Floating pressing mechanism on portable light cutting machine

Abstract

The utility model relates to a floating hold-down mechanism on a portable optical cutting machine, which comprises a support frame and two cutting machine bases, and is characterized in that the top surfaces of two ends of the support frame are respectively provided with a slide rail, two slide rails are arranged on the top surface of any end at intervals, a mounting groove is arranged between the two slide rails, and the two slide rails are arranged on the mounting groove. A driving assembly is further arranged in the cutting machine base, the output end of the driving assembly extends outwards, a rolling wheel is arranged at the end of the driving assembly, and the surface of the rolling wheel is attached to the bottom face of the mounting groove and drives the cutting machine base to move along the sliding rail; a transmission structure on an existing light cutting machine base is replaced with elastic connection, downward thrust is applied to the fixing plate through elasticity of the spring rod, even if an assembly gap is formed between the roller and the rack due to abrasion, the spring rod can make up the gap through the elasticity immediately, and therefore it is ensured that the roller and the rack are always in a meshed state, and the service life of the roller and the rack is prolonged. And the operation stability of the base of the light cutting machine is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting equipment technology, specifically to a floating clamping mechanism on a portable laser cutting machine. Background Technology

[0002] There are many types of cutting machines, and laser cutting machines are one of them. Portable handheld laser cutting machines are a type of laser cutting machine. They are small in size, easy to carry, and suitable for cutting thin plates.

[0003] In existing portable laser cutting machines, a gear and rack transmission structure is often used as the power source for the entire machine base. The movement of the machine base is achieved by controlling the drive motor to transport the cutting head to the designated position. However, existing gear and rack structures are mostly fixed structures, that is, the rack is fixed on the support frame and the gear is fixed inside the machine base, with a fixed distance between them. After long-term use, wear will occur between the gear and the rack, resulting in a clearance and affecting the transmission effect between them. Especially when subjected to external vibrations and other factors, the machine base may malfunction. Utility Model Content

[0004] Based on the above description, this utility model provides a floating clamping mechanism for a portable optical cutting machine, which solves the problem that the transmission structure of existing portable optical cutting machines mostly uses gears and racks for transmission displacement, and this structure is fixedly installed, which leads to a gap in the fit due to wear after long-term operation, thus affecting the normal operation of the cutting machine base.

[0005] This utility model is achieved through the following technical solution:

[0006] A floating clamping mechanism for a portable laser cutting machine includes a support frame and two cutting machine bases. The top surfaces of both ends of the support frame are respectively provided with slide rails, and each end of the top surface has two slide rails arranged at intervals. The bottom of the two cutting machine bases has protrusions that are respectively mounted on the slide rails on both sides of the top surface of the support frame. A mounting groove is also provided between the two slide rails. A drive assembly is also provided inside each cutting machine base. The output end of the drive assembly extends outward and has a roller at its end. The surface of the roller is in contact with the bottom surface of the mounting groove and drives the cutting machine base to move along the slide rails. A mounting plate is also arranged laterally between the two cutting machine bases, and a laser cutting head is slidably mounted on the mounting plate.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the drive assembly includes a slot located at the center of the bottom surface of the cutting machine base. A limiting groove is vertically provided on the inner wall of the slot. A fixing plate is also slidably installed inside the slot. The two sides of the fixing plate extend outward and are slidably inserted into the limiting groove. Elastic support members are also provided at the four corners of the top surface of the fixing plate. The top of the elastic support members is fixedly connected to the inner bottom surface of the slot.

[0009] Furthermore, the bottom surface of the fixed plate extends downwards at both ends to form connecting plates, and through holes are provided on the side walls of the two connecting plates. A shaft is provided at the center of the roller, and the two ends of the shaft are respectively movably inserted into the through holes on both sides.

[0010] Furthermore, the base of the cutting machine is equipped with a drive motor, and the inner bottom surface of the slot is equipped with a transmission shaft. The top end of the transmission shaft extends upward and is connected to the output end of the drive motor. The fixing plate is also movably mounted with a connecting sleeve through ball bearings. The connecting sleeve is movably sleeved with the bottom end of the transmission shaft and a matching spline structure is provided between the two.

[0011] Furthermore, a worm is vertically provided at the bottom end of the connecting sleeve, and a worm wheel is also provided on the central shaft of the roller, the worm wheel engaging with the worm in a transmission.

[0012] Furthermore, the elastic support is a spring rod, and rectangular plates are respectively provided at both ends of the elastic support. The rectangular plates are respectively locked and fixed to the top surface of the fixing plate and the bottom surface of the slot by bolts.

[0013] Furthermore, the surface of the roller is surrounded by toothed portions, and the bottom surface of the mounting groove is provided with a rack, and the roller meshes with the rack through the toothed portions on its surface.

