CN114589955A

CN114589955A - Automatic clamping device for mold

Info

Publication number: CN114589955A
Application number: CN202210222946.7A
Authority: CN
Inventors: 汪敏; 陶胜陪; 张伟华; 沈鹏; 敖镇; 王威
Original assignee: Zhejiang Sot Heavy Industry Technology Co ltd
Current assignee: Zhejiang Sot Heavy Industry Technology Co ltd
Priority date: 2022-03-09
Filing date: 2022-03-09
Publication date: 2022-06-07
Anticipated expiration: 2042-03-09
Also published as: CN114589955B

Abstract

The invention relates to the technical field of dies, in particular to an automatic clamping device for dies, which comprises a bottom plate, a locking block and a cylinder barrel, wherein a piston is arranged in the cylinder barrel, the root of the locking block is sunk into the cylinder barrel through the piston, the other end of the locking block, which is far away from the root, extends out of the bottom plate and is provided with a pressing block for pressing the dies to the bottom plate, the root of the locking block is provided with a driving seat, the driving seat is connected with the pressing block through a connecting rod, the pressing block is provided with a step which exceeds the cross section of the connecting rod, one end of the piston, which is close to the locking block, is provided with a driving block for driving the locking block to stretch, the driving block is connected with the driving seat in a driving way, the side surface of the driving block is provided with an inlet and outlet groove which penetrates through the piston and the cylinder barrel and extends to the bottom plate, the automatic clamping device has the advantages of scientific structure, convenient and rapid use, and capability of rapidly and reliably clamping the dies, taking down the locking block when not in use and avoiding occupying die space, the method has wide application, and can be used for a single template or mould, a whole set of mould, a mould frame and the like.

Description

Automatic clamping device for mold

Technical Field

The invention relates to the technical field of molds, in particular to an automatic mold clamping device.

Background

The mould is widely used for blanking, die forging, cold-heading, extrusion, powder metallurgy spare suppression, pressure casting to and engineering plastics, rubber, the compression moulding of goods such as pottery or the shaping processing of moulding plastics, because the product is different, the specification is different, the process is different, it is one indispensable process to change the mould, and this requires the mould can change the mould fast to improve production efficiency, reduction in production cost.

The rapid die change of the die depends on the fixing mode of the die, and in the prior art, the most common fixing mode of the die is to fix the die through a die stacking clamp, a die clamper and the like, so that the efficiency is low, and the labor intensity is high. The utility model discloses a mould self-holding device like utility model 201220287070.6 gives some current mould clamping device and the mould clamping device after the improvement, all has above-mentioned problem.

Disclosure of Invention

The invention aims to overcome the defects of the prior art, and provides an automatic mold clamping device which is scientific in structure, convenient and quick to use, capable of clamping a mold quickly and reliably, capable of taking down a locking block when not used, avoiding occupying the space of the mold, wide in application range, and capable of being used for a single template or mold, a whole set of mold, a mold frame and the like.

The technical scheme adopted by the invention for solving the technical problems is as follows: an automatic mold clamping device comprises a bottom plate, a locking block and a cylinder barrel sunk into the bottom plate, wherein a telescopic piston is arranged in the cylinder barrel, the root of the locking block is sunk into the cylinder barrel through the piston, the other end, far away from the root, of the locking block extends out of the bottom plate and is provided with a pressing block used for pressing a mold to the bottom plate, the root of the locking block is provided with a driving seat, the driving seat is connected with the pressing block through a connecting rod, the pressing block is provided with a step exceeding the cross section of the connecting rod, one end, close to the locking block, of the piston is provided with a driving block driving the locking block to stretch, the driving block is connected with the driving seat in a driving mode, the side face of the driving block is provided with an inlet and outlet groove penetrating through the piston and the cylinder barrel and extending to the bottom plate, and the extending direction of the inlet and outlet groove is perpendicular to the stretching direction of the piston, the locking block is connected with the access groove in a sliding mode.

Preferably, the driving seat is provided with a step exceeding the cross section of the connecting rod, and the inlet and outlet groove is a T-shaped groove matched with the driving seat and the connecting rod.

Preferably, the driving block is provided with a first collision surface for colliding with the step of the driving seat and a second collision surface for colliding with the end part of the driving seat, and the distance between the first collision surface and the second collision surface is greater than the height of the driving seat.

Preferably, the cylinder is provided with a first oil inlet pipeline for driving the piston to extend out and a second oil inlet pipeline for driving the piston to retract.

Preferably, the piston comprises a first piston and a second piston, the first piston and the second piston are fixedly connected through threads, the driving block is arranged on the second piston, and the first oil inlet pipeline and the second oil inlet pipeline are arranged on the side surface of the first piston.

Preferably, the bottom plate is provided with a counter bore groove for the driving seat to extend into at one end of the inlet and outlet groove far away from the cylinder barrel.

