CN204397598U - Center hole grinder - Google Patents

Abstract

The utility model discloses a center hole grinding machine, which comprises a frame, a rotary clamp device, a tailstock center device and a feeding device; the frame is provided with a feeding device and a discharging device; the rotary clamp device comprises a first movable seat, a clamp head, a motor and a first tip; the tailstock center device comprises a second movable seat, a second center, a second driving mechanism, a handle mechanism and an indicating mechanism; utilize each device through the cooperation, realize automatic feed, material loading, grind and the ejection of compact, and realized that the work piece rotates the top unmovable grinding mode, avoid the appearance of top easy damage phenomenon, do benefit to and improve the grinding technology level, when guaranteeing to grind machining precision and processingquality (reach the nanometer), show reduction processing cost, improve machining efficiency, make the further practicality of grinding technology, be favorable to the popularization and application of grinding technology, promote the precision finishing technique in china, advance manufacturing technology's progress, the competitive strength in the manufacturing field of reinforcing china.

Description

Center hole grinder

technical field

The utility model relates to the technology in the field of workpiece grinding, in particular to a center hole grinding machine.

Background technique

When processing both ends of workpieces such as shafts, it is usually necessary to grind the center hole. At present, the methods of grinding the center hole of the workpiece are mainly manual or artificial auxiliary equipment: the pure manual method is not only low in efficiency, but also expensive. Manpower and low grinding precision are not conducive to batch processing. The method of manual auxiliary equipment generally uses a manipulator to clamp the workpiece, and then drives the drill bit to rotate through the machine, and uses the rotating drill bit to grind the center hole of the clamped workpiece. Although this method is somewhat more efficient than the pure manual method Lifting, however, is still inefficient due to the need for manual loading, and it uses a method in which the workpiece does not move and the drill bit moves, which makes the drill bit easily damaged and affects the grinding accuracy of the product.

Utility model content

In view of this, the utility model aims at the deficiencies in the prior art, and its main purpose is to provide a center hole grinding machine, which can effectively solve the problems of low efficiency and low precision in the existing center hole grinding method.

In order to achieve the above object, the utility model adopts the following technical solutions:

A center hole grinder, comprising a frame, a rotating fixture device, a tailstock top device, and a feeding device; the left and right sides of the frame are respectively provided with a feeding device and a discharging device, and the surface of the frame has a working table , the rotating fixture device and the tailstock top device are respectively arranged on the workbench in front and rear intervals;

The rotary fixture device includes a first movable seat, a fixture head, a motor and a first top; the first movable seat can be moved back and forth on the workbench, and the first movable seat is driven by a first driving mechanism to move forward and backward. The clamp head is rotatably arranged on the first movable seat, the clamp head has a clamping space, the motor is arranged on the first movable seat and drives the clamp head to rotate, the first top is arranged on the first movable seat, the first The tip of the top protrudes into the clamping space, and the first top is arranged coaxially with the rotation center of the fixture head;

The tailstock top device includes a second movable seat, a second top, a second driving mechanism, a handle mechanism and an indicating mechanism; Movably arranged on the second movable seat, the tip of the second top and the tip of the first top face each other, and the tip surface of the second top and the tip surface of the first top are covered with abrasive coating; the first top The second driving mechanism is arranged on the second movable seat and drives the second top to move back and forth. The handle mechanism is arranged on the second movable seat and drives the second top to move back and forth. The two tops are connected to indicate the distance that the second top moves back and forth;

The feeding device is arranged on the workbench and is located between the feeding device and the discharging device. The feeding device includes a gantry, a third movable seat and two manipulators; the gantry is fixed on the workbench, and the third The movable seat can be set on the crossbeam of the gantry horizontally and horizontally. The third movable seat is driven by the third movable mechanism to move back and forth horizontally. The two manipulators are respectively arranged at the left and right ends of the third movable seat. Each manipulator All are driven by a fourth driving mechanism to move up and down.

As a preferred solution, both the feeding device and the discharging device are conveyor belt devices.

As a preferred solution, a slide rail is provided on the workbench, and the slide rail extends forward and backward, and a slide block is provided at the bottom of the first movable seat, and the slide block is installed on the slide rail and moves back and forth along the slide rail.

As a preferred solution, the first drive mechanism includes a motor and a screw, both of which are arranged on the workbench, and the screw is screwed to the first movable seat, and the motor drives the screw to rotate. Two slide rails are arranged in parallel at intervals, and the screw mandrel is located between the two slide rails.

