CN202114499U - Linear cutting clamp - Google Patents

Abstract

The utility model relates to the technical field of linear cutting, in particular to a linear cutting clamp, which comprises a pressure plate, a guide rod, a top plate, a lower base, an elastic bottom plate, a supporting rod and an eccentric wheel. The lower end of the supporting rod is fixed to the upper surface of the lower base, the top plate and the supporting rod are in slidable connection along the extending direction of the supporting rod, and the lower surface of the top plate is connected with the upper end of the guide rod. The lower end of the guide rod is hinged with the pressure plate, the elastic bottom plate is positioned on the upper surface of the lower base and opposite to the pressure plate, and the eccentric wheel is hinged with the top plate and contacted with the lower base. Repeated clamping of workpieces can be completed only by turning the eccentric wheel of the linear cutting clamp, and thereby clamping time is shortened in batch production, clamping efficiency is improved, standby time of machines is shortened, and machining cost is reduced.

Description

A wire cutting fixture

technical field

The utility model relates to the technical field of wire cutting, in particular to a wire cutting fixture.

Background technique

At present, in the field of online cutting technology, most of the fixtures used on machine tools are pressure plates and screws. This traditional fixture is generally poor in adaptability to workpieces, especially for some irregular parts or small parts. Clamping; when using the above-mentioned traditional fixtures, the workers use pressure plates and screws to press the workpiece to be processed on the machine tool, and then use a micrometer to correct the straightness and levelness. A lot of time will be spent on this process. This leads to long workpiece correction time, long mechanical standby time, and low work efficiency. Especially for mass production, each workpiece needs to be corrected, and the shortcomings of low work efficiency are particularly prominent.

The publication number is CN201143628Y, and the Chinese patent titled a wire-cutting adjustable clamp discloses a wire-cutting adjustable clamp. As shown in Figure 1, the wire-cutting adjustable clamp includes an elastic clamp body 03, which is set The working clamping groove 031 on the body 03, the threaded through hole 034 on the upper wall of the working clamping groove 031, and the compression screw used to fix the workpiece in the workpiece clamping groove 031 in cooperation with the threaded through hole 034 04, the fine-tuning seam 032 opened along the height direction of the fixture body 03 and with adjustable opening size, the fine-tuning seam placement slot 033 opened on the fine-tuning seam 032, cooperates with the fine-tuning seam placement groove 033, and is used to adjust the fine-tuning seam 032 size fine-tuning block 01, the fine-tuning block threaded through hole 011 arranged on the fine-tuning block 01, cooperates with the fine-tuning block threaded through-hole 011, and is used to press the fine-tuning block 01 on the fine-tuning block placement groove 033 for fine-tuning screw 02.

When using the wire cutting adjustable fixture, place the workpiece to be processed in the workpiece clamping groove 031, tighten the compression screw 04, put the fine-tuning block 01 into the fine-tuning seam placement groove 033 on the elastic clamp body 03, and use the fine-tuning The screw 02 presses the fine-tuning block 01 in the fine-tuning seam placement groove 033 through the threaded through hole 011 of the fine-tuning block, and adjusts the fine-tuning screw 02 to adjust the opening size of the fine-tuning seam 032 to adjust the levelness of the workpiece in the workpiece clamping groove 031 , because the clamping and dismounting of workpieces using this wire cutting adjustable fixture requires screwing the clamping screw 04, which leads to low clamping efficiency, especially for mass production, clamping each workpiece requires screwing the clamping screw 04 , the disadvantage of low clamping efficiency is even more prominent.

Therefore, how to improve the clamping efficiency of the wire cutting jig is a technical problem currently to be solved by those skilled in the art.

Utility model content

The purpose of the utility model is to provide a wire cutting fixture to improve the clamping efficiency of the wire cutting fixture.

In order to solve the above technical problems, the utility model provides the following technical solutions:

A wire cutting fixture, comprising a pressure plate, a guide rod, a top plate, a lower base, an elastic bottom plate, a support rod and an eccentric wheel; the lower end of the support rod is fixed to the upper surface of the lower base; the top plate is connected to the support The rod is slidably connected along the extension direction of the support rod, and the lower surface of the top plate is connected to the upper end of the guide rod; the lower end of the guide rod is hinged to the pressure plate; the elastic bottom plate is placed on the lower base and corresponding to the pressure plate; the eccentric wheel is hinged to the top plate and is in contact with the lower base.

