Graduated scale laser scale marking device

Abstract

The invention relates to the technical field of micrometer marking, in particular to a graduated scale laser scale marking device which comprises a marking machine, a feeding mechanism is installed on the marking machine, an adjusting mechanism is installed on the feeding mechanism, a dust collection mechanism is installed on the feeding mechanism, a protection mechanism is installed on the feeding mechanism, and a locking mechanism is installed on the feeding mechanism. Through installation of the feeding mechanism, clamping and driving control over a micrometer are facilitated, then marking work is achieved, through installation of the adjusting mechanism, adjustment of the position of the feeding mechanism is facilitated, through driving of the dust collection mechanism, the dust collection mechanism abuts against the locking mechanism, the locking mechanism limits the adjusting mechanism, and through installation of the dust collection mechanism, the working efficiency is improved. Smoke and dust generated during marking are sucked away, pollution to the indoor environment is reduced, shielding protection control over the two sides of one end of the feeding mechanism is facilitated through installation of the protection mechanism, and shielding protection during marking is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of micrometer marking, and specifically relates to a laser scale marking device for a scale. Background Art

[0002] A screw micrometer, also known as a micrometer, a screw micrometer gauge, or a vernier caliper, is a more precise tool for measuring length than a vernier caliper. It can measure length accurately to 0.01 mm, and its measuring range is several centimeters. Part of it is processed into a thread with a pitch of 0.5 mm. When it rotates in the screw sleeve of the fixed sleeve B, it will move forward or backward. The movable sleeve C and the screw are integrated, and its periphery is equally divided into 50 grids. The number of full turns of the screw rotation is measured by the scale lines spaced 0.5 mm apart on the fixed sleeve, and the part less than one turn is measured by the scale lines on the periphery of the movable sleeve. The final measurement result needs to be estimated to one decimal place.

[0003] During the production process of a micrometer, it is necessary to mark the micrometer with a laser marking machine. When the traditional marking machine marks the micrometer, it is not convenient to suck away and clean the generated fumes, which is easy to cause indoor environmental pollution. And during marking, there is a lack of safety protection measures, which is easy to cause debris to fly out. At the same time, when laser marking, it will produce dazzling flames, which will cause harm to the eyes. Moreover, the fixtures are all installed through multiple bolts, but when marking micrometers of different lengths, it is not convenient to adjust and control the fixtures, so the operation is very cumbersome. Summary of the Invention

[0004] In view of the problems in the prior art, the present invention provides a laser scale marking device for a scale.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a laser scale marking device for a scale, including a marking machine, on which a feeding mechanism is installed, on which an adjusting mechanism is installed, on which a dust suction mechanism is installed, on which a protection mechanism is installed, and on which a locking mechanism is installed.

[0006] Specifically, the feeding mechanism includes a mounting seat, the mounting seat is installed on the marking machine, one side of the top of the mounting seat is rotatably connected with a three-jaw chuck, the other side of the top of the mounting seat is detachably connected with a servo motor, and the output shaft of the servo motor is connected to the central axis of the three-jaw chuck.

[0007] Specifically, the dust suction mechanism includes a through groove, the mounting seat is of an "L" shape, a through groove is provided inside the bottom of the mounting seat, one end of the through groove extends to the outside of the mounting seat at the top, the three-jaw chuck is located above the through groove, and a dust suction pipe is installed on the mounting seat and extends into the through groove.

[0008] Specifically, a connecting plate is connected to the top of one end of the mounting seat, the connecting plate is a frame-type structure, a protective net is installed on the connecting plate, and the protective net is located at the top of the through slot.

[0009] Specifically, a card slot is provided at the top edge of one end of the mounting seat, and a card block is slidably connected inside the card slot. The cross-sections of the card block and the card slot are both "凸" shaped structures. The tops of the two card blocks extend to the outside of the card slot and are vertically connected to the bottom of the connecting plate. The connecting plate is slidably connected to the top of the mounting seat through the cooperation of the card block and the card slot. A handle is installed at the center of the outer side of one end of the connecting plate, and the handle is a "凵" shaped structure.

