CN210026852U - Engraving machine - Google Patents

Abstract

The utility model provides an engraving machine belongs to machining equipment technical field. It has solved the lower problem of stability and machining precision of the processing subassembly of current engraver under great removal stroke. This engraver, including frame, the crossbeam of level setting in the frame and the processing subassembly that has at least one tool bit, slide along the horizontal direction on the crossbeam and be provided with the uide bushing, wear to be equipped with the guide post along vertical direction in the uide bushing, be fixed with the guide rail along length direction on the guide post, be fixed with the guide block on the uide bushing, guide rail and guide block sliding fit, processing subassembly setting is at the lower extreme of guide post. The processing assembly of the engraving machine has higher stability and processing precision under larger moving stroke.

Description

Engraving machine

Technical Field

The utility model belongs to the technical field of machining equipment, a engraver is related to.

Background

The engraving is a drilling and milling combined machining in principle, has wide application range, comprises a woodworking engraving machine, a laser engraving machine, an advertisement engraving machine, a jade engraving machine, a stone engraving machine, a cylindrical engraving machine and the like, has very wide application range, even replaces a manual engraving technology, and lays a foundation for the mass rapid production of products. When the carving machine carves a workpiece, the cutter head needs to move and swing in different directions to realize the three-dimensional processing of the workpiece, the longitudinal adjustment is usually realized through the movement of a cross beam or the workpiece, the transverse adjustment is realized through the movement of the transverse carriage, the height adjustment is realized through the movement of the vertical carriage or the workpiece, because the transverse planker can be supported by the cross beam in the moving process, but the transverse planker cannot be supported by the cross beam after the vertical planker has a large moving stroke, the processing assembly is unstable, the processing precision is low, the moving stroke of the vertical planker is usually small, in order to perform overall processing on a workpiece with a high height, a person skilled in the art may think of moving the workpiece vertically or moving the beam vertically, the planker connected with the machining assembly always leans against the cross beam to obtain the support of the cross beam, so that the problem that the vertical movement stroke of the machining assembly is small or the machining precision is low is solved.

The utility model discloses an engraver as chinese utility model patent application (application number: 201520770448.1), the lathe frame of engraver includes two sets of parallel backup pads, and the crossbeam is installed to two sets of backup pads tops, crossbeam and two sets of backup pads sliding fit, install engraving device on the crossbeam, engraving device and crossbeam sliding fit, the elevating gear of lifting automobile body still is equipped with below the engraving device, and elevating gear comprises quick elevation structure and fine setting structure, and quick elevation structure will after the automobile body takes one's place the automobile body jack-up is unsettled until the wheel, and fine setting structure adjustment automobile body height is in the horizontality until the mesa, adjusts the high position of work piece promptly through elevating gear to the processing of cooperation processing subassembly. As the carving machine disclosed in the Chinese utility model application (application No. 201720765693.2), a first slide rail is provided with a first slide block, the top of the first slide block is connected with a lifting rod, one side of the lifting rod is provided with a first driving motor, the top end of the lifting rod is provided with a transverse plate, one side of the transverse plate is provided with a second slide rail, the second slide rail is connected with a second slide block, one side of the second slide block is connected with an installation box, one side of the installation box is provided with a second driving motor, the other side of the installation box is provided with a through hole, a connecting rod is arranged in the through hole, one end of the connecting rod is provided with a fixing ring, and a cutter head is arranged in the fixing ring, namely, the vertical moving stroke of the cutter head is increased through the vertical movement of a cross beam, however, the weight of the carving machine is large, the mode of vertically moving a workpiece or a vertically, thereby affecting the machining accuracy.

Disclosure of Invention

The utility model aims at having the above-mentioned problem to current technique, provided an engraver for the lower problem of stability and machining precision under great removal stroke of the processing subassembly of solving current engraver.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides an engraving machine, includes frame, the level setting crossbeam in the frame and the processing subassembly that has at least one tool bit, its characterized in that, it is provided with the uide bushing to slide along the horizontal direction on the crossbeam, wear to be equipped with the guide post along vertical direction in the uide bushing, be fixed with the guide rail along length direction on the guide post, be fixed with the guide block on the uide bushing, guide rail and guide block sliding fit, the processing subassembly sets up the lower extreme at the guide post.

