CN113492167A

CN113492167A - Novel location is kept off and is pointed and location device

Info

Publication number: CN113492167A
Application number: CN202110777234.7A
Authority: CN
Inventors: 常勇
Original assignee: Guangdong Hongshi Laser Technology Co Ltd
Current assignee: Guangdong Hongshi Laser Technology Co Ltd
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2021-10-12

Abstract

The invention discloses a novel positioning stop finger which comprises a first stop finger block, a first stop finger and a second stop finger, wherein the first stop finger and the second stop finger are fixedly connected to the first stop finger block, a first avoiding groove is formed in the edge of the first stop finger block, and the first stop finger and the second stop finger are respectively positioned on two sides of the opening of the first avoiding groove. Still disclose a positioner, including crossbeam and novel location fender indicate, novel location fender indicates fixed mounting in crossbeam. The invention has the following beneficial effects: support force of different angles is provided for the workpiece through the first clamping finger and the second clamping finger, transverse limiting is provided, transverse sliding of the workpiece is effectively reduced, precision errors are reduced, the workpiece with the complex shape can be suitable, and the effect of improving applicability is achieved.

Description

Novel location is kept off and is pointed and location device

Technical Field

The invention relates to the technical field of positioning stop fingers, in particular to a novel positioning stop finger and a positioning device.

Background

The positioning stop finger is used for providing a positioning function for a workpiece, and the positioning stop finger is fixed at a proper position and then moves the workpiece to the positioning stop finger, so that the workpiece is abutted to the positioning stop finger, the limiting effect on the workpiece is achieved, and the function of positioning the workpiece can be realized.

In the bender, the precision of back fender material system to the bending size is guaranteed, and then the fender material system indicates through keeping off and contact with the work piece, and ordinary fender indicates that generally all carries out the size precision to vertical (X axle) and guarantees, but transversely spacing less, produces transversely rocking easily, causes unnecessary precision error to, to the work piece of some special shapes, need be spacing to the work piece on the equidirectional.

The relatively common rear positioning device of the bending machine, such as the rear positioning and pneumatic material supporting composite device of the bending machine disclosed in the Chinese patent with the publication number of CN203184474U, comprises a mounting seat, a support arm section bar and a finger blocking device which is arranged at the top of the mounting seat and used for rear positioning of a bent workpiece; the upper surface of the mounting seat is provided with a linear guide rail pair, and the lower surface of the mounting seat is provided with a sliding block matched and connected with the linear guide rail of the cross beam; the top and the bottom of the support arm section bar are respectively provided with an upper insertion strip and a lower insertion strip, the upper insertion strip is provided with a material supporting brush, and the lower insertion strip is arranged on the linear guide rail pair in a sliding manner. Through third level fender indicate with the work piece butt, realized carrying out the function of fixing a position for the work piece. However, the third-level stop finger has a simple structure, and cannot meet the requirements for positioning workpieces in different directions, so that the workpieces are prone to transversely shaking, and precision errors are generated.

Disclosure of Invention

In order to solve the above technical problems, an object of the present invention is to provide a novel positioning finger and a positioning device, which includes a novel positioning finger, including a first finger block, a first finger and a second finger, and having the advantages of reducing lateral shaking of a workpiece and having high precision.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

the utility model provides a novel location is kept off and is indicated, indicates the piece including first fender, still includes that first card indicates and the second card indicates, first card indicates and the second card indicates equal fixed connection in first fender indicates the piece, first fender indicates that piece edge is equipped with the first groove of keeping away, first card indicates and the second card indicates the both sides that are located the first groove opening part of keeping away respectively. By such an arrangement: the supporting force of different angles is provided for the workpiece through the first clamping finger and the second clamping finger, the transverse limiting is provided, the transverse sliding of the workpiece is effectively reduced, the precision error is reduced, the workpiece with a complex shape can be suitable for, the effect of improving the applicability is achieved, the device further comprises a second retaining finger block, a third clamping finger and a fourth clamping finger, the second retaining finger block is fixedly connected with the first retaining finger block, the third clamping finger and the fourth clamping finger are fixedly connected to the second retaining finger block, a second avoiding groove is formed in the edge of the second retaining finger block, and the third clamping finger and the fourth clamping finger are located on two sides of the opening of the second avoiding groove respectively. By such an arrangement: support force of different angles is provided for the workpiece through the third clamping finger and the fourth clamping finger, transverse limiting is provided, transverse sliding of the workpiece is effectively reduced, precision errors are reduced, the workpiece with the complex shape can be suitable, and the effect of improving applicability is achieved.

