A carving machine

Abstract

The present invention provides an engraving machine, which belongs to the technical field of mechanical processing equipment. It solves the problem that the existing engraving machine is inconvenient to repair after ensuring the processing accuracy. The engraving machine includes a frame and a processing component arranged on the frame, the frame is provided with a processing platform for positioning the workpiece and capable of rotating, a driven gear is fixed on the processing platform, the engraving machine also includes a driving gear meshing with the driven gear, a guide rail is horizontally provided below the processing platform, a driving component is slidably provided on the guide rail, the driving gear is connected to the output end of the driving component, and the frame is provided with a thrust mechanism that can make the driving component slide along the guide rail so that the driving gear is pressed against the driven gear. The engraving machine is easy to repair after ensuring the processing accuracy.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical processing equipment and relates to an engraving machine. Background Art

[0002] From the processing principle, engraving is a combination of drilling and milling, which has a wide range of applications, including woodworking engraving machines, laser engraving machines, advertising engraving machines, jade engraving machines, stone engraving machines, cylindrical engraving machines, etc. The application range of engraving machines is very wide, and even replaces manual engraving technology, laying the foundation for mass and rapid production of products. When engraving a workpiece, the engraving machine needs the cutter head to move and swing in different directions, and the workpiece also needs to rotate accordingly to achieve three-dimensional processing of the workpiece.

[0003] For example, a patent application (application number: 201310140416.9) discloses an engraving machine, including a base, a master control system and a rotary table, wherein a first rotary node is provided on the upper part of the base, a first rotary motor and a first drive system are provided in the first rotary node, the first drive system is placed vertically, the first rotary motor is meshed with the first drive system through a first gear mechanism, a first rotary arm is provided on the upper part of the first drive system, a plurality of rotary arms are sequentially connected to the end of the first rotary arm, a workpiece is positioned on the rotary table, and the rotation of the workpiece is achieved by the rotation of the rotary table, and in order to achieve the rotation of the rotary table, the means commonly used in this field is to transmit through gear meshing, that is, the active gear drives the driven gear to rotate, and then drives the rotary table to rotate, however, during the engraving process, the rotary table needs to rotate repeatedly according to the engraving pattern, and its rotation accuracy directly affects the engraving accuracy, and there is an inter-tooth gap between the active gear and the driven gear, and the inter-tooth gap will affect the transmission accuracy, and then affect the engraving accuracy.

[0004] In order to solve the problem of inter-tooth clearance, a patent application (application number: 200910071803.5) discloses a lever mechanism for reducing the backlash of a gear rack transmission, including a rack, a gear, a gear drive motor, and a reducer. A lever bracket is fixedly installed on a moving body, one end of the lever is installed on the lever bracket through a pin, the gear is installed on the output shaft of the reducer, the reducer is installed in the middle of the lever, the gear drive motor is connected to the reducer, and a through hole is provided at the other end of the lever, a screw is strung in the through hole, a lever compression spring is sleeved on the screw, the lever is fixed on the moving body, and the gear installed on the lever is pressed toward the rack through the compression spring to eliminate the inter-tooth clearance. However, the mechanism It is the cooperation of gear and rack. The rack is in the shape of a long strip. The gear can be pressed against any position of the rack. The compression spring only needs to be able to generate a component force perpendicular to the rack, that is, the position of the gear pressing and the direction of the force are relatively low. Just as the lever in the patent is hinged, the force generated by the gear on the rack is not absolutely perpendicular to the rack. However, the cooperation of two gears is different from that of a gear and a rack. If the force of the driving gear on the driven gear deviates from the center line of the driven gear, it will cause the driven gear to be unbalanced. Especially when it is used for a long time to drive a heavy workpiece to rotate, the meshing accuracy of the driving gear and the driven gear will be reduced, thereby affecting the processing accuracy.

[0005] To this end, the most likely thing that technicians in this field can think of is to directly improve the installation accuracy of the driving gear and the driven gear so that the two can mesh accurately and minimize the impact of the inter-tooth gap on the accuracy. However, improving the installation accuracy means an increase in the difficulty of disassembly and assembly. The engraving machine will generate a lot of debris and dust during the engraving process, so it needs to be disassembled and assembled regularly for inspection and cleaning. The above-mentioned disassembly and assembly process with high precision requirements makes inspection and cleaning very inconvenient. Summary of the invention

[0006] The purpose of the present invention is to solve the above problems in the prior art and to propose an engraving machine to solve the problem that the prior engraving machine is inconvenient to repair after ensuring the processing accuracy.

[0007] The object of the present invention can be achieved through the following technical solutions: an engraving machine, comprising a frame and a processing assembly arranged on the frame and having at least one cutter head, the frame is provided with a processing platform for positioning a workpiece and capable of rotating, a driven gear is fixed on the processing platform, the engraving machine also includes a driving gear meshing with the driven gear, characterized in that a guide rail is horizontally provided below the processing platform, a driving assembly is slidably provided on the guide rail, the driving gear is connected to the output end of the driving assembly, and a thrust mechanism is provided on the frame that can enable the driving assembly to slide along the guide rail so that the driving gear is pressed against the driven gear.

