CN213317725U

CN213317725U - Centre for machining

Info

Publication number: CN213317725U
Application number: CN202022299002.9U
Authority: CN
Inventors: 蔡春堂
Original assignee: Sichuan Vocational and Technical College
Current assignee: Sichuan Vocational and Technical College
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2021-06-01
Anticipated expiration: 2030-10-15

Abstract

The utility model provides a machining is top relates to the top technical field of machining, including working rod, top body and fixing device, top body is close to the one end fixedly connected with connecting rod of working rod, the working rod is close to the one end of connecting rod and has seted up the circular slot, and the inside of circular slot is provided with fixing device, fixing device includes the disk, the surface of disk and the inner wall sliding connection of working rod, the disk is close to the one end rotation of circular slot and is connected with the fixed block, the fixed block is kept away from the one end fixedly connected with telescopic link of disk. The utility model discloses, through setting up fixing device, it is generally fixed through the screw to have solved traditional top with trading, and the screw can take place to relax under long-time use, can lead to the in-process of top use to appear rocking, causes the damage to parts processing, screw in use probably appears skidding or rustting moreover, causes the installation to dismantle inconvenient problem.

Description

Centre for machining

Technical Field

The utility model relates to a top technical field of machining especially relates to a machining is with top.

Background

The center is a machine tool part in machining, has the characteristics of small outer diameter, fewer interference cutters, suitability for high-rotating-speed and medium-degree cutting and the like, and comprises a fixed center and a sliding center. The fixed centre can support parts with complex end surfaces and parts which do not allow a central hole to be drilled, and the centre mainly comprises an ejector pin, a clamping device, a shell, a fixed pin, a bearing and a mandrel.

It is top often used in machining, top can take place certain loss under long-time use, and different parts machining probably need use different top, consequently top need carry out frequent with changing, but traditional top is generally fixed through the screw with changing, and the screw can take place to relax under long-time use, can lead to the in-process of top use to appear rocking, cause the damage to spare part processing, screw in use probably appears skidding or rustting, it is inconvenient to cause the installation to dismantle.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a tip for machining.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a tip for machining comprises a working rod, a tip body and a fixing device, wherein a connecting rod is fixedly connected to one end, close to the working rod, of the tip body, a round groove is formed in one end, close to the connecting rod, of the working rod, a fixing device is arranged inside the round groove, the fixing device comprises a round block, the surface of the round block is in sliding connection with the inner wall of the working rod, one end, close to the round groove, of the round block is rotatably connected with a fixed block, a telescopic rod is fixedly connected to one end, far away from the round block, of the fixed block, the end, far away from the fixed block, of the telescopic rod is fixedly connected with the round groove, a first spring is sleeved on the surface of the telescopic rod, the two ends of the first spring are fixedly connected with the fixed block and the round groove respectively, a fixed cylinder is fixedly connected to the port, close to the round block, the top fixedly connected with pull ring of inserted bar, the surface cover of inserted bar has the second spring, the both ends of second spring respectively with pull ring, solid fixed cylinder fixed connection, the surface cover of connecting rod has the knob, and the surface and the knob fixed connection of connecting rod to the connecting rod is close to two lugs of one end fixedly connected with of solid fixed cylinder.

Preferably, the round block is provided with a limiting groove at one side close to the lug and at two sides of the fixed cylinder, and the size of the limiting groove is matched with that of the lug.

Preferably, the surface of the round block is provided with a through hole, and the size of the through hole is matched with that of the inserted rod.

Preferably, the fixed cylinder is internally provided with a containing groove, and the size of the containing groove is matched with that of the bump.

