CN217097362U

CN217097362U - Clamp for special-shaped workpiece

Info

Publication number: CN217097362U
Application number: CN202122923792.8U
Authority: CN
Inventors: 李志谦; 黄嘉耀; 欧惠玲; 何广安
Original assignee: Foshan City Gaoming District Senior Technical School
Current assignee: Foshan City Gaoming District Senior Technical School
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2022-08-02
Anticipated expiration: 2031-11-24

Abstract

The utility model discloses an anchor clamps for abnormal shape work piece, set up in the clamping part at mount both ends including mount and relative to and be used for driving clamping part reciprocating motion's actuating mechanism, the clamping part can take place deformation along with the difference of work piece surface structure for the clamping mechanism that is equipped with the elasticity portion, the clamping part is equipped with the clamp plate of being connected with the actuating mechanism transmission, the clamp plate is equipped with pressure sensor, pressure sensor and actuating mechanism respectively with the controller electric connection who sets up. The utility model provides a clamp for special-shaped workpieces, the clamp is provided with the clamping part with the elastic component, so that the contact surface of the clamp and the workpiece can deform along with the structure of the workpiece, thereby having better adaptability and ensuring that the clamp can clamp the special-shaped workpieces more stably; through the pressure sensor who sets up, can real-time inspection clamp plate pressure, avoid because of the centre gripping tension, cause the damage to the opposite sex work piece.

Description

Clamp for special-shaped workpiece

Technical Field

The utility model relates to an anchor clamps technical field, in particular to special-shaped is anchor clamps for work piece.

Background

The clamp is an important tool in the machining process and is used for fixing a machined workpiece in the machining process, and the workpiece is clamped by the clamp so as to be convenient to operate. The existing clamp is usually used for clamping workpieces with regular shapes, and for some special-shaped workpieces, due to the fact that the structure is irregular, if the conventional clamp is adopted, the attaching effect is poor, and the conventional clamp cannot be stably fixed, so that the clamp is not suitable for use.

Among the prior art, to the centre gripping of heterotypic work piece, have elastic clamping part through setting up, during the anchor clamps centre gripping, elastic clamping part can take place deformation according to the work piece structure, and the laminating is better, consequently, the centre gripping work piece that can more stabilize.

However, in the existing clamp for the special-shaped workpiece, the feeding amount of the clamping jaw is difficult to determine during clamping, when the feeding amount is large, a certain part of the workpiece is easy to deform, and when the feeding amount is small, the clamping is unstable. It is seen that improvements and enhancements to the prior art are needed.

SUMMERY OF THE UTILITY MODEL

In view of the foregoing prior art's weak point, an object of the utility model is to provide an abnormal shape is anchor clamps for work piece aims at solving among the prior art to the centre gripping of abnormal shape work piece, is difficult to the centre gripping firm and do not damage the work piece.

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

the utility model provides an abnormal shape is anchor clamps for work piece, includes the mount and sets up in the clamping part at mount both ends relatively to and be used for driving clamping part reciprocating motion's actuating mechanism, wherein, the clamping part is the fixture who is equipped with the elastic component, can take place deformation along with work piece surface structure's difference, the clamping part is equipped with the clamp plate of being connected with the actuating mechanism transmission, the clamp plate is equipped with pressure sensor, pressure sensor and actuating mechanism respectively with the controller electric connection who sets up.

In the clamp for the special-shaped workpiece, the pressing plate comprises a first pressing plate, a second pressing plate and an elastic connecting layer for connecting the first pressing plate and the second pressing plate, the pressure sensor is arranged in the elastic connecting layer, and the thickness of the pressure sensor is the same as that of the elastic connecting layer.

In the clamp for the special-shaped workpiece, the clamping part further comprises a plurality of top pillars arranged on the pressing plate, one end of each top pillar is fixed on the pressing plate through an elastic component, and the other end of each top pillar is in contact with the workpiece.

In the clamp for the special-shaped workpiece, the top columns are arranged on the pressing plate in a rectangular array.

In the clamp for the special-shaped workpiece, the fixing frame is provided with a fixing frame, the fixing frame comprises a first fixing plate vertically connected with the fixing frame, the driving mechanism and the clamping part are respectively arranged on two sides of the first fixing plate, and the output end of the driving mechanism penetrates through the first fixing plate to be connected with the pressing plate.

In the fixture for the special-shaped workpiece, a second fixing plate which is parallel to the fixing frame is arranged at the lower end of the first fixing plate, sliding grooves are formed in the second fixing plate and the fixing frame, the sliding grooves of the second fixing plate are parallel to the sliding grooves of the fixing frame and the moving direction of an output shaft of the driving mechanism, a protruding block is arranged at the position, corresponding to the sliding grooves, of the pressing plate, and the protruding block is connected with the sliding grooves in a sliding mode.

