Workbench and laser processing equipment

Abstract

The utility model provides a workbench and laser processing equipment. The workbench comprises a main rack and a positioning structure. And the positioning structure is used for fixing the main frame on a base of the laser processing equipment. The positioning structure has a pre-fixing state and a complete fixing state, in the pre-fixing state, the positioning structure is connected with the main rack and the base, and the relative position of the main rack and the base is adjustable, so that the main rack can move within a certain range relative to the laser processing equipment, and the zero point of the main rack can be manually calibrated and positioned. And in the completely fixed state, the main frame is fixed on the base by the positioning structure, so that the main frame and the base cannot relatively slide, and the positioning and mounting operation of the main frame is completed, namely the zero calibration of the main frame is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of laser processing equipment, in particular to a workbench and laser processing equipment. Background Art

[0002] Laser processing equipment uses laser as a processing medium to achieve the purpose of processing. Usually before processing, the user needs to place the consumables to be processed on the laser processing equipment, and then adjust the focus so that the focus of the emitted laser acts on the surface of the consumables.

[0003] In the prior art, since the processing range of laser processing equipment is limited and larger consumables cannot be processed, a workbench is set up to expand the processing range of the laser processing equipment. The workbench has precision requirements when installed, so a workbench that is easy to position and install needs to be designed. Utility Model Content

[0004] The utility model aims to provide a workbench and laser processing equipment, wherein before the workbench and the laser processing equipment are completely fixed, the position of the workbench can be adjusted by moving the workbench within a small range.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] According to one aspect of the present application, the present application provides a workbench, which is applied to laser processing equipment, and the workbench includes a main frame and a positioning structure, and the positioning structure is used to fix the main frame on the base of the laser processing equipment;

[0007] The positioning structure has a pre-fixed state and a fully fixed state. In the pre-fixed state, the positioning structure connects the main frame and the base and makes the relative position of the two adjustable; in the fully fixed state, the positioning structure fixes the main frame on the base.

[0008] In some embodiments, the main frame is provided with a perforation;

[0009] The positioning structure includes a base and a fixing member, wherein the base is arranged on the main frame, and a through hole for passing the fixing member is formed inside the base;

[0010] The fixing member comprises a main body and a limiting body arranged at one end of the main body, the main body is used to be sequentially inserted into the through hole and the through hole, and the end of the main body away from the limiting body can protrude out of the through hole and be fixedly connected to the base;

[0011] The inner diameter of the through hole and the inner diameter of the through hole are both larger than the outer diameter of the main body, and the inner diameter of the through hole is at least partially smaller than the outer diameter of the limiting body.

[0012] In some embodiments, the main frame includes a first plate body and a second plate body spaced apart from each other, the through hole includes a first hole provided on the first plate body and a second hole provided on the second plate body, and the inner diameters of the first hole and the second hole are both larger than the outer diameter of the limiter;

[0013] The workbench further includes a limiting plate, which is movably disposed between the first plate body and the second plate body. The perforations further include connecting holes disposed on the limiting plate, and the inner diameter of the connecting holes is smaller than the outer diameter of the limiting body.

[0014] In some embodiments, the main frame includes a first plate body and a second plate body spaced apart in an upper and lower manner, the through hole includes a first hole provided on the first plate body and a second hole provided on the second plate body, the inner diameter of the first hole is larger than the outer diameter of the limiting body, and the inner diameter of the second hole is smaller than the outer diameter of the limiting body and larger than the outer diameter of the main body.

[0015] In some embodiments, the positioning structure includes a centering piece, the centering piece is limitedly disposed in the through hole and sleeved on the outer periphery of the fixing piece, and the axis of the centering piece is coaxial with the through hole;

[0016] The centering piece has a minimum inner diameter that matches the outer diameter of the main body of the fixing piece, and the centering piece is used to lock the axis extension direction of the fixing piece so that the fixing piece can remain coaxial with the through hole.

[0017] In some embodiments, the through hole is divided into a groove body portion and a hole body portion along the upper and lower sides, the inner diameter of the groove body portion is larger than the inner diameter of the hole body portion, and an annular groove surface can be formed between the groove body portion and the hole body portion;

[0018] The centering piece is arranged on the groove body and one end thereof abuts against the annular groove surface. The end of the centering piece abutting against the annular groove surface has a maximum outer diameter matching the inner diameter of the groove body, so that the end of the centering piece abutting against the annular groove surface can abut against the inner circumferential wall of the groove body.

