CN113732162A

CN113732162A - Quick mode locking device

Info

Publication number: CN113732162A
Application number: CN202110934725.8A
Authority: CN
Inventors: 俞宏德
Original assignee: Ningbo Minth Automotive Parts Research and Development Co Ltd
Current assignee: Ningbo Minth Automotive Parts Research and Development Co Ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2021-12-03

Abstract

The invention discloses a fast mold locking device, which is used for installing a mold on a machine tool and comprises: the lifting assembly is arranged on the machine tool and comprises a die lifter which can move along the height direction relative to the machine tool; the mode locking subassembly, it sets up on the lathe, the mode locking subassembly includes: a lock case movable in a height direction with respect to the machine tool; and the lock pin is provided with a first connecting section and a second connecting section, the first connecting section penetrates through the machine tool to be slidably connected with the lock sleeve, the second connecting section is abutted against the machine tool, and the lock pin is rotated so as to lock or release the sliding of the lock pin relative to the lock sleeve. In the application, the lock pin is rotated so that the first connecting section can be abutted against the lock sleeve, and the lock sleeve is locked or tightened with the lock pin through the movement of the lock sleeve in the height direction; convenient operation makes the retooling more convenient, and the locking dynamics is stronger.

Description

Quick mode locking device

Technical Field

The invention relates to the technical field of molds, in particular to a quick mold locking device.

Background

In the die cutting process, different dies need to be replaced on a machine tool, and when the dies are replaced, the original dies are firstly detached from the machine tool, and then the dies needing to be replaced are installed on the machine tool. The existing mold is generally detached and installed by lifting the mold through hydraulic equipment, positioning a baffle plate and locking the mold through a pressing plate or an oil cylinder.

The existing die change device has the following defects: the die change efficiency is low, a hydraulic mechanism is needed for lifting the die, the positioning is inaccurate, and the punching process of the machine tool is influenced.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a quick mold locking device which is used for solving the problems that in the prior art, the mold changing efficiency is low, a hydraulic mechanism is needed for lifting the mold, the positioning is inaccurate, and the like.

The technical scheme adopted by the invention for solving the technical problem is a quick mold locking device, which is used for installing a mold on a machine tool and comprises the following components:

the lifting assembly is arranged on the machine tool and comprises a die lifter which can move along the height direction relative to the machine tool;

the mode locking subassembly, it sets up on the lathe, the mode locking subassembly includes: a lock case movable in a height direction with respect to the machine tool; and the lock pin is provided with a first connecting section and a second connecting section, the first connecting section penetrates through the machine tool to be slidably connected with the lock sleeve, the second connecting section is abutted against the machine tool, and the lock pin is rotated so as to lock or release the sliding of the lock pin relative to the lock sleeve.

Further, still include lift cylinder and mode locking cylinder, the lift cylinder with it is used for driving to lift the mould ware and remove along the direction of height, the mode locking cylinder with the lock sleeve is connected and is used for driving the lock sleeve removes.

Further, the lifting assembly further comprises: a guide sleeve disposed on the machine tool; and the guide post is fixed on the die lifter and is in slidable connection with the guide sleeve.

Furthermore, a first locking block is arranged in the lock sleeve, and a positioning hole is formed in the first locking block; and a second locking block is arranged on the first connecting section, can penetrate through the positioning hole and abut against the first locking block, and abuts against or is separated from the first locking block so as to lock or release the relative motion between the lock sleeve and the lock pin.

Further, the cross section of the second locking block in the direction perpendicular to the sliding direction of the lock pin is a cross section, and the width of the cross section of the second locking block is smaller than the length of the cross section.

Further, one end, far away from the second connecting section, of the second locking block is also provided with a first guide portion, and the cross-sectional area of the first guide portion is gradually reduced from the second connecting section to the first connecting section to form a first guide surface.

