CN216504536U

CN216504536U - Adjustable machining clamp

Info

Publication number: CN216504536U
Application number: CN202122666688.5U
Authority: CN
Inventors: 程长兴
Original assignee: Suzhou Weinate Precision Machinery Co ltd
Current assignee: Suzhou Weinate Precision Machinery Co ltd
Priority date: 2021-11-04
Filing date: 2021-11-04
Publication date: 2022-05-13
Anticipated expiration: 2031-11-04

Abstract

The utility model relates to the technical field of machining equipment, and discloses an adjustable machining clamp which comprises a bottom plate, wherein a through hole is formed in the center of the bottom plate, a fixing ring is arranged at the upper end of the through hole, a telescopic rod is connected to the fixing ring in a penetrating mode, a movable ring is arranged on one side, close to the inner wall of the through hole, of the telescopic rod, a connecting rod is hinged to one end, far away from the movable ring, of the telescopic rod, the connecting rod is fixed to the end face of a rotating gear, the center of the rotating gear is arranged on the bottom plate through a rotating shaft, a plurality of limiting columns are arranged on the upper end, close to the edge, of the bottom plate in a circumferential array, the tops of the limiting columns are rotatably provided with rotating ring teeth, and the inner sides of the rotating ring teeth are meshed with the outer sides of the rotating gear. The synchronous clamping device is reasonable in structure and novel in design, and the synchronous rotation of the movable rings is realized through the mutual matching of the arranged rotary ring teeth and the rotating gears, so that the effective clamping and fixing effects on the outer wall of the workpiece are finally realized, and the workpiece is prevented from shaking in the machining process.

Description

Adjustable machining clamp

Technical Field

The utility model relates to the technical field of machining equipment, in particular to an adjustable machining clamp.

Background

The jig is a device for fixing a machining object to a correct position for receiving construction or inspection in a machining process, and in a broad sense, a device for quickly, conveniently and safely mounting a workpiece in any process may be called a jig. For example, welding jigs, inspection jigs, assembly jigs, machine tool jigs, etc., after finishing machining a fine workpiece, the workpiece needs to be polished, the workpiece needs to be clamped and fixed by the jigs during polishing, and a worker needs to polish the workpiece from different directions and positions.

However, the conventional clamp cannot achieve synchronous clamping and fixing in the process of fixing the workpiece, so that the outer side of the workpiece cannot achieve good clamping, and the workpiece is prone to shaking in the machining process, and therefore further improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an adjustable machining clamp to solve the problems in the background technology.

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

the utility model provides an adjustable machining anchor clamps, includes the bottom plate, bottom plate central point puts and is provided with the through-hole, and the solid fixed ring of through-hole upper end installation has the telescopic link, and the telescopic link is close to through-hole inner wall one side-mounting loose ring, and the loose ring one end is kept away from to the telescopic link articulates there is the connecting rod, and the connecting rod is fixed in on the terminal surface non-centre of a circle position of rolling gear, rolling gear central point puts through the axis of rotation setting on the bottom plate, the bottom plate upper end is close to marginal position circumference array and has a plurality of spacing posts, and spacing top of the post rotates and is provided with the rotatory circle tooth, and rotatory circle tooth inboard and rolling gear outside intermeshing.

As a modified scheme of the utility model: and four corners of the bottom plate are provided with fixing holes.

As a modified scheme of the utility model: limiting plates are symmetrically installed on the outer sides of the rotating gears, limiting grooves are formed in the limiting plates, clamping columns are slidably arranged in the limiting grooves, and the bottoms of the clamping columns are abutted to a plurality of clamping holes formed in the bottom plate.

As a modified scheme of the utility model: and the bottom of the rotating ring gear is provided with a ring groove matched with the limiting column.

As a modified scheme of the utility model: the telescopic link outside cover between activity ring and the solid fixed ring inner wall is equipped with expanding spring.

As a modified scheme of the utility model: the number of the rotating gears is at least 4.

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

the adjustable machining clamp is reasonable in structure and novel in design, and the rotating ring teeth and the rotating gears are mutually matched, so that synchronous rotation of a plurality of movable rings is realized, the effective clamping and fixing effects on the outer wall of a workpiece are finally realized, the workpiece is prevented from shaking in the machining process, the practicability is high, and the reliability is high.

Drawings

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

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

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

fig. 4 is a schematic view of the overall matching structure of the rotary ring gear of the present invention.

In the figure: 1. a base plate; 2. a fixing hole; 3. a limiting column; 4. a clamping hole; 5. rotating the ring gear; 6. a clamping column; 7. a limiting plate; 8. a fixing ring; 9. a movable ring; 10. a telescopic rod; 11. a connecting rod; 12. a rotating gear; 13. a rotating shaft; 14. a ring groove; 15. a limiting groove; 16. a through hole; 17. a telescoping spring.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore are not to be construed as limiting the utility model, and further, the terms "first", "second", etc., are used only for descriptive purposes and are not intended to indicate or imply relative importance or to implicitly indicate the number of technical features indicated, whereby the features defined as "first", "second", etc., may explicitly or implicitly include one or more of such features, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, and the two elements may be communicated with each other, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art through specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

