CN215147383U

CN215147383U - Indexing fixture

Info

Publication number: CN215147383U
Application number: CN202121177542.8U
Authority: CN
Inventors: 王鹏坛
Original assignee: Dongguan Changmin Precision Hardware Co ltd
Current assignee: Dongguan Changmin Precision Hardware Co ltd
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2021-12-14
Anticipated expiration: 2031-05-28

Abstract

The utility model discloses an indexing fixture, which comprises a main structure body, wherein the main structure body comprises a base and supports symmetrically arranged on the base, a swing mechanism is arranged between the supports, one side of the supports is also provided with a limiting mechanism and a first cylinder component, the bottom of the swing mechanism is provided with a second cylinder component, the first cylinder component is fixedly arranged on the base, a transmission mechanism is arranged between the limiting mechanism and the first cylinder component, the transmission mechanism comprises a transmission gear, a transmission chain and a piston rod, and the piston rod is alternately arranged in the first cylinder component, the indexing fixture can reduce the labor intensity, is convenient and practical, is more convenient to process workpieces, has simple structure, is convenient to manufacture and maintain and use, can quickly and conveniently install the workpieces at a specified position, and greatly improves the product precision, the production cost can be reduced, the working efficiency is improved, and the rejection rate is reduced.

Description

Indexing fixture

Technical Field

The utility model relates to an anchor clamps technical field specifically is an indexing fixture.

Background

The indexing fixture is used for clamping a workpiece, and after each surface is machined, the movable part on the fixture rotates for a certain angle or moves for a certain distance together with the workpiece so as to change the position of the machined surface. In production, it is often encountered that workpieces are required to be machined in groups, distributed uniformly at certain corners or distances, and having surfaces of the same shape and dimensions as one another, for example: in order to drill a set of equally divided holes, mill a set of equally divided grooves, or process polyhedrons, etc., in order to accomplish such equally divided surface processing in one clamping of a workpiece, it is required that after one surface is processed, the fixture should be rotated by a certain angle or moved by a certain distance together with the workpiece. Traditional indexing fixture degree of automation is low, and the pivoted precision is not enough, and the work piece that leads to processing easily reaches the qualification rate low to the cost has been increased, and the work piece that presss from both sides tightly on traditional anchor clamps is small in quantity, and work efficiency is low, provides an indexing fixture for this reason.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of prior art scheme, the utility model provides an indexing fixture can the effectual problem that the solution background art provided.

The utility model provides a technical scheme that its technical problem adopted is:

an indexing fixture comprises a main structure body, wherein the main structure body comprises a base and supports symmetrically arranged on the base, a swing mechanism is arranged between the supports, a limiting mechanism and a first air cylinder assembly are further arranged on one side of each support, a second air cylinder assembly is arranged at the bottom of each swing mechanism, the first air cylinder assembly is fixedly arranged on the base, a transmission mechanism is arranged between each limiting mechanism and the corresponding first air cylinder assembly, each transmission mechanism comprises a transmission gear, a transmission chain and a piston rod, and the piston rods are arranged in the first air cylinder assemblies in an inserting mode;

swing mechanism includes the support and fixes the loading board of locating on the support, be equipped with a plurality of groups work piece on the loading board, the axis of rotation is worn to be equipped with in the both sides of support, the axis of rotation with support fixed connection, the support passes through the axis of rotation is followed the circumferential movement of support, the axis of rotation runs through the support with stop gear connects, stop gear includes first gag lever post, second gag lever post and spacing bolt, spacing bolt runs through perpendicularly and locates in the axis of rotation, first gag lever post is located one side of axis of rotation, the second gag lever post is located the lower extreme of axis of rotation, the second gag lever post with spacing bolt contacts.

Particularly, the transmission gear is sleeved on the rotating shaft, the rotating shaft is fixedly connected with the transmission gear, the transmission gear is meshed with the transmission chain, the transmission chain is connected with the piston rod, and the piston rod moves along the Y-axis direction of the support.

In particular, the support is connected with the second cylinder assembly, the support is movably connected with a rotating shaft, the rotating shaft penetrates through the support, and a movable gap is formed between the rotating shaft and the support.

Particularly, the first limiting rod and the second limiting rod are both fixedly arranged on the support, and an included angle is formed between the first limiting rod and the second limiting rod.

Particularly, the support is an overhead structure and is parallel to the base.

Particularly, an inner side bearing for assisting the rotation of the rotating shaft is arranged at the joint of the bracket and the rotating shaft.

