CN216398747U

CN216398747U - Tool apron for lettering machine with detachable tool bit and adjustable gears

Info

Publication number: CN216398747U
Application number: CN202122655924.3U
Authority: CN
Inventors: 李延冲
Original assignee: Dongguan Bingao Hardware Co ltd
Current assignee: Dongguan City Binao Metal Enterprises Co ltd
Priority date: 2021-11-02
Filing date: 2021-11-02
Publication date: 2022-04-29
Anticipated expiration: 2031-11-02

Abstract

The utility model relates to the technical field of carving machines, in particular to a cutter holder for a carving machine with a gear-adjustable detachable cutter head, which comprises a cutter head, a lower loop bar, a middle loop bar, a gear adjusting knob and a nest, the sliding sleeve, the gear stops the structure, ejecting round pin spare, first spring and locking screw, gear adjust knob is equipped with the screw thread section, well cover pole is equipped with screw hole and slide opening, screw thread section and last screw hole threaded connection, nested the adorning in gear adjust knob, ejecting round pin spare and nested sliding connection, the embedded magnetism that is equipped with of sliding sleeve is inhaled and is fixed part, the bottom and the sliding sleeve of ejecting round pin spare are contradicted, gear stops the structure and is used for stopping the gear that the relative well cover pole of gear adjust knob goes up and down, tool bit and first spring all are located the slide opening, the top and the fixed part of tool bit are connected, magnetism is inhaled a magnetism and is inhaled the tool bit, lower cover pole is equipped with the sword hole, the bottom of tool bit is outside via sword hole projection to lower cover pole. The utility model can realize the gear type adjustment of the effective length of the cutter head, and is convenient for the disassembly, assembly and replacement of the cutter head.

Description

Tool apron for lettering machine with detachable tool bit and adjustable gears

Technical Field

The utility model relates to the technical field of carving machines, in particular to a cutter holder for a carving machine, wherein the cutter holder is provided with a detachable cutter head with adjustable gears.

Background

The carving machine is used for carving characters and is widely applied to different fields. Wherein the tool apron is an important component of the carving machine. Most of the existing tool apron are of an integrated structure, the tool bit is fixed and cannot be adjusted in height (effective length), the machining depth is not easily controlled during operation, the machining difficulty is increased, and the tool bit is difficult to disassemble, assemble and maintain. Therefore, the drawbacks are obvious, and a solution is needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model aims to provide a tool apron for a marking machine, which has a gear-adjustable and detachable tool bit.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a cutter holder for a lettering machine with a gear-adjustable and detachable cutter head comprises a cutter head, a lower sleeve rod, a middle sleeve rod, a gear adjusting knob, a nesting sleeve, a sliding sleeve, a magnetic attraction piece, a fixing piece, a gear clamping structure, a push-out pin piece, a first spring and a locking screw, wherein a threaded section is arranged at the bottom of the gear adjusting knob, a threaded hole and a sliding hole are sequentially arranged in the axial direction of the middle sleeve rod, the threaded section is in threaded connection with the threaded hole, the nesting sleeve is embedded in an inner cavity of the gear adjusting knob, the locking screw is used for locking the nesting sleeve to the gear adjusting knob, the push-out pin piece is in sliding connection with the nesting sleeve, the top and the bottom of the push-out pin piece respectively extend out of two ends of the nesting sleeve, the sliding sleeve is arranged in the sliding hole in a sliding manner, the magnetic attraction piece and the fixing piece are respectively embedded in the sliding sleeve, the bottom of the push-out pin piece is used for abutting against the sliding sleeve, and the bottom of the middle sleeve rod is detachably connected with the lower sleeve rod, the gear stops the gear that the structure is arranged in stopping gear adjust knob relative well telescopic lift, tool bit and first spring all are located the sliding hole, the top and the mounting of tool bit are connected, magnetism is inhaled the piece and is used for magnetism to inhale the tool bit, first spring is used for driving the sliding sleeve and resets, the telescopic is provided with the sword hole down, the bottom of tool bit stretches to outside the telescopic down via the sword hole.

