CN209206748U - A kind of overturning clamp for machining - Google Patents

Abstract

The embodiment of the utility model belongs to the field of fixtures, and discloses a flipping processing fixture. The solution provided by the utility model includes a mounting seat, a rotating mechanism and a positioning mechanism; the rotating mechanism is installed on the mounting seat, and the positioning mechanism is fixed on the On the rotating mechanism, the positioning mechanism is used to load and position the workpiece, and the rotating mechanism is used to rotate the positioning mechanism so as to process different surfaces of the workpiece. The positioning mechanism provided by the turning fixture in the embodiment of the present invention can be used to clamp workpieces of various types and sizes, and has strong practicability and high compatibility. In addition, the rotating mechanism can be used to turn over the workpiece to align different surfaces for processing, improve production efficiency, and reduce manual operations, thereby reducing errors.

Description

A turning fixture

technical field

The embodiment of the utility model relates to the technical field of product processing equipment, in particular to the field of clamps, especially a flip processing clamp.

Background technique

Some products need to be processed on multiple surfaces, but the clamps of the prior art generally can only process the front side (the side facing the processing equipment) of the workpiece held by the fixture. For other sides, it needs to be reloaded so that it faces the processing equipment. The fixture of the prior art needs to reload the workpiece every time a surface of the workpiece is processed. Moreover, the clamps in the prior art have low compatibility, and can only clamp one type of workpiece, and cannot even clamp the same type of workpiece with different specifications. In addition, the flipping mechanism in the prior art does not accurately position the jig after flipping, and it is easy to flip over or not in place, which affects the processing effect.

For example, there are many types of blanking processing equipment, and the positioning device of the blanking on the laser marking equipment often uses profiling jigs; due to the complex shape of the blanking, the profiling jig is difficult to process and the cost is high; and there are many types of blanking, The profiling fixture has poor adaptability and weak compatibility. In addition, the spacer clamped by the fixture in the prior art needs to be reloaded and replaced once during the marking process to mark a surface of the spacer, and the conversion efficiency of the marking surface is low, resulting in low marking efficiency.

Utility model content

The technical problems to be solved by the embodiments of the utility model are: the existing fixtures have poor compatibility, low positioning accuracy and low processing efficiency.

In order to solve the above-mentioned technical problems, a flipping processing jig described in the embodiment of the utility model adopts the following technical solutions:

A turning fixture,

Including: mounting base, rotating mechanism and positioning mechanism;

The rotating mechanism includes a rotating plate and a driving mechanism, the rotating plate is suspended on the mounting seat, the output end of the driving mechanism passes through the side of the mounting seat and the end of the rotating plate close to the driving mechanism fixedly connected; the end of the rotating plate away from the driving mechanism is provided with a connecting shaft, and the connecting shaft is rotationally connected to the side of the mounting seat away from the driving mechanism;

The positioning mechanism is fixed on the rotating plate, and the positioning mechanism is used for loading and positioning workpieces;

The driving mechanism is used to drive the rotary plate to rotate so as to process different surfaces of the workpiece.

The positioning mechanism provided by the turning fixture in the embodiment of the present invention can be used to clamp workpieces of various types and sizes, and has strong practicability and high compatibility. In addition, the rotating mechanism can be used to turn over the workpiece to align different surfaces for processing, improve production efficiency, and reduce manual operations, thereby reducing errors. Moreover, the rotation mechanism controls the turning accuracy of the positioning mechanism by controlling the rotation angle, so that the positioning is accurate.

