CN217513742U

CN217513742U - Centering device for workpiece

Info

Publication number: CN217513742U
Application number: CN202221787527.XU
Authority: CN
Inventors: 陈小勇
Original assignee: Dongguan Sysantec Electronic Machinery Technology Co ltd
Current assignee: Dongguan Sysantec Electronic Machinery Technology Co ltd
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2022-09-30
Anticipated expiration: 2032-07-12

Abstract

The utility model discloses a centering device for work piece, including last centering platform, it is equipped with a plurality of centering guide slot structures with its central circumference array to go up the centering platform upper flat surface, every centering guide slot structure includes straight cam groove, the guided way, straight cam groove runs through centering platform setting, straight cam groove both sides are equipped with the guided way, sliding connection is equipped with the centering kicking block in every centering guide slot structure, centering kicking block bottom is equipped with the push rod, centering drive structure includes the driving-disc, it is equipped with the fixed axle perpendicularly to go up centering platform lower flat surface center department, the center of driving-disc is cup jointed on the fixed axle and the rotation is connected, be equipped with oblique cam groove on the driving-disc, the push rod passes straight cam groove and arranges in oblique cam groove. The utility model discloses an efficiency of guaranteeing the centering is higher owing to be equipped with a plurality of kicking blocks to can drive a plurality of kicking blocks simultaneously through the driving-disc to central synchronous motion, thereby carry out the centering when a plurality of directions to the work piece of putting into the center.

Description

Centering device for workpiece

Technical Field

The utility model relates to a work piece centering device field specifically indicates a centering device for work piece.

Background

In industrial production, workpieces are often required to be drilled, cut or welded, and before the workpieces are machined by existing mechanical equipment, the workpieces need to be properly centered by using mechanisms such as clamps and the like; for example, prior art application No. CN202120008211.5 discloses a workpiece centering and clamping mechanism, comprising: mounting a plate; the first clamping mechanism is slidably arranged on the mounting plate and comprises a first clamping mounting plate, a first clamping block and a first rack; the second clamping mechanism is slidably arranged on the mounting plate and comprises a second clamping mounting plate, a second clamping block and a second rack; and the transmission mechanism is arranged on the mounting plate and is connected with the first clamping mounting plate or the second clamping mounting plate.

However, the centering of the workpiece can be performed only by arranging the first clamping block and the second clamping block from two directions so that the first clamping block and the second clamping block are close to each other, and the centering accuracy cannot be guaranteed in other directions.

In view of the above, we propose a centering device for workpieces to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome above technical defect, provide a rational in infrastructure, the practicality is strong, all can carry out a centering device for the work piece of centering to the work piece in a plurality of directions.

In order to solve the technical problem, the utility model provides a technical scheme does: a centering device for a workpiece comprises an upper centering platform, a plurality of centering guide groove structures are arranged on the upper plane of the upper centering platform by a central circumferential array, each centering guide groove structure comprises a straight cam groove and a guide rail, the straight cam groove penetrates through the upper centering platform, guide rails are arranged on two sides of the straight cam groove, a centering ejector block is arranged in each centering guide groove structure in a sliding connection mode, the bottom of the centering ejector block is provided with a push rod, a plurality of centering ejector blocks can be synchronously driven by the centering driving structure to move towards the center of the centering platform, the centering driving structure comprises a driving disk, a fixed shaft is vertically arranged at the center of the lower plane of the upper centering platform, the center of the driving disk is sleeved on the fixed shaft and is rotationally connected with the fixed shaft, the driving disc is provided with an inclined cam groove, the inclined cam groove corresponds to the straight cam groove in position, and the push rod penetrates through the straight cam groove and is placed in the inclined cam groove.

Furthermore, the driving-disc lateral wall is equipped with the actuating arm, and centering drive structure still includes the telescopic link, the free end of telescopic link is connected with the tip of actuating arm is articulated, and the flexible driving-disc that makes of telescopic link takes place to rotate.

Furthermore, a top plate is arranged on one side, facing the center of the upper centering platform, of the centering top block.

Furthermore, the number of the straight cam grooves and the number of the inclined cam grooves are four correspondingly.

Furthermore, the number of the straight cam grooves and the number of the inclined cam grooves are three correspondingly.

Furthermore, the guide rails on the two sides are in a dovetail groove-shaped structure.

Compared with the prior art, the utility model the advantage lie in: the utility model discloses an efficiency of guaranteeing the centering is higher owing to be equipped with a plurality of kicking blocks to can drive a plurality of kicking blocks simultaneously through the driving-disc to central synchronous motion, thereby carry out the centering when a plurality of directions to the work piece of putting into the center.

Drawings

Fig. 1 is a schematic structural view of a centering device for a workpiece according to the present invention.

Fig. 2 is a schematic view of the top and bottom surfaces of the upper centering platform of the present invention.

Fig. 3 is a schematic structural diagram of the driving disc of the present invention.

Fig. 4 is a schematic structural diagram of the centering top block of the present invention.

Fig. 5 is a schematic sectional view of a-a in fig. 1 according to the present invention.