The beam moves along the horizontal direction to realize the adjustment of the horizontal position of the processing component, the guide post moves vertically to realize the adjustment of the height position of the processing component, thereby leading the processing component to carry out three-dimensional processing on the workpiece, wherein the processing component is positioned at the lower end of the guide post, and the guide post has a certain length, so that the processing component has a larger stroke in the vertical direction, the machining assembly can be subjected to larger reaction force in the machining process, so that the guide post is positioned by the guide sleeve in any horizontal direction by adopting the structure that the guide sleeve tightly holds the guide post, further leading the stroke of the processing assembly to be larger, still keeping enough stability and processing precision when the distance from the guide sleeve is far, meanwhile, the guide rail is in sliding fit with the guide block, so that the guide column is more stable to move, the moving stroke precision is higher, and the machining precision is further improved.

In the engraving machine, the beam is arranged on the frame in a sliding manner along the longitudinal direction. The longitudinal position of the cutter head is adjusted through the longitudinal movement of the cross beam.

In the engraving machine, the cross sections of the guide sleeve and the guide column are rectangular, and at least two inner side surfaces of the guide sleeve and at least two outer side surfaces of the guide column are in sliding fit with the guide block through the guide rail respectively. Through the direction cooperation between a plurality of faces between guide post and the uide bushing for the guide post obtains abundant location, with guarantee stability, and the guiding element can enough transmit the guiding sleeve to the locating force of guide post, also can make the removal of guide post more smooth and easy, and the precision is higher.

In the engraving machine, the guide sleeve comprises a transverse carriage, two side plates and an end plate, the transverse carriage is connected to the cross beam in a transverse sliding mode, the two side plates are vertically fixed to the transverse carriage, the end plate is fixed to the two side plates, the transverse carriage, the two side plates and the end plate form the guide sleeve in a surrounding mode, and the guide column is of a hollow structure. The transverse planker is used as a component of the guide sleeve to simplify the framework and reduce the weight of the guide sleeve, and similarly, the guide post is made into a hollow structure, so that the weight of the guide sleeve can be reduced, the moving precision and the machining precision are further improved, the transverse planker can be arranged on the cross beam in a sliding mode, and the guide sleeve is of an integral structure and is fixed on the transverse planker.

In the engraving machine, the guide blocks are fixed on the inner side surfaces of the two side plates, the guide rails are fixed on the side surfaces of the two sides of the guide column, and the guide rails on the two sides of the guide column are respectively connected with the guide blocks on the two side plates in a sliding manner. Through the cooperation of the guide blocks on the two sides and the guide rail, the guide column is positioned in the transverse direction to bear the transverse stress in the machining process, and the stability and the machining precision are ensured.

In the engraving machine, the guide block is fixed on the inner side surface of the end plate, the guide rail is fixed on the front side surface of the guide column, and the guide rail on the front side of the guide column is in sliding fit with the guide block on the end plate. The guide block on the front side is matched with the guide rail, so that the guide column is positioned in the front and rear directions, the stress in the front and rear directions in the machining process is borne, and the stability and the machining precision are ensured.

In the engraving machine, the front side surface of the transverse carriage is horizontally fixed with a plurality of supporting plates which are vertically arranged, the two side edges of the supporting plates are respectively abutted against and fixed with 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. In the processing subassembly course of working, the uide bushing can receive great reaction force, supports the inboard of uide bushing through the backup pad, processes the outside of wire sleeve through the strengthening rib to improve the mechanism intensity of uide bushing, and then guarantee holistic stability.

In foretell engraver, the frame includes the chassis of rectangle frame form and fixes two supporting beams on the chassis through a plurality of stands, the both ends of crossbeam sliding connection respectively are on two supporting beams, be equipped with a plurality ofly on the chassis and support and can adjust the adjustment mechanism of chassis height to the chassis. The supporting beam is supported and fixed through the stand column, so that the cross beam has larger height, the lower part of the cross beam has larger space for the three-dimensional translation of the processing assembly, the whole height of the rack can be adjusted through the adjusting mechanism, the supporting beam is further suitable for workpieces with different heights, and the supporting beam is better in applicability by combining with the larger vertical moving stroke of the guide column.

