Working platform and laser processing equipment

Abstract

The utility model discloses a working platform and laser processing equipment, relates to the working platform technical field, wherein the working platform comprises a base and at least two sub-platforms arranged on the base, each sub-platform comprises a platform body and an adjusting mechanism, the upper surfaces of the at least two platform bodies are spliced to form a working surface; the adjusting mechanism is arranged below the platform body and connected with the base, and the adjusting mechanism can adjust the height position of the platform body relative to the base. According to the technical scheme provided by the utility model, the plane manufacturing difficulty of the working platform can be reduced.

Description

Technical Field

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

[0002] In precision engineering and manufacturing, the flatness requirements for large work platforms are extremely strict. These applications require the material used for the worktable to have excellent uniformity and high stability to ensure that the flatness of the entire working surface of the work platform meets high precision standards. However, due to the size limitations of existing processing machines, the processing of large flat surfaces has become a technical challenge, and it is difficult to find manufacturers that can undertake such processing tasks. Utility Model Content

[0003] The main purpose of the utility model is to provide a working platform and laser processing equipment, aiming to reduce the difficulty of plane manufacturing of the working platform.

[0004] To achieve the above-mentioned purpose, the working platform proposed in the utility model comprises a base and at least two sub-platforms arranged on the base, wherein the sub-platforms comprise:

[0005] A platform body, wherein the upper surfaces of at least two of the platform bodies are spliced ​​together to form a working surface; and

[0006] An adjusting mechanism is disposed below the platform body and connected to the base, and the adjusting mechanism can adjust the height position of the platform body relative to the base.

[0007] In one embodiment, at least three adjusting mechanisms are provided, and at least three adjusting mechanisms are distributed at intervals on the lower surface of the platform body.

[0008] In one embodiment, the adjustment mechanism includes a mounting plate and a lower limit assembly, the mounting plate is arranged on the base, and the lower limit assembly includes an upper adjustment member movably arranged on the mounting plate, the upper end of the upper adjustment member is connected to the platform body and can limit the downward displacement of the platform body.

[0009] In one embodiment, the upward adjustment member is configured as a screw rod, and the lower limit assembly further includes a nut seat provided on the mounting plate. The upper end of the screw rod is threaded through the nut seat and is used to lift the platform body.

[0010] In one embodiment, the lower limit assembly also includes a thrust bearing arranged at the upper end of the screw rod and a bearing seat arranged at the platform body, the bearing seat is sleeved on the circumference of the thrust bearing, the upper end surface of the thrust bearing abuts against the lower surface of the platform body, and the upper surface of the screw rod is spaced apart from the lower surface of the platform body.

[0011] In one embodiment, the lower limit assembly further includes an adjusting hand wheel disposed at the lower end of the screw rod, the outer peripheral surface of the adjusting hand wheel is provided with a scale, and the mounting plate is provided with a pointer corresponding to the scale.

[0012] In one embodiment, the lower limit assembly also includes a locking unit, which includes a clamping member provided on the mounting plate, and a locking member screwed to the clamping member, wherein the locking member can adjust the aperture of the opening of the clamping member, and the portion of the screw rod passing through the opening can be clamped by the clamping member to achieve fixation of the screw rod relative to the mounting plate.

[0013] In one embodiment, the adjustment mechanism further includes an upper limit assembly, which includes a lower adjustment member movably disposed on the mounting plate, wherein the upper end of the lower adjustment member is connected to the platform body and can limit the upward displacement of the platform body.

[0014] In one embodiment, the base includes a support bracket, the mounting plate is arranged on the upper side of the support bracket, the upper limit assembly also includes a sleeve arranged on the lower surface of the mounting plate, the nut abuts against the lower end surface of the sleeve and extends beyond the lower surface of the support bracket in a downward direction.

[0015] In one embodiment, the lower adjustment member is configured as a bolt, and the upper limit assembly further includes a nut provided on the mounting plate, and the lower end of the bolt passes through the mounting plate and is threadedly connected to the nut.

[0016] In one embodiment, there is a fitting gap between two adjacent platform bodies, and the fitting gap has a value range of 0.2 mm to 1 mm.

[0017] In one embodiment, the fitting gap has a value range of 3 mm to 10 mm, and the working platform further includes a buffer gasket embedded in the fitting gap.

[0018] The utility model also provides a laser processing device, comprising the aforementioned working platform.