[0008] The workpiece is positioned on the processing platform, and the active gear on the driving assembly is meshed with the driven gear on the processing platform, thereby driving the processing platform to rotate. Combined with the movement of the processing assembly on the frame, the three-dimensional processing of the workpiece by the processing assembly is realized, wherein the guide rail is arranged under the processing platform, which can minimize the influence of debris, dust, etc. on the sliding parts to ensure the processing accuracy. At the same time, the active gear is pressed on the driven gear by the thrust of the thrust mechanism, so the tooth gap between the active gear and the driven gear can be eliminated, the transmission accuracy is ensured, and then the processing accuracy is improved. Compared with the existing method of improving the installation accuracy of the active gear and the driven gear to ensure the precise match between the two, resulting in excessively high requirements for installation accuracy during disassembly and maintenance, which affects the convenience of maintenance, the drive assembly of the present application is slidably arranged, and the active gear is pushed and pressed on the driven gear by the thrust mechanism. The thrust of the thrust mechanism can be released during disassembly, and the installation There is no need to adjust the installation position of the driving gear at all times, and it is only necessary to apply the thrust mechanism to the driving assembly. Therefore, maintenance and cleaning are more convenient. Unlike the existing gear that is pressed against the rack by an elastic member to eliminate the gap between the teeth, the rack is in the shape of a long strip, and the gear can be pressed at any position of the rack. The elastic member only needs to be able to generate a component force perpendicular to the rack, that is, the position of the gear pressing and the direction of the force are lower. In this application, two gears are meshed, and if the direction of the force of the driving gear on the driven gear deviates from the center line of the driven gear, it will cause the driven gear to be unbalanced in force, affecting the accuracy during long-term use. For this reason, the present application pre-sets a guide rail, which can accurately control the direction of the guide rail, and the guide rail accurately controls the sliding direction of the driving gear, that is, accurately controls the direction of the force of the driving gear on the driven gear. Therefore, there is no need to adjust the position of the driving gear during subsequent disassembly and maintenance, making maintenance and cleaning more convenient.

[0009] In the above-mentioned engraving machine, the processing platform includes a turntable rotatably arranged on a frame, the driven gear is located below the turntable and fixed on the lower side of the turntable, and the driving gear moves to the bottom of the turntable under the thrust of the thrust mechanism and meshes with the driven gear. A large amount of debris, dust, etc. will be generated during the processing, and meshing the driving gear and the driven gear under the turntable can avoid interference with the transmission caused by debris, dust, etc., thereby ensuring the processing accuracy, and the guide rail and the sliding arrangement of the drive assembly and the guide rail enable the driving gear located under the turntable to move to the outside of the turntable, which is convenient for maintenance and cleaning.

[0010] In the above-mentioned engraving machine, one end of the guide rail is located below the turntable, and the other end of the guide rail extends from below the turntable. One end of the guide rail is located below the turntable, which facilitates the driving gear to move below the turntable and mesh with the driven gear, and the other end of the guide rail extends from below the turntable, which facilitates the driving gear to move to the outside of the turntable for inspection and cleaning.

[0011] In the above engraving machine, the guide rail is parallel to the perpendicular line between the center line of the driving gear and the center line of the driven gear, so that the force of the driving gear on the driven gear is directed toward the center of the driven gear, so that the force on the driven gear is balanced, ensuring the processing accuracy during long-term use.

[0012] In the above engraving machine, there are two guide rails, and the two guide rails are symmetrically arranged on both sides of the vertical line connecting the center line of the driving gear and the center line of the driven gear, and the thrust mechanism is arranged between the two guide rails. The two guide rails support the driving assembly and the driving gear more symmetrically and evenly, so that the transmission accuracy after the driving gear and the driven gear are meshed is higher, thereby improving the processing accuracy.

[0013] In the above-mentioned engraving machine, a slide plate is slidably connected to the two guide rails, the above-mentioned driving assembly is arranged on the upper side of the slide plate, the above-mentioned thrust mechanism includes a thrust spring, the above-mentioned driven gear is located between the driving gear and the thrust spring, the thrust spring is parallel to the guide rail, and one end of the thrust spring acts on the driving assembly or the slide plate, and the other end acts on the frame. The slide plate stably supports the driving assembly, and the thrust spring can be one or more, which is parallel to the guide rail and can generate thrust along the length direction of the guide rail, so that the driving gear can be stably pressed against the driven gear to improve the accuracy.

[0014] In the above-mentioned engraving machine, a support plate is vertically fixed on the frame, a limit sleeve is fixed on the support plate, and the axial direction of the limit sleeve is arranged along the length direction of the guide rail, a push block is slidably arranged in the limit sleeve, and an adjusting bolt is also screwed on the support plate, the end of the adjusting bolt extends into the limit sleeve, and the other end of the thrust spring extends into the limit sleeve and abuts against the push block, and the push block abuts against the end of the adjusting bolt under the action of the thrust spring. The pressing force of the thrust spring after being pressed can be adjusted by rotating the adjusting bolt, and then the pressing force between the driving gear and the driven gear can be adjusted. Of course, this structure can also loosen the thrust spring during disassembly, which is convenient for disassembly and assembly.

[0015] In the above-mentioned engraving machine, a slide plate is slidably connected to the two guide rails, the above-mentioned driving assembly is fixed on the upper side of the slide plate, the above-mentioned thrust mechanism includes a thrust cylinder, the thrust cylinder is fixed on the frame, the above-mentioned driven gear is located between the driving gear and the thrust cylinder, the thrust cylinder is arranged in the longitudinal direction, and the piston rod of the thrust cylinder is against the driving assembly or the slide plate. The thrust cylinder is a kind of gas spring, which can generate a stable thrust on the driven gear, so as to ensure the transmission accuracy of the driving gear and the driven gear.

[0016] In the above-mentioned engraving machine, the frame includes a base frame and a mounting seat, the above-mentioned processing assembly is arranged on the base frame, the mounting seat includes two horizontally arranged mounting plates, and one mounting plate is higher than the other mounting plate, the turntable is rotatably arranged on the higher mounting plate, the guide rail and the thrust mechanism are arranged on the lower mounting plate, and one end of the two guide rails are extended under the higher mounting plate. The turntable is located at a higher position, and one end of the guide rail extends under the higher mounting plate, so that the driving assembly can move and be partially located under the higher mounting plate, thereby making the structure more compact when the driving gear and the driven gear are meshed.

[0017] In the above-mentioned engraving machine, a slewing support gear bearing is arranged on the side of the higher mounting plate, and the driven gear is an outer gear of the slewing support gear bearing. The slewing support gear bearing can withstand large axial and radial loads and overturning moments, and has an inner ring and an outer gear that can rotate relative to the inner ring. In the present application, the outer gear is fixed to the turntable to form a driven gear, making the structure more stable.

