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 processing components of the existing engraving machine have low stability and processing accuracy under a large moving stroke. The engraving machine includes a frame, a crossbeam horizontally arranged on the frame, and a processing component with at least one cutter head. A guide sleeve is slidably arranged on the crossbeam in the horizontal direction, a guide column is penetrated in the guide sleeve in the vertical direction, a guide rail is fixed on the guide column in the length direction, a guide block is fixed on the guide sleeve, the guide rail and the guide block are slidably matched, and the processing component is arranged at the lower end of the guide column. The processing component of the engraving machine has high stability and processing accuracy under a large moving stroke.

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 kind of drilling and milling combined processing, 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 engraving machine has a very wide range of applications, and even replaced the manual engraving technology, laying the foundation for the mass and rapid production of products. When engraving the workpiece, the engraving machine needs the cutter head to move and swing in different directions to achieve three-dimensional processing of the workpiece. Usually, the longitudinal adjustment is achieved by the movement of the crossbeam or the workpiece, the lateral adjustment is achieved by the movement of the cross carriage, and the height adjustment is achieved by the movement of the vertical carriage or the workpiece. Since the cross carriage can be supported by the crossbeam during the movement, the vertical carriage will not be supported by the crossbeam after the movement stroke is large, resulting in instability of the processing component and low processing accuracy. Therefore, the movement stroke of the vertical carriage is usually small. In order to fully process the workpiece with a high height, the technicians in this field think of moving the workpiece vertically or moving the crossbeam vertically, so that the carriage connected to the processing component always backs against the crossbeam and is supported by the crossbeam to solve the problem of small vertical movement stroke or low processing accuracy of the processing component.

[0003] For example, a Chinese utility model patent application (application number: 201520770448.1) discloses an engraving machine, in which a machine bed frame includes two sets of parallel support plates, a crossbeam is installed above the two sets of support plates, the crossbeam is slidably matched with the two sets of support plates, an engraving device is installed on the crossbeam, the engraving device is slidably matched with the crossbeam, and a lifting device for lifting a vehicle body is also provided below the engraving device. The lifting device consists of a rapid lifting structure and a fine-tuning structure. After the vehicle body is in place, the rapid lifting structure lifts the vehicle body until the wheels are suspended, and the fine-tuning structure adjusts the height of the vehicle body until the table top is in a horizontal state, that is, the height position of the workpiece is adjusted by the lifting device to cooperate with the processing of the processing assembly. Another example is the engraving machine disclosed in the Chinese utility model patent application (application number: 201720765693.2), in which a first slide rail is provided with a first slider, a lifting rod is connected to the top of the first slider, a first driving motor is installed on one side of the lifting rod, a cross plate is provided at the top of the lifting rod, a second slide rail is provided on one side of the cross plate, a second slide rail is connected to the second slider, a mounting box is connected to one side of the second slider, a second driving motor is installed on one side of the mounting box, a through hole is provided on the other side of the mounting box, a connecting rod is installed in the through hole, a fixing ring is provided at one end of the connecting rod, a cutter head is installed in the fixing ring, that is, the vertical movement stroke of the cutter head is increased by the vertical movement of the cross beam, however, both the workpiece and the cross beam are heavy, and the above-mentioned methods of vertically moving the workpiece or vertically moving the cross beam are laborious, and moving heavy objects also leads to low movement accuracy, thereby affecting the machining accuracy. Summary of the invention

[0004] 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 problems of low stability and processing accuracy of the processing components of the prior engraving machine under a large moving stroke.

[0005] The objective of the present invention can be achieved through the following technical scheme: an engraving machine, comprising a frame, a crossbeam horizontally arranged on the frame and a processing assembly having at least one tool head, characterized in that a guide sleeve is slidably arranged on the crossbeam in a horizontal direction, a guide column is penetrated in the guide sleeve in a vertical direction, a guide rail is fixed on the guide column in a length direction, a guide block is fixed on the guide sleeve, the guide rail and the guide block are slidably matched, and the processing assembly is arranged at the lower end of the guide column.

