Large stroke wide-format laser cutting machine stroke guide mechanism

Abstract

The present application relates to laser cutting machine technical field, specifically is big stroke wide width surface laser cutting machine stroke guide mechanism, including base and the sliding plate of sliding connection on the base, the side of the sliding plate is arranged with a plurality of tooth blocks along its track, the main gear of rotating connection in the sliding plate is arranged in turn below the sliding plate from top to bottom; The pinion of rotating connection in the main gear, the outer tooth of the pinion coincides with the outer tooth of the main gear, and the main gear and the pinion are engaged in the tooth block; The connecting piece of rotating connection in the main gear shaft center, the other end of the connecting piece is connected with the end of the pinion away from the main gear. The present application is additionally provided with a pinion coaxial with the main gear, the pinion is driven by the connecting piece and can rotate relative to the main gear during walking to fill the tooth side gap between the main gear and the tooth block, improve the stability during walking, thereby indirectly improve the cutting precision of the laser cutting machine.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laser cutting machine, in particular to a stroke guiding mechanism of large-stroke wide-width laser cutting machine. BACKGROUND

[0002] The stroke guiding mechanism of large-stroke wide-width laser cutting machine is usually installed on both sides of the laser cutting machine, and is used to drive the laser cutting machine to move along the track.

[0003] In the cutting process, the walking gear is often used to drive the cutting machine to move in cooperation with the gear rack. The transmission between the gear and the gear rack inevitably has a side gap. Due to the manufacturing and assembly errors of the gear, the elastic deformation and thermal expansion of the gear transmission, and the lubrication of the gear teeth, the side gap is enlarged with the cumulative number of gear rotation in one direction, the meshing effect of the gear and the gear rack is attenuated, the stability of the laser cutting machine transmission is affected, and thus the size error of the cut workpiece is caused. SUMMARY

[0004] The present application provides a stroke guiding mechanism of large-stroke wide-width laser cutting machine to solve the problem that the guiding structure in the prior art is not stable during large-stroke movement, and the specific technical solutions are as follows:

[0005] The stroke guiding mechanism of large-stroke wide-width laser cutting machine comprises a base and a sliding plate slidingly connected to the base, and a plurality of tooth blocks are arranged on one side of the sliding plate along the track thereof.

[0006] A main gear is rotatably connected to the sliding plate;

[0007] A secondary gear is rotatably connected to the main gear, the external teeth of the secondary gear coincide with the external teeth of the main gear, and the main gear and the secondary gear are both engaged with the tooth blocks;

[0008] A connecting piece is rotatably connected to the center of the main gear, and the other end of the connecting piece is connected to the end of the secondary gear away from the main gear;

[0009] An elastic piece is connected between the connecting piece and the main gear, and the elastic piece intersects with the connecting piece on the projection plane of the main gear;

[0010] The elastic piece applies a tensile force to the connecting piece to drive the secondary gear to rotate relative to the main gear.

[0011] As a further technical solution of the present application, a slide is formed on the secondary gear, and a slide rod is slidingly connected in the slide, and the slide rod is connected to the connecting piece.

[0012] The connecting piece is driven to rotate relative to the auxiliary gear along the track of the slide to change the orientation of the rotation trend of the auxiliary gear.

[0013] As a further technical solution of the present application, the elastic member comprises:

[0014] The sleeve is rotatably connected to the main gear.

[0015] The insertion rod is inserted into the sleeve, and the other end of the insertion rod is rotatably connected to the connecting piece.

[0016] The spring is arranged in the sleeve, and the two ends of the spring are respectively connected to the sleeve and the insertion rod.

[0017] As a further technical solution of the present application, the end surface of the main gear facing the auxiliary gear is connected with a fixed frame, the fixed frame is slidably connected with a threaded rod, the threaded rod is rotatably connected with the sleeve, and the threaded rod is rotatably connected with a sliding block.

[0018] The sliding block is rotatable to drive the sleeve to slide along the track of the fixed frame.

[0019] The present application has the following beneficial effects:

[0020] (1) An auxiliary gear coaxial with the main gear is additionally arranged, the auxiliary gear is driven by the connecting piece to rotate relative to the main gear during walking to fill the tooth side gap between the main gear and the tooth block, thereby improving the stability during walking and indirectly improving the cutting precision of the laser cutting machine.