Preferably, the length of the second finger stopping block is smaller than that of the first finger stopping block, and the third finger and the fourth finger are attached to the first finger stopping block. By such an arrangement: when the third clamping finger and the fourth clamping finger are used for positioning the workpiece, the first stop finger block is used for limiting the workpiece, the workpiece can be positioned in multiple directions, and the effect of improving the positioning accuracy of the workpiece is achieved.

Preferably, the first avoiding groove and the second avoiding groove have the same orientation, the second avoiding groove is positioned on one side of the first avoiding groove close to the center of the first stop finger block, the first avoiding groove is positioned in the opening direction of the second avoiding groove, and the second avoiding groove is higher than the first avoiding groove. By such an arrangement: the first finger blocking piece and the second finger blocking piece can position different workpieces in the same direction, and the effect of convenience in use is achieved. The function of positioning the workpiece with a special shape is achieved, and the workpiece can be prevented from being clamped in the machining process.

Preferably, the first finger block is provided with a first side wall and a second side wall which are adjacent to each other, the first side wall is perpendicular to the second side wall, the first avoidance groove is located between the first side wall and the second side wall, the second finger block is provided with a third side wall and a fourth side wall which are adjacent to each other, the third side wall is perpendicular to the fourth side wall, and the second avoidance groove is located between the third side wall and the fourth side wall. By such an arrangement: the applicability to workpieces with complex structures can be further improved.

Preferably, a first arc surface is arranged at one end, away from the first finger blocking block, of the first clamping finger, a second arc surface is arranged at one end, away from the first finger blocking block, of the second clamping finger, a third arc surface is arranged at one end, away from the second finger blocking block, of the third clamping finger, and a fourth arc surface is arranged at one end, away from the second finger blocking block, of the fourth clamping finger. By such an arrangement: the contact positions of the edge of the workpiece and the first clamping finger, the second clamping finger, the third clamping finger and the fourth clamping finger are accurate, the edge of the workpiece is prevented from tilting at the clamping finger, and the effect of improving the positioning precision of the stop finger on the workpiece is achieved.

Preferably, the extending direction of the first finger is perpendicular to the extending direction of the second finger, and the extending direction of the third finger is perpendicular to the extending direction of the fourth finger. By such an arrangement: the workpiece can be positioned in different directions, the workpiece is prevented from shaking in different directions, and the effect of improving the positioning accuracy is achieved.

A positioning device, comprising a cross beam and the novel positioning stop finger of any one of claims 1 to 8, wherein the novel positioning stop finger is fixedly installed on the cross beam. By such an arrangement: the workpiece can be conveniently positioned on the production equipment.

Preferably, the novel positioning stop fingers are arranged in 2, and the 2 novel positioning stop fingers are symmetrically arranged by taking a plane perpendicular to the cross beam as a symmetry center. By such an arrangement: the workpiece is positioned in a plurality of different directions, the workpiece can be more effectively prevented from transversely shaking, and the effect of improving the positioning precision is achieved.

Preferably, the novel positioning stop finger is connected with the cross beam in a sliding mode, the cross beam is fixedly connected with a rack, the novel positioning stop finger is fixedly provided with a servo motor, and an output shaft of the servo motor is fixedly provided with a gear meshed with the rack.

