounded as a whole through rotation, and the grinding efficiency is high, the processing time is short, and the processing quality is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a diagram of the sphere processing stages of the utility model.

[0017] Figure 2 It is a front structural schematic diagram of the utility model.

[0018] Figure 3 It is a three-dimensional cross-sectional view of the ball socket of the utility model.

[0019] Figure 4 It is a bottom view of the ball socket of the utility model.

[0020] Figure 5 It is a cross-sectional view of the main shaft, the first motor connecting plate, the first motor connecting member and the socket assembly of the utility model.

[0021] Figure 6 It is a ball screw of the utility model and an exploded diagram of the ball screw.

[0022] Figure 7 This is another front structural schematic diagram of the utility model.

[0023] Figure 8 It is a schematic structural diagram of the vacuum adsorber of the present utility model.

[0024] In the figure: a rough processing device 10 for a sphere of high hardness and brittle material, a ball socket 100, a tooth portion 110, a water inlet pipe 120, a first motor 200, a main shaft 210, a first motor connecting plate 220, a first motor connecting piece 230, a water inlet 231, a bearing 232, a skeleton oil seal 233, a second motor 300, a slider group 310, a ball screw 311, a track 312, a dust cover 313, a ball screw connecting piece 320, a first connecting piece 321, a second connecting piece 322, a third connecting piece 323, a clamping device 400, a workbench 500, a material to be processed 600, and a vacuum adsorber 700. DETAILED DESCRIPTION

[0025] The technical scheme and technical effects of the embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings of the present invention.

[0026] Please also see Figure 1 to Figure 2 A rough processing device 10 for a ball of a high hardness and brittle material comprises a socket 100, a first motor 200, a second motor 300, a slider group 310, a clamping device 400 and a workbench 500; the socket 100 uses a bowl-shaped grinding wheel to grind a material 600 to be processed into a sphere; the first motor 200 is connected to the socket 100, and the first motor 200 is used to drive the socket 100 to rotate to grind the material 600 to be processed; the second motor 300 is connected to the slider group 310, and the second motor 300 is connected to the slider group 310. 0, the slider group 310 is connected to the first motor 200, so as to drive the slider group 310 to move up and down through the second motor 300, drive the first motor 200 to move up and down, and the first motor 200 moves up and down and drives the socket 100 to approach or move away from the material 600 to be processed; the clamping device 400 is arranged on the workbench 500 and is located directly below the socket 100 to fix the material 600 to be processed during the process of grinding the material 600 by the socket 100. Among them, the diameter of the rough-machined ball is 50-280mm.

[0027] like Figure 1 As shown, there are five main stages in the rough processing of a sphere made of high-hardness and brittle materials. The first stage is to obtain a cylindrical body by drilling with a drilling device; the second stage is to cut one end of the cylindrical body and simply cut off a part of the material to make its shape multi-faceted and rough, close to a spherical surface, in order to reduce the workload of the next stage and improve the work efficiency of the next stage (if the work efficiency of the next stage is not considered at this stage, this stage can also be omitted and directly enter the next stage); the third stage is to use the rough processing device for spheres made of high-hardness and brittle materials of the utility model to round the cut part of the cylindrical body; the fourth stage is to cut the other end of the cylindrical body, and the requirements are similar to those of the second stage; the fifth stage is to use the rough processing device for spheres made of high-hardness and brittle materials of the utility model to round the cut part of the other end of the cylindrical body, thereby obtaining a sphere.

[0028] When the utility model performs rough machining on a sphere of high hardness and brittleness, the material to be machined 600 is first placed on the clamping device 400 and clamped and fixed, wherein the part to be ground (such as Figure 1 The second stage upward part or the fourth stage upward part) faces the socket device 100, and then the second motor 300 starts to work, controlling the first motor 200 to move downward to drive the socket device 100 close to the material 600 to be processed. When the socket device 100 is close to the material 600 to be processed, the first motor 200 starts and drives the socket device 100 to rotate. The socket device 100 contacts the material 600 to be processed during the rotation and grinds the material 600 to be processed. The socket device 100 adopts a bowl-shaped grinding wheel, so that the part to be ground of the material 600 to be processed can be rounded by rotation, and the grinding efficiency is high, the processing time is short, and the processing quality is high.