Preferably, the upper end of the support rod has a baffle, and a spring is provided between the baffle and the top plate.

Preferably, the upper end of the support rod cooperates with an adjustment nut, and the adjustment nut is in contact with the upper surface of the baffle.

Preferably, the pressure plate is hinged to the lower end of the guide rod through a double-ended stud, and both ends of the double-ended stud are provided with locking nuts.

Preferably, the top board has a fine-tuning through hole, the guide rod passes through the fine-tuning through hole, and the upper end of the guide rod cooperates with the fine-tuning nut, and the lower end surface of the fine-tuning nut contacts the upper surface of the top board, so The upper end surface of the fine-tuning nut is in contact with the upper limit block fixed on the top plate.

Preferably, the guide rod has a key groove extending in the same direction as the guide rod, the inner surface of the fine-tuning through hole has a corresponding matching key groove, and anti-slip keys are arranged in the key groove and the matching key groove.

Preferably, the top plate has a position adjustment through hole, and the support rod passes through the position adjustment through hole.

Preferably, the support rod has a key groove extending in the same direction as the support rod, the inner surface of the position adjustment through hole has a corresponding matching key groove, and keys are arranged in the key groove and the matching key groove.

Preferably, the eccentric wheel is fixed with a handle.

Preferably, the portion of the lower base corresponding to the eccentric wheel protrudes upwards.

With respect to the above-mentioned background technology, the wire cutting fixture provided by the utility model includes a pressure plate, a guide rod, a top plate, a lower base, an elastic bottom plate, a support rod and an eccentric wheel; the lower end of the support rod is fixed to the upper surface of the lower base The top plate is slidably connected to the support rod along the extension direction of the support rod, and the lower surface of the top plate is connected to the upper end of the guide rod; the lower end of the guide rod is hinged to the pressure plate; the The elastic bottom plate is placed on the upper surface of the lower base and corresponds to the pressure plate; the eccentric wheel is hinged to the top plate and is in contact with the lower base.

When the wire cutting fixture provided by the utility model clamps the workpiece, the workpiece is placed on the elastic bottom plate, and then the pressure plate is rotated so that the workpiece maintains the required angle, and then the workpiece is processed. After the workpiece is processed, the rotation is eccentric At this time, the top plate hinged with the eccentric wheel will slide upward along the support rod, that is, the guide rod connected to the lower surface of the top plate will also move upward, and the wire cutting fixture will loosen the workpiece and complete the clamping of a workpiece; then, Place another workpiece to be processed on the elastic bottom plate, turn the eccentric wheel in the opposite direction, and the wire cutting fixture clamps the workpiece.

It can be seen from this that, during mass production, the above-mentioned wire-cutting fixture only needs to rotate the eccentric wheel to repeatedly clamp the workpiece. Therefore, the wire-cutting fixture provided by the utility model shortens the clamping time, thereby improving the clamping efficiency , thereby shortening the mechanical standby time and reducing the processing cost.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the structural representation of a kind of wire cutting adjustable fixture provided by prior art;

Fig. 2 is a schematic structural view of the wire cutting jig provided by the embodiment of the present invention.

Detailed ways

The purpose of the utility model is to provide a wire cutting fixture to improve the clamping efficiency of the wire cutting fixture.

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

As shown in Figure 2, the wire cutting fixture provided by the utility model includes a pressure plate 17, a guide rod 14, a top plate 13, a lower base 19, an elastic bottom plate 18, a support rod 1 and an eccentric wheel 3; The upper surface of the base 19 is fixed; the top plate 13 is slidably connected with the support rod 1 along the extension direction of the support rod 1, and the lower surface of the top plate 13 is connected with the upper end of the guide rod 14; the lower end of the guide rod 14 is hinged with the pressure plate 17; The bottom plate 18 is placed on the upper surface of the lower base 19 and corresponds to the pressure plate 17 ; the eccentric wheel 3 is hinged to the top plate 13 and is in contact with the lower base 1 . Usually, the pressure plate 17 of different shapes can be set according to the different parameters such as the shape and size of the workpiece to be processed, as long as the same technical effect can be satisfied.