Preferably, the system further comprises a driving module and a control module, wherein the servo motor (33) is electrically connected with the driving module, and the driving module is electrically connected with the control module.

Compared with the prior art, the invention has the beneficial technical effects that:

1. the first clamping finger, the second clamping finger, the third clamping finger and the fourth clamping finger respectively provide supporting force at different angles for the workpiece, and provide transverse limiting, so that the transverse sliding of the workpiece is effectively reduced, the precision error is reduced, the device can be suitable for the workpiece with a complex shape, and the effect of improving the applicability is achieved.

2. The method can be suitable for workpieces with complex shapes, and plays a role in improving the applicability.

3. The first clamping finger, the second clamping finger, the third clamping finger and the fourth clamping finger which are arranged at the first avoidance groove and the second avoidance groove and are different in height are abutted to the workpiece at different height positions simultaneously, the lower side face of the upper workpiece is attached to the upper side face of the first stop finger block, the workpiece can be limited to move horizontally and rotate in the vertical direction, the positioning accuracy of the workpiece in the vertical direction is effectively improved, and the positioning device has the advantage of high positioning accuracy.

Drawings

Fig. 1 is a schematic structural view of a novel positioning stop finger in embodiment 1 of the present invention;

fig. 2 is a schematic structural view of the first finger and the second finger positioning corners of the workpiece in embodiment 1 of the present invention;

FIG. 3 is a schematic structural view of positioning of the bevel edge of the workpiece by the first finger and the second finger in embodiment 1 of the present invention;

FIG. 4 is a schematic structural diagram of positioning of a workpiece by a third finger and a fourth finger in embodiment 1 of the present invention;

fig. 5 is a schematic structural view of the first finger, the second finger, the third finger and the fourth finger simultaneously positioning the workpiece in embodiment 1 of the present invention;

fig. 6 is a schematic structural diagram of a positioning device in embodiment 2 of the present invention;

FIG. 7 is a schematic structural view of a pinion and a rack in embodiment 2 of the invention;

fig. 8 is a schematic circuit diagram of a control module and a drive module in embodiment 2 of the present invention;

fig. 9 is a sectional view of the first finger block and the clamp block in embodiment 3 of the present invention.

Wherein, the technical characteristics that each reference numeral refers to are as follows: 10. a novel positioning stop finger; 11. a first finger block; 12. a first avoiding groove; 13. a first finger; 14. a second finger; 15. a first side wall; 16. a second side wall; 17. a first arc surface; 18. a second arc surface; 21. a second finger stopping block; 22. a second avoiding groove; 23. a third finger; 24. a fourth finger; 25. a third side wall; 26. a fourth side wall; 27. a third arc surface; 28. a fourth arc surface; 31. a cross beam; 32. a rack; 33. a servo motor; 34. a gear; 35. a drive module; 36. a control module; 41. a chute; 42. a clamping block; 43. a spring; 44. a screw; 45. a limiting block; 46. and (5) avoiding space.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments, but the scope of the present invention is not limited to the following embodiments.

Example 1:

referring to fig. 1 to 5, a novel positioning stop finger 10 includes a first stop finger block 11, a first stop finger 13, a second stop finger 14, a second stop finger block 21, a third stop finger 23, and a fourth stop finger 24.

The first clamping finger 13 and the second clamping finger 14 are both fixedly connected to the first finger block 11, a first avoiding groove 12 is formed in the edge of the first finger block 11, and the first clamping finger 13 and the second clamping finger 14 are respectively located on two sides of the opening of the first avoiding groove 12. The first finger block 11 is provided with a first side wall 15 and a second side wall 16 which are adjacent to each other, the first side wall 15 is perpendicular to the second side wall 16, and the first avoiding groove 12 is located between the first side wall 15 and the second side wall 16. The end of the first finger 13 far away from the first finger block 11 is provided with a first arc surface 17, and the end of the second finger 14 far away from the first finger block 11 is provided with a second arc surface 18. The extending direction of the first fingers 13 is perpendicular to the extending direction of the second fingers 14,