[0010] Specifically, the protective mechanism includes a protective plate, and two protective plates are vertically connected to the edge of one side of the top of the mounting seat, the two protective plates are located on the outside of the three-jaw chuck, one end of the two protective plates is slidably connected to the inside of the mounting seat through a movable groove, and a plurality of interference springs are connected between one end of the two protective plates and the inside of the mounting seat, and bolts are threadedly connected at the center of both sides of the mounting seat, and the bolts extend to the inside of the mounting seat and interfere with the side walls of the protective plates.

[0011] Specifically, the adjustment mechanism includes a mounting plate, which is detachably connected to the marking machine, two parallel guide rails are fixedly connected to the top edge of the mounting plate, two guide grooves are provided at the bottom edge of the mounting seat, and the cross-sections of the guide grooves and guide rails are both "T"-shaped structures. The bottom of the mounting seat is slidably connected to the top of the mounting plate through the guide grooves and guide rails, and side panels are respectively installed at both ends of the mounting plate, and the side panels are in conflict with the guide rails.

[0012] Specifically, the locking mechanism includes a limit plate, and the limit plates are respectively installed at the inner center lines of both sides of the mounting seat. The limit plates are of a "convex" shaped structure, and are slidably connected to the inside of the mounting seat through a connecting spring. The top of the limit plate is a semicircular structure, and the top of the limit plate extends to the inside of the card slot and contacts with the card block, and the bottom of the limit plate extends to the inside of the guide slot and contacts with the top of the guide rail. The bottom of the limit plate and the top of the guide rail are both toothed structures.

[0013] The beneficial effects of the present invention are:

[0014] (1) The laser scale marking device of the scale ruler described in the present invention is convenient for clamping and driving control of the micrometer through the installation of the feeding mechanism, thereby realizing the marking work. The installation of the adjusting mechanism is convenient for adjusting the position of the feeding mechanism, that is, the installation of the mounting seat is convenient for connecting the servo motor and the three-jaw chuck. The installation of the three-jaw chuck is convenient for clamping one end of the micrometer to realize marking on the outside of the micrometer. The three-jaw chuck is driven by the servo motor to achieve uniform marking on the outside of the micrometer. The installation of the mounting plate is convenient for connecting the mounting seat. The cooperation of the guide groove and the guide rail facilitates the sliding of the mounting seat and the top of the mounting plate, thereby realizing the adjustment of the position of the mounting seat, which is convenient for clamping and marking micrometers of different lengths. The operation is more convenient. The disassembly and assembly of the side plate is convenient for limiting the mounting seat and sliding out and disassembling.

[0015] (2) The laser marking device for a scale described in the present invention is driven by a dust suction mechanism to achieve a contact between the dust suction mechanism and the locking mechanism, so that the locking mechanism limits the adjustment mechanism, that is, by installing two limit plates, under the pull of the connecting spring, the limit plates shrink and separate from the guide rails, so that the mounting seat and the mounting plate can be easily adjusted by sliding. By inserting the connecting plate and engaging the clamping block with the inside of the clamping slot, the clamping block contacts the top of the limit plate, and the limit plate slides down to get rid of the pulling force of the connecting spring, so that the bottom of the limit plate contacts and limits the guide plate, and the mounting seat and the mounting plate cannot slide.

[0016] (3) The laser marking device for a scale described in the present invention is convenient for extracting smoke and dust generated during marking through the installation of a dust suction mechanism, thereby reducing indoor environmental pollution. That is, the installation of a dust suction pipe facilitates connection with an external dust suction pipe. The opening of a through slot facilitates the collection of dust generated during marking. The suction of the through slot is facilitated by the suction pipe through the external vacuum cleaner, thereby facilitating the extraction of smoke and dust generated during marking, thereby reducing indoor environmental pollution. The installation of a connecting plate facilitates the connection of a protective net, thereby facilitating shielding and protection of the top of the through slot to prevent materials or accessories from falling into the through slot and being extracted. The opening of a card slot facilitates the detachable connection between the connecting plate and the top of the mounting seat with the cooperation of the card block, thereby realizing maintenance of the protective net. The installation of a handle facilitates the drive control of the connecting plate.