[0019] The technical solution of the utility model is to split the working platform into multiple platform bodies, and the platform bodies can use adjustment mechanisms to adjust the height position of their upper surfaces, so that the working platform can meet the high-precision flatness requirements and adapt to the size limitations of existing processing equipment, and the overall weight will not be very large. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0021] Figure 1 A structural schematic diagram of an embodiment of a working platform provided by the utility model;

[0022] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0023] Figure 3 for Figure 1 Schematic diagram of the structure of the neutron platform;

[0024] Figure 4 for Figure 3 Side view of the center adjustment mechanism.

[0025] Description of Figure Numbers:

[0026] 101. base; 102. sub-platform; 10. supporting bracket; 20. platform body; 21. working surface; 30. adjusting mechanism; 31. mounting plate; 311. pointer; 32. lower limit assembly; 321. upper adjustment member; 321a. mounting step; 322. nut seat; 323. thrust bearing; 323a. tightening ring; 323b. loose ring; 323c. spherical seat; 324. bearing seat; 324a. mounting hole; 325. adjusting hand wheel; 326. clamp; 327. locking member; 33. upper limit assembly; 331. lower adjustment member; 332. nut; 333. sleeve.

[0027] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0030] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0031] In precision engineering and manufacturing, the flatness requirements for work platforms with large flat surfaces are extremely strict. These applications require the materials used for the work platform to have excellent uniformity and high stability to ensure that the flatness of the entire work surface of the work platform meets high precision standards. However, due to the size limitations of existing processing machines, the processing of large flat surfaces has become a technical problem, and the resources of manufacturers who can undertake such processing tasks are limited.

[0032] On the other hand, for large planes with extremely high precision requirements, not only do we need to use extremely rigid materials, but we also often need to increase the thickness of the work platform to improve the rigidity of the large plane and reduce its deformation, so that the large plane can maintain high-precision flatness. This method will significantly increase the overall weight of the work platform, thus placing higher requirements on the support structure and mobile system of the work platform.

[0033] In view of this, the utility model proposes a working platform, which can meet the high-precision flatness requirements, adapt to the size limitations of existing processing equipment, and the overall weight is not very large.

[0034] See also Figures 1 to 4 In one embodiment of the present utility model, the working platform includes a base 101 and at least two sub-platforms 102 arranged on the base 101, and the sub-platforms 102 include:

[0035] A platform body 20, wherein the upper surfaces of at least two platform bodies 20 are spliced ​​together to form a working surface 21; and

[0036] The adjusting mechanism 30 is disposed below the platform body 20 and connected to the base 101 . The adjusting mechanism 30 can adjust the height position of the platform body 20 relative to the base 101 .

[0037] For ease of understanding, a large platform (i.e., a working platform) with a rectangular cross section of square and a side length of 1500mm is used as an example for explanation. According to the technical concept of the technical solution of the utility model, the large platform can be divided into nine small platforms (i.e., platform body 20) with a cross section of 500mm and a side length of 1500mm, so that the size and processing difficulty of each small platform will be reduced, so it can adapt to the size limit of the existing processing equipment; secondly, the small platform can maintain a good plane rigidity without increasing the thickness, so the average thickness of the large platform composed of small platforms will not increase, that is, the overall weight of the large platform will not be very large; furthermore, in the process of splicing these nine small platforms to form a large platform, the height position of the small platform can be adjusted by the adjustment mechanism 30, so that the upper surface of all small platforms (i.e., working surface 21) is basically located in the same plane, that is, the large platform meets the requirements of high-precision flatness. In addition, since the working platform adopts a modular design, maintenance and replacement are also more convenient, and it is also convenient to disassemble and move the working platform.

[0038] It can be understood that the number and size of the platform bodies 20 (ie, small platforms) are not limited to the above embodiments, and those skilled in the art may select and design them according to actual conditions, and this application does not make any specific limitations on this.

[0039] The technical solution of the utility model is to split the working platform into multiple platform bodies 20, and the platform body 20 can use the adjustment mechanism 30 to achieve fine adjustment of the height position of the upper surface, so that the working platform can meet the high-precision flatness requirements and adapt to the size limitations of existing processing equipment, and the overall weight will not be very large.

[0040] Optionally, at least three adjusting mechanisms 30 are provided, and at least three adjusting mechanisms 30 are spaced apart on the lower surface of the platform body 20. In this way, the multiple adjusting mechanisms 30 can respectively correspond to different areas of the platform body 20 for height adjustment, so that the position adjustment of the upper surface of the platform body 20 is more flexible and precise. Of course, in other embodiments, only one or two adjusting mechanisms 30 may be provided. Secondly, the adjusting mechanisms are all provided on the lower surface of the platform body 20, so that the upper surface of the platform body 20 can remain intact, that is, the working surface 21 is in a complete plane state, which is conducive to the stable placement of the workpiece on the working surface 21, and can also avoid the problem that the working surface is easy to hide dirt due to openings or grooves.