the second finger stopping block 21 is fixedly connected with the first finger stopping block 11, the length of the second finger stopping block 21 is smaller than that of the first finger stopping block 11, and the third finger 23 and the fourth finger 24 are attached to the first finger stopping block 11. The edge of the second stop finger block 21 is provided with a second avoiding groove 22, the orientations of the first avoiding groove 12 and the second avoiding groove 22 are the same, the second avoiding groove 22 is positioned on one side of the first avoiding groove 12 close to the center of the first stop finger block 11, the first avoiding groove 12 is positioned in the opening direction of the second avoiding groove 22, and the position height of the second avoiding groove 22 is higher than that of the first avoiding groove 12. The third finger 23 and the fourth finger 24 are both fixedly connected to the second stop block 21, and the third finger 23 and the fourth finger 24 are respectively located at two sides of the opening of the second avoiding groove 22. The second stop finger 21 is provided with a third side wall 25 and a fourth side wall 26 which are adjacent to each other, the third side wall 25 and the fourth side wall 26 are perpendicular to each other, and the second avoiding groove 22 is located between the third side wall 25 and the fourth side wall 26. A third arc surface 27 is arranged at one end of the third finger 23 far away from the second finger stop 21, and a fourth arc surface 28 is arranged at one end of the fourth finger 24 far away from the second finger stop 21. The extending direction of the third fingers 23 is perpendicular to the extending direction of the fourth fingers 24.

The embodiment has the following advantages:

referring to fig. 2, the first avoiding groove 12 is used for accommodating a protruded corner of a workpiece, one corner of the edge of the workpiece is clamped into the first avoiding groove 12, and the first clamping finger 13 and the second clamping finger 14 are respectively abutted to two side edges of the workpiece at different angles, so that supporting force at different angles can be provided for the workpiece through the first clamping finger 13 and the second clamping finger 14, transverse limitation is provided, transverse sliding of the workpiece is effectively reduced, accuracy errors are reduced, the workpiece can be suitable for the workpiece with a complicated shape, and the effect of improving applicability is achieved. Through the setting of first groove 12 of keeping away to the adaptation corner is the work piece of different angles, has the better advantage of adaptability. Referring to fig. 3, the first snap finger 13 and the fourth snap finger 14 are used for positioning the bevel edge of the workpiece, so that the function of positioning the bevel edge of the workpiece can be realized, and the workpiece with different angles of corners can be adapted, and the workpiece positioning device has the advantage of good adaptability.

Referring to fig. 4, the second avoiding groove 22 is used for accommodating a protruded corner of the workpiece, one corner of the edge of the workpiece is clamped into the second avoiding groove 22, and the third finger 23 and the fourth finger 24 are respectively abutted to two side edges of the workpiece at different angles, so that the supporting force at different angles can be provided for the workpiece through the third finger 23 and the fourth finger 24, the transverse limit is provided, the transverse sliding of the workpiece is effectively reduced, the precision error is reduced, the workpiece can be suitable for the workpiece with a complicated shape, and the effect of improving the applicability is achieved. Through the setting of second avoiding groove 22 to the adaptation corner is the work piece of different angles, has the better advantage of adaptability.

Referring to fig. 5, when one end of the workpiece close to the positioning double-layer positioning finger 10 has a double-layer structure formed by bending, the first finger 13, the second finger 14, the third finger 23 and the fourth finger 24 at the first avoidance groove 12 and the second avoidance groove 22 with different heights are abutted to the workpiece at different height positions at the same time, and the lower side surface of the upper layer workpiece is attached to the upper side surface of the first finger blocking block 11, so that the workpiece can be limited to translate and rotate in the vertical direction, the positioning accuracy of the workpiece in the vertical direction is effectively improved, and the positioning double-layer positioning finger has the advantage of higher positioning accuracy.