[0029] Further, please also see Figure 3 to Figure 4 , a plurality of raised teeth 110 are evenly distributed inside the socket 100, and electroplated corundum is provided on the surface of the teeth and the bottom surface of the socket, so that the electroplated corundum on the surface of the teeth and the surface of the socket is used to grind the material 600 to be processed. When the socket 100 rotates, the plurality of teeth 110 inside the socket 100 rotates accordingly, so that the entire curved surface of the material to be processed that needs to be ground can be covered, thereby reducing the manufacturing cost of the socket. In some embodiments, eight teeth are evenly distributed inside the socket 100, and the eight teeth are provided with mutually staggered tool grooves, so that the contact area between the electroplated corundum of the teeth and the material to be processed is more sufficient, thereby improving the grinding efficiency.

[0030] Further, please also see Figures 2 to 5The rough processing device 10 for a sphere of high hardness and brittle material also includes a main shaft 210, a first motor connecting plate 220 and a first motor connecting piece 230; the main shaft 210 runs through the first motor connecting plate 220 and the first motor connecting piece 230, and one end of the main shaft 210 is connected to the first motor 200, and the other end of the main shaft 210 is threadedly connected to the socket 100, so that the first motor 200 controls the rotation of the socket 100 through the main shaft 210; a water inlet 231 is provided on the side of the first motor connecting piece 230 facing the outside, and a water inlet pipeline 120 is provided on the upper part of the socket 100, and the water inlet 231 is connected to the water inlet pipeline 120, so that during the grinding process of the socket 100, water can be introduced into the socket 100 from the outside through the water inlet 231 and the water inlet pipeline 120. When the sphere is rough-processed, the first motor 200 drives the socket 100 to rotate through the main shaft 210, and the first motor connector 230 does not rotate. At the same time, external water is introduced from the water inlet 231 and enters the socket through the water inlet pipe 120. In the process of grinding the material to be processed by the socket, water is added while grinding. On the one hand, the temperature of the grinding part is reduced to prevent thermal stress from causing deformation of the sphere; on the other hand, powder is generated during the grinding process, and the powder is taken away by the water flow to prevent the powder from falling on the sphere and affecting the processing of the sphere. In some embodiments, a pipe thread is provided at the water inlet 231 for connecting the water inlet with an external water pipeline. In some embodiments, an overflow port is also provided on the upper part of the first motor connector 230 to overflow excess water.

[0031] Furthermore, the first motor connector 230 further includes a bearing 232 and a skeleton oil seal 233; the bearing 232 is connected to the skeleton oil seal 233, and the bearing 232 and the skeleton oil seal 233 are installed between the main shaft 210 and the first motor connector 230 to ensure the normal rotation of the socket 100. Specifically, Figure 5 As shown, two bearings and two skeleton oil seals are installed on the main shaft, and the main shaft 210 is supported by the bearing 232, which reduces the friction coefficient when the main shaft 210 rotates, thereby ensuring the normal operation of the socket ball device during rotation grinding. The skeleton oil seal 233 is installed in the middle of the two bearings to prevent the lubricating oil from leaking from the bearings, ensuring the normal operation of the main shaft and the socket ball device, and improving the working efficiency and life of the main shaft and the socket ball device. In some embodiments, the first motor connector is also equipped with a hole elastic ring, which is installed on the main shaft, plays a buffering and stabilizing role during the rotation of the main shaft, and prolongs the service life of the main shaft.

[0032] Further, please also see Figure 2 , Figure 6The slider group 310 further includes a ball screw 311, a track 312, and a ball screw connecting assembly 320. The second motor 300 is connected to the ball screw 311, and the ball screw 311 is connected to the first motor 200 through the ball screw connecting assembly 320, so that the second motor 300 drives the ball screw 311 to move and drive the first motor 200 to rise or fall. The ball screw can accurately control the moving distance of the first motor 200, and then accurately control the moving distance of the socket 100, thereby improving the grinding efficiency of the socket.