When the wire cutting fixture provided by the utility model clamps the workpiece, the workpiece is placed on the elastic base plate 18, and then the pressure plate 17 is rotated so that the workpiece maintains the required angle, and then the workpiece is processed. After the workpiece is processed, Turn the eccentric wheel 3, the top plate 13 hinged with the eccentric wheel 3 will slide upwards along the support rod 1, that is, the guide rod 14 connected to the lower surface of the top plate 13 also moves upwards, and the wire cutting clamp releases the workpiece, and the alignment is completed. Clamping of a workpiece; then, another workpiece to be processed is placed on the elastic base plate 18, and the eccentric wheel 3 is rotated in the opposite direction, and the wire cutting fixture clamps the workpiece.

It can be seen from this that, during mass production, the above-mentioned wire cutting fixture only needs to rotate the eccentric wheel 3 to repeatedly clamp the workpiece. Therefore, the wire cutting fixture provided by the utility model shortens the clamping time, thereby improving the clamping time. Efficiency, thereby shortening the mechanical standby time and reducing the processing cost.

In addition, in order to ensure that the workpiece can be clamped relatively stably between the elastic bottom plate 18 and the pressure plate 17, generally those skilled in the art can install a baffle plate 6 on the upper end of the support rod 1, and a spring 5. When the top plate 13 slides upwards, the spring 5 is compressed, and when the top plate 13 slides downwards, the spring 5 exerts a downward pressure on the top plate 13, so that the pressure plate 17 applies a downward pressure to the workpiece, thereby ensuring that the The workpiece is stably clamped between the pressure plate 17 and the elastic bottom plate 18 .

In addition, the shape and size of different batches of workpieces will have certain differences, so the required pressure is also different. For this reason, an adjusting nut 7 can be arranged on the upper end of the support rod 1, and the adjustment nut 7 and the baffle plate 6 The upper surface is in contact, and the compression state of the spring 5 can be adjusted by turning the adjusting nut 7 according to different requirements, that is, the pressure can be adjusted.

Usually, those skilled in the art can also hinge the lower end of the pressure plate 17 and the guide rod 14 through the stud 15, so that after the adjustment of the pressure plate 17 is completed, lock nuts can be screwed at both ends of the stud 15 16, so as to ensure that the pressure plate 17 is fixedly connected with the guide rod 14, so that the rotation of the pressure plate 17 relative to the guide rod 14 during processing can be avoided, thereby ensuring the accuracy of processing.

In order to further ensure the accuracy of processing, the position of the guide rod 14 can also be fine-tuned, and a fine-tuning through hole can be set on the top plate 13, the guide rod 14 passes through the fine-tuning through hole, and the upper end of the guide rod 14 cooperates with the fine-tuning nut 10 , the lower end surface of the fine-tuning nut 10 is in contact with the upper surface of the top plate 13, and the upper end surface of the fine-tuning nut 10 is in contact with the upper limit block 9 fixed on the upper surface of the top plate 13. When the position of the guide rod 14 needs to be fine-tuned, screw The adjustment of the length of the guide rod 14 positioned below the fine-tuning nut can be realized by moving the fine-tuning nut 10. The upper limit block 9 can be processed into an integral structure with the top plate 13, or can be processed into a split structure, and then fixed. In the embodiment of the utility model, the upper limit block 9 and the top plate 13 are preferably set as a split structure, and then passed The screws are fixed, and of course the lower limit block 11 can also be set between the lower end surface of the fine-tuning nut 10 and the upper surface of the top plate 13 .

Those skilled in the art can also set on the guide rod 14 the same keyway with the extension direction of the guide rod 14, the inner surface of the fine-tuning through hole has a corresponding matching keyway, and an anti-skid key 12 is arranged in the keyway and the matching keyway, so that when working During the process, the guide rod 14 will not rotate, thereby improving the processing accuracy.

In addition, a position adjustment through hole can also be set on the top plate 13, and the support rod 1 passes through the position adjustment through hole. At this time, the support rod 1 can be provided with a keyway whose extension direction is the same as that of the support rod 1, and the inner surface of the position adjustment through hole There is a corresponding matching keyway, and the keyway and the matching keyway are provided with a key 8, which limits the rotation of the top plate 13 relative to the support rod 1, and further ensures the accuracy of processing.