In the clamp for the special-shaped workpiece, a first limiting plate is further arranged between the first fixing plate and the pressing plate, the first limiting plate is parallel to the pressing plate and provided with a first limiting hole, and an output shaft of the driving mechanism penetrates through the first limiting hole to be connected with the pressing plate.

In the clamp for the special-shaped workpiece, the fixing frame further comprises a second limiting plate, the top of the second limiting plate is parallel to the pressing plate, the top of the second limiting plate is perpendicularly connected with the bottom of the fixing frame, the second limiting plate is provided with a plurality of second limiting holes corresponding to the ejection columns, and one ends, opposite to the elastic parts, of the ejection columns penetrate through the second limiting holes to be in contact with the workpiece.

In the clamp for the special-shaped workpiece, the number of the second limiting plates is two.

Has the advantages that:

the utility model provides a clamp for a special-shaped workpiece, which is provided with a clamping part with an elastic component, so that the contact surface of the clamp and the workpiece can deform along with the structure of the workpiece, thereby having better adaptability and ensuring that the clamp can clamp the special-shaped workpiece more stably; through the pressure sensor who sets up, can real-time inspection clamp plate pressure, avoid because of the centre gripping tension, cause the damage to the opposite sex work piece.

Drawings

Fig. 1 is a schematic structural view of the clamp for irregular workpieces provided by the present invention.

Fig. 2 is a schematic view showing the arrangement of the top pillars on the pressing plate.

The figures are numbered: 1-a fixed frame, 2-a clamping part, 3-a driving mechanism, 4-an output shaft, 5-a pressing plate, 6-an elastic component, 7-a top column, 8-a pressure sensor, 9-a first pressing plate, 10-a second pressing plate, 11-an elastic connecting layer, 12-a first fixing plate, 13-a second fixing plate, 14-a sliding groove, 15-a lug, 16-a first limiting plate, 17-a first limiting hole, 18-a second limiting plate and 19-a second limiting hole.

Detailed Description

The utility model provides an abnormal shape is anchor clamps for work piece, for making the utility model discloses a purpose, technical scheme and effect are clearer, clear and definite, and it is right that the following refers to the attached drawing and the embodiment of lifting is the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are only used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements to be referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be further noted that, unless explicitly stated or limited otherwise, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be mechanically coupled, directly coupled, indirectly coupled through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 and 2, the clamp for the special-shaped workpiece includes a fixing frame 1, clamping portions 2 oppositely disposed at two ends of the fixing frame 1, and a driving mechanism 3 for driving the clamping portions 2 to reciprocate, wherein a space for accommodating the workpiece is formed between the two clamping portions 2, and a distance between the two clamping portions 2 is adjusted by the driving mechanism 3, so as to stably fix the workpiece. The clamping part 2 is a clamping mechanism provided with an elastic component and can deform along with the difference of the surface structure of the workpiece, so that the clamping mechanism has better adaptability. Elastic clamping part 2 includes clamp plate 5 and is a plurality of fore-posts 7 (as shown in fig. 2) of rectangle permutation equipartition in clamp plate 5 one side, the one end that fore-post 7 and clamp plate 5 are connected is equipped with elastomeric element 6, through elastomeric element 6 is connected with clamp plate 5, the other end of fore-post 7 with treat the work piece contact of centre gripping, the opposite side of clamp plate 5 is connected with the output shaft 4 transmission of actuating mechanism 3, through the drive of actuating mechanism 3, clamp plate 5 is on a parallel with mount 1 reciprocating motion. Because the elastic component 6 is arranged at the end, connected with the pressing plate 5, of the ejection column 7, when clamping is performed, the ejection column 7 can deform differently along with different structures of workpieces, and springs corresponding to the ejection columns 7 deform differently, so that the clamping device can adapt to clamping of special-shaped workpieces. The elastic member 6 is a spring or other material capable of elastically deforming, preferably a spring. The driving mechanism 3 is a cylinder or a motor, preferably a cylinder. When the clamping device is used, a workpiece is placed between the two clamping parts 2, the driving mechanism 3 drives the pressing plate 5 to move, so that the clamping parts 2 clamp the workpiece, and the elastic part 6 generates different elastic deformations due to different workpiece structure parts corresponding to the ejection columns 7, so that the ejection columns 7 form a clamping structure adaptive to the workpiece, and the workpiece is stably fixed.

