A laser shock strengthening light outlet anti-collision device

Abstract

The present invention discloses a light outlet anti-collision device for laser shock strengthening, including a telescopic component, a rotating connector and a supporting and fixing structure; the supporting and fixing structure includes an upper pressure shoe and a lower support, one end of the upper pressure shoe is connected to one end of the lower support by a pin shaft, the other end of the upper pressure shoe is connected to the other end of the lower support by a bolt, the upper pressure shoe is provided with a first groove, the lower support is provided with a second groove, the first groove and the second groove fit together to form a mounting ball hole; the rotating connector includes a joint inner ring, the joint inner ring is installed in the mounting ball hole; the telescopic component includes a light outlet straight tube, a telescopic tube and a conical tube connected in sequence. The present invention adopts the working principle that the light outlet tube can be freely extended horizontally and freely rotated with the center of the ball. The structural design is simple, reliable, highly applicable and easy to maintain. It avoids damage caused by the robot colliding with the light outlet tube, and can also restore the light path in time and quickly. It is suitable for laser shock strengthening processing of various frequencies.

Description

Technical Field

[0001] The invention belongs to the technical field of laser shock strengthening, and in particular relates to a light outlet anti-collision device for laser shock strengthening. Background Art

[0002] Laser shock peening technology is one of the most advanced metal material surface strengthening technologies. It uses short pulse (ns level) and high peak power density (above 109W / cm2) laser to penetrate the confinement layer and impact the laser absorption protective film covering the metal surface, generating high-pressure transient plasma shock waves. The shock wave pressure of up to GPa produces high-strain plastic deformation on the surface of the metal material, forming a large residual compressive stress. At the same time, the microstructure undergoes a great change, which can significantly improve the metal material's resistance to external damage, corrosion and other fatigue properties.

[0003] During the laser shock strengthening process, when the robot clamps the workpiece and moves, colliding with the light output tube, it will cause damage to the workpiece. At the same time, the collision will change the light path, causing damage to the light output tube and affecting subsequent processing. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art and to provide a light outlet anti-collision device for laser shock strengthening which can solve the problem of damage to the workpiece and breakage of the light outlet tube when the robot clamps the workpiece and collides with the light outlet tube, and can quickly restore the position of the light outlet tube after a collision without affecting subsequent processing.

[0005] In order to solve the technical problem, the technical solution of the present invention is:

[0006] A light outlet anti-collision device for laser shock strengthening, comprising a telescopic component, a rotating connecting piece and a supporting and fixing structure;

[0007] The supporting and fixing structure comprises an upper pressure shoe and a lower support, one end of the upper pressure shoe is pin-connected to one end of the lower support, the other end of the upper pressure shoe is bolt-connected to the other end of the lower support, a first groove is provided on the upper pressure shoe, a second groove is provided on the lower support, and the first groove and the second groove are fitted together to form a mounting ball hole;

[0008] The rotating connection member comprises a joint inner ring, and the joint inner ring is installed in the mounting ball hole;

[0009] The telescopic assembly comprises a straight light-emitting tube, a telescopic tube and a cone tube connected in sequence, one end of the straight light-emitting tube is connected to the inner ring of the joint and the other end is sleeved on one end of the telescopic tube, and the other end of the telescopic tube is fixedly connected to the large-diameter end of the cone tube.

[0010] Preferably, it also includes a plurality of first ball screws, a plurality of second ball screws and a plurality of third ball screws, a plurality of first positioning holes are provided on the circumferential direction of the light-emitting straight tube, a second positioning hole is provided on the upper pressure shoe along the circumferential direction of the first groove, a third positioning hole is provided on the lower support along the circumferential direction of the second groove, a first positioning groove is provided on the telescopic tube along the circumferential direction, and the first ball screw is installed in the first positioning hole and embedded in the first positioning groove to adjust the relative position of the telescopic tube and the light-emitting straight tube;

[0011] A second positioning groove is provided on the circumferential edge of the inner ring of the joint, and a second ball screw is installed in the second positioning hole and embedded in the second positioning groove to adjust the relative position of the upper pressure shoe and the inner ring of the joint;

[0012] The third ball screw is installed in the third positioning hole and embedded in the second positioning groove to adjust the relative position of the lower support and the inner ring of the joint.

