CN213438380U

CN213438380U - Clamping device for machining precision die

Info

Publication number: CN213438380U
Application number: CN202021797772.XU
Authority: CN
Inventors: 不公告发明人
Original assignee: Wuxi Honglixin Precision Mould Co ltd
Current assignee: Wuxi Honglixin Precision Mould Co ltd
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2021-06-15
Anticipated expiration: 2030-08-25

Abstract

The utility model discloses a clamping device for processing precision moulds, in particular to the technical field of precision moulds, which comprises a base, wherein the middle part of the upper end of the base is provided with a main groove which is communicated up and down, a slide block is driven to move downwards by utilizing the extrusion of an upper mould, a rack is driven to move upwards by a gear, a clamping plate for clamping a workpiece is rotated inwards by a connecting piece, so that the workpiece is clamped, when the mould extrudes and processes the mould, the clamping plate can be extruded into a side groove by the upper mould, when the processing is finished, the slide block can move upwards by the elastic force of a first spring, the clamping plate can move out of the side groove by the elastic force of a third spring, and the rack can drive the connecting piece and the clamping plate to rotate, so that the clamping plate loosens the workpiece, the workpiece can be easily taken down, thus the problem that the existing clamping device for processing precision moulds can be solved after the workpiece is clamped and processed, the workpiece is not convenient to be taken down from the die.

Description

Clamping device for machining precision die

Technical Field

The utility model relates to an accurate mould technical field especially relates to a clamping device for accurate mould processing.

Background

The mould is used for making the tool of the shaping article, this kind of tool is formed by various parts, different moulds are formed by different parts, it mainly realizes the processing of the article appearance through the change of the physical state of the shaping material, it is the name of "industrial mother".

When the precision die is used for machining a workpiece, the clamping device is needed, the workpiece is prevented from sliding during machining, the workpiece is prevented from being damaged, and the workpiece is inconvenient to take down from the die after the workpiece is clamped and machined by the conventional clamping device.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a clamping device for accurate mould processing has solved current clamping device for accurate mould processing and is pressing from both sides the back of tightly processing with the work piece, takes off very inconvenient problem from the mould with the work piece.

The utility model provides a technical scheme that its technical problem adopted is: a clamping device for processing a precision mold comprises a base, wherein the middle part of the upper end of the base is provided with a main groove which is communicated up and down, the front end and the rear end inside the base and positioned outside the main groove are sequentially provided with a sliding groove, an inner groove and a side groove from outside to inside, the sliding groove and the side groove extend upwards and penetrate out of the upper end of the base, a circular groove is arranged in the base and positioned in the sliding groove and the side groove, the circular grooves are communicated with the sliding grooves and the side grooves, the inner grooves are communicated with the side grooves, the sliding blocks are connected in the sliding grooves in a sliding manner, the upper end of the sliding block is fixedly connected with a pressing piece, the pressing piece extends upwards to form a sliding chute, a first spring is fixedly connected between the bottom of the sliding chute and the bottom of the sliding block, the circular groove is rotatably connected with a gear, a rack is arranged in the inner groove, a clamping plate is arranged in the side groove, and the upper end of the clamping plate extends upwards to form the side groove.

Specifically, the side, close to the gear, of the sliding block is provided with a clamping tooth, the sliding block is meshed with the gear, and the rack is meshed with the gear.

Specifically, two fixing columns which are vertically arranged are fixedly connected to the inner side groove wall of the inner groove, a back groove is formed in one side, away from the gear, of the rack, and the fixing columns are inserted into the back groove and are in sliding connection with the back groove.

The utility model discloses a slide groove, including rack, splint, connecting piece, limiting groove left and right sides, the through-hole that link up around the rack upper end is seted up, inner wall fixedly connected with pivot about the through-hole, splint have seted up the spacing groove by the one end of rack, be provided with the connecting piece between rack and the splint, both ends are outwards extended about the connecting piece inboard, and the connecting piece extends the section end and all rotates and be connected with the bull stick, communicating slide groove has been seted up on the two sides about the connecting piece, splint keep away from the one end of bull stick and insert in the through-hole and make the pivot run through the slide groove, the inboard extension of connecting piece insert the spacing inslot and with spacing groove sliding connection, the bull stick is worn out and.

Specifically, a second spring is fixedly connected between the inner wall of the upper end of the inner groove and the top end of the rack, and a third spring is fixedly connected between the inner wall of the upper end of the limiting groove and the upper end of the connecting piece.

Specifically, the top end of the clamping plate is provided with a notch, and the clamping plate is made of hard rubber.