Further, the nesting is a screw sleeve, the screw sleeve is in threaded connection with an inner cavity of the gear adjusting knob, and the ejection pin piece is in sliding connection with the inner cavity of the threaded sleeve.

Further, the gear stop structure includes the gear round pin, sets up in a plurality of gear holes of gear adjust knob's bottom face, the mounting hole of well loop bar is located to the concave and the second spring that sets up between the diapire of gear round pin and mounting hole, the one end and the mounting hole sliding connection of gear round pin, the other end and one of them gear hole joint of gear round pin, a plurality of gear holes are the annular distribution around gear adjust knob's the central axis equidistant.

Further, the gear stop structure further comprises a limiting part arranged on the bottom end face of the gear adjusting knob, and the limiting part is used for abutting against the gear pin.

Furthermore, a limiting hole is formed in the bottom end face of the gear adjusting knob, and one end of the limiting part is inserted into the limiting hole.

Furthermore, a linear bearing is embedded in the sliding hole, and an inner ring of the linear bearing is connected with the cutter head in a sliding mode.

Further, the inner cavity of the lower sleeve rod is provided with a lower threaded hole, the middle sleeve rod is provided with a lower threaded section, and the lower threaded section is in threaded connection with the lower threaded hole.

Furthermore, the outer side wall of the gear adjusting knob and/or the outer side wall of the lower loop bar are/is provided with anti-skid grains.

Further, the bottom of the ejector pin piece is provided with an interference step for interfering with the nesting.

Further, the top end of the screw rod sleeve is provided with a rotary groove.

The utility model has the beneficial effects that: after the assembly, the first spring provides upward elasticity for the sliding sleeve, and the ejection pin part downwards props against the sliding sleeve to limit the height position of the sliding sleeve in the sliding hole, so that the length of the cutter head which protrudes out of the cutter hole in the initial state is controlled. In practical application, when the length (the effective length of tool bit) that the tool bit stretches out to the tool hole needs to be adjusted, gear adjusting knob is rotated, upper thread section and upper thread hole threaded connection for gear adjusting knob can go up and down relative to the middle sleeve rod, and the gear adjusting knob that goes up and down drives ejecting pin spare and goes up and down, and under the elastic force effect of first spring, the sliding sleeve drives the tool bit and goes up and down, thereby realizes the regulation of tool bit effective length. According to the effective length of the required tool bit of user, under gear adjust knob's lift and gear card stop structure's cooperation, gear card stop structure stops gear adjust knob on the angle that required tool bit effective length corresponds, gear card stop structure stops gear adjust knob on the gear of required height promptly, with can be stable, accurately adjust the effective length of tool bit, and the user can be based on the work piece to different materials processing and adjust suitable tool bit effective length, and the operation is convenient, and is simple. When the tool bit needs to be replaced or disassembled, the ejection pin piece is pressed downwards, so that the ejection pin piece is relatively nested and moves downwards, the ejection pin piece moving downwards abuts against the sliding sleeve and is connected with the tool bit to move downwards, the sliding sleeve compresses the first spring, the tool bit moving downwards further protrudes out of the tool hole, at the moment, a user can pull the tool bit out of the fixing piece, and the tool bit is convenient to replace or disassemble. Under conventional state, fix the tool bit through the mounting, the piece is inhaled to the magnetism of rethread to the tool bit is inhaled to the magnetism to improve the stability of tool bit, avoid the tool bit to separate with the mounting easily. In addition, the top end face of the ejector head of the ejector pin piece is abutted against the bottom end face of the nesting, the nesting limits the ejector head of the ejector pin piece, the sliding sleeve is always abutted against the ejector head of the ejector pin piece under the elastic action of the first spring, so that the nesting can be loosened through the locking screw, and the highest height of the ejector head of the ejector pin piece abutted against the nesting is adjusted by adjusting the relative position of the nesting on the gear adjusting knob, so that the effective length of the tool bit is adjusted, and the effective length of the tool bit can be secondarily adjusted (finely adjusted); after the adjustment is finished, the nesting is locked on the gear adjusting knob through the locking screw, so that the position precision and the stability of the nesting are ensured. The gear type adjustable tool bit has the advantages of ingenious structural design, simple and convenient operation, and convenience in disassembly, assembly and replacement of the tool bit, and can realize the gear type adjustment of the effective length of the tool bit.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

Fig. 3 is an exploded view of the present invention.