[0018] In the above-mentioned engraving machine, the mounting seat is located at the front side of the base frame, and the base frame and the mounting seat are overlapped and fixedly connected by a fixing plate. The mounting seat and the base frame are two independent components, which avoids resonance between the processing assembly and the rotating disk, and the overlapped and fixed connection by the fixing plate can reduce the transmission of vibration, and at the same time make the position between the two more stable and the precision higher.

[0019] In the above-mentioned engraving machine, the lower mounting plate is laid flat on the upper side of the front end of the chassis, and the higher mounting plate is fixed on the lower mounting plate. This structure lays a mounting plate directly flat on the chassis, making the integrity better.

[0020] In the above-mentioned engraving machine, the driving assembly includes a driving motor and a reducer, the reducer is slidably arranged on the guide rail, the driving motor is connected to the input end of the reducer, and the driving gear is fixed to the output end of the reducer. The driving motor drives the driving gear to rotate through the reducer, and the reducer and the driving motor are slidably arranged as a whole, so that the structure is more stable.

[0021] In the above-mentioned engraving machine, the upper side of the base frame is connected to a movable frame for longitudinal sliding, the upper side of the movable frame is connected to a vertical slide for vertical sliding, the upper side of the vertical slide is connected to a horizontal slide for horizontal sliding, the horizontal slide is connected to a rotating seat for rotation, and the rotation axis of the rotating seat is arranged in the horizontal direction, the processing assembly includes a processing motor, the processing motor is fixed on the rotating seat, and the tool head is installed on the processing motor. The movable frame moves in the longitudinal direction to adjust the longitudinal position of the tool head, the vertical slide moves in the vertical direction to adjust the vertical position of the tool head, the horizontal slide moves in the horizontal direction to adjust the horizontal position of the tool head, the rotating seat can make the tool head swing, and combined with the rotation of the turntable, five-dimensional three-dimensional processing of the workpiece is realized.

[0022] In the above-mentioned engraving machine, a movable frame having two columns is slidably connected to the base frame in the longitudinal direction, a crossbeam is arranged in the transverse direction on the movable frame, and the two ends of the crossbeam are slidably mounted on the two columns through sliding sleeves respectively, a cross slide is slidably connected to the crossbeam in the transverse direction, a tool holder is rotatably connected to the cross slide, and the rotation axis of the tool holder is arranged vertically, one end of the tool holder is rotatably connected to a rotating seat, and the rotation axis of the rotating seat is arranged horizontally, the processing assembly includes two processing motors, a saw disk is installed at the other end of the tool holder, and the saw disk is driven by a processing motor, the tool head is installed on another processing motor, and the other processing motor is fixed on the rotating seat. The movable frame moves longitudinally to realize the longitudinal position adjustment of the cutter head. The crossbeam cooperates with the column through two sliding sleeves, so that the crossbeam has high stability. The crossbeam moves vertically to realize the vertical position adjustment of the cutter head. The cross slide moves horizontally to realize the horizontal position adjustment of the cutter head. The tool holder can rotate, so that the cutter head or saw disk can be selected to process the workpiece. Of course, the rotation of the tool holder can also adjust the angle of the cutter head, and the rotation setting of the rotating seat can adjust the swing angle of the cutter head. Combined with the rotation of the turntable, five-dimensional three-dimensional processing of the workpiece can be realized.

[0023] In the above-mentioned engraving machine, two columns are fixed on the base frame, a crossbeam is arranged in the transverse direction between the two columns, and the two ends of the crossbeam are respectively slidably mounted on the two columns through sliding sleeves, a cross slide is connected to the cross beam in a transverse sliding manner, a longitudinal slide is connected to the cross slide in a longitudinal sliding manner, a tool holder is rotatably connected to the longitudinal slide, and the rotation axis of the tool holder is arranged vertically, one end of the tool holder is rotatably connected to a rotating seat, and the rotation axis of the rotating seat is arranged horizontally, the processing assembly includes two processing motors, a saw disc is installed at the other end of the tool holder, and the saw disc is driven by a processing motor, the tool head is installed on another processing motor, and the other processing motor is fixed on the rotating seat. The crossbeam cooperates with the column through two sliding sleeves, which makes the crossbeam have high stability. The crossbeam moves vertically to adjust the vertical position of the cutter head, the transverse slide moves horizontally to adjust the transverse position of the cutter head, and the longitudinal slide moves longitudinally to adjust the longitudinal position of the cutter head. The tool holder can rotate, so that the cutter head or saw disk can be selected to process the workpiece. Of course, the rotation of the tool holder can also adjust the angle of the cutter head, and the rotation setting of the rotating seat can adjust the swing angle of the cutter head. Combined with the rotation of the turntable, five-dimensional three-dimensional processing of the workpiece can be realized.

[0024] In the above-mentioned engraving machine, a chuck for positioning the workpiece is provided on the turntable, and the engraving machine also includes a clamping mechanism capable of pressing the workpiece onto the chuck. When the height of the workpiece is relatively high, the chuck clamps and positions the lower end of the workpiece, and the clamping mechanism can press and position the upper end of the workpiece, thereby keeping the workpiece relatively high stable and improving the processing accuracy.

[0025] In the above-mentioned engraving machine, the clamping mechanism includes a mounting platform fixed on the lateral side of the mounting seat, a plurality of vertical guide columns are fixed vertically on the mounting platform, a lifting seat is slidably mounted on the vertical guide columns, a transverse guide column is slidably penetrated on the lifting seat, a positioning block is fixed on the end of the transverse guide column, and a downward-facing top is provided on the positioning block. After the workpiece is placed on the chuck, the transverse guide column moves horizontally so that the top is opposite to the top of the workpiece, and then the lifting seat descends so that the top is pressed against the top of the workpiece to achieve positioning of the workpiece.

