Tool bit switching equipment

Abstract

The utility model relates to the technical field of furniture production, and discloses tool bit switching equipment which comprises a rack, a first servo motor is fixedly connected to the top of the rack, a tool bit is movably connected to the top of the first servo motor, a second servo motor is fixedly connected to the side wall face of the rack, and an engraving machine is further fixedly connected to the side wall face of the rack. A tool changing structure is arranged at the bottom of the first servo motor and comprises a clamping block and a clamping plate, the clamping block is rotationally connected to the bottom of the first servo motor, the clamping plate is rotationally connected to the bottom of the second servo motor, and the tool changing structure can move a tool bit to the bottom of the carving machine. According to the carving machine, the tool bits can be rapidly replaced to the bottom of the carving machine by arranging the tool changing structure, and due to the fact that when the tool bits need to be replaced, the tool changing structure can achieve simultaneous disassembly and replacement of the two tool bits only by rotating the rotating plate, and rapid tool bit switching is completed.

Description

Technical Field

[0001] The utility model belongs to the technical field of furniture production, and in particular relates to a cutter head switching device. Background Art

[0002] The prior art (publication number: CN117415656B) discloses a tool head switching device for a CNC machining center, which belongs to the field of CNC machining technology and includes a base plate on which a switching support plate is fixedly mounted. The base plate is provided with a calling component and a switching component, and the switching component includes two T-shaped switching plates.

[0003] The prior art uses a clamping claw that can clamp the cutter head to clamp the cutter head from a fixed position and separate it from the fixed position, and then installs the cutter head to one end of a rotatable rod. After the installation is completed, the rotatable rod will rotate 180 degrees to use the installed cutter head. Although the prior art can switch the cutter head, the prior art has more steps to switch the cutter head, resulting in a slow switching speed, which directly increases the working time.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0006] A tool head switching device comprises a frame, a first servo motor is fixedly connected to the top of the frame, a tool head is movably connected to the top of the first servo motor, a second servo motor is fixedly connected to the side wall of the frame, an engraving machine is also fixedly connected to the side wall of the frame, a tool changing structure is arranged at the bottom of the first servo motor, the tool changing structure comprises a clamping block and a clamping plate, the clamping block is rotatably connected to the bottom of the first servo motor, the clamping plate is rotatably connected to the bottom of the second servo motor, and the tool changing structure can move the tool head to the bottom of the engraving machine.

[0007] As a preferred embodiment of the utility model, the bottom of the first servo motor is fixedly connected to a base plate, the rear wall of the base plate is fixedly connected to the front wall of the frame, the bottom of the base plate is fixedly connected to a link, the bottom of the base plate is rotatably connected to a swivel, a connecting groove is provided on the top of the swivel, the link can rotate in the connecting groove, the swivel is in a circular ring shape, and the inner wall of the swivel is provided with meshing teeth, a gear is rotatably connected to the center of the bottom of the base plate, the top of the gear can pass through the base plate and be connected to the output end of the first servo motor, and another identical gear is rotatably connected to the eccentric position of the bottom of the base plate, the gear at the center position of the bottom of the base plate is meshed with the gear at the eccentric position, the gear at the eccentric position is meshed with the meshing teeth of the wall of the swivel, and the clamp is fixedly connected to the outer arc surface of the swivel.

[0008] As a preferred embodiment of the present utility model, the tool changing structure further includes a sliding groove, a spring groove, an attracting block and a spring block. The sliding groove is贯穿ly opened at the top of the clamping block. The spring grooves are symmetrically opened on the wall of the clamping block within the sliding groove. The top of the attracting block is in the shape of a right trapezoid. The attracting block is slidably connected within the sliding groove. The spring blocks are symmetrically and fixedly connected to both sides of the attracting block. The bottom of the spring block is elastically connected within the spring groove through a spring. The top of the attracting block can pass through above the sliding groove. When the top of the attracting block is flush with the top of the clamping block, the bottom of the attracting block will be flush with the bottom of the clamping block.

