CN217530107U

CN217530107U - Trepanning machine clamp

Info

Publication number: CN217530107U
Application number: CN202221559876.6U
Authority: CN
Inventors: 宋甫德; 陈厚国
Original assignee: Ningbo Jiangbei Jingyuan Machinery Equipment Factory
Current assignee: Ningbo Jiangbei Jingyuan Machinery Equipment Factory
Priority date: 2022-06-21
Filing date: 2022-06-21
Publication date: 2022-10-04
Anticipated expiration: 2032-06-21

Abstract

The utility model discloses a trepanning machine anchor clamps draws together sleeve, main shaft, chuck, jack catch assembly, sliding sleeve and cylinder, and in the aforementioned sleeve was located to the main shaft with rotating, the chuck was located coaxial commentaries on classics and can be followed the axial displacement of main shaft in the main shaft, was equipped with clamping device between chuck and the main shaft, and chuck afterbody department still is equipped with the dog, and the main shaft tail end is located to the jack catch assembly, and the cylinder setting can drive the push pedal and remove and then drive the sliding sleeve and slide along the main shaft when the cylinder actuated in the push pedal. Compared with the prior art, the utility model has the advantages of: the cylinder is arranged on the push plate in an inverted mode, the output end of the cylinder can push the push plate and further push the sliding sleeve to slide along the main shaft, the space occupied by installation is small due to the fact that the cylinder is compact and small in size, the cylinder can be arranged on a multi-station trepanning machine, and the actuating portion of the clamping jaw is directly driven through the conical surface arranged on the sliding sleeve, so that response of the cylinder is quicker.

Description

Trepanning machine clamp

Technical Field

The utility model relates to a machining anchor clamps, concretely relates to trepanning machine anchor clamps of processing axle class spare part.

Background

The hole machining can be performed by sleeving, polishing, grinding and the like, and the corresponding machining equipment comprises a trepanning machine, a punching machine and an edge grinding machine, for example, the trepanning machine is mainly used for precise trepanning of brittle and hard materials such as magnetic materials, semiconductor materials, glass and the like. In order to improve efficiency, a multi-station trepanning machine is already provided, and the trepanning machine in the prior art mainly structurally comprises a clamping device for clamping and rotating a workpiece to be machined, for example, a Chinese utility model patent with the application number of ZL201821445277.5 (with the publication number of CN 209350629U) discloses a single-station trepanning machine which comprises a workpiece positioning mechanism; a trepanning mechanism; the feeding adjusting mechanism is connected with the trepanning mechanism and drives the trepanning mechanism to move along a straight line, the feeding adjusting mechanism can adjust the centrality of the trepanning mechanism, the trepanning driving mechanism is connected with the workpiece positioning mechanism and drives a workpiece to rotate, and the workpiece clamping device has the following defects that: the clamping devices are too complicated, the sensitivity of the clamping devices is not high enough, the response speed is low, in addition, the installation mode of a driving source required for driving the clamping devices is not compact enough, the occupied space of the clamping devices is too large, and the clamping devices are not suitable for multi-station trepanning machines.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a trepanning machine anchor clamps compact structure, installation space are little, the response is rapid is provided to above-mentioned technical current situation.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the trepanning machine clamp comprises

A sleeve;

the main shaft is provided with a through hole in an axial penetrating manner and can be rotatably arranged in the sleeve, and two end parts of the main shaft are respectively exposed out of two ends of the sleeve;

the chuck is arranged in the through hole, coaxially rotates along with the main shaft and can move along the axial direction of the main shaft, two end parts of the chuck are exposed out of two ends of the main shaft, a clamping device is arranged between the chuck and the main shaft and can clamp the chuck when the chuck moves, and a stop block is further arranged at the tail part of the chuck;

the jaw assembly is arranged at the tail end of the main shaft and is provided with an actuating part which can push the stop block to move so as to drive the chuck to move;

the sliding sleeve is sleeved outside the main shaft in a sliding manner, and the outer side wall of the sliding sleeve is provided with a conical surface which can drive the jaw assembly to further drive the chuck to move when the sliding sleeve moves;

the sliding sleeve is rotatably arranged on the push plate, and the push plate can push the sliding sleeve to slide along the main shaft; and

the cylinder can drive the push plate to move so as to drive the sliding sleeve to move.

In order to better clamp the workpiece to be machined, preferably, the clamping device includes an inner conical surface arranged at the end of the through hole and capable of contracting from outside to inside, an outer conical surface arranged at the outer side of the chuck head and capable of adapting to the inner conical surface, an accommodating cavity arranged at the chuck head and capable of accommodating the workpiece to be machined, and a crack arranged between the outer side of the chuck head and the accommodating cavity and capable of penetrating through each other, wherein the outer conical surface is located at the outer side of the accommodating cavity, the accommodating cavity is used for accommodating the workpiece to be machined, and when the chuck moves, the crack is extruded under the mutual matching of the inner conical surface and the outer conical surface, so that the volume of the accommodating cavity is contracted, and the workpiece to be machined can be clamped.