[0014] Furthermore, at least one of the top surfaces of the cutting machine base is provided with a display screen and a control panel, and a grating sensor for distance measurement is provided between the slide rail and the bottom of the cutting machine base, the grating sensor being electrically connected to the display screen.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0016] This application improves upon existing portable laser cutting machines by replacing the transmission structure on the existing laser cutting machine base with an elastic connection. Specifically, a spring rod is used in conjunction with a fixing plate. Without affecting the normal transmission of the rollers, the elasticity of the spring rod applies a downward pushing force to the fixing plate. Even if a gap appears between the two due to wear, the spring rod will immediately compensate for this gap with its elasticity, thereby ensuring that the rollers and rack are always in a meshed state, which greatly improves the stability of the laser cutting machine base operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the supporting frame and the optical cutting machine in this embodiment;

[0018] Figure 2 This is a schematic diagram of the slide rail and mounting groove in this embodiment;

[0019] Figure 3 This is a schematic diagram of the bottom structure of the cutting machine base in this embodiment;

[0020] Figure 4 This is a schematic diagram of the top structure of the driving component in this embodiment;

[0021] Figure 5 This is a schematic diagram of the transmission structure of the roller and worm in this embodiment;

[0022] The components are as follows: 1. Support frame; 11. Slide rail; 12. Mounting slot; 2. Cutting machine base; 3. Drive assembly; 31. Slot; 32. Limiting slot; 33. Fixing plate; 34. Connecting plate; 35. Roller; 36. Elastic support; 37. Drive shaft; 38. Connecting sleeve; 39. Worm gear; 4. Drive motor. Detailed Implementation

[0023] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0025] Combination Figure 1-5 As shown, a floating clamping mechanism on a portable light cutting machine includes:

[0026] Support frame 1 is placed on the ground or workbench to support the laser cutting equipment, and the metal sheet is placed at the center below support frame 1.

[0027] The cutting machine base 2 has two parts, one for the main machine and the other for the auxiliary machine. The two bases are respectively installed on the top side of the support frame 1, and a mounting plate is arranged horizontally between them. The mounting plate is equipped with a retractable and adjustable laser cutting head to realize the three-dimensional movement function of x, y, and z axes.

[0028] The drive component 3 is located inside the cutting machine base 2 and is used to move the cutting machine base 2 on the top surface of the support frame 1.

[0029] Specifically, in the above structure, the drive assembly 3 includes a slot 31 located at the center of the bottom surface of the cutting machine base 2. The slot 31 is rectangular, and limiting grooves 32 are provided on the side walls of two opposite sides of the slot 31. At the same time, a fixing plate 33 is horizontally arranged inside the slot 31. The two sides of the fixing plate 33 extend toward the limiting grooves 32 and are slidably assembled with them. At the same time, four elastic support members 36 are provided at the four corners of the top surface of the fixing plate 33. The elastic support members 36 are spring rods, and their two ends are respectively bolted to the bottom surface of the slot 31 and the top surface of the fixing plate 33 through rectangular plates. Therefore, the fixing plate 33 can extend and retract inside the slot 31 along the direction of the limiting grooves 32.

[0030] In addition, connecting plates 34 are formed by vertically extending downward on both sides of the bottom surface of the fixed plate 33. Through holes are provided on the side wall of the connecting plate 34. A roller 35 is provided at the center of the two connecting plates 34, and a central shaft is arranged horizontally at the center of the roller 35. The two ends of the central shaft extend to both sides and are inserted into the through holes. Therefore, the roller 35 can rotate flexibly between the two connecting plates 34.

[0031] A slide rail 11 is provided on the top surface of the support frame 1. The slide rail 11 is divided into two groups and is arranged on both sides of the support frame 1. The main machine and the auxiliary machine are located on the two groups of slide rail 11 respectively. Each group of slide rail 11 has two slide rails arranged at intervals. Therefore, the cutting machine base 2 should also have a protruding part that is movably inserted into the slide rail 11 so that the two can be movably assembled. In addition, there is a mounting groove 12 between the two slide rails 11. The roller 35 located at the bottom of the cutting machine base 2 is located inside the mounting groove 12 and its surface is in contact with the bottom surface of the mounting groove 12 for cooperative operation.

[0032] The cutting machine base 2 is also equipped with a power source, namely a drive motor 4. The output end of the drive motor 4 is fixedly arranged downwards. At the same time, a transmission shaft 37 rotates on the inner bottom surface of the slot 31. A connecting sleeve 38 is rotatably installed on the fixed plate 33. The output end of the drive motor 4 is vertically downwards and connected to the top of the transmission shaft 37 to drive the transmission shaft 37 to rotate. The lower half of the transmission shaft 37 is inserted into the top of the connecting sleeve 38. The two are combined with a spline structure, so they can drive the entire connecting sleeve 38 to rotate synchronously. A worm 39 is also provided on the top of the connecting sleeve 38. The worm 39 extends vertically downwards and is close to the central axis of the roller 35. A worm wheel is provided on the central axis of the roller 35. The worm wheel and the worm 39 are meshed, thereby driving the entire roller 35 to rotate, so as to drive the cutting machine base 2 to move on the slide rail 11.

