CN217964404U

CN217964404U - Clamping and positioning device for mold

Info

Publication number: CN217964404U
Application number: CN202221599077.1U
Authority: CN
Inventors: 谭志星
Original assignee: Suzhou Jiawang Precision Machinery Co ltd
Current assignee: Suzhou Jiawang Precision Machinery Co ltd
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2022-12-06
Anticipated expiration: 2032-06-24

Abstract

The utility model discloses a centre gripping positioner for mould relates to mould technical field, adopts the locating pin location back for solving current template, demolishs inconveniently, is difficult for changing the problem of template. The positioning pieces are arranged on two sides of the template and are integrally formed with the template; a first semicircular groove provided inside the spacer; the second semicircular groove is arranged on one side of the positioning sheet and is integrally formed with the die holder; a circular pressing block disposed between the first semi-circular groove and the second semi-circular groove.

Description

Clamping and positioning device for mold

Technical Field

The utility model relates to the technical field of mold, specifically be a clamping and positioning device for mould.

Background

The stamping die is a special process device for processing materials into parts in cold stamping processing, the forming effect of the stamping die is mainly determined according to a template, so that the template is usually of a detachable structure and is convenient to replace, and the existing template is usually fixed by a positioning pin;

as publication No. CN102889281A discloses a die holder and fixed locating pin of template for stamping die, include frustum (1), cylinder (2), cylinder (3), cylinder (4) and cylinder (5) from last to connecting gradually down, the inclination of frustum (1) is 70, and the height ratio of frustum (1), cylinder (2), cylinder (3), cylinder (4) and cylinder (5) is 11:8:1:7:5; the diameter ratio of cylinder (2), cylinder (3), cylinder (4) and cylinder (5) is 1.8:2:1:0.8;

however, the existing template is inconvenient to dismantle after being positioned by positioning pins, and the template is not easy to replace; thus, the existing requirements are not met, for which we propose a clamping and positioning device for moulds.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a clamping and positioning device for mould to solve the current template that provides among the above-mentioned background art and adopt the locating pin location back, demolish inconveniently, be difficult for changing the problem of template.

In order to achieve the above object, the utility model provides a following technical scheme: a clamping and positioning device for a die comprises a die holder, wherein a die plate is arranged on the upper surface of the die holder, a notch with a corresponding size is formed in the joint of the die plate and the die holder, a die groove is formed in the die plate, guide post seats are arranged on the periphery of the upper surface of the die holder, and guide posts are arranged at the upper ends of the guide post seats;

further comprising:

the positioning pieces are arranged on two sides of the template and are integrally formed with the template;

a first semicircular groove provided inside the spacer;

the second semicircular groove is arranged on one side of the positioning sheet and is integrally formed with the die holder;

a circular pressing block disposed between the first semi-circular groove and the second semi-circular groove.

Preferably, a ball screw is mounted at the lower end of the circular pressing block, one end of the ball screw penetrates through and extends to the lower end of the die holder, a worm gear is arranged outside the ball screw, a ball screw pair is arranged at the upper end of the worm gear and is in transmission connection with the ball screw, a rotating shaft is mounted inside the die holder, a worm wall is mounted on the outer wall of the rotating shaft, two worm walls are arranged, the rotating shaft is in transmission connection with the ball screw through the worm wall, and a thrust bearing is arranged at the upper end of the ball screw pair.

Preferably, the upper end of the thrust bearing is provided with a guide sleeve.

Preferably, one end of the rotating shaft penetrates through and extends to the outside of the die holder, and the rotating disc is installed on the rotating shaft.

Preferably, a first bearing piece is installed at the joint of the outer wall of one end of the rotating shaft and the die holder, and a second bearing piece is installed at the joint of the other end of the rotating shaft and the die holder.

Preferably, the lower surface of the circular pressing block is provided with a flexible pad, and the flexible pad is connected with the circular pressing block in an adhesion mode.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses an adopt the mode fixed die plate of pressfitting location, at first rotatory carousel during fixed, it is rotatory to drive the pivot, utilize the transmission effect to make two ball screw with and the circular briquetting of upper end shift up, later go into the notch that the die holder was predetermine with the template card, the both sides of template all are provided with the spacer, the spacer respectively is provided with a semicircular groove with the junction of die holder, constitute one with circular briquetting etc. big circular notch, behind the template behind the card, only need the reverse rotation carousel, make circular briquetting move down the card go into this circular notch can accomplish the fixed work of template, whole installation convenient and fast, need not to borrow the instrument, solved current template and adopted the locating pin location back, demolish inconveniently, be difficult for the problem of changing the template.

Drawings

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

fig. 2 is a schematic structural view of the ball screw in a jacking state;

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

in the figure: 1. a die holder; 2. a guide post seat; 3. a guide post; 4. a template; 5. positioning plates; 6. a first semicircular groove; 7. a second semi-circular slot; 8. a circular pressing block; 9. a rotating shaft; 10. a turntable; 11. a first bearing piece; 12. a die cavity; 13. a ball screw; 14. a second bearing plate; 15. a flexible pad; 16. a worm wall; 17. a turbine; 18. a ball screw pair; 19. a thrust bearing; 20. a guide sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, the present invention provides an embodiment: a clamping and positioning device for a die comprises a die holder 1, wherein a template 4 is arranged on the upper surface of the die holder 1, a notch with a corresponding size is formed in the joint of the template 4 and the die holder 1, a die groove 12 is formed in the template 4, guide post seats 2 are arranged on the periphery of the upper surface of the die holder 1, and guide posts 3 are arranged at the upper ends of the guide post seats 2;

further comprising:

positioning pieces 5 which are arranged on both sides of the template 4 and are integrally formed with the template 4;

a first semicircular groove 6 provided inside the positioning piece 5;

a second semicircular groove 7 which is arranged at one side of the positioning sheet 5, and the second semicircular groove 7 and the die holder 1 are integrally formed;

and a circular pressing block 8 disposed between the first semicircular groove 6 and the second semicircular groove 7.

