CN210189061U

CN210189061U - Zero point positioning fixture

Info

Publication number: CN210189061U
Application number: CN201920835500.5U
Authority: CN
Inventors: Jianwei Yang; 杨建威
Original assignee: Dongguan Warwick Precision Tools Co Ltd
Current assignee: Dongguan Warwick Precision Tools Co Ltd
Priority date: 2019-06-04
Filing date: 2019-06-04
Publication date: 2020-03-27
Anticipated expiration: 2029-06-04

Abstract

The utility model discloses a zero point positioning fixture, which comprises a base, the outside limit of chassis bottom is provided with the fixed screw hole of using in chassis, one side on chassis is provided with the trachea joint, the inside on chassis is provided with the cylinder piston groove, the internally mounted of cylinder piston groove has pull-down piston, pull-down piston's up end is provided with twelve spring holes, the internally mounted in spring hole has compression spring, pull-down piston's inner wall is provided with eight pull-down piston inner groovies, pull-down piston's surface mounting has two rubber circles, the hanging wall is installed to pull-down piston's top, the intermediate position of hanging wall up end is provided with places the hole, the below of placing the hole is provided with the sleeve pipe, the sheathed tube surface is provided with eight round holes. The utility model discloses it is convenient that the fixed work piece of dismantling, fixed effectual.

Description

Zero point positioning fixture

Technical Field

The utility model relates to a zero point positioning fixture technical field specifically is a zero point positioning fixture.

Background

The jig is a device for fixing a processing object to occupy a correct position for receiving construction or inspection in a machine manufacturing process, and is also called a jig. In a broad sense, any process in the process, the device for quickly, conveniently and safely installing the workpiece can be called a clamp, the types of the clamps are various, and the traditional pneumatic zero positioning clamp is used for fixing some blind rivet workpieces.

However, the existing zero point positioning fixture is not directed to heavy metal cutting when a numerical control machine tool is used for machining a part product. The requirements of heavy cutting locking force and position degree cannot be met due to structural problems; therefore, the existing requirements are not met, and a zero point positioning clamp is provided for the zero point positioning clamp.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a zero point positioning fixture to solve the heavy metal cutting when the current zero point positioning fixture that provides among the above-mentioned background art is not to digit control machine tool processing part product. The requirements of locking force and position degree of heavy cutting cannot be met due to structural problems and the like.

In order to achieve the above object, the utility model provides a following technical scheme: a zero positioning fixture comprises a chassis, wherein a chassis fixing threaded hole is formed in the outer side edge of the bottom end of the chassis, an air pipe connector is arranged on one side of the chassis, a cylindrical piston groove is formed in the chassis, a pull-down piston is mounted in the cylindrical piston groove, twelve spring holes are formed in the upper end face of the pull-down piston, compression springs are mounted in the spring holes, eight pull-down piston inner grooves are formed in the inner wall of the pull-down piston, two rubber rings are mounted on the outer surface of the pull-down piston, an upper disc is mounted above the pull-down piston, a placing hole is formed in the middle of the upper end face of the upper disc, a sleeve is arranged below the placing hole, eight round holes are formed in the outer surface of the sleeve, the sleeve is clamped into the inner wall of the pull-down piston, a steel ball is arranged in the round hole, and a pull, the bottom end of the blind rivet is provided with an annular slope type bulge.

Preferably, the outer side edge of the upper end face of the upper disc is provided with a step hole, and the step hole is connected with the base disc through a hexagon socket head cap screw.

Preferably, the air pipe connector is connected with the cylindrical piston groove through a pipeline.

Preferably, the bottom end of the compression spring is fixed with the spring hole through riveting.

Preferably, the inner side end of the round hole is provided with an inward-folded arc edge bulge, and the inner diameter of the inner side end of the round hole is smaller than that of the other end of the round hole.

Preferably, the cross section of the inner groove of the pull-down piston is trapezoidal.

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

1. the utility model discloses an air pipe connector aerifys to the cylinder piston inslot, and compressed air reaches the bottom of drop-down piston through the pipeline inside the chassis, and compressed air promotes drop-down piston vertical upward movement, makes the drop-down piston inner groovy of drop-down piston inner wall align with the round hole, and the steel ball is returned to the drop-down piston inner groovy position blind rivet of drop-down piston inner wall and is relieved spacing and just can take out, and the whole is unloaded conveniently;

2. the utility model discloses a compression spring drives down the piston and moves down the ring slope type arch that makes the steel ball laminating blind rivet bottom of returning down the piston inner groovy inside down, if needs increase pressure, compressed air passes through the air pipe joint on the left side, and compressed air passes through the inside pipeline in chassis, reachs down-pulling piston top, and compressed air promotes down-pulling piston vertical downstream, produces the reinforcement, increases anchor clamps locking force.

Drawings

Fig. 1 is a schematic overall structure diagram of the present invention;

FIG. 2 is an exploded view of the whole body of the present invention;

fig. 3 is a bottom view of an exploded view of the present invention;

fig. 4 is a partial cutaway view of the present invention.