Further, the positioning hole is a waist hole, a second guiding portion is arranged at the inlet end of the positioning hole, and the sectional area of the second guiding portion is gradually reduced from the second connecting section to the first connecting section to form a second guiding surface.

Furthermore, the first connecting section also comprises a limiting section, the limiting section is positioned at one end, close to the second connecting section, of the second locking block, and the sectional area of the limiting section is gradually reduced from the second connecting section to the first connecting section to form a third guide surface; the third guide surface abuts the second guide surface to restrict movement of the lock pin in a direction of the second connecting section toward the first connecting section.

Furthermore, a positioning sleeve is fixedly arranged on the die and provided with a circular through hole; one end of the first connecting section, which is close to the second connecting section, is provided with a positioning part which is arranged in a cylinder, the positioning part penetrates through the positioning sleeve, and the side wall of the positioning part is attached to the inner wall of the circular through hole.

Further, the second connecting section is arranged in a cylinder shape, and the section radius of the second connecting section is larger than that of the circular through hole.

Compared with the prior art, the invention has at least the following beneficial effects:

1. the lock pin is rotated so that the first connecting section can abut against the lock sleeve, and the lock sleeve is moved in the height direction to lock (tighten) the lock sleeve and the lock pin. Convenient operation makes the retooling more convenient, and the locking dynamics is stronger.

2. The guide pillar and the guide sleeve are arranged, so that the lifting of the die lifter is more stable.

3. The first guide surface and the second guide surface are arranged to preliminarily position the lock pin, and the lock pin is guided to the positioning hole with a guide function.

4. And a third guide surface and a second guide surface are arranged, when the two guide surfaces are abutted, the lock pin can be limited from continuously sliding relative to the lock sleeve, and therefore the limit is realized.

5. The positioning sleeve is arranged to be attached to the positioning part, so that accurate positioning is realized; the locating sleeve is arranged to be a cylinder, so that the lock sleeve and the lock pin can rotate relatively, and the lock sleeve is convenient to lock after rotation.

Drawings

FIG. 1 is a schematic view showing the construction of a mold clamping apparatus, a mold and a machine tool in the embodiment;

FIG. 2 is a sectional view of the mold clamping device, the mold and the machine tool in the embodiment;

FIG. 3 is a schematic view showing the structure of a mold clamping apparatus in the embodiment;

FIG. 4 is a schematic structural view of a mold clamping assembly in the embodiment;

FIG. 5 is a schematic structural view of a lock pin according to an embodiment;

FIG. 6 is a schematic structural view of a lock sleeve in the embodiment;

in the figure:

100. a mold;

200. a machine tool;

300. a lifting assembly; 310. a mould lifting device; 320. a lifting cylinder; 330. a guide post; 340. a guide sleeve;

400. a mold locking assembly; 410. a lock pin; 411. a first connection section; 412. a second connection section; 413. a second lock block; 414. a first guide surface; 415. a third guide surface; 416. a positioning part; 420. a lock sleeve; 421. a first locking block; 422. positioning holes; 423. a second guide surface; 430. a positioning sleeve; 440. and a mold locking cylinder.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

Referring to fig. 1 to 6, the present invention discloses a fast mold clamping apparatus for mounting a mold 100 on a machine tool 200, including:

a lift assembly 300 provided on a machine tool 200, the lift assembly 300 including a die lifter 310, the die lifter 310 being movable in a height direction with respect to the machine tool 200;

a mold clamping assembly 400 disposed on the machine tool 200, the mold clamping assembly 400 comprising: a lock sleeve 420, the lock sleeve 420 being movable in a height direction with respect to the machine tool 200; a lock pin 410 having a first connecting section 411 and a second connecting section 412, the first connecting section 411 passing through the machine tool 200 and slidably connecting with the lock sleeve 420, the second connecting section 412 abutting against the machine tool 200, the lock pin 410 being rotated so as to lock or release the sliding of the lock pin 410 relative to the lock sleeve 420.