[0019] In some embodiments, the centering member includes a first centering portion and a first supporting portion and a second supporting portion arranged at opposite ends thereof, the end of the first supporting portion away from the first centering portion abuts against the annular groove surface, and the maximum outer diameter of the second supporting portion is smaller than the inner diameter of the through hole;

[0020] The inner diameter of the first centering portion is matched with the outer diameter of the main body of the fixing member, and is used to lock the axis extension direction of the fixing member so that the fixing member can remain coaxial with the through hole.

[0021] In some embodiments, the inner diameter of the first supporting portion and the inner diameter of the second supporting portion both gradually decrease from an end portion away from the first centering portion toward the first centering portion.

[0022] In some embodiments, the centering member further includes a positioning portion, the positioning portion is connected to an end of the second supporting portion away from the centering portion, and the inner diameter of the positioning portion is matched with the outer diameter of the fixing member.

[0023] In some embodiments, the centering member is divided into a second centering portion and a third support portion connected to one end of the second centering portion along its axial direction, and an end of the third support portion away from the second centering portion abuts against the annular groove surface;

[0024] The inner diameter of the second centering portion is adapted to the outer diameter of the main body of the fixing member, and is used to lock the extension direction of the axis of the fixing member so that the fixing member can remain coaxial with the through hole;

[0025] An inner diameter of the third supporting portion gradually decreases from an end away from the second centering portion toward the second centering portion.

[0026] In some embodiments, the centering member is an elastic member.

[0027] In some embodiments, a recessed portion with an opening facing downward is formed at the bottom of the base, the recessed portion is used to accommodate the base of the laser processing device, and there is a gap between the inner peripheral wall of the recessed portion and the outer peripheral wall of the base of the laser processing device;

[0028] And / or, a card slot opening downward is formed at the bottom of the main frame, and the card slot is communicated with the through hole, and the card slot is used to clamp the base.

[0029] According to another aspect of the present application, the present application further provides a laser processing device, comprising a base and a workbench as described in any one of the above items, wherein the workbench is fixedly mounted on the base via the positioning structure.

[0030] It can be seen from the above technical solution that the utility model has at least the following advantages and positive effects:

[0031] In the utility model, the workbench includes a main frame and a positioning structure. The positioning structure is used to fix the main frame on the base of the laser processing equipment. The positioning structure has a pre-fixed state and a fully fixed state. In the pre-fixed state, the positioning structure can connect the main frame and the base, and make the relative position of the two adjustable, so that the main frame can move within a certain range relative to the laser processing equipment, so that the zero point of the main frame can be manually calibrated and positioned. In addition, in the fully fixed state, the positioning structure fixes the main frame on the base, so that the main frame and the base cannot slide relative to each other, so as to complete the positioning and installation operation of the main frame, that is, complete the zero point calibration of the main frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a three-dimensional structural exploded view of the workbench in this embodiment.

[0033] Figure 2 It is a cross-sectional structural diagram of the workbench in this embodiment.

[0034] Figure 3 yes Figure 2 Schematic diagram of the exploded structure of the workbench.

[0035] Figure 4 yes Figure 3 Enlarged schematic diagram at point A in the middle.

[0036] Figure 5 yes Figure 3 Enlarged schematic diagram of point B in the middle.

[0037] Figure 6 yes Figure 2 Enlarged schematic diagram at point C in the middle.

[0038] Figure 7 Schematic diagram of the structure of the centering member in this embodiment.

[0039] Figure 8 Schematic diagram of the structure of the centering member in other embodiments.

[0040] The following are the descriptions of the reference numerals:

[0041] 1. Main frame; 11. Perforation; 111. First hole; 112. Second hole; 113. Connecting hole; 12. First plate; 13. Second plate; 14. Card slot;

[0042] 21. Base; 211. Through hole; 2111. Groove body; 2112. Hole body; 212. Shell; 213. Protrusion; 214. Recess; 22. Fixing member; 221. Main body; 222. Positioning member; 23. Positioning plate; 24. Aligning member; 241. First alignment portion; 242. First support portion; 243. Second support portion; 244. Positioning portion; 245. Second alignment portion; 246. Third support portion. DETAILED DESCRIPTION

[0043] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially for illustrative purposes rather than for limiting the present invention.