[0013] Preferably, it also includes a hinge bolt and a butterfly nut for tightening and adjusting the upper pressure shoe and the lower support.

[0014] Preferably, the cone tube is made of nylon material.

[0015] Preferably, the joint inner ring is made of brass material.

[0016] Preferably, the number of the first ball-end screws is 6 and they are evenly distributed along the circumference of the light-emitting straight tube, the number of the second ball-end screws is 3 and they are evenly distributed along the circumference of the first groove, and the number of the third ball-end screws is 2 and they are evenly distributed along the circumference of the second groove.

[0017] Preferably, the centers of curvature of the first groove on the upper pressure shoe and the second groove on the lower support are consistent with the center of the inner ring of the joint, and are clearance-matched with the inner ring of the joint.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] (1) The present invention is provided with a rotating connector and a telescopic structure, and utilizes the inner ring of the joint so that when the robot moves while clamping a workpiece and collides with the light emitting tube, the light emitting tube can freely extend and retract in the horizontal direction and can freely rotate in other directions, thereby avoiding damage to the light emitting tube and optimizing the structure;

[0020] (2) The present invention provides a ball screw for positioning, which can achieve the purpose of quickly restoring the optical path after a collision occurs, thereby reducing the time required to restore the optical path;

[0021] (3) The cone tube in the present invention is made of nylon material, so when the workpiece collides with the light-emitting tube, it can avoid damage to the workpiece caused by collision;

[0022] (4) The supporting and fixing structure of the present invention adopts a form in which the upper pressure shoe and the lower support are separated, which has a reasonable structure, simple operation, and convenient disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the light outlet anti-collision device for laser shock strengthening of the present invention;

[0024] Figure 2 It is a cross-sectional view of a rotating connecting member in the light outlet anti-collision device for laser shock strengthening of the present invention;

[0025] Figure 3 It is a cross-sectional view of the supporting and fixing structure in the light outlet anti-collision device for laser shock strengthening of the present invention;

[0026] Description of reference numerals:

[0027] 1. Upper pressure shoe, 2. Lower support, 3. Inner ring of joint, 4. Light-emitting straight tube, 5. Telescopic tube, 6. Conical tube, 7. First ball screw, 8. Second ball screw, 9. Third ball screw, 10. Visible bolt, 11. Disc nut. DETAILED DESCRIPTION

[0028] The specific implementation of the present invention is described below in conjunction with the accompanying drawings and embodiments:

[0029] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them, and are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0030] At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the purpose of convenience of description, and are not used to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should be regarded as the scope of implementation of the present invention without substantially changing the technical content.

[0031] like Figure 1-3 As shown, a light outlet anti-collision device for laser shock strengthening includes a telescopic component, a rotating connecting piece and a supporting and fixing structure;

[0032] The supporting and fixing structure includes an upper pressure pad 1 and a lower support 2, one end of the upper pressure pad 1 is pin-connected to one end of the lower support 2, and the other end of the upper pressure pad 1 is bolt-connected to the other end of the lower support 2. The upper pressure pad 1 is provided with a first groove, and the lower support 2 is provided with a second groove. The first groove and the second groove fit together to form a mounting ball hole;

[0033] Specifically, it also includes a movable bolt 10 and a butterfly nut 11 for tightening and adjusting the upper pressure shoe 1 and the lower support 2.

[0034] The upper pressure pad 1 is fixedly connected to the lower support 2 at one end by a cylindrical pin, and the other end is fixed to the lower support 2 by a movable bolt 9 through a cylindrical pin. When the upper pressure pad 1 and the lower support 2 are pressed tightly, they are tightened and adjusted by the butterfly nut 11 and the movable bolt 10.

