A laser engraving tool with automatic positioning function

Abstract

The present application discloses a laser engraving tool with automatic positioning function, which belongs to the field of laser engraving processing technology, is used to improve the efficiency of laser engraving processing and reduce the cost of tooling, and can reduce labor costs, and includes a base part, a workbench, two groups of elastic cam parts and a pushing assembly. The present invention, by designing a rotatable support bracket, the top of the support bracket is slidably installed with a sliding push plate fixing part, one side of the support bracket is provided with a workbench, the support bracket can pass from the side of the workbench, the workbench is located on the first side of the support bracket and fixedly installed with two groups of elastic cam parts, the workbench is located on the first side of the support bracket and fixedly installed with a pushing assembly, when the support bracket passes the side of the workbench, the workpiece can be fixedly installed on the sliding push plate fixing part, through the design of this structure, the assembly line can be clamped, and it can be used in conjunction with a manipulator to reduce labor costs and greatly improve the processing efficiency of laser engraving.

Description

Technical Field

[0001] The present application relates to the technical field of laser engraving, and in particular to a laser engraving tool with an automatic positioning function. Background Art

[0002] Laser engraving, also known as laser engraving or laser marking, is a high-precision and controllable laser engraving technology that is widely used in the surface processing of metal products, including etching graphics, text and fine lines. When the integrated laser engraving equipment is working, the workpiece to be processed needs to be fixed on the tooling, and the movement of the laser head is controlled or the workbench drives the tooling and workpiece to move to complete the corresponding processing.

[0003] However, the existing laser engraving tooling has the following defects: for example, a dedicated tooling needs to be designed for each workpiece, and the workpieces need to be installed one by one during laser engraving processing, which affects the processing efficiency for mass-produced products, and the cost of manually installing the workpieces is also high. For this reason, the present invention provides a laser engraving tooling with an automatic positioning function. Summary of the invention

[0004] The purpose of the present application is to provide a laser engraving tool with an automatic positioning function to solve the problems of multiple laser engraving equipment tools, high costs and low processing efficiency.

[0005] In order to achieve the above objectives, the technical solution adopted in this application is:

[0006] A laser engraving tool with automatic positioning function, comprising:

[0007] A base portion, the base portion having a support bracket that can be moved in an annular shape, a sliding push plate fixing member being slidably mounted on the top of the support bracket;

[0008] A workbench, the workbench is fixedly mounted to the base portion, and the support bracket can pass through the side of the workbench;

[0009] The workbench is located on the first side of the supporting bracket and is fixedly mounted with two groups of elastic cam members, and the workbench is located on the first side of the supporting bracket and is fixedly mounted with a pushing assembly.

[0010] As a preference, the base portion comprises:

[0011] A base, wherein the base is in an "L" shape;

[0012] An annular guide, the annular guide is fixedly mounted on the inner side of the base, the support bracket is slidably connected to the annular guide, and the support bracket has a plurality of them;

[0013] An endless belt assembly is used to drive a plurality of supporting brackets to move synchronously.

[0014] As a preferred embodiment, the base comprises: a bottom plate, a side surface of the bottom plate is fixedly connected to a vertical plate, and a side surface of the vertical plate is fixedly provided with a support frame;

[0015] The annular guide member comprises: a position guide portion and an angle guide portion, both of which are arranged in an annular shape, and the angle guide portion is fixedly mounted on the upper side of the position guide portion, and the position guide portion is fixedly connected to the support plate frame;

[0016] The support bracket comprises: an upper arc seat and a lower arc seat, the upper arc seat is located above the position guiding part, and the upper arc seat has a sliding opening that cooperates with the angle guiding part, the top of the upper arc seat is fixedly connected to the upper support rod, the top of the upper support rod is fixedly installed with a square seat, the square seat is slidably connected to the bottom of the sliding push plate fixing piece, the lower arc seat is located below the position guiding part, the side of the lower arc seat located inside the position guiding part is a long arc angle, the side of the upper arc seat located inside the position guiding part is provided with an arc opening, the long arc angle slides inside the arc opening, the side of the lower arc seat located outside the position guiding part is a short arc angle, and a gap is set between the short arc angle and the bottom end of the upper arc seat, the bottom of the lower arc seat is fixedly installed with a lower support rod, and the lower support rod is fixedly connected to the flexible ring of the annular belt assembly by fastening nails.