Compared with the prior art, the utility model discloses the beneficial effect who realizes: this kind of a clamping device for precision mold processing, extrusion through utilizing the last mould, drive the slider downstream, and then drive rack rebound through the gear, the rethread connecting piece makes the splint that are used for pressing from both sides tight work piece rotate to the inboard, thereby with the work piece centre gripping, when mould extrusion processing mould again, splint can be extruded to the side inslot by last mould, and when processing is accomplished, the slider can receive the elasticity rebound of first spring, and splint can receive the side groove of moving out on the elasticity of third spring equally, and then the rack can take connecting piece and splint to rotate, make splint loosen the work piece, thereby can be relaxed take off the work piece, just so can solve current clamping device for precision mold processing after pressing from both sides the work piece tight processing, take off very inconvenient problem with the work piece from the mould.

Drawings

FIG. 1 is a general schematic view of the present invention;

FIG. 2 is a cross-sectional view of the rear end of the base of the present invention;

FIG. 3 is a schematic view of the internal structure of the present invention;

fig. 4 is a rear view of the internal structure of the present invention.

In the figure: the device comprises a base-1, a main groove-2, a pressing piece-3, a clamping plate-4, a sliding groove-5, an inner groove-6, a side groove-7, a sliding block-8, a gear-9, a first spring-10, a rack-11, a through hole-12, a sliding groove-13, a connecting piece-14, a second spring-15, a limiting groove-16, a third spring-17, a rotating rod-18, a back groove-19 and a fixed column-20.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a clamping device for processing a precision mold comprises a base 1, a main groove 2 which is vertically communicated is arranged in the middle of the upper end of the base 1, a sliding groove 5, an inner groove 6 and a side groove 7 are sequentially arranged at the front end and the rear end inside the base 1 and positioned outside the main groove 2 from outside to inside, the sliding groove 5 and the side groove 7 extend upwards and penetrate through the upper end of the base 1, a circular groove is arranged inside the base 1 and positioned inside the sliding groove 5 and the side groove 7, the circular groove is communicated with the sliding groove 5 and the side groove 7, the inner groove 6 is communicated with the side groove 7, a sliding block 8 is slidably connected inside the sliding groove 5, a pressing piece 3 is fixedly connected at the upper end of the sliding block 8, the sliding groove 5 extends upwards, a first spring 10 is fixedly connected between the bottom of the sliding groove 5 and the bottom of the sliding block 8, a gear 9 is rotatably connected inside the circular groove, a rack 11 is arranged inside the inner groove 6, a clamping, a clamping tooth is arranged on one side of the sliding block 8 close to the gear 9, the sliding block 8 is meshed and connected with the gear 9, a rack 11 is meshed and connected with the gear 9, two fixing columns 20 which are arranged up and down are fixedly connected on the inner side of the inner groove 6, a back groove 19 is arranged on one side of the rack 11 far away from the gear 9, the fixing columns 20 are inserted into the back groove 19 and are in sliding connection with the back groove 19, a through hole 12 which is through from front to back is arranged at the upper end of the rack 11, a rotating shaft is fixedly connected with the left inner wall and the right inner wall of the through hole 12, a limiting groove 16 is arranged at one end of the splint 4 close to the rack 11, the left side and the right side of the limiting groove 16 are through, a connecting piece 14 is arranged between the rack 11 and the splint 4, the left end and the right end of the inner side of the connecting piece 14 extend outwards, the extension section at the inner side of the connecting piece 14 is inserted into the limit groove 16 and is in sliding connection with the limit groove 16, the rotating rod 18 penetrates out of the left side and the right side of the limit groove 16 and is fixed with the left side and the right side of the inner wall of the side groove 7, a second spring 15 is fixedly connected between the inner wall of the upper end of the inner groove 6 and the top end of the rack 11, a third spring 17 is fixedly connected between the inner wall of the upper end of the limit groove 16 and the upper end of the connecting piece 14, a notch is arranged at the inner side of the top end;

firstly, the base 1 is sleeved on the outer side of the lower die, the lower die penetrates out of the upper end of the main groove 2, the base 1 is fixed by using a bolt, a workpiece to be processed is placed on the lower die, the edge of the workpiece is abutted against a notch on the clamping plate 4, and then the upper die is started to descend and press the workpiece.

When the upper die moves downwards to the upper end of the pressing part 3, the pressing part 3 is pressed to move downwards, so that the sliding block 8 is driven to slide downwards in the sliding groove 5, meanwhile, the first spring 10 positioned at the lower end of the sliding block 8 is pressed to shrink, the latch at the inner side of the sliding block 8 drives the gear 9 meshed with the sliding block to rotate, the gear 9 rotates to enable the rack 11 to move upwards, the clamping strip 11 is limited by the fixed column 20 and the back groove 19, the clamping strip can move up and down, so that the connecting piece 14 and the rotating rod 18 rotate upwards around the center, and the connecting piece 14 rotates around the rotating rod 18, so that when the rotating rod 18 rotates, the rotating shaft can move back and forth in the sliding groove 13, the rotating rod 18 and the connecting piece 14 are prevented from being clamped, the clamping strip 11 moves upwards to enable the second spring 15 to be pressed to shrink, and the clamping plate 4 is connected with the connecting piece 14 in a sliding manner, the clamping plate 4 rotates along with the connecting piece 14, and the workpiece is clamped by the gap of the clamping plate 4.