[0017] (4) The scale laser marking device described in the present invention is conducive to the control of shielding and protection on both sides of one end of the feeding mechanism through the installation of a protective mechanism, and is convenient for shielding and protection during marking, that is: through the installation of two protective plates, the protective plates slide out under the resistance of the resistance spring, which is conducive to shielding and protection on both sides of the three-jaw chuck, thereby preventing debris from flying out when the micrometer is laser marked, and at the same time facilitating the collection and extraction of smoke, and preventing laser glare. When not in use, by pressing the protective plate, the protective plate shrinks under the elastic force of the resistance spring, and then the bolt is turned to achieve the resistance limit of the protective plate. Brief Description of the Drawings

[0018] The present invention will be further described below in conjunction with the drawings and embodiments.

[0019] Figure 1 Schematic diagram of the overall structure provided by the present invention;

[0020] Figure 2 Schematic diagram of the connection structure between the mounting base and the mounting plate of the present invention;

[0021] Figure 3 Schematic diagram of the connection structure between the protective plate and the mounting base of the present invention;

[0022] Figure 4 Schematic diagram of the connection structure between the three-jaw chuck, the servo motor and the mounting base of the present invention;

[0023] Figure 5 Schematic diagram of the connection structure between the protective net and the connecting plate of the present invention;

[0024] Figure 6 Schematic diagram of the connection structure between the abutment spring and the protective plate of the present invention;

[0025] Figure 7 Schematic diagram of the connection structure between the limiting plate and the mounting base of the present invention;

[0026] Figure 8 Schematic diagram of the connection structure between the connecting spring and the limiting plate of the present invention;

[0027] Figure 9 Schematic diagram of the guide rail structure of the present invention.

[0028] In the figure: 1, marking machine; 2, feeding mechanism; 201, mounting base; 202, servo motor; 203, three-jaw chuck; 3, adjusting mechanism; 301, mounting plate; 302, guide rail; 303, side plate; 304, guide groove; 4, dust suction mechanism; 401, handle; 402, protective net; 403, dust suction pipe; 404, connecting plate; 405, card slot; 406, through slot; 407, card block; 5, protection mechanism; 501, protective plate; 502, moving slot; 503, bolt; 504, abutment spring; 6, locking mechanism; 601, limiting plate; 602, connecting spring. Detailed Description of the Invention

[0029] In order to make the technical means, creative features, achieved purposes and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0030] Such as Figure 1 , Figure 3 , Figure 4 and Figure 8As shown in the figure, a laser marking device for a scale ruler according to the present invention includes a marking machine 1, and a feeding mechanism 2 is installed on the marking machine 1. An adjusting mechanism 3 is installed on the feeding mechanism 2, a dust suction mechanism 4 is installed on the feeding mechanism 2, a protection mechanism 5 is installed on the feeding mechanism 2, and a locking mechanism 6 is installed on the feeding mechanism 2.

[0031] Specifically, as Figure 1 、 Figure 2 、 Figure 3 and Figure 4 shown, the feeding mechanism 2 includes a mounting base 201, and the mounting base 201 is installed on the marking machine 1. A three-jaw chuck 203 is rotatably connected to one side of the top of the mounting base 201, and a servo motor 202 is detachably connected to the other side of the top of the mounting base 201. The output shaft of the servo motor 202 is connected to the central axis of the three-jaw chuck 203. Through the installation of the mounting base 201, it is beneficial to connect the servo motor 202 and the three-jaw chuck 203. Through the installation of the three-jaw chuck 203, it is beneficial to clamp one end of the micrometer, so as to realize marking on the outer side of the micrometer. Through the drive control of the servo motor 202, the three-jaw chuck 203 can be driven, so that the outer side of the micrometer can be evenly marked.

[0032] Specifically, as Figure 3 and Figure 4 shown, the dust suction mechanism 4 includes a through groove 406. The mounting base 201 is in an "L" shape. A through groove 406 is provided inside the bottom of the mounting base 201. One end of the top of the through groove 406 extends to the outside of the mounting base 201. The three-jaw chuck 203 is located at the top of the through groove 406. A dust suction pipe 403 is installed on the mounting base 201, and the dust suction pipe 403 extends into the through groove 406. Through the installation of the dust suction pipe 403, it is beneficial to connect with the external dust suction pipe 403. Through the opening of the through groove 406, it is beneficial to pick up the dust generated by marking. Through the air extraction of an external vacuum cleaner, the dust suction pipe 403 can extract air from the through groove 406, which is beneficial to sucking away the smoke and dust generated during marking and reducing the pollution of the indoor environment.