The width of first fender finger piece 11 is greater than the width of second fender finger piece 21, and when the edge of work piece and third card indicate 23 and fourth card indicate 24 butt, a side of work piece can lean on the tie on first fender finger piece 11 to can be when fixing a position the work piece through third card indicate 23 and fourth card indicate 24, utilize first fender finger piece 11 further to spacing the work piece, and then can fix a position the work piece in a plurality of directions, play the effect that improves the positioning accuracy to the work piece.

The first avoiding groove 12 and the second avoiding groove 22 are arranged in the same direction, so that the first finger stopping block 11 and the second finger stopping block 21 can position different workpieces in the same direction, and the effect of convenient use is achieved. When workpieces of different sizes are required to be positioned, the workpieces of different sizes can be positioned through the first avoidance groove 12 and the second avoidance groove 22 which are different in position, so that the workpieces of different sizes can be positioned at intervals without adjusting the positions of the first avoidance groove 12 and the second avoidance groove 22 for multiple times by adjusting the position of the first avoidance groove 12 and the position of the second avoidance groove 22, and the effect of convenience in use is achieved. The first avoidance groove 12 and the second avoidance groove 22 are located at different heights and different positions, when a workpiece with a special shape needs to be positioned at different heights and different positions, the first clamping finger 13, the second clamping finger 14, the third clamping finger 23 and the fourth clamping finger 24 at the first avoidance groove 12 and the second avoidance groove 22 can be respectively abutted to different positions of the same workpiece, so that the function of positioning the workpiece with the special shape is achieved, the opening directions of the first avoidance groove 12 and the second avoidance groove 22 are the same, the workpiece can be guaranteed to be separated from the first avoidance groove 12 and the second avoidance groove 22 in the bending process of the workpiece, and the workpiece is prevented from being clamped.

The first avoiding groove 12 is arranged at the corner between the first side wall 15 and the second side wall 16 on the first finger blocking block 11, so that the first finger blocking block 11 is prevented from blocking a workpiece, and the applicability to the workpiece with a complex structure can be further improved. The second avoiding groove 22 is arranged at the corner between the third side wall 25 and the fourth side wall 26 on the second stop finger block 21, so that the second stop finger block 21 is prevented from blocking the workpiece, and the applicability to the workpiece with a complicated structure can be further improved. If desired, the workpiece can also be positioned by the first, second, third and

fourth side walls

15, 16, 25, 26 by resting the workpiece flat against the first, second, third and

fourth side walls

15, 16, 25, 26.

When the edge of the workpiece is uneven, the first arc surface 17, the second arc surface 18, the third arc surface 27 and the fourth arc surface 28 are arranged, so that the contact positions of the edge of the workpiece with the first clamping finger 13, the second clamping finger 14, the third clamping finger 23 and the fourth clamping finger 24 are accurate, the edge of the workpiece is prevented from tilting at the clamping finger, and the effect of improving the positioning precision of the stop finger on the workpiece is achieved.

The first clamping finger 13 is perpendicular to the second clamping finger 14, so that the first clamping finger 13 and the second clamping finger 14 can respectively provide transverse and longitudinal limiting for the workpiece, the workpiece can be positioned in different directions, the workpiece is prevented from shaking in different directions, and the effect of improving the positioning accuracy is achieved. The third clamping finger 23 is perpendicular to the fourth clamping finger 24, so that the third clamping finger 23 and the fourth clamping finger 24 can respectively provide transverse and longitudinal limiting for the workpiece, the workpiece can be positioned in different directions, the workpiece is prevented from shaking in different directions, and the effect of improving the positioning accuracy is achieved.

Example 2:

referring to fig. 6, a positioning device includes a cross beam 31 and the novel positioning stop finger 10 in embodiment 1, and the novel positioning stop finger 10 is fixedly mounted on the cross beam 31. The novel positioning stop fingers 10 are arranged in 2, and the 2 novel positioning stop fingers 10 are symmetrically arranged by taking a plane perpendicular to the cross beam 31 as a symmetry center.