FIG. 4 is an exploded view of another embodiment of the present invention.

Description of reference numerals:

1. a cutter head; 2. a lower loop bar; 3. a middle loop bar; 4. a gear adjusting knob; 5. nesting; 6. a sliding sleeve; 7. a magnetic member; 8. a fixing member; 9. a gear engaging structure; 10. ejecting the pin piece; 11. a first spring; 12. a locking screw; 13. an upper thread section; 14. an upper threaded hole; 15. a slide hole; 16. a knife hole; 17. a gear pin; 18. a gear hole; 19. mounting holes; 20. a second spring; 21. a limiting member; 22. a limiting hole; 23. a linear bearing; 24. a lower threaded hole; 25. a lower thread section; 26. anti-skid lines; 27. abutting against the step; 28. a rotating tank; 29. and a screw hole.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

As shown in fig. 1 to 4, the tool holder for a lettering machine of a detachable tool bit with adjustable gears provided by the utility model comprises a tool bit 1, a lower loop bar 2, a middle loop bar 3, a gear adjusting knob 4, a nesting 5, a sliding sleeve 6, a magnetic attraction piece 7, a fixing piece 8, a gear clamping structure 9, an ejection pin piece 10, a first spring 11 and a locking screw 12, wherein the bottom of the gear adjusting knob 4 is provided with an upper thread section 13, the middle loop bar 3 is axially provided with an upper threaded hole 14 and a sliding hole 15 in sequence, the upper thread section 13 is in threaded connection with the upper threaded hole 14, the nesting 5 is embedded in an inner cavity of the gear adjusting knob 4, the locking screw 12 is used for locking the nesting 5 to the gear adjusting knob 4, the ejection pin piece 10 is in sliding connection with the inner cavity of the nesting 5, the top and the bottom of the ejection pin piece 10 respectively protrude out of two ends of the nesting 5, the sliding sleeve 6 is arranged in the sliding hole 15, the magnetic attraction piece 7 and the fixing piece 8 are respectively embedded in the sliding sleeve 6, the bottom of the ejector pin piece 10 is used for abutting against the sliding sleeve 6, the bottom of the middle sleeve rod 3 is detachably connected with the lower sleeve rod 2, the gear clamping structure 9 is used for clamping a gear of the gear adjusting knob 4 relative to the lifting of the middle sleeve rod 3, the cutter head 1 and the first spring 11 are both positioned in a sliding hole 15, the top end of the cutter head 1 is connected with the fixing piece 8, the magnetic attraction piece 7 is used for magnetically attracting the cutter head 1, the first spring 11 is used for driving the sliding sleeve 6 to reset, the lower sleeve rod 2 is provided with a cutter hole 16, the bottom end of the cutter head 1 protrudes out of the lower sleeve rod 2 through the cutter hole 16, the cutter head 1 is made of a magnetic material, and the fixing piece 8 is a bearing; specifically, the top of the ejector pin 10 protrudes out of the shift knob 4.