As a preferred solution, a dovetail block is fixed on the workbench, and the second movable seat is mounted on the dovetail block to move back and forth through guide shoes, and the second movable seat is driven by the fifth driving mechanism to move back and forth .

As a preferred solution, the fifth driving mechanism includes a screw rod and a hand wheel, one end of the screw rod is screwed to the second movable seat, and the hand wheel is fixed to the other end of the screw rod.

As a preferred solution, the first movable seat and the second movable seat are provided with brackets for supporting the workpiece, and the two brackets are respectively located at the front side of the first center and the second center.

As a preferred solution, the two brackets are respectively arranged on the first movable seat and the second movable seat so that their positions can be adjusted up and down.

As a preferred solution, the second drive mechanism includes a movable part, a cylinder, a piston and a return spring, a guide groove is arranged in the second movable seat, and the movable part is arranged in the guide groove and connected with the second top to form a Drive the second top to move back and forth in the axial direction, the cylinder is fixed on the second movable seat, one end of the piston extends into the cylinder, the other end of the piston touches one end of the movable part, the return spring is set in the guide groove, resets The two ends of the spring respectively abut between the other end of the movable part and the inner wall of the guide groove.

As a preferred solution, the indicating mechanism includes a housing and a movable indicating member arranged in the housing, the housing is provided with a scale, and the movable indicating member is fixedly connected with the tail end of the second center through the connecting member and follows the second Top back and forth.

Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be known from the above technical solutions:

Through the use of the feeding device, feeding device and discharging device, automatic feeding, loading and discharging are realized, and the two ends of the workpiece are automatically ground separately by using the rotating fixture device and the tailstock top device, which is beneficial to improve The level of grinding technology, while ensuring the grinding precision and processing quality (reaching the nanometer level), significantly reduces the processing cost, improves the processing efficiency, facilitates mass production, makes the grinding technology more practical, and is conducive to the popularization and application of grinding technology. Promote the progress of China's precision processing technology and advanced manufacturing technology, enhance China's competitiveness in the field of processing and manufacturing, and use the fixture head to clamp the workpiece, and cooperate with the motor to drive the fixture head to rotate, realizing the grinding method of the workpiece rotating top and not moving, avoiding The appearance of the tip is easy to be damaged, and the grinding accuracy of the workpiece is greatly improved. At the same time, the equipment can also automatically or manually control the grinding depth, which brings convenience to the operation.

In order to illustrate the structural features and functions of the utility model more clearly, the utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

Fig. 1 is the three-dimensional schematic view of the preferred embodiment of the utility model;

Fig. 2 is a schematic perspective view of another angle of a preferred embodiment of the utility model;

Fig. 3 is the partially enlarged schematic diagram of the preferred embodiment of the present utility model;

Fig. 4 is a schematic diagram of another angle of Fig. 3;

Fig. 5 is an axial sectional view of Fig. 3;

Fig. 6 is the enlarged schematic diagram of feeding device in the preferred embodiment of the present utility model;

Fig. 7 is the enlarged schematic view of the rotary clamp device in a preferred embodiment of the present invention;

Fig. 8 is a schematic diagram of another angle of Fig. 7;

Fig. 9 is an enlarged schematic view of a tailstock top device in a preferred embodiment of the present invention;

Figure 10 is a top view of Figure 9;

Fig. 11 is a sectional view at the A-A position in Fig. 10;

Fig. 12 is a sectional view at the B-B position in Fig. 10;

Fig. 13 is a cross-sectional view at position C-C in Fig. 10 .

Explanation of the accompanying drawings:

10. Rack 11. Workbench

12. Slide rail 13. Dovetail block

20. Rotary fixture device 21. The first movable seat

22. Fixture head 221. Clamping space

23. Motor 24. The first top

25. The first drive mechanism 251. Motor

252. Screw rod 26. Slider

30. Tailstock top device 31. Second movable seat

32. The second top 33. The second driving mechanism

331. Moving parts 332. Cylinder

333. Piston 334. Return spring

34. Handle mechanism 35. Indicating mechanism

351. Shell 352. Activity indicator

353. Connecting piece 36. Guide shoe

37. The fifth driving mechanism 371. Screw rod

372. Hand wheel 301. Guide groove

40. Feeding device 41. Gantry frame

411. Beam 412. Guide rod

42. The third movable seat 43. Manipulator

431. Mechanical clamp 432. Cylinder

44. The fourth driving mechanism 50. Feeding device

60. Discharging device 70. Workpiece

101. Grinding coating 102. Bracket.

Detailed ways

Please refer to shown in Fig. 1 to Fig. 13, and it has shown the concrete structure of the preferred embodiment of the present utility model, comprises frame 10, rotating fixture device 20, tailstock top device 30 and feeding device 40, this machine The left and right sides of the frame 10 are respectively provided with a feeding device 50 and a discharging device 60, and the surface of the frame 10 has a workbench 11, and the rotating clamp device 20 and the tailstock top device 30 are respectively arranged on the workbench 11 at intervals.