[0041] In one embodiment, there is a matching gap between two adjacent platform bodies 20, and the value range of the matching gap is 0.2mm to 1mm. In this way, on the one hand, a matching gap is reserved between two adjacent platform bodies 20, so that when each platform body 20 adjusts its own height position separately, it will not interfere with other surrounding platform bodies 20, thereby avoiding the problem of damage to the platform body 20. On the other hand, a smaller matching gap will not affect the normal function of the working platform, that is, the workpiece can be placed on the working platform normally.

[0042] In another embodiment, the value range of the fitting clearance is 3mm to 10mm, and the working platform also includes a buffer gasket embedded in the fitting clearance. In this way, it can allow the platform body 20 to be adjusted freely without hard interference with the surrounding platform bodies 20, and prevent debris from falling into the fitting clearance. Optionally, the upper surface of the buffer gasket is flush with the upper surface of the platform body 20, or the upper surface of the buffer gasket is slightly lower than the upper surface of the platform body 20. Optionally, the material of the buffer gasket is configured as rubber or silicone, etc. Of course, in other embodiments, the fitting clearance may also have other values, such as 1.5mm or 15mm, etc., and a buffer gasket may not be provided.

[0043] Furthermore, the adjustment mechanism 30 includes a mounting plate 31 and a lower limit assembly 32. The mounting plate 31 is arranged on the base 101. The lower limit assembly 32 includes an upper adjustment member 321 movably arranged on the mounting plate 31. The upper end of the upper adjustment member 321 is connected to the platform body 20 and can limit the downward displacement of the platform body 20. In this way, the structure is simple and easy to implement. The upper adjustment member 321 can not only limit the downward displacement of the platform body 20, but also promote the upward movement of the platform body 20 (i.e., adjust the platform body 20 upward). In combination with other structures, or by using the deadweight of the platform body 20, the position limitation of the platform body 20 in the up and down directions is realized.

[0044] Furthermore, the upper adjustment member 321 is configured as a screw rod, and the lower limit assembly 32 also includes a nut seat 322 provided on the mounting plate 31, and the upper end of the screw rod is threaded through the nut seat 322 and is used to lift the platform body 20. In this way, the structure is simple and easy to implement, and can meet the requirements of high-precision adjustment. Of course, in other embodiments, other structural forms can also be adopted, for example, the upper adjustment member 321 is configured as a linear motor, and the upper end of the telescopic rod of the linear motor is fixedly connected to the lower surface of the platform body 20, which can simultaneously limit the downward movement and upward movement of the platform body 20.

[0045] Please refer to Figure 3 and Figure 4 ,in, Figure 3The upper left corner bearing seat 324 is hidden to reveal the thrust bearing 323 located in the bearing seat 324. Further, the lower limit assembly 32 also includes a thrust bearing 323 provided at the upper end of the screw rod and a bearing seat 324 provided on the platform body 20. The bearing seat 324 is sleeved on the circumference of the thrust bearing 323. The upper end surface of the thrust bearing 323 abuts against the lower surface of the platform body 20. The upper surface of the screw rod and the lower surface of the platform body 20 are spaced apart.

[0046] Optionally, in this embodiment, the thrust bearing 323 is configured as a thrust ball bearing with a spherical seat 323c, and the outer circumferential surface of the upper end of the screw rod is provided with a mounting step 321a corresponding to the thrust ball bearing, the tightening ring 323a of the thrust ball bearing abuts against the mounting step 321a, and the side of the loose ring 323b away from the tightening ring 323a is provided with a spherical seat 323c, the spherical seat 323c is embedded in the mounting hole 324a of the bearing seat 324, and the upper end surface of the spherical seat 323c abuts against the lower surface of the platform body 20.

[0047] In this way, the rotation and lifting motion of the screw rod is converted into the lifting motion of the spherical seat 323c and the bearing seat 324 by the thrust bearing 323. The screw rod does not directly contact the platform body 20, but contacts the platform body 20 through the spherical seat 323c, which can avoid the spherical seat 323c providing support to the platform body 20 while rotating relative to the platform body 20, thereby avoiding the sliding wear problem of the spherical seat 323c or the top of the screw rod. Secondly, the structure of the thrust ball bearing can be folded into the mounting hole 324a of the bearing seat 324, improving its installation reliability and stability.