Preferably, the cylinder barrel is fixedly connected with the bottom plate through a bolt.

Preferably, a sealing ring is arranged between the cylinder barrel and the bottom plate, and a sealing ring is arranged between the piston and the bottom plate.

The invention has the beneficial effects that: the automatic clamping device for the mold has the advantages that the cylinder barrel and the piston which are arranged in the bottom plate control the locking block to stretch and retract, so that the mold is locked or loosened; when the locking block is not used, the locking block can be taken down, so that the position of the bottom plate is a plane, the occupation of the die space is avoided, the interference to other devices is avoided, and when the locking block is required to be used, the locking block can be placed at the corresponding cylinder barrel as required at any time; for a large mold, a plurality of automatic mold clamping devices can be synchronously used; the device has wide application, can be directly used on equipment such as a press machine and the like so as to directly fix a die set or a die, and also can be used on the die so as to fix the die, and an upper die and a lower die can be used.

Drawings

Fig. 1 is a schematic structural view of an automatic mold clamping device of the present invention.

Fig. 2 is a schematic sectional view of the inside of the automatic mold clamping apparatus of the present invention.

Fig. 3 is a schematic structural view of the locking block of the present invention.

Description of reference numerals:

1-bottom plate 11-counter bore groove

2-locking block 21-pressing block

22-driving seat 23-connecting rod

3-cylinder 31-first oil inlet pipeline

32-second oil inlet pipeline 4-piston

41-driving block 411-first collision surface

412-second interference surface 42-first piston

43-second piston 5-Access groove

6-mould.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific examples, which are not intended to limit the scope of the invention.

As shown in fig. 1, 2 and 3, the automatic mold clamping device of the present embodiment includes a bottom plate 1, a locking block 2, and a cylinder 3, where the cylinder 3 is substantially cylindrical and is sunk into the bottom plate 1, and as shown in fig. 1 and 2, the cylinder 3 is fixedly connected to the bottom plate 1 through a bolt. In order to embody the internal structure, two automatic mold clamping devices are respectively arranged on the left side and the right side in fig. 1 and 2, a cylinder barrel 3, a locking block 2, a piston 4 and the like are arranged on the left side, and the cylinder barrel 3, the locking block 2, the piston 4 and the like are not arranged on the right side. The cylinder 3 is connected with the bottom plate 1 from the upper end face downwards using 5 annularly distributed bolts.

A telescopic piston 4 is arranged in the cylinder barrel 3, and the cylinder barrel 3 is provided with a first oil inlet pipeline 31 for driving the piston 4 to extend out and a second oil inlet pipeline 32 for driving the piston 4 to retract. When the pressure of the first oil feed line 31 is greater than the pressure of the second oil feed line 32, the piston 4 is extended outwardly by the pressure, and when the pressure of the first oil feed line 31 is less than the pressure of the second oil feed line 32, the piston is retracted inwardly by the pressure. When there are a plurality of automatic mold clamping devices, the first oil inlet pipeline 31 and the second oil inlet pipeline 32 can be respectively communicated.

As shown in fig. 3, the locking block 2 includes a driving seat 22 at the root, and a pressing block 21 at the other end, and the driving seat 22 is connected to the pressing block 21 through a connecting rod 23. The driving seat 22 is sunk into the cylinder 3 through the piston 4, and is extended and contracted by the piston 4. The pressing block 21 is used for pressing the die 6 to the bottom plate 1. The holding-down block 21 is provided with a step beyond the cross section of the connecting rod 23, by means of which the mould 6 is held down.

The piston 4 is provided with a driving block 41 for driving the locking block 2 to stretch and retract at one end close to the locking block 2, and the piston 4 can be rigidly connected with the locking block 2 through the driving block 41, but the locking block 2 is not easy to disassemble. In this embodiment, the driving seat 22 is provided with and surpasss the step of connecting rod 23 cross section, and is corresponding, the drive block 41 is provided with and is used for contradicting the first conflict face 411 of the step of driving seat 22, be used for contradicting the second conflict face 412 of driving seat 22 tip, first conflict face 411 with the distance between the second conflict face 412 is greater than the height of driving seat 22 just so makes piston 4 and latch segment 2 non-rigid connection, and after piston 4 went upward a section distance, second conflict face 412 contradicted latch segment 2 and made it go upward, otherwise, after piston 4 went downward a section distance, first conflict face 411 contradicted latch segment 2 and made it down, and upward, down here all use the direction of fig. 2 as the reference. Therefore, a certain transition is formed between the clamping state and the releasing state, and the clamping device is safer.

