CN217665164U - Clamping mechanism and brake beam laser cleaning device - Google Patents

Abstract

The utility model relates to the technical field of brake beam cleaning, and provides a clamping mechanism and a brake beam laser cleaning device; the clamping mechanism is used for clamping the end part of the brake beam during cleaning and comprises a chuck, a clamping groove matched with the end part of the brake beam is arranged on the chuck, and a horn-shaped guide opening is formed in the end part of the clamping groove; the chuck is rotationally connected with the rotary seat, and a rotary return spring is connected between the chuck and the rotary seat; the rotary seat is arranged in the sliding frame, and an offset return spring is connected between the rotary seat and the sliding frame; the sliding frame is connected with the sliding seat in a sliding manner, and a clamping return spring is connected between the end part of the sliding seat and the end part of the adjacent sliding frame; and the clamping driving component is connected with the sliding seat so as to drive the sliding seat to be close to or far away from the end part of the brake beam. The utility model discloses make the chuck can deflect, the translation according to the clamping gesture and the position of brake beam, be convenient for adapt to the not brake beam that targets in place of clamping.

Description

Clamping mechanism and brake beam laser cleaning device

Technical Field

The utility model relates to a brake beam washs technical field, particularly, relates to a fixture and brake beam laser belt cleaning device.

Background

The brake beam is the most important part of the basic brake device of the railway vehicle, and mainly plays a role of transmitting braking force to a brake shoe through the brake beam when the vehicle is braked so as to stop the vehicle from moving forward. In the remanufacturing process of the brake beam, strict quality control needs to be carried out on remanufactured parts. The annular grooves at the two end parts of the brake beam frame are most concentrated in stress during normal operation. The combination of dimensional changes and stress concentrations make this a dangerous cross section. During remanufacturing, the part needs to be cleaned, and nondestructive testing is carried out on the part after cleaning, so that defective products with defects such as fatigue cracks are eliminated.

For the cleaning of the brake beam, a sand blasting process is mostly adopted in the prior art, and the sand blasting is gradually eliminated because of the defects of incomplete cleaning, large material consumption, large damage to a base material, easy dust pollution and the like. At present, the laser cleaning is mostly adopted (the laser cleaning forms a laser beam with a specific facula shape and energy distribution by utilizing the difference of pollutants and metal base materials in laser absorption rate and continuous or pulse laser with high brightness and good directivity through optical focusing and facula shaping, the laser beam irradiates the position of a polluted material to be cleaned, after the pollutant material attached to the polluted material absorbs the laser energy, a series of complex physical processes such as vibration, gasification and the like can be generated, and finally the pollutants are separated from the surface of the material), and the method has the advantages of cleanness, environmental protection, more thorough cleaning, small base material damage and the like.

In the prior art (for example, a laser cleaning device disclosed in a patent with publication number "CN215466695U", and a laser cleaning machine for automatically cleaning a train brake beam disclosed in a patent with publication number "CN 216757490U"), when the brake beam is cleaned by laser, the brake beam is clamped on a tool, the tool is transported to a cleaning station by a transport device (for example, a double-speed chain), two ends of the brake beam are clamped by symmetrically arranged chucks, and the laser head is moved by a mechanical arm to clean annular grooves at two ends of a brake beam frame.

However, the chuck arranged in the prior art clamps the end of the brake beam in a manner similar to a manner that two fingers hold an object, and can be well adapted only when the brake beam is regularly clamped in the tool, when the brake beam is not clamped in place (for example, one end of the brake beam is tilted upwards or the brake beam is in an inclined state or other postures), the situation that the chuck cannot be clamped is easily caused, and further cleaning is difficult to smoothly carry out.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fixture and brake beam laser belt cleaning device solves prior art and is difficult to the technical problem of centre gripping when the brake beam clamping is not in place.

The embodiment of the utility model discloses a realize through following technical scheme:

a clamping mechanism for clamping an end of a brake beam during cleaning, comprising:

the clamping head is provided with a clamping groove matched with the end part of the brake beam, and the end part of the clamping groove is provided with a horn-shaped guide port;

the chuck is rotationally connected with the rotary seat, and a rotary return spring is connected between the chuck and the rotary seat;

the rotary seat is arranged in the sliding frame, and an offset return spring is connected between the rotary seat and the sliding frame;

the sliding frame is connected with the sliding seat in a sliding manner, and a clamping return spring is connected between the end part of the sliding seat and the end part of the adjacent sliding frame;

and the clamping driving component is connected with the sliding seat so as to drive the sliding seat to be close to or far away from the end part of the brake beam.