[0026] In the above-mentioned engraving machine, the clamping mechanism includes two mounting columns vertically fixed on the base frame, and the two mounting columns are located on the lateral sides of the mounting seat. Both mounting columns are connected with movable plates in a vertical sliding manner, and a long strip-shaped positioning frame is connected to the upper edge of one of the movable plates in a horizontal sliding manner, and the positioning frame is arranged in a horizontal direction. A downward-facing top is provided on the lower side of the positioning frame, and a positioning seat is provided on the other movable plate to support and position the end of the positioning frame when the top is aligned with the center of the turntable. When the workpiece needs to be positioned, the positioning frame is moved outward in the horizontal direction to make way. After the workpiece is hoisted and placed on the chuck, the positioning frame is moved inward in the horizontal direction, and the top is opposite to the top of the workpiece. Then the positioning frame is lowered, so that the top is pressed against the top of the workpiece to achieve positioning of the workpiece.

[0027] In the above-mentioned engraving machine, a guide seat is fixed on one of the movable plates, and the above-mentioned positioning frame is slidably arranged on the guide seat. A positioning hole is opened horizontally on the positioning seat, and a locking pin is also slidably arranged vertically on the positioning seat. A locking hole is opened on the upper side surface of the end of the positioning frame. When the top is aligned with the center of the turntable, the end of the positioning frame is inserted into the positioning hole of the positioning seat, and the locking pin can be inserted downward into the locking hole of the positioning frame. When the positioning frame moves inwardly in the horizontal direction and makes the top face the top of the workpiece, one end of the positioning frame is located in the guide seat, and the other end can be inserted into the positioning hole of the positioning seat. The positioning seat supports the end of the positioning frame, and the locking pin is inserted into the locking hole and positions the positioning frame, so that the positioning frame remains stable, and the positioning of the top to the workpiece remains stable.

[0028] Compared with the existing technology, this engraving machine has the following advantages:

[0029] 1. Since the driving assembly is set to slide, the active gear is pushed and pressed on the driven gear by the thrust mechanism. When disassembling, the thrust of the thrust mechanism only needs to be released. When installing, there is no need to adjust the installation position of the active gear. It is only necessary to act the thrust mechanism on the driving assembly. Therefore, maintenance and cleaning are more convenient.

[0030] 2. Since the present application pre-sets the guide rail, the direction of the guide rail can be accurately controlled, and the guide rail accurately controls the sliding direction of the driving gear, that is, accurately controls the direction of the force of the driving gear on the driven gear. Therefore, there is no need to adjust the position of the driving gear during the subsequent disassembly and maintenance process, making maintenance and cleaning more convenient.

[0031] 3. Since the guide rail is set below the processing platform, it can reduce the impact of debris, dust, etc. on the sliding parts as much as possible to ensure the processing accuracy. At the same time, the driving gear is pressed against the driven gear by the thrust of the thrust mechanism, so the inter-tooth gap between the driving gear and the driven gear can be eliminated, ensuring the transmission accuracy and thus improving the processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a three-dimensional structural diagram of the engraving machine.

[0033] Figure 2 It is a top view of the structure of the engraving machine.

[0034] Figure 3 yes Figure 1 A magnified view of the structure at center.

[0035] Figure 4 yes Figure 1 A magnified view of the structure at point B.

[0036] Figure 5 yes Figure 2 Enlarged view of the structure at C in the middle.

[0037] Figure 6 yes Figure 2 Structural cross-section view at DD in the middle.

[0038] Figure 7 yes Figure 6 Enlarged view of the structure at E in the middle.

[0039] Figure 8 It is a three-dimensional structural schematic diagram of the engraving machine in the third embodiment.

[0040] Fig. 9 It is a three-dimensional structural schematic diagram of the engraving machine in the fourth embodiment.

[0041] Fig.10 It is a three-dimensional structural schematic diagram of the engraving machine in the fifth embodiment.

[0042] Fig.11 It is a three-dimensional structural schematic diagram of the engraving machine in the sixth embodiment.

[0043] Fig.12 It is a three-dimensional structural schematic diagram of the engraving machine in the seventh embodiment.

[0044] Fig.13 It is a three-dimensional structural schematic diagram of the engraving machine in the eighth embodiment.

[0045] Fig.14 It is a three-dimensional structural schematic diagram of the engraving machine in the ninth embodiment.

[0046] Fig.15 It is a three-dimensional structural schematic diagram of the engraving machine in the tenth embodiment.

[0047] Fig.16 It is a three-dimensional structural schematic diagram of the engraving machine in the eleventh embodiment.

[0048] In the figure, 1, frame; 11, base frame; 111, longitudinal slide rail; 112, longitudinal motor; 113, mounting column; 12, mounting seat; 121, bottom plate; 122, mounting plate; 123, guide rail; 124, support bolt; 125, waterproof cover; 13, fixed plate; 2, mobile frame; 21, longitudinal drag plate; 22, longitudinal slider; 23, vertical slide rail; 24, vertical motor; 25, column; 26, crossbeam; 261, sleeve; 3, vertical drag plate; 31, vertical slider; 32, cross slide rail; 33, cross motor; 4, cross drag plate; 41, cross slider; 42, rotating seat; 43, steering motor; 44, tool holder; 5, processing assembly; 51, processing Motor; 52, cutter head; 53, saw disc; 6, processing platform; 61, turntable; 611, waterproof cover; 62, chuck; 63, slewing support gear bearing; 631, driven gear; 7, abutment plate; 71, limit sleeve; 72, push block; 73, adjusting bolt; 74, thrust spring; 8, reducer; 81, drive motor; 82, driving gear; 83, slide plate; 84, guide block; 9, mounting table; 91, vertical guide column; 92, lifting seat; 93, horizontal guide column; 94, positioning block; 95, top; 10, moving plate; 101, positioning seat; 102, guide seat; 103, positioning frame; 104, power motor one; 105, power motor two. DETAILED DESCRIPTION

[0049] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0050] Embodiment 1:

[0051] like Figure 1 , Figure 2 As shown, an engraving machine includes a frame 1 and a processing assembly 5. The frame 1 includes a base frame 11 and a mounting seat 12 located at the front side of the base frame 11. The base frame 11 and the mounting seat 12 are overlapped and fixedly connected through a fixing plate 13. A processing platform 6 is rotatably arranged on the mounting seat 12. The processing platform 6 is used to position the workpiece. A movable frame 2 is arranged on the base frame 11. Specifically, in combination with Figure 3As shown, a pair of longitudinal slide rails 111 are fixed in the longitudinal direction on the bottom frame 11, the mobile frame 2 is in the shape of a rectangular three-dimensional frame, and two longitudinal slide plates 21 are fixed at the bottom of the mobile frame 2, and the two longitudinal slide plates 21 are slidably connected to the two longitudinal slide rails 111 through longitudinal sliders 22 respectively. A pair of vertical slide rails 23 are fixed in the vertical direction on the front side of the mobile frame 2, and the vertical slide plates 3 are slidably connected to the two vertical slide rails 23 through vertical sliders 31. A pair of transverse slide rails 32 are fixed in the transverse direction on the front side surface of the vertical slide plates 3, and the transverse slide plates 4 are slidably connected to the two transverse slide rails 32 through transverse sliders 41. A rotating seat 42 is rotatably connected to the transverse slide plates 4, and the rotation axis of the rotating seat 42 is arranged in the transverse direction. The processing assembly 5 includes a processing motor 51 and a cutter head 52 and a saw disc 53 installed on the processing motor 51. The processing motor 51 is fixed on the rotating seat 42, wherein a longitudinal motor 112 is provided on the base frame 11, and the longitudinal motor 112 drives the moving frame 2 to move through a screw-nut assembly, and a vertical motor 24 is fixed on the moving frame 2, and the vertical motor 24 drives the vertical slide 3 to move through a screw-nut assembly, and a transverse motor 33 is fixed on the vertical slide 3, and the transverse motor 33 drives the transverse slide 4 to move through a screw-nut assembly, and a steering motor 43 is fixed on the transverse slide 4, and the output end of the steering motor 43 is connected to the rotating seat 42.

[0052] Combination Figure 4 , Figure 5 As shown, the processing platform 6 includes a horizontally arranged turntable 61 and a chuck 62 fixed at the center of the upper side of the turntable 61. The mounting seat 12 includes a bottom plate 121 and two horizontally arranged mounting plates 122. The two mounting plates 122 are both fixed on the bottom plate 121, and one mounting plate 122 is higher than the other mounting plate 122. A plurality of support bolts 124 are screwed at the edge of the bottom plate 121. The support bolts 124 are all vertically arranged, and the ends of the support bolts 124 extend out of the lower side of the bottom plate 121 to support the bottom plate 121. A slewing support gear bearing 63 is provided on the upper side of the higher mounting plate 122. The inner ring of the slewing support gear bearing 63 is fixed to the mounting plate 122. The outer gear of the slewing support gear bearing 63 is a driven gear 631. The driven gear 631 is fixed to the lower side of the turntable 61. The driven gear 631 is coaxially arranged with the turntable 61, and the outer diameter of the driven gear 631 is smaller than the outer diameter of the turntable 61. Combination Figure 6As shown, a pair of guide rails 123 are fixed on the frame 1. Specifically, the two guide rails 123 are fixed on the upper side of the lower mounting plate 122. The two guide rails 123 are arranged in the longitudinal direction, and one end of the two guide rails 123 extends under the higher mounting plate 122, that is, one end of the two guide rails 123 is located under the turntable 61, and the other end extends out from under the turntable 61. A slide plate 83 is slidably connected to the two guide rails 123 through a guide block 84. The slide plate 83 is horizontally arranged. A reducer 8 is also fixed on the upper side of the slide plate 83. A drive motor 81 is fixed to the reducer 8, and the output end of the drive motor 81 is connected to the input end of the reducer 8. A driving gear 82 is fixed to the output end of the reducer 8. The vertical line between the center line of the driving gear 82 and the center line of the driven gear 631 is arranged longitudinally, that is, the two guide rails 123 are parallel to the vertical line between the center line of the driving gear 82 and the center line of the driven gear 631, and the two guide rails 123 are symmetrically arranged on both sides of the vertical line between the center line of the driving gear 82 and the center line of the driven gear 631.

[0053] Combination Figure 7 As shown, a support plate 7 is also vertically fixed on the lower mounting plate 122, and the support plate 7 is located at the front side of the reducer 8. A thrust spring 74 is provided between the reducer 8 and the support plate 7. The thrust spring 74 is tightened between the reducer 8 and the support plate 7. Under the thrust of the thrust spring 74, the driving gear 82 is pressed against the driven gear 631, and the driving gear 82 is meshed with the driven gear 631. When the driving gear 82 is meshed with the driven gear 631, the driving gear 82 is located as a whole below the turntable 61. The thrust spring 74 is one and is located between the two guide rails 123. A limiting sleeve 71 is fixed on the abutment plate 7, and the axial direction of the limiting sleeve 71 is arranged along the length direction of the guide rail 123. A push block 72 is slidably arranged in the limiting sleeve 71. An adjusting bolt 73 is also screwed on the abutment plate 7, and the end of the adjusting bolt 73 extends into the limiting sleeve 71. The thrust spring 74 is arranged along the length direction of the guide rail 123. One end of the thrust spring 74 abuts on the reducer 8, and the other end of the thrust spring 74 extends into the limiting sleeve 71 and abuts on the push block 72. Under the action of the thrust spring 74, the push block 72 abuts against the end of the adjusting bolt 73.

[0054] Embodiment 2:

[0055] The structure of the engraving machine is basically the same as that of the first embodiment, except that the thrust mechanism includes a thrust cylinder, which is fixed on the frame 1, and the driven gear 631 is located between the driving gear 82 and the thrust cylinder. The thrust cylinder is arranged longitudinally, and the piston rod of the thrust cylinder is against the driving assembly or the slide 83.

