CN218926471U

CN218926471U - Coarse and fine grinding integrated numerical control thread grinder

Info

Publication number: CN218926471U
Application number: CN202223079462.6U
Authority: CN
Inventors: 奚林; 任寅
Original assignee: Wuxi Kezhixin Machinery Technology Co ltd
Current assignee: Wuxi Kezhixin Machinery Technology Co ltd
Priority date: 2022-11-18
Filing date: 2022-11-18
Publication date: 2023-04-28
Anticipated expiration: 2032-11-18

Abstract

The utility model relates to a coarse and fine grinding integrated numerical control thread grinder which comprises a supporting device, wherein a workpiece clamping device is arranged at the top of the supporting device, a roller device is fixed at the side part of the workpiece clamping device, a grinding wheel device is further arranged at the top of the supporting device, a workpiece is machined by the grinding wheel device, and the workpiece clamping device clamps the workpiece and corresponds to the grinding wheel device. Through setting up coarse grinding emery wheel and finish grinding emery wheel on same lathe, can make the work piece remove the process of secondary dismantlement from to save process time, and the rotation center height of two emery wheels and work piece remains unanimous throughout, thereby improves the machining precision of lathe.

Description

Coarse and fine grinding integrated numerical control thread grinder

Technical Field

The utility model relates to the technical field of thread grinding machines, in particular to a coarse and fine grinding integrated numerical control thread grinding machine.

Background

The screw nut is widely used for transmission parts in intelligent manufacturing, medical treatment, aerospace and other equipment, directly influences the transmission precision of the equipment, and also provides higher requirements on the processing quality of threads along with the continuous improvement of the processing precision requirements of the equipment.

The screw nut is formed by adopting an internal thread grinder for grinding, in the prior art, the fine thread is machined by adopting two internal thread grinders, a first grinder is used for coarse grinding, a workpiece is detached from the grinder after the coarse grinding is finished and is mounted on a second grinder for short-time fine grinding, the machining position needs to be adjusted, the precision is lost in the process of dismounting the workpiece, the machining precision of the thread cannot meet the use requirement, the dismounting time needs to be consumed, and the machining efficiency is reduced.

Disclosure of Invention

The applicant provides a coarse grinding and fine grinding integrated numerical control thread grinder with reasonable structure aiming at the defects in the prior art, and the coarse grinding wheel and the fine grinding wheel are arranged on the same machine tool, so that a workpiece is free from the process of secondary disassembly, the processing time is saved, the heights of the rotation centers of the two grinding wheels and the workpiece are always consistent, and the processing precision of the machine tool is improved.

The technical scheme adopted by the utility model is as follows:

the coarse and fine grinding integrated numerical control thread grinder comprises a supporting device, wherein a workpiece clamping device is arranged at the top of the supporting device, a roller device is fixed at the side part of the workpiece clamping device, a grinding wheel device is further arranged at the top of the supporting device, a workpiece is machined by the grinding wheel device, and the workpiece clamping device clamps the workpiece to correspond to the grinding wheel device;

the structure of the grinding wheel device is as follows: including being square grinding frame layer board, the top of grinding frame layer board is provided with first emery wheel seat and second emery wheel seat, first emery wheel seat with the lateral part of second emery wheel seat is opened there is the through-hole, first emery wheel axle and second emery wheel axle are installed to the inside cooperation of through-hole, first emery wheel axle with the axle center of second emery wheel axle is high equally, and coarse grinding emery wheel is installed to the axle end of first emery wheel axle, and the finish grinding emery wheel is installed to the axle end of second emery wheel axle, and the both sides of grinding frame layer board bottom are provided with grinding frame layer board step, and the centre of two grinding frame layer board steps is provided with grinding frame layer board recess.

As a further improvement of the above technical scheme:

the material of the rough grinding wheel is diamond.

The top of the grinding frame supporting plate is also provided with a sliding groove.

And the two side parts of the grinding frame supporting plate are fixed with telescopic protection devices.

The structure of the supporting device is as follows: the grinding wheel device comprises a base which is cube-shaped, a first sliding rail and a second sliding rail are fixed in the base, a workpiece clamping device is installed at the top of the first sliding rail, and a grinding wheel device is installed at the top of the second sliding rail.

The side part of the base is provided with a circular through hole.