[0017] Preferably, the annular belt assembly further comprises: a first rubber disc and a second rubber disc, both of which are mounted on a bottom plate, and at least one of the first rubber disc and the second rubber disc is an active component, and a flexible ring is mounted between the first rubber disc and the second rubber disc.

[0018] Preferably, the workbench comprises: a frame body, the frame body is fixedly connected to the base part, and a plate frame is fixedly connected to the top of the frame body, and a guide is fixedly installed on the bottom of the plate frame.

[0019] Preferably, the plate rack comprises: a first plate body and a second plate body, wherein a gap is provided between the first plate body and the second plate body, the support bracket passes through the gap between the first plate body and the second plate body, and two groups of guides are provided, and a gap is also provided between the two groups of guides.

[0020] Preferably, the pushing assembly comprises: a horizontal frame, the horizontal frame is fixedly connected to the frame body, a vertical frame is fixedly installed on the top of the horizontal frame, and a telescopic pushing frame is fixedly installed on the side of the vertical frame.

[0021] As a preferred embodiment, the elastic cam member comprises:

[0022] A polygonal vertical rod, the bottom end of which is fixedly connected to the top of the plate frame, and the polygonal vertical rod is sequentially sleeved with a first gasket, a first elastic cam structure, a second gasket, a second elastic cam structure, and a pressure head from bottom to top, and the pressure head is fixedly connected to the polygonal vertical rod;

[0023] The first elastic cam structure comprises: a disc body, a shaft sleeve is fixedly connected to the top of the disc body, an arc groove is opened at the top of the disc body and located outside the shaft sleeve, a folding plate spring is arranged inside the arc groove, a cam body is rotatably mounted on the shaft sleeve, and a pin is fixedly connected to the bottom end of the cam body and located inside the arc groove;

[0024] The second elastic cam structure has the same structure as the first elastic cam structure.

[0025] Preferably, the pressure head includes a fastening sleeve, a nut head is threadedly mounted on the fastening sleeve, and a wedge-shaped mating surface is arranged between the nut head and the fastening sleeve. When the nut head is tightened, the wedge-shaped surface on the inner side of the nut head squeezes the wedge-shaped surface on the outer side of the fastening sleeve, causing the fastening sleeve to deform inward and squeeze the polygonal vertical rod.

[0026] As a preference, the sliding push plate fixing member is a magnetic member or a suction cup member.

[0027] Compared with the prior art, the beneficial effects of this application are:

[0028] (1) The present invention is designed with a rotatable (circularly movable) support bracket, a sliding push plate fixing part is slidably installed on the top of the support bracket, a workbench is arranged on one side of the support bracket, the support bracket can pass through the side of the workbench, two groups of elastic cam parts are fixedly installed on the first side of the support bracket, and a pushing assembly is fixedly installed on the first side of the support bracket. When the support bracket passes through the side of the workbench, the workpiece can be fixedly installed on the sliding push plate fixing part, and then the pushing assembly pushes the sliding push plate fixing part to slide in the direction of the two groups of elastic cam parts, so that the workpiece is tightly against the two groups of elastic cam parts, forming a stable clamping and fixing. Since the two groups of elastic cam parts can rotate elastically, they have an adaptive positioning function to ensure accurate positioning of the workpiece. Through the design of this structure, the workpiece can be clamped on the assembly line, and can be used in conjunction with a robot, thereby reducing labor costs and greatly improving the processing efficiency of laser engraving.

[0029] (2) The present invention, by designing an annular guide member composed of an annular position guide portion and an angle guide portion, can perform trajectory guidance and angle guidance on the movement of the support bracket. For example, when the support bracket is in a non-marking position (the area above the workbench is the marking position), the angle guide portion can be used to guide the support bracket to tilt, which is convenient for the subsequent design of an automatic material picking link. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a three-dimensional view of the laser engraving tooling with automatic positioning function.

[0031] Figure 2 This is a front view of the laser engraving tooling with automatic positioning function.