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

the utility model discloses an indexing fixture, in the using process, fix the base on the equipment used, the support is symmetrically installed on the two sides of the base, the support is used for supporting the support, the two sides of the support run through the rotating shaft and are fixed on the support and the support through the rotating shaft, after the driving chain is connected through the transmission gear fixed on the rotating shaft, the piston rod is fixed by the driving chain, the piston rod does the up-and-down piston motion in the first cylinder component to drive the rotating shaft, the rotating shaft is fixed on the support, the bottom of the support is provided with the second cylinder component, the upper end of the support is fixed with the bearing plate, a plurality of workpieces are arranged on the bearing plate, the first limiting rod and the second limiting rod fixed on one side of the support are used for positioning the support in the rotating process, when the limiting bolt inserted on the rotating shaft rotates, the support is parallel to the support by the support due to the blocking of the first limiting rod, after spacing bolt and second gag lever post contact, the support resets, and this structure reaches required angle through adopting cylinder drive support to rotate and stop gear's location, reduces intensity of labour, convenient and practical, the processing to the work piece of being more convenient for to this anchor clamps simple structure, it is convenient to make, and the maintenance of being convenient for is used, can be fast, conveniently with the mounted to the assigned position of work piece, has improved the product precision by a wide margin, can reduction in production cost, improves work efficiency, reduction in the number of rejects.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the present invention;

FIG. 3 is a schematic side view of the present invention;

fig. 4 is a schematic structural diagram of a portion a in fig. 1 according to the present invention.

Reference numbers in the figures:

1. a base; 2. a swing mechanism; 3. a first cylinder assembly; 4. a support; 5. a transmission mechanism; 6. a workpiece; 7. a limiting mechanism; 8. a support; 9. a carrier plate; 10. a second cylinder assembly; 11. a rotating shaft; 12. a piston rod; 13. a first limit rod; 14. a second limiting rod; 15. a transmission gear; 16. a limiting bolt; 17. a drive chain; 18. an inboard bearing housing.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-4, the utility model provides an indexing fixture, which comprises a main structure body, the main structure body comprises a base 1 and supports 4 symmetrically arranged on the base 1, a swing mechanism 2 is arranged between the supports 4, a limit mechanism 7 and a first cylinder assembly 3 are further arranged on one side of the supports 4, a second cylinder assembly 10 is arranged at the bottom of the swing mechanism 2, the first cylinder assembly 3 is fixedly arranged on the base 1, a transmission mechanism 5 is arranged between the limit mechanism 7 and the first cylinder assembly 3, the transmission mechanism 5 comprises a transmission gear 15, a transmission chain 17 and a piston rod 12, the piston rod 12 is arranged in the first cylinder assembly 3 in an inserting manner, wherein the number of the first cylinder assemblies 3 is two, the two first cylinder assemblies are respectively fixed on two sides of the supports 4 and are flush with the transmission mechanism 5, the transmission chain 17 is driven by the piston rod 12, the transmission chain 17 drives the rotating shaft 11 through the transmission gear 15, and the support 8 is driven after the rotating shaft 11 rotates.

The swing mechanism 2 comprises a support 8 and a bearing plate 9 fixedly arranged on the support 8, a plurality of groups of workpieces 6 are arranged on the bearing plate 9, rotating shafts 11 penetrate through two sides of the support 8, the rotating shafts 11 are fixedly connected with the support 8, the support 8 moves along the circumferential direction of the support 4 through the rotating shafts 11, the rotating shafts 11 penetrate through the support 4 and are connected with a limiting mechanism 7, the limiting mechanism 7 comprises a first limiting rod 13, a second limiting rod 14 and a limiting bolt 16, the limiting bolt 16 vertically penetrates through the rotating shafts 11, the first limiting rod 13 is arranged on one side of the rotating shafts 11, the second limiting rod 14 is arranged at the lower end of the rotating shafts 11, the second limiting rod 14 is in contact with the limiting bolt 16, the bearing plate 9 is used for fixing the workpieces 6, and the number of fixing is 4, the processing efficiency is higher compared with the traditional processing efficiency, wherein the rotating height of the support 8 is related to the angle between the first limiting rod 13 and the second limiting rod 14 of the limiting mechanism 7, and the limiting mechanisms 7 are respectively arranged on the supports 4, and the limiting bolts 16 and the limiting rods realize the positioning function.