[0048] Optionally, the bearing seat 324 is screwed to the platform body 20, the upper end surface of the bearing seat 324 directly abuts against the lower surface of the platform body 20, and the screw moves through the mounting hole 324a of the bearing seat 324. In this way, the bearing seat 324 can reliably play its role of retracting the thrust bearing 323.

[0049] It can be understood that the bearing seat 324 is fixed to the platform body 20 by screws, so it has the ability to move relative to the screw in the axial direction of the screw, but the rotation and lifting of the screw will bring about the lifting of the spherical seat 323c, and cause the lifting of the lower surface of the platform body 20. Therefore, during the flatness adjustment process, the relative position of the bearing seat 324 and the screw in the vertical direction is basically unchanged, that is, the upper end surface of the bearing seat 324 can remain flush with the upper end surface of the spherical seat 323c. Of course, in other embodiments, the bearing seat 324 may not be fixed to the platform body 20, but the screw may be used to provide it with support force in the vertical direction.

[0050] Of course, in other embodiments, thrust bearings 323 of other structural forms and other installation methods may also be used, which are not specifically limited in this application.

[0051] Furthermore, the lower limit assembly 32 also includes an adjustment hand wheel 325 disposed at the lower end of the screw rod, the outer peripheral surface of the adjustment hand wheel 325 is provided with a scale, and the mounting plate 31 is provided with a pointer 311 corresponding to the scale. In this way, when the user manually rotates the screw rod by adjusting the hand wheel 325, it is possible to intuitively see how much the adjustment hand wheel 325 rotates, thereby improving the convenience of screw rod adjustment. Of course, in other embodiments, the adjustment mechanism 30 can also be a servo motor with a reducer, and the rotation adjustment of the screw rod is realized by the servo motor, so that there is no need to manually rotate the adjustment hand wheel 325.

[0052] Furthermore, the lower limit assembly 32 also includes a locking unit, which includes a clamp 326 provided on the mounting plate 31, and a locking member 327 screwed to the clamp 326. The locking member 327 can adjust the aperture of the opening of the clamp 326, and the portion of the screw rod passing through the opening can be clamped by the clamp 326 to achieve the fixation of the screw rod relative to the mounting plate 31. Specifically, when it is necessary to rotate the adjustment hand wheel 325, the opening of the clamp 326 is loosened so that the portion of the screw rod in the opening can rotate freely; when it is necessary to fix the screw rod relative to the mounting plate 31, the locking member 327 is tightened to reduce the aperture of the opening, so that the clamp 326 locks the screw rod. In this way, the structure is simple and easy to implement. Of course, in other embodiments, other structures may be used to achieve the movement or fixation of the screw relative to the mounting plate 31, such as using a set screw that passes through the mounting plate 31 and abuts against the thread of the screw to achieve relative fixation of the screw. This application does not make specific limitations on this.

[0053] Optionally, a handle is provided at one end of the locking member 327 away from the clamp member 326 to facilitate user operation. Of course, in other embodiments, the handle may not be provided.

[0054] Furthermore, the adjustment mechanism 30 also includes an upper limit assembly 33, and the upper limit assembly 33 includes a lower adjustment member 331 movably arranged on the mounting plate 31, and the upper end of the lower adjustment member 331 is connected to the platform body 20, and can limit the upward displacement of the platform body 20. In this way, the lower adjustment member 331 can not only limit the upward displacement of the platform body 20, but also prompt the platform body 20 to move downward (i.e., adjust the platform body 20 downward), and in combination with the upper adjustment member 321, the position limitation of the platform body 20 in the vertical direction is achieved. Of course, in other embodiments, the upper limit assembly 33 may not be provided, and the deadweight of the platform body 20 is used to enable the platform body 20 to maintain the abutment relationship with the upper end of the screw rod.

[0055] Furthermore, the lower adjustment member 331 is configured as a bolt, and the upper limit assembly 33 also includes a nut 332 provided on the mounting plate 31, and the lower end of the bolt passes through the mounting plate 31 and is threadedly connected to the nut 332. In this way, the structure is simple and easy to implement. Of course, in other embodiments, other structures can also be used to achieve the downward displacement of the platform body 20, such as adding another screw rod, which is threadedly connected to the mounting plate 31 and the upper end is fixed to the lower surface of the platform body 20, and this application does not make specific limitations on this.