Furthermore, an access slot 5 is formed in the side surface of the driving block 41, penetrates through the piston 4 and the cylinder 3, and extends to the bottom plate 1, the extending direction of the access slot 5 is perpendicular to the extending direction of the piston 4, and the locking block 2 is slidably connected with the access slot 5. The inlet and outlet groove 5 is a T-shaped groove matched with the driving seat 22 and the connecting rod 23. Furthermore, the bottom plate 1 is provided with a counter bore groove 11 for the driving seat 22 to extend into at one end of the inlet and outlet groove 5 far away from the cylinder barrel 3. In this way, the locking segment 2 is relatively independent of the cylinder 3 and the like, and the locking segment 2 can be inserted into or removed from the access slot 5, which is very advantageous for the installation of the mold. For example, can install the mould automatic clamping device of this application of multiunit, install latch segment 2 according to the needs of reality and make its work, and other positions do not install latch segment 2, just so make to use more in a flexible way, do not install 1 surfaces of local bottom plate of latch segment 2 for the plane, avoid occupation mould space, do not lead to the fact the interference to other devices.

As shown in fig. 2, the piston 4 includes a first piston 42 and a second piston 43, the first piston and the second piston are fixedly connected by a screw thread, the driving block 41 is disposed on the second piston 43, and the first oil inlet pipeline 31 and the second oil inlet pipeline 32 are disposed on a side surface of the first piston 42.

A sealing ring is arranged between the cylinder barrel 3 and the bottom plate 1, and a sealing ring is arranged between the piston 4 and the bottom plate 1.

Furthermore, the clamping direction of the device is perpendicular to the bottom plate 1, and the L-shaped pressing block 21 shown in fig. 3 is adopted to directly press the die 6, so that the device has wide application, only a small installation area is shown in fig. 1, and the device can be directly used on an upper die base and a lower die base of the pressing device such as a press machine in practical application, so that the device is used for clamping the die and a die set and can also be used for clamping the die and a template on the die set. The arrangement mode can also be various and is not limited by the direction, such as the vertical direction and the horizontal direction.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. Mould automatic clamping device, its characterized in that: the mold clamping device comprises a bottom plate (1), a locking block (2) and a cylinder barrel (3) sinking into the bottom plate (1), wherein a telescopic piston (4) is arranged in the cylinder barrel (3), the root of the locking block (2) sinks into the cylinder barrel (3) through the piston (4), the other end, away from the root, of the locking block (2) extends out of the bottom plate (1) and is provided with a pressing block (21) used for pressing a mold towards the bottom plate (1), the root of the locking block (2) is provided with a driving seat (22), the driving seat (22) is connected with the pressing block (21) through a connecting rod (23), the pressing block (21) is provided with a step exceeding the cross section of the connecting rod (23), one end, close to the locking block (2), of the piston (4) is provided with a driving block (41) driving the locking block (2) to stretch, the driving block (41) is connected with the driving seat (22) in a driving mode, an access groove (5) penetrating through the piston (4) and the cylinder barrel (3) and extending to the bottom plate (1) is formed in the side face of the driving block (41), the extending direction of the access groove (5) is perpendicular to the extending direction of the piston (4), and the locking block (2) is connected with the access groove (5) in a sliding mode.

2. The automatic mold clamping device according to claim 1, wherein: the driving seat (22) is provided with a step exceeding the cross section of the connecting rod (23), and the inlet and outlet groove (5) is a T-shaped groove matched with the driving seat (22) and the connecting rod (23).

3. The automatic mold clamping device according to claim 2, wherein: the drive block (41) is provided with a first interference surface (411) for interfering with the step of the drive seat (22), a second interference surface (412) for interfering with the end of the drive seat (22), and the distance between the first interference surface (411) and the second interference surface (412) is greater than the height of the drive seat (22).

4. The automatic mold clamping device according to claim 1, wherein: the cylinder barrel (3) is provided with a first oil inlet pipeline (31) for driving the piston (4) to extend out and a second oil inlet pipeline (32) for driving the piston (4) to retract.

5. The automatic mold clamping device according to claim 4, wherein: the piston (4) comprises a first piston (42) and a second piston (43), the first piston (42) is fixedly connected with the second piston (43) through threads, the driving block (41) is arranged on the second piston (43), and the first oil inlet pipeline (31) and the second oil inlet pipeline (32) are arranged on the side face of the first piston (42).

6. The automatic mold clamping device according to claim 1, wherein: and a counter bore groove (11) for the driving seat (22) to extend into is arranged at one end of the bottom plate (1) far away from the cylinder barrel (3) in the inlet and outlet groove (5).

7. The automatic mold clamping device according to claim 1, wherein: the cylinder barrel (3) is fixedly connected with the bottom plate (1) through bolts.

8. The automatic mold clamping device according to claim 1, wherein: and a sealing ring is arranged between the cylinder barrel (3) and the bottom plate (1), and a sealing ring is arranged between the piston (4) and the bottom plate (1).