阅读说明：本技术 一种可调节自动换面的圆柱体金属雕刻装置 (Adjustable cylinder metal engraving device capable of automatically changing surface ) 是由 李家冬 于 2020-12-30 设计创作，主要内容包括：本发明公开了一种可调节自动换面的圆柱体金属雕刻装置,包括箱体,所述箱体顶端固定设置有开口向上的升降滑槽,所述升降滑槽内滑动连接有升降滑块,所述升降滑块上侧放置有齿条支撑滑块,所述齿条支撑滑块内上下均匀设置有五个开口向后的转角齿条槽,所述转角齿条槽内设置有按所需转角选用对应长度的转角齿条,所述转角齿条前端设置于固定卡槽内,所述固定卡槽固定设置于启动伸缩杆后端且开口向后,所述启动伸缩杆前侧设置有利用气动传输转角齿条的齿条动力机构,本发明能够在圆柱体金属进行雕刻时自动进行所需角度的调节,且能够利用简单的机构实现对换面角度的调控,根据所需转动角度自行更换对应长度的转角齿条。(The invention discloses an adjustable and automatic face-changing cylindrical metal engraving device, which comprises a box body, wherein a lifting chute with an upward opening is fixedly arranged at the top end of the box body, a lifting slide block is connected in the lifting chute in a sliding manner, a rack supporting slide block is arranged on the upper side of the lifting slide block, five corner rack grooves with backward openings are uniformly arranged in the rack supporting slide block from top to bottom, corner racks with corresponding lengths are selected according to required corners, the front ends of the corner racks are arranged in a fixed clamping groove, the fixed clamping groove is fixedly arranged at the rear end of a starting telescopic rod and has backward openings, a rack power mechanism for pneumatically transmitting the corner racks is arranged on the front side of the starting telescopic rod, the invention can automatically adjust the required angles when cylindrical metal is engraved, and can realize the adjustment and control of face-changing angles by using a simple mechanism, and automatically replacing the corner rack with the corresponding length according to the required rotating angle.)

1. The utility model provides an adjustable cylinder metal engraving device who trades face automatically, includes the box, its characterized in that: the lifting box is characterized in that a lifting chute with an upward opening is fixedly arranged at the top end of the box body, a lifting slider is connected in the lifting chute in a sliding manner, a rack supporting slider is placed on the upper side of the lifting slider, five corner rack grooves with a backward opening are uniformly arranged in the rack supporting slider from top to bottom, corner racks with corresponding lengths are selected according to required corners, the front ends of the corner racks are arranged in a fixed clamping groove, the fixed clamping groove is fixedly arranged at the rear end of a starting telescopic rod and has a backward opening, a rack power mechanism for pneumatically transmitting the corner racks is arranged at the front side of the starting telescopic rod, a lifting telescopic air bag is fixedly connected between the bottom surface of the lifting slider and the lifting chute, a rack chute with a forward opening is fixedly arranged at the rear end wall of the lifting chute, and a gear groove, the utility model discloses a pneumatic solid-state surface acoustic wave device, including gear groove, gear shaft, fixed cylinder, fixed shaft bottom wall, fixed shaft bottom.

2. The adjustable cylindrical metal engraving device capable of automatically changing the surface as claimed in claim 1, wherein: the gear shaft with the box rotates to be connected, the integral key shaft rotates with the supporting slide block to be connected, the supporting slide block sets up in the supporting slide block spout and rather than sliding connection, supporting slide block left end face with through supporting slide block spring coupling between the supporting slide block spout, the fixed electromagnetism magnet ring that is provided with of supporting slide block spout right-hand member wall, sculpture chamber top is provided with the burin device, front and back the trachea bottom mounting along separate routes is provided with the breather piece spout, sliding connection has the breather piece in the breather piece spout, breather piece rear end face with through breather piece spring coupling between the breather piece spout, the fixed electro-magnet of taking a breath that is provided with of breather piece spout front end wall, the symmetry is provided with two communicating through-holes from top to bottom in the breather piece, breather piece spout downside is provided with quick reset mechanism.