[0056] Optionally, each mounting plate 31 is provided with an upper limit assembly 33 at opposite ends in the length direction, that is, two upper limit assemblies 33 are provided on opposite sides of the screw rod. In this way, the adjustment accuracy and flexibility of the upper limit assembly 33 can be improved. Of course, the number of upper limit assemblies 33 provided corresponding to each mounting plate 31 can also be one, three, or more than three.

[0057] Furthermore, the base 101 includes a support frame 10, a mounting plate 31 is disposed on the upper side of the support frame 10, and the upper limit assembly 33 further includes a sleeve 333 disposed on the lower surface of the mounting plate 31, and a nut 332 abuts against the lower end surface of the sleeve 333 and exceeds the lower surface of the support frame 10 in the downward direction. In this way, the nut 332 is exposed in the lower space of the support frame 10, which can facilitate the user to operate the nut 332 for rotation. Of course, the sleeve 333 may not be provided, and the nut 332 may be directly locked and abutted against the lower surface of the mounting plate 31.

[0058] The utility model also provides a laser processing device, which includes the aforementioned working platform. The specific structure of the working platform refers to the above-mentioned embodiment. Since the laser processing device adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here. Among them, the laser processing device also includes a laser mechanism, which can perform laser processing on the workpiece on the working platform.

[0059] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A working platform, characterized in that: The invention comprises a base and at least two sub-platforms arranged on the base, wherein the sub-platforms comprise: A platform body, wherein the upper surfaces of at least two of the platform bodies are spliced ​​together to form a working surface; and An adjusting mechanism is disposed below the platform body and connected to the base, and the adjusting mechanism can adjust the height position of the platform body relative to the base.

2. The working platform according to claim 1, characterized in that: There are at least three adjusting mechanisms, and at least three adjusting mechanisms are distributed at intervals on the lower surface of the platform body.

3. The working platform according to claim 2, characterized in that: The adjustment mechanism includes a mounting plate and a lower limit assembly, wherein the mounting plate is arranged on the base, and the lower limit assembly includes an upper adjustment member movably arranged on the mounting plate, wherein the upper end of the upper adjustment member is connected to the platform body and can limit the downward displacement of the platform body.

4. The working platform according to claim 3, characterized in that: The upward adjustment member is configured as a screw rod, and the lower limit assembly also includes a nut seat arranged on the mounting plate. The upper end of the screw rod is threaded through the nut seat and is used to lift the platform body.

5. The working platform according to claim 4, characterized in that: The lower limit assembly also includes a thrust bearing provided at the upper end of the screw rod and a bearing seat provided at the platform body, the bearing seat is sleeved on the circumference of the thrust bearing, the upper end surface of the thrust bearing abuts against the lower surface of the platform body, and the upper surface of the screw rod is spaced apart from the lower surface of the platform body; And / or, the lower limit assembly further comprises an adjusting hand wheel arranged at the lower end of the screw rod, the outer peripheral surface of the adjusting hand wheel is provided with a scale, and the mounting plate is provided with a pointer corresponding to the scale; And / or, the lower limit assembly also includes a locking unit, which includes a clamping member arranged on the mounting plate, and a locking member screwed to the clamping member, the locking member can adjust the aperture of the opening of the clamping member, and the part of the screw rod passing through the opening can be clamped by the clamping member to achieve fixation of the screw rod relative to the mounting plate.

6. The working platform according to claim 3, characterized in that: The adjustment mechanism also includes an upper limit assembly, which includes a lower adjustment member movably arranged on the mounting plate, the upper end of the lower adjustment member is connected to the platform body and can limit the upward displacement of the platform body.

7. The working platform according to claim 6, characterized in that: The lower adjustment member is configured as a bolt, and the upper limit assembly further includes a nut arranged on the mounting plate, and the lower end of the bolt passes through the mounting plate and is threadedly connected with the nut.

8. The working platform according to claim 7, characterized in that: The base includes a support bracket, the mounting plate is arranged on the upper side of the support bracket, the upper limit assembly also includes a sleeve arranged on the lower surface of the mounting plate, the nut abuts against the lower end surface of the sleeve and exceeds the lower surface of the support bracket in a downward direction.

9. The working platform according to any one of claims 1 to 8, characterized in that: There is a fitting gap between two adjacent platform bodies, and the fitting gap has a value range of 0.2 mm to 1 mm; Alternatively, the fitting gap has a value range of 3 mm to 10 mm, and the working platform further includes a buffer gasket embedded in the fitting gap.

10. A laser processing device, characterized in that: Comprising a working platform as claimed in any one of claims 1 to 9.

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