[0044] In the description of the present application, it should be understood that in the embodiments shown in the drawings, the indications of directions or positional relationships (such as up, down, left, right, front and back, etc.) are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, the indications of these directions also change accordingly.

[0045] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0046] At present, due to the limited processing width of laser processing equipment, it is impossible to process consumables with larger widths, so a workbench is set up to expand the processing width of the laser processing equipment. Among them, when the laser processing equipment and the workbench are connected, the host computer (computer or mobile device) can obtain the processing width of the workbench through the laser processing equipment, and the processing width should correspond to the canvas displayed on the host computer. That is, the workbench has precision requirements during installation, so it is necessary to locate the zero point position of the workbench so that the processing width of the workbench corresponds to the canvas displayed by the host computer, so as to avoid the preset pattern from being processed onto the consumables due to mismatch.

[0047] Therefore, the present application provides a workbench and laser processing equipment to solve the above problems.

[0048] In the present application, the laser processing equipment includes a base and a workbench, wherein the workbench is fixedly mounted on the base.

[0049] The specific embodiments of the workbench of the present application are described in detail below in conjunction with the accompanying drawings.

[0050] Figure 1 This is a three-dimensional structural exploded view of the workbench in this embodiment. Figure 2 is a cross-sectional structural diagram of the workbench in this embodiment, Figure 3 for Figure 2 Schematic diagram of the exploded structure of the workbench.

[0051] refer to Figure 1 to Figure 3 In this embodiment, the workbench includes a main frame 1 and a positioning structure.

[0052] The top surface of the main frame 1 constitutes the processing surface mentioned above, which is used to support consumables.

[0053] Figure 4 for Figure 2 Enlarged schematic diagram at point A in the middle.

[0054] refer to Figure 1 to Figure 4 The main frame 1 includes a first plate body 12 and a second plate body 13 which are spaced apart from each other.

[0055] The main frame 1 also includes two side plates, two end plates and a bottom plate spaced below the second plate body 13. The two side plates and the two end plates are connected end to end in sequence, and the first plate body 12, the second plate body 13 and the bottom plate are vertically spaced and connected between the two side plates and the two end plates.

[0056] The main frame 1 is provided with through holes 11. Specifically, the through holes 11 include a first hole 111 provided on the first plate body 12 and a second hole 112 provided on the second plate body 13.

[0057] A card slot 14 opening downward is formed at the bottom of the main frame 1, and the card slot 14 communicates with the through hole 11. Exemplarily, a card interface is provided on the bottom plate, and a plate body is connected to two opposite side walls of the card interface respectively, and the two plates and the two side plates enclose the card slot 14, and the card slot 14 communicates with the card interface.

[0058] refer to Figure 1 to Figure 3 , the positioning structure is used to fix the main frame 1 on the base of the laser processing equipment. Among them, the positioning structure has a pre-fixed state and a fully fixed state. In the pre-fixed state, the positioning structure connects the main frame 1 and the base, and makes the relative position of the two adjustable, so that the main frame 1 can move within a certain range relative to the laser processing equipment, so that the zero point of the main frame 1 can be manually calibrated and positioned. In the fully fixed state, the positioning structure fixes the main frame 1 on the base, so that the main frame 1 and the base cannot slide relative to each other, so as to complete the positioning and installation operation of the main frame 1, that is, complete the zero point calibration of the main frame 1, so that the processing area of ​​the workbench corresponds to the canvas displayed by the host computer, so as to avoid the preset pattern from being processed on the consumables due to mismatch.

[0059] The positioning structure includes a base 21 and a fixing member 22 .

[0060] The base 21 is disposed on the main frame 1 . Specifically, the base 21 is disposed in the card slot 14 , and the card slot 14 is used for carding the base 21 .

[0061] A through hole 211 is formed inside the base 21 for the fixing member 22 to pass through.