[0032] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0033] Figure 4 This is a top view of the laser engraving tooling with automatic positioning function.

[0034] Figure 5 This is a side view of the laser engraving tooling with automatic positioning function.

[0035] Figure 6 This is a three-dimensional view of the base portion of the laser engraving tool with automatic positioning function.

[0036] Figure 7 For Figure 6 A partial enlarged view of point B in the middle.

[0037] Figure 8 The figure is a three-dimensional view of the base portion of the laser engraving tool with automatic positioning function.

[0038] Fig. 9 This is a three-dimensional view of the annular guide of the laser engraving tooling with automatic positioning function.

[0039] Fig.10 This is a front view of the elastic cam component of the laser engraving tooling with automatic positioning function.

[0040] Fig.11 for Fig.10 Section view of the section line at CC.

[0041] Fig.12 This is an exploded view of the first elastic cam structure of the laser engraving tooling with automatic positioning function.

[0042] Fig.13 This is a three-dimensional view of the cam body of the laser engraving tooling with automatic positioning function.

[0043] In the figure: 1, base; 101, bottom plate; 102, vertical plate; 103, support plate frame; 2, annular guide; 201, position guide; 202, angle guide; 3, annular belt assembly; 301, first rubber disc; 302, second rubber disc; 303, flexible ring; 4, support bracket; 401, upper arc seat; 401a, sliding opening; 401b, arc opening; 402, upper support rod; 403, square seat; 404, lower arc seat; 405, lower support rod; 406, fastening nail; 5, sliding push plate fixing member; 6, workbench; 601, frame; 602, plate frame; 602a, first plate body; 602b, second plate body; 603, guide member; 7, pushing assembly; 701, horizontal frame; 702, vertical frame; 703, telescopic pushing frame; 8, elastic cam member; 801, polygonal vertical rod; 802, first gasket; 803, first elastic cam structure; 803a, disk body; 803b, shaft sleeve; 803c, arc groove; 803d, folding plate spring; 803e, cam body; 803f, pin shaft; 804, second gasket; 805, second elastic cam structure; 806, pressure head; 806a, fastening sleeve; 806b, nut head. DETAILED DESCRIPTION

[0044] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0045] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific scope of protection of the present application.

[0046] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0047] The terms "including" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0048] like Figure 1-Figure 13 The laser engraving tool with automatic positioning function shown in the figure comprises: a base part, a workbench 6 , two groups of elastic cam parts 8 and a pushing component 7 .

[0049] The base part has a support bracket 4 which can move in a ring shape. Multiple support brackets 4 can be provided. Multiple support brackets 4 can move synchronously along a ring track. A sliding push plate fixing part 5 is slidably installed on the top of the support bracket 4. The sliding push plate fixing part 5 can slide on the support bracket 4. The sliding direction of the sliding push plate fixing part 5 on the support bracket 4 can be designed to be perpendicular to the moving track line of the support bracket 4. The workbench 6 is fixedly installed with the base part, and the support bracket 4 can pass from the side of the workbench 6. The workbench 6 is located on the first side of the support bracket 4 and two groups of elastic cam parts 8 are fixedly installed. The workbench 6 is located on the first side of the support bracket 4 and a pushing component 7 is fixedly installed. That is, when the support bracket 4 can pass from the side of the workbench 6, this support bracket 4 is located between the two groups of elastic cam parts 8 and the pushing component 7.

[0050] When in use, it can be used in conjunction with an automatic loading robot, which fixes the workpiece on the sliding push plate fixing member 5 at a non-marking position (the area above the workbench is the marking position). The sliding push plate fixing member 5 can select a magnetic member (electromagnetic) or a suction cup member. The magnetic member (electromagnetic) can be used for metal workpieces, and the suction cup member can be used for lightweight non-metallic workpieces. As the driving support bracket 4 moves, the sliding push plate fixing member 5 and the workpiece also move with it, and the workpiece enters the marking position (the area above the workbench is the marking position), and the control push component 7 pushes the sliding push plate fixing member 5 toward the direction of the two sets of elastic cam members 8. The workpiece moves, and the workpiece squeezes the two sets of elastic cam members 8. The protruding parts of the two sets of elastic cam members 8 are stressed, so that the second elastic cam structure 805 and the first elastic cam structure 803 of the elastic cam member 8 rotate elastically, thereby guiding the workpiece to the middle of the two sets of elastic cam members 8 (in fact, it drives the support bracket 4, the sliding push plate fixing member 5 and the workpiece to produce horizontal movement), realizing precise positioning, and the elastic squeezing of the two sets of elastic cam members 8 makes the workpiece more stable. Through the design of this structure, the workpiece can be clamped on the assembly line, which can be used in conjunction with a robot to reduce labor costs and greatly improve the processing efficiency of laser engraving.