Optionally, the chuck is connected with the rotary seat through a radial spherical plain bearing.

Optionally, the chuck is fixedly connected with a connecting shaft, the connecting shaft is fixedly connected with a rotating shaft, and the rotating shaft is connected with the rotary seat through a radial spherical plain bearing.

Optionally, a counterweight is arranged at one end of the rotating shaft, which is far away from the chuck, and a plurality of rotary return springs are connected between the counterweight and the rotary seat.

Optionally, sliding grooves are formed in two sides of the sliding seat, sliding blocks matched with the sliding grooves are arranged on two sides of the sliding frame, the clamping return springs are arranged at two ends of the sliding grooves, and end portions of the clamping return springs abut against end portions of the sliding blocks.

Optionally, the clamping driving part is mounted on the supporting frame, and the sliding seat is connected with the supporting frame in a sliding manner.

The utility model also provides a brake beam laser belt cleaning device, including the transfer chain that is used for supporting the support frock board of brake beam and is used for transmitting the support frock board, the both sides of transfer chain are equipped with wiper mechanism, and the both sides of transfer chain all are equipped with above-mentioned arbitrary one fixture.

Optionally, the cleaning mechanism comprises:

the laser cleaning head is arranged on one side of the chuck;

the laser cleaning head is provided with a ball head piece, the guide piece is provided with an annular guide groove matched with the ball head piece, and the shape of the annular guide groove corresponds to that of annular grooves at two ends of the brake beam frame;

the rotary driving part is arranged on the clamping mechanism and connected with a first connecting piece, a second connecting piece is arranged on the laser cleaning head, the first connecting piece is connected with the second connecting piece in a sliding mode, and the first connecting piece is driven to rotate through the rotary driving part so as to drive the laser cleaning head to rotate.

Optionally, the brake system further comprises a centering mechanism, the centering mechanism is arranged on one side of the clamping mechanism at the upstream side of the conveying line, the centering mechanism comprises a push plate and a centering driving part, and the push plate is connected with the centering driving part so as to be pushed to be close to or far away from the end part of the brake beam through the centering driving part.

The utility model also provides a brake beam laser cleaning method, adopt above-mentioned arbitrary one brake beam laser belt cleaning device, including following step:

s1, clamping a workpiece on a supporting tool plate;

s2, conveying the supporting tooling plate between the two clamping mechanisms through a conveying line;

s3, starting a clamping driving part to clamp the end parts of the two ends of the brake beam;

and S4, starting the cleaning driving part to drive the laser cleaning head to rotate around the annular grooves at the two end parts of the movable beam frame, and cleaning the inside of the annular groove.

The utility model discloses at least, following advantage and beneficial effect have: in the utility model, the end part of the clamping groove is provided with a horn-shaped guide port, which is convenient for the end parts of the brake beams in various postures to enter the guide groove; the chuck is rotationally connected with the rotary seat, so that the chuck can rotate, and the brake beam with certain rotation in a posture can be conveniently adapted; because the rotary seat is arranged in the sliding frame, and the offset return spring is connected between the rotary seat and the sliding frame, the chuck can have certain moving space in the vertical and horizontal directions, and is convenient to adapt to the brake beam with certain offset in the vertical and horizontal directions; the sliding frame is connected with the sliding seat in a sliding manner, and a clamping return spring is connected between the end part of the sliding seat and the end part of the adjacent sliding frame; the chuck has certain moving space along the length direction of the brake beam, and is suitable for brake beam with certain deviation in the length direction. In addition, the return spring, the offset return spring and the clamping return spring are arranged so that the brake beam is delivered after cleaning to quickly return the collet for clamping the next brake beam.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on these drawings without inventive efforts.

