CN218927576U

CN218927576U - Multi-point simultaneous clamping mechanism

Info

Publication number: CN218927576U
Application number: CN202223598898.6U
Authority: CN
Inventors: 张波; 于凯; 郑俭; 高华; 孙倩
Original assignee: Wuxi Novo Automation Technology Corp Ltd
Current assignee: Wuxi Novo Automation Technology Corp Ltd
Priority date: 2022-12-31
Filing date: 2022-12-31
Publication date: 2023-04-28
Anticipated expiration: 2032-12-31

Abstract

The utility model relates to the technical field of tool clamps, in particular to a multipoint simultaneous clamping mechanism, which comprises a substrate, wherein a plurality of fixed blocks are arranged on the substrate around the outer edge of a workpiece, a plurality of clamping guide blocks which move towards the workpiece in a telescopic way are arranged on each fixed block in a penetrating way, movable check blocks are arranged on the outer sides of the fixed blocks at intervals in parallel, the movable check blocks can translate along the length direction of the movable check blocks, each movable check block is sequentially connected through a connecting rod plate, one movable check block is driven by a driving piece, so that each movable check block is linked, concave-convex curved surfaces are formed on the movable check block corresponding to each clamping guide block, and when the clamping guide blocks are propped against the convex surfaces of the movable check blocks, the clamping guide blocks extend out to clamp the workpiece; when the clamp guide blocks are abutted against the concave surfaces of the moving stop blocks, the clamp guide blocks retract to release the workpiece. The mechanism can clamp the outer edge of the workpiece at multiple points simultaneously by only one cylinder, and is convenient to operate and reliable to fix.

Description

Multi-point simultaneous clamping mechanism

Technical Field

The utility model relates to the technical field of tool clamps, in particular to a multipoint simultaneous clamping mechanism.

Background

Before CNC processes the product, need press from both sides tightly the product in order to guarantee positioning accuracy, improve processingquality. Besides adopting the fixing modes of an electromagnet, a screw fastener and the like, the outer edge clamping method is also adopted, namely, the outer side surface of the workpiece is pressed, so that the purpose of clamping is achieved. Taking a rectangular workpiece as an example, a jacking action is generally required on four sides, for example, two or three cylinders are required on each side, so that opposite clamping is realized, and the workpiece is clamped. However, the plurality of cylinders increases the complexity of the mechanism, and the requirement for the synchronism of each cylinder is high when clamping, the operation is troublesome, the failure rate is high, and further optimization is required.

Disclosure of Invention

Based on the above problems, the present utility model aims to provide a multi-point simultaneous clamping mechanism acting on the outer edge of a workpiece, and reduce the requirement of a driving piece, so as to meet the use requirement.

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

the utility model provides a multiple spot clamping mechanism simultaneously, it includes the base plate, be provided with a plurality of fixed block on the base plate around the outer fringe of work piece, wear to be equipped with a plurality of clamp guide block towards the flexible action of work piece on every fixed block, and the outside of fixed block is provided with the removal dog, remove dog and fixed block parallel interval arrangement, and remove the dog and only can translate along its length direction, each remove dog and connect gradually through the link plate, and one of them remove the dog and pass through the driving piece and drive, and then make each remove the dog linkage, it has concave-convex curved surface to correspond each clamp guide block shaping on the removal dog, when clamp guide block supports on the convex surface of removal dog, clamp guide block stretches out thereby clamp the work piece; when the clamp guide blocks are abutted against the concave surfaces of the moving stop blocks, the clamp guide blocks retract to release the workpiece.

Particularly, the end part of the clamping guide block, which is in contact with the workpiece, is an action end, a stand column is arranged on the side surface of the action end, a fixed column opposite to the stand column is arranged on the fixed block, and the stand column is connected with the fixed column through a tension spring, so that the clamping guide block is kept in contact with the concave-convex surface of the movable stop block.

Specifically, the end of the clamping guide block, which is in contact with the movable stop block, is a driving end, and a roller in rolling contact with the concave-convex curved surface of the movable stop block is arranged on the driving end.