[0021] (2) The connecting piece is rotatable relative to the auxiliary gear along the track of the slide to change the orientation of the rotation trend of the auxiliary gear, that is, the intersection direction of the connecting piece and the elastic member on the projection plane is changed to change the orientation of the rotation trend of the auxiliary gear during walking, so as to adapt to the different directions of the main gear during walking and improve the applicability of the device. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The overall structure of the long-stroke wide-surface laser cutting machine stroke guiding mechanism is shown.

[0023] Figure 2 The structure of the slide plate is shown.

[0024] Figure 3 The structure of the auxiliary gear is shown.

[0025] Figure 4 The structure of the elastic member is shown.

[0026] Figure descriptions: 100, base; 110, toothed block; 200, slide plate; 210, main gear; 220, secondary gear; 230, connector; 240, elastic element; 241, sleeve; 242, insert rod; 243, spring; 250, slide rail; 260, slide rod; 270, fixed frame; 280, sliding block; 290, threaded rod. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0028] The stroke guide mechanism of a large-stroke, wide-format laser cutting machine is usually installed on both sides of the laser cutting machine to drive the laser cutting machine to move along the trajectory.

[0029] During the cutting process, a traveling gear and rack are often used to drive the cutting machine. The transmission between the gear and rack inevitably produces tooth backlash. Due to manufacturing and assembly errors of the gear, elastic deformation and thermal expansion during gear transmission, and tooth lubrication, for large-stroke movements, as the number of rotations of the gear in one direction accumulates, the tooth backlash increases, the meshing effect between the gear and rack decreases, affecting the stability of the laser cutting machine's transmission, and thus causing errors in the dimensions of the cut workpiece.

[0030] In response to the above technical issues, Figure 1 This diagram shows the overall structure of the stroke guide mechanism for a large-stroke, wide-format laser cutting machine. Figure 1 In this large-stroke wide-format laser cutting machine, the stroke guide mechanism includes a base 100 and a slide plate 200 slidably connected to the base 100. On one side of the slide plate 200, several tooth blocks 110 are arranged along its trajectory to form a rack.

[0031] Figure 2 A structural schematic diagram of the slide plate at position 200 is shown; Figure 3 A schematic diagram of the structure at the auxiliary gear 220 is shown; Figure 2 and Figure 3 In the middle, below the skateboard 200, from top to bottom, are arranged the following:

[0032] Rotate the main gear 210 connected to the slide plate 200;

[0033] The auxiliary gear 220 is rotatably connected to the main gear 210. The external teeth of the auxiliary gear 220 coincide with the external teeth of the main gear 210, and both the main gear 210 and the auxiliary gear 220 mesh with the tooth block 110.

[0034] The connecting piece 230 is rotatably connected to the shaft of the main gear 210, and the other end of the connecting piece 230 is connected to the end of the secondary gear 220 that is away from the main gear 210;

[0035] An elastic member 240 is connected between the connector 230 and the main gear 210. The elastic member 240 intersects the connector 230 on the projection plane of the main gear 210.

[0036] The elastic element 240 applies a tensile force to the connecting element 230, driving the secondary gear 220 to rotate relative to the main gear 210.

[0037] During the movement, the connecting piece 230 is stretched by the elastic member 240 and has a tendency to rotate in one direction. When tooth backlash occurs during the meshing of the main gear 210 and the tooth block 110, the auxiliary gear 220 is driven by the connecting piece 230 to rotate relative to the main gear 210 to fill the tooth backlash between the main gear 210 and the tooth block 110, thereby improving the stability during the movement and indirectly improving the cutting accuracy of the laser cutting machine.

[0038] Figure 3 In the middle, a slide rail 250 is provided on the auxiliary gear 220, and a slide rod 260 is slidably connected in the slide rail 250. The slide rod 260 is connected to the connecting piece 230.

[0039] The connector 230 is driven to rotate relative to the secondary gear 220 along the track of the slide 250, so as to change the orientation of the rotation trend of the secondary gear 220.