[0009] As a preferred embodiment of the present utility model, the tool changing structure further includes an outer clamping block, an inner clamping block, a top groove, a top block and a clamping arc. The outer clamping block is fixedly connected to the side wall of the clamping block. The inner clamping block is fixedly connected to the bottom of the clamping block. The top groove is opened on the wall of the inner clamping block. The top block is elastically connected to the inner clamping block within the top groove through a spring. The clamping arc is fixedly connected to the front wall of the top block. Multiple clamping blocks, sliding grooves, spring grooves, attracting blocks, spring blocks, outer clamping blocks, inner clamping blocks, top grooves, top blocks and clamping arcs are arranged in a circular array on the outer wall of the rotating ring.

[0010] As a preferred embodiment of the present utility model, the bottom of the outer clamping block is flush with the bottom of the inner clamping block. The walls of both the inner clamping block and the outer clamping block have a curvature. The cross-section of the outer clamping block is in a C shape, and the cross-section of the inner clamping block is in a mirror-image L shape. The bottom of the inner wall of the outer clamping block is flush with the bottom of the inner wall of the inner clamping block. The clamping arc is in the shape of an arc-shaped plate.

[0011] As a preferred embodiment of the present utility model, the tool changing structure further includes a clamping column, a sliding position groove, a attracted block and a clamping groove. The clamping column is fixedly connected to the top of the tool head. The clamping column is also slidably connected between the inner wall of the outer clamping block and the inner wall of the inner clamping block. The sliding position groove is opened at the top of the clamping column. The sliding position groove is in the shape of a convex-shaped groove. The attracted block is slidably connected within the sliding position groove. The cross-section of the attracted block is in a convex shape. The top of the attracted block can pass through the top of the clamping column. The top of the attracted block is also magnetically connected to the bottom of the attracting block. The top of the attracted block can enter the bottom of the sliding groove. The clamping groove is opened at the top of the tool head. Both the clamping column and the tool head are in a cylindrical shape. The diameter of the clamping column is larger than that of the tool head. The diameter of the tool head is consistent with the bottom spacing between the outer clamping block and the inner clamping block. The size of the clamping column is consistent with the cavities within the outer clamping block and the inner clamping block. The number and positions of the clamping column, tool head, sliding position groove, attracted block and clamping groove correspond to those of the clamping block.

[0012] As a preferred embodiment of the present utility model, the tool changing structure further includes a rotating column, a rotating plate, a clamping plate, a belt groove, a dial rod and a protective shell. The rotating column is rotatably connected to the bottom of the second servo motor. The top of the rotating column can be connected to the bottom output end of the second servo motor. The rotating plate is fixedly connected to the bottom of the rotating column. The clamping plates are symmetrically and fixedly connected to both sides of the rotating plate. The belt groove is opened on the rear wall of one of the clamping plates. The same belt groove is opened on the front wall of the other clamping plate. The dial rods are symmetrically and fixedly connected to both sides of the rotating plate. The protective shell is fixedly connected to the bottom of the inner clamping block.

[0013] As a preferred embodiment of the utility model, the belt groove can be inserted into the card slot, the belt groove is a semi-capsule-shaped groove, the cross-section of the lever is an inverted right triangle, the inclined surface angle of the lever is fitted with the inclined surface angle of the top of the attraction block, the inclined surface of the lever can contact the inclined surface of the top of the attraction block, the cross-section of the protective shell is a mirrored L-shape, the height of the protective shell is greater than the tool head and the clamping column, the bottom of the inner wall of the protective shell can contact the tool head, and the bottom of the engraving machine is also fixedly connected with the same clamping block, slide groove, spring groove, attraction block, spring block, outer clamping block, inner clamping block, top groove, top block, clamping arc, clamping column, tool head, sliding groove, sucked block and card slot.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. By setting up a tool changing structure, the tool head can be quickly replaced to the bottom of the engraving machine, because the tool changing structure can simultaneously disassemble and replace the two tool heads by simply rotating the rotating plate when the tool head needs to be replaced, thereby completing the rapid switching of the tool heads. Therefore, compared with the prior art, the tool head switching and installation speed of this solution is faster, which shortens the working time.