[0033] Furthermore, if Figure 6 As shown, the ball screw connection assembly 320 includes a first connection member 321, a second connection member 322, and a third connection member 323. Both sides of the first connection member 321 are connected to the first motor 200, the middle of the first connection member 321 is connected to the second connection member 322, the middle part of the second connection member 322 is connected to the ball screw 311, both sides of the second connection member 322 are connected to the third connection member 323, and the third connection member 323 is installed on the track 312. The track 312 is arranged parallel to the ball screw 311, so that when the second motor 300 drives the ball screw 311 to move, the second connection member 322 is driven to move, and when the second connection member 322 moves, the third connection member 323 is driven to move along the track, and when the second connection member 322 moves, it drives the first connection member 321 connected thereto to move, thereby driving the first motor 200 and the socket 100 to move. When the socket ball device needs to be lowered, the second motor 300 drives the ball screw 311 to move, and the nut of the ball screw 311 moves downward along the ball screw 311, and the second connecting member 322 connected to the ball screw 311 moves downward at the same time, and the second connecting member 322 is not only connected to the ball screw, but also connected to the third connecting members 323 on both sides of the ball screw 311, so that the second connecting member 322 can remain stable when moving; at the same time, the third connecting member 323 is connected to the track 312, and the second connecting member 322 moves downward. The third connecting member 323 is driven to move, and the third connecting member 323 moves downward along the track, so that the third connecting member 323 can keep the second connecting member 322 stable during movement, and will not affect the normal movement of the second connecting member 321; the first connecting member 321 is respectively connected to the second connecting member 322 and the first motor 200. When the second connecting member 322 moves downward, it will also drive the first connecting member 321 to move downward, thereby driving the first motor 200 to move downward, and the first motor 200 then drives the socket device to move downward.

[0034] Furthermore, if Figure 6As shown, dust covers 313 are provided on both sides of the ball screw 311 to isolate the ball screw 311 from the socket 100, and prevent dust generated by the socket 100 during grinding from entering the ball screw 311. The socket 100 generates dust during grinding, and if water is added while grinding, water will also splash out during the grinding process. By providing dust covers 313 on both sides of the ball screw 311, dust and water can be prevented from entering the ball screw to affect the normal operation of the ball screw, thereby extending the service life of the ball screw.

[0035] Further, please also see Figure 7 and Figure 8 The rough processing device 10 for high hardness and brittle material spheres further comprises a vacuum absorber 700, which is detachably mounted on the clamping device 400 to fix the processed side of the material 600 to be processed. Figure 1 In the fourth stage, one side of the cylindrical body has been rounded. If the rounded part is clamped directly with a clamping device, on the one hand, the rounded part has an arc and is not easy to fix. On the other hand, the clamping device will apply pressure to the contacting part during the clamping process, which may damage the rounded part. Therefore, the high-hardness and brittle material sphere rough processing device 10 of the utility model also includes a vacuum absorber 700, which is placed on the clamping device 400 for clamping, and the rounded part of the material to be processed is placed on the vacuum absorber 700. The vacuum absorber 700 is evacuated inside to firmly absorb the material to be processed by using the air pressure difference.

[0036] Furthermore, the first motor 200 is a reduction motor, and the second motor 300 is a servo motor. The reduction motor has a simple and relatively stable structure, and the rotation of the socket can be well controlled by the reduction motor to achieve grinding of the ball; the servo motor has high precision, and can achieve high-precision position control, and accurately control the feeding distance of the ball screw, so that the ball screw can be fed in a micro-amount, so as to better control the descending distance of the socket, so that the socket is accurately aligned with the part to be processed, and achieve accurate grinding of the part to be processed.