In the figure: 1. a chassis; 2. pulling nails; 3. hanging the plate; 4. a socket head cap screw; 5. a gas pipe joint; 6. a threaded hole for fixing the chassis; 7. placing holes; 8. a spring hole; 9. a rubber ring; 10. pulling the piston down; 11. a cylindrical piston groove; 12. a circular hole; 13. a sleeve; 14. a circular slope type bulge; 15. a compression spring; 16. a steel ball; 17. and pulling down the piston inner groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 to 4, the present invention provides an embodiment: a zero point positioning fixture comprises a chassis 1, a chassis fixing threaded hole 6 is arranged on the outer side edge of the bottom end of the chassis 1, an air pipe joint 5 is arranged on one side of the chassis 1, a cylindrical piston groove 11 is arranged inside the chassis 1, a pull-down piston 10 is arranged inside the cylindrical piston groove 11, twelve spring holes 8 are arranged on the upper end face of the pull-down piston 10, compression springs 15 are arranged inside the spring holes 8, eight pull-down piston inner grooves 17 are arranged on the inner wall of the pull-down piston 10, two rubber rings 9 are arranged on the outer surface of the pull-down piston 10, an upper disc 3 is arranged above the pull-down piston 10, a placing hole 7 is arranged in the middle of the upper end face of the upper disc 3, a sleeve 13 is arranged below the placing hole 7, eight round holes 12 are arranged on the outer surface of the sleeve 13, the sleeve 13 is clamped into the inner wall of the pull-down piston, the bottom end of the blind rivet 2 is provided with an annular slope type bulge 14.

Furthermore, the outer side edge of the upper end surface of the upper disc 3 is provided with a step hole, and the step hole is connected with the base disc 1 through an inner hexagon screw 4, so that the connection stability is improved.

Further, the air pipe joint 5 is connected with the cylindrical piston groove 11 through a pipeline, and the connection stability is improved.

Further, the bottom end of the compression spring 15 is fixed with the spring hole 8 through riveting, and fixing firmness is improved.

Furthermore, an inward-folded arc-shaped bulge is arranged at the inner side end of the round hole 12, and the inner diameter of the inner side end of the round hole 12 is smaller than that of the other end of the round hole 12.

Further, the cross section of the inner groove 17 of the pull-down piston is trapezoidal.

The working principle is as follows: when the device is used, the device is fixed by a threaded hole 6 for fixing a chassis, a blind rivet 2 is plugged into a placing hole 7, a down-pulling piston 10 is driven by a compression spring 15 to move downwards to enable a steel ball 16 returned to the inside of an inner groove 17 of the down-pulling piston to be attached to an annular slope type bulge 14 at the bottom end of the blind rivet 2, if pressure needs to be increased, compressed air passes through a left air pipe connector 5, the compressed air passes through a pipeline inside the chassis 1 and reaches the top of the down-pulling piston 10, the compressed air pushes the down-pulling piston 10 to vertically move downwards to generate force reinforcement, the locking force of a clamp is increased, the top end of the blind rivet 2 is conveniently processed, after processing is completed, the air is inflated into a cylindrical piston groove 11 through the air pipe connector 5, the compressed air reaches the bottom of the down-pulling piston 10 through the pipeline inside the chassis 1, the compressed air pushes the down-pulling piston 10 to, the steel ball 16 is returned to the position of the inner groove 17 of the pull-down piston on the inner wall of the pull-down piston 10, the pull nail 2 is relieved from limiting and can be taken out, and the whole unloading operation is convenient.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. 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 zero point positioning fixture comprises a chassis (1), and is characterized in that: the outer side edge of the bottom end of the chassis (1) is provided with a chassis fixing threaded hole (6), one side of the chassis (1) is provided with an air pipe connector (5), a cylindrical piston groove (11) is arranged inside the chassis (1), a pull-down piston (10) is arranged inside the cylindrical piston groove (11), twelve spring holes (8) are formed in the upper end face of the pull-down piston (10), a compression spring (15) is arranged inside each spring hole (8), eight pull-down piston inner grooves (17) are formed in the inner wall of the pull-down piston (10), two rubber rings (9) are arranged on the outer surface of the pull-down piston (10), an upper disc (3) is arranged above the pull-down piston (10), a placing hole (7) is formed in the middle position of the upper end face of the upper disc (3), and a sleeve (13) is arranged below the placing hole (7), the surface of sleeve pipe (13) is provided with eight round holes (12), sleeve pipe (13) card is gone into the inner wall of drop-down piston (10), the inside of round hole (12) is provided with steel ball (16), the internally mounted who places hole (7) has blind rivet (2), the bottom of blind rivet (2) is provided with annular slope type arch (14).

2. The zero point positioning jig according to claim 1, characterized in that: the outer side edge of the upper end face of the upper disc (3) is provided with a step hole, and the step hole is connected with the base disc (1) through an inner hexagon screw (4).

3. The zero point positioning jig according to claim 1, characterized in that: the air pipe joint (5) is connected with the cylindrical piston groove (11) through a pipeline.

4. The zero point positioning jig according to claim 1, characterized in that: the bottom end of the compression spring (15) is fixed with the spring hole (8) through riveting.

5. The zero point positioning jig according to claim 1, characterized in that: the inner side end of the round hole (12) is provided with an inward-folded arc edge bulge, and the inner diameter of the inner side end of the round hole (12) is smaller than that of the other end of the round hole (12).

6. The zero point positioning jig according to claim 1, characterized in that: the cross section of the inner groove (17) of the pull-down piston is trapezoidal.