[0033] Specifically, as Figure 2 、 Figure 3 and Figure 5 shown, one end of the top of the mounting base 201 is connected with a connecting plate 404. The connecting plate 404 is in a frame structure. A protective net 402 is installed on the connecting plate 404. The protective net 402 is located at the top of the through groove 406. Through the installation of the connecting plate 404, it is beneficial to connect the protective net 402, so as to facilitate the shielding and protection of the top of the through groove 406 and prevent materials or accessories from falling into the through groove 406 and being sucked away.

[0034] Specifically, as Figure 4And Figure 5 As shown, at the top edge of one end of the mounting base 201, clamping grooves 405 are respectively provided. Inside the clamping grooves 405, clamping blocks 407 are respectively slidably connected. The cross-sections of the clamping blocks 407 and the clamping grooves 405 are both "convex"-shaped structures. The tops of the two clamping blocks 407 extend to the outside of the clamping grooves 405 and are vertically connected to the bottom of the connecting plate 404. The connecting plate 404 is slidably connected to the top of the mounting base 201 through the cooperation of the clamping blocks 407 and the clamping grooves 405. At the center of the outer side of one end of the connecting plate 404, a handle 401 is installed. The handle 401 is in a "U"-shaped structure. Through the opening of the clamping grooves 405, with the cooperation of the clamping blocks 407, it is convenient for the connecting plate 404 to be detachably connected to the top of the mounting base 201, thereby realizing the maintenance of the protective net 402. Through the installation of the handle 401, it is convenient to drive and control the connecting plate 404.

[0035] Specifically, as Figure 2 、 Figure 3 、 Figure 4 And Figure 6 As shown, the protection mechanism 5 includes protection plates 501. Two protection plates 501 are vertically connected to the top edge of one side of the mounting base 201. The two protection plates 501 are located outside the three-jaw chuck 203. One end of the two protection plates 501 is slidably connected to the inside of the mounting base 201 through a movable groove 502. A plurality of abutting springs 504 are connected between one end of the two protection plates 501 and the inside of the mounting base 201. Bolts 503 are respectively threadedly connected to the centers of both sides of the mounting base 201. The bolts 503 extend to the inside of the mounting base 201 and abut against the side walls of the protection plates 501. Through the installation of the two protection plates 501, under the abutment of the abutting springs 504, the protection plates 501 slide out, which is beneficial to shielding and protecting both sides of the three-jaw chuck 203. Thus, when laser marking the micrometer, it can prevent debris from flying out, and at the same time, it is convenient for the flue gas to gather and be evacuated, and it can also prevent laser from being dazzling. When not in use, by pressing the protection plates 501, the protection plates 501 contract under the action of getting rid of the elastic force of the abutting springs 504, and then by rotating the bolts 503, the abutting and limiting of the protection plates 501 are realized.

[0036] Specifically, as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 And Figure 9As shown, the adjustment mechanism 3 includes a mounting plate 301, and the marking machine 1 is detachably connected with the mounting plate 301. Two parallel guide rails 302 are fixedly connected at the top edge of the mounting plate 301. Two guide grooves 304 are provided at the bottom edge of the mounting seat 201. The cross sections of the guide grooves 304 and the guide rails 302 are both "T"-shaped structures. The bottom of the mounting seat 201 is slidably connected to the top of the mounting plate 301 through the guide grooves 304 and the guide rails 302. Side panels 302 are respectively installed at both ends of the mounting plate 301. 03, the side panel 303 is in conflict with the guide rail 302. The installation of the mounting plate 301 facilitates the connection of the mounting seat 201. The cooperation of the guide groove 304 and the guide rail 302 facilitates the sliding of the mounting seat 201 and the top of the mounting plate 301, thereby realizing the adjustment of the position of the mounting seat 201, which is convenient for clamping and marking micrometers of different lengths, and the operation is more convenient. The disassembly and assembly of the side panel 303 facilitates the limiting and sliding disassembly of the mounting seat 201.