[0051] In one embodiment, the base portion includes: a base 1 , an annular guide 2 , and an annular belt assembly 3 .

[0052] The base 1 is in an "L" shape, and the annular guide 2 is fixedly installed on the inner side of the base 1, that is, the annular guide 2 is located above the bottom plate 101 of the base 1, and the annular guide 2 is located on the side of the vertical plate 102 of the base 1, and the support bracket 4 is slidably connected to the annular guide 2. There are several support brackets 4, and several support brackets 4 slide synchronously. The annular belt assembly 3 is used to drive several support brackets 4 to move synchronously (move along the guide track of the annular guide 2).

[0053] In one embodiment, the base 1 includes: a bottom plate 101 , a side surface of the bottom plate 101 is fixedly connected to a vertical plate 102 , a side surface of the vertical plate 102 is fixedly provided with a support frame 103 , and the support frame 103 is used to fix the annular guide member 2 .

[0054] The annular guide 2 includes: a position guide portion 201 and an angle guide portion 202 . Both the position guide portion 201 and the angle guide portion 202 are arranged in an annular shape, and the angle guide portion 202 is fixedly installed on the upper side of the position guide portion 201 . The position guide portion 201 is fixedly connected to the support frame 103 .

[0055] The support bracket 4 includes: an upper arc seat 401 and a lower arc seat 404. The upper arc seat 401 is located above the position guide portion 201, and the upper arc seat 401 has a sliding opening 401a that cooperates with the angle guide portion 202. The upper arc seat 401 cooperates with the position guide portion 201 to enable the support bracket 4 to move along the trajectory of the position guide portion 201. The sliding opening 401a cooperates with the angle guide portion 202 to enable the upper arc seat 401 to be angularly deflected when it moves along the trajectory of the position guide portion 201. For example, Fig. 9As shown in , the position guide part 201 and the angle guide part 202 are both set as a groove structure (two straight sections and two arc sections), and the two straight sections of the groove structure are set as loading (installing workpieces) and unloading (disassembling workpieces) workstations. At this time, the two straight sections of the angle guide part 202 located in the groove structure can be set to be vertical and inclined respectively, and the two arc sections of the groove structure serve as transition positions of the angle guide part 202. The top of the upper arc seat 401 is fixedly connected with an upper support rod 402, and the top of the upper support rod 402 is fixedly installed with a square seat 403. The square seat 403 is slidably connected to the bottom of the sliding push plate fixing member 5. The sliding direction of the sliding push plate fixing member 5 and the square seat 403 is perpendicular to the contour of the groove structure. The lower arc seat 404 is located below the position guide part 201. The side of the lower arc seat 404 located inside the position guide part 201 is a long arc angle, and the side of the upper arc seat 401 located inside the position guide part 201 is provided with an arc opening 401b, and the long arc angle slides on the inner side of the arc opening 401b, so that the lower arc seat 404 can drive the upper arc seat 401, and the upper arc seat 401 can rotate relative to the lower arc seat 404, and the side of the lower arc seat 404 located outside the position guide part 201 is a short arc angle, and a gap b is set between the short arc angle and the bottom end of the upper arc seat 401, and the gap b corresponds to the support plate frame 103 to ensure that the support bracket 4 can slide normally, and a lower support rod 405 is fixedly installed at the bottom of the lower arc seat 404, and the lower support rod 405 is fixedly connected to the flexible ring 303 of the annular belt assembly 3 by a fastening nail 406.