3. The adjustable cylindrical metal engraving device capable of automatically changing the surface as claimed in claim 1, wherein: the rack power mechanism comprises a connecting air pipe fixedly connected with the front end of the starting telescopic rod, a power air pressure cavity is fixedly arranged at the front end of the connecting air pipe, a power piston is connected in the power air pressure cavity in a sliding mode, the rear end face of the power piston is connected with the power air pressure cavity through a power piston spring, a sliding through groove with a forward opening is fixedly arranged on the front end wall of the power air pressure cavity, an electric push rod located on the front side of the rack sliding groove is arranged at the front end of the lifting sliding groove, and the electric push rod can be connected with the sliding through groove in a sliding mode.

4. The adjustable cylindrical metal engraving device capable of automatically changing the surface as claimed in claim 1, wherein: the clamping mechanism comprises a clamping groove fixedly arranged at the top end of the supporting base and provided with an upward opening, the left end wall of the clamping groove is fixedly provided with an opening leftwards and can be connected with the adsorption device in a sliding manner, the bottom wall and the side wall of the clamping groove are fixedly provided with expansion clamping air bags, the bottom ends of the expansion clamping air bags are fixedly provided with control air pipes, the control air pipes are connected with air pump power, and the bottom end of the control air pipes is fixedly provided with an air storage cavity.

5. The adjustable cylindrical metal engraving device capable of automatically changing the surface as claimed in claim 1, wherein: the buffering intermittent mechanism comprises an exhaust pipe fixedly arranged on the bottom wall of the sliding groove of the air exchange block, a one-way valve is arranged in the exhaust pipe, an intermittent air pressure cavity is fixedly arranged at the front end of the exhaust pipe, an intermittent piston is connected in the intermittent air pressure cavity in a sliding manner, the top surface of the intermittent piston is connected with the intermittent air pressure cavity through an intermittent piston spring, a reciprocating rack is fixedly arranged on the top surface of the intermittent piston, the reciprocating rack is arranged in a reciprocating rack groove with a downward opening and is connected with the reciprocating rack groove in a sliding manner, the reciprocating rack can be meshed and connected with a front incomplete gear positioned on the front side of the reciprocating rack, the front incomplete gear is arranged in an incomplete gear groove with a backward opening, the front incomplete gear is fixedly connected with an incomplete gear shaft, the incomplete gear shaft is rotatably connected with the box body, the intermittent gear is arranged in the gear cavity, the intermittent gear can be meshed with a rear incomplete gear located on the front side of the intermittent gear, the rear incomplete gear is fixedly connected with a motor shaft, the motor shaft is rotatably connected with the box body, and the motor shaft is in power connection with a motor.

6. The adjustable cylindrical metal engraving device capable of automatically changing the surface as claimed in claim 2, wherein: the quick reset mechanism comprises a reset air pipe fixedly arranged on the bottom wall of the air exchange block sliding groove and located on the rear side of the exhaust pipe, a one-way valve is arranged in the reset air pipe, a reset air pressure cavity is fixedly arranged on the bottom wall of the reset air pipe, a reset piston is slidably connected in the reset air pressure cavity, the bottom surface of the reset piston is connected with the reset air pressure cavity through a reset piston spring, an exhaust pipe is fixedly arranged on the top wall of the front end of the reset air pressure cavity, the one-way valve is arranged in the exhaust pipe, and the top end of the exhaust pipe is fixedly connected with the bottom wall of the.

Technical Field

The invention relates to the technical field of metal engraving, in particular to an adjustable and automatic surface-changing cylindrical metal engraving device.

Background

The metal sculpture is made of various metal materials, and the process is various, and a metal casting process, a forging process of the metal sculpture and the like are commonly used.

