CN207344427U - Drag hook clamping device - Google Patents

Abstract

The utility model discloses a drag hook clamping device for press from both sides tight work piece. The drag hook clamping device comprises a bracket, wherein the bracket comprises a panel; a linear driver installed on the bottom surface of the panel; one surface of the pulling plate is connected with the linear driver; the plurality of drag hook mechanisms comprise drag rods and drag hooks arranged at the first ends of the drag rods, and the second ends of the drag rods are pivoted with the pull plate; the pull rod penetrates through the panel, and the pull hook is positioned above the panel; the pull rod comprises a plurality of pull hook positioning mechanisms, each pull hook positioning mechanism comprises a plurality of positioning blocks and a plurality of shifting holes, each shifting hole is formed in the corresponding pull rod, and each shifting hole comprises a first strip-shaped hole, a second strip-shaped hole and a communication hole for communicating the first strip-shaped hole with the second strip-shaped hole; the positioning block is arranged on the panel, a U-shaped groove is formed in the positioning block, a part of the pull rod is contained in the U-shaped groove, and a positioning pin is movably connected with the positioning block and the pull rod. The drag hook clamping device can completely compress the workpiece, prevent the workpiece from shifting and ensure the normal processing of the workpiece.

Description

Pull hook clamping device

technical field

The utility model relates to the technical field of clamps, in particular to a drag hook clamping device.

Background technique

In the process of processing workpieces, fixtures are often used to clamp workpieces. For the clamping of flat workpieces, it is usually directly compressed by a pressure plate. This type of clamp has the disadvantage of inconsistent clamping force, which may cause displacement during the processing of the workpiece, resulting in defective products and prolonging the processing time. , reduce processing efficiency.

Utility model content

Based on this, the utility model provides a drag hook clamping device, which can completely compress the workpiece, prevent the workpiece from shifting, and ensure the normal processing of the workpiece; the processing time is less and the efficiency is high.

In order to realize the purpose of the utility model, the utility model adopts the following technical solutions:

A hook clamping device for clamping workpieces, comprising:

a bracket comprising a panel for placing a workpiece;

a linear drive mounted on the bottom of the panel;

a pull plate, one side of the pull plate is connected to the linear drive;

Several pull hook mechanisms, the pull hook mechanism includes a pull rod and a pull hook arranged at the first end of the pull rod, the second end of the pull rod is pivotally connected with the pull plate, so as to be driven by the linear driver to move closer to or away from the pull plate. The direction of the panel moves; the pull rod passes through the panel, the pull hook is located above the panel, and the pull hooks of several pull hook mechanisms are set towards the center of the panel to enclose the workpiece clamping position;

Several draw hook positioning mechanisms, the draw hook positioning mechanism includes several positioning blocks and some displacement holes; the displacement holes are opened on the pull rod, and the displacement holes include a first strip-shaped hole, a second strip-shaped hole and A communication hole connecting the first strip-shaped hole and the second strip-shaped hole, the first strip-shaped hole and the second strip-shaped hole are arranged along the length direction of the pull rod, and are connected to each other along the width direction of the pull rod Staggered, the first strip-shaped hole is farther away from the center of the panel than the second strip-shaped hole; the positioning block is arranged on the panel, and a U is opened on the side of the positioning block facing the center of the panel. A part of the pull rod is accommodated in the U-shaped groove, a limiting hole communicating with the U-shaped groove is opened on the positioning block, and a positioning pin penetrates the limiting hole and the displacement hole to The positioning block is movably connected with the pull rod.

In the above hook clamping device, the workpiece is placed on the panel. When the linear actuator is opened, the pull plate is pushed downward, and the pull hook moves down under the drive of the pull rod, so that several pull hooks press the workpiece tightly. At this time, the positioning pin is located far away In the first strip-shaped hole in the center of the panel; after the processing is completed, the linear actuator resets upwards, driving the pull plate upwards, the pull hook moves up under the drive of the pull rod, the positioning pin slides into the second strip-shaped hole, and the pull hook opens at this time , the workpiece can be taken out, which completes the clamping of the workpiece, prevents the workpiece from shifting, and ensures the normal processing of the workpiece; and because the workpiece does not shift, the processing time is reduced and the processing efficiency is improved.