[0037] Specifically, Figure 7 , Figure 8 and Figure 9 As shown, the locking mechanism 6 includes a limit plate 601, and the limit plates 601 are respectively installed at the inner midlines of both sides of the mounting seat 201. The limit plates 601 are of a "convex" shape. The limit plates 601 are slidably connected to the inside of the mounting seat 201 through a connecting spring 602. The top of the limit plate 601 is a semicircular structure. The top of the limit plate 601 extends to the inside of the card slot 405 and contacts the card block 407. The bottom of the limit plate 601 extends to the inside of the guide slot 304 and contacts the top of the guide rail 302. The bottom of the limit plate 601 and the top of the guide rail 302 are both toothed structures. The two limit plates 601 are installed. Under the pulling of the connecting spring 602, the limit plates 601 shrink and separate from the guide rail 302, so as to facilitate the sliding adjustment of the mounting seat 201 and the mounting plate 301. By inserting the connecting plate 404, the block 407 is engaged with the inside of the slot 405, and the block 407 contacts the top of the limit plate 601. The limit plate 601 is freed from the pulling force of the connecting spring 602 and slides down, so that the bottom of the limit plate 601 contacts and limits the guide plate, and the mounting seat 201 and the mounting plate 301 cannot slide.

[0038] When the present invention is in use, firstly, through the installation of the mounting base 201, it is beneficial to connect the servo motor 202 and the three-jaw chuck 203. Through the installation of the three-jaw chuck 203, it is beneficial to clamp one end of the micrometer, so as to realize marking on the outer side of the micrometer. Through the driving control of the servo motor 202, the three-jaw chuck 203 is driven, so that the outer side of the micrometer can be evenly marked. Through the installation of the mounting plate 301, it is beneficial to connect the mounting base 201. Through the cooperation of the guide groove 304 and the guide rail 302, it is beneficial for the mounting base 201 to slide on the top of the mounting plate 301, and then the position of the mounting base 201 can be adjusted, which is convenient for clamping and marking micrometers of different lengths, and the operation is more convenient. Through the disassembly and assembly of the side plate 303, it is beneficial to limit the position of the mounting base 201 and slide it out for disassembly. Through the installation of the two limit plates 601, under the pulling of the connecting spring 602, the limit plate 601 contracts and separates from the guide rail 302, which is convenient for the sliding adjustment of the mounting base 201 and the mounting plate 301. After inserting the connecting plate 404 and the block 407 is engaged with the inside of the card slot 405, the block 407 abuts against the top of the limit plate 601, and the limit plate 601 slides down to get rid of the pulling force of the connecting spring 602, realizing the bottom of the limit plate 601 abuts against the guide plate for limiting, and the mounting base 201 and the mounting plate 301 cannot slide. Through the installation of the suction pipe 403, it is beneficial to connect with the external suction pipe 403. Through the opening of the through groove 406, it is beneficial to pick up the dust generated by marking. Through the air extraction of the external vacuum cleaner, the suction pipe 403 extracts the air in the through groove 406, which is beneficial to extract the smoke and dust generated during marking and reduce the pollution of the indoor environment. Through the installation of the connecting plate 404, it is beneficial to connect the protective net 402, which is convenient for shielding and protecting the top of the through groove 406 to prevent materials or accessories from falling into the through groove 406 and being extracted. Through the opening of the card slot 405, with the cooperation of the block 407, it is convenient for the connecting plate 404 to be detachably connected to the top of the mounting base 201, and then the maintenance of the protective net 402 can be realized. Through the installation of the handle 401, it is convenient to drive and control the connecting plate 404. Through the installation of the two protective plates 501, under the abutment of the abutment spring 504, the protective plates 501 slide out, which is beneficial to shield and protect both sides of the three-jaw chuck 203, so as to prevent debris from flying out when the micrometer is laser marked. At the same time, it is convenient for the smoke to gather and be extracted, and it can also prevent laser from being dazzling. When not in use, by pressing the protective plate 501, the protective plate 501 contracts under the action of getting rid of the elastic force of the abutment spring 504, and then rotating the bolt 503 realizes the abutment and limitation of the protective plate 501.