Specifically, as shown in fig. 1, the pressure plate 5 is provided with a pressure sensor 8, the pressure sensor 8 is used for sensing the pressure applied to the pressure plate 5, the pressure sensor 8 and the driving mechanism 3 are respectively electrically connected with a controller, and the controller is used for receiving the signal of the pressure sensor 8 and controlling the switch of the driving mechanism 3. The controller can set the pressure limit of the pressure plate 5, and when the pressure of the pressure plate 5 is larger than the set limit, the controller closes the driving mechanism 3. During the use, pressure sensor 8 collects the pressure that clamp plate 5 received in real time, when actuating mechanism 3 promoted clamp plate 5 and moved to fore-set 7 and compress tightly the work piece, when continuing to promote again, clamp plate 5 displacement no longer changes, and pressure can sharply increase, if actuating mechanism 3 continues to promote, can make the fore-set 7 that partial spring has compressed tightly exert too big pressure to the work piece, lead to the work piece to take place to deform or damage, simultaneously, be the motor when actuating mechanism 3, if the motor idle running after compressing tightly, burn out the motor easily. Therefore, the pressure sensor 8 can sense the pressure on the pressure plate 5 in real time and transmit the pressure to the controller, the controller compares the real-time pressure value with the set pressure limit value, and when the real-time pressure value exceeds the pressure limit value, the driving of the driving mechanism 3 is stopped, so that the phenomenon of overlarge pressure is avoided.

The pressure limit may be set according to the structure and material of the special-shaped workpiece.

As an embodiment, as shown in fig. 1, in the jig for a special-shaped workpiece, the pressure plate 5 includes a first pressure plate 95, a second pressure plate 105, and an elastic connection layer 11 for connecting the first pressure plate 95 and the second pressure plate 105, the pressure sensor 8 is provided in the elastic connection layer 11, and the thickness of the pressure sensor 8 is the same as that of the elastic connection layer 11. When the pressure sensor is used, the pressure sensor 8 can sense the pressure on the pressure plate 5, so that the controller can better control the driving mechanism 3, and the workpiece is prevented from being damaged by clamping.

Specifically, in the clamp for the special-shaped workpiece, the fixing frame 1 is provided with a fixing frame for fixing the clamping part 2 and the driving mechanism 3. Specifically, as shown in fig. 1, the fixing frame includes a first fixing plate 12 vertically connected to the fixing frame 1 and a second fixing plate 13 vertically connected to an end of the first fixing plate 12, and the second fixing plate 13 is disposed in parallel with the fixing frame 1. The driving mechanism 3 and the clamping part 2 are respectively arranged at two sides of the first fixing plate 12, and the output end of the driving mechanism 3 passes through the first fixing plate 12 to be connected with the pressing plate 5.

Preferably, as shown in fig. 1, the second fixing plate 13 and the fixing frame 1 are respectively provided with a sliding groove 14 which are parallel to each other, the pressing plate 5 is provided with a protrusion 15 at a position corresponding to the sliding groove 14, the protrusion 15 is slidably connected with the sliding groove 14, and the sliding groove 14 is parallel to the moving direction of the output shaft 4 of the driving mechanism 3, so that when the driving mechanism 3 pushes the pressing plate 5 to move, the moving direction of the pressing plate can be limited by the provided sliding groove 14 and protrusion 15, so that the pressing plate does not deviate, especially when clamping a special-shaped workpiece, because the deformation of the spring is inconsistent, the pressing plate 5 is inconsistent with the reverse thrust of the spring, and is difficult to keep balance, and the provided sliding groove 14 can keep the pressing plate 5 to move more stably.

More preferably, as shown in fig. 1, in the fixture for the special-shaped workpiece, a first limiting plate 16 is further disposed between the first fixing plate 12 and the pressing plate 5, the first limiting plate 16 is parallel to both the pressing plate 5 and the first fixing plate 12, a first limiting hole 17 is disposed on the first limiting plate 16, and the output shaft 4 of the driving mechanism 3 passes through the first limiting hole 17 and is connected to the pressing plate 5. When the clamping device is used, the first limiting hole 17 can limit the output shaft 4 to reciprocate only along the horizontal direction, so that the deviation is avoided, and the clamping is more stable.