Preferably, a groove is formed in the knob, an auxiliary device is arranged in the groove, the auxiliary device comprises a protective cover, the surface of the protective cover is in sliding connection with the knob, the size of the protective cover is matched with that of the center body, two sliding blocks are fixedly connected to the surface of the protective cover, two sliding grooves are formed in the surface of the connecting rod, the protective cover is in sliding connection with the connecting rod through the two sliding blocks, a first pressing block is fixedly connected to the top of the sliding block, a long groove is formed in the knob opposite to the surface of the first pressing block, the surface of the first pressing block is in sliding connection with the long groove, a clamping block is slidably connected to the inside of the long groove, a second pressing block is fixedly connected to the top of the clamping block, an arc-shaped groove is formed in the surface of the knob opposite to the second pressing block, the surface of the second pressing block is in sliding connection with the, one end, far away from the clamping block, of the spring piece is fixedly connected with the knob, one end, far away from the second pressing block, of the first pressing block is fixedly connected with a third spring, the third spring is located inside the long groove, and one end, far away from the first pressing block, of the third spring is fixedly connected with the long groove of the knob.

Preferably, one end of the clamping block, which is far away from the spring piece, is provided with a smooth curved surface, and the curved surface faces the first pressing block.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. in the utility model, by arranging the fixing device, the knob is held by hand, the lug end of the connecting rod is extended into the limiting groove of the fixing cylinder by the knob and is mutually clamped with the limiting groove on the surface of the round block, then the round block is extruded to extrude the fixing block, the fixing block extrudes the first spring, thereby the first spring is contracted, the round block and the fixing block can be moved after the first spring is contracted, then the rotary force is applied to the knob, the connecting rod drives the round block to rotate by the lug, under the action of the first spring, the round block drives the lug to extend into the accommodating groove of the fixing cylinder, the lug and the connecting rod are preliminarily fixed by the accommodating groove, then the inserting rod is inserted, under the action of the second spring, the inserting rod is inserted into the round hole of the round block by the fixing cylinder, the round block is fixed, thereby the lug and the connecting rod are secondarily fixed, the fixing of the top body is more convenient and faster, and avoided the screw skid with rust the dismantlement installation difficulty that causes, when dismantling, the step can be dismantled top body more than the reverse operation, it generally fixes through the screw to have solved traditional top with trading, and the screw can take place to relax under long-time use, can lead to the in-process of top use to appear rocking, cause the damage to the processing of spare part, screw in use probably appears skidding or rustting moreover, cause the installation to dismantle inconvenient problem.

2. The utility model discloses in, through setting up auxiliary device, it is top can produce a large amount of heats because of the friction after using, if dismantle the apex body of apex this moment and possibly scald the staff, promote first according to the piece this moment, first according to the piece drive slider and protection casing remove, shelter from the apex body, pass through the fixture block with first according to the piece, utilize the fixture block to fix first according to the piece, can conveniently dismantle the step, and can not touch apex body, when not needing the protection casing, promote the second according to the piece, the second can drive the fixture block shrink according to the piece, make the fixture block do not act on first according to the piece again, first the inside of being pulled back the elongated slot under the effect of third spring this moment according to the piece, thereby pull back the inside of knob with the protection casing, thereby reach and protect the apex body of apex, avoid hindering the emergence of people's incident.

Drawings

Fig. 1 is a schematic perspective view of a machining center according to the present invention;

fig. 2 is an exploded view of fig. 1 in a machining center according to the present invention;

fig. 3 is a side view of fig. 2 of a machining center according to the present invention;

fig. 4 is a schematic view of a part of the structure of an auxiliary device in a machining center according to the present invention;

fig. 5 is the utility model provides an internal structure schematic diagram of auxiliary device's knob in top for machining.

Illustration of the drawings: 1. a working lever; 2. a tip body; 3. a connecting rod; 4. a fixing device; 41. a first spring; 42. a fixed block; 43. a round block; 44. a fixed cylinder; 45. inserting a rod; 46. a second spring; 47. a pull ring; 48. a knob; 49. a bump; 5. an auxiliary device; 51. a slider; 52. a third spring; 53. a first tile; 54. a spring plate; 55. a clamping block; 56. a second tile; 57. a shield.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations of the specific embodiments of the present disclosure.