[0056] In one embodiment, the annular belt assembly 3 includes: a first rubber disc 301 and a second rubber disc 302. The first rubber disc 301 and the second rubber disc 302 are both mounted on the bottom plate 101, and at least one of the first rubber disc 301 and the second rubber disc 302 is an active component. For example, the first rubber disc 301 is driven by a motor to actively rotate, and the second rubber disc 302 is driven. A flexible ring 303 is installed between the first rubber disc 301 and the second rubber disc 302. When the first rubber disc 301 is driven by the motor to rotate, it drives the flexible ring 303 to move, thereby causing the second rubber disc 302 to rotate as well.

[0057] In one embodiment, the workbench 6 includes: a frame 601, the frame 601 is fixedly connected to the base part, and the top of the frame 601 is fixedly connected to a plate frame 602, and the bottom of the plate frame 602 is fixedly installed with a guide member 603, and the guide member 603 is used to guide the support bracket 4 close to the frame 601.

[0058] Specifically, the plate frame 602 includes: a first plate body 602a and a second plate body 602b, there is a gap between the first plate body 602a and the second plate body 602b, the support bracket 4 passes through the gap between the first plate body 602a and the second plate body 602b, and two groups of guide members 603 are provided, and a gap is also provided between the two groups of guide members 603.

[0059] The two sets of guide members 603 guide the support bracket 4 to pass through the gap between the first plate 602 a and the second plate 602 b , and the gap between the first plate 602 a and the second plate 602 b is used to stabilize the support bracket 4 .

[0060] In one embodiment, the pushing assembly 7 includes: a horizontal frame 701, the horizontal frame 701 is fixedly connected to the frame body 601, a vertical frame 702 is fixedly installed on the top of the horizontal frame 701, and a telescopic pushing frame 703 is fixedly installed on the side of the vertical frame 702. The telescopic pushing frame 703 can use an electric push rod, which is used to push the sliding push plate fixing member 5.

[0061] In one embodiment, the elastic cam member 8 includes: a polygonal vertical rod 801, the bottom end of the polygonal vertical rod 801 is fixedly connected to the top of the plate frame 602, and the polygonal vertical rod 801 is sequentially sleeved with a first gasket 802, a first elastic cam structure 803, a second gasket 804, a second elastic cam structure 805, and a pressure head 806 from bottom to top, and the pressure head 806 is fixedly connected to the polygonal vertical rod 801.

[0062] The second elastic cam structure 805 has the same structure as the first elastic cam structure 803. The first elastic cam structure 803 is specifically described below. The first elastic cam structure 803 includes: a disk body 803a, a shaft sleeve 803b is fixedly connected to the top of the disk body 803a, an arc groove 803c is provided at the top of the disk body 803a and located on the outside of the shaft sleeve 803b, a folding plate spring 803d is provided inside the arc groove 803c, a cam body 803e is rotatably mounted on the shaft sleeve 803b, and a pin shaft 803f is fixedly connected to the bottom end of the cam body 803e and located inside the arc groove 803c.

[0063] When the workpiece squeezes the protruding position of the cam body 803e, the cam body 803e rotates, and the pin shaft 803f and the cam body 803e rotate together. At this time, the pin shaft 803f squeezes the folding plate spring 803d, that is, the cam body 803e rotates elastically. When the force is small, the cam body 803e will automatically return to its position.

[0064] In one embodiment, the pressure head 806 includes a fastening sleeve 806a, on which a nut head 806b is threadedly installed, and a wedge-shaped mating surface is provided between the nut head 806b and the fastening sleeve 806a. When the nut head 806b is tightened, the wedge-shaped surface on the inner side of the nut head 806b squeezes the wedge-shaped surface on the outer side of the fastening sleeve 806a, so that the fastening sleeve 806a deforms inward and squeezes the polygonal vertical rod 801, so that the fastening sleeve 806a is fixed to the polygonal vertical rod 801.