Further, the rotating plate is hollow, and a transmission hole is provided corresponding to the workpiece, so that the driving mechanism drives the rotating plate to turn over to process the back of the workpiece.

further,

The positioning mechanism includes a driving cylinder, a positioning plate, a connecting plate, a baffle plate and a pressing mechanism,

The driving cylinder, the positioning plate and the pressing mechanism are fixed on the rotating plate, and the pressing mechanism is arranged on the end of the rotating plate away from the driving cylinder, and the positioning plate corresponds to the transmission hole;

One end of the connecting plate is fixedly connected to the output shaft of the driving cylinder, and the other end is connected to the baffle, the baffle is close to the positioning plate, and the positioning plate is used to load the workpiece;

The driving cylinder is used to drive the baffle to clamp or loosen the workpiece for loading and unloading;

The pressing mechanism is used to act on the workpiece from a direction parallel to the baffle, and the pressing mechanism cooperates with the baffle to fix the workpiece.

further,

The pressing mechanism includes a pressing shaft and a rotating cylinder;

The rotary cylinder is fixed at the bottom of the positioning plate, and its output end is fixed with the pressing shaft;

The rotary cylinder is used to drive the pressing shaft to rotate, so that the pressing shaft touches the workpiece to fix the workpiece.

Further, the positioning plate is provided with processing holes, the processing holes correspond to the transmission holes, and the specifications of the processing holes are not larger than the transmission holes.

The transmission hole and the processing hole are used to expose the back of the workpiece, so that the rotating mechanism rotates the workpiece and turns the back of the workpiece to face the processing equipment, so that the laser beam can be transmitted to the back of the workpiece for processing. Moreover, the processing hole is also used to limit the processing range of the workpiece and improve the compliance rate of the workpiece processing.

Further, the turning fixture also includes a reset detection mechanism, the reset detection mechanism is fixed on the side of the mounting seat away from the rotation mechanism, and the reset detection mechanism includes a pointer and a photoelectric switch;

The pointer is fixedly connected with the rotating mechanism and rotates with the rotating mechanism;

The photoelectric switch is fixed on the side of the mounting seat away from the rotating mechanism, and is used for sensing the pointer.

Compared with the prior art, the utility model embodiment mainly has the following beneficial effects:

The embodiment of the utility model discloses a turning fixture, comprising: a mounting base, a rotating mechanism and a positioning mechanism; the rotating mechanism is installed on the mounting base, and the positioning mechanism is fixed on the rotating mechanism, which can be used for Clamping workpieces of various types and sizes, it has strong practicability and high compatibility. The rotating mechanism is used to rotate the positioning mechanism so as to process different surfaces of the workpiece, thereby improving production efficiency, and reducing manual operations, thereby reducing errors.

Description of drawings

Fig. 1 is the structural schematic diagram of the flip processing jig described in the embodiment of the present invention;

Fig. 2 is a partial structural schematic diagram of the turning fixture described in the embodiment of the present invention;

Fig. 3 is another schematic diagram of the structure of the turning fixture described in the embodiment of the present invention;

Fig. 4 is a partial structural schematic diagram of the flipping processing jig according to the embodiment of the present invention.

Explanation of reference signs:

1-mounting seat, 2-rotation mechanism, 3-positioning mechanism, 4-reset detection mechanism, 21-driving motor, 22-rotating plate, 31-driving cylinder, 32-positioning plate, 33-connecting plate, 34-baffle plate , 35-compression mechanism, 41-pointer, 42-photoelectric switch, 101-through hole, 201-connection block, 202-connection shaft, 203-bearing, 204-support block, 205-plane block, 220-transmission hole, 320-machining hole, 351-pressing shaft, 352-rotary cylinder.

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 may 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.

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.

It should be noted that the words "upper", "lower", "upper end", "lower end", "bottom" and "top" used in the following description only indicate the relative positional relationship between the various components. When rotated or rotated, this relative positional relationship may be reversed or changed.

The terms "first", "second" and the like in the claims of the present utility model, the description and the drawings of the description are used to distinguish different objects, rather than to describe a specific order.