Fig. 1 is a schematic structural view of a clamping mechanism provided by the present invention;

fig. 2 is a schematic structural view of a clamping mechanism (hidden supporting frame) provided by the present invention;

FIG. 3 is a schematic view of the chuck;

FIG. 4 is a schematic view of the connection structure between the rotary base, the connection shaft, the sliding frame and the sliding base;

FIG. 5 is a top view of FIG. 4;

FIG. 6 isbase:Sub>A cross-sectional view A-A of FIG. 5;

fig. 7 is a schematic structural view of a brake beam laser cleaning apparatus provided in the present invention;

FIG. 8 is a schematic view of the structure of the support tooling plate;

FIG. 9 is a view showing a clamping state of the brake beam with the support tooling plate clamped;

FIG. 10 is a schematic view of the cleaning mechanism;

FIG. 11 is a schematic view of a laser cleaning head;

FIG. 12 is a schematic structural view of the centering mechanism;

icon: 100-clamping mechanism, 101-clamping head, 101 a-clamping groove, 101 b-guide opening, 102-rotary seat, 103-sliding frame, 103 a-sliding block, 104-sliding seat, 104 a-sliding groove, 104 b-sliding sleeve, 105-connecting shaft, 106-rotating shaft, 107-rotary return spring, 108-offset return spring, 109-radial spherical joint bearing, 110-counterweight, 111-guide sliding rod, 112-supporting frame, 113-clamping driving component, 114-spring seat, 115-clamping return spring, 200-conveying line, 300-supporting tooling plate, 400-braking beam, 401-annular groove, 500-cleaning mechanism, 501-laser cleaning head, 501 a-ball head component, 501 b-roller, 502-guide component, 502 a-annular guide groove, 502 b-annular wheel groove, 503-rotary driving component, 504-first connecting component, 505-second connecting component, 506-dust suction pipe, 507-dust suction device, 600-mechanism, push plate-annular guide groove, 602-drive component.

Detailed Description

Example one

Referring to fig. 1-6, the present embodiment provides a clamping mechanism, which includes a chuck 101, a rotary base 102, a sliding frame 103, a sliding base 104, and a clamping driving member 113.

The clamping groove 101a matched with the end part of the brake beam 400 is arranged on the chuck 101, and it is easy to understand that the section of the clamping groove 101a vertical to the depth direction is in a corresponding rectangular shape because the end part of the brake beam 400 is in a rectangular shape, the end part of the clamping groove 101a is provided with a horn-shaped guide port 101b, and the horn-shaped guide port 101b expands the space for the end part of the brake beam 400 to enter the clamping groove 101a, so that the end parts of the brake beam 400 in various postures can conveniently enter the guide groove.

The chuck 101 is rotatably connected with the rotary base 102, the chuck 101 is fixedly connected with a connecting shaft 105, the connecting shaft 105 is fixedly connected with a rotating shaft 106, specifically, the connecting shaft 105 is connected with the rotating shaft 106 through a flange, the chuck 101 is connected with the connecting shaft 105 through a flange, and the rotating shaft 106, the connecting shaft 105 and the chuck 101 are relatively fixed after connection; in other embodiments of the present invention, the connecting shaft 105 and the rotating shaft 106, and the chuck 101 and the connecting shaft 105 may be integrally fixed by welding. In this embodiment, the rotating shaft 106 is connected to the rotating base 102 through the radial spherical bearings 109, so that the rotating shaft 106 can rotate around the axis, and can rotate at a certain angle in any direction, thereby facilitating the chuck 101 to adapt to the brake beam 400 with a certain rotation in posture or a certain deflection angle in any direction.

Be connected with gyration reset spring 107 between chuck 101 and the revolving bed 102, specifically, the one end that the chuck 101 was kept away from to pivot 106 is equipped with the balancing weight 110, is connected with a plurality of gyration reset springs 107 between balancing weight 110 and the revolving bed 102, simultaneously, this embodiment also is connected with a plurality of gyration reset springs 107 between the flange of pivot 106 and the revolving bed 102, the setting of gyration reset spring 107 can be convenient for take place to deflect or rotatory chuck 101 fast reset after the completion of the washing.

Inside the slip frame 103 was located to gyration seat 102, was connected with skew reset spring 108 between gyration seat 102 and the slip frame 103, and the top and the bottom of gyration seat 102 are located to this embodiment skew reset spring 108, and the effect of supporting gyration seat 102 is compromise simultaneously to skew reset spring 108, and it is easy to understand that in other embodiments of the utility model, also can all set up skew reset spring 108 around gyration seat 102. It should be noted that, the offset return spring 108 is provided in this embodiment, so that the chuck 101 can have a certain movement space in the vertical and horizontal directions, which is convenient for adapting to the brake beam 400 having a certain offset in the vertical and horizontal directions, and the offset return spring 108 can facilitate the quick return of the chuck 101 having an offset after the cleaning is completed.