After assembly, the first spring 11 provides an upward elastic force to the sliding sleeve 6, and the ejector pin 10 downwardly abuts against the sliding sleeve 6 to limit the height position of the sliding sleeve 6 in the sliding hole 15, thereby controlling the length of the cutter head 1 protruding out of the cutter hole 16 in the initial state. In practical application, when the length (the effective length of the tool bit 1) of the tool bit 1 protruding out of the tool hole 16 needs to be adjusted, the gear adjusting knob 4 is rotated, the upper thread section 13 is in threaded connection with the upper thread hole 14, so that the gear adjusting knob 4 can lift relative to the middle sleeve rod 3, the lifted gear adjusting knob 4 drives the ejection pin piece 10 to lift, and the sliding sleeve 6 drives the tool bit 1 to lift under the elastic action of the first spring 11, so that the effective length of the tool bit 1 is adjusted. According to the required effective length of tool bit 1 of user, under gear adjust knob 4's lift and gear card stop structure 9's cooperation, gear card stop structure 9 stops gear adjust knob 4 on the angle that required tool bit 1 effective length corresponds, gear card stop structure 9 stops gear adjust knob 4 on the gear of required height promptly, with can be stable, accurately adjust tool bit 1's effective length, and the user can process and adjust suitable tool bit 1 effective length according to the work piece to different materials, and the operation is convenient, and is simple. When the tool bit 1 needs to be replaced or disassembled, the ejector pin piece 10 is pressed downwards, so that the ejector pin piece 10 moves downwards relative to the nesting 5, the ejector pin piece 10 moving downwards pushes the sliding sleeve 6 to move downwards together with the tool bit 1, the sliding sleeve 6 compresses the first spring 11, the tool bit 1 moving downwards further protrudes out of the tool hole 16, at the moment, a user can pull the tool bit 1 out of the fixing piece 8, and the tool bit 1 can be replaced or disassembled conveniently. Under the conventional state, fix tool bit 1 through mounting 8, the piece 7 is inhaled to the rethread magnetism and is inhaled tool bit 1 magnetism to improve tool bit 1's stability, avoided tool bit 1 to separate with mounting 8 easily. In addition, the top end face of the ejector head of the ejector pin 10 is abutted against the bottom end face of the nest 5, the nest 5 limits the ejector head of the ejector pin 10, and the sliding sleeve 6 is always abutted against the ejector head of the ejector pin 10 under the action of the elastic force of the first spring 11, so that the nest 5 can be loosened through the locking screw 12, and the maximum height of the ejector head of the ejector pin 10 abutted against the nest 5 is adjusted by adjusting the relative position of the nest 5 on the gear adjusting knob 4, so that the effective length of the cutter head 1 is adjusted, and the effective length of the cutter head 1 can be secondarily adjusted (finely adjusted); after the adjustment is finished, the nesting 5 is locked on the gear adjusting knob 4 through the locking screw 12, so that the position precision and the stability of the nesting 5 are ensured. The adjustable gear type adjustable tool bit has the advantages of ingenious structural design, simple and convenient operation, and convenience in disassembly, assembly and replacement of the tool bit 1, and can realize the gear type adjustment of the effective length of the tool bit 1.

Specifically, the sliding sleeve 6 is a copper sleeve. The copper bush has long service life and is not easy to wear.

In this embodiment, the nest 5 is a screw sleeve, the screw sleeve is in threaded connection with an inner cavity of the gear adjusting knob 4, and the ejection pin 10 is in sliding connection with the inner cavity of the threaded sleeve. This structural design, nested 5 and gear adjust knob 4's firm in connection are difficult to become flexible, and the nested 5 of knob, can realize the regulation of nested 5 and gear adjust knob 4's relative position, and it is convenient to adjust.

In this embodiment, gear stop structure 9 includes gear round pin 17, sets up in a plurality of gear holes 18 of gear adjusting knob 4's bottom face, concavely establishes mounting hole 19 of well loop bar 3 and sets up second spring 20 between the diapire of gear round pin 17 and mounting hole 19, the one end and the mounting hole 19 sliding connection of gear round pin 17, the other end and one of them gear hole 18 joint of gear round pin 17, a plurality of gear holes 18 are the annular distribution around gear adjusting knob 4's the central axis equidistant ground. Preferably, the number of the gear holes 18 is nine, nine gear holes 18 correspond to one to nine gears respectively, and each gear corresponds to one effective length of the cutter head. Specifically, the gear adjusting knob 4 is provided with an plus-minus gear mark and a rotation direction mark. In practical application, when the effective length of tool bit 1 needs to be adjusted, gear adjusting knob 4 is rotated, gear adjusting knob 4 can lift well loop bar 3 relatively, according to the effective length of the actually required tool bit 1, the preset angle of gear adjusting knob 4 is rotated, gear hole 18 of the effective length of the required tool bit 1 on gear adjusting knob 4 corresponds to gear pin 17, second spring 20 provides elasticity for gear pin 17 at the moment, one end of gear pin 17 extends into corresponding gear hole 18 in a protruding manner, and adjustment of gears is achieved. Through the effective length of gear formula regulation tool bit 1, it is convenient to adjust, and this structural design, the sense of touch that the gear was adjusted is good, is favorable to the user to know clearly whether successfully to adjust the gear. In practical application, the effective length of the tool bit 1 is reasonably adjusted according to different materials of machined workpieces, and the practicability is high.

