CN218017971U

CN218017971U - Pull-down locking type zero point positioning module for hydraulic combined vice

Info

Publication number: CN218017971U
Application number: CN202222333139.0U
Authority: CN
Inventors: 田彬彬
Original assignee: Shenzhen Xinyuanhao Hardware Technology Co ltd
Current assignee: Shenzhen Xinyuanhao Hardware Technology Co ltd
Priority date: 2022-09-02
Filing date: 2022-09-02
Publication date: 2022-12-13
Anticipated expiration: 2032-09-02

Abstract

The utility model discloses a pull-down locking type zero-point positioning module for a hydraulic combined vice, which comprises a shell, a pull-down seat, a pull-down rod, a buffer spring and a plurality of pull claws; the shell is internally provided with a mounting cavity; the pull-down seat can be movably arranged in the mounting cavity up and down, and is provided with a mounting hole; the lower pull rod can be movably arranged in the mounting hole up and down and drives the lower pull seat to move downwards; the buffer spring is sleeved outside the lower pull rod and drives the lower pull rod to reset upwards; the plurality of pull claws are distributed around the periphery of the pull-down base. This product uses with the cooperation of hydraulic pressure combination vice, drives the lower link activity by the pneumatic cylinder for lower pull seat drives a plurality of claws that draw and moves from top to bottom, and a plurality of claws that draw move from top to bottom and open or close each other, in order to loosen or clip the pull-down blind rivet, this kind of structure control response is fast, and pull-down is strong, and all-directional clamping-force is even, and it is not high to the machining precision requirement of each part, is favorable to reduce cost, satisfies the needs that use.

Description

Pull-down locking type zero point positioning module for hydraulic combined vice

Technical Field

The utility model belongs to the technical field of the anchor clamps frock and specifically relates to indicate a drop-down locking formula zero point orientation module for hydraulic pressure combination vice.

Background

A vise is a tool that uses a screw or other mechanism to move two jaws relative to each other to clamp a workpiece. A vise generally comprises a base, a vise body, a fixed jaw, a movable jaw, and a transmission mechanism for moving the movable jaw. Depending on the application, there are some types of vises, such as bench vises and machine vises. The bench vice is arranged on the bench work table for bench workers to clamp workpieces so as to carry out processing such as sawing, filing and the like. The vice is high in jaw and arched, and the vice body can be freely rotated and fastened on the base. A machine vice is a machine tool accessory, also called flat tongs, and is generally installed on the working table of machine tools such as milling machines, drilling machines, shaper planes, surface grinding machines and the like for use. Compared with a vice, the vice for machine use has wide and low jaw, large clamping force and high precision requirement. There are many types of machine vices, which can be classified into general type and precision type according to precision. The precision type is used for finishing machine tools such as surface grinding machines, boring machines and the like. The machine vice can be divided into rotary type with base, fixed type without base and inclinable type according to the structure.

In order to facilitate the vise to clamp and fix a workpiece well, various clamps are generally provided on the vise to be used in combination with the vise to better clamp various workpieces. The zero-point positioning fixture is one of many fixtures, for example, the zero-point positioning fixture disclosed in the chinese utility model patent (patent No. 201920835500.5) generally drives a piston by gas, and then drives a steel ball by the piston, so that the steel ball is clamped into a groove of a blind rivet to lock the blind rivet. However, the pneumatic driving method has slow control response, the pull-down force of the steel ball to the pull nail is weaker, the clamping force in each direction is not uniform, the machining precision requirement on each part is high, the cost is high, and in addition, the zero point positioning clamp cannot be combined with a vice for use and cannot meet the use requirement. Therefore, there is a need for an improved zero point positioning fixture.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a pull-down locking type zero-point positioning module for a hydraulic combination vice, which can effectively solve the problems of slow control, weak pull-down force, and uneven clamping force in all directions of the existing zero-point positioning clamp.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a pull-down locking type zero-point positioning module for a hydraulic combined vice comprises a shell, a pull-down seat, a pull-down rod, a buffer spring and a plurality of pull claws; the shell is internally provided with an installation cavity, the top surface of the shell is provided with a through hole for inserting the blind rivet, and the through hole is communicated with the installation cavity; the pull-down seat can be movably arranged in the mounting cavity up and down, and is provided with a mounting hole; the lower pull rod can be movably arranged in the mounting hole up and down and drives the lower pull seat to move downwards, and the lower pull rod extends downwards out of the shell and is driven by a hydraulic cylinder of the hydraulic combination vice; the buffer spring is sleeved outside the lower pull rod and drives the lower pull rod to reset upwards; the pull claws are distributed around the pull-down seat, each pull claw can be installed on the pull-down seat in a back-and-forth swinging mode and is located in the installation cavity, the upper end inner walls of the pull claws are respectively convexly provided with a hook part used for hooking a pull nail, the upper end outer walls of the pull claws are matched with the inner walls of the installation cavity and are opened or closed with the pull-down seat in an up-and-down moving mode, the lower end sleeves of the pull claws are provided with spring rings, and the spring rings act on the lower ends of the pull claws and enable the upper ends of the pull claws to be opened with each other.