The embodiment of the utility model provides a turning fixture, as shown in Figure 1, it includes a mounting base 1, a rotating mechanism 2 and a positioning mechanism 3, wherein the rotating mechanism 2 is installed on the mounting base 1, the The positioning mechanism 3 is installed on the rotating mechanism 2 . The positioning mechanism 3 is used for clamping and positioning workpieces 11 of different specifications and shapes, and has strong compatibility. The rotating mechanism 2 is used to rotate the positioning mechanism 3 to make the workpiece 11 rotate accordingly, so as to switch different surfaces of the workpiece 11 toward the processing equipment, so as to process different surfaces of the workpiece 11 . It improves the machining efficiency of the workpiece 11 by reducing the number of times the workpiece 11 is loaded. Moreover, the rotation mechanism 2 accurately controls the rotation angle to precisely control the flipping accuracy of the positioning mechanism.

Further, as shown in FIGS. 1-3 , the rotating mechanism 2 includes a driving motor 21 and a rotating plate 22 . The drive shaft of the drive motor 21 passes through the side of the mounting base 1, and the end of the drive shaft close to the rotating plate 22 is provided with a connecting block 201, and the connecting block 201 is provided with an arc on the side facing the rotating plate 22. Shaped slot, used for accommodating one end of the drive motor 21 close to the rotating plate 22, and fixed with screws. The other end of the rotating plate 22 is rotatably connected with the mounting base 1 , so that the rotating plate 22 is suspended above the mounting base 1 . The positioning mechanism 3 is fixed on the rotating plate 22, and the driving motor 21 drives the rotating plate 22 to rotate, so that the positioning mechanism 3 rotates accordingly, so that the workpiece 11 on the positioning mechanism 3 is converted its processed surface. Specifically, the flipping processing jig can perform conversion processing on three surfaces of the workpiece 11 in one clamping: the front, back/back and one exposed side of the positioning mechanism workpiece.

Specifically, as shown in FIG. 1 , the mounting base 1 is a U-shaped structure, and the U-shaped space formed by it is sufficient to provide a space for the rotating plate 22 and the positioning mechanism 3 to drive the workpiece 11 to rotate. More specifically, its two parallel vertical ends are fixed above its horizontal bottom end, and its two vertical ends are provided with through holes 101, and the heights are corresponding, and the two vertical ends are used to support the positioning mechanism 3 and The workpiece 11, and make the positioning mechanism 3 and the workpiece 11 in a horizontal state.

As shown in FIGS. 1 , 2 and 4 , the output end of the driving motor 21 is fixed to the rotating plate 22 through the through hole 101 at the vertical end it is close to. The rotating plate 22 is a Z-shaped structure, including a connecting shaft 202, a supporting block 204 and a plane block 205, wherein the connecting shaft 202 and the supporting block 204 are far away from the driving mechanism 2, and the connecting shaft 202 and the supporting block 204 can be integrally formed It can also be fixed by welding. Specifically, the connecting shaft 202 passes through the through hole 101 at the end of the mounting base 1 away from the driving mechanism 2, so that the rotating plate 22 and the mounting base 1 are rotationally connected, so that the rotating plate 22 can follow the The output end of the driving motor 21 rotates. Moreover, the supporting block 204 and the connecting block 201 are of the same height, so that the plane block 205 is placed horizontally. When the driving motor 21 works, the rotating plate 22 rotates as a whole. The support block 204 is used to prop up the planar block 205 so that the space formed by the planar block 205 and the mounting seat is sufficient for the rotating plate 22 to rotate.

Further, the connecting shaft 202 is provided with a bearing 203 for reducing the coefficient of friction between the rotating plate 22 and the mounting base 1 to make the rotating plate 22 rotate more stably.

And, as shown in FIG. 4 , the rotating plate 22 is hollow, and it is provided with a transmission hole 220 corresponding to the workpiece, so that when the driving mechanism 2 drives the rotating plate 22 to turn over, the back surface of the workpiece for processing.