In the engraving machine, the adjusting mechanism comprises a cylindrical supporting seat, a threaded sleeve is fixed on the inner circumferential surface of the supporting seat, a screw rod is rotatably connected to the base frame and is vertically arranged, the lower end of the screw rod is in threaded connection with the threaded sleeve, and an adjusting motor capable of driving the screw rods to rotate synchronously is arranged on the rack. The adjusting motor drives the plurality of screw rods to synchronously rotate, the adjusting motor and the screw rods are lifted along with the rack under the support of the supporting seat, and the screw rods and the threaded sleeves can be self-locked after being adjusted in place, so that the height of the rack is locked.

In foretell engraver, four corners of chassis all are equipped with above-mentioned screw rod, the horizontal both sides of chassis all rotate and are connected with the transfer line, and the transfer line sets up along the fore-and-aft direction, the both ends of transfer line all are fixed with the worm, the upper end of screw rod all is fixed with the worm wheel, and the worm at transfer line both ends meshes with the worm wheel on two screw rods with one side respectively mutually, two the rear end of transfer line all is fixed with the band pulley, and the cover is equipped with the drive belt on two band pulleys, the motor shaft of adjusting motor is connected with one of them transfer line. The adjusting motor drives one of the transmission rods to rotate, the transmission rod is matched with the belt wheel through the transmission belt to drive the other transmission rod to synchronously rotate, and the two transmission rods are matched with the worm through the worm wheel and the worm to drive the four screw rods to synchronously rotate, so that the adjusting mechanism has good synchronism and further ensures the stability of the rack.

In foretell engraver, four corners of chassis all are fixed with the mounting panel, the screw rod rotates to be connected on the mounting panel, the vertical sliding sleeve that is fixed with on the mounting panel downside, the sliding sleeve cover is established on the supporting seat, and sliding sleeve and supporting seat sliding fit. The sliding sleeve is in sliding fit with the supporting seat, so that a guiding effect is achieved, and the supporting seat is more stably connected with the rack.

In the engraving machine, the adjusting mechanism comprises a plurality of oil cylinders, the oil cylinders are vertically arranged, and piston rods of the oil cylinders are vertically upward and are fixedly connected with the bottom of the bottom frame. The height of the rack is adjusted by synchronously stretching the piston rods of the oil cylinders.

In the engraving machine, a vertical driving piece capable of driving the guide post to ascend and descend is further arranged between the guide sleeve and the guide post, and the vertical driving piece comprises a screw rod nut mechanism, a gear rack mechanism or an air cylinder. The vertical driving piece drives the guide post to lift so as to realize the adjustment of the height position of the processing assembly.

In the engraving machine, the vertical driving piece is a screw-nut mechanism, the screw-nut mechanism comprises a vertical nut fixed on the inner side surface of the guide sleeve, the rear side surface of the guide column is connected with a vertical screw rod along vertical rotation, the vertical screw rod is in threaded connection with the vertical nut, the top end of the guide column is fixed with a vertical motor, and the vertical motor is connected with the vertical screw rod. Because the guide post obtains the location of uide bushing, stability is higher, consequently vertical motor snap-on in the upper end of guide post as power take off source, and it goes up and down along with the guide post with vertical lead screw together, and then guarantees stability.

In foretell engraver, the lower extreme of guide post rotates and is connected with and rotates the seat, and the axis of rotation lead that should rotate the seat sets up along vertical, the processing subassembly is including processing the motor, and this processing motor rotates to be connected on rotating the seat, and the axis of rotation lead of processing the motor sets up along the horizontal direction, the tool bit is installed on processing the motor. The adjustment of the horizontal orientation of the tool bit is realized through the rotating seat, the adjustment of the vertical direction of the tool bit is realized through the rotation of the processing motor, and the workpiece is processed in a three-dimensional manner.