The workpiece clamping device has the structure that: the clamping device comprises a square workpiece supporting plate, wherein a cubic workpiece box is fixed at the top of the workpiece supporting plate, a servo motor is fixed at the side part of the workpiece box, a cylindrical chuck is fixed at the other side part of the workpiece box, workpiece supporting plate steps are arranged at two sides of the bottom of the workpiece supporting plate, and a workpiece supporting plate groove is formed in the middle of each workpiece supporting plate step.

The rotation center of the chuck is equal to the shaft centers of the first grinding wheel shaft and the second grinding wheel shaft.

And the two side parts of the workpiece supporting plate are fixed with telescopic protection devices.

The roller device has the structure that: the automatic diamond grinding machine comprises a roller base plate fixed with a workpiece clamping device, wherein the roller base plate is fan-shaped, a roller adjusting plate is arranged on the side portion of the roller base plate, a roller seat is fixed on the side portion of the roller adjusting plate, a through hole is formed in the side portion of the roller seat, a roller shaft is mounted in the through hole in a matched mode, and a diamond roller is fixed at the shaft end of the roller shaft.

The beneficial effects of the utility model are as follows:

the utility model has compact and reasonable structure and convenient operation, and can lead the workpiece to avoid the secondary disassembly process by arranging the rough grinding wheel and the fine grinding wheel on the same machine tool, thereby saving the processing time, and leading the two grinding wheels to be consistent with the processing center of the workpiece all the time, thereby improving the processing precision of the machine tool.

The utility model also has the following advantages:

(1) The rough grinding wheel is made of diamond, and has high diamond hardness, so that the rough grinding wheel does not need to be trimmed in the using process of a machine tool, the processing time can be saved, and the processing efficiency can be improved.

(2) The grinding frame supporting plate is provided with the protection device, the protection device is waterproof and oil-proof, water and oil can be prevented from entering the servo motor, and the stable operation of the grinding machine is ensured.

(3) The utility model has simple structure, saves the production cost, has small volume and small occupied area, and can be suitable for the production of small plants.

(4) The utility model can also process the coarse thread by using the coarse grinding wheel, and has two purposes.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a front view of fig. 1.

Fig. 3 is a right side view of fig. 1.

Fig. 4 is a schematic structural view of a workpiece clamping device in the present utility model.

Fig. 5 is a bottom view of fig. 4.

Fig. 6 is a schematic structural diagram of a roller device according to the present utility model.

Fig. 7 is a side view of fig. 6.

Fig. 8 is a schematic structural view of the grinding wheel unit according to the present utility model.

Fig. 9 is a front view of fig. 8.

Fig. 10 is a bottom view of fig. 8.

Fig. 11 is a schematic structural view of the present utility model in an operating state.

Wherein: 1. a base; 2. a workpiece clamping device; 3. a roller device; 4. a grinding wheel device; 5. a protective device; 6. a workpiece;

201. a workpiece box; 202. a servo motor; 203. a chuck; 204. a workpiece pallet;

301. a roller base plate; 302. a roller adjusting plate; 303. a diamond roller; 304. a roller shaft; 305. a roller seat;

401. rough grinding of the grinding wheel; 402. finely grinding the grinding wheel; 403. a first grinding wheel seat; 404. a second grinding wheel seat; 405. a first grinding wheel shaft; 406. a second grinding wheel shaft; 407. and a grinding frame supporting plate.

Detailed Description

The following describes specific embodiments of the present utility model with reference to the drawings.

The structure and the function of the utility model are as follows:

as shown in fig. 1-11, the coarse grinding and fine grinding integrated numerical control thread grinder comprises a base 1, wherein a workpiece clamping device 2 is arranged at the top of the base 1, a roller device 3 is fixed at the side part of the workpiece clamping device 2, a grinding wheel device 4 is also arranged at the top of the base 1, the grinding wheel device 4 processes a workpiece 6, and the workpiece clamping device 2 clamps the workpiece 6 to correspond to the grinding wheel device 4;

the grinding wheel device 4 has the structure that: the grinding machine comprises a square grinding frame supporting plate 407, wherein a first grinding wheel seat 403 and a second grinding wheel seat 404 are arranged at the top of the grinding frame supporting plate 407, through holes are formed in the side parts of the first grinding wheel seat 403 and the second grinding wheel seat 404, a first grinding wheel shaft 405 and a second grinding wheel shaft 406 are mounted in the through holes in a matched mode, the axes of the first grinding wheel shaft 405 and the second grinding wheel shaft 406 are equal in height, a rough grinding wheel 401 is mounted at the shaft end of the first grinding wheel shaft 405, and a fine grinding wheel 402 is mounted at the shaft end of the second grinding wheel shaft 406.

