Nameplate clamping device of laser marking machine

Abstract

The utility model relates to a nameplate clamping device of a laser marking machine, which is arranged in a marking area of the laser marking machine so as to position a nameplate to be marked, and the edge of the marking area of the laser marking machine is fixedly provided with a U-shaped frame. A pair of adjustable first limiting assemblies and a second limiting assembly are arranged on the frame shaped like the Chinese character'fang ', the pair of first limiting assemblies are arranged on the two opposite side walls of the frame shaped like the Chinese character'fang' respectively, and the second limiting assembly is arranged on the connecting wall in the middle of the frame shaped like the Chinese character'fang '; according to the device, the distance between the pair of first limiting assemblies is adjustable, so that the device can be used for clamping nameplates with different widths, and meanwhile, the position of the second limiting assembly is changeable, so that the device can be applied to the nameplates with different lengths.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary equipment for laser marking machines, in particular to a nameplate positioning device for a laser marking machine. Background Art

[0002] Laser marking is to use a laser beam to make permanent marks on the surfaces of various different substances. The marking effect is achieved by evaporating the surface layer of the substance to expose the deeper layer, or by causing chemical and physical changes in the surface layer of the substance through light energy to "etch" a mark, or by burning off part of the substance through light energy to show the required etched pattern or text. Before the marking operation starts, the nameplate to be marked needs to be placed in the marking area and its position corrected. Although the existing laser marking machines have positioning components, the positioning components do not have an adjustment function, that is, a single positioning component can only adapt to a nameplate with a specific length or width and cannot be adjusted adaptively according to the length and width of the nameplate, making the positioning device unable to be widely applied to position nameplates with different lengths and widths. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is that the width or length of the positioning device of the existing laser marking machine cannot be adjusted arbitrarily,

[0004] resulting in relatively limited nameplate sizes that the positioning device can be applied to. In view of the above defects of the prior art, a nameplate positioning device for a laser marking machine is provided.

[0005] To solve the above technical problem, the technical solution adopted by the utility model is as follows:

[0006] Construct a nameplate positioning device for a laser marking machine. The positioning device is arranged in the marking area of the laser marking machine to position the nameplate to be marked. A "C"-shaped frame is fixedly arranged on the edge of the marking area of the laser marking machine. A pair of adjustable first limiting components and a second limiting component are arranged on the "C"-shaped frame. One pair of the first limiting components are respectively arranged on two opposite side walls of the "C"-shaped frame, and the second limiting component is arranged on the connecting wall in the middle of the "C"-shaped frame; and the pair of first limiting components can approach each other or move away from each other, and the second limiting component can move along the length direction of the first limiting component to change the position of the area surrounded by the first limiting component and the second limiting component.

[0007] Preferably, each first limiting component includes a telescopic part A and a side limiting plate fixedly connected to the telescopic part A. The telescopic part A is fixedly arranged on the side wall of the "C"-shaped frame, and the side limiting plate is fixedly arranged at the telescopic end of the telescopic part A. The lower surface of the side limiting plate is not connected to the contact part of the upper surface of the marking area of the laser marking machine; during use, the distance between the side limiting plates in the two first limiting components is adjusted according to the width of the nameplate.

[0008] Preferably, the second limiting assembly includes a telescopic part B and an end limiting structure fixedly connected to the telescopic part B, the telescopic part B is fixedly arranged above the middle of the connecting wall, the end limiting structure is fixedly arranged at the telescopic end of the telescopic part B, and the end limiting structure has two end limiting rods with variable spacing, the two end limiting rods are located between the two side limiting plates, and the end limiting rods respectively abut against the side limiting plates on the corresponding sides.

[0009] Preferably, the end limiting structure includes a main rod fixedly arranged at the end of the telescopic part B, and two cavities are symmetrically arranged inside the main rod. A strip-shaped through hole is opened on the lower side of each cavity, and an end limiting rod is movably arranged in each cavity, and a spring is arranged between the limiting rod and the partition wall of the two cavities. The spring makes the end limiting rod always maintain a tendency to move outward to ensure that the lower end of the end limiting rod can abut against the inner side of the side limiting plate.

[0010] Preferably, the upper part of the end limit rod has a sliding end matching the cavity, the sliding end is movably arranged in the cavity, the end of the end limit rod extends to the upper surface of the marking area of ​​the laser marking machine, and the lower ends of the two end limit rods are used to limit the front end of the nameplate.

[0011] Preferably, it also includes at least one negative pressure fixing component, which generates a negative pressure adsorption force on the lower surface of the nameplate so that the lower surface of the nameplate is closely fitted with the upper surface of the marking area of ​​the laser marking machine.