[0006] The crossbeam moves in the horizontal direction to adjust the horizontal position of the processing component, and the guide column moves vertically to adjust the height position of the processing component, so that the processing component can perform three-dimensional processing on the workpiece, wherein the processing component is located at the lower end of the guide column, and the guide column has a certain length, so the processing component has a large stroke in the vertical direction, and the processing component will be subjected to a large reaction force during the processing. For this reason, the present application adopts a structural setting in which the guide sleeve embraces the guide column, so that the guide column is positioned by the guide sleeve in any horizontal direction, thereby making the processing component have a large stroke, and can still maintain sufficient stability and processing accuracy when it is far away from the guide sleeve. At the same time, the sliding cooperation between the guide rail and the guide block makes the movement of the guide column more stable, and the accuracy of the moving stroke is also higher, thereby further improving the processing accuracy.

[0007] In the above-mentioned engraving machine, the crossbeam is arranged on the frame in a longitudinal sliding manner. The longitudinal position adjustment of the cutter head is achieved through the longitudinal movement of the crossbeam.

[0008] In the above-mentioned engraving machine, the cross-sections of the guide sleeve and the guide column are both rectangular, and at least two inner side surfaces of the guide sleeve and at least two outer side surfaces of the guide column are respectively slidably matched through the above-mentioned guide rails and guide blocks. The guide column and the guide sleeve are guided by multiple surfaces, so that the guide column is fully positioned to ensure stability. The guide member can not only transmit the positioning force of the guide sleeve to the guide column, but also make the movement of the guide column smoother and more accurate.

[0009] In the above-mentioned engraving machine, the guide sleeve includes a transverse slide, two side plates and an end plate, the transverse slide is connected to the cross beam in a transverse sliding manner, the two side plates are vertically fixed on the transverse slide, the end plate is fixed on the two side plates, and the transverse slide, the two side plates and the end plate surround the above-mentioned guide sleeve, and the guide column is a hollow structure. The transverse slide is used as a component of the guide sleeve to simplify the structure and reduce the weight of the guide sleeve. Similarly, making the guide column into a hollow structure can also reduce its weight, thereby improving the movement accuracy and processing accuracy. Of course, the transverse slide can also be slidably set on the cross beam, and the guide sleeve adopts an integral structure and fixes the guide sleeve to the transverse slide.

[0010] In the above-mentioned engraving machine, the above-mentioned guide blocks are fixed on the inner side surfaces of the two side panels, the above-mentioned guide rails are fixed on the side surfaces of the guide column, and the guide rails on both sides of the guide column are slidably connected with the guide blocks on the two side panels respectively. The guide blocks on both sides cooperate with the guide rails, so that the guide column is positioned in the lateral direction to withstand the lateral force during the processing, thereby ensuring stability and processing accuracy.

[0011] In the above-mentioned engraving machine, the above-mentioned guide block is fixed on the inner side of the end plate, the above-mentioned guide rail is fixed on the front side of the guide column, and the guide rail on the front side of the guide column is slidably matched with the guide block on the end plate. The guide block on the front side cooperates with the guide rail, so that the guide column is positioned in the front-to-back direction to withstand the force in the front-to-back direction during the processing, thereby ensuring stability and processing accuracy.

[0012] In the above-mentioned engraving machine, a plurality of support plates are horizontally fixed on the front side of the transverse drag plate, and the plurality of support plates are arranged vertically. The two side edges of the support plates are respectively fixed against the inner side surfaces of the two side plates, and the outer side surfaces of the two side plates are provided with a plurality of reinforcing ribs. During the processing of the processing component, the guide sleeve will be subjected to a large reaction force. The inner side of the guide sleeve is supported by the support plate, and the outer side of the wire sleeve is processed by the reinforcing ribs to improve the structural strength of the guide sleeve, thereby ensuring the overall stability.

[0013] In the above-mentioned engraving machine, the frame includes a rectangular frame-shaped base frame and two support beams fixed on the base frame through a number of columns, the two ends of the cross beam are respectively slidably connected to the two support beams, and the base frame is provided with a number of adjustment mechanisms for supporting the base frame and adjusting the height of the base frame. The support beam is supported and fixed by the columns, so that the cross beam has a greater height, and thus a larger space under the cross beam is provided for the three-dimensional translation of the processing assembly, and the overall height of the frame can be adjusted by the adjustment mechanism, so that it is suitable for workpieces of different heights, and by combining the larger vertical movement stroke of the guide column, the applicability is better.