In some of the embodiments, the support further includes a bottom plate and a connecting column connecting the bottom plate and the panel, and the pull plate is located between the bottom plate and the panel.

In some of the embodiments, the linear driver is an air cylinder, and the piston rod of the air cylinder is connected with the pull plate.

In some of the embodiments, the pull plate is cross-shaped, the linear driver is connected to the center of the pull plate, and the second end of the pull rod is pivotally connected to the end of the pull plate.

In some of the embodiments, a U-shaped groove is formed at the end of the pull plate, and the second end of the pull rod is located in the U-shaped groove and is pivotally connected to the pull plate through a connecting pin.

In some of the embodiments, the end of the pull plate and the second end of the pull rod are both arranged in an arc shape.

In some of the embodiments, a spacer is provided on the panel corresponding to the workpiece clamping position, and the spacer is fixedly connected with the panel. The setting of pads is convenient for workpiece positioning.

In some of the embodiments, a limit block is provided on the outer surface of the spacer, and the limit block is partly connected with the spacer and partly extends above the spacer. Stoppers allow for more accurate positioning of the workpiece on the chock.

In some of the embodiments, the panel is provided with several tie rod holes, and the tie rods pass through the panel through the tie rod holes.

In some of the embodiments, the pull hooks are arranged at 90 degrees.

Description of drawings

Fig. 1 is a schematic structural view of a drag hook clamping device according to a preferred embodiment of the present invention;

Fig. 2 is a structural schematic diagram of another viewing angle of the drag hook clamping device described in Fig. 1;

Fig. 3 is a top view of the drag hook clamping device described in Fig. 1;

Fig. 4 is the A-A direction sectional view of Fig. 3;

FIG. 5 is a structural schematic diagram of the hook mechanism of the hook clamping device shown in FIG. 1 .

Detailed ways

In order to facilitate the understanding of the utility model, the utility model will be described more fully below with reference to the relevant drawings. Preferred embodiments of the utility model are provided in the accompanying drawings. However, the invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present utility model more thorough and comprehensive.

It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of this invention. The terminology used in the description of the utility model herein is only for the purpose of describing specific embodiments, and is not intended to limit the utility model.

Example

The drag hook clamping device 100 described in the utility model is used for clamping the workpiece 101 so as to process the workpiece. The invention is particularly directed to workpieces 101 of the plate type.

Please refer to Fig. 1 to Fig. 5, above-mentioned drag hook clamping device 100, comprises bracket 10, linear drive 20 installed on bracket 10, pull plate 30 connected with linear drive 20, several pull hook mechanisms 40 connected with pull plate 30 and pull hook The positioning mechanism 50 and the linear driver 20 drive the draw plate 30 to descend or rise. The draw plate 30 drives the draw hook mechanism 40 to press the workpiece 101 when descending and release the workpiece 101 when ascending. The draw hook positioning mechanism 50 is used for positioning the draw hook mechanism 40 .

Please refer to FIG. 1 , FIG. 2 and FIG. 4 , specifically, the bracket 10 includes a panel 11 for placing workpieces, and the panel 11 is arranged in a planar shape. The linear driver 20 is arranged below the panel 11 and installed on the bottom of the panel 11 , and the driving part of the linear driver 20 moves down or up relative to the panel 11 . The top surface of the pull plate 30 is connected with the linear driver 20, so that the pull plate 30 is driven to move when the linear driver 20 moves. The pull hook mechanism 40 includes a pull rod 41 and a pull hook 42 disposed at a first end of the pull rod 41 . The second end of the pull rod 41 is pivotally connected to the pull plate 30, so that when the pull plate 30 moves, the pull rod 41 and the pull hook 42 are moved in a direction close to or away from the panel 11. When the pull plate 30 moves in a direction away from the panel 11, the pull hook 42 Press down, and its hook portion presses the workpiece 101. After the workpiece processing is completed, when the pull plate 30 rises, the drag hook 42 opens, and the workpiece 101 is released.

A plurality of drawbar holes 14 are provided on the panel 11, and the drawbar 41 passes through the panel 11 through the drawbar holes 14. The drawhook 42 is located above the panel 11, and the drawhooks 42 of several drawhook mechanisms 40 are all set towards the center of the panel 11, so that the drawhook 42 encloses the workpiece Clamping position, where the workpiece 101 is placed.