Specifically, the rotary clamp device 20 includes a first movable seat 21, a clamp head 22, a motor 23, and a first center point 24; 21 is driven by the first drive mechanism 25 to move back and forth. In this embodiment, the workbench 11 is provided with a slide rail 12 which extends forward and backward. The bottom of the first movable seat 21 is provided with a slide block 26. The slide block 26 is mounted on the slide rail 12 and moves back and forth along the slide rail 12. The first driving mechanism 25 includes a motor 251 and a screw mandrel 252. The motor 251 and the screw mandrel 252 are all arranged on the workbench 11. The rod 252 is screwed to the first movable seat 21, and the motor 251 drives the screw mandrel 252 to rotate. The slide rails 12 are two parallel and spaced apart, and the screw mandrel 252 is located between the two slide rails 12; the clamp head 22 can be Rotatably arranged on the first movable seat 21, the fixture head 22 is used to clamp the workpiece 70, the fixture head 22 has a clamping space 221; the motor 23 is arranged on the first movable seat 21 and drives the fixture head 22 to rotate; The first apex 24 is disposed on the first movable seat 21 , the apex of the first apex 24 protrudes into the clamping space 221 , and the first apex 24 is arranged coaxially with the rotation center of the fixture head 22 .

The tailstock top device 30 includes a second movable seat 31, a second top 32, a second driving mechanism 33, a handle mechanism 34 and an indicating mechanism 35; In this embodiment, the workbench 11 is fixed with a dovetail block 13, and the second movable seat 31 is mounted on the dovetail block 13 through guide shoes 36 to move back and forth, and the second movable seat 31 is driven by the fifth drive mechanism. 37 drives and moves back and forth, specifically, the fifth driving mechanism 37 includes a screw 371 and a hand wheel 372, one end of the screw 371 is screwed to the second movable seat 31, and the hand wheel 372 is fixed on the screw The other end of the rod 371, when in use, drives the screw rod 371 to rotate by turning the hand wheel 372, and the screw rod 371 can drive the second movable seat 31 to move back and forth along the dovetail block 13; the second top 32 can move forward and backward axially is arranged on the second movable seat 31, the tip of the second tip 32 and the tip of the first tip are facing each other, and the tip surface of the second tip 32 and the tip surface of the first tip 24 are covered with abrasive coating 101, so that the second top 32 and the first top 24 are more wear-resistant; the second driving mechanism 33 is arranged on the second movable seat 31 and drives the second top 32 to move back and forth. In this embodiment, the second The driving mechanism 33 includes a movable member 331, a cylinder 332, a piston 333 and a return spring 334. A guide groove 301 is arranged in the second movable seat 31, and the movable member 331 is arranged in the guide groove 301 and connected with the second top 32. And drive the second top 32 to move axially back and forth, the cylinder 332 is fixed on the second movable seat 31, one end of the piston 333 stretches into the cylinder 332, and the other end of the piston 333 is against an end of the movable part 331, the reset The spring 334 is arranged in the guide groove 301, and the two ends of the return spring 334 respectively abut between the other end of the movable part 331 and the inner wall of the guide groove 301; the handle mechanism 34 is arranged on the second movable seat 31 and drives the second top 32 moves back and forth; the indicator mechanism 35 is arranged on the second movable seat 31 and is connected with the second top 32 to indicate the distance length that the second top 32 moves back and forth, so as to facilitate the control of the grinding depth. Specifically, in this embodiment , the indicating mechanism 35 includes a housing 351 and a movable indicating member 352 disposed in the housing 351, the housing 351 is provided with a scale (not shown in the figure), and the movable indicating member 352 is connected to the second tip 32 through the connecting member 353 The tail end is fixedly connected and moves back and forth with the second top 32 .