[0035] The rotating connecting part includes a joint inner ring 3, which is installed in a mounting ball hole formed by a first groove and a second groove; the joint inner ring 3 and the supporting fixing mechanism are co-centric, and based on the co-centric principle, the joint inner ring 3 can rotate 360°, and when a collision occurs, the light emitting tube can rotate freely in a certain direction, thereby achieving the purpose of anti-collision.

[0036] The joint inner ring 3 is built into the mounting ball hole of the supporting and fixing mechanism. Its principle is similar to that of the joint bearing, and it can rotate and swing at any angle during movement.

[0037] Specifically, it also includes a plurality of first ball screws 7, a plurality of second ball screws 8 and a plurality of third ball screws 9. A plurality of first positioning holes are provided on the light emitting straight tube 4 along the circumference, a second positioning hole is provided on the upper pressure shoe 1 along the circumference of the first groove, and a third positioning hole is provided on the lower support 2 along the circumference of the second groove;

[0038] A first positioning groove is provided on the telescopic tube 5 along the circumferential direction, and a first ball screw 7 is installed in the first positioning hole and embedded in the first positioning groove to adjust the relative position of the telescopic tube 5 and the light emitting straight tube 4;

[0039] A second positioning groove is provided on the joint inner ring 3 along the circumferential direction, and a second ball screw 8 is installed in the second positioning hole and embedded in the second positioning groove to adjust the relative position of the upper pressure shoe 1 and the joint inner ring 3;

[0040] The third ball screw 9 is installed in the third positioning hole and embedded in the second positioning groove to adjust the relative position of the lower support 2 and the joint inner ring 3.

[0041] Ball screws are a derivative product of set screws, which are composed of springs, steel balls, and shells. Ball screws are often used in molds, fixtures, assembly, etc. They use springs with a certain pressure to push the ball to make the locking parts run smoothly. The steel ball of the ball screw is installed and matched with the positioning groove and embedded in the positioning groove, so as to achieve the purpose of positioning and resetting.

[0042] The telescopic assembly includes a light emitting straight tube 4, a telescopic tube 5 and a tapered tube 6 which are connected in sequence. One end of the light emitting straight tube 4 is connected to the joint inner ring 3 and the other end thereof is sleeved on one end of the telescopic tube 5. The other end of the telescopic tube 5 is fixedly connected to the large-diameter end of the tapered tube 6. The outer circle of the telescopic tube 5 is installed with the inner hole of the light emitting straight tube 4. The positioning groove provided on the telescopic tube 5 is positioned and connected by the first ball screw 8. The end of the tapered tube 6 is a conical mouth, and a workpiece is placed behind the tapered tube 6.

[0043] Specifically, the cone tube 6 is made of nylon material, so that when the workpiece collides with the light-emitting tube, the workpiece is prevented from being damaged by collision.

[0044] Specifically, the joint inner ring 3 is made of brass material.

[0045] Specifically, the number of first ball screws 7 is 6 and evenly distributed along the circumference of the telescopic tube 5, the number of second ball screws 8 is 3 and evenly distributed along the circumference of the first groove, and the number of third ball screws 9 is 2 and evenly distributed along the circumference of the second groove. The positioning adopts the 3 / 6 positioning method of the ball screw, which can quickly restore the original optical path.

[0046] Specifically, the centers of curvature of the first groove of the upper pressure shoe 1 and the second groove of the lower support 2 are consistent with the center of the joint inner ring 3, and the mounting ball hole and the joint inner ring 3 are clearance-matched. Through the principle of spherical center, the joint inner ring 3 can rotate 360°, and the light emitting tube can change direction freely when a collision occurs, thereby achieving the purpose of anti-collision.