When the upper die continues to move downwards, the sliding block 8 continues to move downwards to drive the gear 9 to rotate, further drive the rack 11 to move upwards, finally the clamping plate 4 tightly clamps the workpiece and the angle approaches to 90 degrees, when the upper die is pressed down to the workpiece and extrudes the workpiece, the upper part of the clamping plate 4 is extruded to move downwards to the inside of the side groove 7 and extrude the third spring 17, and the third spring 17 is extruded to contract.

Finally, after the workpiece is extruded and formed by the upper die, the upper die moves back to the original position, the clamping plate 4 is driven by the elastic force of the third spring 17 to move upwards, the sliding block 8 is separated from the extrusion of the upper die and then moves upwards by the elastic force of the first spring 10, the gear 9 rotates to drive the rack 11 to move downwards, meanwhile, the second spring 15 also extrudes the rack 11 to return, and therefore the clamping plate 4 and the connecting piece 14 are pulled by the rack 11 and the elastic force of the second spring 15, the clamping plate 4 and the connecting piece 14 rotate to enable the workpiece to be separated from the clamping of the clamping plate 4 and can be taken down easily.

Claims

1. The utility model provides a clamping device for precision mold processing, includes base (1), its characterized in that: the middle part of the upper end of the base (1) is provided with a main groove (2) which is communicated up and down, the front end and the back end of the inside of the base (1) are positioned outside the main groove (2) and are sequentially provided with a sliding groove (5), an inner groove (6) and a side groove (7) from outside to inside, the sliding groove (5) and the side groove (7) both extend upwards and penetrate through the upper end of the base (1), the sliding groove (5) and the side groove (7) are provided with circular grooves inside the base (1), the circular grooves are communicated with the sliding groove (5) and the side groove (7), the inner groove (6) is communicated with the side groove (7), the sliding groove (5) is internally and slidably connected with a sliding block (8), the upper end of the sliding block (8) is fixedly connected with a pressing piece (3), the sliding groove (5) extends upwards from the pressing piece (3), and a first spring (10) is fixedly connected between the bottom of the sliding groove (5, the circular groove is connected with a gear (9) in a rotating mode, a rack (11) is arranged inside the inner groove (6), a clamping plate (4) is arranged inside the side groove (7), and the side groove (7) extends upwards from the upper end of the clamping plate (4).

2. A clamping device for precision mold tooling as set forth in claim 1 wherein: the sliding block (8) is provided with a clamping tooth at one side close to the gear (9), the sliding block (8) is meshed with the gear (9), and the rack (11) is meshed with the gear (9).

3. A clamping device for precision mold tooling as set forth in claim 1 wherein: two fixing columns (20) which are vertically arranged are fixedly connected to the inner side groove wall of the inner groove (6), a back groove (19) is formed in one side, away from the gear (9), of the rack (11), and the fixing columns (20) are inserted into the back groove (19) and are in sliding connection with the back groove (19).

4. A clamping device for precision mold tooling as set forth in claim 1 wherein: the upper end of the rack (11) is provided with a through hole (12) which is through from front to back, the left inner wall and the right inner wall of the through hole (12) are fixedly connected with a rotating shaft, one end of the splint (4) close to the rack (11) is provided with a limit groove (16), the left side and the right side of the limiting groove (16) are communicated, a connecting piece (14) is arranged between the rack (11) and the clamping plate (4), the left end and the right end of the inner side of the connecting piece (14) extend outwards, the tail ends of the extension sections of the connecting pieces (14) are respectively and rotatably connected with a rotating rod (18), the left and right surfaces of the connecting pieces (14) are provided with communicated sliding grooves (13), one end of the clamping plate (4) far away from the rotating rod (18) is inserted into the through hole (12) and the rotating shaft penetrates through the sliding groove (13), the inner side extension section of the connecting piece (14) is inserted into the limit groove (16) and is connected with the limit groove (16) in a sliding way, the rotating rods (18) penetrate out of the left side and the right side of the limiting groove (16) and are fixed with the left side and the right side of the inner wall of the side groove (7).

5. A clamping device for precision mold tooling as set forth in claim 4 wherein: and a second spring (15) is fixedly connected between the inner wall of the upper end of the inner groove (6) and the top end of the rack (11), and a third spring (17) is fixedly connected between the inner wall of the upper end of the limiting groove (16) and the upper end of the connecting piece (14).

6. A clamping device for precision mold tooling as set forth in claim 1 wherein: the top end inner side of the clamping plate (4) is provided with a notch, and the clamping plate (4) is made of hard rubber.