[0016] 2. By setting the clamping arc, when the clamping column is driven and rotated by the rotating ring, it can prevent the clamping column from being thrown off during rotation, thereby increasing the stability of the device during operation and reducing the failure rate.

[0017] 3. By setting up a protective shell, the cutter head can be prevented from being damaged and accidentally injuring the staff when it is idle at the bottom of the clamp, because the protective shell blocks the sharp part of the bottom of the cutter head, thereby preventing the staff from touching the bottom of the cutter head, reducing the danger of the device and effectively ensuring the safety of the staff.

[0018] 4. When this solution is in operation, the staff only needs to ensure the normal operation of the first servo motor, the second servo motor and the engraving machine, without any other manual intervention, which effectively reduces the work pressure of the staff.

[0019] The specific implementation modes of the present utility model are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In the attached picture:

[0021] Figure 1 It is a three-dimensional diagram of the utility model;

[0022] Figure 2 This is a disassembly diagram of the swivel and base plate of the utility model;

[0023] Figure 3 This is a bottom stereogram of the clamping block of the utility model;

[0024] Figure 4This is a cross-sectional view of the clamping block cavity of the utility model;

[0025] Figure 5 This is a disassembled diagram of the inner card block wall structure of the utility model;

[0026] Figure 6 This is a cross-sectional view of the cavity of the clamping column and the cutter head of the utility model;

[0027] Figure 7 This is a structural diagram of the rotating column and rotating plate wall of the utility model.

[0028] In the figure: 20, frame; 21, first servo motor; 22, second servo motor; 23, engraving machine; 30, base plate; 31, chain; 32, swivel; 33, connecting groove; 40, clamping block; 41, slide groove; 42, spring groove; 43, attraction block; 44, spring block; 45, outer clamping block; 46, inner clamping block; 47, top groove; 48, top block; 49, clamping arc; 50, clamping column; 51, tool head; 52, sliding groove; 53, sucked block; 54, clamping groove; 60, rotating column; 61, rotating plate; 62, clamping plate; 63, belt groove; 64, lever; 65, protective shell. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.

[0030] like Figure 1 As shown, a tool head switching device includes a frame 20, a first servo motor 21 is fixedly connected to the top of the frame 20, a tool head 51 is movably connected to the top of the first servo motor 21, a second servo motor 22 is fixedly connected to the side wall of the frame 20, and an engraving machine 23 is also fixedly connected to the side wall of the frame 20. The first servo motor 21, the second servo motor 22 and the engraving machine 23 are all electrically connected to corresponding power supplies. The engraving machine 23 is any model in the prior art that can engrave furniture. The engraving machine 23 cooperates with the tool head 51 to engrave furniture. This is an existing technology, so it will not be described here.

[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7 As shown, a tool changing structure is provided at the bottom of the first servo motor 21, and the tool changing structure includes a clamping block 40 and a clamping plate 62. The clamping block 40 is rotatably connected to the bottom of the first servo motor 21, and the clamping plate 62 is rotatably connected to the bottom of the second servo motor 22. The tool changing structure can move the tool head 51 to the bottom of the engraving machine 23.