As a preferred scheme, the shell is of an integrated structure and is integrally processed by materials, so that the stability of the product is ensured.

As a preferred scheme, the bottom surface of the shell is provided with teeth which are matched with the base of the hydraulic combined vice to be positioned and installed, so that the hydraulic combined vice is completely attached, and the precision is ensured.

Preferably, the upper end of the mounting hole is radially enlarged to form a receiving hole, and the buffer spring is inserted into the receiving hole.

As an optimal scheme, a limiting snap spring is clamped on the inner wall of the accommodating hole, a limiting plate is sleeved on the upper end of the lower pull rod and located below the limiting snap spring and limited by the limiting snap spring, and the limiting plate abuts against the upper end of the buffer spring.

Preferably, the buffer spring is formed by overlapping a plurality of layers of belleville springs up and down and is used for buffering the redundant stroke of the hydraulic combined vice.

Preferably, the outer wall of the pull-down seat is concavely provided with a hinge groove, the inner side surface of the pull claw is convexly provided with a hinge part, and the hinge part is embedded in the hinge groove and is hinged.

As a preferred scheme, the three pulling claws are arranged around the pull-down seat at equal angles, so that the synchronism and consistency of pull-down are ensured.

As a preferable scheme, a guide block which is matched with the base of the hydraulic combination vice is fixed at the bottom of the outer shell.

As a preferable scheme, two side pressing blocks are clamped on the front side and the rear side of the shell, a side pressing plate is hinged to each side pressing block, a screw hole is formed in each side pressing block, a screw is screwed in the screw hole, and the screw abuts against the upper surface of each side pressing plate.

Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, can know by above-mentioned technical scheme:

this product uses with the cooperation of hydraulic pressure combination vice, drives the lower link activity by the pneumatic cylinder for lower pull seat drives a plurality of claws that draw and moves from top to bottom, and a plurality of claws that draw move from top to bottom and open or close each other, in order to loosen or clip the pull-down blind rivet, this kind of structure control response is fast, and pull-down is strong, and all-directional clamping-force is even, and it is not high to the machining precision requirement of each part, is favorable to reduce cost, satisfies the needs that use.

To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is an assembled perspective view of a preferred embodiment of the present invention;

FIG. 2 is a perspective view of the present invention in another angle;

fig. 3 is an exploded view of the preferred embodiment of the present invention;

fig. 4 is an exploded view from another angle of the preferred embodiment of the present invention;

FIG. 5 is a cross-sectional view of a preferred embodiment of the present invention;

FIG. 6 is a perspective view of the preferred embodiment of the present invention in use;

fig. 7 is a sectional view of the preferred embodiment of the present invention in use.

The attached drawings indicate the following:

10. outer shell 11 and mounting cavity

12. Through hole 13, tooth

14. Clamping groove 15 and first guide inclined plane

20. Pull-down base 21 and mounting hole

22. Containing hole 23 and limiting clamp spring

24. Hinge groove 30, lower link

31. Limiting plate 32 and thread section

33. Connecting block 40, buffer spring

41. Belleville spring 50, draw claw

51. Hook 52, spring ring

53. Hinge part 54, caulking groove

55. Second guide inclined surface 60, blind rivet

70. Hydraulic combined vice 71 and base

72. Connecting module 73 and hydraulic cylinder

701. Positioning teeth 702 and fixing grooves

703. Guide groove 81, guide block

82. Side pressing block 83 and side pressing plate

84. Screw 85, tool board

801. And a screw hole.

Detailed Description

Referring to fig. 1 to 7, a specific structure of a preferred embodiment of the present invention is shown, which includes a housing 10, a lower pull seat 20, a lower pull rod 30, a buffer spring 40 and a plurality of pull claws 50.

The housing 10 has a mounting cavity 11 therein, and a through hole 12 for inserting the blind rivet 60 is formed in the top surface of the housing 10, and the through hole 12 is communicated with the mounting cavity 11. In this embodiment, the housing 10 is an integrated structure, and is integrally formed by processing a metal material, so as to ensure the stability of the product. The bottom surface of the shell 10 is provided with teeth 13 which are matched with the base 71 of the hydraulic combined vice 70 for positioning and installation, so that the complete attachment with the hydraulic combined vice is realized, and the precision is ensured. A guide block 81 fitted to the base 71 of the hydraulic vise 70 is fixed to the bottom of the housing 10, and the guide block 81 is fixed to the bottom of the housing 10 by screws (not shown). The front side and the rear side of the shell 10 are both provided with clamping grooves 14, each clamping groove 14 is internally provided with a side pressing block 82, each side pressing block 82 is hinged with a side pressing plate 83, each side pressing block 82 is provided with a screw hole 801, a screw 84 is screwed in the screw hole 801, and the screw 84 is abutted against the upper surface of the side pressing plate 83; and, the inner wall of the installation cavity 11 is formed with a first guide slope 15.