Embodiment 1, as shown in fig. 1-5, the utility model provides a top for machining, including working rod 1, top body 2 and fixing device 4, top body 2 is close to the one end fixedly connected with connecting rod 3 of working rod 1, and the circular slot has been seted up to the one end that working rod 1 is close to connecting rod 3.

The specific arrangement and function of the fixing means 4 and the auxiliary means 5 will be described in detail below.

As shown in fig. 2 and 3, a circular groove is formed at one end of the working rod 1 close to the connecting rod 3, a fixing device 4 is arranged inside the circular groove, the fixing device 4 comprises a circular block 43, the surface of the circular block 43 is slidably connected with the inner wall of the working rod 1, one end of the circular block 43 close to the circular groove is rotatably connected with a fixing block 42, one end of the fixing block 42 far away from the circular block 43 is fixedly connected with a telescopic rod, one end of the telescopic rod far away from the fixing block 42 is fixedly connected with the circular groove, a first spring 41 is sleeved on the surface of the telescopic rod, two ends of the first spring 41 are respectively fixedly connected with the fixing block 42 and the circular groove, a fixing cylinder 44 is fixedly connected with a port of the working rod 1 close to the circular block 43, a through hole is formed on the surface of the fixing cylinder 44, an inserting rod 45 is inserted inside the through hole, a pull ring 47 is fixedly connected to the top of the inserting rod 45, fixed cylinder 44 fixed connection, the surface cover of connecting rod 3 has knob 48, and the surface and the knob 48 fixed connection of connecting rod 3, and connecting rod 3 is close to two lugs 49 of one end fixedly connected with of fixed cylinder 44, the spacing groove has all been seted up to one side that round piece 43 is close to lug 49 and the both sides of fixed cylinder 44, and the size of spacing groove and the size looks adaptation of lug 49, the through-hole has been seted up on the surface of round piece 43, and the size of through-hole and the size looks adaptation of inserted bar 45, the holding tank has been seted up to the inside of fixed cylinder 44, and the size of holding tank and the size looks adaptation of lug 49.

The whole fixing device 4 achieves the effects that by arranging the fixing device 4, the knob 48 is held by hand, the lug 49 end of the connecting rod 3 extends into the limiting groove of the fixing cylinder 44 through the knob 48 and is clamped with the limiting groove on the surface of the round block 43 at the same time, then the round block 43 is extruded, the round block 43 extrudes the fixing block 42, the fixing block 42 extrudes the first spring 41, thereby the first spring 41 is contracted, the round block 43 and the fixing block 42 can move after the first spring 41 is contracted, then the rotary force is applied to the knob 48, the connecting rod 3 drives the round block 43 to rotate through the lug 49, under the action of the first spring 41, the round block 43 drives the lug 49 to extend into the accommodating groove of the fixing cylinder 44, the lug 49 and the connecting rod 3 are primarily fixed by utilizing the accommodating groove, then the inserting rod 45 is inserted, under the action of the second spring 46, the inserting rod 45 is inserted into the round hole of the round block 43 through the fixing cylinder 44, fix the disk 43, thereby carry out the secondary to lug 49 and connecting rod 3 and fix, make top body 2 fixed convenient and fast more, and avoided skidding and rusty dismantlement installation difficulty that causes of screw, when dismantling, the above step of reverse operation can be dismantled top body 2, it is generally fixed through the screw to have solved traditional top with trading, and the screw can take place to relax under long-time use, can lead to the in-process appearance of top use to rock, cause the damage to spare part processing, and screw in use probably appears skidding or rustting, cause the installation to dismantle inconvenient problem.