Specifically, in the present embodiment, the mold lifter 310 is first raised, a new mold 100 is pushed into the mold lifter 310, then the height of the mold lifter 310 is lowered, the mold 100 is placed on the machine tool 200, and the mold 100 is fixed to the mold 100 by the lock sleeve 420 and the lock pin 410, thereby completing the mold locking.

In this process, the lock pin 410 is rotated so that the first connecting section 411 can abut against the lock sleeve 420, and the lock sleeve 420 is locked (tightened) with the lock pin 410 by moving in the height direction. Convenient operation makes the retooling more convenient, and the locking dynamics is stronger.

Further, still include lift cylinder 320 and mode locking cylinder 440, lift cylinder 320 with lift mould ware 310 is connected and is used for driving lift mould ware 310 removes along the direction of height, mode locking cylinder 440 with lock sleeve 420 is connected and is used for driving lock sleeve 420 removes.

Through setting up lift cylinder 320 and mode locking cylinder 440 to replace the hydraulic equipment in the traditional retooling technology, avoid hydraulic equipment oil leak to cause punch press and mould 100 to damage.

Further, the lifting assembly 300 further comprises: a guide sleeve 340 provided on the machine tool 200; a guide post 330 fixed to the die lifter 310 and slidably connected to the guide sleeve 340.

The guide post 330 and the guide sleeve 340 are arranged, so that the lifting of the die lifter 310 is more stable.

Further, a first locking block 421 is arranged in the lock sleeve 420, and a positioning hole 422 is formed in the first locking block 421; the first connecting section 411 is provided with a second locking block 413, the second locking block 413 can pass through the positioning hole 422 and abut against the first locking block 421, and the second locking block 413 abuts against or is separated from the first locking block 421 to lock or release the relative movement between the lock sleeve 420 and the lock pin 410.

The specific process is as follows, the second locking block 413 passes through the positioning hole 422, then the lock pin 410 is rotated, and finally the lock sleeve 420 is pulled down, so as to realize locking. After the second locking block 413 passes through the positioning hole 422, the second locking block 413 may have two conditions: firstly, after the lock pin 410 is rotated, the second locking block 413 abuts against the first locking block 421, and then the locking force is enhanced by pulling down the lock sleeve 420; second, after the lock pin 410 is rotated, the second locking block 413 is separated from the first locking block 421, and needs to be locked by pulling down the lock sleeve 420.

Further, a cross section of the second locking block 413 in a direction perpendicular to the sliding direction of the lock pin 410 is a cross section, and a width of the cross section of the second locking block 413 is smaller than a length of the cross section.

Specifically, the second locking block 413 is a flat body, and the wide and flat shape can facilitate the second locking block to pass through the positioning hole 422 and abut against the first locking block 421 after rotating, so that the second locking block cannot exit from the positioning hole 422, thereby facilitating locking.

Further, the end of the second locking block 413 away from the second connecting section 412 also has a first guiding portion, and the cross-sectional area of the first guiding portion gradually decreases from the second connecting section 412 to the first connecting section 411 to form a first guiding surface 414.

Further, the positioning hole 422 is a waist hole, and an inlet end of the positioning hole 422 is provided with a second guide portion having a cross-sectional area gradually decreasing from the second connecting section 412 toward the first connecting section 411 to form a second guide surface 423.

The first guide surface 414 and the second guide surface 423 are provided to preliminarily position the lock pin 410, and guide the lock pin 410 to the positioning hole 422 with a guiding function.

Further, the first connecting section 411 further includes a limiting section, the limiting section is located at one end of the second locking block 413 close to the second connecting section 412, and the cross-sectional area of the limiting section is gradually reduced from the second connecting section 412 to the first connecting section 411 to form a third guide surface 415; the third guiding surface 415 abuts against the second guiding surface 423 to limit the movement of the locking pin 410 in the direction of the second connecting section 412 towards the first connecting section 411.