[0056] Embodiment three:

[0057] The structure of the engraving machine is basically the same as that of the first embodiment, except that Figure 8 As shown, the base frame 11 and the mounting seat 12 are independent of each other, and the mounting seat 12 is placed on the front side of the base frame 11. The position of the mounting seat 12 relative to the base frame 11 can be adjusted, that is, the position relationship between the turntable 61 and the movable frame 2 can be pre-adjusted before processing.

[0058] Embodiment 4:

[0059] The structure of the engraving machine is basically the same as that of the first embodiment, except that Fig. 9 As shown, the base frame 11 is arranged in the longitudinal direction, and the lower mounting plate 122 is laid flat on the upper side of the front end of the base frame 11, and the higher mounting plate 122 is fixed on the lower mounting plate 122, so that the integrity is better.

[0060] Embodiment five:

[0061] The structure of the engraving machine is basically the same as that of the first embodiment, except that Fig.10 As shown, the mobile frame 2 has two columns 25, and the mobile frame 2 is also provided with a horizontal beam 26 arranged in the horizontal direction. A pair of vertical slide rails 23 are fixed on the two columns 25 in the vertical direction, and both ends of the cross beam 26 have sliding sleeves 261. The sliding sleeves 261 at both ends of the cross beam 26 are respectively slidably sleeved on the two columns 25. The cross sections of the two columns 25 and the two sliding sleeves 261 are rectangular, and the vertical slide rails 23 are located on the horizontal outer side of the columns 25. The sliding sleeves 261 are slidably matched with the vertical slide rails 23. The horizontal slide rails 32 are fixed on the upper side of the cross beam 26 in the horizontal direction, and the horizontal drag plate 4 slides. It is rotatably connected to the transverse slide rail 32, and a tool holder 44 is rotatably connected to the transverse drag plate 4, and the rotation axis of the tool holder 44 is arranged vertically. One end of the tool holder 44 is rotatably connected to a rotating seat 42, and the rotation axis of the rotating seat 42 is arranged horizontally. The processing assembly 5 includes a cutter head 52, a saw disk 53 and two processing motors 51. One processing motor 51 is fixed on the rotating seat 42 at one end of the tool holder 44, and the cutter head 52 is installed on the processing motor 51. The saw disk 53 is installed at the other end of the tool holder 44 and is driven by another processing motor 51.

[0062] Embodiment six:

[0063] The structure of the engraving machine is basically the same as that of the first embodiment, except that Fig.11As shown, two columns 25 are fixed on the frame 1, and a crossbeam 26 is arranged in the horizontal direction between the two columns 25. A pair of vertical slide rails 23 are fixed on the two columns 25 in the vertical direction, and both ends of the crossbeam 26 have sliding sleeves 261. The sliding sleeves 261 at both ends of the crossbeam 26 are respectively slidably sleeved on the two columns 25. The cross sections of the two columns 25 and the two sliding sleeves 261 are rectangular, and the vertical slide rails 23 are located on the outer side of the columns 25 in the horizontal direction. The sliding sleeves 261 and the vertical slide rails 23 are slidably matched, and the transverse slide rails 32 are transversely fixed on the upper side of the crossbeam 26, and the transverse drag plate 4 is slidably connected to the transverse slide rails 32. The longitudinal slide rails 111 are longitudinally fixed to the upper side of the crossbeam 26. It is fixed on the transverse slide 4, and is connected to the longitudinal slide 21 by sliding along the longitudinal direction on the two longitudinal slide rails 111. The tool holder 44 is rotatably connected to the longitudinal slide 21, and the rotation axis of the tool holder 44 is set vertically. One end of the tool holder 44 is rotatably connected to the rotating seat 42, and the rotation axis of the rotating seat 42 is set horizontally. The processing assembly 5 includes a cutter head 52, a saw disk 53 and two processing motors 51. One processing motor 51 is fixed on the rotating seat 42 at one end of the tool holder 44, and the cutter head 52 is installed on the processing motor 51. The saw disk 53 is installed at the other end of the tool holder 44 and is driven by another processing motor 51.

[0064] Embodiment seven:

[0065] The structure of this engraving machine is basically the same as that of the fifth embodiment, except that Fig.12 As shown, the engraving machine also includes a clamping mechanism, which includes a mounting table 9, a lifting seat 92 and a positioning block 94. The mounting table 9 is fixed to the lateral side of the mounting seat 12. Four vertical guide columns 91 are vertically fixed on the mounting table 9. The lifting seat 92 is slidably sleeved on the four vertical guide columns 91. Two lateral guide columns 93 are slidably penetrated on the lifting seat 92. The positioning block 94 is fixed to the ends of the two lateral guide columns 93. A downward-facing top 95 is provided on the positioning block 94. The lifting seat 92 and the positioning block 94 are respectively driven by their own cylinders, screw nut assemblies or gear rack assemblies. When the workpiece is placed on the chuck 62, the top 95 can be pressed against the top of the workpiece to achieve positioning of the workpiece.

[0066] Embodiment eight:

[0067] The structure of this engraving machine is basically the same as that of the sixth embodiment, except that Fig.13As shown, the engraving machine also includes a clamping mechanism, which includes a mounting table 9, a lifting seat 92 and a positioning block 94. The mounting table 9 is fixed to the lateral side of the mounting seat 12. Four vertical guide columns 91 are vertically fixed on the mounting table 9. The lifting seat 92 is slidably sleeved on the four vertical guide columns 91. Two lateral guide columns 93 are interactively penetrated along the lifting seat 92. The positioning block 94 is fixed to the ends of the two lateral guide columns 93. A downward-facing top 95 is provided on the positioning block 94. The lifting seat 92 and the positioning block 94 are respectively driven by their own cylinders, screw nut assemblies or gear rack assemblies. When the workpiece is placed on the chuck 62, the top 95 can be pressed against the top of the workpiece to achieve positioning of the workpiece.