[0040] In practical use, one end of the drive connector 230 slides along the track of the slide rail 250. At this time, the connector 230 rotates around the axis of the secondary gear 220. As the connector 230 and the elastic member 240 coincide in the upward direction, the tensile force generated by the elastic member 240 on the connector 230 reaches its maximum. As the connector 230 continues to rotate, the tension of the elastic member 240 on the connector 230 gradually decreases, and the direction of the rotation trend of the connector 230 driving the secondary gear 220 changes to adapt to the different directions of the main gear 210 when it is traveling, thus improving the applicability of the lifting device.

[0041] Figure 4 A schematic diagram of the elastic element 240 is shown. Figure 4 In the middle, the elastic element 240 includes:

[0042] Rotate the sleeve 241 connected to the main gear 210;

[0043] The insertion rod 242 is inserted into the sleeve 241, and the other end of the insertion rod 242 is rotatably connected to the connector 230.

[0044] A spring 243 is installed inside the sleeve 241, and the two ends of the spring 243 are respectively connected to the sleeve 241 and the insert rod 242.

[0045] In specific use, the inserting rod 242 can slide inside the sleeve 241, the elastic member 240 is self-extended, the spring 243 is elastically deformed with the relative distance between the inserting rod 242 and the sleeve 241 changed, the elastic member 240 has the resettable property, the structure can guarantee the stability of the elastic member 240 when self-extended.

[0046] Figure 4 In the specific use, the end face of the main gear 210 towards the auxiliary gear 220 is connected with a fixed frame 270, the fixed frame 270 is slidingly connected with a threaded rod 290, the threaded rod 290 is rotationally connected with the sleeve 241, the threaded rod 290 is rotationally connected with a sliding block 280 inside;

[0047] The sliding block 280 can drive the sleeve 241 to slide along the track of the fixed frame 270 when rotating.

[0048] In use, rotating the sliding block 280 can drive the threaded rod 290 to slide along the track of the fixed frame 270, thereby driving the sleeve 241 to move synchronously, forcing the elastic member 240 to be self-extended, on one hand, the elastic member 240 can be actively compressed when the rotating trend of the auxiliary gear 220 is artificially changed, and the elastic member 240 can be stretched again after the orientation is changed, which can reduce the difficulty of changing the orientation of the auxiliary gear 220, on the other hand, the stretching interval of the elastic member 240 can be actively adjusted, and the tension of the connecting member 230 can be adjusted.

[0049] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit it.

Claims

1. A travel guide mechanism for a large-stroke, wide-format laser cutting machine, comprising a base (100) and a slide plate (200) slidably connected to the base (100), wherein a plurality of toothed blocks (110) are arranged along a trajectory on one side of the slide plate (200), characterized in that, The following are arranged from top to bottom below the slide plate (200): a main gear (210) rotatably connected to the slide plate (200); The auxiliary gear (220) is rotatably connected to the main gear (210), and the external teeth of the auxiliary gear (220) coincide with the external teeth of the main gear (210), and both the main gear (210) and the auxiliary gear (220) mesh with the tooth block (110); A connecting piece (230) is rotatably connected to the shaft of the main gear (210), and the other end of the connecting piece (230) is connected to the end of the secondary gear (220) that is away from the main gear (210); An elastic element (240) is connected between the connector (230) and the main gear (210), and the elastic element (240) intersects the connector (230) on the projection plane of the main gear (210); The elastic element (240) applies a tensile force to the connecting element (230), driving the secondary gear (220) to rotate relative to the main gear (210); The auxiliary gear (220) has a slide rail (250) and a slide rod (260) is slidably connected in the slide rail (250). The slide rod (260) is connected to the connecting piece (230). The connector (230) is driven to rotate relative to the secondary gear (220) along the trajectory of the slide (250) to change the orientation of the rotation trend of the secondary gear (220); The elastic element (240) includes: a sleeve (241) rotatably connected to the main gear (210); A rod (242) is inserted into the sleeve (241), and the other end of the rod (242) is rotatably connected to the connector (230); A spring (243) is provided inside the sleeve (241), and the two ends of the spring (243) are respectively connected to the sleeve (241) and the insert (242); A fixed frame (270) is connected to the end face of the main gear (210) facing the secondary gear (220), and a threaded rod (290) is slidably connected on the fixed frame (270). The threaded rod (290) is rotatably connected to the sleeve (241), and a sliding block (280) is rotatably connected inside the threaded rod (290). When the sliding block (280) rotates, it can drive the sleeve (241) to slide along the trajectory of the fixed frame (270).

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