In this embodiment, the gear locking structure 9 further includes a limiting member 21 disposed on a bottom end surface of the gear adjusting knob 4, and the limiting member 21 is used for abutting against the gear pin 17; specifically, the limiting member 21 is a pin member. When gear adjust knob 4 adjusted a gear or nine gears, if the user still wanted down-shifting or the case of stepping up, locating part 21 can contradict with gear round pin 17 to carry on spacingly to gear round pin 17 and gear adjust knob 4, guarantee that gear adjust knob 4 can only be in one to nine gears internal rotation regulation, avoid gear adjust knob 4 to carry out 360 rotatory regulations and lead to the size that can't distinguish the place gear.

In this embodiment, a limiting hole 22 is formed in a bottom end surface of the gear adjusting knob 4, and one end of the limiting member 21 is inserted into the limiting hole 22; the other end of the limiting member 21 protrudes out of the limiting hole 22 and is used for abutting against the shift pin 17. This structural design, the dismouting of locating part 21 of being convenient for.

In this embodiment, the linear bearing 23 is embedded in the slide hole 15, the inner ring of the linear bearing 23 is slidably connected to the cutter head 1, and the bottom end of the first spring 11 abuts against the top end surface of the linear bearing 23. Through setting up linear bearing 23, the regulation of the lift of tool bit 1 of being convenient for reduces the frictional resistance that tool bit 1 received, and wearing and tearing are little.

In this embodiment, the inner cavity of the lower loop bar 2 is provided with a lower threaded hole 24, the middle loop bar 3 is provided with a lower threaded section 25, and the lower threaded section 25 is in threaded connection with the lower threaded hole 24. This structural design, be convenient for dismouting loop bar 2 and well loop bar 3 down, the firm in connection of loop bar 2 and well loop bar 3 down is also convenient for clear up 1 sweeps of tool bit.

In this embodiment, the outer side wall of the gear adjusting knob 4 and/or the outer side wall of the lower sleeve rod 2 are/is provided with anti-skid lines 26. The friction force is increased by arranging the anti-skid lines 26, so that the assembly and the adjustment are more labor-saving and convenient.

In this embodiment, the bottom of the ejector pin 10 is provided with an interference step 27, the interference step 27 is used for interfering with the nest 5, and the interference step 27 is a top end surface of the ejector head. This structural design has guaranteed the position accuracy and the stability of ejector pin spare 10, and the ejector pin spare 10 of being convenient for is ejecting with tool bit 1, and through adjusting the position of nested 5 in gear adjust knob 4 with can adjusting the high position of ejector pin spare 10 to the effective length of tool bit 1 can be adjusted.

In this embodiment, the top of screw rod cover is provided with rotary tank 28, rotary tank 28 sets up from the top of screw rod cover is sunken to form. Through the arrangement of the rotating groove 28, a user can conveniently rotate the screw sleeve by utilizing a workpiece (such as a screwdriver and the like), and the operation is convenient and labor-saving.

Specifically, the gear adjusting knob 4 is provided with a screw hole 29 in the radial direction, and the locking screw 12 is in threaded connection with the screw hole 29. The structural design facilitates the locking screw 12 to loosen or lock the screw sleeve.

Specifically, the clearance between the inner wall of the cutter hole 16 and the cutter head 1 is 0.5mm to 2 mm. The structural design reduces the clearance between the tool bit 1 and the inner wall of the tool hole 16, so that the waste scraps are reduced from entering the middle sleeve rod 3 or/and the lower sleeve rod 2, and the waste scrap blockage is reduced.

The above embodiments are preferred implementations of the present invention, and the present invention can be implemented in other ways without departing from the spirit of the present invention.