[0062] Figure 5 for Figure 3 Enlarged structural diagram at B in the middle.

[0063] refer to Figure 5 In this embodiment, the through hole 211 is divided into a groove body portion 2111 and a hole body portion 2112 along the upper and lower sides. Specifically, the base 21 includes a shell 212 and a protruding body 213 protruding from the top of the shell 212. The shell 212 is provided with the hole body portion 2112. The protruding body 213 is cylindrical, and its opposite ends are connected to form the groove body portion 2111.

[0064] In this embodiment, the inner diameter of the groove portion 2111 is greater than the inner diameter of the hole portion 2112 , and an annular groove surface is formed between the groove portion 2111 and the hole portion 2112 .

[0065] refer to Figure 1 to Figure 3 A recessed portion 214 with an opening facing downward is formed at the bottom of the base 21. The recessed portion 214 is used to accommodate the base of the laser processing equipment. This arrangement facilitates the initial positioning of the workbench when it is installed on the base.

[0066] In addition, there is a gap between the inner wall of the recessed portion 214 and the outer wall of the base of the laser processing equipment, so that the base 21 and the main frame 1 can be adjusted within a certain range relative to the base to facilitate manual calibration and positioning of the zero point of the main frame 1.

[0067] Figure 6 for Figure 2 Enlarged structural diagram at point C in the middle.

[0068] refer to Figure 1 to Figure 3 , Figure 6 The fixing member 22 includes a main body 221 and a limiting body 222 disposed at one end of the main body 221 .

[0069] The main body 221 is used to be sequentially inserted into the through hole 11 and the through hole 211, and the end of the main body 221 away from the limiting body 222 can protrude out of the through hole 211 and be fixedly connected to the base. Specifically, the outer periphery of the main body 221 is provided with an external thread, the base is provided with a threaded hole, and the inner peripheral wall of the threaded hole is provided with an internal thread matching the external thread, so that the main body 221 and the threaded hole can be screwed.

[0070] In this embodiment, the inner diameter of the through hole 211 and the inner diameter of the through hole 11 are both larger than the outer diameter of the main body 221. When the workbench is in a pre-fixed state, the end of the main body 221 away from the limiting body 222 is fixed to the base. The above design allows the main body 221 to move radially in the through hole 11 and the through hole 211, so that the relative position of the main frame 1 and the base is adjustable, and it is convenient for the main frame 1 to move within a certain range relative to the laser processing equipment, so that the zero point of the main frame 1 can be manually calibrated and positioned.

[0071] The outer diameter of the limiting body 222 is greater than the outer diameter of the rod body.

[0072] The inner diameter of the through hole 11 is at least partially smaller than the outer diameter of the limiting body 222. When the positioning structure is in a completely fixed state, the above design enables the limiting body 222 to abut against one side end surface of the through hole 11, thereby pressing and fixing the main frame 1 relative to the base.

[0073] In this embodiment, the inner diameters of the first hole 111 and the second hole 112 are both larger than the outer diameter of the limiting body 222. Optionally, the workbench further includes a limiting plate 23, which is movably disposed between the first plate body 12 and the second plate body 13. The perforation 11 further includes a connecting hole 113 disposed on the limiting plate 23. The inner diameter of the connecting hole 113 is adapted to the outer diameter of the main body 221, and the inner diameter of the connecting hole 113 is smaller than the outer diameter of the limiting body 222. When the positioning structure is in a completely fixed state, the limiting body 222 drives the limiting plate 23 to abut against the upper end surface of the second plate body 13, so that the main frame 1 can be pressed and fixed relative to the base.

[0074] Preferably, the peripheral side wall of the connection hole 113 is provided with an internal thread matching the external thread on the main body 221 , so that the main body 221 and the connection hole 113 can be screwed together to ensure that the fixing member 22 does not fall out of the through hole 211 .

[0075] In other embodiments, the inner diameter of the first hole 111 is larger than the outer diameter of the stopper 222, and the inner diameter of the second hole 112 is smaller than the outer diameter of the stopper 222 and larger than the outer diameter of the main body 221. When the positioning structure is in a completely fixed state, the stopper 222 abuts against the upper end surface of the second plate 13, so that the main frame 1 can be pressed and fixed relative to the base.

