CN206010504U - The multidirectional linkage clamping tool of mechanical screwing type - Google Patents

Abstract

The utility model discloses a mechanical screwing type multi-directional linkage clamping tool, which comprises a supporting base, a hook-shaped pressing plate, a pressing bolt, a pressing nut and a pressing plate return spring; the supporting base is provided with an auxiliary positioning opening; the auxiliary positioning opening There is an arc-shaped limit pressure plate inside; the support base located inside the auxiliary positioning port is equipped with a wedge-shaped transmission pin I that is horizontally set against the lower part of the arc-shaped limit pressure plate, and a wedge-shaped transmission pin I is also sleeved and installed on the wedge-shaped transmission pin I. Return spring; wedge-shaped driving pin II is provided at the position corresponding to the wedge-shaped slope structure of wedge-shaped driving pin I inside the support base, the bottom end of wedge-shaped driving pin II cooperates with the wedge-shaped inclined-plane structure of wedge-shaped driving pin I, and the top end of wedge-shaped driving pin II passes through the support The base also leans against the bottom plane of the hook-shaped pressing plate. The mechanical screw-type multi-directional linkage clamping tool has a simple structure and is easy to install, which can ensure that the plate-shaped workpiece is firmly clamped on the tooling table of the machine tool, and is especially suitable for clamping the plate-shaped workpiece with a right-angle or corner structure.

Description

Mechanical screw-type multi-directional linkage clamping tooling

technical field

The utility model relates to a clamping tool, in particular to a mechanically screwed multi-directional linkage clamping tool for clamping right-angled or corner plate-like workpieces during mechanical processing, and belongs to the technical field of mechanical processing.

Background technique

The full name of tooling is process equipment, which is a device used to fix the parts to be processed for accurate processing. It is not only the production equipment and tools in the production enterprise, but also the equipment to cooperate with the production equipment and personnel to complete the process production requirements. Most of the tooling is specially made according to the characteristics of their respective products.

When drilling, milling and other mechanical processing for right-angle or corner plate-type workpieces, it is usually directly clamped and installed on the tooling table of machine tools such as drilling machines or milling machines. Because right-angle or corner plate-type workpieces have asymmetrical L-shaped structure, so the workpiece needs to be positioned at multiple points on the tooling table of the machine tool. Usually, the one-way clamping or multi-directional non-linkage clamping fixture of the structural form has uneven clamping force when positioning and clamping the workpiece. Complicated and labor-intensive clamping, and the clamping force of multi-point positioning and separate clamping is unbalanced, and the clamping is not reliable. It is easy to cause misalignment of the parts that have been aligned and positioned during the clamping process, which will affect the positioning effect and processing. precision.

Contents of the invention

Aiming at the problems existing in the above-mentioned prior art, the utility model provides a mechanically screwed multi-directional linkage clamping tool, which has a simple structure and is easy to install, and can ensure that the plate-shaped workpiece is firmly clamped on the tooling table of the machine tool, and is especially suitable for clamping Tighten plate-shaped workpieces with right-angle or corner structures.

The mechanical screwing type multi-directional linkage clamping tool of the utility model includes a support base, a hook-shaped pressing plate, a pressing bolt, a pressing nut and a pressing plate reset spring;

One end of the hold-down bolt is fixedly connected to the support base, and the other end passes through the hook-shaped structure and the mounting hole of the hook-shaped pressure plate arranged downward is threadedly connected with the hold-down bolt, and the hook-shaped structure of the hook-shaped pressure plate corresponds to the L-shaped workpiece. The compression position; the pressure plate return spring is sleeved on the compression bolt, one end leans against the support base, and the other end leans against the hook-shaped pressure plate;

The position corresponding to the L-shaped workpiece on the support base is provided with an auxiliary positioning opening; the auxiliary positioning opening is provided with a vertically arranged, arc-shaped limiting pressure plate hingedly installed in the auxiliary positioning opening; Inside the support base 1 on the inner side of the mouth, at the lower part of the corresponding arc-shaped limit pressure plate below the hinge point of the arc-shaped limit pressure plate, there is a horizontal setting that leans against the lower part of the arc-shaped limit pressure plate and is connected to the inside of the support base. Wedge-shaped transmission pin Ⅰ, one end of wedge-shaped transmission pin Ⅰ inside the support base is provided with a wedge-shaped slope structure arranged in the up and down direction, wedge-shaped transmission pin Ⅰ is also sleeved with a wedge-shaped pin return spring, and one end of the wedge-shaped pin return spring leans against the support base The upper end and the other end lean against the wedge-shaped transmission pin I; inside the support base, the position corresponding to the wedge-shaped slope structure of the wedge-shaped transmission pin I in the vertical direction is provided with a wedge-shaped transmission pin II pierced through the inside of the support base, and the bottom of the wedge-shaped transmission pin II The end is provided with a wedge-shaped slope structure matched with the wedge-shaped slope structure of the wedge-shaped driving pin I, and the top end of the wedge-shaped driving pin II passes through the supporting base and leans against the bottom plane of the hook-shaped pressing plate.