Referring to fig. 7, the novel positioning stop finger 10 is slidably connected to the cross beam 31, the cross beam 31 is fixedly connected to a rack 32, the novel positioning stop finger 10 is fixedly installed with a servo motor 33, and an output shaft of the servo motor 33 is fixedly installed with a gear 34 engaged with the rack 32.

Referring to fig. 8, the system further includes a driving module 35 and a control module 36, the driving module 35 employs 2 servo drivers, and the control module 36 employs a PLC. The servo motor 33 is electrically connected to the driving module 35, and the driving module 35 is electrically connected to the control module 36.

The embodiment has the following advantages:

the first finger blocking block 11 of the novel positioning finger blocking 10 is fixedly arranged on the cross beam 31 of the production equipment, so that the workpiece can be conveniently positioned on the production equipment.

The novel positioning baffle finger 10 arranged symmetrically positions two ends of a workpiece, can position the workpiece in a plurality of different directions, can more effectively prevent the workpiece from transversely shaking, and has the effect of improving the positioning precision.

The servo motor 33 drives the gear 34 to rotate, so that the gear 32 moves on the rack 32 meshed with the gear, the function of driving the novel positioning stop finger 10 to slide on the cross beam 31 is achieved, and the effect of conveniently adjusting the position of the novel positioning stop finger 10 on the cross beam 31 is achieved.

According to the material size of production as required, send control command to drive module 35 through control module 36, control drive module 35 drives 2 novel location and keeps off the work of servo motor 33 on indicating 10, plays the effect that conveniently drives novel location and keep off the removal of indicating 10. When needs add man-hour to same work piece on the different angles of work piece, often need to adjust repeatedly novel location fender and indicate the position of 10, and indicate 10 location many times on different positions to same work piece through novel location fender, set up the memory in control module 36, store the position data of a plurality of differences through the memory, and set up the corresponding sequence with the position data of a plurality of differences, the bender is bent the back to the work piece at every turn, control module 36 transfers a position data automatically, and control servo motor 33 work through drive module 35, the novel location fender of drive indicates 10 to remove to different positions, thereby can conveniently fix a position and process many times on different positions to same work piece, can effectively improve production efficiency.

Example 3:

referring to fig. 9, a positioning apparatus, which is different from embodiment 1, is: the first finger block 11 is provided with a sliding groove 41 communicated with the first avoiding groove 12, the sliding groove 41 is located inside the first avoiding groove 12, and the opening direction of the sliding groove 41 is the same as the opening direction of the first avoiding groove 12. The first stop finger block 11 is slidably connected with a clamping block 42 positioned in the first avoiding groove 12, a spring 43 is arranged between the clamping block 42 and the first stop finger block 11, and two ends of the spring 43 are respectively abutted against the clamping block 42 and the first stop finger block 11. The clamping block 42 is provided with a screw 44 in threaded connection with the first finger-blocking block 11 in a penetrating manner, one end, far away from the first finger-blocking block 11, of the screw 44 is fixedly connected with a limiting block 45 clamped with the clamping block 42, and an avoiding space 46 is arranged between the limiting block 45 and the clamping block 42.

The embodiment has the following advantages:

when the workpiece is positioned, the corners of the workpiece are clamped into the first avoidance groove 12, the first clamping finger 13 and the second clamping finger 14 are respectively clamped with the edges of two adjacent sides of the workpiece, the clamping block 42 is abutted to the workpiece extending into the first avoidance groove 12, the spring 43 provides thrust for the clamping block 42, the clamping block 42 abuts against the workpiece, pretightening force is provided for the workpiece, the friction force applied to the workpiece is increased, the stability of the workpiece is improved, the workpiece is prevented from accidentally shaking in the positioning process, and the effect of improving the positioning precision can be achieved.