The rough grinding wheel 401 is made of diamond. Because the diamond hardness is high, the phenomenon of grinding wheel passivation does not occur in the rough grinding process, the production and trimming of the rough grinding wheel 401 do not need to be suspended, and the production time is saved.

The side of the base 1 is provided with a circular through hole. The circular through holes flow out the cooling water used in the processing process.

The base 1 is a supporting seat of the whole grinding machine, the workpiece clamping device 2 is used for clamping and fixing a workpiece 6, the roller device 3 is used for finishing a finish grinding wheel 402, and the grinding wheel device 4 is used for machining fine threads on the workpiece 6.

The top of base 1 is provided with the slide rail, and the bottom of grinding frame layer board 407 is provided with recess and step, and the recess of grinding frame layer board 407 bottom is installed with the slide rail cooperation at base 1 top, can make grinding wheel unit 4 possess the degree of freedom that moves about the horizontal direction, and the step of grinding frame layer board 407 is used for spacing, makes grinding wheel unit 4 can not rock back and forth.

The work holding device 2 has the structure that: the device comprises a workpiece supporting plate 204, wherein a workpiece box 201 which is in a cube shape is fixed at the top of the workpiece supporting plate 204, a servo motor 202 is fixed at the side part of the workpiece box 201, and a chuck 203 which is in a cylindrical shape is fixed at the other side part of the workpiece box 201. The center of rotation of the chuck 203 is the same height as the axes of the first grinding wheel spindle 405 and the second grinding wheel spindle 406. The rotation center of the chuck 203, the axes of the first grinding wheel shaft 405 and the second grinding wheel shaft 406 are adjusted in height during the assembly process of the grinding machine, and the height is fixed and does not change after the assembly process is completed.

The telescopic protection device 5 is fixed at two side parts of the workpiece supporting plate 204. The guard 5 is used to protect the workpiece holding device 2.

The bottom of the workpiece supporting plate 204 is provided with a step and a groove, the groove at the bottom of the workpiece supporting plate 204 is matched with another sliding rail at the top of the base 1, so that the workpiece clamping device 2 has the freedom degree of moving forwards and backwards in the horizontal direction, and the step of the workpiece supporting plate 204 is used for limiting, so that the workpiece clamping device 2 cannot shake forwards and backwards.

The roller device 3 has the structure that: the workpiece clamping device comprises a roller base plate 301 fixed with a workpiece clamping device 2, wherein the roller base plate 301 is in a fan shape, a roller adjusting plate 302 is arranged on the side part of the roller base plate 301, a roller seat 305 is fixed on the side part of the roller adjusting plate 302, a through hole is formed in the side part of the roller seat 305, a roller shaft 304 is arranged in the through hole in a matched manner, and a diamond roller 303 is fixed at the shaft end of the roller shaft 304. The sides of the roller base 301 are also provided with two grooves. The roller base plate 301 is fixedly installed on the side of the workpiece box 201, the roller adjusting plate 302 is clamped into the groove through the groove inlets on the top and the side of the roller base plate 301, so that the roller base plate 301 can slide along the track of the groove, the roller adjusting plate 302 drives the roller seat 305 and the roller shaft 304 to move together, and the working angle of the diamond roller 303 can be adjusted.

The working process of the utility model is as follows:

as shown in fig. 11, when the grinding machine is used for machining fine internal threads on a workpiece 6, the rough grinding wheel 401 and the finish grinding wheel 402 are rotated to an angle required for machining threads, the workpiece 6 is clamped by using the chuck 203, the axis of the first grinding wheel shaft 405 is aligned with the machining center of the workpiece 6, the workpiece support plate 204 drives the workpiece 6 to move forward to be close to the rough grinding wheel 401, the first grinding wheel shaft 405 drives the rough grinding wheel 401 to rotate, rough grinding is started, when the required thread length of the workpiece 6 is ground, the tool is retracted, the workpiece support plate 204 drives the workpiece 6 to move backward to be far away from the rough grinding wheel 401, then the grinding frame support plate 407 drives the finish grinding wheel 402 to move leftwards, the axis of the second grinding wheel shaft 406 is aligned with the machining center of the workpiece 6, the workpiece support plate 204 drives the workpiece 6 to move forward to be close to the finish grinding wheel 402, the second grinding wheel shaft 406 drives the finish grinding wheel 402 to rotate, the tool is retracted when the required thread length of the workpiece 6 is ground, and grinding is completed.