The third guide surface 415 and the second guide surface 423 are provided to limit the further sliding of the lock pin 410 relative to the lock sleeve 420 when the two guide surfaces abut against each other, so as to achieve the limit.

Further, a positioning sleeve 430 is fixedly arranged on the mold 100, and a circular through hole is formed in the positioning sleeve 430; one end of the first connecting section 411 close to the second connecting section 412 is provided with a positioning portion 416 arranged in a cylindrical shape, the positioning portion 416 penetrates through the positioning sleeve 430, and the side wall of the positioning portion 416 is attached to the inner wall of the circular through hole.

The positioning sleeve 430 is arranged to be attached to the positioning portion 416, so that accurate positioning is achieved. The positioning sleeve 430 is configured as a cylinder so that relative rotation between the lock sleeve 420 and the lock pin 410 can occur to facilitate locking after rotation.

It will be appreciated that the first connecting segment 411 on the locking pin 410 first passes through the hole in the mold 100, then through the locating sleeve 430, and finally through the locating hole 422 and locks within the locking sleeve 420. When the position of the hole on the mold 100 is fixed, the relative position of the mold 100 and the machine tool 200 can be kept unchanged during each mold locking, and the mold 100 can be positioned.

Further, the second connecting section 412 is disposed in a cylinder, and the cross-sectional radius of the second connecting section 412 is greater than the cross-sectional radius of the circular through hole.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

Moreover, descriptions of the present invention as relating to "first," "second," "a," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating a number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Claims

1. A quick clamping apparatus for mounting a mold on a machine tool, comprising:

2. The apparatus according to claim 1, further comprising a lifting cylinder and a locking cylinder, wherein the lifting cylinder is connected to the mold lifter for driving the mold lifter to move in a height direction, and the locking cylinder is connected to the lock sleeve for driving the lock sleeve to move.

3. The apparatus according to claim 1, wherein the lifting assembly further comprises: a guide sleeve disposed on the machine tool; and the guide post is fixed on the die lifter and is in slidable connection with the guide sleeve.

4. The apparatus according to claim 1, wherein a first locking block is disposed in the lock sleeve, and a positioning hole is formed in the first locking block; and a second locking block is arranged on the first connecting section, can penetrate through the positioning hole and abut against the first locking block, and abuts against or is separated from the first locking block so as to lock or release the relative motion between the lock sleeve and the lock pin.

5. The apparatus according to claim 4, wherein a cross section of the second lock block perpendicular to the sliding direction of the lock pin is a cross section, and a width of the cross section of the second lock block is smaller than a length of the cross section.

6. The apparatus according to claim 5, wherein the second lock block further has a first guide portion at an end thereof remote from the second coupling section, and the first guide portion has a cross-sectional area gradually decreasing from the second coupling section toward the first coupling section to form a first guide surface.

7. The apparatus according to claim 6, wherein the positioning hole is a waist hole, and an inlet end of the positioning hole is provided with a second guide portion having a sectional area gradually decreasing from the second connecting portion toward the first connecting portion to form a second guide surface.

8. The apparatus according to claim 7, wherein the first coupling section further comprises a limiting section, the limiting section is located at an end of the second locking block close to the second coupling section, and a cross-sectional area of the limiting section decreases from the second coupling section toward the first coupling section to form a third guide surface; the third guide surface abuts the second guide surface to restrict movement of the lock pin in a direction of the second connecting section toward the first connecting section.

9. The apparatus according to claim 1, wherein a positioning sleeve is fixedly disposed on the mold, and the positioning sleeve is provided with a circular through hole; one end of the first connecting section, which is close to the second connecting section, is provided with a positioning part which is arranged in a cylinder, the positioning part penetrates through the positioning sleeve, and the side wall of the positioning part is attached to the inner wall of the circular through hole.

10. The apparatus according to claim 9, wherein the second connecting section is formed in a cylindrical shape, and a cross-sectional radius of the second connecting section is larger than a cross-sectional radius of the circular through hole.