The lower pulling seat 20 is movably disposed in the mounting cavity 11 up and down, and the lower pulling seat 20 is provided with a mounting hole 21. In this embodiment, the upper end of the mounting hole 21 is radially expanded to form a receiving hole 22, the inner wall of the receiving hole 22 is clamped with a limit clamp spring 23, and the outer wall of the pull-down seat 20 is concavely provided with a hinge groove 24.

The lower pull rod 30 is movably arranged in the mounting hole 21 up and down and drives the lower pull seat 20 to move downward, and the lower pull rod 30 extends out of the housing 10 downward and is driven by a hydraulic cylinder 73 of the hydraulic combination vice 70; the upper end of the lower pull rod 30 is sleeved with a limiting plate 31, the limiting plate 31 is located below the limiting clamp spring 23 and is limited by the limiting clamp spring 23, the lower pull rod 30 is a screw rod, the lower end of the lower pull rod is provided with a threaded section 32, and the threaded section 32 is in threaded connection with a connecting block 33.

The buffer spring 40 is sleeved outside the lower pull rod 30 and urges the lower pull rod 30 to return upwards. In the present embodiment, the buffer spring 40 is embedded in the containing hole 22, the limiting plate 31 abuts against the upper end of the buffer spring 40, and the buffer spring 40 is formed by stacking a plurality of layers of belleville springs 41 up and down to buffer the excess stroke of the hydraulic combination vise.

The pulling claws 50 are distributed around the lower pulling seat 20, each pulling claw 50 can be arranged on the lower pulling seat 20 in a back-and-forth swinging mode and is positioned in the installation cavity 11, the inner walls of the upper ends of the pulling claws 50 are respectively convexly provided with a hook part 51 for hooking a pulling nail 60, the outer walls of the upper ends of the pulling claws 50 are matched with the inner wall of the installation cavity 11 and are opened or closed with the vertical movement of the lower pulling seat 20, the lower ends of the pulling claws 50 are sleeved with spring rings 52, and the spring rings 52 act on the lower ends of the pulling claws 50 and enable the upper ends of the pulling claws 50 to be opened with each other. In this embodiment, the three pulling claws 50 are arranged at equal angles around the pull-down base 20, so as to ensure the synchronism and consistency of pull-down. The inner side of the pulling claw 50 is provided with a hinge part 53 in a protruding way, and the hinge part 53 is embedded in the hinge groove 24 for hinge. The outer side surface of the lower end of the pulling claw 50 is concavely provided with a caulking groove 54, and the spring ring 52 is embedded in the caulking groove 54. The upper end outer wall of the pulling claw 50 is formed with a second guide slope 55 which is engaged with the first guide slope 15.

The working principle of the embodiment is detailed as follows:

when in use, according to actual needs, as shown in fig. 6 and 7, the product is placed on a corresponding position of a base 71 of a hydraulic combination vice 70, teeth 13 are engaged and positioned with corresponding positioning teeth 701 on the base 71, side pressure plates 83 are clamped into fixing grooves 702 on the side surfaces of the base 71, the side pressure plates 83 are only clamped into the fixing grooves 702 through locking screws 84, at the moment, guide blocks 81 are positioned in guide grooves 703 of the base 71, connecting blocks 33 are clamped into connecting blocks 72 of the hydraulic combination vice 70, the connecting blocks 72 are driven by hydraulic cylinders 73 to move up and down, and the hydraulic cylinders 73 are connected with an external hydraulic station and driven by the hydraulic station to work.