[0012] Preferably, the negative pressure fixing component is movably arranged on the lower surface of the marking area of ​​the laser marking machine, the adsorption end of the negative pressure fixing component is located in a preset long strip hole on the marking area, and the upper surface of the adsorption end is coplanar with the upper surface of the marking area.

[0013] Preferably, the negative pressure fixing assembly includes a threaded drive rod, a guide rod, a slide seat, an adsorption end and a drive motor, wherein the threaded drive rod and the guide rod are arranged on the lower surface of the marking area, and the threaded drive rod and the guide rod are respectively arranged on both sides of the long hole along the length direction of the long hole, one end of the slide seat is slidably arranged on the guide rod, and the other end is threadedly connected to the threaded drive rod, and the threaded drive rod is driven by a motor arranged on the outside of the marking machine; when in use, the threaded drive rod rotates to drive the slide seat to move along the length direction of the long hole.

[0014] Preferably, an air pipe is provided at the bottom of the slide, and the upper end of the air pipe passes through the slide and is connected to the adsorption end, and the lower end of the air pipe is connected to the negative pressure pump through a connecting pipe.

[0015] The beneficial effects of the utility model are:

[0016] 1. The utility model provides two adjustable limit assemblies in the marking area, so that the device can be applied to nameplates of different lengths and widths, and the adjustment of the limit assemblies is basically automated.

[0017] 2. The utility model sets a negative pressure adsorption component at the lower side of the marking area, and the adsorption end of the negative pressure adsorption component is in the same plane as the upper side of the marking area. The negative pressure adsorption force generated by the adsorption end can adsorb and fix the nameplate on the upper surface of the marking area to prevent the nameplate from warping and moving. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. 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 these drawings without creative work:

[0019] Figure 1 It is a three-dimensional diagram of the utility model.

[0020] Figure 2 The utility model is a cross-sectional three-dimensional Figure 1 .

[0021] Figure 3 The utility model is a cross-sectional three-dimensional Figure 2 .

[0022] Figure 4 The three-dimensional structure of the two limit components of the utility model Figure 1 .

[0023] Figure 5 The three-dimensional structure of the two limit components of the utility model Figure 2 .

[0024] Figure 6 It is a cross-sectional view of two limit assemblies of the utility model. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the following will be described clearly and completely in combination with the technical solution in the embodiments of the utility model. Obviously, the described embodiments are partial embodiments of the utility model, not all 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 protection scope of the utility model.

[0026] like Figure 1-6, The preferred embodiment of the present utility model is shown; a nameplate positioning device for a laser marking machine. The positioning device is arranged in the marking area of the laser marking machine to position the nameplate to be marked. At the edge of the marking area 10 of the laser marking machine, a "C"-shaped frame 100 is fixedly arranged. The "C"-shaped frame 100 includes two side walls 101 and a connecting wall 102 connecting the two side walls 101. Among them, the two side walls are parallel to each other, and the connecting wall is arranged at the end of the side wall and is perpendicular to the side wall.

[0027] A pair of adjustable first limiting components 200 and an adjustable second limiting component 300 are arranged on the "C"-shaped frame 100. Among them, the pair of first limiting components 200 are respectively arranged on two opposite side walls 101 of the "C"-shaped frame 100, and the second limiting component 300 is arranged on the connecting wall 102 in the middle of the "C"-shaped frame 100. The two first limiting components 200 can approach each other or move away from each other, thereby changing the distance between the two first limiting components 200 to match one of the width or length of the nameplate. The second limiting component 300 can move along the length direction of the first limiting component 200 to change the position of the area enclosed by the first limiting component 200 and the second limiting component 300.

[0028] The first limiting component 200 and the second limiting component 300 jointly limit the position of the nameplate on the horizontal plane.

[0029] In this embodiment, each first limiting component 200 includes a telescopic part A201 and a side limiting plate 202 fixedly connected to the telescopic part A201. Among them, the telescopic part A201 is fixedly arranged on the side wall of the "C"-shaped frame 100. The telescopic part A201 has a telescopic end, and the telescopic end can telescope between the two side walls 101. The side limiting plate 202 is fixedly arranged at the telescopic end of the telescopic part A201. The telescopic end drives the side limiting plate 202 to move synchronously. Moreover, during the movement, the lower surface of the side limiting plate 202 and the upper surface of the marking area 10 of the laser marking machine are always in a state of non-contact connection; when in use, the distance between the side limiting plates 202 in the two first limiting components 200 is adjusted according to the width of the nameplate.