[0068] Embodiment nine:

[0069] The structure of this engraving machine is basically the same as that of the fifth embodiment, except that Fig.14 As shown, the engraving machine also includes a clamping mechanism, which includes two mounting columns 113 vertically fixed on the base frame 11, and the two mounting columns 113 are located on the lateral sides of the mounting seat 12. The two mounting columns 113 are both connected with a movable plate 10 in a vertical sliding manner, wherein a guide seat 102 is fixed on one movable plate 10, and a positioning seat 101 is fixed on the other movable plate 10. A long strip-shaped positioning frame 103 is slidably penetrated on the guide seat 102 in a lateral sliding manner, and a downward-facing top 95 is provided on the lower side of the positioning frame 103. A positioning hole is opened in the lateral direction on the positioning seat 101. A locking pin is also provided along the vertical sliding direction, and a locking hole is opened on the upper side surface of the end of the positioning frame 103. When the top 95 is aligned with the center of the chuck 62, the end of the positioning frame 103 is inserted into the positioning hole of the positioning seat 101, and the locking pin can be inserted downward into the locking hole of the positioning frame 103. Of course, a power motor 104 is fixed on the mounting column 113, and the power motor 104 drives the movable plate 10 to move vertically through the screw nut assembly, and a power motor 2 105 is fixed on the guide seat 102, and the power motor 2 105 drives the positioning frame 103 to move horizontally through the gear rack assembly.

[0070] Embodiment ten:

[0071] The structure of this engraving machine is basically the same as that of the sixth embodiment, except that Fig.15As shown, the engraving machine also includes a clamping mechanism, which includes two mounting columns 113 vertically fixed on the base frame 11, and the two mounting columns 113 are located on the lateral sides of the mounting seat 12. The two mounting columns 113 are both connected with a movable plate 10 in a vertical sliding manner, wherein a guide seat 102 is fixed on one movable plate 10, and a positioning seat 101 is fixed on the other movable plate 10. A long strip-shaped positioning frame 103 is slidably penetrated on the guide seat 102 in a lateral sliding manner, and a downward-facing top 95 is provided on the lower side of the positioning frame 103. A positioning hole is opened in the lateral direction on the positioning seat 101. A locking pin is also provided along the vertical sliding direction, and a locking hole is opened on the upper side surface of the end of the positioning frame 103. When the top 95 is aligned with the center of the chuck 62, the end of the positioning frame 103 is inserted into the positioning hole of the positioning seat 101, and the locking pin can be inserted downward into the locking hole of the positioning frame 103. Of course, a power motor 104 is fixed on the mounting column 113, and the power motor 104 drives the movable plate 10 to move vertically through the screw nut assembly, and a power motor 2 105 is fixed on the guide seat 102, and the power motor 2 105 drives the positioning frame 103 to move horizontally through the gear rack assembly.

[0072] Embodiment eleven:

[0073] The structure of the engraving machine is basically the same as that of the tenth embodiment, except that Fig.16 As shown, a waterproof sleeve 611 is circumferentially fixed to the lower side edge of the turntable 61, the driving gear 82 and the driven gear 631 are both located in the waterproof sleeve 611, a waterproof cover 125 is fixed on the mounting plate 122, and the waterproof cover 125 is located below the waterproof sleeve 611, and the guide rail 123 and the thrust mechanism are both located in the waterproof cover 125.

[0074] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0075] Although the terms such as frame 1, base frame 11, longitudinal slide rail 111 are used more frequently in this article, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. An engraving machine, comprising a frame (1) and a processing assembly (5) arranged on the frame (1) and having at least one cutter head (52), the frame (1) being provided with a processing platform (6) for positioning a workpiece and capable of rotation, a driven gear (631) being fixed on the processing platform (6), the engraving machine further comprising a driving gear (82) meshing with the driven gear (631), characterized in that: A guide rail (123) is horizontally arranged below the processing platform (6), a driving assembly is slidably arranged on the guide rail (123), the driving gear (82) is connected to the output end of the driving assembly, and a thrust mechanism is arranged on the frame (1) so as to enable the driving assembly to slide along the guide rail (123) so that the driving gear (82) is pressed against the driven gear (631); the processing platform (6) comprises a turntable (61) rotatably arranged on the frame (1), one end of the guide rail (123) is located below the turntable (61), and the other end of the guide rail (123) extends from below the turntable (61); the thrust mechanism is located outside the turntable (61), and under the thrust of the thrust mechanism, the driving gear (82) moves to the bottom of the turntable (61) and meshes with the driven gear (631).

2. The engraving machine according to claim 1, characterized in that: The driven gear (631) is located below the rotating disk (61) and is fixed on the lower side of the rotating disk (61).

3. The engraving machine according to claim 1 or 2, characterized in that: The guide rail (123) is parallel to a vertical line connecting the center line of the driving gear (82) and the center line of the driven gear (631).

4. The engraving machine according to claim 3, characterized in that: There are two guide rails (123), and the two guide rails (123) are symmetrically arranged on both sides of a vertical line connecting the center line of the driving gear (82) and the center line of the driven gear (631), and the thrust mechanism is arranged between the two guide rails (123).

5. The engraving machine according to claim 4, characterized in that: A slide plate (83) is slidably connected to the two guide rails (123); the driving assembly is arranged on the upper side of the slide plate (83); the thrust mechanism comprises a thrust spring (74); the driven gear (631) is located between the driving gear (82) and the thrust spring (74); the thrust spring (74) is parallel to the guide rails (123); one end of the thrust spring (74) acts on the driving assembly or the slide plate (83); and the other end acts on the frame (1).

6. The engraving machine according to claim 5, characterized in that: A support plate (7) is vertically fixed on the frame (1), a limiting sleeve (71) is fixed on the support plate (7), and the axial direction of the limiting sleeve (71) is arranged along the length direction of the guide rail (123), a push block (72) is slidably arranged in the limiting sleeve (71), an adjusting bolt (73) is also screwed on the support plate (7), the end of the adjusting bolt (73) extends into the limiting sleeve (71), the other end of the thrust spring (74) extends into the limiting sleeve (71) and abuts against the push block (72), and under the action of the thrust spring (74), the push block (72) abuts against the end of the adjusting bolt (73).