In order to facilitate the processing and assembly of the chuck, and further to adjust the distance between the chuck and the stop block at any time, preferably, the chuck comprises an upper chuck located at the top of the chuck, a pull tube connected to the tail of the upper chuck, and an adjusting nut, and the adjusting nut is in threaded connection with the tail of the pull tube to form the stop block with an adjustable position.

In order to facilitate the pushing of the push plate by the cylinder, the sleeve is fixedly arranged on a workbench, the fixed end of the cylinder is arranged on the push plate, and the free end of the cylinder penetrates through the push plate and then is connected with the workbench.

In order to realize that the installation position of the claw on the main shaft can be adjusted, so that the sensitivity of claw actuation is enhanced, further, the claw assembly is in threaded connection with the tail end of the main shaft, and the sliding sleeve is provided with a conical surface which can push the claw of the claw assembly to expand outwards so as to trigger the actuation part of the claw assembly to move.

In order to make the rotation of the main shaft smoother and more stable, preferably, a bearing is arranged in the sleeve, and the main shaft is mounted on the bearing.

For safety and also for dust protection, it is preferred that a protective cap is further provided at the end of the sleeve, which protective cap can cover the gap formed between the sleeve and the spindle.

In order to make it more convenient for the external driving source to drive the main shaft to rotate, it is preferable that the main shaft is provided with a gear, and the gear is driven by the external driving source to rotate so as to drive the main shaft to rotate.

Compared with the prior art, the utility model has the advantages of: the cylinder is arranged on the push plate in an inverted mode, the output end of the cylinder can push the push plate and further push the sliding sleeve to slide along the main shaft, the space occupied by installation is small due to the fact that the cylinder is compact and small in size, the cylinder can be arranged on a multi-station trepanning machine, and the actuating portion of the clamping jaw is directly driven through the conical surface arranged on the sliding sleeve, so that response of the cylinder is quicker.

Drawings

FIG. 1 is a schematic structural diagram of the present embodiment;

FIG. 2 is an exploded view of the present embodiment;

FIG. 3 is a schematic sectional view of the present embodiment;

FIG. 4 is a schematic sectional view of the chuck of the present embodiment in a clamped state;

fig. 5 is a perspective view of the chuck of the present embodiment.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 5, the preferred embodiment of the present invention is shown. The trepanning machine clamp of the embodiment specifically comprises a sleeve 1, a main shaft 2, a chuck 3, a jaw assembly 4, a sliding sleeve 5, an air cylinder 6, a push plate 63, a workbench 7, a bearing 8, a protective cover 9 and the like.

Referring to fig. 1 and 2, a spindle 2 is rotatably disposed in a sleeve 1, the spindle 2 is axially provided with a through hole 21 through which a through hole 21 penetrates, two ends of the spindle 2 are respectively exposed at two ends of the sleeve 1, a bearing 8 is disposed in the sleeve 1, the spindle 2 is mounted on the bearing 8, a collet 3 is disposed in the through hole 21 and coaxially rotates with the spindle 2, the collet 2 is capable of moving in an axial direction of the spindle 2, two ends of the collet 3 are also exposed at two ends of the spindle 2, a clamping device is disposed between the collet 3 and the spindle 2 and capable of clamping when the collet 3 moves, the clamping device includes an inner conical surface 22 disposed at the end of the through hole 21 and contracting from outside to inside, an outer conical surface 311 disposed outside the head of the collet 3 and capable of fitting the inner conical surface, a receiving cavity 312 disposed at the head of the collet 3 and capable of receiving a workpiece 10, and a slit 313 disposed between the outside the head of the collet 3 and the receiving cavity 312 and penetrating each other, the outer conical surface 311 is located outside the receiving cavity 312 and capable of receiving the workpiece 10, and when the collet 3 moves, the inner conical surface and the outer conical surface and the slit 313 are matched with each other, the receiving cavity, so that the receiving cavity is squeezed, thereby the receiving cavity 312 is capable of being capable of contracting, thereby causing the volume to be squeezed.

As shown in fig. 5, the chuck 3 in this embodiment includes an upper chuck 31 at the top of the chuck 3, a pull tube 32 connected to the rear portion of the upper chuck 31, and an adjusting nut 33, the adjusting nut 33 is screwed to the rear portion of the pull tube 32 to form a position adjustable stopper, of course, if the machining conditions allow, the upper chuck 31, the pull tube 32 and the adjusting nut may be integrally formed to reduce the assembling process.

The jaw assembly 4 is disposed at the tail end of the main shaft 2, the sliding sleeve 5 is slidably sleeved outside the main shaft 2 and is adjacent to the jaw assembly 4, in this embodiment, the jaw assembly adopts a three-jaw assembly in the prior art, a conical surface 51 is disposed on an outer side wall of the sliding sleeve 5, and the conical surface 51 can drive the actuating portion 41 of the jaw assembly 4 to move when the sliding sleeve 5 moves, so as to drive the adjusting nut 33 of the chuck 3 to move, thereby clamping the clamping device.