When the finish grinding wheel 402 grinds a certain number of workpieces 6, the workpieces are required to be trimmed, the grinding frame support plate 407 drives the finish grinding wheel 402 to move leftwards, the axis of the second grinding wheel shaft 406 is aligned with the axis of the grinding wheel shaft 304, the working angle of the diamond roller 303 is adjusted to enable the second grinding wheel shaft 406 to be parallel to the grinding wheel shaft 304, the workpiece support plate 204 drives the diamond roller 303 to move forwards to be close to the finish grinding wheel 402 for trimming, and after trimming, the workpiece support plate 204 drives the diamond roller 303 to move backwards away from the finish grinding wheel 402 to return to the original position.

When the grinding machine processes coarse internal threads for the workpiece 6, the coarse grinding wheel 401 and the angle rotated to the thread processing requirement are used for clamping the workpiece 6, the grinding frame support plate 407 drives the coarse grinding wheel 401 to move rightwards, the axis of the first grinding wheel shaft 405 is aligned with the processing center of the workpiece 6, the workpiece support plate 204 drives the workpiece 6 to move forwards to be close to the coarse grinding wheel 401, the first grinding wheel shaft 405 drives the coarse grinding wheel 401 to rotate, coarse grinding is started, the cutter is retracted when the required thread length of the workpiece 6 is ground, the workpiece support plate 204 drives the workpiece 6 to move backwards to be far away from the coarse grinding wheel 401, and the processing is completed.

The rough grinding wheel 401 and the fine grinding wheel 402 are arranged on the same machine tool, and the rotation centers of the rough grinding wheel 401, the fine grinding wheel 402 and the workpiece 6 are guaranteed to be equal in height, so that the workpiece 6 can be machined and molded once, a secondary disassembly process is avoided, machining precision can be guaranteed, and the workpiece 6 can be suitable for high-precision equipment; and the grinder has simple structure, small size and use cost saving.

The above description is intended to illustrate the utility model and not to limit it, the scope of which is defined by the claims, and any modifications can be made within the scope of the utility model.

Claims

1. A coarse and fine grinding integrated numerical control thread grinder is characterized in that: the grinding wheel device comprises a base (1), wherein a workpiece clamping device (2) is arranged at the top of the base (1), a roller device (3) is fixed at the side part of the workpiece clamping device (2), a grinding wheel device (4) is further arranged at the top of the base (1), the grinding wheel device (4) processes a workpiece (6), and the workpiece clamping device (2) clamps the workpiece (6) to correspond to the grinding wheel device (4);

the structure of the grinding wheel device (4) is as follows: including being square grinding frame layer board (407), the top of grinding frame layer board (407) is provided with first emery wheel seat (403) and second emery wheel seat (404), first emery wheel seat (403) with the lateral part of second emery wheel seat (404) is opened there is the through-hole, first emery wheel axle (405) and second emery wheel axle (406) are installed to the inside cooperation of through-hole, first emery wheel axle (405) with the axle center of second emery wheel axle (406) is high equally, coarse grinding emery wheel (401) are installed at the axle head of first emery wheel axle (405), accurate grinding emery wheel (402) are installed at the axle head of second emery wheel axle (406).

2. A coarse and fine grinding integrated numerically controlled thread grinder as set forth in claim 1, wherein: the rough grinding wheel (401) is made of diamond.

3. A coarse and fine grinding integrated numerically controlled thread grinder as set forth in claim 1, wherein: the side part of the base (1) is provided with a circular through hole.

4. A coarse and fine grinding integrated numerically controlled thread grinder as set forth in claim 1, wherein: the roller device (3) has the structure that: including fixed gyro wheel bottom plate (301) with work piece clamping device (2), gyro wheel bottom plate (301) are fan-shaped, and gyro wheel regulating plate (302) are installed to the lateral part of gyro wheel bottom plate (301), gyro wheel seat (305) are fixed to the lateral part of gyro wheel regulating plate (302), the lateral part of gyro wheel seat (305) is opened there is the through-hole, roller shaft (304) are installed to the inside cooperation of through-hole, buddha's warrior attendant gyro wheel (303) are fixed at the axle head of roller shaft (304).