[0037] Furthermore, the clamping device 400 is a three-jaw chuck, and the three-jaw chuck utilizes the radial movement of three movable jaws evenly distributed on the chuck body to achieve clamping and fixing of the material to be processed.

[0038] The above disclosure is only a preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of the present invention. A person skilled in the art can understand that all or part of the processes of the above embodiments and equivalent changes made according to the claims of the present invention still fall within the scope of the present invention.

Claims

1. A rough processing device for a sphere of high hardness and brittleness material, characterized in that: It includes a ball socket, a first motor, a second motor, a slider group, a clamping device and a workbench; the ball socket adopts a bowl-shaped grinding wheel to grind the material to be processed into a sphere; the first motor is connected to the ball socket, and the first motor is used to drive the ball socket to rotate to grind the material to be processed; the second motor is connected to the slider group, and the slider group is connected to the first motor, so that the slider group can be driven up and down by the second motor to drive the first motor to move up and down, and the up and down movement of the first motor drives the ball socket to approach or move away from the material to be processed; the clamping device is arranged on the workbench and is located directly below the ball socket, so as to fix the material to be processed during the process of the ball socket grinding the material to be processed.

2. The rough processing device for a high-hardness and brittle material ball according to claim 1 is characterized in that: A plurality of raised teeth are evenly distributed inside the socket, and electroplated corundum is provided on the surfaces of the teeth and the bottom surface of the socket, so that the electroplated corundum on the surfaces of the teeth and the socket can be used to grind the material to be processed.

3. The rough processing device for a high-hardness and brittle material ball according to claim 2 is characterized in that: It also includes a main shaft, a first motor connecting plate and a first motor connecting member; the main shaft passes through the first motor connecting plate and the first motor connecting member, and one end of the main shaft is connected to the first motor, and the other end of the main shaft is threadedly connected to the socket, so that the first motor controls the rotation of the socket through the main shaft; a water inlet is provided on the side of the first motor connecting member facing the outside, and a water inlet pipeline is provided on the upper part of the socket, and the water inlet is connected to the water inlet pipeline, so that water can be introduced into the socket from the outside through the water inlet and the water inlet pipeline during the grinding process of the socket.

4. The rough processing device for a high-hardness and brittle material ball according to claim 3 is characterized in that: The first motor connecting member also includes a bearing and a skeleton oil seal; the bearing is connected to the skeleton oil seal, and the bearing and the skeleton oil seal are installed between the main shaft and the first motor connecting member to ensure the normal rotation of the socket.

5. The rough processing device for a high-hardness and brittle material ball according to claim 1 is characterized in that: The slider group also includes a ball screw, a track, and a ball screw connecting assembly. The second motor is connected to the ball screw, and the ball screw is connected to the first motor through the track and the ball screw connecting assembly, so that the second motor drives the ball screw to move and drive the first motor to rise or fall.

6. The rough processing device for a high-hardness and brittle material ball according to claim 5 is characterized in that: The ball screw connection assembly includes a first connection member, a second connection member, and a third connection member. The two sides of the first connection member are connected to the first motor, the middle of the first connection member is connected to the second connection member, the middle part of the second connection member is connected to the ball screw, the two sides of the second connection member are connected to the third connection member, and the third connection member is installed on the track. The track is arranged parallel to the ball screw, so that when the second motor drives the ball screw to move, the second connection member is driven to move, and when the second connection member moves, the third connection member is driven to move along the track, and when the second connection member moves, it drives the first connection member connected to it to move, thereby driving the first motor and the ball socket to move.

7. The rough processing device for a high-hardness and brittle material ball according to claim 1 is characterized in that: It also includes a vacuum absorber, which is detachably mounted on the clamping device to fix the processed side of the material to be processed.

8. The rough processing device for a high-hardness and brittle material ball according to claim 1 is characterized in that: The first motor is a reduction motor, and the second motor is a servo motor.

9. The device for rough processing a ball of a high-hardness and brittle material according to any one of claims 1 to 8, characterized in that: The diameter of the sphere is 50-280mm.

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