During operation, this blind rivet 60 passes through the bolt fastening in the bottom of tool board 85, mention tool board 85, make blind rivet 60 insert in through-hole 12 downwards, insert the back in place, by hydraulic pressure station drive pneumatic cylinder 73 work, pneumatic cylinder 73 drives connecting module 72 activity downwards, in order to pull down the pull down rod 30, pull down rod 30 drives pull down seat 20 activity downwards through buffer spring 40, these a plurality of tabs 50 move down along with pull down seat 20, under the cooperation guide of first guide inclined plane 15 and second guide inclined plane 55, the upper end of a plurality of tabs 50 is closed, make each collude portion 51 tightly embrace blind rivet 60 and pull down blind rivet 60, in order to realize the locking location to tool board 85. When the jig plate 85 needs to be loosened, the hydraulic cylinder 73 is driven by the hydraulic station to work, the hydraulic cylinder 73 drives the connecting module 72 to move upwards so as to push the lower pull rod 30 upwards, the lower pull rod 30 no longer compresses the buffer spring 40, the lower pull seat 20 no longer compresses, the upper ends of the pull claws 50 are opened mutually under the action of the spring ring 52, the pull nails 60 are loosened by the hook parts 51 and no longer hooked on the pull nails 60, and at the moment, the jig plate 85 can be lifted, so that the pull nails 60 are pulled out from the through holes 12.

The utility model discloses a design focus lies in: this product uses with the cooperation of hydraulic pressure combination vice, drives the lower link activity by the pneumatic cylinder for lower pull seat drives a plurality of claws that draw and moves from top to bottom, and a plurality of claws that draw move from top to bottom and open or close each other, in order to loosen or clip the pull-down blind rivet, this kind of structure control response is fast, and pull-down is strong, and all-directional clamping-force is even, and it is not high to the machining precision requirement of each part, is favorable to reduce cost, satisfies the needs that use.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention are all within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a pull-down locking formula zero point location module for hydraulic pressure combination vice which characterized in that: comprises a shell, a lower pull seat, a lower pull rod, a buffer spring and a plurality of pull claws; the shell is internally provided with an installation cavity, the top surface of the shell is provided with a through hole for inserting the blind rivet, and the through hole is communicated with the installation cavity; the pull-down seat can be movably arranged in the mounting cavity up and down, and is provided with a mounting hole; the lower pull rod can be movably arranged in the mounting hole up and down and drives the lower pull seat to move downwards, and the lower pull rod extends out of the shell downwards and is driven by a hydraulic cylinder of the hydraulic combined vice; the buffer spring is sleeved outside the lower pull rod and drives the lower pull rod to reset upwards; the pull claws are distributed around the pull-down seat, each pull claw can be installed on the pull-down seat in a back-and-forth swinging mode and is located in the installation cavity, the upper end inner walls of the pull claws are respectively convexly provided with a hook part used for hooking a pull nail, the upper end outer walls of the pull claws are matched with the inner walls of the installation cavity and are opened or closed with the pull-down seat in an up-and-down moving mode, the lower end sleeves of the pull claws are provided with spring rings, and the spring rings act on the lower ends of the pull claws and enable the upper ends of the pull claws to be opened with each other.

2. The drop-down locking type zero-point positioning module for a hydraulic combination vise as claimed in claim 1, wherein: the shell is of an integrated structure and is integrally processed by materials.

3. The drop-down locking type zero-point positioning module for a hydraulic combination vise as claimed in claim 1, wherein: the bottom surface of the shell is provided with teeth which are matched with the base of the hydraulic combined vice for positioning and installation.

4. The drop-down locking type zero-point positioning module for a hydraulic combination vise as claimed in claim 1, wherein: the upper end of the mounting hole is radially expanded to form a containing hole, and the buffer spring is embedded in the containing hole.

5. The drop-down locking type zero-point positioning module for a hydraulic combination vise of claim 4, wherein: the inner wall of the containing hole is clamped with a limiting clamp spring, the upper end of the lower pull rod is sleeved with a limiting plate, the limiting plate is located below the limiting clamp spring and limited by the limiting clamp spring, and the limiting plate abuts against the upper end of the buffer spring.

6. The drop-down locking type zero-point positioning module for a hydraulic combination vise as claimed in claim 1, wherein: the buffer spring is formed by overlapping a plurality of layers of belleville springs up and down.

7. The drop-down locking type zero-point positioning module for a hydraulic combination vise as claimed in claim 1, wherein: the outer wall of the pull-down seat is concavely provided with a hinge groove, the inner side surface of the pull claw is convexly provided with a hinge part, and the hinge part is embedded in the hinge groove and is hinged.

8. The drop-down locking type zero-point positioning module for a hydraulic combination vise as claimed in claim 1, wherein: the three pulling claws are arranged around the lower pulling seat at equal angles.

9. The drop-down locking type zero-point positioning module for a hydraulic combination vise as claimed in claim 1, wherein: the bottom of the shell is fixed with a guide block which is matched and arranged with the base of the hydraulic combined vice.

10. The drop-down locking type zero-point positioning module for a hydraulic combination vise as claimed in claim 1, wherein: the front side and the rear side of the shell are respectively clamped with a side pressing block, each side pressing block is hinged with a side pressing plate, a screw hole is formed in each side pressing block, a screw is screwed in each screw hole, and each screw abuts against the upper surface of each side pressing plate.