[0014] In the above-mentioned engraving machine, the adjustment mechanism includes a cylindrical support seat, a screw sleeve is fixed on the inner circumference of the support seat, a screw rod is rotatably connected to the base frame, and the screw rod is vertically arranged, the lower end of the screw rod is screwed in the screw sleeve, and the frame is provided with an adjustment motor that can drive a plurality of screw rods to rotate synchronously. The adjustment motor drives a plurality of screw rods to rotate synchronously, and under the support of the support seat, the adjustment motor and the screw rod are lifted and lowered together with the frame, and after being adjusted in place, the screw rod and the screw sleeve can self-lock, thereby locking the height of the frame.

[0015] In the above-mentioned engraving machine, the above-mentioned screw rods are provided at the four corners of the base frame, the lateral sides of the base frame are rotatably connected with transmission rods, and the transmission rods are arranged in the front-back direction, worms are fixed at both ends of the transmission rods, worm wheels are fixed at the upper ends of the screws, and the worms at both ends of the transmission rods are respectively meshed with the worm wheels on the two screws on the same side, pulleys are fixed at the rear ends of the two transmission rods, and transmission belts are sleeved on the two pulleys, and the motor shaft of the adjustment motor is connected to one of the transmission rods. The adjustment motor drives one of the transmission rods to rotate, and the transmission rod drives another transmission rod to rotate synchronously through the transmission belt and pulley, and the two transmission rods drive the four screws to rotate synchronously through the worm wheels and worms, which have good synchronization, thereby ensuring the stability of the frame.

[0016] In the above-mentioned engraving machine, mounting plates are fixed at the four corners of the base frame, the screw rod is rotatably connected to the mounting plate, a sliding sleeve is vertically fixed on the lower side of the mounting plate, the sliding sleeve is sleeved on the support seat, and the sliding sleeve and the support seat are slidably matched. The sliding sleeve and the support seat are slidably matched, thereby playing a guiding role, making the connection between the support seat and the frame more stable.

[0017] In the above engraving machine, the adjustment mechanism includes a plurality of oil cylinders, which are vertically arranged, and the piston rods of the plurality of oil cylinders are vertically upward and fixedly connected to the bottom of the chassis. The height adjustment of the chassis is achieved by synchronously extending and retracting the piston rods of the plurality of oil cylinders.

[0018] In the above-mentioned engraving machine, a vertical driving member capable of driving the guide column to move up and down is further provided between the guide sleeve and the guide column, and the vertical driving member includes a screw nut mechanism, a gear rack mechanism or a cylinder. The vertical driving member drives the guide column to move up and down to adjust the height position of the processing component.

[0019] In the above-mentioned engraving machine, the vertical driving member is a screw-nut mechanism, which includes a vertical nut fixed on the inner side of the guide sleeve, a vertical screw is connected to the rear side of the guide column along the vertical rotation, the vertical screw is screwed with the vertical nut, a vertical motor is fixed to the top of the guide column, and the vertical motor is connected to the vertical screw. Since the guide column is positioned by the guide sleeve and has high stability, the vertical motor as a power output source is directly fixed to the upper end of the guide column, and it rises and falls with the guide column together with the vertical screw, thereby ensuring stability.

[0020] In the above-mentioned engraving machine, the lower end of the guide column is rotatably connected to a rotating seat, the rotation axis of the rotating seat is arranged in the vertical direction, the processing assembly includes a processing motor, the processing motor is rotatably connected to the rotating seat, and the rotation axis of the processing motor is arranged in the horizontal direction, and the tool head is installed on the processing motor. The horizontal direction of the tool head is adjusted by the rotating seat, and the vertical direction of the tool head is adjusted by the rotation of the processing motor itself, so as to perform three-dimensional processing on the workpiece.