The feeding device 40 is arranged on the workbench 11 and is located between the feeding device 50 and the discharging device 60. The feeding device 40 includes a gantry 41, a third movable seat 42 and two manipulators 43; the gantry 41 Fixed on the workbench 11, the third movable seat 42 can be arranged on the beam 411 of the gantry frame 41 to move back and forth horizontally. In this embodiment, the beam 411 is provided with a guide rod 412. The third movable seat 42 moves back and forth along the guide rod 412 left and right, and the third movable seat 42 is driven by the third movable mechanism (not shown in the figure) to move back and forth laterally. A manipulator 43 is driven up and down by a fourth drive mechanism 44. In this embodiment, the manipulator 43 includes two mechanical clamps 431 and a cylinder 432. The cylinder 432 drives the two mechanical clamps 431 to open and close. The drive mechanism 44 is a cylinder type drive mechanism.

Both the feeding device 50 and the discharging device 60 are conveyor belt devices, the feeding device 50 is used for conveying workpieces to be ground, and the discharging device 60 is used for conveying finished workpieces.

And, the first movable seat 21 and the second movable seat 31 are all provided with brackets 102 for supporting the workpiece 70, and the two brackets 102 are respectively located at the front side of the first center 24 and the second center 32, in this embodiment In an example, the two brackets 102 are arranged on the first movable seat 21 and the second movable seat 31 so as to be adjustable up and down, so as to adapt to workpieces of different diameters.

The working process of present embodiment is described in detail as follows:

During work, the workpiece to be ground is transported by the feeding device 50 and is close to the feeding device 40. At the same time, the feeding device 40 is working, and the third movable seat 42 is driven by the third driving mechanism to move to the left, and then the most The fourth driving mechanism 44 on the left side drives the leftmost manipulator 43 to move downwards and put it in place. At the same time, the cylinder 432 of the leftmost manipulator 43 impels the two mechanical clamps 431 to open, so that one of the workpieces to be ground is snapped into the two machines. Between the clamps 431, then, the cylinder 432 works again so that the two mechanical clamps 431 are closed to clamp the workpiece 70 to be ground; then, the fourth driving mechanism 44 drives the manipulator 43 to reset upwards, and at the same time, the third driving mechanism works again , so that the third movable seat 42 moves to the right and puts it in place, then, the fourth drive mechanism 44 drives the manipulator 43 to move downward to place the workpiece 70 on the bracket 102, then, the fourth drive mechanism 44 drives the manipulator 43 to reset; then , one end of the workpiece 70 is clamped and fixed by the clamp head 22, and one end of the workpiece 70 stretches into the clamping space and is facing the simplicity of the first top 24, and the other end of the workpiece 70 is facing the tip of the second top 32; then, The motor 23 works to drive the clamp head 22 to rotate, the workpiece 70 rotates with the clamp head 22, the first top 24 and the second top 32 do not rotate and grind the two end faces of the workpiece 70 respectively, by adjusting the first top 24 and the second top The axial position of the two tops 32 can realize the adjustment of the grinding depth. The axial position of the second top 32 can be automatically adjusted by the second driving mechanism 33, and can also be manually adjusted by manually operating the handle mechanism 34. The adjusted position can be adjusted by The indicator mechanism 35 is displayed.

After the grinding is completed, the motor 23 stops rotating, the clamp head 22 releases the workpiece, and the workpiece 70 that has been ground is picked up by the manipulator 43 on the far right and put into the discharge device 60 for discharging. The manipulator 43 on the side clamps another workpiece 70 to be ground from the feeding device 50 and puts it on the bracket 102 to prepare for grinding of a workpiece. This cycle goes on and on to continuously complete the feeding, loading, grinding and discharging of workpieces.

The key points of the design of the utility model are: through the cooperative use of the feeding device, the feeding device and the discharging device, automatic feeding, feeding and discharging are realized, and the joint use of the rotating fixture device and the top end device of the tailstock is used to control the workpiece respectively. Automatic grinding at both ends is conducive to improving the level of grinding technology. While ensuring the grinding precision and processing quality (reaching the nanometer level), it can significantly reduce processing costs and improve processing efficiency, which is conducive to mass production and further practical grinding technology. It is conducive to the promotion and application of grinding technology, promotes the progress of China's precision processing technology and advanced manufacturing technology, and enhances China's competitiveness in the field of processing and manufacturing, and uses the fixture head to clamp the workpiece, and cooperates with the motor to drive the fixture head to rotate, realizing the rotation of the workpiece The non-moving grinding method of the tip avoids the phenomenon that the tip is easily damaged, and greatly improves the grinding accuracy of the workpiece. At the same time, this equipment can also automatically or manually control the grinding depth, which brings convenience to the operation.