Referring to fig. 1, in this embodiment, the sliding sleeve 5 is rotatably disposed on the push plate 63, the sleeve 1 is fixedly disposed on a workbench 7, the fixed end 61 of the cylinder 6 is inversely installed on the push plate 63, the free end 62 of the cylinder 6 penetrates through the push plate 63 and then is connected to the workbench 7, because the workbench 7 is fixed, when the periphery of the free end 62 of the cylinder 6 is pushed, the push plate 63 starts to move under an opposite acting force to drive the sliding sleeve 5 to move, and further drive the actuating portion 41 of the jaw assembly 4 to move, so as to finally clamp the clamping device.

Referring to fig. 3 and 4, a protective cover 9 is further disposed at an end of the sleeve 1, the protective cover 9 can cover a gap formed between the sleeve 1 and the spindle 2, so that the protective cover has higher safety and can also be well dustproof, a gear 23 is disposed on the spindle 2, and the gear 23 is driven by an external power source to rotate so as to drive the spindle 2 to rotate.

The working principle of the trepanning machine clamp in the embodiment is as follows: the workpiece 10 to be machined is placed into the accommodating cavity 312 of the upper chuck 31, the driving cylinder 6 drives the push plate 63 to move, the push plate 63 drives the sliding sleeve 5 to move, the conical surface 51 of the sliding sleeve 5 can drive the actuating part 41 of the jaw assembly 4 to move when the sliding sleeve 5 moves so as to drive the adjusting nut 33 of the chuck 3 to move downwards, and under the mutual matching of the inner conical surface 22 of the spindle 2 and the outer conical surface 311 of the upper chuck 31, the crack 313 on the upper chuck 31 can be extruded so as to cause the volume of the accommodating cavity 312 to be contracted, thereby clamping the workpiece 10 to be machined.

Claims

1. A trepanning machine clamp is characterized by comprising

A sleeve (1);

the main shaft (2) is provided with a through hole (21) in an axial penetrating manner and can be rotatably arranged in the sleeve (1), and two end parts of the main shaft (2) are respectively exposed out of two ends of the sleeve (1);

the chuck (3) is arranged in the through hole (21) and coaxially rotates along with the spindle (2), and can move along the axial direction of the spindle (2), two end parts of the chuck (3) are exposed out of two ends of the spindle (2), a clamping device is arranged between the chuck (3) and the spindle (2), the clamping device can clamp when the chuck (3) moves, and a stop block is further arranged at the tail part of the chuck (3);

the jaw assembly (4) is arranged at the tail end of the main shaft (2), and the jaw assembly (4) is provided with an actuating part (41) which can push the stop block to move so as to drive the chuck (3) to move;

the sliding sleeve (5) is sleeved outside the main shaft (2) in a sliding manner, a conical surface (51) is arranged on the outer side wall of the sliding sleeve, and the conical surface (51) can drive the jaw assembly (4) to further drive the chuck (3) to move when the sliding sleeve (5) moves;

the sliding sleeve (5) is rotatably arranged on the push plate (63), and the push plate (63) can push the sliding sleeve (5) to slide along the main shaft (2); and

and the cylinder (6) can drive the push plate (63) to move so as to drive the sliding sleeve (5) to move.

2. The trepanning machine clamp according to claim 1, characterized in that the clamping device comprises an inner conical surface (22) which is arranged at the end of the through hole (21) and shrinks from outside to inside, an outer conical surface (311) which is arranged at the outer side of the head of the chuck (3) and can be matched with the inner conical surface, a containing cavity (312) which is arranged at the head of the chuck (3) and can contain a workpiece to be machined, and a crack (313) which is arranged between the outer side of the head of the chuck (3) and the containing cavity (312) and penetrates through the containing cavity (312), wherein the outer conical surface (311) is positioned at the outer side of the containing cavity (312).

3. A trepanning machine clamp according to claim 2, characterized in that the chuck (3) comprises an upper chuck (31) at the top of the chuck (3), a pull tube (32) connected to the tail of the upper chuck (31), and an adjusting nut (33), wherein the adjusting nut (33) is screwed to the tail of the pull tube (32) to form a stop block with adjustable position.

4. A trepanning machine clamp according to any one of claims 1 to 3, characterised in that the sleeve (1) is fixedly arranged on a working table (7), the fixed end (61) of the cylinder (6) is mounted on the push plate (63), and the free end (62) of the cylinder (6) passes through the push plate (63) and then is connected with the working table (7).

5. A trepanning machine clamp according to claim 4, characterized in that the jaw assembly (4) is in threaded connection with the tail end of the main shaft (2), and the sliding sleeve (5) is provided with a conical surface (51) capable of pushing the jaws (42) of the jaw assembly (4) to expand outwards so as to trigger the actuating portion (41) of the jaw assembly to move.

6. A trepanning machine clamp according to claim 5, characterised in that a bearing (8) is arranged in the sleeve (1), and the main shaft (2) is mounted on the bearing (8).

7. A trepanning machine clamp according to claim 6, characterised in that a protective cover (9) is further provided at the end of the sleeve (1), the protective cover (9) being able to cover the gap formed between the sleeve (1) and the spindle (2).

8. A trepanning machine clamp according to claim 7, characterized in that the main shaft (2) is provided with a gear (23), and the gear (23) is driven by an external power source to rotate so as to drive the main shaft (2) to rotate.