As a further improvement of the present utility model, the bottom of the arc-shaped limit press plate is provided with an arc-shaped limit press plate return tension spring, and one end of the arc-shaped limit press plate reset tension spring is connected to the bottom of the arc-shaped limit press plate, and the other is One end is connected with the supporting base on one side of the wedge-shaped driving pin I.

As a further improvement of the utility model, the position corresponding to the side of the wedge-shaped transmission pin II on the support base is provided with a positioning hole arranged along the radial direction of the wedge-shaped transmission pin II and a positioning pin installed on the positioning hole. A positioning groove arranged along the axial direction of the wedge-shaped transmission pin II is provided at a position corresponding to the positioning pin on the wedge-shaped transmission pin II.

Compared with the prior art, the mechanical screw-type multi-directional linkage clamping tool is equipped with an auxiliary positioning port corresponding to the position of the L-shaped workpiece on the support base, and a hinged arc-shaped limiting pressure plate is provided in the auxiliary positioning port, and The support base located inside the auxiliary positioning opening is equipped with a wedge-shaped transmission pin I that leans against the lower part of the arc-shaped limit pressure plate, and a wedge-shaped inclined plane structure wedge-shaped between the bottom end of the wedge-shaped transmission pin II vertically arranged inside the support base and the wedge-shaped transmission pin I. The inclined surface fits, so when the compression nut is tightened, the hook-shaped pressure plate moves down to compress the L-shaped workpiece, and at the same time drives the wedge-shaped transmission pin II to move down through the wedge-shaped inclined surface to push the wedge-shaped transmission pin I out so that the arc-shaped limit pressure plate moves along its The hinged shaft rotates and compresses the L-shaped workpiece, and then realizes the hook-shaped pressure plate and the arc-shaped limit pressure plate to generate clamping force at the same time, and realizes the bidirectional clamping of the L-shaped workpiece. The clamping force of this bidirectional clamping comes from a compression nut Screwing action, so the clamping force is uniform, the positioning is simple, the clamping labor intensity is relatively small, and the clamping is firm, which can prevent the L-shaped workpiece that has been aligned and positioned from being misaligned again during the clamping process, thereby ensuring the positioning effect and Machining accuracy, especially suitable for clamping plate-shaped workpieces with right-angle or corner structures.

Description of drawings

Fig. 1 is a structural representation of the utility model.

Serial numbers and names in the figure: 1. Support base, 11. Auxiliary positioning port, 12. Arc-shaped limit pressure plate, 13. Wedge-shaped drive pin I, 14. Wedge-shaped pin return spring, 15. Wedge-shaped drive pin II, 16. Arc-shaped Limit pressing plate reset extension spring, 17, location pin, 2, hook-shaped pressing plate, 3, hold down bolt, 4, hold down nut, 5, press plate return spring, 6, L-shaped workpiece.

detailed description

Below in conjunction with accompanying drawing, the utility model is further described.

As shown in FIG. 1 , the mechanical screw-type multi-directional linkage clamping tool includes a support base 1 , a hook-shaped pressure plate 2 , a compression bolt 3 , a compression nut 4 and a pressure plate return spring 5 .

One end of the hold-down bolt 3 is fixedly connected to the support base 1, and the other end passes through the mounting hole of the hook-shaped pressing plate 2 arranged downward through the hook-shaped structure and is threadedly connected with the hold-down bolt 3. The structure corresponds to the pressing position of L-shaped workpiece 6;

The position corresponding to the L-shaped workpiece 6 on the support base 1 is provided with an auxiliary positioning opening 11; the auxiliary positioning opening 11 is provided with a vertically arranged arc-shaped limiter hingedly installed in the auxiliary positioning opening 11, and an arc-shaped structure. Position pressing plate 12; inside the support base 1 inside the auxiliary positioning port 11, the position of the corresponding arc-shaped limiting pressing plate 12 below the hinge point of the arc-shaped limiting pressing plate 12 is provided with a horizontal setting to lean against the arc-shaped limiting pressing plate 12 The wedge-shaped transmission pin I13 in the lower position is connected to the inside of the support base 1. One end of the wedge-shaped transmission pin I13 located inside the support base 1 is provided with a wedge-shaped slope structure arranged in the upper and lower directions. The wedge-shaped transmission pin I13 is also sleeved and installed with a wedge-shaped pin. Return spring 14, one end of the wedge pin return spring 14 leans against the supporting base 1, and the other end leans against the wedge-shaped transmission pin I13; inside the support base 1, the position corresponding to the wedge-shaped inclined plane structure of the wedge-shaped transmission pin I13 in the vertical direction is provided with a wear The wedge-shaped transmission pin II15 connected to the inside of the support base 1, the bottom end of the wedge-shaped transmission pin II15 is provided with a wedge-shaped slope structure that matches the wedge-shaped slope structure of the wedge-shaped transmission pin I13, and the top end of the wedge-shaped transmission pin II15 passes through the support base 1 and leans against it On the bottom plane of the hook platen 2.