[0047] The working principle of the present invention is:

[0048] The telescopic assembly of the present invention adopts a telescopic structure, which can be freely extended and retracted in the horizontal direction, and can avoid impact damage in the horizontal direction; the inner ring 3 of the joint is cocentric with the upper pressure shoe 1 and the lower support 2. According to the principle of cocentricity, the inner ring 3 of the joint can rotate 360°, and the light emitting tube can change direction freely when a collision occurs, thereby achieving the purpose of anti-collision; the cone tube 6 is made of nylon material, and when the workpiece collides with the light emitting tube, it avoids damage to the workpiece caused by collision; the positioning adopts a ball screw 3 / 6 positioning method, and the original light path can be quickly restored.

[0049] This design allows the light-emitting tube to be freely extended and retracted in the horizontal direction, and according to the principle of the same spherical center, it can rotate freely when colliding, avoiding damage to the light-emitting tube and optimizing the structure; the ball screw positioning can achieve the purpose of quickly restoring the light path after a collision, reducing the time for restoring the light path; the cone tube 6 is made of nylon material, and when the workpiece collides with the light-emitting tube, it avoids damage to the workpiece caused by collision. The support and fixing mechanism of this structure adopts the upper pressure shoe 1 and the lower support 2 in a separate form, with a reasonable structure, simple operation, and convenient disassembly and maintenance.

[0050] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

[0051] Many other changes and modifications may be made without departing from the concept and scope of the present invention.It should be understood that the present invention is not limited to the specific embodiments, and the scope of the present invention is defined by the appended claims.

Claims

1. A laser shock peening light outlet anti-collision device, characterized in that: It includes a telescopic component, a rotating connecting piece and a supporting and fixing structure; The supporting and fixing structure comprises an upper pressure shoe and a lower support, one end of the upper pressure shoe is pin-connected to one end of the lower support, the other end of the upper pressure shoe is bolt-connected to the other end of the lower support, a first groove is provided on the upper pressure shoe, a second groove is provided on the lower support, and the first groove and the second groove are fitted together to form a mounting ball hole; The rotating connection member comprises a joint inner ring, and the joint inner ring is installed in the mounting ball hole; The telescopic assembly comprises a straight light-emitting tube, a telescopic tube and a cone tube connected in sequence, one end of the straight light-emitting tube is connected to the inner ring of the joint and the other end thereof is sleeved on one end of the telescopic tube, and the other end of the telescopic tube is fixedly connected to the large-diameter end of the cone tube; It also includes a plurality of first ball screws, a plurality of second ball screws and a plurality of third ball screws. A plurality of first positioning holes are provided on the circumferential direction of the light-emitting straight tube, a second positioning hole is provided on the circumferential direction of the first groove on the upper pressure shoe, a third positioning hole is provided on the circumferential direction of the second groove on the lower support, a first positioning groove is provided on the circumferential direction of the telescopic tube, and the first ball screw is installed in the first positioning hole and embedded in the first positioning groove to adjust the relative position of the telescopic tube and the light-emitting straight tube; A second positioning groove is provided on the circumferential edge of the inner ring of the joint, and a second ball screw is installed in the second positioning hole and embedded in the second positioning groove to adjust the relative position of the upper pressure shoe and the inner ring of the joint; The third ball screw is installed in the third positioning hole and embedded in the second positioning groove to adjust the relative position of the lower support and the inner ring of the joint; The cone tube is made of nylon material; The joint inner ring is made of brass material.

2. The laser shock peening light outlet anti-collision device according to claim 1, characterized in that: It also includes a movable bolt and a butterfly nut for tightening and adjusting the upper pressure shoe and the lower support.

3. The laser shock peening light outlet anti-collision device according to claim 1, characterized in that: The number of the first ball screws is 6 and they are evenly distributed along the circumference of the light-emitting straight tube, the number of the second ball screws is 3 and they are evenly distributed along the circumference of the first groove, and the number of the third ball screws is 2 and they are evenly distributed along the circumference of the second groove.

4. The laser shock peening light outlet anti-collision device according to any one of claims 1 to 3, characterized in that: The curvature centers of the first groove on the upper pressure shoe and the second groove on the lower support are consistent with the center of the inner ring of the joint, and are in clearance with the inner ring of the joint.

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