Specifically, when the rotary plate 22 is not rotated, the front side of the workpiece faces the processing equipment to process the front side thereof. When the rotating plate 22 is driven by the driving motor 21 to rotate 90 or 270 degrees, the workpiece rotates accordingly, and its exposed side corresponds to the processing equipment for processing it. When the rotating plate 22 is rotated by the driving motor 21 for 180 degrees, the reverse side/rear side of the workpiece faces the processing equipment, and the reverse side/back side can be processed.

Further, referring to FIGS. 1-2 again, the positioning mechanism 3 includes a driving cylinder 31 , a positioning plate 32 , two connecting plates 33 , two baffle plates 34 and a pressing mechanism 35 . Wherein, the driving cylinder 31, the positioning plate 32 and the pressing mechanism 35 are all fixed on the rotating plate 22, and the pressing mechanism 35 is arranged on the rotating plate 22 away from the driving cylinder 31. One end of the positioning plate 32 is correspondingly disposed above the transmission hole 220 and is used for loading and placing the workpiece 11 . One end of the connecting plate 33 is fixedly connected to the output shaft of the driving cylinder 31 , and the other end is connected to the baffle 34 , and the baffle 34 is close to the positioning plate 32 . And the driving cylinder 31 is arranged laterally, so that the two baffles 34 are respectively located on two sides of the workpiece. The driving cylinder 31 simultaneously drives the two baffles 34 to move toward each other, so that they can clamp the workpieces 11 of different specifications, or release them for loading and unloading workpieces. The pressing mechanism 35 is used to cooperate with the baffle plate 34 to jointly fix the workpiece 11 to prevent the workpiece 11 from falling when rotating.

Further, the pressing mechanism 35 is arranged at the end of the rotating plate 22 away from the driving motor 21 , and includes a pressing shaft 351 and a rotating cylinder 352 . Wherein, the rotating cylinder 352 is provided with one end of the rotating plate 22 facing away from the positioning plate 32, and its output end passes through the rotating plate 22 and is fixedly connected with the pressing shaft 351, or the pressing shaft 351 passes through The rotary plate 22 is connected to the output end of the rotary cylinder 352, and the rotary cylinder 352 is used to drive the pressing shaft 351 to rotate. Specifically, when the workpiece 11 is placed on the positioning plate 32, the rotary cylinder 352 drives the pressing shaft 351 to rotate and act on the side of the workpiece 11, and the pressing shaft 351 cooperates with the baffle plate 34 clamps and fixes the workpiece 11 from multiple orientations to prevent it from falling while rotating. After the processing is completed, the pressing shaft 351 is driven to loosen the workpiece 11 .

Specifically, the pressing shaft 351 is an L-shaped structure, one end of which is fixedly connected to the output end of the rotating cylinder 352 , and the other end is parallel to the rotating plate 22 . Generally, the rotation angle of the pressing shaft 351 is 90 degrees.

In this embodiment, the driving cylinder 31 is a double-acting cylinder, and the two baffles 34 are movable. Specifically, the two connecting plates 33 are respectively connected to the output shafts at both ends of the driving cylinder 31 , and the baffle plate 34 is fixed to the connecting plates 33 . The driving cylinder 31 drives the two baffles 34 to move toward each other, to move closer to each other to clamp the workpiece 11 , or to move away from each other to loosen the workpiece 11 . In this way, the positioning mechanism 3 can clamp workpieces 11 of various specifications and shapes, further improving the compatibility of the turning fixture.

At this time, the pressing cylinder is arranged on any side of the two baffles 34 , and the pressing shaft 351 can contact the workpiece 11 and cooperate with the baffle 34 to fix the workpiece 11 .

In another embodiment, the driving cylinder 31 is a one-way acting cylinder, and the baffle plate 34 on the side close to the driving motor 21 is a fixed plate, which is fixed to the rotating plate 22 or the driving cylinder 31 connected, inactive. The other baffle plate 34 is also fixedly connected to the output shaft of the driving cylinder 31 through the connecting plate 33, one end of the positioning plate 32 is in contact with the fixed baffle plate 34, and the driving mechanism drives the movable The baffle plate 34 approaches or moves away from the positioning plate 32 to clamp or loosen the workpiece 11 .