When the mechanical screw-type multi-directional linkage clamping tool is in use, the support base 1 is first fixedly installed on the tooling table of the machine tool, as shown in Figure 1, and then the short side of the L-shaped structure of the L-shaped workpiece 6 is set downward. into the auxiliary positioning port 11, and move inward to lean against the inner wall of the auxiliary positioning port 11, then press the hook-shaped pressure plate 2 on the long side of the L-shaped structure of the L-shaped workpiece 6, and finally tighten the compression nut step by step 4. During the tightening process of the compression nut 4, the hook-shaped pressure plate 2 is driven to move down to compress the pressure plate return spring 5, and the hook-shaped structure of the hook-shaped pressure plate 2 is pressed against the long side of the L-shaped structure of the L-shaped workpiece 6. At the same time, the hook-shaped pressure plate 2. During the downward movement, the wedge-shaped transmission pin II15 is driven to move downward in the vertical direction. The wedge-shaped transmission pin II15 cooperates with the wedge-shaped inclined surface to push the wedge-shaped transmission pin I13 out to the outside to compress the wedge-shaped pin return spring 14, and the arc-shaped limit pressure plate 12 moves along the vertical direction. Its hinge center rotates clockwise, and the short side of the L-shaped structure with its top against the L-shaped workpiece 6 moves inward during the rotation of the arc-shaped limit pressure plate 12, and moves inwardly against the inner wall of the auxiliary positioning port 11 and exerts a clamping force. Furthermore, the hook-shaped pressing plate 2 and the arc-shaped limiting pressing plate 12 can simultaneously generate clamping force, thereby realizing bidirectional clamping of the L-shaped workpiece 6 .

After the processing is completed, reversely rotate and disassemble the compression nut 4. Under the elastic force of the pressure plate return spring 5, the hook-shaped pressure plate 2 moves upward to reset and break away from the L-shaped workpiece 6. Insert, and push the wedge-shaped drive pin II15 to move upwards and reset through the wedge-shaped inclined surface, and take out the processed L-shaped workpiece 6.

In order to automatically reset the arc-shaped limit pressing plate 12 when the compression nut 4 is loosened, as a further improvement of the utility model, the bottom of the arc-shaped limit pressing plate 12 is provided with an arc-shaped limit pressing plate reset tension spring 16 , one end of the arc-shaped limit pressing plate reset tension spring 16 is connected to the bottom of the arc-shaped limit pressing plate 12, and the other end is connected to the support base 1 on the side of the wedge-shaped transmission pin I13, and the arc is limited when the compression nut 4 is loosened. Pressing plate reset extension spring 16 can pull the arc-shaped position-limiting pressing plate 12 to make it rotate and reset around its hinge axis under the action of elastic force.

In order to prevent the wedge-shaped transmission pin II15 from moving down transitionally from the wedge-shaped slope structure of the wedge-shaped transmission pin I13 during the process of tightening the compression nut 4, and then stuck and unable to reset, as a further improvement of the utility model, the above-mentioned support base 1 The position corresponding to the side of the wedge-shaped transmission pin II15 is provided with a positioning hole arranged along the radial direction of the wedge-shaped transmission pin II15 and a positioning pin 17 installed on the positioning hole. The position corresponding to the positioning pin 17 on the wedge-shaped transmission pin II15 is provided with a The wedge-shaped driving pin II15 is a positioning groove set in the axial direction; during the process of tightening the compression nut 4, the wedge-shaped driving pin II15 moves vertically down to the top of the positioning groove and abuts against the positioning pin 17. After that, the wedge-shaped driving pin II15 stops moving down, loosen In the process of opening the compression nut 4, the wedge-shaped driving pin II 15 vertically moves up to the bottom end of the positioning groove and leans against the positioning pin 17, and then the wedge-shaped driving pin II 15 stops moving up.