In order to rotate the eccentric wheel 3 conveniently, a handle 4 can also be fixed on the eccentric wheel 3, a threaded hole can be set on the eccentric wheel 3, and one end of the handle 4 is provided with a thread, and the connection between the handle 4 and the eccentric wheel 3 can be realized by threaded connection. Fixing, of course, can also be other fixing forms, as long as the same technical effect can be achieved.

In order to ensure that the lower base 19 is in contact with the eccentric wheel 3, and to ensure that the eccentric wheel 3 is relatively small, it is usually possible to protrude 2 upward at the position corresponding to the lower base 19 and the eccentric wheel 3, and the protrusion 2 can be integrated with the lower base 19 Structure, for the convenience of processing, the protrusion 2 and the lower base 19 can also be set as a split structure, and then the protrusion 2 and the lower base 19 can be fixed together. Generally, the protrusion 2 and the lower base 19 can be fixed by screws. Of course Other fixing methods are also possible, as long as the same technical effect can be achieved.

The working ladder provided by the utility model has been introduced in detail above. In this paper, specific examples are used to illustrate the principle and implementation of the present utility model, and the descriptions of the above embodiments are only used to help understand the method and core idea of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made to the utility model, and these improvements and modifications also fall into the protection of the claims of the utility model. within range.

Claims (10)

1. a linear cutting clamp is characterized in that, comprises platen (17), guide post (14), top board (13), lower bottom base (19), elastic bottom plate (18), support bar (1) and eccentric wheel (3); The upper surface of the lower end of said support bar (1) and said lower bottom base (19) is fixed; Said top board (13) is slidingly connected with the bearing of trend of said support bar (1) along support bar (1), and the lower surface of said top board (13) is connected with the upper end of said guide post (14); The lower end of said guide post (14) and said platen (17) are hinged; Said elastic bottom plate (18) places on the upper surface of said lower bottom base (19), and corresponding with said platen (17); Said eccentric wheel (3) is hinged with said top board (13), and contacts with said lower bottom base (19).

2. linear cutting clamp according to claim 1 is characterized in that, the upper end of said support bar (1) has baffle plate (6), has spring (5) between said baffle plate (6) and the said top board (13).

3. linear cutting clamp according to claim 2 is characterized in that, the upper end of said support bar (1) cooperates with adjusting nut (7), and said adjusting nut (7) contacts with the upper surface of said baffle plate (6).

4. according to each described linear cutting clamp of claim 1 to 3, it is characterized in that said platen (17) is hinged through studs (15) with the lower end of said guide post (14), the two ends of said studs (15) all have locking nut (16).

5. according to each described linear cutting clamp of claim 1 to 3; It is characterized in that; Said top board (13) has the fine setting through hole, and said guide post (14) passes said fine setting through hole, and the upper end of said guide post (14) cooperates with fine-tuning nut (10); The lower surface of said fine-tuning nut (10) contacts with the upper surface of top board (13), and the upper surface of said fine-tuning nut (10) contacts with upper limit position block (9) on being fixed in said top board (13).

6. linear cutting clamp according to claim 5; It is characterized in that; Said guide post (14) has the identical keyway of bearing of trend of bearing of trend and said guide post (14); Said fine setting through-hole inner surface has corresponding fit keyway, is provided with anti-feather key (12) in said keyway and the fit keyway.

7. according to each described linear cutting clamp of claim 1 to 3, it is characterized in that said top board (13) has the position adjustments through hole, said support bar (1) passes said position adjustments through hole.

8. linear cutting clamp according to claim 7; It is characterized in that; Said support bar (1) has the identical keyway of bearing of trend of bearing of trend and said support bar (1), and said position adjustments through-hole inner surface has corresponding fit keyway, is provided with key (8) in said keyway and the fit keyway.

9. according to each described linear cutting clamp of claim 1 to 3, it is characterized in that said eccentric wheel (3) is fixed with handle (4).

10. according to each described linear cutting clamp of claim 1 to 3, it is characterized in that said lower bottom base (19) and the corresponding position of said eccentric wheel (3) raise up (2).

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