The above are only preferred embodiments of the present utility model, and do not limit the technical scope of the present utility model, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present utility model , all still belong to the scope of the technical solution of the utility model.

Claims (10)

1. a centre-hole lapping machine, is characterized in that: include frame, rotation jig device, tailstock centre device and feeding device; The left and right sides of this frame is respectively arranged with feed arrangement and drawing mechanism, and the surface of frame has workbench, and this rotation jig device and tailstock centre device respectively time interval are arranged on workbench;

This rotation jig device includes the first sliding seat, clamp head, motor and first top; This first sliding seat can be arranged on workbench fore-aft travel, first sliding seat is driven and fore-aft travel by the first driving mechanism, this clamp head is arranged in the first sliding seat rotationally, this clamp head has grasping part, this motor to be arranged in the first sliding seat and to drive clamp head to rotate, this first is toply arranged in the first sliding seat, and the first top tip is stretched in grasping part, and first is toply coaxially arranged with the pivot of clamp head;

This tailstock centre device includes the second sliding seat, second top, the second driving mechanism, handle mechanism and indicating mechanism; This second sliding seat can be arranged on workbench fore-aft travel, this second top can before and after be arranged in the second sliding seat axially and movably, this second top tip and aforementioned first top tip are opposite to each other, and the second top tip end surface and the first top tip end surface are all coated with abrasive coating; This second driving mechanism to be arranged in the second sliding seat and to drive the second top front and back movable back and forth, this handle mechanism to be arranged in the second sliding seat and to drive the second top fore-aft travel, and this indicating mechanism to be arranged in the second sliding seat and to indicate the second top movable distance length with the second top connection;

This feeding device is arranged on workbench and between feed arrangement and drawing mechanism, this feeding device includes portal frame, the 3rd sliding seat and two manipulators; This portal frame is fixed on workbench, 3rd sliding seat can be arranged on the crossbeam of portal frame by left and right transverse reciprocating actively, 3rd sliding seat is driven by the 3rd movable device and left and right transverse reciprocating is movable, this two manipulator is arranged at the two ends, left and right of the 3rd sliding seat respectively, and each manipulator is up and down by a four-wheel drive mechanism drives.

2. centre-hole lapping machine according to claim 1, is characterized in that: described feed arrangement and drawing mechanism are conveyer belt apparatus.

3. centre-hole lapping machine according to claim 1, is characterized in that: described workbench is provided with slide rail, extends before and after this slide rail, and the bottom of this first sliding seat is provided with slide block, and this slide block is installed on slide rail and moves around before and after slide rail.

4. centre-hole lapping machine according to claim 3, it is characterized in that: described first driving mechanism includes motor and screw mandrel, this motor and screw mandrel are all arranged on workbench, screw mandrel and the first sliding seat are screwed together, this driven by motor screw mandrel rotates, this slide rail is two that parallel interval is arranged, and this screw mandrel is between two slide rails.

5. centre-hole lapping machine according to claim 1, it is characterized in that: described workbench is installed with dovetails, this second sliding seat can be installed in dovetails by leading boots fore-aft travel, and this second sliding seat is driven by the 5th driving mechanism and front and back are movable back and forth.

6. centre-hole lapping machine according to claim 5, is characterized in that: described 5th driving mechanism includes screw mandrel and handwheel, and one end and second sliding seat of this screw mandrel are screwed together, and this handwheel is fixed on the other end of screw mandrel.

7. centre-hole lapping machine according to claim 1, is characterized in that: described first sliding seat and the second sliding seat are provided with the bracket for holding workpiece, two brackets lay respectively at first top and the second top front side.

8. centre-hole lapping machine according to claim 7, is characterized in that: described two brackets can be arranged to up-down adjustment position in the first sliding seat and the second sliding seat respectively.

9. centre-hole lapping machine according to claim 1, it is characterized in that: described second driving mechanism includes movable part, cylinder, piston and back-moving spring, guide groove is provided with in this second sliding seat, this movable part to be arranged in guide groove and with the second top connection and drive the second tail spindle to movable back and forth, this cylinder is fixed in the second sliding seat, one end of this piston is stretched in cylinder, the other end of this piston is butted on one end of movable part, this back-moving spring is arranged in guide groove, the two ends of back-moving spring are butted between the other end of movable part and the inwall of guide groove respectively.

10. centre-hole lapping machine according to claim 1, it is characterized in that: described indicating mechanism includes shell and is arranged at the movable indication piece in shell, this shell is provided with scale, and this movable indication piece to be fixedly connected with the second top tail end by connector and top movable back and forth with second.