[0021] In the above-mentioned engraving machine, the two support beams are arranged along the front-back direction, longitudinal slide rails are fixed on the two support beams along the front-back direction, the two ends of the cross beam are respectively slidably connected to the longitudinal slide rails on the two support beams, a transverse slide rail is fixed on the cross beam in the transverse direction, and the guide sleeve is slidably connected to the transverse slide rail. The longitudinal movement of the cross beam realizes the longitudinal position adjustment of the cutter head, the transverse movement of the transverse drag plate realizes the transverse position adjustment of the cutter head, and the vertical movement of the guide column realizes the height position adjustment of the cutter head. Combined with the rotation of the rotating seat and the processing motor, the five-dimensional movement of the cutter head is realized.

[0022] Compared with the existing technology, this engraving machine has the following advantages:

[0023] 1. Due to the structural setting of the guide sleeve holding the guide column, the guide column is positioned by the guide sleeve in any horizontal direction, so that the processing component has a larger stroke and can still maintain sufficient stability and processing accuracy when it is far away from the guide sleeve.

[0024] 2. Since the guide sleeve is combined with guide blocks at different positions, the guide column can be positioned in different directions, thereby ensuring the stability and accuracy of the processing components during processing.

[0025] 3. Since the base frame is also provided with a plurality of adjustment mechanisms for supporting the base frame and adjusting the base frame height, the overall height of the frame can be adjusted through the adjustment mechanism, so that it is suitable for workpieces of different heights. By combining the larger vertical movement stroke of the guide column, the applicability is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional structural diagram of the engraving machine.

[0027] Figure 2 It is a top view of the structure of the engraving machine.

[0028] Figure 3 yes Figure 2 Structural cross-section view at AA in the middle.

[0029] Figure 4 yes Figure 1 A magnified view of the structure at point B.

[0030] Figure 5 yes Figure 2 Enlarged view of the structure at C in the middle.

[0031] Figure 6 yes Figure 3 Enlarged view of the structure at D in the middle.

[0032] Figure 7 yes Figure 2 Local structural cross-sectional view at EE in the middle.

[0033] Figure 8 yes Figure 1 Enlarged view of the structure at F in the middle.

[0034] Fig. 9 yes Figure 2 Partial structural cross-sectional view at GG in the middle.

[0035] Fig.10 It is a three-dimensional structural schematic diagram of the engraving machine in the second embodiment.

[0036] In the figure, 1, frame; 11, bottom frame; 111, mounting plate; 12, column; 13, support beam; 131, longitudinal slide rail; 2, cross beam; 21, transverse slide rail; 22, support; 221, longitudinal slider; 3, guide sleeve; 31, transverse drag plate; 311, vertical nut; 312, transverse slider; 32, side plate; 33, end plate; 34, support plate; 35, reinforcement rib; 36, guide block; 4, guide column; 41, guide rail ; 42. Vertical screw; 43. Vertical motor; 44. Rotating seat; 45. Horizontal steering motor; 46. Vertical steering motor; 5. Processing assembly; 51. Processing motor; 52. Cutter head; 6. Adjusting mechanism; 61. Support seat; 62. Screw sleeve; 63. Screw; 631. Worm gear; 64. Transmission rod; 641. Worm; 642. Pulley; 643. Transmission belt; 65. Adjusting motor; 66. Sleeve; 67. Cylinder. DETAILED DESCRIPTION

[0037] 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.

[0038] Embodiment 1:

[0039] like Figure 1 As shown, an engraving machine includes a frame 1, a crossbeam 2, a guide sleeve 3, a guide column 4 and a processing assembly 5. The frame 1 includes a base frame 11 and two support beams 13. The base frame 11 is in a rectangular frame shape. A plurality of columns 12 are vertically fixed on the base frame 11. The two support beams 13 are fixed to the top of the columns 12, so that the two support beams 13 are horizontally arranged along the longitudinal direction, and the two support beams 13 have the same height. There is a space for placing a workpiece between the two support beams 13. Figure 2 , Figure 3 As shown, a pair of longitudinal slide rails 131 are fixed in the longitudinal direction on the upper side surfaces of the two support beams 13, and both ends of the cross beam 2 have downwardly facing supports 22, and longitudinal sliders 221 are fixed at the bottom of the supports 22, and the two supports 22 are slidably connected to the longitudinal slide rails 131 of the two support beams 13 through the longitudinal sliders 221. The cross beam 2 is horizontally arranged in the transverse direction, and a pair of transverse slide rails 21 are fixed in the transverse direction on the front side surface of the cross beam 2. A transverse slider 312 is fixed on the guide sleeve 3, and the transverse slider 312 is slidably connected to the transverse slide rail 21. The center line of the guide sleeve 3 is arranged in the vertical direction, and the guide column 4 is vertically inserted into the guide sleeve 3, and the guide column 4 and the guide sleeve 3 are slidably matched. A rotating seat 44 is rotatably connected to the lower end of the guide column 4, and the rotation axis center line of the rotating seat 44 is arranged in the vertical direction. The processing assembly 5 includes a processing motor 51 and a cutter head 52. The processing motor 51 and the cutter head 52 are provided in the processing motor 51. 51 is rotatably connected to the rotating seat 44, and the rotation axis of the processing motor 51 is set in the horizontal direction. The cutter head 52 is installed on the processing motor 51. The crossbeam 2 and the guide sleeve 3 are driven by their own motors and screw nuts. A horizontal steering motor 45 is fixed inside the lower end of the guide column 4. The horizontal steering motor 45 drives the rotating seat 44 to rotate through a reducer. A vertical steering motor 46 is fixed on the rotating seat 44. The vertical steering motor 46 drives the processing motor 51 to swing through pulley transmission, gear transmission, etc.

[0040] Specifically, combined Figure 4 , Figure 5 As shown, the cross section of the guide sleeve 3 is rectangular, and includes a transverse slide 31, two side plates 32 and an end plate 33. The transverse slider 312 is fixed on the rear side of the transverse slide 31, and the two side plates 32 are vertically fixed on the front side of the transverse slide 31, while the end plate 33 is fixed on the front side edges of the two side plates 32. That is, the transverse slide 31, the two side plates 32 and the end portions form the guide sleeve 3, and three support plates 34 are horizontally fixed on the front side of the transverse slide 31, and the three support plates 34 are arranged vertically. The two side edges of the support plates 34 are respectively fixed against the inner side surfaces of the two side plates 32, so as to support the two side plates 32. There are also a plurality of vertically arranged reinforcing ribs 35 on the outer side surfaces of the two side plates 32, and the length direction of the reinforcing ribs 35 is arranged along the front-to-back direction. Combined with Figure 6 , Figure 7As shown, the guide column 4 has a hollow structure, and guide rails 41 are fixed on the side surfaces on both sides of the guide column 4. The guide rails 41 are arranged in the vertical direction, and the two ends of the guide rails 41 extend to the two ends of the guide column 4 respectively. Three guide blocks 36 are fixed on the inner side surfaces of the two side plates 32, and the three guide blocks 36 on the same side plate 32 are arranged vertically. The guide rails 41 on both sides of the guide column 4 are respectively slidably matched with the guide blocks 36 on the two side plates 32. Two guide rails 41 are fixed on the front side surface of the guide column 4. The two guide rails 41 are arranged in the vertical direction, and the two ends of the guide rails 41 extend to the two ends of the guide column 4 respectively. Two guide blocks 36 are fixed on the inner side surface of the end plate 33, and the two guide rails 41 on the front side surface of the guide column 4 are respectively slidably matched with the two guide blocks 36 on the end plate 33. A screw-nut mechanism is also provided between the guide sleeve 3 and the guide column 4, and the screw-nut mechanism includes a vertical nut 311 fixed on the inner side surface of the guide sleeve 3, and a vertical screw 42 is vertically rotatably connected on the rear side surface of the guide column 4, and the vertical screw 42 is threadedly connected to the vertical nut 311, and a vertical motor 43 is fixed to the top of the guide column 4, and the vertical motor 43 is connected to the vertical screw 42.