As shown in fig. 4 and 5, a groove is formed inside the knob 48, an auxiliary device 5 is arranged inside the groove, the auxiliary device 5 includes a protective cover 57, the surface of the protective cover 57 is slidably connected with the knob 48, the size of the protective cover 57 is matched with the center body 2, two sliders 51 are fixedly connected to the surface of the protective cover 57, two sliding grooves are formed on the surface of the connecting rod 3, the protective cover 57 is slidably connected with the connecting rod 3 by means of the two sliders 51, a first pressing block 53 is fixedly connected to the top of the slider 51, a long groove is formed on the knob 48 relative to the surface of the first pressing block 53, the surface of the first pressing block 53 is slidably connected with the long groove, a clamping block 55 is slidably connected inside the long groove, a second pressing block 56 is fixedly connected to the top of the clamping block 55, an arc-shaped groove is formed on the surface of the knob 48 relative to the second pressing block 56, and the surface, a spring leaf 54 is fixedly connected to one end of the clamping block 55 far away from the long groove, one end of the spring leaf 54 far away from the clamping block 55 is fixedly connected with the knob 48, one end of the first pressing block 53 far away from the second pressing block 56 is fixedly connected with a third spring 52, the third spring 52 is located in the long groove, one end of the third spring 52 far away from the first pressing block 53 is fixedly connected with the long groove of the knob 48, one end of the clamping block 55 far away from the spring leaf 54 is set to be a smooth curved surface, and the curved surface faces the first pressing block 53.

The whole auxiliary device 5 achieves the effect that through the arrangement of the auxiliary device 5, the center generates a large amount of heat due to friction after being used, at the moment, if a worker can be scalded when the center body 2 is disassembled, at the moment, the first pressing block 53 is pushed, the first pressing block 53 drives the sliding block 51 and the protective cover 57 to move to shield the center body 2, the first pressing block 53 passes through the clamping block 55, the first pressing block 53 is fixed by the clamping block 55, the disassembling step can be conveniently carried out, the center body 2 cannot be touched, when the protective cover 57 is not needed, the second pressing block 56 is pushed, the second pressing block 56 drives the clamping block 55 to shrink, so that the clamping block 55 does not act on the first pressing block 53 any more, at the moment, the first pressing block 53 is pulled back to the inside of the long groove under the action of the third spring 52, so that the protective cover 57 is pulled back to the inside of the knob 48, thereby protecting the center body 2, avoiding the occurrence of injuring accidents.

The whole working principle is that by arranging the fixing device 4, holding the knob 48 by hand, extending the end of the lug 49 of the connecting rod 3 into the limiting groove of the fixing cylinder 44 through the knob 48 and simultaneously clamping with the limiting groove on the surface of the round block 43, then extruding the round block 43 to enable the round block 43 to extrude the fixing block 42, the fixing block 42 extrudes the first spring 41, thereby enabling the first spring 41 to shrink, the round block 43 and the fixing block 42 to move after the first spring 41 shrinks, then applying rotating force to the knob 48 to enable the connecting rod 3 to drive the round block 43 to rotate through the lug 49, under the action of the first spring 41, the round block 43 with the lug 49 stretches into the accommodating groove of the fixing cylinder 44, primarily fixing the lug 49 and the connecting rod 3 through the accommodating groove, then inserting the inserting rod 45, under the action of the second spring 46, the inserting rod 45 is inserted into the round hole of the round block 43 through the fixing cylinder 44, the round block 43 is fixed, so that the lug 49 and the connecting rod 3 are secondarily fixed, the fixing of the center body 2 is more convenient and quicker, the difficulty in dismounting and mounting caused by the slippage and rusting of the screw is avoided, the center body 2 can be dismounted by reversely operating the steps during dismounting, the problem that the conventional center replacement is generally fixed through the screw, the screw can loosen under long-time use, the shaking can be caused in the using process of the center, the part processing is damaged, the slippage or rusting can be caused when the screw is used, and the inconvenience in mounting and dismounting is caused is solved, the center can generate a large amount of heat due to friction after being used by arranging the auxiliary device 5, at the moment, if the center body 2 is dismounted, a worker can be scalded, at the moment, the first pressing block 53 is pushed, the first pressing block 53 drives the sliding block 51 and the protective cover 57 to move, the tip body 2 is shielded, the first pressing block 53 passes through the clamping block 55, the clamping block 55 is used for fixing the first pressing block 53, the disassembling step can be conveniently carried out, the tip body 2 cannot be touched, when the protective cover 57 is not needed, the second pressing block 56 is pushed, the second pressing block 56 can drive the clamping block 55 to shrink, the clamping block 55 does not act on the first pressing block 53 any more, at the moment, the first pressing block 53 is pulled back to the inside of the long groove under the action of the third spring 52, the protective cover 57 is pulled back to the inside of the knob 48, the tip body 2 is protected, and the human injury is avoided.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a top for machining, includes working rod (1), top body (2) and fixing device (4), its characterized in that: the center is characterized in that one end, close to the working rod (1), of the center body (2) is fixedly connected with a connecting rod (3), one end, close to the connecting rod (3), of the working rod (1) is provided with a circular groove, a fixing device (4) is arranged inside the circular groove, the fixing device (4) comprises a circular block (43), the surface of the circular block (43) is in sliding connection with the inner wall of the working rod (1), one end, close to the circular groove, of the circular block (43) is rotatably connected with a fixing block (42), one end, far away from the circular block (43), of the fixing block (42) of the fixing block (43) of the fixing block, the surface of the telescopic rod is sleeved with a first spring (41), two ends of the first spring (41) are fixedly connected with the fixing block (42) and the circular, the through-hole has been seted up on the surface of solid fixed cylinder (44), and the inside of through-hole is inserted and is equipped with inserted bar (45), the top fixedly connected with pull ring (47) of inserted bar (45), the surface cover of inserted bar (45) has second spring (46), the both ends of second spring (46) respectively with pull ring (47), solid fixed cylinder (44) fixed connection, the surface cover of connecting rod (3) has knob (48), and the surface and the knob (48) fixed connection of connecting rod (3) to connecting rod (3) are close to two lugs (49) of one end fixedly connected with of solid fixed cylinder (44).