[0065] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A laser engraving tool with automatic positioning function, characterized in that: include: A base portion, the base portion having a support bracket that can be moved in an annular shape, a sliding push plate fixing member being slidably mounted on the top of the support bracket; A workbench, the workbench is fixedly mounted to the base portion, and the support bracket can pass through the side of the workbench; The workbench is located on the first side of the support bracket and is fixedly mounted with two sets of elastic cam members, and the workbench is located on the first side of the support bracket and is fixedly mounted with a pushing assembly; The base portion comprises: A base, wherein the base is in an "L" shape; An annular guide, the annular guide is fixedly mounted on the inner side of the base, the support bracket is slidably connected to the annular guide, and the support bracket has a plurality of them; An endless belt assembly, the endless belt assembly is used to drive a plurality of support brackets to move synchronously; The base comprises: a bottom plate, a side surface of the bottom plate is fixedly connected to a vertical plate, and a support frame is fixedly arranged on the side surface of the vertical plate; The annular guide member comprises: a position guide portion and an angle guide portion, both of which are arranged in an annular shape, and the angle guide portion is fixedly mounted on the upper side of the position guide portion, and the position guide portion is fixedly connected to the support plate frame; The support bracket comprises: an upper arc seat and a lower arc seat, the upper arc seat is located above the position guiding part, and the upper arc seat has a sliding opening that cooperates with the angle guiding part, the top of the upper arc seat is fixedly connected to the upper support rod, the top of the upper support rod is fixedly installed with a square seat, the square seat is slidably connected to the bottom of the sliding push plate fixing piece, the lower arc seat is located below the position guiding part, the side of the lower arc seat located inside the position guiding part is a long arc angle, the side of the upper arc seat located inside the position guiding part is provided with an arc opening, the long arc angle slides inside the arc opening, the side of the lower arc seat located outside the position guiding part is a short arc angle, and a gap is set between the short arc angle and the bottom end of the upper arc seat, the bottom of the lower arc seat is fixedly installed with a lower support rod, and the lower support rod is fixedly connected to the flexible ring of the annular belt assembly by a fastening nail; The workbench comprises: a frame body, the frame body is fixedly connected to the base part, and a plate frame is fixedly connected to the top of the frame body, and a guide is fixedly installed on the bottom of the plate frame; The plate rack comprises: a first plate body and a second plate body, a gap is provided between the first plate body and the second plate body, the support bracket passes through the gap between the first plate body and the second plate body, and the guide members are provided in two groups, and a gap is also provided between the two groups of guide members; The elastic cam member comprises: A polygonal vertical rod, the bottom end of which is fixedly connected to the top of the plate frame, and the polygonal vertical rod is sequentially sleeved with a first gasket, a first elastic cam structure, a second gasket, a second elastic cam structure, and a pressure head from bottom to top, and the pressure head is fixedly connected to the polygonal vertical rod; The first elastic cam structure comprises: a disc body, a shaft sleeve is fixedly connected to the top of the disc body, an arc groove is opened at the top of the disc body and located outside the shaft sleeve, a folding plate spring is arranged inside the arc groove, a cam body is rotatably mounted on the shaft sleeve, and a pin is fixedly connected to the bottom end of the cam body and located inside the arc groove; The second elastic cam structure has the same structure as the first elastic cam structure.

2. The laser engraving tool with automatic positioning function as claimed in claim 1, characterized in that: The annular belt assembly further includes: a first rubber disc and a second rubber disc, both of which are mounted on the bottom plate, and at least one of the first rubber disc and the second rubber disc is an active component, and a flexible ring is mounted between the first rubber disc and the second rubber disc.

3. The laser engraving tool with automatic positioning function as claimed in claim 1, characterized in that: The pushing assembly comprises a horizontal frame, which is fixedly connected to the frame body, a vertical frame is fixedly installed on the top of the horizontal frame, and a telescopic pushing frame is fixedly installed on the side of the vertical frame.

4. The laser engraving tool with automatic positioning function as claimed in claim 1, characterized in that: The pressure head includes a tightening sleeve, a nut head is threadedly mounted on the tightening sleeve, a wedge-shaped mating surface is arranged between the nut head and the tightening sleeve, and when the nut head is tightened, the wedge-shaped surface inside the nut head squeezes the wedge-shaped surface outside the tightening sleeve, causing the tightening sleeve to deform inward and squeeze the polygonal vertical rod.

5. The laser engraving tool with automatic positioning function as claimed in claim 1, characterized in that: The sliding push plate fixing member is a magnetic member or a suction cup member.

Images