The sliding frame 103 is connected with the sliding base 104 in a sliding way, and a clamping return spring 115 is connected between the end of the sliding base 104 and the end of the adjacent sliding frame 103. Specifically, sliding grooves 104a are formed in two sides of the sliding base 104, sliding blocks 103a matched with the sliding grooves 104a are formed in two sides of the sliding frame 103, and balls can be arranged at the top and the bottom of the sliding grooves 104a to reduce friction, so that the sliding blocks 103a slide smoothly; the spring seats 114 are inserted into the side walls of the two ends of the sliding base 104, the clamping return springs 115 are fixedly connected (for example, welded) to the spring seats 114, and the end portions of the clamping return springs 115 abut against the end portions of the sliding blocks 103a, so that the collet 101 can have a certain moving space in the length direction of the brake beam 400, and is convenient to adapt to the brake beam 400 having a certain offset in the length direction, and under the effect of the clamping return springs 115, the brake beam 400 having different lengths within a certain range can be well clamped. In other embodiments of the present invention, the sliding frame 103 can also realize sliding connection through the guide rail, and the connecting seat for connecting the clamping return spring is disposed at both ends of the guide rail.

The clamping driving member 113 may be an air cylinder, a hydraulic oil cylinder, or an electric push rod, in this embodiment, an air cylinder is preferred, the clamping driving member 113 is installed on the supporting frame 112, the sliding seat 104 is slidably disposed on the top of the supporting frame 112, in this embodiment, the guiding sliding rods 111 are disposed on two sides of the top of the supporting frame 112, two sides of the sliding seat 104 are matched with the guiding sliding rods 111 through the sliding sleeves 104b, in other embodiments of the present invention, a sliding connection may also be formed in a manner that the guide rails are matched with the sliding seat 104, for example, the guide rails are disposed on two sides of the top of the supporting frame 112, and the sliding seat 104 matched with the guide rails is disposed on two sides of the sliding seat 104.

The output end of the clamp drive member 113 is connected to the slide carriage 104 to drive the slide carriage 104 toward or away from the end of the brake beam 400 and thereby move the collet 101 toward or away from the end of the brake beam 400. In practical application, the clamping mechanisms 100 are respectively arranged on two sides of the conveying line 200, when the brake beam 400 is conveyed between the two clamping mechanisms 100, the chuck 101 is close to the end part of the brake beam 400 through the clamping driving part 113 to clamp the end part of the brake beam 400, the annular grooves 401 at two end parts of the beam frame of the brake beam 400 are cleaned through laser, after cleaning is completed, the chuck 101 is retracted through the clamping driving part 113, and the cleaned brake beam 400 is conveyed to the next station.

Example two

Referring to fig. 7-9, the present embodiment provides a brake beam laser cleaning apparatus, which includes a supporting tooling plate 300 for supporting a brake beam 400 and a conveying line 200 for conveying the supporting tooling plate 300, wherein the supporting tooling plate 300 may be the same as the prior art, and two sets of grooves for placing the brake beams 400 are formed thereon, i.e. two brake beams 400 may be placed on one tooling supporting plate, or more brake beams 400 may be placed thereon; the conveying line 200 may be a double-speed chain as in the prior art, but may also be other conveying mechanisms such as a chain scraper conveyor; cleaning mechanisms 500 are arranged on two sides of the conveying line 200, and the clamping mechanisms 100 of the first embodiment are further arranged on two sides of the conveying line 200.

Referring to fig. 1, 2, 10, and 11, the cleaning mechanism 500 includes a laser cleaning head 501, a guide 502, and a rotation driving part 503. The laser cleaning head 501 is provided on one side of the chuck 101, and it will be understood by those skilled in the art that laser is generated by a laser generating device (not shown) and emitted through the laser cleaning head 501 to clean the annular grooves 401 at both ends of the bridge of the brake beam 400.

The laser cleaning head 501 is provided with a ball head part 501a, namely, the end part is in a spherical structure, the guide part 502 is fixedly connected (for example, welded) on the chuck 101, the guide part 502 is provided with an annular guide groove 502a matched with the ball head part 501a, the shape of the annular guide groove 502a corresponds to the annular groove 401 at the two end parts of the beam frame of the brake beam 400, namely, the annular guide groove 502a is designed according to the profile shape of the annular groove 401 at the two end parts of the beam frame of the brake beam 400, and the ball head part 501a is limited in the annular guide groove 502a, so that the laser cleaning head 501 can only move along the annular guide groove 502a when rotating, and the laser head rotates around the annular groove 401 at the two end parts of the beam frame 400. Further, the laser cleaning head 501 of this embodiment is provided with a roller 501b, and the guide member 502 is provided with an annular groove 502b matched with the roller 501b, so that the rotation of the laser cleaning head 501 is smoother.