In particular, the clamping guide block is square column-shaped, and square holes for the clamping guide block to pass through are formed in the fixed block.

Particularly, the substrate is provided with a support slide block corresponding to the arrangement position of the movable stop block, the bottom of the movable stop block is provided with a guide rail, and the guide rail is arranged on the support slide block in a supporting manner and matched with the support slide block to slide.

In particular, the driving piece is a cylinder, and a piston rod of the cylinder is connected with the movable stop block of the head end.

In particular, the base plate is provided with a stop block limiting the travel of the end movement stop.

In summary, the multi-point simultaneous clamping mechanism has the beneficial effects that the multi-point simultaneous clamping mechanism designs the linked movable stop blocks to act on each clamping guide block, so that the outer edge of a workpiece can be simultaneously clamped at multiple points by only one cylinder, the mechanism structure is simplified, the operation is convenient and fast, the fixing is reliable, and a new idea is provided for clamping the workpiece.

Drawings

FIG. 1 is a schematic diagram of a multi-point simultaneous clamping mechanism according to an embodiment of the present utility model;

FIG. 2 is an enlarged view at A in FIG. 1;

FIG. 3 is a schematic view of a multi-point simultaneous clamping mechanism according to an embodiment of the present utility model clamping a workpiece;

FIG. 4 is a schematic illustration of a multi-point simultaneous clamping mechanism according to an embodiment of the present utility model as it is released from a workpiece.

In the figure:

1-a substrate; 2-a fixed block; 3-clamping the guide block; 4-moving a stop; 5-supporting a slider; 6, a guide rail; 7-concave-convex curved surfaces; 8-stand columns; 9-fixing the column; 10-a tension spring; 11-a roller; 12-a connecting rod plate; 13-a driving member; 14-stop blocks.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar parts throughout, or parts having like or similar functions. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be interpreted broadly, as for example, they may be fixedly connected, or may be detachably connected, or may be electrically connected, or may be directly connected, or may be indirectly connected through an intermediary, or may be in communication with one another in two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present utility model, unless explicitly stated and limited otherwise, a first feature "above" or "below" a second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature not being in direct contact but being in contact by another feature therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

Referring to fig. 1 to 4, the present preferred embodiment provides a multi-point simultaneous clamping mechanism, for example, clamping a rectangular workpiece, including a base plate 1, a plurality of fixing blocks 2 are disposed on the base plate 1 around the outer edge of the workpiece, four examples are taken here, each fixing block 2 is perforated with a plurality of clamping guide blocks 3, five examples are taken here on the length side and two examples are taken here on the width side, and the clamping guide blocks 3 stretch toward the workpiece to achieve clamping or loosening of the workpiece.

The outside of fixed block 2 is provided with removes dog 4, removes dog 4 and fixed block 2 parallel interval and arranges, and removes dog 4 and only can translate along its length direction, and the position of arranging that corresponds to remove dog 4 on the base plate 1 is provided with support slider 5 specifically, and the bottom of removing dog 4 is provided with guide rail 6, and guide rail 6 erects on support slider 5 and cooperates the slip.

The movable stop block 4 is provided with concave-convex curved surfaces 7 corresponding to the clamping guide blocks 3, and when the clamping guide blocks 3 are abutted against the convex surfaces of the movable stop block 4, the clamping guide blocks 3 extend out to clamp a workpiece; when the clamp guide 3 abuts against the concave surface of the moving block 4, the clamp guide 3 is retracted to release the work.

The end part of the clamping guide block 3, which is contacted with the workpiece, is an action end, a stand column 8 is arranged on the side surface of the action end, a fixed column 9 opposite to the stand column 8 is arranged on the fixed block 2, and the stand column 8 is connected with the fixed column 9 through a tension spring 10, so that the clamping guide block 3 is kept in contact with the concave-convex surface of the movable stop block 4; the end of the clamping guide block 3, which is in contact with the movable stop block 4, is a driving end, and a roller 11 in rolling contact with the concave-convex curved surface 7 of the movable stop block 4 is arranged on the driving end, so that the reciprocating translation motion of the movable stop block 4 relative to the fixed block 2 is converted into the telescopic motion of the clamping guide block 3.