Please refer to fig. 3, a ball screw 13 is installed at the lower end of the circular pressing block 8, one end of the ball screw 13 penetrates and extends to the lower end of the die holder 1, a worm gear 17 is installed outside the ball screw 13, a ball screw pair 18 is installed at the upper end of the worm gear 17, the ball screw pair 18 is in transmission connection with the ball screw 13, a rotating shaft 9 is installed inside the die holder 1, a worm wall 16 is installed on the outer wall of the rotating shaft 9, two worm walls 16 are provided, the rotating shaft 9 is in transmission connection with the ball screw 13 through the worm wall 16, a thrust bearing 19 is installed at the upper end of the ball screw pair 18, when the rotating shaft 9 rotates, the two worm walls 16 on the outer wall can be in transmission with the worm gear 17, the ball screw pair 18 at the upper end of the worm gear 17 is in transmission with the ball screw 13, so as to realize the up-and-down movement of the ball screw 13, and drive the circular pressing block 8 to press the positioning sheets 5 at both sides of the die plate 4.

Referring to fig. 3, the thrust bearing 19 is provided at an upper end thereof with a guide sleeve 20, and the guide sleeve 20 is capable of guiding a moving direction of the ball screw 13.

Please refer to fig. 3, one end of the rotating shaft 9 penetrates and extends to the outside of the die holder 1, and the rotating disc 10 is installed, so that the rotating shaft 9 can be rotated by the rotating disc 10 more conveniently.

Referring to fig. 3, a first bearing piece 11 is installed at a joint between an outer wall of one end of the rotating shaft 9 and the die holder 1, a second bearing piece 14 is installed at a joint between the other end of the rotating shaft 9 and the die holder 1, and the arrangement of the first bearing piece 11 and the second bearing piece 14 improves the rotation precision of the rotating shaft 9.

Please refer to fig. 3, a flexible pad 15 is disposed on the lower surface of the circular pressing block 8, and the flexible pad 15 is bonded to the circular pressing block 8, so that the flexible pad 15 can prevent the pressing surface from being worn when the circular pressing block 8 is pressed against the semicircular groove.

The working principle is as follows: when the die holder is used, firstly, the rotary table 10 is rotated to drive the rotary shaft 9 to rotate, when the rotary shaft 9 rotates, the two worm walls 16 on the outer wall of the rotary table can be in transmission with the turbine 17, the ball screw pair 18 at the upper end of the turbine 17 is in transmission with the ball screw 13 to drive the two ball screws 13 and the circular pressing block 8 at the upper end of the ball screws to move upwards, then the die plate 4 is clamped into a preset notch of the die holder 1, the two sides of the die plate 4 are respectively provided with the positioning piece 5, the connecting part of the positioning piece 5 and the die holder 1 is respectively provided with a semicircular groove to form a circular notch as large as the circular pressing block 8, and after the die plate is clamped, the rotary table 10 is rotated reversely, so that the circular pressing block 8 moves downwards to be clamped into the circular notch, and the fixing work of the die plate can be completed.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A clamping and positioning device for a die comprises a die holder (1), wherein a template (4) is mounted on the upper surface of the die holder (1), notches with corresponding sizes are formed in the joint of the template (4) and the die holder (1), a die cavity (12) is formed in the template (4), guide post seats (2) are arranged on the periphery of the upper surface of the die holder (1), and guide posts (3) are mounted at the upper ends of the guide post seats (2);

the method is characterized in that: further comprising:

positioning pieces (5) which are arranged on two sides of the template (4) and are integrally formed with the template (4);

a first semicircular groove (6) provided inside the positioning plate (5);

the second semicircular groove (7) is arranged on one side of the positioning sheet (5), and the second semicircular groove (7) and the die holder (1) are integrally formed;

a circular pressing block (8) disposed between the first semicircular groove (6) and the second semicircular groove (7).

2. A clamping and positioning device for a mold as set forth in claim 1, wherein: the die holder is characterized in that a ball screw (13) is installed at the lower end of the round pressing block (8), one end of the ball screw (13) penetrates through and extends to the lower end of the die holder (1), a turbine (17) is arranged outside the ball screw (13), a ball screw pair (18) is arranged at the upper end of the turbine (17), the ball screw pair (18) is in transmission connection with the ball screw (13), a rotating shaft (9) is installed inside the die holder (1), a worm wall (16) is installed on the outer wall of the rotating shaft (9), two worm walls (16) are arranged, the rotating shaft (9) is in transmission connection with the ball screw (13) through the worm wall (16), and a thrust bearing (19) is arranged at the upper end of the ball screw pair (18).

3. A clamping and positioning device for a mold as set forth in claim 2, wherein: the upper end of the thrust bearing (19) is provided with a guide sleeve (20).

4. A clamping and positioning device for a mold as set forth in claim 2, wherein: one end of the rotating shaft (9) penetrates through and extends to the outside of the die holder (1), and a rotating disc (10) is installed on the rotating shaft.

5. A clamping and positioning device for a mold as defined in claim 2, wherein: a first bearing piece (11) is installed at the joint of the outer wall of one end of the rotating shaft (9) and the die holder (1), and a second bearing piece (14) is installed at the joint of the other end of the rotating shaft (9) and the die holder (1).

6. A clamping and positioning device for a mold as set forth in claim 1, wherein: the lower surface of the round pressing block (8) is provided with a flexible pad (15), and the flexible pad (15) is connected with the round pressing block (8) in an adhesion mode.