Please refer to FIG. 4 , in this embodiment, because the workpiece 101 is a flat workpiece, the side of the workpiece 101 is at 90 degrees, the drag hook 41 is at an angle a, and a is also set at 90 degrees. In other embodiments, the pull hook 41 can also be at other angles, and the angle is adapted to the side angle of the workpiece 101 .

Please refer to FIG. 4 and FIG. 5 , the drag hook positioning mechanism 50 includes a plurality of positioning blocks 51 and a plurality of displacement holes 43 .

The displacement holes 43 are defined on the pull rods 41 , and one pull rod 41 corresponds to one displacement hole 43 . The displacement hole 43 comprises a first strip-shaped hole 431, a second strip-shaped hole 432 and a communication hole 433 communicating with the first strip-shaped hole 431 and the second strip-shaped hole 432, the first strip-shaped hole 431, the second strip-shaped hole 432 are strip-shaped and arranged along the length direction of the pull rod 41. The first strip-shaped hole 431 and the second strip-shaped hole 432 are mutually staggered along the width direction of the pull rod 41. The first strip-shaped hole 431 is relatively smaller than the second strip-shaped hole 432. away from the center of the panel 11. The displacing hole 43 is provided for positioning and opening the draw hook 42 .

The positioning block 51 is disposed on the panel 11 , and a U-shaped groove 52 is formed on a side of the positioning block 51 facing the center of the panel 11 , and a part of the pull rod 41 is limited in the U-shaped groove 52 . The positioning block 51 is provided with a limiting hole connected to the U-shaped groove 52 , and a positioning pin 53 penetrates the limiting hole and the displacement hole to flexibly connect the positioning block 51 and the pull rod 41 . When the draw hook 42 presses the workpiece 101, the positioning pin 53 penetrates the first strip hole 431 and abuts against the upper end of the first strip hole 431; when the draw hook 42 releases the workpiece 101, the positioning pin 53 slides into the second strip hole 431. The strip-shaped hole 432 is set because the second strip-shaped hole 432 and the first strip-shaped hole 431 are misplaced, so that when the positioning pin 53 slides into the second strip-shaped hole 432, the draw hook 42 opens, and the workpiece can be taken out at this moment.

In the hook clamping device 100 described above, the workpiece is placed on the panel 11. When the linear actuator 20 is turned on, the pull plate 30 is pushed downward, and the pull hooks 42 move down under the drive of the pull rod 41, so that several pull hooks 42 tightly press the workpiece 101. At this time, the positioning pin 53 is located in the first strip hole 431 far from the center of the panel; after the processing is completed, the linear actuator 20 resets upward, driving the pull plate 30 upward, and the pull hook 42 moves upward driven by the pull rod 41, and the positioning pin 53 slides in the second strip hole 432, and now draw hook 42 is opened, and workpiece 101 can be taken out, finishes clamping workpiece like this, prevents workpiece from shifting, guarantees that workpiece is processed normally; And because workpiece 101 can not shift, reduces The processing time is reduced and the processing efficiency is improved.

Please refer to FIG. 1 and FIG. 2 , further, the bracket 10 further includes a base plate 12 and a connecting column 13 connecting the base plate 12 and the panel 11 , forming an accommodating space between the base plate 12 and the panel 11 . The bottom plate 12 and the connecting columns 13 are used to support the panel 11 .

In one embodiment, the linear driver 20 is an air cylinder, the body 21 of the air cylinder is connected to the bottom of the panel 11 , and the piston rod 22 of the air cylinder is connected to the pull plate 30 . When the cylinder is opened, the piston rod 22 pushes the pull plate 30 to move. In other embodiments, the linear driver 20 may also be a linear actuator, a hydraulic cylinder and other moving parts. In such devices, air cylinders are usually used, which are light and easy to install.

The pull plate 30 is cross-shaped, forming a cross-shaped pull plate. The linear driver 20 is connected to the center of the cross-shaped pull plate 30 , and the second end of the pull rod 41 is pivotally connected to the end of the cross-shaped pull plate 30 . In this way, when the cross-shaped pull plate 30 descends, there is a buffer between the pull rod 41 and the cross-shaped pull plate 30 .