The mechanical screw-type multi-directional linkage clamping tool has an auxiliary positioning port 11 on the position corresponding to the L-shaped workpiece 6 on the supporting base 1, and a hinged arc-shaped limit pressure plate 12 is provided in the auxiliary positioning port 11, and is located on the auxiliary positioning port 11. The inside of the support base 1 inside the positioning opening 11 is provided with a wedge-shaped transmission pin I13 that leans against the lower part of the arc-shaped limit pressure plate 12, and a wedge-shaped slope between the bottom end of the wedge-shaped transmission pin II15 vertically arranged inside the support base 1 and the wedge-shaped transmission pin I13. Structural wedge-shaped slope fits, so when the compression nut 4 is tightened, the hook-shaped pressure plate 2 moves down to press the L-shaped workpiece 6, and at the same time drives the wedge-shaped transmission pin Ⅱ15 to move down through the wedge-shaped slope to push out the wedge-shaped transmission pin Ⅰ13 to make an arc. The limit pressing plate 12 rotates and compresses the L-shaped workpiece 6 along its hinge axis, and then realizes that the hook-shaped pressing plate 2 and the arc-shaped limiting pressing plate 12 simultaneously generate clamping force to realize bidirectional clamping of the L-shaped workpiece 6. This bidirectional clamping The clamping force comes from the tightening action of a compression nut 4, so the clamping force is uniform, the positioning is simple, the clamping labor intensity is relatively small, and the clamping is firm, which can prevent the L-shaped workpiece 6 that has been aligned and positioned from being clamped Misalignment occurs again during the tightening process, thereby ensuring the positioning effect and processing accuracy, especially suitable for clamping plate-shaped workpieces with right-angle or corner structures.

Claims (3)

1. the multidirectional linkage clamping tool of a kind of mechanical screwing type, including support base（1）, hook pressure plate（2）, hold-down bolt（3）、 Clamp nut（4）With pressing plate back-moving spring（5）；Described hold-down bolt（3）One end is fixedly connected on support base（1）Upper, another One end is through the down-set hook pressure plate of hook-shape structure（2）Installing hole and hold-down bolt（3）Screw thread is connected, hook-type pressure Plate（2）The corresponding L-shaped workpiece of hook-shape structure（6）Compacted position；Described pressing plate back-moving spring（5）It is socketed in hold-down bolt （3）Upper, one end acts against support base（1）The upper, other end acts against hook pressure plate（2）On；Characterized in that,

Described support base（1）Upper correspondingly L-shaped workpiece（6）Position be provided with auxiliary positioning mouth（11）；Auxiliary positioning mouth（11） Inside be provided with being vertically arranged, be hingedly mounted on auxiliary positioning mouth（11）The arc-shaped limit pressing plate of interior, arcuate structure（12）；It is located at Auxiliary positioning mouth（11）The support base of inner side（1）Internal, be located at arc-shaped limit pressing plate（12）Corresponding arc below pin joint Spacing pressing plate（12）The position of bottom is provided with to be horizontally disposed with and acts against arc-shaped limit pressing plate（12）Lower position, wear and be connected on support Base（1）Internal wedge shape trundle I（13）, wedge shape trundle I（13）It is located at support base（1）Internal one end is provided with along upper The tapered ramp structure that lower direction is arranged, wedge shape trundle I（13）On also socket wedge pin back-moving spring is installed（14）, wedge shape Pin back-moving spring（14）One end acts against support base（1）The upper, other end acts against wedge shape trundle I（13）On；Support base （1）The corresponding wedge shape trundle I of internal, vertical direction（13）The position of tapered ramp structure is provided with to wear and is connected on support base（1）Interior The wedge shape trundle II in portion（15）, wedge shape trundle II（15）Bottom be provided with and wedge shape trundle I（13）Tapered ramp knot The tapered ramp structure that structure coordinates, wedge shape trundle II（15）Top pass support base（1）And act against hook pressure plate（2） Baseplane on.

2. the multidirectional linkage clamping tool of mechanical screwing type according to claim 1, it is characterised in that described arc-shaped limit Pressing plate（12）Bottom be provided with arc-shaped limit pressing plate reset tension spring（16）, arc-shaped limit pressing plate reset tension spring（16）One end and arc Spacing pressing plate（12）Bottom connection, the other end be located at wedge shape trundle I（13）The support base of side（1）Connection.

3. the multidirectional linkage clamping tool of mechanical screwing type according to claim 1 and 2, it is characterised in that described support Base（1）Upper correspondingly wedge shape trundle II（15）The position of side is provided with along wedge shape trundle II（15）What radial direction was arranged determines Position hole and the alignment pin on location hole（17）, described wedge shape trundle II（15）Upper correspondingly alignment pin（17）Position It is provided with along wedge shape trundle II（15）The locating slot that axial direction is arranged.