[0033] The above structure can also drive the roller 35 to rotate by directly equipping a motor on the side wall of the connecting plate 34 and engaging it directly with the central shaft.

[0034] Furthermore, the roller 35 is a solid wheel with teeth arranged around its outer side wall, and a rack is provided on the bottom surface of the mounting groove 12. The two mesh with each other. Due to the downward thrust of the spring rod, the roller 35 will always be in close contact with the rack. Even if a gap appears due to long-term wear, it can be automatically adjusted by the spring rod. Compared with the traditional fixed installation structure, this greatly improves the stability of the cutting machine base 2.

[0035] In the above structure, the host should also be equipped with a display screen and a control panel, and a grating sensor for distance measurement is provided between the slide rail 11 and the bottom of the cutting machine base 2. The grating sensor is electrically connected to the display screen to display its displacement distance in real time.

[0036] The grating sensor can also be replaced with a laser rangefinder. That is, a reflective end is set on both ends of the slide rail 11, and a laser emitting end is set on the protruding part of the cutting machine base 2. The position of the cutting machine base 2 can be measured by laser reflection.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the technical solutions of the embodiments of this utility model.

Claims

1. A floating clamping mechanism for a portable light cutting machine, comprising a support frame (1) and two cutting machine bases (2), characterized in that, The top surfaces of both ends of the support frame (1) are respectively provided with slide rails (11), and each slide rail (11) on the top surface of any end is provided with two rails arranged at intervals. The bottom of the two cutting machine bases (2) is provided with protrusions and is respectively installed on the slide rails (11) on both sides of the top surface of the support frame (1). A mounting groove (12) is also provided between the two slide rails (11). The interior of the cutting machine base (2) is also provided with a drive assembly (3). The output end of the drive assembly (3) extends outward and is provided with a roller (35) at the end. The surface of the roller (35) is in contact with the bottom surface of the mounting groove (12) and drives the cutting machine base (2) to move along the slide rail (11). A mounting plate is also arranged horizontally between the two cutting machine bases (2), and a laser cutting head is slidably mounted on the mounting plate.

2. The floating clamping mechanism on the portable light cutting machine according to claim 1, characterized in that, The drive assembly (3) includes a slot (31) located at the center of the bottom surface of the cutting machine base (2). A limiting groove (32) is vertically provided on the inner wall of the slot (31). A fixing plate (33) is also slidably installed inside the slot (31). The two sides of the fixing plate (33) extend outward and are slidably inserted into the limiting groove (32). Elastic support members (36) are provided at the four corners of the top surface of the fixing plate (33). The top of the elastic support member (36) is fixedly connected to the inner bottom surface of the slot (31).

3. The floating clamping mechanism on the portable light cutting machine according to claim 2, characterized in that, The bottom surface of the fixed plate (33) extends downward to form a connecting plate (34). Through holes are provided on the side walls of the two connecting plates (34). A shaft is provided at the center of the roller (35). The two ends of the shaft are respectively movably inserted into the through holes on both sides.

4. The floating clamping mechanism on the portable light cutting machine according to claim 3, characterized in that, The cutting machine base (2) is also equipped with a drive motor (4) inside, and a transmission shaft (37) is also provided on the inner bottom surface of the slot (31). The top end of the transmission shaft (37) extends upward and is connected to the output end of the drive motor (4). The fixing plate (33) is also movably installed with a connecting sleeve (38) through a ball bearing. The connecting sleeve (38) is movably sleeved with the bottom end of the transmission shaft (37) and a matching spline structure is provided between them.

5. The floating clamping mechanism on the portable light cutting machine according to claim 4, characterized in that, The bottom end of the connecting sleeve (38) is vertically provided with a worm (39), and the central shaft of the roller (35) is also provided with a worm wheel, which is engaged with the worm (39) in a transmission.

6. The floating clamping mechanism on the portable light cutting machine according to claim 5, characterized in that, The elastic support (36) is a spring rod, and the two ends of the elastic support (36) are respectively provided with rectangular plates. The rectangular plates are respectively locked and fixed to the top surface of the fixing plate (33) and the bottom surface of the slot (31) by bolts.

7. The floating clamping mechanism on the portable light cutting machine according to claim 6, characterized in that, The surface of the roller (35) is surrounded by toothed portions, and the bottom surface of the mounting groove (12) is provided with a rack. The roller (35) meshes with the rack through the toothed portions on its surface.

8. The floating clamping mechanism on the portable light cutting machine according to claim 1, characterized in that, At least one of the cutting machine bases (2) is provided with a display screen and a control panel on its top surface, and a grating sensor for distance measurement is provided between the slide rail (11) and the bottom of the cutting machine base (2), and the grating sensor is electrically connected to the display screen.

Images