2. A machining center according to claim 1, wherein: limiting grooves are formed in one side, close to the protruding block (49), of the round block (43) and the two sides of the fixed cylinder (44), and the size of each limiting groove is matched with that of the protruding block (49).

3. A machining center according to claim 1, wherein: the surface of the round block (43) is provided with a through hole, and the size of the through hole is matched with that of the inserted rod (45).

4. A machining center according to claim 1, wherein: the fixed cylinder (44) is internally provided with an accommodating groove, and the size of the accommodating groove is matched with that of the bump (49).

5. A machining center according to claim 1, wherein: the novel rotary knob is characterized in that a groove is formed in the knob (48), an auxiliary device (5) is arranged in the groove, the auxiliary device (5) comprises a protective cover (57), the surface of the protective cover (57) is in sliding connection with the knob (48), the size of the protective cover (57) is matched with the center body (2), two sliding blocks (51) are fixedly connected to the surface of the protective cover (57), two sliding grooves are formed in the surface of the connecting rod (3), the protective cover (57) is in sliding connection with the connecting rod (3) through the two sliding blocks (51), a first pressing block (53) is fixedly connected to the top of each sliding block (51), a long groove is formed in the surface of the knob (48) opposite to the first pressing block (53), the surface of the first pressing block (53) is in sliding connection with the long groove, a clamping block (55) is connected to the inside of the long groove in a sliding manner, and a second pressing block (56) is fixedly connected, an arc-shaped groove is formed in the surface, opposite to the second pressing block (56), of the knob (48), the surface of the second pressing block (56) is connected with the arc-shaped groove in a sliding mode, a spring piece (54) is fixedly connected to one end, far away from the long groove, of the clamping block (55), one end, far away from the clamping block (55), of the spring piece (54) is fixedly connected with the knob (48), a third spring (52) is fixedly connected to one end, far away from the second pressing block (56), of the first pressing block (53), the third spring (52) is located inside the long groove, and one end, far away from the first pressing block (53), of the third spring (52) is fixedly connected with the long groove of the knob (48).

6. A machining center according to claim 5, wherein: one end of the clamping block (55) far away from the spring piece (54) is provided with a smooth curved surface, and the curved surface faces the first pressing block (53).