[0030] In this embodiment, the second limiting assembly 300 includes a telescopic portion B301 and an end limiting structure 302 fixedly connected to the telescopic portion B301. The telescopic portion B301 is fixedly arranged above the middle of the connecting wall 102. Specifically, a convex plate 1021 is formed in the middle of the connecting wall 102 for setting the telescopic portion B, so that the connecting wall 102 is in the shape of a "convex" character. The telescopic portion B301 is fixedly arranged on the convex plate 1021 and is perpendicular to the connecting wall 102. As a telescopic structure, the telescopic portion B301 has a telescopic end, which is located between the two side walls 101 and can be telescoped along the length direction of the two side walls 101. The end limiting structure 302 is fixedly arranged at the telescopic end of the telescopic portion B301. The end limiting structure 302 has two end limiting rods 3021 with variable spacing, the two end limiting rods 3021 are located between the two side limiting plates 202, and the two end limiting rods 3021 can respectively abut against the side limiting plates 202 on the corresponding sides.

[0031] Further, if Figure 2-Figure 6 As shown, the end limit structure 302 includes a main rod 3022 fixedly arranged at the end of the telescopic part B, two cavities 3022a are symmetrically arranged inside the main rod 3022, and a strip-shaped through hole is opened on the lower side of each cavity 3022a. An end limit rod 3021 is movably (slidably) arranged in each cavity 3022a, and a spring 3022b is arranged between the end limit rod 3021 and the partition wall of the cavity 3022a where it is located. When the two side plates 202 are located in the main rod, When the length of the rod 3022 is within the range, the spring 3022b is always in a compressed state, and the end limit rod 3021 is always kept moving outward by the spring 3022b, so as to ensure that the lower end of the end limit rod 3021 abuts against the inner side of the side limit plate 202. When the two side limit plates 202 are outside the length of the main rod 3022, the end limit rod 3021 moves to the end of the cavity 3022a under the action of the spring 3022b. In this way, the two end limit rods 3021 with variable distances from each other can prevent the end limit structure from affecting the adjustment of the distance between the side limit plates 202 in the first limit assembly 200.

[0032] It should be noted that the telescopic part A and the telescopic part B can adopt a pneumatic cylinder, an oil cylinder or a telescopic electric cylinder, etc., and preferably a telescopic electric cylinder is adopted.

[0033] Furthermore, in order to ensure that the upper end of the end limit rod 3021 can be stably arranged in the cavity 3022a, the upper part of the end limit rod 3021 has a sliding end that matches the cavity 3022a, and the sliding end is movably arranged in the cavity 3022a. The end of the end limit rod 3021 extends to the upper surface of the marking area 10 of the laser marking machine, and the lower ends of the two end limit rods 3021 are used to limit the front end of the nameplate. The end of the end limit rod 3021 extends to the upper surface of the marking area 10 of the laser marking machine, so that the lower end of the end limit rod 3021 and the upper surface of the marking area 10 are in a five-gap state, which can prevent a thinner nameplate from passing through between the lower end of the end limit rod 3021 and the upper surface of the marking area 10, thereby affecting the positioning.

[0034] like Figure 1-Figure 3 As shown, in order to make the lower surface of the nameplate placed in the marking area 10 fit tightly with the upper surface of the marking area 10, the device also includes at least one negative pressure fixing component 400, which generates a negative pressure adsorption force on the lower surface of the nameplate. Under the action of the negative pressure suction force, the lower surface of the nameplate fits tightly with the upper surface of the marking area 10 of the laser marking machine, so that the stability of the nameplate position can be ensured, and the heat generated during the marking process can be quickly transferred to the marking area through the contact surface, so as to avoid damage caused by excessive temperature of the nameplate.

[0035] Specifically, the negative pressure fixing component 400 is movably arranged on the lower surface of the marking area 10 of the laser marking machine, and the negative pressure fixing component 400 can move along a preset direction (the direction is consistent with the moving direction of the second limit component) so that the position of the negative pressure fixing component 400 is consistent with the position of the nameplate. Among them, the suction end of the negative pressure fixing component 400 is located in the preset long strip hole on the marking area 10, the preset long strip hole on the marking area is parallel to the side plate, and the upper surface of the suction end is coplanar with the upper surface of the marking area.

[0036] Specifically, the negative pressure fixing assembly 400 includes a threaded drive rod 401, a guide rod 402, a slide 403, an adsorption end 404 and a driving motor, wherein the threaded drive rod 401 and the guide rod 402 are arranged on the lower surface of the marking area 10, the threaded drive rod 401 and the guide rod 402 are parallel to the lower surface of the marking area 10, and the threaded drive rod 401 and the guide rod 402 are respectively arranged on both sides of the long hole along the length direction of the long hole, one end of the slide 403 is slidably arranged on the guide rod 402, and the other end is threadedly connected to the threaded drive rod 401, and the threaded drive rod 401 is driven by a motor arranged on the outside of the marking machine. When in use, the threaded drive rod 401 rotates to drive the slide 403 to move along the length direction of the long hole.

