CN214977839U

CN214977839U - Multipurpose jack catch frock

Info

Publication number: CN214977839U
Application number: CN202121449571.5U
Authority: CN
Inventors: 张鹤利
Original assignee: Suzhou Industrial Park Bosta Machinery Co ltd
Current assignee: Suzhou Industrial Park Bosta Machinery Co ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2021-12-03
Anticipated expiration: 2031-06-29

Abstract

The utility model provides a multipurpose jack catch frock, include: the chuck base, a plurality of jack catchs of chuck base are located to the card, fixedly set up in the fan-shaped claw of jack catch upper end, wherein a plurality of fan-shaped claws enclose the axle center of the circular arc of establishing with the axle center of chuck base is coaxial, the up end department of fan-shaped claw is provided with at least one step. In this way, the utility model provides a current jack catch concentricity poor, the easy problem that warp of centre gripping.

Description

Multipurpose jack catch frock

Technical Field

The utility model belongs to the technical field of ball valve production and specifically relates to a multipurpose jack catch frock is related to.

Background

In the production process of ball valves, various parts are processed, wherein parts of a rotary body, such as a top flange, a valve seat and various thin-wall ring parts, can be clamped by the conventional clamping jaws, but the concentricity is not good. And for parts such as thin-wall rings and pressing plates, the actual contact surface with a workpiece is limited during clamping due to the limited width of the conventional clamping jaw, and deformation is easily caused after processing. Some parts are short in length, so that the conventional clamping jaw cannot meet the high-precision machining requirement, and the universality of different excircle adaptations is poor, so that the production requirement cannot be met.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a multipurpose jack catch frock.

The main contents of the utility model include: a multi-purpose jaw tool, comprising: the chuck base, a plurality of jack catchs of chuck base are located to the card, fixedly set up in the fan-shaped claw of jack catch upper end, wherein a plurality of fan-shaped claws enclose the axle center of the circular arc of establishing with the axle center of chuck base is coaxial, the up end department of fan-shaped claw is provided with at least one step.

Preferably, the jack catch has set gradually bellying, transition portion and concave part by the outside circumferencial direction in the axle center of chuck base, fan-shaped claw fixed set up in the up end of concave part.

Preferably, the upper end face of the lowest step is higher than the highest end face of the claw.

Preferably, a plurality of grooves are uniformly formed in the inner side wall of each clamping jaw.

Preferably, the fixed connection between the fan-shaped claws and the clamping jaws is welding or bolt connection.

Preferably, the contact parts of the left side and the right side of the clamping jaw and the fan-shaped jaw are respectively provided with a support plate.

Preferably, the supporting plate adopts a right-angled triangle structure, wherein two right-angled sides are respectively abutted against the fan-shaped claw and the clamping jaw.

The beneficial effects of the utility model reside in that:

1. the jaw tool of the utility model has high concentricity and good processing quality;

2. the fan-shaped claws are added, so that the application range of the claws is improved;

3. the arc-shaped fan-shaped claw is adopted to clamp the workpiece, so that the workpiece is prevented from being damaged, and the processing quality of the workpiece is improved.

Drawings

FIG. 1 is a perspective view of a multi-purpose jaw tooling in accordance with a preferred embodiment;

FIG. 2 is a schematic perspective view of a multi-purpose jaw tooling at another angle;

FIG. 3 is a schematic perspective view of the jaw;

reference numerals: 1-chuck base, 2-clamping jaws, 3-fan-shaped jaws, 4-supporting plates, 11-T-shaped grooves, 21-convex parts, 22-transition parts, 23-concave parts, 24-grooves, 25-T-shaped bottoms and 31-steps.

Detailed Description

The technical solution protected by the present invention will be specifically described below with reference to the accompanying drawings.

As shown in fig. 1, a multipurpose jaw tool includes: chuck base 1, the three jack catch 2 of chuck base 1 is located to the card, and angular distribution such as three jack catch 2 is fixed to be set up in three fan-shaped claw 3 of jack catch 2 upper end, wherein three fan-shaped claw 3 enclose the axle center of the circular arc of establishing with chuck base 1's axle center is coaxial, the up end department of fan-shaped claw 3 is provided with three step 31. The jack catch 2 is provided with bellying 21, transition portion 22 and concave part 23 by the outside circumferencial direction in proper order in the axle center of chuck base 1, fan-shaped claw 3 fixed set up in the up end of concave part 23. Wherein the upper end surface of the lowest step is higher than the highest end surface of the clamping jaw 2.

The multistage step setting can be used for processing the circular member of different external diameters, places the circular member in the step of fan-shaped claw, and it can to press from both sides tightly through the jack catch.