In foretell engraver, two the supporting beam all sets up along the fore-and-aft direction, all is fixed with longitudinal slide rail along the fore-and-aft direction on two supporting beams, sliding connection is on the longitudinal slide rail on two supporting beams respectively at the both ends of crossbeam, transversely be fixed with horizontal slide rail along transversely on the crossbeam, uide bushing sliding connection is on horizontal slide rail. The longitudinal movement of the cross beam realizes the longitudinal position adjustment of the cutter head, the transverse movement of the transverse planker realizes the transverse position adjustment of the cutter head, the vertical movement of the guide post realizes the height position adjustment of the cutter head, and the five-dimensional movement of the cutter head is realized by combining the rotation of the rotating seat and the rotation of the processing motor.

Compared with the prior art, the engraving machine has the following advantages:

1. because the structure setting of guide post is held tightly to the uide bushing for the guide post all receives the location of uide bushing in the arbitrary direction of level, and then makes the processing subassembly stroke great, still can keep sufficient stability and machining precision when far away from the uide bushing.

2. Because the mode that the uide bushing combines together through the guide block of different positions for the guide post obtains the location of equidirectional, and then guarantees to process stability and precision of subassembly processing man-hour.

3. Because still be equipped with a plurality of adjustment mechanism that support and can adjust the chassis height to the chassis on the chassis, can adjust the whole height of frame through adjustment mechanism, and then be applicable to the work piece of co-altitude not, through combining the great vertical movement stroke of guide post, consequently the suitability is better.

Drawings

Fig. 1 is a schematic perspective view of an engraving machine.

Fig. 2 is a top view of the construction of the engraver.

Fig. 3 is a sectional view of the structure at a-a in fig. 2.

Fig. 4 is an enlarged view of the structure at B in fig. 1.

Fig. 5 is an enlarged view of the structure at C in fig. 2.

Fig. 6 is an enlarged view of the structure at D in fig. 3.

Fig. 7 is a partial structural cross-sectional view at E-E in fig. 2.

Fig. 8 is an enlarged view of the structure at F in fig. 1.

Fig. 9 is a partial structural sectional view at G-G in fig. 2.

Fig. 10 is a schematic perspective view of the engraving machine according to the second embodiment.

In the figure, 1, a frame; 11. a chassis; 111. mounting a plate; 12. a column; 13. a support beam; 131. a longitudinal slide rail; 2. a cross beam; 21. a transverse slide rail; 22. a support; 221. a longitudinal slide block; 3. a guide sleeve; 31. a transverse carriage; 311. a vertical nut; 312. a transverse slide block; 32. a side plate; 33. an end plate; 34. a support plate; 35. reinforcing ribs; 36. a guide block; 4. a guide post; 41. a guide rail; 42. a vertical screw rod; 43. a vertical motor; 44. a rotating seat; 45. a horizontal steering motor; 46. a vertical steering motor; 5. processing the assembly; 51. processing a motor; 52. a cutter head; 6. an adjustment mechanism; 61. a supporting seat; 62. a threaded sleeve; 63. a screw; 631. a worm gear; 64. a transmission rod; 641. a worm; 642. a pulley; 643. a transmission belt; 65. adjusting the motor; 66. a sliding sleeve; 67. and an oil cylinder.

Detailed Description

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

The first embodiment is as follows:

as shown in fig. 1, an engraving machine includes a machine frame 1, a cross beam 2, a guide sleeve 3, a guide post 4 and a processing assembly 5, where the machine frame 1 includes an underframe 11 and two support beams 13, the underframe 11 is rectangular frame-shaped, a plurality of vertical columns 12 are vertically fixed on the underframe 11, the two support beams 13 are fixed at the top ends of the vertical 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, and a space for placing a workpiece is provided between the two support beams 13, as shown in fig. 2 and 3, a pair of longitudinal slide rails 131 is longitudinally fixed on the upper side surfaces of the two support beams 13, two ends of the cross beam 2 are respectively provided with downward supports 22, the bottom of each support 22 is fixed with a longitudinal slide block 221, and the two supports 22 are respectively connected to the longitudinal slide rails 131 of the two support beams 13 through the longitudinal slide blocks 221. The beam 2 is horizontally arranged along the horizontal direction, a pair of horizontal sliding rails 21 is horizontally fixed on the front side surface of the beam 2, a horizontal sliding block 312 is fixed on the guide sleeve 3, the horizontal sliding block 312 is connected on the horizontal sliding rails 21 in a sliding manner, the central line of the guide sleeve 3 is vertically arranged, the guide column 4 vertically penetrates through the guide sleeve 3, the guide column 4 is in sliding fit with the guide sleeve 3, the lower end of the guide column 4 is rotatably connected with a rotating seat 44, the rotating axial line of the rotating seat 44 is vertically arranged, the processing assembly 5 comprises a processing motor 51 and a tool bit 52, the processing motor 51 is rotatably connected on the rotating seat 44, the rotating axial line of the processing motor 51 is horizontally arranged, the tool bit 52 is arranged on the processing motor 51, the beam 2 and the guide sleeve 3 are driven by respective motors and screw nuts in a matching manner, a horizontal steering motor 45 is fixed inside the lower end of the guide column 4, the horizontal steering motor 45 drives the rotating base 44 to rotate through a speed reducer, a vertical steering motor 46 is fixed on the rotating base 44, and the vertical steering motor 46 drives the machining motor 51 to swing through belt pulley transmission, gear transmission and other modes.

Specifically, as shown in fig. 4 and 5, the cross section of the guide sleeve 3 is rectangular, and includes a transverse carriage 31, two side plates 32 and an end plate 33, a transverse slider 312 is fixed on the rear side of the transverse carriage 31, the two side plates 32 are vertically fixed on the front side of the transverse carriage 31, the end plate 33 is fixed on the front side edges of the two side plates 32, that is, the transverse carriage 31, the two side plates 32 and the end portion enclose the guide sleeve 3, and three support plates 34 are horizontally fixed on the front side of the transverse carriage 31, and the three support plates 34 are vertically arranged. The two side edges of the supporting plate 34 are respectively abutted against and fixed to the inner side surfaces of the two side plates 32 so as to support the two side plates 32, a plurality of reinforcing ribs 35 arranged vertically are further arranged on the outer side surfaces of the two side plates 32, and the length directions of the reinforcing ribs 35 are arranged along the front-back direction. Referring to fig. 6 and 7, the guide post 4 is a hollow structure, guide rails 41 are fixed on lateral sides of two lateral sides of the guide post 4, the guide rails 41 are arranged along a vertical direction, two ends of each guide rail 41 extend to two ends of the guide post 4 respectively, three guide blocks 36 are fixed on inner lateral sides of two lateral plates 32, the three guide blocks 36 on the same lateral plate 32 are arranged along a vertical direction, the guide rails 41 on two lateral sides of the guide post 4 are in sliding fit with the guide blocks 36 on the two lateral plates 32 respectively, two guide rails 41 are fixed on a front lateral side of the guide post 4, the two guide rails 41 are arranged along a vertical direction, two ends of each guide rail 41 extend to two ends of the guide post 4 respectively, two guide blocks 36 are fixed on an inner lateral side of the end plate 33, and the two guide rails 41 on the front lateral side of the guide post 4 are in sliding fit with the two guide blocks 36 on the end plate 33. Still be equipped with feed screw nut mechanism between uide bushing 3 and guide post 4, feed screw nut mechanism is connected with vertical lead screw 42 along vertical rotation including fixing vertical nut 311 on 3 medial surfaces of uide bushing on the 4 trailing flanks of guide post, vertical lead screw 42 and vertical nut 311 looks spiro union, and the top of guide post 4 is fixed with vertical motor 43, and vertical motor 43 is connected with vertical lead screw 42.