Example 1

Referring to fig. 1 to 4, in the embodiment of the utility model, an adjustable machining fixture comprises a bottom plate 1, a through hole 16 is formed in the center of the bottom plate 1, and is used for enabling a workpiece to pass through and preventing the workpiece from interfering with the bottom plate 1 in a machining process, a fixing ring 8 is installed at the upper end of the through hole 16, a telescopic rod 10 is connected to the fixing ring 8 in a penetrating manner, a movable ring 9 is installed on one side, close to the inner wall of the through hole 16, of the telescopic rod 10, the movable rings 9 are matched with each other and are used for clamping and fixing the workpiece, a connecting rod 11 is hinged to one end, far away from the movable ring 9, of the telescopic rod 10, the connecting rod 11 is fixed to a non-circle center position on the end face of a rotating gear 12, the connecting rod 11 drives the telescopic rod 10 to move back and forth along the fixing ring 8 through rotation of the rotating gear 12, the movable ring 9 is finally moved along the radial direction of the fixing ring 8, and clamping and fixing effects on the workpiece are finally achieved, the central position of the rotating gear 12 is arranged on the bottom plate 1 through the rotating shaft 13, the upper end of the bottom plate 1 is provided with a plurality of limiting columns 3 close to the edge position circumference array, the tops of the limiting columns 3 are rotatably provided with rotating ring teeth 5, the inner sides of the rotating ring teeth 5 are meshed with the outer sides of the rotating gear 12, the rotating ring teeth 5 are meshed with the rotating gear 12 through rotation, and finally the moving clamping effect of the movable ring 9 is realized.

In one aspect of this embodiment, the four corners of the bottom plate 1 are provided with fixing holes 2 for fixing the whole bottom plate 1.

In the condition of this embodiment, limiting plate 7 is installed to the 12 outside symmetries of running gear, is provided with spacing groove 15 on the limiting plate 7, and the inside slip of spacing groove 15 is provided with

joint post

6, and 6 bottoms of joint post are contradicted in setting up a plurality of joint holes 4 on bottom plate 1, and is concrete, joint post 6 reciprocates along spacing groove 15 inside to the bottom is placed inside joint hole 4, has realized the limiting displacement to the turned angle of rotatory back ring tooth 5.

In the one aspect of this embodiment, rotatory ring tooth 5 bottom is provided with the annular 14 of mutually supporting with spacing post 3 for rotatory ring tooth 5 can not take place to rock along spacing post 3 rotation in-process, has further improved the reliability of device.

In one aspect of this embodiment, the number of the rotary gears 12 is at least 4, so that the outer wall of the workpiece can be more completely and uniformly clamped.

Example 2

In another embodiment of the present invention, the embodiment is different from the above-mentioned embodiment in that, an extension spring 17 is sleeved outside the extension rod 10 between the movable ring 9 and the inner wall of the fixed ring 8, specifically, for implementing the restoring action of the movable ring 9 in the direction away from the central axis of the through hole 16.

The working principle of the utility model is as follows: during operation, the workpiece to be fixed passes through the through hole 16, then the rotating ring gear 5 is rotated, and then the workpiece is meshed with the rotating gear 12, then under the cooperation of the connecting rod 11 and the telescopic rod 10, the movable ring 9 is used for effectively clamping the outer wall of the workpiece, after the position is determined, the clamping column 6 passes through the limiting groove 15, the bottom of the limiting groove is abutted inside the clamping hole 4, and the effective work of the whole clamp is realized.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. An adjustable machining clamp comprises a bottom plate (1) and is characterized in that, the central position of the bottom plate (1) is provided with a through hole (16), the upper end of the through hole (16) is provided with a fixed ring (8), the fixed ring (8) is connected with a telescopic rod (10) in a penetrating way, one side of the telescopic rod (10) close to the inner wall of the through hole (16) is provided with a movable ring (9), one end of the telescopic rod (10) far away from the movable ring (9) is hinged with a connecting rod (11), the connecting rod (11) is fixed on the end surface non-circle center position of the rotating gear (12), the center of the rotating gear (12) is arranged on the bottom plate (1) through a rotating shaft (13), the upper end of the bottom plate (1) is provided with a plurality of limiting columns (3) in a circumferential array at a position close to the edge, the tops of the limiting columns (3) are rotatably provided with rotating ring teeth (5), and the inner sides of the rotating ring teeth (5) are meshed with the outer sides of the rotating gears (12).

2. The adjustable machining fixture according to claim 1, characterized in that fixing holes (2) are arranged at four corners of the bottom plate (1).

3. The adjustable machining clamp according to claim 1, wherein limiting plates (7) are symmetrically mounted on the outer sides of the rotating gears (12), limiting grooves (15) are formed in the limiting plates (7), clamping columns (6) are slidably arranged in the limiting grooves (15), and bottoms of the clamping columns (6) abut against a plurality of clamping holes (4) formed in the bottom plate (1).

4. The adjustable machining clamp according to claim 3, characterized in that a ring groove (14) matched with the limiting column (3) is formed at the bottom of the rotary ring gear (5).

5. The adjustable machining clamp according to claim 4, characterized in that a telescopic spring (17) is sleeved outside the telescopic rod (10) between the movable ring (9) and the inner wall of the fixed ring (8).

6. The adjustable machining fixture according to claim 1 or 3, characterized in that the number of the turning gears (12) is at least 4.