7. The engraving machine according to claim 4, characterized in that: A slide plate (83) is slidably connected to the two guide rails (123), the driving assembly is fixed on the upper side of the slide plate (83), the thrust mechanism comprises a thrust cylinder, the thrust cylinder is fixed on the frame (1), the driven gear (631) is located between the driving gear (82) and the thrust cylinder, the thrust cylinder is arranged in the longitudinal direction, and the piston rod of the thrust cylinder abuts against the driving assembly or the slide plate (83).

8. The engraving machine according to claim 2, characterized in that: The frame (1) comprises a base frame (11) and a mounting seat (12), the processing assembly (5) is arranged on the base frame (11), the mounting seat (12) comprises two horizontally arranged mounting plates (122), one mounting plate (122) is higher than the other mounting plate (122), the turntable (61) is rotatably arranged on the higher mounting plate (122), the guide rail (123) and the thrust mechanism are arranged on the lower mounting plate (122), and one end of the two guide rails (123) extends below the higher mounting plate (122).

9. The engraving machine according to claim 5, characterized in that: The driving assembly comprises a driving motor (81) and a reducer (8); the reducer (8) is slidably arranged on a guide rail (123); the driving motor (81) is connected to an input end of the reducer (8); and the driving gear (82) is fixed to an output end of the reducer (8).

10. The engraving machine according to claim 8, characterized in that: The bottom frame (11) is connected to a movable frame (2) in a longitudinal sliding manner, the movable frame (2) is connected to a vertical slide plate (3) in a vertical sliding manner, the vertical slide plate (3) is connected to a horizontal slide plate (4) in a horizontal sliding manner, the horizontal slide plate (4) is rotatably connected to a rotating seat (42), and the rotating axis of the rotating seat (42) is arranged in a horizontal direction, the processing assembly (5) comprises a processing motor (51), the processing motor (51) is fixed on the rotating seat (42), and the cutter head (52) is mounted on the processing motor (51).

11. The engraving machine according to claim 8, characterized in that: A movable frame (2) having two upright posts (25) is slidably connected to the bottom frame (11) in the longitudinal direction, a crossbeam (26) arranged in the transverse direction is provided on the movable frame (2), and two ends of the crossbeam (26) are respectively slidably sleeved on the two upright posts (25) through sliding sleeves (261), a cross carriage (4) is slidably connected to the crossbeam (26) in the transverse direction, a tool holder (44) is rotatably connected to the cross carriage (4), and a rotation axis of the tool holder (44) is arranged in the vertical direction, One end of the tool holder (44) is rotatably connected to a rotating seat (42), and the rotation axis of the rotating seat (42) is arranged horizontally. The processing assembly (5) includes two processing motors (51). A saw disk (53) is installed at the other end of the tool holder (44), and the saw disk (53) is driven by a processing motor (51). The tool head (52) is installed on another processing motor (51), and the other processing motor (51) is fixed on the rotating seat (42).

12. The engraving machine according to claim 8, characterized in that: Two columns (25) are fixed on the base frame (11), a crossbeam (26) is arranged in the transverse direction between the two columns (25), and the two ends of the crossbeam (26) are respectively slidably sleeved on the two columns (25) through sliding sleeves (261), a cross carriage (4) is slidably connected to the crossbeam (26) in the transverse direction, a longitudinal carriage (21) is slidably connected to the cross carriage (4) in the longitudinal direction, a tool holder (44) is rotatably connected to the longitudinal carriage (21), and the rotation axis of the tool holder (44) is The line is arranged vertically, one end of the tool holder (44) is rotatably connected to the rotating seat (42), and the rotation axis center line of the rotating seat (42) is arranged horizontally, the processing assembly (5) includes two processing motors (51), the other end of the tool holder (44) is installed with a saw disk (53), and the saw disk (53) is driven by a processing motor (51), the tool head (52) is installed on the other processing motor (51), and the other processing motor (51) is fixed on the rotating seat (42).

13. The engraving machine according to claim 10, 11 or 12, characterized in that: The rotating disk (61) is provided with a chuck (62) for positioning the workpiece, and the engraving machine also includes a clamping mechanism capable of pressing the workpiece onto the chuck (62).

14. The engraving machine according to claim 13, characterized in that: The clamping mechanism comprises a mounting platform (9) fixed to the lateral side of the mounting seat (12), a plurality of vertical guide columns (91) being fixed vertically on the mounting platform (9), the vertical guide columns (91) being slidably arranged on a lifting seat (92), a lateral guide column (93) being slidably penetrated on the lifting seat (92), a positioning block (94) being fixed at the end of the lateral guide column (93), and a downwardly facing top point (95) being provided on the positioning block (94).

15. The engraving machine according to claim 13, characterized in that: The clamping mechanism comprises two mounting posts (113) vertically fixed on the base frame (11), the two mounting posts (113) being located on the lateral sides of the mounting seat (12), and the two mounting posts (113) are both connected to a movable plate (10) in a vertical sliding manner, and one of the movable plates (10) is connected to a long strip-shaped positioning frame (103) in a horizontal sliding manner, and the positioning frame (103) is arranged in a horizontal direction, and a downward-facing top (95) is provided on the lower side of the positioning frame (103), and a positioning seat (101) is provided on the other movable plate (10) for supporting and positioning the end of the positioning frame (103) when the top (95) is aligned with the center of the turntable (61).

16. The engraving machine according to claim 15, characterized in that: A guide seat (102) is fixed on one of the movable plates (10), and the positioning frame (103) is slidably arranged on the guide seat (102). A positioning hole is horizontally provided on the positioning seat (101), and a locking pin is also vertically slidably arranged on the positioning seat (101). A locking hole is provided on the upper side surface of the end of the positioning frame (103). When the top (95) is aligned with the center of the turntable (61), the end of the positioning frame (103) is inserted into the positioning hole of the positioning seat (101), and the locking pin can be inserted downward into the locking hole of the positioning frame (103).

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