When cylindrical metal in the current stage is carved, the surface needs to be changed frequently to meet the carving requirement, the clamping device needs to be manually operated to loosen and clamp, the efficiency is low, the regulation and control of the surface changing angle cannot be realized by using a simple mechanism, the manual operation is easy to make mistakes, and the error rate is high or the cost is high.

Disclosure of Invention

Aiming at the technical defects, the invention provides an adjustable cylindrical metal engraving device capable of automatically changing the surface, which can overcome the defects.

The invention relates to an adjustable automatic face-changing cylindrical metal engraving device, which comprises a box body, wherein a lifting chute with an upward opening is fixedly arranged at the top end of the box body, a lifting slide block is connected in the lifting chute in a sliding manner, a rack supporting slide block is arranged on the upper side of the lifting slide block, five corner rack grooves with backward openings are uniformly arranged in the rack supporting slide block from top to bottom, corner racks with corresponding lengths are selected according to required corners, the front ends of the corner racks are arranged in a fixed clamping groove, the fixed clamping groove is fixedly arranged at the rear end of a starting telescopic rod and has backward openings, a rack power mechanism for pneumatically transmitting the corner racks is arranged on the front side of the starting telescopic rod, a lifting telescopic air bag is fixedly connected between the bottom surface of the lifting slide block and the lifting chute, a rack chute with a forward opening is fixedly arranged on, the fixed gear groove that is provided with the opening downwards of rack chute roof, the gear inslot is provided with the corner gear, corner gear and gear shaft fixed connection, the gear shaft right side is provided with the rotation fixed establishment that adsorbs the fixed cylinder metal when changing the face of rotation, rotate fixed establishment include with gear shaft right-hand member sliding connection's integral key shaft, the fixed adsorption equipment that is provided with of integral key shaft right-hand member, the adsorption equipment right-hand member is provided with the sculpture chamber, the fixed support base that is provided with of sculpture chamber diapire, it utilizes gaseous self-holding's fixture when rotating when changing the face to relax automatically when sculpture to support to be provided with in the base, the fixed trachea that is provided with two shunts of back symmetry around the lift flexible gasbag bottom, lift spout front side is provided with the buffering intermittent type mechanism that utilizes.

Preferably, the gear shaft with the box rotates to be connected, the integral key shaft rotates with the supporting slide block to be connected, the supporting slide block sets up in the supporting slide block spout and rather than sliding connection, the supporting slide block left end face with through supporting slide block spring coupling between the supporting slide block spout, the fixed electromagnetism magnet ring that is provided with of supporting slide block spout right-hand member wall, sculpture chamber top is provided with the burin device, front and back the trachea bottom mounting along separate routes is provided with the piece spout of taking a breath, it has the piece of taking a breath to slide connection in the piece spout of taking a breath, the piece rear end face of taking a breath with through the piece spring coupling of taking a breath between the piece spout, the fixed electro-magnet that takes a breath that is provided with of piece spout front end wall of taking a breath, the symmetry is provided with communicating through-hole about.

Preferably, the rack power mechanism comprises a connecting air pipe fixedly connected with the front end of the starting telescopic rod, a power air pressure cavity is fixedly arranged at the front end of the connecting air pipe, a power piston is connected in the power air pressure cavity in a sliding mode, the rear end face of the power piston is connected with the power air pressure cavity through a power piston spring, a sliding through groove with a forward opening is fixedly arranged on the front end wall of the power air pressure cavity, an electric push rod located on the front side of the rack sliding groove is arranged at the front end of the lifting sliding groove, and the electric push rod can be connected with the sliding through groove in a sliding mode.

Preferably, the clamping mechanism comprises a clamping groove fixedly arranged at the top end of the support base and provided with an upward opening, the left end wall of the clamping groove is fixedly provided with a through groove which is provided with a leftward opening and can be in sliding connection with the adsorption device, the bottom wall and the side wall of the clamping groove are fixedly provided with an expansion clamping air bag, the bottom end of the expansion clamping air bag is fixedly provided with a control air pipe, the control air pipe is in power connection with an air pump, and the bottom end of the control air pipe is fixedly provided with an air storage cavity.