[0076] In this embodiment, there are multiple fixing members 22, and there is one limiting plate 23, and the multiple fixing members 22 are respectively disposed through the limiting plates 23. In other embodiments, the limiting plates 23 can also be disposed one by one with the fixing members 22.

[0077] refer to Figure 1 to Figure 3 and Figure 6 Optionally, the positioning structure includes a centering piece 24 .

[0078] The centering member 24 is limitedly disposed in the through hole 211 and sleeved on the outer periphery of the fixing member 22 . The axis of the centering member 24 is coaxial with the through hole 211 .

[0079] Specifically, the centering member 24 is disposed in the groove body 2111 and one end thereof abuts against the annular groove surface, so that the centering member 24 is limited in the through hole 211 .

[0080] In this embodiment, the end of the centering piece 24 that abuts against the annular groove surface has a maximum outer diameter that matches the inner diameter of the groove body 2111, so that the end of the centering piece 24 that abuts against the annular groove surface can abut against the inner circumferential wall of the groove body 2111 to ensure that the axis of the centering piece 24 is coaxial with the through hole 211.

[0081] Furthermore, the centering piece 24 has a minimum inner diameter that matches the outer diameter of the main body 221 of the fixing piece 22, and the centering piece 24 is used to lock the extension direction of the axis of the fixing piece 22, so that the fixing piece 22 can remain coaxial with the through hole 211. The fixing piece 22 can be locked on the centering piece 24 by the minimum inner diameter of the centering piece 24, and since the centering piece 24 is coaxial with the through hole 211, the fixing piece 22 can always remain coaxial with the through hole 211, thereby keeping the fixing piece 22 in a vertical state. When the fixing piece 22 is aligned with the threaded hole on the base of the laser processing equipment, the situation that the fixing piece 22 cannot be aligned with the hole due to tilting can be avoided.

[0082] In this embodiment, the centering piece 24 is an elastic piece and has elasticity. The fixing piece 22 can move within a certain range under the elastic deformation of the centering piece 24. At the same time, before the positioning structure is in a completely fixed state, the fixing piece 22 will automatically remain coaxial with the through hole 211 under the elastic force of the centering piece 24.

[0083] In the pre-fixed state, the centering member 24 is limited in the groove body 2111 in a natural telescopic state, and one end of the centering member 24 abuts against the annular groove surface, and the other end abuts against the limit plate 23. In other embodiments, the other end of the centering member 24 can directly abut against the limit body 222.

[0084] Figure 7 Schematic diagram of the structure of the centering member 24 in this embodiment.

[0085] refer to Figure 7 In this embodiment, the centering member 24 includes a first centering portion 241 and a first supporting portion 242 and a second supporting portion 243 disposed at opposite ends thereof.

[0086] The inner diameter of the first centering portion 241 is matched with the outer diameter of the main body 221 of the fixing member 22 , and is used to lock the axis extension direction of the fixing member 22 , so that the fixing member 22 can maintain coaxiality with the through hole 211 .

[0087] The inner diameters of the first support portion 242 and the second support portion 243 are gradually reduced from one end away from the first centering portion 241 toward the first centering portion 241. That is, the centering member 24 is wide at both ends and narrow in the middle.

[0088] The end of the first support portion 242 away from the first centering portion 241 abuts against the annular groove surface, and the first support portion 242 has a maximum outer diameter matching the inner diameter of the groove body portion 2111 and can abut against the inner circumferential wall of the groove body portion 2111 .

[0089] The maximum diameter of the second support portion 243 is smaller than the inner diameter of the through hole 211. When the positioning structure is in a fixed state, this design facilitates the fixing member 22 to drive the second support portion 243 of the centering member 24 to move appropriately radially in the through hole 211 to adjust the alignment.

[0090] Optionally, the centering member 24 further includes a positioning portion 244, which is connected to one end of the second support portion 243 away from the centering portion, and the inner diameter of the positioning portion 244 is adapted to the outer diameter of the fixing member 22. Specifically, the inner diameter of the positioning portion 244 is adapted to the outer diameter of the main body 221, and it can cooperate with the first centering portion 241 to keep the fixing member 22 coaxial with the through hole 211. In addition, the top of the positioning portion 244 abuts against the limiting plate 23. In other embodiments, the top of the positioning portion 244 can directly abut against the limiting body 222.