Please refer to Fig. 1 and Fig. 4, in the present embodiment, the end of the cross-shaped pull plate 30 pull plate is provided with a U-shaped groove 31, and the second end of the pull rod 41 is located in the U-shaped groove 31, and is connected with a connecting pin 32. The cross-shaped pull plate 30 is pivotally connected. The end of the cross-shaped pull plate 30 and the second end of the pull rod 41 are both arranged in an arc shape, which can better ensure the stability of the pivotal structure.

Please refer to FIG. 1 to FIG. 4 , further, a spacer 60 is provided on the panel 11 corresponding to the workpiece clamping position, and the spacer 60 is fixedly connected with the panel 11 . The setting of the spacer 60 facilitates the positioning of the workpiece.

Furthermore, a limiting block 61 is provided on the outer surface of the pad 60 , part of the limiting block 61 is connected with the pad 60 , and part of it extends above the pad 60 . The limit block 61 can position the workpiece on the pad 60 more accurately. A positioning hole is provided in the center of the spacer 60 to facilitate the positioning of the spacer 60 . In this embodiment, there are two limiting blocks 61 , which are arranged on two adjacent side walls of the cushion block 60 .

The above-mentioned embodiments only express several implementations of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (10)

1. A kind of 1. drag hook clamping device, for clamping workpiece, it is characterised in that including：

   Stent, the stent include being used for the panel for placing workpiece；

   Linear actuator, the linear actuator are installed on the bottom of the panel；

   Pulling plate, the one side of the pulling plate are connected with the linear actuator；

   Some hook mechanisms, the hook mechanism include pull rod and the drag hook arranged on the pull rod first end, the pull rod Second end is pivotally connected with the pulling plate, to be moved by direction of the linear actuator drives edge closer or far from the panel；Institute State pull rod and wear the panel, the drag hook is located at the top of the panel, and the drag hook of some hook mechanisms is towards institute The centrally disposed of panel is stated, to surround Workpiece clamping position；

   Some drag hook detent mechanisms, the drag hook detent mechanism include some locating pieces and some shift holes；The shift holes Be opened on the pull rod, the shift holes include the first bar hole, the second bar hole and connection first bar hole with The intercommunicating pore of second bar hole, first bar hole, the second bar hole are set along the length direction of the pull rod, and along institute The width for stating pull rod mutually staggers, and relatively described second bar hole of first bar hole is further away from the panel The heart；The locating piece is arranged on the panel, and the one side of the locating piece towards the face plate center offers a U-type groove, institute State a pull rod part to be contained in the U-type groove, the limit hole for connecting the U-type groove, a positioning are offered on the locating piece Pin wears the limit hole and shift holes, to be flexibly connected the locating piece and the pull rod.
2. 2. drag hook clamping device according to claim 1, it is characterised in that：The stent further includes bottom plate and connection institute The connecting pole of bottom plate and panel is stated, the pulling plate is between the bottom plate and the panel.
3. 3. drag hook clamping device according to claim 1, it is characterised in that：The linear actuator is cylinder, the gas The piston rod of cylinder is connected with the pulling plate.
4. 4. the drag hook clamping device according to claim 1 or 3, it is characterised in that：The pulling plate is in cross, the straight line Driver is connected with the center of the pulling plate, and the second end of the pull rod and the end of the pulling plate are pivotally connected.
5. 5. drag hook clamping device according to claim 4, it is characterised in that：The end of the pulling plate offers U-type groove, institute The second end for stating pull rod is located in the U-type groove, and is pivotally connected by a connecting pin and the pulling plate.
6. 6. drag hook clamping device according to claim 5, it is characterised in that：The of the end of the pulling plate and the pull rod Two ends are set in arc-shaped.
7. 7. drag hook clamping device according to claim 1, it is characterised in that：Correspond to the Workpiece clamping on the panel Position is equipped with a cushion block, and the cushion block is fixedly connected with the panel.
8. 8. drag hook clamping device according to claim 7, it is characterised in that：The lateral surface of the cushion block is equipped with limited block, The limited block part is connected with the cushion block, extends partially into the top of the cushion block.
9. 9. drag hook clamping device according to claim 1, it is characterised in that：The panel offers some tie rod holes, institute State pull rod and the panel is worn by the tie rod hole.
10. 10. drag hook clamping device according to claim 1, it is characterised in that：The drag hook is in 90 degree of settings.