[0041] Combination Figure 8 , Fig. 9 As shown, the four corners of the base frame 11 are provided with an adjustment mechanism 6 capable of adjusting the height of the base frame 11. Specifically, the adjustment mechanism 6 includes a cylindrical support seat 61. The four corners of the base frame 11 are horizontally fixed with a mounting plate 111. A sliding sleeve 66 is vertically fixed on the lower side of the mounting plate 111. The sliding sleeve 66 is sleeved on the support seat 61, and the sliding sleeve 66 and the support seat 61 are slidably matched. A screw sleeve 62 is fixed on the inner circumference of the support seat 61. A screw rod 63 is rotatably connected to the mounting plate 111, and the screw rod 63 is vertically arranged. The lower end of the screw rod 63 extends into the support seat 61 and is engaged with the screw sleeve 62. The two screw rods 63 are screwed together, and a worm gear 631 is fixed to the upper end of each screw rod 63. Transmission rods 64 are rotatably connected to both lateral sides of the base frame 11, and the transmission rods 64 are arranged along the front-rear direction. Worms 641 are fixed to both ends of the transmission rod 64, and the worms 641 at both ends of the transmission rod 64 are respectively meshed with the worm gears 631 on the two screw rods 63 on the same side. Pulleys 642 are fixed to the rear ends of the two transmission rods 64, and transmission belts 643 are sleeved on the two pulleys 642. An adjusting motor 65 is fixed to a mounting plate 111, and the motor shaft of the adjusting motor 65 is connected to one of the transmission rods 64.

[0042] Embodiment 2:

[0043] The structure of the engraving machine is basically the same as that of the first embodiment, except that Fig.10 As shown, the adjustment mechanism 6 includes four oil cylinders 67 , which are vertically arranged. The four oil cylinders 67 are respectively located at four corners of the base frame 11 , and the piston rods of the oil cylinders 67 are oriented toward and fixedly connected to the mounting plate 111 .

[0044] Embodiment three:

[0045] The structure of the engraving machine is basically the same as that of the first embodiment, except that the frame 1 includes two columns, which are arranged in the transverse direction, and the two ends of the beam 2 are respectively fixed to the top of the two columns. A base is provided between the two columns, and the base is located below the beam 2. A longitudinal slide rail 131 is fixed in the longitudinal direction on the base, and a processing platform is slidably connected to the longitudinal slide rail 131. The processing platform is horizontally arranged for positioning the workpiece. The processing platform is driven by a screw nut assembly or a gear rack assembly, and the workpiece is driven to move in the longitudinal direction by the processing platform. At the same time, combined with the transverse movement of the guide sleeve 3 and the vertical movement of the guide column 4, the three-dimensional translation of the tool head 52 relative to the workpiece is realized. Of course, there can be multiple pairs of longitudinal slide rails 131, so that there are multiple processing platforms and they are arranged in the transverse direction.

[0046] 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.

[0047] Although the terms such as frame 1, chassis 11, and mounting plate 111 are used more frequently in this document, 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), a crossbeam (2) horizontally arranged on the frame (1), and a processing assembly (5) having at least one tool head (52), characterized in that: A guide sleeve (3) is slidably provided on the cross beam (2) in the horizontal direction, a guide column (4) is penetrated in the guide sleeve (3) in the vertical direction, a guide rail (41) is fixed on the guide column (4) in the length direction, a guide block (36) is fixed on the guide sleeve (3), the guide rail (41) and the guide block (36) are slidably matched, and the processing assembly (5) is arranged at the lower end of the guide column (4); the guide sleeve (3) comprises a transverse slide plate (31), two side plates (32) and an end plate (33), the transverse slide plate (31) is slidably connected to the cross beam (2) in the transverse direction, the two side plates (32) are vertically fixed on the transverse slide plate (31), and the end plate (33) is fixed On the two side plates (32), the transverse drag plate (31), the two side plates (32) and the end plate (33) form the guide sleeve (3), the guide blocks (36) are fixed on the inner side surfaces of the two side plates (32), the guide rails (41) are fixed on the two side surfaces of the guide column (4), and the guide rails (41) on both sides of the guide column (4) are respectively slidably connected to the guide blocks (36) on the two side plates (32), the guide block (36) is fixed on the inner side surface of the end plate (33), the guide rail (41) is fixed on the front side surface of the guide column (4), and the guide rail (41) on the front side of the guide column (4) is slidably matched with the guide block (36) on the end plate (33).

2. The engraving machine according to claim 1, characterized in that: The crossbeam (2) is slidably arranged on the frame (1) in the longitudinal direction.