Claims

1. The utility model provides a removable tool bit of adjustable gear cutter holder for carving characters machine which characterized in that: the gear locking mechanism comprises a tool bit, a lower sleeve rod, a middle sleeve rod, a gear adjusting knob, a nesting sleeve, a sliding sleeve, a magnetic attraction piece, a fixing piece, a gear locking structure, an ejection pin piece, a first spring and a locking screw, wherein an upper threaded section is arranged at the bottom of the gear adjusting knob, an upper threaded hole and a sliding hole are sequentially arranged in the axial direction of the middle sleeve rod, the upper threaded section is in threaded connection with the upper threaded hole, the nesting sleeve is embedded in an inner cavity of the gear adjusting knob, the locking screw is used for locking the nesting sleeve in the gear adjusting knob, the ejection pin piece is in sliding connection with the nesting sleeve, the top and the bottom of the ejection pin piece respectively extend out of two ends of the nesting sleeve, the sliding sleeve is arranged in the sliding hole in a sliding manner, the magnetic attraction piece and the fixing piece are respectively embedded in the sliding sleeve, the bottom of the ejection pin piece is used for abutting against the sliding sleeve, the bottom of the middle sleeve rod is detachably connected with the lower sleeve rod, and the gear locking structure is used for locking the gear of the gear adjusting knob which is lifted relative to the middle sleeve rod, the utility model discloses a setting pole, including the tool bit, the sliding sleeve, the mounting is connected with the top of tool bit, the magnetic attraction piece is used for magnetism to inhale the tool bit, first spring is used for driving the sliding sleeve to reset, lower loop bar is provided with the tool hole, the bottom of tool bit stretches to outside lower loop bar via the tool hole.

2. The tool apron for the marking machine with the removable tool bit of adjustable gear of claim 1, characterized in that: the nested screw rod sleeve is connected with the inner cavity of the gear adjusting knob in a threaded mode, and the ejection pin piece is connected with the inner cavity of the threaded sleeve in a sliding mode.

3. The tool apron for the marking machine with the removable tool bit of adjustable gear of claim 1, characterized in that: the gear clamping and stopping structure comprises a gear pin, a plurality of gear holes arranged on the bottom end face of the gear adjusting knob, a mounting hole concavely arranged in the middle sleeve rod and a second spring arranged between the gear pin and the bottom wall of the mounting hole, one end of the gear pin is connected with the mounting hole in a sliding mode, the other end of the gear pin is connected with one of the gear holes in a clamping mode, and the plurality of gear holes are distributed in an annular mode at equal intervals around the central axis of the gear adjusting knob.

4. The tool apron for the marking machine with the removable tool bit of adjustable gear of claim 3, characterized in that: the gear clamping structure further comprises a limiting part arranged on the bottom end face of the gear adjusting knob, and the limiting part is used for abutting against the gear pin.

5. The tool apron for the marking machine with the removable tool bit of adjustable gear of claim 4, characterized in that: the bottom end face of the gear adjusting knob is provided with a limiting hole, and one end of the limiting part is inserted into the limiting hole.

6. The tool apron for the marking machine with the removable tool bit of adjustable gear of claim 1, characterized in that: the sliding hole is embedded with a linear bearing, and the inner ring of the linear bearing is connected with the cutter head in a sliding mode.

7. The tool apron for the marking machine with the removable tool bit of adjustable gear of claim 1, characterized in that: the inner cavity of the lower sleeve rod is provided with a lower threaded hole, the middle sleeve rod is provided with a lower threaded section, and the lower threaded section is in threaded connection with the lower threaded hole.

8. The tool apron for the marking machine with the removable tool bit of adjustable gear of claim 1, characterized in that: and anti-skid grains are arranged on the outer side wall of the gear adjusting knob and/or the outer side wall of the lower loop bar.

9. The tool apron for the marking machine with the removable tool bit of adjustable gear of claim 1, characterized in that: the bottom of the ejector pin piece is provided with an interference step which is used for interfering with the nesting.

10. The tool apron for the marking machine with the removable tool bit of adjustable gear of claim 2, characterized in that: the top of screw rod cover is provided with the rotary tank.