The rotary driving part 503 is arranged on the clamping mechanism 100, the rotary driving part 503 is connected with a first connecting piece 504, the laser cleaning head 501 is provided with a second connecting piece 505, the first connecting piece 504 and the second connecting piece 505 are connected in a sliding manner, it is worth to say that, because the annular grooves 401 at the two ends of the beam frame of the brake beam 400 are in a waist shape, and the annular guide grooves 502a are also in a waist shape corresponding to the annular grooves, the distance from some parts of the annular guide grooves 502a to the center of the guide piece 502 is long, and the distance from some parts of the annular guide grooves 502 to the center of the guide piece 502 is connected with the second connecting piece 505 in a sliding manner through the first connecting piece 504, so that the position of the laser cleaning head 501 can be changed through the sliding of the second connecting piece 505 relative to the first connecting piece 504, and the positions of the annular guide grooves 502a can be well adapted.

The rotation driving part 503 of this embodiment is a hollow linear motor, and is mounted on the flange of the connecting shaft 105 by screws, when in use, after the two ends of the brake beam 400 are clamped by the clamping mechanism 100, the first connecting part 504 is driven to rotate by the linear motor, so that the laser cleaning head 501 can be driven to rotate around the annular guide groove 502a, and the positions of the annular grooves 401 at the two ends of the beam frame of the brake beam 400 can be cleaned. A dust suction pipe 506 can be further arranged on the laser cleaning head 501, the dust suction pipe 506 faces the annular grooves 401 at the two ends of the beam frame and rotates along with the laser cleaning head 501 during cleaning, and the dust suction pipe 506 is connected with a dust suction device 507 (such as a dust suction machine) so as to suck away cleaned debris, avoid the debris from falling to pollute the environment and also avoid the debris from falling into the equipment and being difficult to clean.

The first connecting member 504 and the second connecting member 505 of this embodiment are slidably connected in a manner that the first connecting member 504 is in a sleeve shape, the second connecting member 505 is in a rod shape, and the second connecting member 505 is slidably disposed inside the first connecting member 504. It is easily understood that in other embodiments of the present invention, the first connecting member 504 and the second connecting member 505 can also be slidably connected by a guide rail.

Referring to fig. 1 and 12, the laser cleaning apparatus for a brake beam according to the present embodiment further includes a centering mechanism 600, wherein the centering mechanism 600 is disposed on the upstream side of the clamping mechanism 100 on the conveyor line 200, i.e., the centering can be performed before cleaning. The centering mechanism 600 includes a push plate 601 and a centering driving member 602, the push plate 601 is connected to the centering driving member 602, and the centering driving member 602 in this embodiment may be an air cylinder, a hydraulic oil cylinder, or an electric push rod, preferably an air cylinder. It should be noted that, the centering mechanisms 600 are respectively disposed on two sides of the conveying line 200, the two centering mechanisms 600 are symmetrically disposed, and when the brake beam 400 carried by the support tooling plate 300 passes through the centering mechanisms 600, the two centering driving members 602 of the two centering mechanisms 600 are simultaneously started, so that the push plate 601 abuts against the end of the brake beam 400, the brake beam 400 is located at a center position in the width direction of the conveying line 200, the centered brake beam 400 enters the space between the clamping mechanisms 100, and the distances from the end of the brake beam 400 to the adjacent chucks 101 are equal.

The embodiment also provides a brake beam laser cleaning method, and the brake beam 400 laser cleaning device comprises the following steps:

s1, clamping a workpiece on a support tooling plate 300, namely placing a brake beam 400 in a groove on the support tooling plate 300;

s11, before clamping, the workpiece firstly reaches the centering mechanism 600 for centering;

s2, conveying the supporting tool plate 300 to a position between the two clamping mechanisms 100 through the conveying line 200;

s3, starting the clamping driving part 113 to clamp the end parts of the two ends of the brake beam 400, and if the posture of the brake beam 400 deflects or translates to some extent, the clamping mechanism 100 can adapt to the situation;