Wherein, the fixed connection between the fan-shaped claw 3 and the claw 2 is welding.

Further, as shown in fig. 2, the contact portions between the left side and the right side of the claw 2 and the fan-shaped claw 3 are respectively provided with a support plate 4, the support plates 4 are in a right-angled triangle structure, and two right-angled sides of the support plates are respectively abutted against the fan-shaped claw 3 and the claw 2. The stability of the sector claw 3 is improved by the support plate 4.

As shown in fig. 3, a plurality of grooves 24 are uniformly formed on the inner side wall of the jaw 2, so that the clamping force of the jaw 2 is increased.

The utility model discloses in, chuck base 1 can adopt ordinary chuck base, and jack catch 2 is provided with T type bottom 25, with the 11 phase-matches in the T type groove of chuck base 1 department, T type bottom 25 card goes into in T type groove 11 to through the screw drive, realize jack catch 2's centre gripping and loosen.

The utility model discloses a course of working does: put fan-shaped claw 3 placed in the middle on 2 planes of jack catch after earlier welding fan-shaped claw 3 internal diameter and jack catch 2 contact department (form a whole this moment), then put jack catch 2 in the opposite direction, contact department welding 3 bottom surfaces of fan-shaped claw and jack catch 2 again, because fan-shaped claw 3 surpasss 2 both sides of jack catch more, so place a fixed support plate 4 and weld together respectively on 2 both sides of jack catch when welding the bottom surface, fixed support plate 4 is the set square that has certain thickness and length, make fan-shaped claw 3 and jack catch 2 firmly combine together. After the three fan-shaped claws 3 are operated in sequence, the claw 2 (which is an integral body comprising the fan-shaped claws 3 and the supporting plate 4) is screwed into the base 1, and the size required by the inner diameter and the outer diameter of the fan-shaped claws 3 is finely machined on a machine tool according to the requirement. The inner diameter of the fan-shaped claw 3 can clamp the outer circles of parts such as a top flange and a valve seat, and the outer circle of the fan-shaped claw 3 can stretch the inner holes of parts such as the valve seat with large through holes. Because the sector claw 3 has more contact surfaces than the original claw 2 regardless of clamping the excircle or stretching the inner hole, the same part jump can be within 0.02 when processing the same part, and the deformation of the part is greatly reduced when processing the thin-wall part. When the valve seat and the ring parts are processed, the precision is improved. Because the inner ring can be processed with a plurality of steps, the inner ring has certain universality, and for various specifications, only a plurality of sets of similar jaw combination bodies need to be manufactured, so that the purchase and manufacturing cost is saved.

The working process of the utility model is as follows: after the jack catch 2 forming the whole is screwed into the base 1, required sizes are processed inside and outside the fan-shaped claw 3, a part to be processed is fixed through the mode of clamping an excircle or tightening an inner hole through the fan-shaped claw 3, and then a machine tool spindle rotates to start processing. After being worn for multiple uses, the worker can repair the fan-shaped claw 3. For parts with large gaps, only the old claw 2 is needed to be dismounted and the new claw 2 meeting the requirements is needed to be replaced, the operation is simple, and the operation is the same as that of normal claw mounting and dismounting.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. The utility model provides a multipurpose jack catch frock which characterized in that includes: the chuck base, a plurality of jack catchs of chuck base are located to the card, fixedly set up in the fan-shaped claw of jack catch upper end, wherein a plurality of fan-shaped claws enclose the axle center of the circular arc of establishing with the axle center of chuck base is coaxial, the up end department of fan-shaped claw is provided with at least one step.

2. The multipurpose jaw tool according to claim 1, wherein the jaw is provided with a convex portion, a transition portion and a concave portion in sequence from an axis of the chuck base to an outer circumferential direction, and the fan-shaped jaw is fixedly arranged on an upper end surface of the concave portion.

3. The multipurpose jaw tooling of claim 2 wherein the upper end surface of the lowest step is higher than the highest end surface of the jaw.

4. The multipurpose jaw tool according to claim 1, wherein a plurality of grooves are uniformly formed in the inner side wall of the jaw.

5. The multipurpose jaw tool according to claim 1, wherein the fixed connection between the fan-shaped jaw and the jaw is welding or bolting.

6. The multipurpose jaw tool according to claim 1, wherein support plates are respectively arranged on the left side and the right side of the jaw and the contact part of the fan-shaped jaw.

7. The multipurpose jaw tool according to claim 6, wherein the support plate is of a right triangle structure, and two right-angle sides of the support plate are respectively abutted against the fan-shaped jaw and the jaw.