At this time, the pressing mechanism 35 is arranged on the side of the rotating plate 22 close to the fixed baffle plate 34 to ensure that the pressing shaft 351 can contact and act on the workpiece 11 .

It should be understood that the number of the baffles 34 is not limited to two, and their thickness and number should be set according to actual needs. Specifically, when the length of the workpiece 11 is less than the transverse length of the driving cylinder 31, the baffle plate 34 should be fixed on the inner side of the connecting plate 33, that is, on the side close to the workpiece 11, so that the The baffle 34 can contact the workpiece 11, and the thickness and quantity of the baffle 34 can be increased or changed accordingly. When the length of the workpiece 11 is greater than the lateral length of the driving cylinder 31, the baffle plate 34 is not limited to be fixed on the inside and outside of the connecting plate 33, and the thickness and number do not need to be changed.

Further, the positioning plate 32 is provided with a fixing groove (not shown in the figure), and the fixing groove is a groove protruding from the surface of the positioning plate 32 or recessed from the surface of the positioning plate 32 for The workpiece 11 is placed. Specifically, the positioning plate 32 is detachably connected to the rotating plate 22 , such as a screw connection and a buckle connection. For workpieces 11 of different specifications, the positioning plate 32 provided with corresponding fixing grooves can be replaced to improve the compatibility of the turning fixture.

Furthermore, as shown in FIG. 4, the positioning plate 32 is provided with a processing hole 320, the specification of the processing hole 320 is smaller than or equal to the specification of the transmission hole 220, and the processing hole 320 is used to expose the back of the workpiece 11 and The processing range of the workpiece is limited so that the rotating mechanism 2 rotates the workpiece 11 and faces the back surface of the workpiece 11 to the processing equipment, so that the laser beam is transmitted to the back surface of the workpiece 11 for processing.

Further, the turning fixture also includes a reset detection mechanism 4, which is fixed on the side of the mounting base 1 away from the rotation mechanism 2, and is used to detect whether the rotation mechanism 2 is reset back to origin.

The reset detection mechanism 4 includes a pointer 41 and a photoelectric switch 42 , the pointer 41 is fixedly connected with the rotation mechanism 2 , and rotates as the rotation mechanism 2 rotates. Specifically, the pointer 41 is disposed on a side of the connecting shaft 202 away from the rotating plate 22 , and the pointer 41 rotates with the connecting shaft 202 . The photoelectric switch 42 is disposed on a side of the mounting base 1 away from the rotating mechanism 2 and corresponds to the connecting shaft 202 . The photoelectric switch 42 is used to sense the pointer 41 to check whether the rotating mechanism 2 returns to the original point.

More specifically, as shown in Figures 1 and 3, the photoelectric switch 42 is provided with a U-shaped groove 421, and when the rotating mechanism 2 returns to the original point (rotating 360°), the pointer 41 is inserted into the U-shaped groove 421. In the groove 421, at this moment, the next workpiece 11 can be replaced to continue processing. Otherwise, if the pointer 41 is not inserted into the U-shaped groove 421, it means that the rotating mechanism 2 has not been reset, and product replacement cannot be performed.

The steps of applying the flipping processing jig provided by the embodiment of the present invention to process the workpiece are as follows:

1. Select a positioning plate suitable for the workpiece and install it on the rotating plate;

2. Place the workpiece on the positioning plate, the driving cylinder drives the baffle to clamp the workpiece, the rotating cylinder rotates the pressing shaft to act on the workpiece from another direction, the baffle Cooperate with the pressing mechanism to fix the workpiece to prevent the workpiece from falling when rotating.