It is further described that the transmission gear 15 is sleeved on the rotation shaft 11, the rotation shaft 11 is fixedly connected with the transmission gear 15, the transmission gear 15 is meshed with the transmission chain 17, the transmission chain 17 is connected with the piston rods 12, the piston rods 12 move along the Y-axis direction of the support 4, wherein each cylinder is provided with a piston rod 12 for piston movement, and the movement track of each piston rod 12 is opposite to that of the other piston rod 12 when the piston rod 12 moves, and if one piston rod 12 moves downwards, the other piston rod 12 moves upwards, and the transmission chain 17 can be driven to reciprocate through the structure, so that the indexing effect is realized.

It is further described that the support 8 is connected to the second cylinder assembly 10, the support 8 is movably connected to a rotating shaft 11, the rotating shaft 11 penetrates through the support 4, a movable gap is formed between the rotating shaft 11 and the support 4, the first limit rod 13 and the second limit rod 14 are both fixedly arranged on the support 4, an included angle is formed between the first limit rod 13 and the second limit rod 14, the support 8 is in an overhead structure, the support 8 is parallel to the base 1, an inner bearing 18 for assisting the rotation of the rotating shaft 11 is arranged at the joint of the support 4 and the rotating shaft 11, the support 4 is used for supporting the support 8 and assisting the rotation of the rotating shaft 11 through the inner bearing 18, the measured angle is obtained through the limit rod fixed on the support 4, and when the limit bolt 16 on the rotating shaft 11 contacts the first limit rod 13 and the second limit rod 14, the position is changed The structure has a positioning function, and the whole structure adopts pneumatic driving to operate, so that the maintenance is convenient, and the manufacturing cost is low.

The specific working principle is as follows: in the using process, the base 1 is fixed on the used equipment, the supports 4 are symmetrically arranged on two sides of the base 1, the supports 4 are used for supporting the support 8, two sides of the support 8 penetrate through the rotating shaft 11 and are fixed on the support 8 and the support 4 through the rotating shaft 11, after the driving chain 17 is connected through the transmission gear 15 fixed on the rotating shaft 11, the driving chain 17 fixes the piston rod 12, the piston rod 12 moves up and down in the first cylinder component 3 to drive the rotating shaft 11, the rotating shaft 11 is fixed on the support 8, the bottom of the support 8 is provided with the second cylinder component 10, the upper end of the support 8 is fixed with the bearing plate 9, the bearing plate 9 is provided with a plurality of workpieces 6, the first limiting rod 13 and the second limiting rod 14 fixed on one side of the support 4 are used for the support 8 to have a positioning function in the rotating process, when the limiting bolt 16 penetrating through the rotating shaft 11 rotates, the support 8 and the support 4 are parallel with the support 4 under the action of the first limiting rod 13, after the limit bolt 16 contacts with the second limit rod 14, the support 8 is reset, and the structure achieves the required angle by driving the support 8 to rotate and positioning the limit mechanism 7 by using the air cylinder.

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. The utility model provides an indexing fixture which characterized in that: the structure comprises a structure main body, wherein the structure main body comprises a base and supports symmetrically arranged on the base, a swing mechanism is arranged between the supports, a limiting mechanism and a first air cylinder assembly are further arranged on one side of each support, a second air cylinder assembly is arranged at the bottom of the swing mechanism, the first air cylinder assembly is fixedly arranged on the base, a transmission mechanism is arranged between the limiting mechanism and the first air cylinder assembly and comprises a transmission gear, a transmission chain and a piston rod, and the piston rod is arranged in the first air cylinder assembly in an inserting manner;

2. An indexing fixture according to claim 1, wherein: the transmission gear is sleeved on the rotating shaft, the rotating shaft is fixedly connected with the transmission gear, the transmission gear is meshed with the transmission chain, the transmission chain is connected with the piston rod, and the piston rod moves along the Y-axis direction of the support.

3. An indexing fixture according to claim 1, wherein: the support is connected with the second air cylinder assembly, the support is movably connected with a rotating shaft, the rotating shaft penetrates through the supports, and a movable gap is formed between the rotating shaft and the supports.

4. An indexing fixture according to claim 1, wherein: the first limiting rod and the second limiting rod are fixedly arranged on the support, and an included angle is formed between the first limiting rod and the second limiting rod.

5. An indexing fixture according to claim 1, wherein: the support is an overhead structure and is parallel to the base.

6. An indexing fixture according to claim 1, wherein: and an inner side bearing for assisting the rotation of the rotating shaft is arranged at the joint of the support and the rotating shaft.