[0039] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Accordingly, all changes that fall within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0040] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only one independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A laser marking device for a scale, characterized in that, The marking machine (1) comprises a feeding mechanism (2) installed on the marking machine (1), an adjusting mechanism (3) installed on the feeding mechanism (2), a dust collecting mechanism (4) installed on the feeding mechanism (2), a protective mechanism (5) installed on the feeding mechanism (2), and a locking mechanism (6) installed on the feeding mechanism (2); The feeding mechanism (2) comprises a mounting seat (201), the mounting seat (201) is mounted on the marking machine (1), one side of the top of the mounting seat (201) is rotatably connected to a three-jaw chuck (203), the other side of the top of the mounting seat (201) is detachably connected to a servo motor (202), and the output shaft of the servo motor (202) is connected to the central shaft of the three-jaw chuck (203); The dust suction mechanism (4) comprises a through groove (406), the through groove (406) is provided on the inner side of the bottom of the mounting seat (201), the top of one end of the through groove (406) extends to the outside of the mounting seat (201), the three-jaw chuck (203) is located at the top of the through groove (406), and a dust suction pipe (403) is installed on the mounting seat (201), and the dust suction pipe (403) extends to the inside of the through groove (406).

2. The laser scale marking device for a scale according to claim 1, characterized in that: The mounting seat (201) is an "L"-shaped structure. A connecting plate (404) is connected to the top of one end of the mounting seat (201). The connecting plate (404) is a frame-shaped structure. A protective net (402) is installed on the connecting plate (404). The protective net (402) is located at the top of the through slot (406).

3. A laser scale marking device for a scale according to claim 2, characterized in that: A clamping groove (405) is respectively provided at the top edge of one end of the mounting seat (201), and a clamping block (407) is slidably connected inside the clamping groove (405), and the cross-sections of the clamping block (407) and the clamping groove (405) are both "convex" shaped structures, and the tops of the two clamping blocks (407) extend to the outside of the clamping groove (405) and are vertically connected to the bottom of the connecting plate (404), and the connecting plate (404) is slidably connected to the top of the mounting seat (201) through the cooperation of the clamping block (407) and the clamping groove (405).

4. A laser scale marking device for a scale according to claim 3, characterized in that: A handle (401) is installed at the center of the outer side of one end of the connecting plate (404), and the handle (401) is a "凵"-shaped structure.

5. A laser scale marking device for a scale according to claim 1, characterized in that: The protection mechanism (5) comprises a protection plate (501), two protection plates (501) are vertically connected to the edge of one side of the top of the mounting seat (201), the two protection plates (501) are located outside the three-jaw chuck (203), and one end of the two protection plates (501) is slidably connected to the inside of the mounting seat (201) through a movable groove (502).

6. The laser marking device for scale according to claim 5, characterized in that: A plurality of abutment springs (504) are connected between one end of the two protective plates (501) and the inside of the mounting seat (201), and bolts (503) are respectively threadedly connected at the center of both sides of the mounting seat (201), and the bolts (503) extend to the inside of the mounting seat (201) and abut against the side walls of the protective plates (501).

7. A laser scale marking device according to claim 3, characterized in that: The adjusting mechanism (3) includes a mounting plate (301), the mounting plate (301) is detachably connected to the marking machine (1), two parallel guide rails (302) are fixedly connected to the top edge of the mounting plate (301), two guide grooves (304) are provided at the bottom edge of the mounting seat (201), the cross sections of the guide grooves (304) and the guide rails (302) are both "T"-shaped structures, the bottom of the mounting seat (201) is slidably connected to the top of the mounting plate (301) through the guide grooves (304) and the guide rails (302), side plates (303) are respectively installed at both ends of the mounting plate (301), and the side plates (303) are in contact with the guide rails (302).

8. A laser scale marking device according to claim 3, characterized in that: The locking mechanism (6) includes a limiting plate (601), the limiting plates (601) are respectively installed at the midlines of the two sides inside the mounting seat (201), the limiting plate (601) is of a "convex"-shaped structure, the limiting plate (601) is slidably connected to the inside of the mounting seat (201) through a connecting spring (602), the top of the limiting plate (601) is of a semicircular structure, the top of the limiting plate (601) extends into the clamping groove (405) and is in contact with the clamping block (407), the bottom of the limiting plate (601) extends into the guide groove (304) and is in contact with the top of the guide rail (302), and both the bottom of the limiting plate (601) and the top of the guide rail (302) are of tooth-shaped structures.

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