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, the bottom of the first servo motor 21 is fixedly connected to a base plate 30, the rear wall of the base plate 30 is fixedly connected to the front wall of the frame 20, the bottom of the base plate 30 is fixedly connected to a link 31, the bottom of the base plate 30 is rotatably connected to a rotating ring 32, the top of the rotating ring 32 is provided with a connecting groove 33, the link 31 can rotate in the connecting groove 33, the rotating ring 32 is annular, and the inner wall of the rotating ring 32 is provided with meshing teeth, the bottom of the base plate 30 is rotatably connected to a gear, the top of the gear can pass through the base plate 30 and be connected to the output end of the first servo motor 21, the bottom of the base plate 30 is rotatably connected to another similar gear at an eccentric position, the gear at the center position of the bottom of the base plate 30 is meshed with the gear at the eccentric position, and the gear at the eccentric position is meshed with the meshing teeth of the wall of the rotating ring 32. The clamping block 40 is meshed, and is fixedly connected to the outer arc surface of the rotating ring 32. The tool changing structure also includes a slide groove 41, a spring groove 42, an attraction block 43 and a spring block 44. The slide groove 41 runs through the top of the clamping block 40, and the spring groove 42 is symmetrically opened on the wall surface of the clamping block 40 in the slide groove 41. The top of the attraction block 43 is a right-angled trapezoid. The attraction block 43 is slidably connected in the slide groove 41. The spring block 44 is symmetrically fixedly connected to both sides of the attraction block 43. The bottom of the spring block 44 is elastically connected in the spring groove 42 by a spring. The top of the attraction block 43 can pass through the top of the slide groove 41. When the top of the attraction block 43 is flush with the top of the clamping block 40, the bottom of the attraction block 43 will be flush with the bottom of the clamping block 40. The tool changing structure also includes an outer clamping block 45, an inner clamping block 46, a top groove 47, a top block 48 and a clamping arc 4 9, the outer clamping block 45 is fixedly connected to the side wall of the clamping block 40, the inner clamping block 46 is fixedly connected to the bottom of the clamping block 40, the top groove 47 is opened on the wall of the inner clamping block 46, the top block 48 is elastically connected to the inner clamping block 46 in the top groove 47 through a spring, and the clamping arc 49 is fixedly connected to the front wall of the top block 48. The clamping block 40, the slide groove 41, the spring groove 42, the suction block 43, the spring block 44, the outer clamping block 45, the inner clamping block 46, the top groove 47, the top block 48 and the clamping arc 49 are arranged in a circular array on the outer wall of the rotating ring 32. The tool changing structure also includes a clamping column 50, a sliding groove 52, a sucked block 53 and a clamping groove 54. The clamping column 50 is fixedly connected to the top of the cutter head 51, and the clamping column 50 is also slidably connected between the inner wall of the outer clamping block 45 and the inner wall of the inner clamping block 46. The sliding groove 52 The top of the sucked block 53 can pass through the top of the clamping column 50, and the top of the sucked block 53 is also magnetically connected to the bottom of the attraction block 43, and the top of the sucked block 53 can enter the bottom of the slide groove 41. The clamping groove 54 is opened at the top of the cutter head 51. The clamping column 50 and the cutter head 51 are both cylindrical. The diameter of the clamping column 50 is larger than that of the cutter head 51. The diameter of the cutter head 51 is consistent with the bottom spacing of the outer clamping block 45 and the inner clamping block 46. The size of the clamping column 50 is consistent with the inner cavity of the outer clamping block 45 and the inner cavity of the inner clamping block 46. The number and position of the clamping column 50, the cutter head 51, the sliding groove 52, the sucked block 53 and the clamping groove 54 correspond to those of the clamping block 40.The tool changing structure also includes a rotating column 60, a rotating plate 61, a card plate 62, a belt groove 63, a lever 64 and a protective shell 65. The rotating column 60 is rotatably connected to the bottom of the second servo motor 22, and the top of the rotating column 60 can be connected to the bottom output end of the second servo motor 22. The rotating plate 61 is fixedly connected to the bottom of the rotating column 60, and the card plate 62 is symmetrically fixedly connected to both sides of the rotating plate 61. The belt groove 63 is opened on the rear wall surface of the card plate 62 on one side, and the front wall surface of the card plate 62 on the other side is opened with the same belt groove 63. The lever 64 is symmetrically fixedly connected to both sides of the rotating plate 61, and the protective shell 65 is fixedly connected to the bottom of the inner block 46;