In particular, the clamping guide block 3 is preferably square column-shaped, and square holes for allowing the clamping guide block 3 to pass through are formed in the fixed block 2, so that the clamping guide block 3 can stably and accurately act.

In addition, each movable stop block 4 is sequentially connected through the connecting rod plate 12, one movable stop block 4 is driven by the driving piece 13, so that each movable stop block 4 is linked, the driving piece 13 is preferably an air cylinder, a piston rod of the air cylinder is connected with the movable stop block 4 at the head end, and therefore, each clamping guide block 3 can be simultaneously extended or retracted only by driving of one air cylinder, driving cost is reduced, and driving action is simplified.

Further, the base plate 1 is provided with a stop block 14 limiting the travel of the end moving block 4, so that excessive translation of the moving block 4 is avoided, and further, the clamping guide block 3 is prevented from crossing the convex surface of the moving block 4 and reaching the adjacent concave surface, so that the clamping function is disabled.

In conclusion, the multi-point simultaneous clamping mechanism designs the linked movable stop blocks to act on each clamping guide block, so that the outer edge of a workpiece can be simultaneously clamped at multiple points by only one cylinder, the mechanism structure is simplified, the operation is convenient and fast, the fixing is reliable, and a new thought is provided for workpiece clamping.

The above embodiments merely illustrate the basic principles and features of the present utility model, and the present utility model is not limited to the above embodiments, but can be variously changed and modified without departing from the spirit and scope of the present utility model, which is within the scope of the present utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The multipoint simultaneous clamping mechanism is characterized by comprising a substrate, wherein a plurality of fixed blocks are arranged on the substrate around the outer edge of a workpiece, a plurality of clamping guide blocks which move towards the workpiece in a telescopic mode are arranged on each fixed block in a penetrating mode, moving check blocks are arranged on the outer sides of the fixed blocks at intervals in parallel, the moving check blocks can translate along the length direction of the fixed blocks, the moving check blocks are sequentially connected through connecting rod plates, one moving check block is driven by a driving piece, and then the moving check blocks are linked, concave-convex curved surfaces are formed on the moving check blocks corresponding to the clamping guide blocks, and when the clamping guide blocks are propped against the convex surfaces of the moving check blocks, the clamping guide blocks extend out to clamp the workpiece; when the clamp guide blocks are abutted against the concave surfaces of the moving stop blocks, the clamp guide blocks retract to release the workpiece.

2. The multipoint simultaneous clamping mechanism according to claim 1, wherein an end portion of the clamping guide block, which is in contact with the workpiece, is an acting end, a column is arranged on a side surface of the acting end, a fixing column opposite to the column is arranged on the fixing block, and the column is connected with the fixing column through a tension spring, so that the clamping guide block is kept in contact with the concave-convex surface of the movable stop block.

3. The multipoint simultaneous clamping mechanism according to claim 1, wherein an end of the clamping guide block, which is in contact with the moving block, is a driving end, and a cylinder in rolling contact with the concave-convex curved surface of the moving block is provided on the driving end.

4. The multipoint simultaneous clamping mechanism according to claim 1, wherein the clamping guide block is square-column-shaped, and square holes for allowing the clamping guide block to pass through are formed in the fixed block.

5. The multipoint simultaneous clamping mechanism according to claim 1, wherein a supporting slide block is arranged on the base plate at a position corresponding to the arrangement position of the moving stop block, a guide rail is arranged at the bottom of the moving stop block, and the guide rail is arranged on the supporting slide block in a supporting sliding manner.

6. The simultaneous multipoint clamping mechanism according to claim 1, wherein the driving member is a cylinder, and a piston rod of the cylinder is connected to the moving stopper of the head end.

7. The simultaneous multipoint clamping mechanism according to claim 6, wherein the base plate is provided with a stop block limiting a travel of the end movement block.