As a further improvement, in the special-shaped workpiece fixture with the above structure, the fixing frame is further provided with a second limiting plate 18 parallel to the pressing plate 5 and the first fixing plate 12, the second limiting plate 18 is arranged on one side of the pressing plate 5 connected with the top pillar 7, the top of the second limiting plate 18 is connected with the fixing frame 1, and the bottom of the second limiting plate 18 is connected with the second fixing plate 13. The second limiting plates 18 are provided with a plurality of second limiting holes 19 corresponding to the ejection columns 7, the number and the size of the second limiting holes 19 are matched with those of the ejection columns 7, and one ends, opposite to the elastic parts 6, of the ejection columns 7 penetrate through the second limiting holes 19 to be in contact with a workpiece to be clamped. Through setting up second limiting plate 18, the motion direction of restriction fore-set 7 that can be better avoids the fore-set 7 when the heterotypic work piece of centre gripping, because of the unevenness on heterotypic work piece surface, leads to each spring atress uneven, and then makes the fore-set 7 take place the skew, leads to the centre gripping unstability.

Furthermore, in the above special-shaped workpiece fixture, the number of the second limiting plates 18 is two, so that the top pillar 7 needs to pass through the two second limiting holes 19 on the same shaft, and therefore, the current movement direction of the top pillar 7 can be better, and the clamping is more stable.

In summary, the clamp for the special-shaped workpiece can sense the pressure applied to the pressing plate in real time by arranging the pressure sensor on the pressing plate, so as to obtain the pressure applied to the workpiece, and can control the switch of the driving mechanism through the pressure, so that a proper clamping force can be kept, and the workpiece damage caused by overlarge pressure is avoided; and the first spacing hole that sets up enables actuating mechanism's output shaft direction of motion steady, and the spacing hole of second that sets up enables the fore-set motion steady, and the spout that sets up enables the clamp plate motion steady, does not take place the skew, and then makes the centre gripping of clamping part to the work piece more stable.

It is understood that equivalents and changes may be made to the technical solution of the present invention and its concept by those skilled in the art, and all such changes and substitutions shall fall within the scope of the appended claims.

Claims

1. The utility model provides an abnormal shape is anchor clamps for work piece, includes the mount and sets up in the clamping part at mount both ends relatively to and be used for driving clamping part reciprocating motion's actuating mechanism, its characterized in that, the clamping part is the fixture who is equipped with the elasticity portion, can take place deformation along with the difference of work piece surface structure, the clamping part is equipped with the clamp plate of being connected with the actuating mechanism transmission, the clamp plate is equipped with pressure sensor, pressure sensor and actuating mechanism respectively with the controller electric connection who sets up.

2. The clamp for the special-shaped workpiece according to claim 1, wherein the pressure plate comprises a first pressure plate, a second pressure plate and an elastic connecting layer for connecting the first pressure plate and the second pressure plate, the pressure sensor is arranged in the elastic connecting layer, and the thickness of the pressure sensor is the same as that of the elastic connecting layer.

3. The special-shaped workpiece clamp according to claim 1, wherein the clamping part further comprises a plurality of top pillars arranged on the pressing plate, one end of each top pillar is fixed on the pressing plate through an arranged elastic component, and the other end of each top pillar is in contact with the workpiece.

4. A profiled workpiece holder as claimed in claim 3 wherein the studs are arranged in a rectangular array on the platen.

5. The special-shaped workpiece fixture as claimed in claim 3, wherein the fixing frame is provided with a fixing frame, the fixing frame comprises a first fixing plate vertically connected with the fixing frame, the driving mechanism and the clamping part are respectively arranged at two sides of the first fixing plate, and the output end of the driving mechanism penetrates through the first fixing plate to be connected with the pressure plate.

6. A special-shaped workpiece fixture according to claim 5, characterized in that the lower end of the first fixing plate is provided with a second fixing plate which is arranged in parallel with the fixing frame, the second fixing plate and the fixing frame are provided with sliding grooves, the sliding grooves of the second fixing plate are parallel with the sliding grooves of the fixing frame and parallel with the motion direction of the output shaft of the driving mechanism, the pressing plate is provided with a convex block corresponding to the sliding grooves, and the convex block is connected with the sliding grooves in a sliding manner.

7. The clamp for the special-shaped workpiece according to claim 5, wherein a first limiting plate is further arranged between the first fixing plate and the pressing plate, the first limiting plate is parallel to the pressing plate and is provided with a first limiting hole, and an output shaft of the driving mechanism penetrates through the first limiting hole to be connected with the pressing plate.

8. The special-shaped workpiece fixture as claimed in claim 5, wherein the fixing frame further comprises a second limiting plate, the top of the second limiting plate is vertically connected with the bottom of the fixing frame, the second limiting plate is provided with a plurality of second limiting holes corresponding to the top posts, and one ends of the top posts, which are opposite to the elastic component, pass through the second limiting holes to be in contact with the workpiece.

9. The special-shaped workpiece fixture as claimed in claim 8, wherein the number of the second limiting plates is two.