[0033] During specific use, when the cutter head 51 needs to be replaced at the bottom of the engraving machine 23, the power corresponding to the first servo motor 21 and the second servo motor 22 is turned on. First, the first servo motor 21 will drive the gear at the center of the circle at the bottom of the base plate 30 to rotate, and this gear can drive the eccentric gear to rotate. The eccentric gear drives the rotating ring 32 to rotate at the bottom of the base plate 30. When the rotating ring 32 rotates, it can drive all the clamping blocks 40, the attraction blocks 43, the elastic blocks 44, the outer clamping blocks 45, the inner clamping blocks 46, the top blocks 48, the clamping arcs 49, the clamping columns 50, the cutter head 51, the sliding slots 52 and the sucked blocks 53 on its wall to rotate at the same time. When the rotating ring 32 drives all The required cutter head 51 rotates to the leftmost side of the base plate 30 and stops. At this time, the second servo motor 22 will drive the rotating column 60 to rotate. The rotating column 60 can drive the rotating plate 61 to rotate. The rotating plate 61 will drive the card plate 62 and the lever 64 to rotate at the same time. When the card plate 62 rotates to the bottom of the engraving machine 23, the groove 63 will be inserted into the card groove 54 at the top of the cutter head 51 at the bottom of the engraving machine 23 and at the same time, the inclined surface of the lever 64 at the corresponding position can contact the inclined surface of the top of the attraction block 43 at the bottom of the engraving machine 23 and retract it into the slide groove 41. At this time, the bottom of the attraction block 43 can push out the top of the sucked block 53 originally at the bottom of the slide groove 41 cavity. The rotating clamping plate 62 can directly interlock with the belt groove 63 and the clamping groove 54 to disassemble the clamping column 50 and the cutter head 51 at the bottom of the engraving machine 23. When the clamping plate 62 and the lever 64 on one side take out the clamping column 50 and the cutter head 51 at the bottom of the engraving machine 23, the clamping plate 62 on the other side will remove the clamping column 50 and the cutter head 51 from the bottom of the clamping block 40 in the same way, and then the rotating column 60 drives the rotating plate 61 to rotate 180 degrees so that the clamping column 50 and the cutter head 51 just removed from the bottom of the clamping block 40 are installed to the bottom of the clamping block 40 at the bottom of the engraving machine 23. When the clamping column 50 and the cutter head 51 are installed to the bottom of the clamping block 40, the clamping column 50 will be removed from the inner clamping block. 46 and the opening of the outer clamping block 45 enter the inner wall spacing of the outer clamping block 45 and the inner clamping block 46. When the clamping column 50 moves to the bottom of the attraction block 43, the magnet installed at the bottom of the attraction block 43 will attract the top of the attracted block 53 vertically upward, thereby driving the attracted block 53 to move in the sliding groove 52. At this time, the top of the attracted block 53 will be attracted to the bottom of the sliding groove 41. While the attraction block 43 is attracting the attracted block 53, the spring at the bottom of the spring block 44 will push the spring block 44 and the attraction block 43 to the top of the spring groove 42. The clamping block 40 and the clamping column 50 at the bottom of the engraving machine 23 are also connected in this way, and the switching and installation of the position of the tool head 51 are completed.

[0034] In summary, by setting up the tool changing structure, the tool head 51 can be quickly replaced to the bottom of the engraving machine 23. Because when the tool head 51 needs to be replaced, the tool changing structure can disassemble and replace the two tool heads 51 simultaneously only by rotating the rotating plate 61, thus completing the quick switching of the tool head 51. Therefore, compared with the prior art, the switching and installation speed of the tool head 51 in this solution is faster, making the working time shorter.

[0035] As Figure 5 shown, the bottom of the outer clamping block 45 is flush with the bottom of the inner clamping block 46. The wall surfaces of the inner clamping block 46 and the outer clamping block 45 are both arc-shaped. The cross-section of the outer clamping block 45 is in a C shape, and the cross-section of the inner clamping block 46 is in a mirror-image L shape. The bottom of the inner wall of the outer clamping block 45 is flush with the bottom of the inner wall of the inner clamping block 46. The clamping arc 49 is an arc-shaped plate;

[0036] During specific use, when the clamping column 50 enters between the inner clamping block 46 and the outer clamping block 45, the wall surface of the clamping column 50 will contact the clamping arc 49 and push the clamping arc 49 towards the top block 48. When the position of the clamping column 50 is fixed by the attracting block 43, the clamping arc 49 will be pushed by the spring on the rear wall surface of the top block 48 to contact the wall surface of the clamping column 50;

[0037] In summary, by setting up the clamping arc 49, it can prevent the clamping column 50 from being thrown off during rotation when the clamping column 50 is driven and rotated by the rotating ring 32, thereby increasing the stability of the device during operation and reducing the failure rate.