3. Process the workpiece facing the front of the processing equipment;

4. The driving motor drives the rotating plate to rotate, drives the positioning mechanism and the workpiece to rotate, and replaces the processing surface;

Wherein, when the rotating plate rotates 90 degrees clockwise or 270 degrees counterclockwise, the processing equipment processes the side of the workpiece; when the rotating plate rotates 180 degrees, the processing equipment processes the The reverse side/back side of the workpiece is processed. In this embodiment, the flipping processing jig can load the workpiece at one time, and can process three surfaces of the workpiece in turn, reducing the number of manual loading and improving work efficiency.

5. The photoelectric switch is used to detect whether the pointer returns to the U-shaped groove of the photoelectric switch. If it returns to the U-shaped groove, the rotating mechanism is reset, and the next product can be replaced to continue processing.

The utility model is not limited to the above-mentioned embodiment, the above is the preferred implementation of the utility model, this embodiment is only used to illustrate the utility model and not to limit the scope of the utility model, it should be pointed out that for ordinary people in the technical field For those skilled in the art, without departing from the principle of the utility model, some improvements and modifications can also be made, and these improvements and modifications in equivalent forms should also be considered to be included in the protection scope of the utility model.

Claims (6)

1. A turning fixture, characterized in that, comprising: a mounting seat, a rotating mechanism and a positioning mechanism; The rotating mechanism includes a rotating plate and a driving mechanism, the rotating plate is suspended on the mounting seat, the output end of the driving mechanism passes through the side of the mounting seat and the end of the rotating plate close to the driving mechanism fixedly connected; the end of the rotating plate away from the driving mechanism is provided with a connecting shaft, and the connecting shaft is rotationally connected to the side of the mounting seat away from the driving mechanism; The positioning mechanism is fixed on the rotating plate, and the positioning mechanism is used for loading and positioning workpieces; The driving mechanism is used to drive the rotary plate to rotate so as to process different surfaces of the workpiece. 2. The turning fixture according to claim 1, characterized in that, the rotating plate is hollow, and a transmission hole is provided corresponding to the workpiece, so that the driving mechanism drives the rotating plate to turn over, and the rotating plate is turned over. The back side of the workpiece is processed. 3. The turning fixture according to claim 2, wherein the positioning mechanism comprises a driving cylinder, a positioning plate, a connecting plate, a baffle plate and a pressing mechanism, The driving cylinder, the positioning plate and the pressing mechanism are fixed on the rotating plate, and the pressing mechanism is arranged on the end of the rotating plate away from the driving cylinder, and the positioning plate corresponds to the transmission hole; One end of the connecting plate is fixedly connected to the output shaft of the driving cylinder, and the other end is connected to the baffle, the baffle is close to the positioning plate, and the positioning plate is used to load the workpiece; The driving cylinder is used to drive the baffle to clamp or loosen the workpiece for loading and unloading; The pressing mechanism is used to act on the workpiece from a direction parallel to the baffle, and the pressing mechanism cooperates with the baffle to fix the workpiece. 4. The turning fixture according to claim 3, wherein the pressing mechanism comprises a pressing shaft and a rotating cylinder; The rotary cylinder is fixed at the bottom of the positioning plate, and its output end is fixed with the pressing shaft; The rotary cylinder is used to drive the pressing shaft to rotate, so that the pressing shaft touches the workpiece to fix the workpiece. 5 . The turning fixture according to claim 3 , wherein the positioning plate is provided with a processing hole, the processing hole corresponds to the transmission hole, and the specification of the processing hole is not larger than the transmission hole. 6 . 6. The overturning processing jig according to claim 1, characterized in that, the overturning processing jig further comprises a reset detection mechanism, and the reset detection mechanism is fixed on the side of the mounting seat away from the rotating mechanism, and the Reset detection mechanism includes pointer and photoelectric switch; The pointer is fixedly connected with the rotating mechanism and rotates with the rotating mechanism; The photoelectric switch is fixed on the side of the mounting seat away from the rotating mechanism, and is used for sensing the pointer.