Variations and modifications to the above-described embodiments may occur to those skilled in the art, which fall within the scope and spirit of the above description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims

1. A novel location fender indicates (10), includes first fender finger piece (11), its characterized in that: the anti-collision device is characterized by further comprising a first clamping finger (13) and a second clamping finger (14), wherein the first clamping finger (13) and the second clamping finger (14) are fixedly connected to the first blocking finger block (11), a first avoiding groove (12) is formed in the edge of the first blocking finger block (11), the first clamping finger (13) and the second clamping finger (14) are respectively located on two sides of the opening of the first avoiding groove (12), the second blocking finger block (21), a third clamping finger (23) and a fourth clamping finger (24) are fixedly connected to the first blocking finger block (11), the third clamping finger (23) and the fourth clamping finger (24) are fixedly connected to the second blocking finger block (21), a second avoiding groove (22) is formed in the edge of the second blocking finger block (21), and the third clamping finger (23) and the fourth clamping finger (24) are respectively located on two sides of the opening of the second avoiding groove (22).

2. The new positioning stop finger (10) according to claim 1, characterized in that: the length of the second finger blocking block (21) is smaller than that of the first finger blocking block (11), and the third finger (23) and the fourth finger (24) are attached to the first finger blocking block (11).

3. The new positioning stop finger (10) according to claim 1, characterized in that: the first avoidance groove (12) and the second avoidance groove (22) are in the same direction, the second avoidance groove (22) is located on one side, close to the center of the first stop finger block (11), of the first avoidance groove (12), the first avoidance groove (12) is located in the opening direction of the second avoidance groove (22), and the position height of the second avoidance groove (22) is higher than that of the first avoidance groove (12).

4. The new positioning stop finger (10) according to claim 1, characterized in that: first fender finger piece (11) are equipped with adjacent first lateral wall (15) and second lateral wall (16), first lateral wall (15) are perpendicular with second lateral wall (16), first keep away position groove (12) and are located between first lateral wall (15) and second lateral wall (16), second fender finger piece (21) are equipped with adjacent third lateral wall (25) and fourth lateral wall (26), third lateral wall (25) and fourth lateral wall (26) are perpendicular, second keep away position groove (22) and are located between third lateral wall (25) and fourth lateral wall (26).

5. The new positioning stop finger (10) according to claim 1, characterized in that: the one end that first fender finger piece (11) were kept away from in first calorie of finger (13) is equipped with first arc surface (17), the one end that first fender finger piece (11) were kept away from in second calorie of finger (14) is equipped with second arc surface (18), the one end that second fender finger piece (21) were kept away from in third calorie of finger (23) is equipped with third arc surface (27), the one end that second fender finger piece (21) were kept away from in fourth calorie of finger (24) is equipped with fourth arc surface (28).

6. The new positioning stop finger (10) according to claim 1, characterized in that: the extending direction of the first clamping finger (13) is perpendicular to the extending direction of the second clamping finger (14), and the extending direction of the third clamping finger (23) is perpendicular to the extending direction of the fourth clamping finger (24).

7. A positioning device, characterized by: the novel positioning stop finger (10) comprises a cross beam (31) and the novel positioning stop finger (10) as claimed in any one of claims 1-6, wherein the novel positioning stop finger (10) is fixedly installed on the cross beam (31).

8. The positioning device of claim 7, wherein: the novel positioning stop finger (10) is provided with 2 fingers and 2 fingers, and the novel positioning stop finger (10) is symmetrically arranged by taking a plane perpendicular to the cross beam (31) as a symmetry center.

9. The positioning device of claim 7, wherein: novel location fender indicates (10) and crossbeam (31) sliding connection, crossbeam (31) fixedly connected with rack (32), novel location fender indicates (10) fixed mounting has servo motor (33), servo motor (33) output shaft fixed mounting has gear (34) with rack (32) meshing.

10. The positioning device of claim 9, wherein: still include drive module (35) and control module (36), servo motor (33) and drive module (35) electric connection, drive module (35) and control module (36) electric connection.