[0091] Figure 8 Schematic diagram of the structure of the centering member 24 in other embodiments.

[0092] refer to Figure 8 In other embodiments, the centering member 24 is divided into a second centering portion 245 and a third supporting portion 246 connected to one end of the second centering portion 245 along its axial direction.

[0093] An end of the third supporting portion 246 away from the second centering portion 245 abuts against the annular groove surface.

[0094] The inner diameter of the third supporting portion 246 gradually decreases from an end away from the second centering portion 245 toward the second centering portion 245 .

[0095] The inner diameter of the second centering portion 245 matches the outer diameter of the main body 221 of the fixing member 22, and is used to lock the axis extension direction of the fixing member 22 so that the fixing member 22 can remain coaxial with the through hole 211. The top of the second centering portion 245 abuts against the limiting plate 23 or the limiting body 222.

[0096] The above workbench is installed as follows:

[0097] First, align the recessed portion 214 at the bottom of the base 21 of the positioning structure with the base of the laser processing equipment so that the base is accommodated in the recessed portion 214 to achieve the initial positioning of the entire workbench during installation. Then, by rotating the fixing member 22, the end of the main body 221 of the fixing member 22 away from the limiting body 222 protrudes downward from the through hole 211 and enters the threaded hole on the base, and is initially fixed with the threaded hole, so that the positioning structure is in a pre-fixed state. In the pre-fixed state, by moving the main frame 1 to adjust the relative position between the main frame 1 and the base, the zero point of the processing width of the main frame 1 is manually calibrated. After the zero point of the processing width of the main frame 1 corresponds to the canvas displayed by the host computer, continue to rotate the fixing member 22, so that the limiting body 222 drives the limiting plate 23 to move down to the upper end surface of the second plate body 13 against the main frame 1, and the main frame 1 is pressed and fixed relative to the base, so that the positioning structure is in a completely fixed state, that is, the installation and zero point calibration of the workbench are completed.

[0098] It can be seen from the above technical solution that the utility model has at least the following advantages and positive effects:

[0099] In the utility model, the workbench includes a main frame and a positioning structure. The positioning structure is used to fix the main frame on the base of the laser processing equipment. The positioning structure has a pre-fixed state and a fully fixed state. In the pre-fixed state, the positioning structure can connect the main frame and the base, and make the relative position of the two adjustable, so that the main frame can move within a certain range relative to the laser processing equipment, so that the zero point of the main frame can be manually calibrated and positioned. In addition, in the fully fixed state, the positioning structure fixes the main frame on the base so that the main frame and the base cannot slide relative to each other, so as to complete the positioning and installation operation of the main frame, that is, complete the zero point calibration of the main frame, so that the processing area of ​​the workbench corresponds to the canvas displayed by the host computer, so as to avoid the preset pattern being unable to be processed on the consumables due to mismatch.

[0100] Although the utility model has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the utility model can be implemented in a variety of forms without departing from the spirit or essence of the utility model, it should be understood that the above-mentioned embodiments are not limited to any of the aforementioned details, but should be widely interpreted within the spirit and scope defined by the attached claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the attached claims.

Claims

1. A workbench, applied to laser processing equipment, characterized in that: The workbench includes a main frame and a positioning structure, and the positioning structure is used to fix the main frame on the base of the laser processing equipment; The positioning structure has a pre-fixed state and a fully fixed state. In the pre-fixed state, the positioning structure connects the main frame and the base and makes the relative position of the two adjustable; in the fully fixed state, the positioning structure fixes the main frame on the base.

2. The workbench according to claim 1, characterized in that: The main frame is provided with a perforation; The positioning structure includes a base and a fixing member, wherein the base is arranged on the main frame, and a through hole for passing the fixing member is formed inside the base; The fixing member comprises a main body and a limiting body arranged at one end of the main body, the main body is used to be sequentially inserted into the through hole and the through hole, and the end of the main body away from the limiting body can protrude out of the through hole and be fixedly connected to the base; The inner diameter of the through hole and the inner diameter of the through hole are both larger than the outer diameter of the main body, and the inner diameter of the through hole is at least partially smaller than the outer diameter of the limiting body.