[0038] As Figure 3 shown, the groove 63 can be inserted into the card slot 54. The groove 63 is a semi-capsule-shaped groove. The cross-section of the lever 64 is an inverted right-angled triangle. The inclined surface angle of the lever 64 fits the inclined surface angle of the top of the attracting block 43. The inclined surface of the lever 64 can contact the inclined surface of the top of the attracting block 43. The cross-section of the protective shell 65 is in a mirror-image L shape. The height of the protective shell 65 is greater than that of the tool head 51 and the clamping column 50. The bottom of the inner wall surface of the protective shell 65 can contact the tool head 51. The bottom of the engraving machine 23 is also fixedly connected with the same clamping block 40, sliding groove 41, elastic groove 42, attracting block 43, elastic block 44, outer clamping block 45, inner clamping block 46, top groove 47, top block 48, clamping arc 49, clamping column 50, tool head 51, sliding position groove 52, attracted block 53 and card slot 54;

[0039] During specific use, when the clamping column 50 and the tool head 51 enter the bottom of the clamping block 40 on the wall surface of the rotating ring 32, the protective shell 65 can block the bottom of the tool head 51;

[0040] To sum up, by providing a protective shell 65, the cutter head 51 can be prevented from being damaged and accidentally injuring the staff when it is idle at the bottom of the clamp 40, because the protective shell 65 blocks the sharp part of the bottom of the cutter head 51, thereby preventing the staff from touching the bottom of the cutter head 51, reducing the danger of the device, and effectively ensuring the safety of the staff. When this solution is operating, the staff only needs to ensure the normal operation of the first servo motor 21, the second servo motor 22 and the engraving machine 23, without any other manual intervention, which effectively reduces the work pressure of the staff.

[0041] Working principle: When the cutter head 51 needs to be replaced at the bottom of the engraving machine 23, the power corresponding to the first servo motor 21 and the second servo motor 22 is turned on. First, the first servo motor 21 drives the gear at the center of the circle at the bottom of the base plate 30 to rotate, and this gear can drive the eccentric gear to rotate. The eccentric gear drives the rotating ring 32 to rotate at the bottom of the base plate 30. When the rotating ring 32 rotates, it can drive all the clamping blocks 40, the suction blocks 43, the elastic blocks 44, the outer clamping blocks 45, the inner clamping blocks 46, the top blocks 48, the clamping arcs 49, the clamping columns 50, the cutter head 51, the sliding slots 52 and the sucked blocks 53 on its wall to rotate at the same time. When the rotating ring 32 drives the required The cutter head 51 rotates to the leftmost side of the base plate 30 and stops. At this time, the second servo motor 22 drives the rotating column 60 to rotate. The rotating column 60 can drive the rotating plate 61 to rotate. The rotating plate 61 will drive the clamping plate 62 and the lever 64 to rotate at the same time. When the clamping plate 62 rotates to the bottom of the engraving machine 23, the groove 63 will be inserted into the clamping groove 54 at the top of the cutter head 51 at the bottom of the engraving machine 23 and at the same time, the inclined surface of the lever 64 at the corresponding position can contact the inclined surface of the top of the attraction block 43 at the bottom of the engraving machine 23 and retract it into the slide groove 41. At this time, the bottom of the attraction block 43 can push out the top of the sucked block 53 originally at the bottom of the slide groove 41 cavity. The movable clamping plate 62 can directly interlock with the belt groove 63 and the clamping groove 54 to disassemble the clamping column 50 and the cutter head 51 at the bottom of the engraving machine 23. When the clamping plate 62 and the lever 64 on one side take out the clamping column 50 and the cutter head 51 at the bottom of the engraving machine 23, the clamping plate 62 on the other side will remove the clamping column 50 and the cutter head 51 from the bottom of the clamping block 40 in the same way, and then the rotating column 60 drives the rotating plate 61 to rotate 180 degrees so that the clamping column 50 and the cutter head 51 just removed from the bottom of the clamping block 40 are installed to the bottom of the clamping block 40 at the bottom of the engraving machine 23. When the clamping column 50 and the cutter head 51 are installed to the bottom of the clamping block 40, the clamping column 50 will be removed from the inner clamping block 40. 6 and the opening of the outer clamping block 45 enters the inner wall gap between the outer clamping block 45 and the inner clamping block 46. When the clamping column 50 moves to the bottom of the attraction block 43, the magnet installed at the bottom of the attraction block 43 will attract the top of the sucked block 53 vertically upward, thereby driving the sucked block 53 to move in the sliding groove 52. At this time, the top of the sucked block 53 will be attracted to the bottom of the slide groove 41. While the attraction block 43 is attracting the sucked block 53, the spring at the bottom of the spring block 44 will push the spring block 44 and the attraction block 43 to the top of the spring groove 42. The clamping block 40 and the clamping column 50 at the bottom of the engraving machine 23 are also connected in this way, and the switching and installation of the position of the tool head 51 are completed.