Referring to fig. 8 and 9, an adjusting mechanism 6 capable of adjusting the height of the chassis 11 is disposed at each of four corners of the chassis 11, specifically, the adjusting mechanism 6 includes a cylindrical supporting base 61, a mounting plate 111 is horizontally fixed at each of the four corners of the chassis 11, a sliding sleeve 66 is vertically fixed on a lower side surface of the mounting plate 111, the sliding sleeve 66 is sleeved on the supporting base 61, the sliding sleeve 66 is in sliding fit with the supporting base 61, a threaded sleeve 62 is fixed on an inner circumferential surface of the supporting base 61, a screw 63 is rotatably connected to the mounting plate 111, the screw 63 is vertically disposed, a lower end of the screw 63 extends into the supporting base 61 and is in threaded connection with the threaded sleeve 62, a worm wheel 631 is fixed at an upper end of the screw 63, transmission rods 64 are rotatably connected to two lateral sides of the chassis 11, the transmission rods 64 are disposed in a front-back direction, worms 641 are fixed at two ends of the transmission rods 64, and the, the rear ends of the two transmission rods 64 are fixed with belt wheels 642, the two belt wheels 642 are sleeved with transmission belts 643, the adjusting motor 65 is fixed on one mounting plate 111, and the motor shaft of the adjusting motor 65 is connected with one of the transmission rods 64.

Example two:

the structure of the engraving machine is basically the same as that of the first embodiment, and the difference is that as shown in fig. 10, the adjusting mechanism 6 includes four oil cylinders 67, the four oil cylinders 67 are vertically arranged, the four oil cylinders 67 are respectively located at four corners of the base frame 11, and piston rods of the oil cylinders 67 face and are fixedly connected with the mounting plate 111.

Example three:

the structure of this engraver is basically the same as embodiment one, the difference lies in, frame 1 includes two stands, two stands are along transverse arrangement, the both ends of crossbeam 2 are fixed respectively on the top of two stands, be equipped with the base between two stands, this base is located the below of crossbeam 2, along longitudinal fixation there is longitudinal slide rail 131 on the base, sliding connection has the processing platform on longitudinal slide rail 131, the processing platform level sets up, be used for fixing a position the work piece, the processing platform passes through screw-nut subassembly or gear rack subassembly drive, drive the work piece along longitudinal movement through the processing platform, combine the lateral shifting of uide bushing 3 and the vertical removal of guide post 4 simultaneously, realize the three-dimensional translation of tool bit 52 relative work piece, of course longitudinal slide rail 131 can have many pairs, make the processing platform have a plurality ofly and along transverse arrangement.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms rack 1, chassis 11, mounting plate 111, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims (16)

1. The utility model provides an engraving machine, includes frame (1), horizontal setting crossbeam (2) in frame (1) and processing subassembly (5) that have at least one tool bit (52), its characterized in that, it is provided with uide bushing (3) to slide along the horizontal direction on crossbeam (2), guide post (4) are worn to be equipped with along vertical direction in uide bushing (3), be fixed with guide rail (41) along length direction on guide post (4), be fixed with guide block (36) on uide bushing (3), guide rail (41) and guide block (36) sliding fit, processing subassembly (5) set up the lower extreme at guide post (4).

2. The engraver according to claim 1, characterized in that said cross-beam (2) is arranged on the frame (1) in a longitudinally sliding manner.

3. The engraving machine according to claim 1, characterized in that the guide sleeve (3) and the guide post (4) are rectangular in cross section, and at least two inner sides of the guide sleeve (3) and at least two outer sides of the guide post (4) are slidably engaged with the guide block (36) through the guide rail (41), respectively.

4. The engraving machine according to claim 3, wherein said guide sleeve (3) comprises a transverse carriage (31), two side plates (32) and an end plate (33), said transverse carriage (31) is connected to the cross beam (2) in a sliding manner along a transverse direction, both said side plates (32) are vertically fixed on the transverse carriage (31), said end plate (33) is fixed on the two side plates (32), and the transverse carriage (31), the two side plates (32) and the end plate (33) enclose said guide sleeve (3), and said guide post (4) is of a hollow structure.

5. The engraving machine according to claim 4, characterized in that 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 side surfaces of the two sides of the guide column (4), and the guide rails (41) on the two sides of the guide column (4) are respectively connected with the guide blocks (36) on the two side plates (32) in a sliding manner.

6. The engraver according to claim 5, characterized in that said guide block (36) is fixed to the inner side of said end plate (33), said guide rail (41) is fixed to the front side of said guide post (4), and the guide rail (41) of the front side of the guide post (4) is slidably fitted to the guide block (36) of the end plate (33).