and S4, starting the cleaning driving part to drive the laser cleaning head 501 to rotate around the annular grooves 401 at the two end parts of the beam frame of the moving beam 400, cleaning the inside of the annular grooves 401, repeatedly centering, clamping and cleaning the next brake beam 400 on the supporting tool plate 300 after cleaning, and repeating the steps S1-S4 after cleaning all the brake beams 400 on one tool plate, so as to clean the brake beam 400 on the next supporting tool plate 300.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. A clamping mechanism for clamping an end of a brake beam (400) during cleaning, comprising:

the brake device comprises a chuck (101), wherein a clamping groove (101 a) matched with the end part of a brake beam (400) is formed in the chuck (101), and a horn-shaped guide opening (101 b) is formed in the end part of the clamping groove (101 a);

the chuck is rotatably connected with the rotary seat (102), and a rotary return spring (107) is connected between the chuck (101) and the rotary seat (102);

the rotary mechanism comprises a sliding frame (103), a rotary seat (102) is arranged in the sliding frame (103), and an offset return spring (108) is connected between the rotary seat (102) and the sliding frame (103);

the sliding frame (103) is connected with the sliding base (104) in a sliding manner, and a clamping return spring (115) is connected between the end part of the sliding base (104) and the end part of the adjacent sliding frame (103);

and the clamping driving component (113), and the clamping driving component (113) is connected with the sliding seat (104) so as to drive the sliding seat (104) to be close to or far away from the end part of the brake beam (400).

2. Clamping mechanism according to claim 1, characterized in that the collet (101) is connected with the turret (102) by means of a radial spherical bearing (109).

3. The clamping mechanism according to claim 2, characterized in that the clamping head (101) is fixedly connected with a connecting shaft (105), the connecting shaft (105) is fixedly connected with a rotating shaft (106), and the rotating shaft (106) is connected with the rotary base (102) through a radial spherical joint bearing (109).

4. The clamping mechanism according to claim 3, characterized in that a weight block (110) is arranged at one end of the rotating shaft (106) far away from the clamping head (101), and a plurality of rotary return springs (107) are connected between the weight block (110) and the rotary base (102).

5. The clamping mechanism according to claim 1, wherein sliding grooves (104 a) are formed on two sides of the sliding base (104), sliding blocks (103 a) matched with the sliding grooves (104 a) are formed on two sides of the sliding frame (103), the clamping return spring (115) is arranged at two ends of the sliding grooves (104 a), and the end of the clamping return spring (115) is abutted against the end of the sliding block (103 a).

6. Clamping mechanism according to any one of claims 1-5, further comprising a support frame (112), wherein the clamping drive member (113) is mounted on the support frame (112), and wherein the slide (104) is slidably connected to the support frame (112).

7. A brake beam laser cleaning device, comprising a support tooling plate (300) for supporting a brake beam (400) and a conveyor line (200) for conveying the support tooling plate (300), wherein cleaning mechanisms (500) are provided on both sides of the conveyor line (200), characterized in that the clamping mechanism (100) according to any one of claims 1-6 is provided on both sides of the conveyor line (200).

8. The brake beam laser cleaning apparatus of claim 7, wherein the cleaning mechanism (500) comprises:

the laser cleaning head (501), the laser cleaning head (501) is arranged on one side of the chuck (101);

the laser cleaning head (501) is provided with a ball head piece (501 a), the guide piece (502) is provided with an annular guide groove (502 a) matched with the ball head piece (501 a), and the shape of the annular guide groove (502 a) corresponds to the annular grooves (401) at two ends of a beam frame of the brake beam (400);

the rotary driving component (503) is arranged on the clamping mechanism (100), the rotary driving component (503) is connected with a first connecting piece (504), a second connecting piece (505) is arranged on the laser cleaning head (501), the first connecting piece (504) is connected with the second connecting piece (505) in a sliding mode, the first connecting piece (504) is driven to rotate through the rotary driving component (503), and therefore the laser cleaning head (501) is driven to rotate.

9. The brake beam laser cleaning device according to claim 7, further comprising a centering mechanism (600), wherein the centering mechanism (600) is arranged on the upstream side of the clamping mechanism (100) on the conveyor line (200), the centering mechanism (600) comprises a push plate (601) and a centering driving part (602), and the push plate (601) is connected with the centering driving part (602) so as to push the push plate (601) to be close to or far away from the end part of the brake beam (400) through the centering driving part (602).

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