As shown in the figure: 1. an upper centering platform; 2. a straight cam groove; 3. a guide rail; 4. centering the top block; 5. a push rod; 6. a drive plate; 7. a fixed shaft; 8. a cam slot; 9. a drive arm; 10. a telescopic rod; 11. a top plate; 12. a dovetail groove.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. In which like parts are designated by like reference numerals.

In the description of the present invention, it is to be understood that the terms "center", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. Furthermore, the term "comprises" and any variations thereof is intended to cover non-exclusive inclusions.

A centering device for a workpiece is disclosed, as shown in FIG. 1, comprising an upper centering platform 1, wherein the upper plane of the upper centering platform 1 is provided with a plurality of centering guide groove structures in a central circumferential array, each centering guide groove structure comprises a straight cam groove 2 and a guide rail 3, the straight cam groove 2 penetrates through the upper centering platform 1, guide rails 3 are arranged on two sides of the straight cam groove 2, a centering ejector block 4 is arranged in each centering guide groove structure in a sliding connection manner, a push rod 5 is arranged at the bottom of the centering ejector block 4, the centering ejector block 4 can move along the direction of the guide rail 3 under the guidance of the guide rail 3, the centering ejector blocks 4 can be synchronously driven by a centering driving structure to move towards the center of the centering platform, the centering driving structure comprises a driving disc 6, a fixed shaft 7 is vertically arranged at the center of the lower plane of the upper centering platform 1, the center of the driving disc 6 is sleeved on the fixed shaft 7 and rotatably connected with the fixed shaft 7,

the side wall of the driving disc 6 is provided with a driving arm 9, the centering driving structure further comprises a telescopic rod 10, the free end of the telescopic rod 10 is hinged with the end part of the driving arm 9, and the driving disc 6 rotates due to the expansion and contraction of the telescopic rod 10; one end of the telescopic rod 10 is hinged to the frame body of the centering device, and the free end of the telescopic rod is hinged to the driving arm 9, so that the driving disc 6 can rotate when the telescopic rod 10 stretches.

An inclined cam groove 8 is formed in the driving disc 6, the inclined cam groove 8 corresponds to the position of the straight cam groove 2, and the push rod 5 penetrates through the straight cam groove 2 and is placed in the inclined cam groove 8; when the drive disc 6 rotates, all the inclined cam grooves 8 rotate relative to the straight cam grooves 2, so that the centering top block 4 moves under the guidance of the two cam grooves. And a top plate 11 is arranged on one side of the centering top block 4 facing the center of the upper centering platform 1, and the workpiece is pushed and centered through the top plate 11.

As a first embodiment, four straight cam grooves 2 and four inclined cam grooves 8 are provided, and as shown in the figure, four centering and ejecting blocks 4 are provided to simultaneously center the workpiece from four directions.

As another example, three straight cam grooves 2 and three inclined cam grooves 8 are provided, and in this case, three centering top blocks 4 are radially moved toward the center to center the workpiece from three directions.

As shown in fig. 5, the guide rails 3 on both sides are in a dovetail groove 12-shaped structure; the dovetail grooves 12 can prevent the centering thrust block from being separated from the guide rail 3.

The present invention and the embodiments thereof have been described above without limitation, and what is shown in the detailed description is only a part of the embodiments of the present invention, not all of the embodiments, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. A centering device for a workpiece comprises an upper centering platform (1), and is characterized in that a plurality of centering guide groove structures are arranged on the upper plane of the upper centering platform (1) in a central circumferential array manner, each centering guide groove structure comprises a straight cam groove (2) and a guide rail (3), the straight cam grooves (2) penetrate through the upper centering platform (1), the guide rails (3) are arranged on two sides of the straight cam grooves (2), a centering ejector block (4) is arranged in each centering guide groove structure in a sliding connection manner, a push rod (5) is arranged at the bottom of the centering ejector block (4), the centering ejector blocks (4) can be synchronously driven by a centering driving structure to move towards the center of the centering platform, the centering driving structure comprises a driving disc (6), a fixed shaft (7) is vertically arranged at the center of the lower plane of the upper centering platform (1), and the center of the driving disc (6) is sleeved on the fixed shaft (7) and rotatably connected with the fixed shaft, the driving disc (6) is provided with an inclined cam groove (8), the inclined cam groove (8) corresponds to the straight cam groove (2) in position, and the push rod (5) penetrates through the straight cam groove (2) and is placed in the inclined cam groove (8).

2. A centering device for workpieces as claimed in claim 1, characterized in that the side wall of the driving disk (6) is provided with a driving arm (9), the centering driving structure further comprises a telescopic rod (10), the free end of the telescopic rod (10) is hinged with the end of the driving arm (9), and the driving disk (6) is rotated by the telescopic rod (10) due to the telescopic action.

3. A centring device for workpieces according to claim 1, characterised in that the centring crown block (4) is provided with a crown plate (11) on the side facing the centre of the upper centring platform (1).

4. Centering device for workpieces according to claim 1, characterized in that said straight cam grooves (2), inclined cam grooves (8) are four in number.

5. A centering device for workpieces as claimed in claim 1, characterized in that said straight cam grooves (2), inclined cam grooves (8) are three in number.

6. A centering device for workpieces according to claim 1, characterized in that the guide rails (3) on both sides are of dovetail groove-like configuration (12).