[0042] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A tool head switching device, comprising a frame (20), a first servo motor (21) is fixedly connected to the top of the frame (20), a tool head (51) is movably connected to the top of the first servo motor (21), a second servo motor (22) is fixedly connected to the side wall of the frame (20), and an engraving machine (23) is also fixedly connected to the side wall of the frame (20), characterized in that: A tool changing structure is provided at the bottom of the first servo motor (21), the tool changing structure comprising a clamping block (40) and a clamping plate (62), the clamping block (40) being rotatably connected to the bottom of the first servo motor (21), the clamping plate (62) being rotatably connected to the bottom of the second servo motor (22), and the tool changing structure being capable of moving the tool head (51) to the bottom of the engraving machine (23).

2. The blade switching device according to claim 1, characterized in that: The bottom of the first servo motor (21) is fixedly connected to a base plate (30), the rear wall of the base plate (30) is fixedly connected to the front wall of the frame (20), the bottom of the base plate (30) is fixedly connected to a link (31), the bottom of the base plate (30) is rotatably connected to a rotating ring (32), a connecting groove (33) is provided on the top of the rotating ring (32), the link (31) can rotate in the connecting groove (33), the rotating ring (32) is in a circular ring shape, and the inner wall of the rotating ring (32) is provided with a The base plate (30) has meshing teeth, the bottom of the base plate (30) is rotatably connected to a gear, the top of the gear can pass through the base plate (30) and is connected to the output end of the first servo motor (21), the bottom eccentric position of the base plate (30) is rotatably connected to another similar gear, the gear at the bottom center of the base plate (30) is meshed with the gear at the eccentric position, the gear at the eccentric position is meshed with the meshing teeth of the wall surface of the rotating ring (32), and the clamping block (40) is fixedly connected to the outer arc surface of the rotating ring (32).

3. The blade switching device according to claim 1, characterized in that: The tool changing structure further comprises a slide groove (41), an elastic groove (42), an attraction block (43) and an elastic block (44); the slide groove (41) is opened through the top of the clamping block (40); the elastic groove (42) is opened symmetrically on the wall surface of the clamping block (40) in the slide groove (41); the top of the attraction block (43) is in a right-angle trapezoidal shape; the attraction block (43) is slidably connected in the slide groove (41); the elastic blocks (44) are symmetrically fixedly connected on both sides of the attraction block (43); the bottom of the elastic block (44) is elastically connected in the elastic groove (42) by a spring; the top of the attraction block (43) can pass through the top of the slide groove (41); when the top of the attraction block (43) is flush with the top of the clamping block (40), the bottom of the attraction block (43) will be flush with the bottom of the clamping block (40).

4. The blade switching device according to claim 3, characterized in that: The tool changing structure further comprises an outer clamping block (45), an inner clamping block (46), a top groove (47), a top block (48) and a clamping arc (49); the outer clamping block (45) is fixedly connected to the side wall surface of the clamping block (40); the inner clamping block (46) is fixedly connected to the bottom of the clamping block (40); the top groove (47) is arranged on the wall surface of the inner clamping block (46); the top block (48) is elastically connected to the inner clamping block (46) in the top groove (47) through a spring; the clamping arc (49) is fixedly connected to the front wall surface of the top block (48); and the clamping block (40), the slide groove (41), the spring groove (42), the attraction block (43), the spring block (44), the outer clamping block (45), the inner clamping block (46), the top groove (47), the top block (48) and the clamping arc (49) are arranged in a circular array on the outer wall surface of the rotating ring (32).