3. The engraving machine according to claim 1, characterized in that: A plurality of support plates (34) are horizontally fixed on the front side of the transverse drag plate (31). The plurality of support plates (34) are arranged vertically. The two side edges of the support plates (34) are respectively abutted and fixed against the inner side surfaces of the two side plates (32). The outer side surfaces of the two side plates (32) are provided with a plurality of reinforcing ribs (35).

4. The engraving machine according to claim 1 or 2, characterized in that: The frame (1) comprises a rectangular frame-shaped base frame (11) and two support beams (13) fixed to the base frame (11) via a plurality of uprights (12); the two ends of the cross beam (2) are respectively slidably connected to the two support beams (13); and the base frame (11) is provided with a plurality of adjustment mechanisms (6) for supporting the base frame (11) and being capable of adjusting the height of the base frame (11).

5. The engraving machine according to claim 4, characterized in that: The adjustment mechanism (6) comprises a cylindrical support seat (61), a screw sleeve (62) is fixed on the inner circumference of the support seat (61), a screw rod (63) is rotatably connected to the base frame (11), and the screw rod (63) is vertically arranged, and the lower end of the screw rod (63) is screwed into the screw sleeve (62), and the frame (1) is provided with an adjustment motor (65) capable of driving a plurality of screw rods (63) to rotate synchronously.

6. The engraving machine according to claim 5, characterized in that: The screw rods (63) are provided at the four corners of the base frame (11), and transmission rods (64) are rotatably connected to the two lateral sides of the base frame (11), and the transmission rods (64) are arranged in the front-rear direction. Worms (641) are fixed at both ends of the transmission rod (64), and worm wheels (631) are fixed at the upper ends of the screw rods (63), and the worms (641) at both ends of the transmission rod (64) are respectively meshed with the worm wheels (631) on the two screw rods (63) on the same side. Pulleys (642) are fixed at the rear ends of the two transmission rods (64), and transmission belts (643) are sleeved on the two pulleys (642). The motor shaft of the regulating motor (65) is connected to one of the transmission rods (64).

7. The engraving machine according to claim 5, characterized in that: A mounting plate (111) is fixed at each of the four corners of the base frame (11), the screw rod (63) is rotatably connected to the mounting plate (111), a sliding sleeve (66) is vertically fixed on the lower side of the mounting plate (111), the sliding sleeve (66) is sleeved on the support seat (61), and the sliding sleeve (66) and the support seat (61) are slidably matched.

8. The engraving machine according to claim 4, characterized in that: The adjustment mechanism (6) comprises a plurality of oil cylinders (67) which are arranged vertically, and the piston rods of the plurality of oil cylinders (67) face vertically upward and are fixedly connected to the bottom of the base frame (11).

9. The engraving machine according to claim 1 or 2, characterized in that: A vertical driving member capable of driving the guide column (4) to move up and down is also provided between the guide sleeve (3) and the guide column (4), and the vertical driving member comprises a screw nut mechanism, a gear rack mechanism or a cylinder.

10. The engraving machine according to claim 9, characterized in that: The vertical driving member is a screw-nut mechanism, which comprises a vertical nut (311) fixed on the inner side of the guide sleeve (3); a vertical screw (42) is connected to the rear side of the guide column (4) for vertical rotation; the vertical screw (42) is threadedly connected to the vertical nut (311); a vertical motor (43) is fixed to the top of the guide column (4), and the vertical motor (43) is connected to the vertical screw (42).

11. The engraving machine according to claim 1 or 2, characterized in that: The lower end of the guide column (4) is rotatably connected to a rotating seat (44), and the rotation axis of the rotating seat (44) is arranged in the vertical direction. The processing assembly (5) comprises a processing motor (51), and the processing motor (51) is rotatably connected to the rotating seat (44), and the rotation axis of the processing motor (51) is arranged in the horizontal direction. The tool head (52) is mounted on the processing motor (51).

12. The engraving machine according to claim 4, characterized in that: The two support beams (13) are both arranged along the front-rear direction, and longitudinal slide rails (131) are fixed on the two support beams (13) along the front-rear direction. The two ends of the cross beam (2) are respectively slidably connected to the longitudinal slide rails (131) on the two support beams (13), and a transverse slide rail (21) is fixed on the cross beam (2) in the transverse direction. The guide sleeve (3) is slidably connected to the transverse slide rail (21).

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