3. The workbench according to claim 2, characterized in that: The main frame includes a first plate body and a second plate body spaced apart from each other, the through hole includes a first hole provided on the first plate body and a second hole provided on the second plate body, and the inner diameters of the first hole and the second hole are both larger than the outer diameter of the limiter; The workbench further includes a limiting plate, which is movably disposed between the first plate body and the second plate body. The perforations further include connecting holes disposed on the limiting plate, and the inner diameter of the connecting holes is smaller than the outer diameter of the limiting body.

4. The workbench according to claim 2, characterized in that: The main frame includes a first plate body and a second plate body which are spaced apart from each other in an upper and lower direction. The through hole includes a first hole provided on the first plate body and a second hole provided on the second plate body. The inner diameter of the first hole is larger than the outer diameter of the limiting body, and the inner diameter of the second hole is smaller than the outer diameter of the limiting body and larger than the outer diameter of the main body.

5. The workbench according to claim 2, characterized in that: The positioning structure comprises a centering piece, the centering piece is limitedly arranged in the through hole and sleeved on the outer periphery of the fixing piece, and the axis of the centering piece is coaxial with the through hole; The centering piece has a minimum inner diameter that matches the outer diameter of the main body of the fixing piece, and the centering piece is used to lock the axis extension direction of the fixing piece so that the fixing piece can remain coaxial with the through hole.

6. The workbench according to claim 5, characterized in that: The through hole is divided into a groove body part and a hole body part along the upper and lower sides, the inner diameter of the groove body part is larger than the inner diameter of the hole body part, and an annular groove surface can be formed between the groove body part and the hole body part; The centering piece is arranged on the groove body and one end thereof abuts against the annular groove surface. The end of the centering piece abutting against the annular groove surface has a maximum outer diameter matching the inner diameter of the groove body, so that the end of the centering piece abutting against the annular groove surface can abut against the inner circumferential wall of the groove body.

7. The workbench according to claim 6, characterized in that: The centering member comprises a first centering portion and a first supporting portion and a second supporting portion respectively arranged at two opposite ends thereof, the end of the first supporting portion away from the first centering portion abuts against the annular groove surface, and the maximum outer diameter of the second supporting portion is smaller than the inner diameter of the through hole; The inner diameter of the first centering portion is matched with the outer diameter of the main body of the fixing member, and is used to lock the axis extension direction of the fixing member so that the fixing member can remain coaxial with the through hole.

8. The workbench according to claim 7, characterized in that: The inner diameter of the first supporting portion and the inner diameter of the second supporting portion both gradually decrease from an end portion away from the first centering portion toward the first centering portion.

9. The workbench according to claim 7, characterized in that: The centering member further includes a positioning portion, which is connected to an end of the second supporting portion away from the centering portion, and the inner diameter of the positioning portion is matched with the outer diameter of the fixing member.

10. The workbench according to claim 6, characterized in that: The centering member is divided into a second centering portion and a third supporting portion connected to one end of the second centering portion along its axial direction, and the end of the third supporting portion away from the second centering portion abuts against the annular groove surface; The inner diameter of the second centering portion is adapted to the outer diameter of the main body of the fixing member, and is used to lock the extension direction of the axis of the fixing member so that the fixing member can remain coaxial with the through hole; An inner diameter of the third supporting portion gradually decreases from an end away from the second centering portion toward the second centering portion.

11. The workbench according to claim 5, characterized in that: The centering piece is an elastic piece.

12. The workbench according to claim 2, characterized in that: A recessed portion with an opening facing downward is formed at the bottom of the base, the recessed portion is used to accommodate the base of the laser processing equipment, and there is a gap between the inner peripheral wall of the recessed portion and the outer peripheral wall of the base of the laser processing equipment; And / or, a card slot opening downward is formed at the bottom of the main frame, and the card slot is communicated with the through hole, and the card slot is used to clamp the base.

13. A laser processing device, characterized in that: It comprises a base and a workbench as described in any one of claims 1 to 12, wherein the workbench is fixedly mounted on the base through the positioning structure.

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