5. The blade switching device according to claim 4, characterized in that: The bottom of the outer clamping block (45) is flush with the bottom of the inner clamping block (46). The wall surfaces of the inner clamping block (46) and the outer clamping block (45) both have a radian. The cross-section of the outer clamping block (45) is in a U shape, and the cross-section of the inner clamping block (46) is in a mirror-image L shape. The bottom of the inner wall of the outer clamping block (45) is flush with the bottom of the inner wall of the inner clamping block (46). The clamping arc (49) is in the shape of an arc-shaped plate.

6. The tool head switching device according to claim 4, characterized in that: The tool changing structure further includes a clamping column (50), a sliding groove (52), a magnetically attracted block (53), and a clamping groove (54). The clamping column (50) is fixedly connected to the top of the tool head (51). The clamping column (50) is also slidably connected between the inner wall of the outer clamping block (45) and the inner wall of the inner clamping block (46). The sliding groove (52) is opened at the top of the clamping column (50). The sliding groove (52) is in a convex-shaped groove. The magnetically attracted block (53) is slidably connected in the sliding groove (52). The cross-section of the magnetically attracted block (53) is in a convex shape. The top of the magnetically attracted block (53) can pass through the top of the clamping column (50). The top of the magnetically attracted block (53) is also magnetically connected to the bottom of the attracting block (43). The top of the magnetically attracted block (53) can enter the bottom of the sliding groove (41). The clamping groove (54) is opened at the top of the tool head (51). Both the clamping column (50) and the tool head (51) are in a cylindrical shape. The diameter of the clamping column (50) is larger than that of the tool head (51). The diameter of the tool head (51) is the same as the bottom spacing between the outer clamping block (45) and the inner clamping block (46). The size of the clamping column (50) is the same as the cavities of the outer clamping block (45) and the inner clamping block (46). The quantity and positions of the clamping column (50), the tool head (51), the sliding groove (52), the magnetically attracted block (53), and the clamping groove (54) correspond to those of the clamping block (40).

7. The tool head switching device according to claim 6, characterized in that: The tool changing structure further includes a rotating column (60), a rotating plate (61), a clamping plate (62), a groove (63), a shifting rod (64), and a protective shell (65). The rotating column (60) is rotatably connected to the bottom of the second servo motor (22). The top of the rotating column (60) can be connected to the bottom output end of the second servo motor (22). The rotating plate (61) is fixedly connected to the bottom of the rotating column (60). The clamping plates (62) are symmetrically and fixedly connected to both sides of the rotating plate (61). The groove (63) is opened on the rear wall surface of one clamping plate (62). The same groove (63) is opened on the front wall surface of the other clamping plate (62). The shifting rods (64) are symmetrically and fixedly connected to both sides of the rotating plate (61). The protective shell (65) is fixedly connected to the bottom of the inner clamping block (46).

8. The tool head switching device according to claim 7, characterized in that: The belt groove (63) can be inserted into the card groove (54), the belt groove (63) is a semi-capsule-shaped groove, the cross section of the lever (64) is an inverted right triangle, the inclined surface angle of the lever (64) is in line with the inclined surface angle of the top of the attraction block (43), the inclined surface of the lever (64) can contact the inclined surface of the top of the attraction block (43), the cross section of the protective shell (65) is a mirror image L-shape, the height of the protective shell (65) is greater than the cutter head (51) and the clamping column (50), and the protective shell The bottom of the inner wall surface of (65) can contact the cutter head (51), and the bottom of the engraving machine (23) is also fixedly connected with the same clamping block (40), sliding groove (41), spring groove (42), suction block (43), spring block (44), outer clamping block (45), inner clamping block (46), top groove (47), top block (48), clamping arc (49), clamping column (50), cutter head (51), sliding groove (52), suction block (53) and clamping groove (54).

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