7. The engraving machine according to claim 4, 5 or 6, wherein a plurality of support plates (34) are horizontally fixed on the front side surface of the transverse carriage (31), the support plates (34) are vertically arranged, 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), and a plurality of reinforcing ribs (35) are arranged on the outer side surfaces of the two side plates (32).

8. The engraving machine according to any one of claims 1 to 6, characterized in that said frame (1) comprises a rectangular frame-shaped base frame (11) and two supporting beams (13) fixed on said base frame (11) by means of a plurality of upright posts (12), said cross beam (2) having two ends respectively slidably connected to said two supporting beams (13), said base frame (11) being provided with a plurality of adjusting mechanisms (6) for supporting said base frame (11) and for adjusting the height of said base frame (11).

9. The engraving machine according to claim 8, wherein the adjusting mechanism (6) comprises a cylindrical support base (61), a threaded sleeve (62) is fixed on the inner peripheral surface of the support base (61), a screw (63) is rotatably connected to the base frame (11), the screw (63) is vertically arranged, the lower end of the screw (63) is screwed in the threaded sleeve (62), and an adjusting motor (65) capable of driving a plurality of screws (63) to synchronously rotate is arranged on the frame (1).

10. The engraving machine according to claim 9, characterized in that the screws (63) are disposed at four corners of the base frame (11), the transmission rods (64) are rotatably connected to two lateral sides of the base frame (11), the transmission rods (64) are disposed along the front-back direction, the worm screws (641) are fixed at two ends of the transmission rods (64), the worm wheels (631) are fixed at upper ends of the screws (63), the worm screws (641) at two ends of the transmission rods (64) are respectively engaged with the worm wheels (631) of the screws (63) on the same side, the pulleys (642) are fixed at rear ends of the transmission rods (64), the pulleys (642) are sleeved with the pulleys (643), and the motor shaft of the adjusting motor (65) is connected to one of the transmission rods (64).

11. The engraving machine according to claim 9, wherein a mounting plate (111) is fixed at each of four corners of the base frame (11), the screw (63) is rotatably connected to the mounting plate (111), a sliding sleeve (66) is vertically fixed on the lower side surface of the mounting plate (111), the sliding sleeve (66) is sleeved on the supporting seat (61), and the sliding sleeve (66) is in sliding fit with the supporting seat (61).

12. The engraving machine according to claim 8, characterized in that said adjusting means (6) comprise a plurality of cylinders (67), said plurality of cylinders (67) being arranged vertically, and the piston rods of said plurality of cylinders (67) being directed vertically upwards and being fixedly connected to the bottom of the base frame (11).

13. The engraving machine according to any one of claims 1 to 6, wherein a vertical driving member capable of driving the guide post (4) to move up and down is further disposed between the guide sleeve (3) and the guide post (4), and the vertical driving member comprises a screw-nut mechanism, a rack-and-pinion mechanism or an air cylinder.

14. The engraving machine according to claim 13, characterized in that the vertical driving member is a screw-nut mechanism, the screw-nut mechanism comprises a vertical nut (311) fixed on the inner side surface of the guide sleeve (3), a vertical screw (42) is vertically and rotatably connected to the rear side surface of the guide post (4), the vertical screw (42) is in threaded connection with the vertical nut (311), a vertical motor (43) is fixed to the top end of the guide post (4), and the vertical motor (43) is connected with the vertical screw (42).

15. The engraving machine according to any one of claims 1 to 6, wherein the lower end of the guide post (4) is rotatably connected with a rotating base (44), the rotating axis of the rotating base (44) is vertically arranged, the machining assembly (5) comprises a machining motor (51), the machining motor (51) is rotatably connected with the rotating base (44), the rotating axis of the machining motor (51) is horizontally arranged, and the tool bit (52) is mounted on the machining motor (51).

16. The engraving machine according to claim 8, characterized in that both said supporting beams (13) are arranged along the front-back direction, longitudinal sliding rails (131) are fixed on both said supporting beams (13) along the front-back direction, both ends of said cross beam (2) are respectively slidably connected to the longitudinal sliding rails (131) on both said supporting beams (13), a transverse sliding rail (21) is fixed on said cross beam (2) along the transverse direction, and said guiding sleeve (3) is slidably connected to the transverse sliding rail (21).

Images