[0037] It should be noted that an air pipe 4031 is provided at the bottom of the slide 403, and the upper end of the air pipe 4031 passes through the slide 403 and is connected to the suction end 404, and the lower end of the air pipe 4031 is connected to the negative pressure pump through a connecting pipe, and a plurality of suction holes are provided on the upper surface of the suction end 404. When marking, the suction end 404 generates suction force on the lower surface of the nameplate through the negative pressure pump, thereby keeping the nameplate fixed in the vertical direction.

[0038] It should be understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. A nameplate positioning device for a laser marking machine, which is arranged in the marking area of ​​the laser marking machine to position the nameplate to be marked, and is characterized by: A "C"-shaped frame is fixedly arranged at the edge of the marking area of the laser marking machine. A pair of adjustable first limiting components and a second limiting component are arranged on the "C"-shaped frame. One pair of first limiting components are respectively arranged on two opposite side walls of the "C"-shaped frame, and the second limiting component is arranged on the connecting wall in the middle of the "C"-shaped frame. And the pair of first limiting components can approach each other or move away from each other, and the second limiting component can move along the length direction of the first limiting component to change the position of the area surrounded by the first limiting component and the second limiting component.

2. A nameplate positioning device for a laser marking machine according to claim 1, characterized in that: Each first limiting component includes a telescopic part A and a side limiting plate fixedly connected to the telescopic part A. The telescopic part A is fixedly arranged on the side wall of the "C"-shaped frame, and the side limiting plate is fixedly arranged at the telescopic end of the telescopic part A. The lower surface of the side limiting plate is not connected to the contact part of the upper surface of the marking area of the laser marking machine. During use, the distance between the side limiting plates in the two first limiting components is adjusted according to the width of the nameplate.

3. The nameplate positioning device for a laser marking machine according to claim 2, characterized in that: The second limiting component includes a telescopic part B and an end limiting structure fixedly connected to the telescopic part B. The telescopic part B is fixedly arranged above the middle of the connecting wall, and the end limiting structure is fixedly arranged at the telescopic end of the telescopic part B. The end limiting structure has two end limiting rods with variable spacing. The two end limiting rods are located between the two side limiting plates, and the end limiting rods can respectively abut against the side limiting plates on the corresponding sides.

4. A nameplate positioning device for a laser marking machine according to claim 3, characterized in that: The end limiting structure includes a main rod fixedly arranged at the end of the telescopic part B. Two cavities are symmetrically arranged inside the main rod. A strip-shaped through hole is opened on the lower side surface of each cavity. An end limiting rod is movably arranged in each cavity. And a spring is arranged between the limiting rod and the partition wall of the two cavities. The spring makes the end limiting rod always keep the tendency of moving towards the outside to ensure that the lower end of the end limiting rod abuts against the inner side of the side limiting plate.

5. The nameplate positioning device for a laser marking machine according to claim 4, characterized in that: The upper part of the end limiting rod has a sliding end matching with the cavity. The sliding end is movably arranged in the cavity. The end of the end limiting rod extends to the upper surface of the marking area of the laser marking machine. The lower ends of the two end limiting rods are used for limiting the front end of the nameplate.

6. A nameplate positioning device for a laser marking machine according to any one of claims 1 to 5, characterized in that: It also includes at least one negative pressure fixing component. The negative pressure fixing component generates a negative pressure adsorption force on the lower surface of the nameplate to make the lower surface of the nameplate closely fit with the upper surface of the marking area of the laser marking machine.

7. The nameplate positioning device for a laser marking machine according to claim 6, characterized in that: The negative pressure fixing component is movably arranged on the lower surface of the marking area of the laser marking machine. The adsorption end of the negative pressure fixing component is located in a preset long strip hole on the marking area, and the upper surface of the adsorption end is coplanar with the upper surface of the marking area.

8. The nameplate positioning device for a laser marking machine according to claim 7, characterized in that: The negative pressure fixing assembly includes a threaded drive rod, a guide rod, a slide seat, an adsorption end and a drive motor, wherein the threaded drive rod and the guide rod are arranged on the lower surface of the marking area, and the threaded drive rod and the guide rod are respectively arranged on both sides of the long hole along the length direction of the long hole, one end of the slide seat is slidably arranged on the guide rod, and the other end is threadedly connected to the threaded drive rod, and the threaded drive rod is driven by a motor arranged outside the marking machine; when in use, the threaded drive rod rotates to drive the slide seat to move along the length direction of the long hole.

9. The nameplate positioning device for a laser marking machine according to claim 8, characterized in that: An air pipe is arranged at the bottom of the slide seat, and the upper end of the air pipe passes through the slide seat and is communicated with the adsorption end, and the lower end of the air pipe is connected with the negative pressure pump through a connecting pipe.

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