Preferably, the buffering intermittent mechanism comprises an exhaust pipe fixedly arranged on the bottom wall of the sliding groove of the air exchange block, a one-way valve is arranged in the exhaust pipe, an intermittent air pressure cavity is fixedly arranged at the front end of the exhaust pipe, an intermittent piston is connected in the intermittent air pressure cavity in a sliding manner, the top surface of the intermittent piston is connected with the intermittent air pressure cavity through an intermittent piston spring, a reciprocating rack is fixedly arranged on the top surface of the intermittent piston, the reciprocating rack is arranged in a reciprocating rack groove with a downward opening and is connected with the reciprocating rack groove in a sliding manner, the reciprocating rack can be meshed and connected with a front incomplete gear positioned on the front side of the reciprocating rack, the front incomplete gear is arranged in an incomplete gear groove with a backward opening, the front incomplete gear is fixedly connected with an incomplete gear shaft, the incomplete gear shaft is rotatably connected with the box body, the intermittent gear is arranged in the gear cavity, the intermittent gear can be meshed with a rear incomplete gear located on the front side of the intermittent gear, the rear incomplete gear is fixedly connected with a motor shaft, the motor shaft is rotatably connected with the box body, and the motor shaft is in power connection with a motor.

Preferably, quick reset mechanism including fixed set up in what trades the tuber pipe spout diapire just is located the trachea that resets of exhaust tube rear side, be provided with the check valve in the trachea that resets, the fixed atmospheric pressure chamber that resets that is provided with of trachea diapire that resets, it has the piston that resets to reset in the atmospheric pressure chamber sliding connection, reset piston bottom surface with through reset piston spring coupling between the atmospheric pressure chamber that resets, the fixed blast pipe that is provided with of atmospheric pressure chamber front end top wall resets, be provided with the check valve in the blast pipe, the blast pipe top with intermittent type atmospheric pressure chamber diapire fixed connection.

The beneficial effects are that: the device can automatically adjust the required angle when cylindrical metal is carved, so that the requirement of frequently changing the surface to meet the carving is met, the clamping device is automatically released and clamped by using gas, manual operation is not needed, the efficiency is improved, the regulation and control of the surface changing angle can be realized by using a simple mechanism, the corner rack with the corresponding length is automatically changed according to the required rotating angle, the error rate is low, the cost is higher, the cost is lower, the operation is simple, and the structure is simple.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic structural view of an adjustable and automatically surface-replaceable cylindrical metal engraving device according to the present invention;

FIG. 2 is a schematic view of A-A in FIG. 1 according to an embodiment of the present invention;

FIG. 3 is a partial schematic view of B-B in FIG. 2 according to an embodiment of the present invention;

fig. 4 is an enlarged schematic view of the structure at C in fig. 2 according to the embodiment of the present invention.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

The invention will now be described in detail with reference to fig. 1-4, for convenience of description, the following orientations will now be defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The invention relates to an adjustable automatic face-changing cylindrical metal engraving device, which comprises a box body 10, wherein a lifting chute 45 with an upward opening is fixedly arranged at the top end of the box body 10, a lifting slide block 29 is connected in the lifting chute 45 in a sliding manner, a rack supporting slide block 64 is arranged on the upper side of the lifting slide block 29, five corner rack grooves 63 with backward openings are uniformly arranged in the rack supporting slide block 64 from top to bottom, a corner rack 62 with a corresponding length according to a required corner is arranged in each corner rack groove 63, the front end of each corner rack 62 is arranged in a fixed clamping groove 65, the fixed clamping groove 65 is fixedly arranged at the rear end of a starting telescopic rod 66 and has a backward opening, a rack power mechanism for pneumatically transmitting the corner rack is arranged at the front side of the starting telescopic rod 66, and a lifting telescopic air bag 46 is fixedly connected between the bottom surface of, the rear end wall of the lifting chute 45 is fixedly provided with a rack chute 28 with a forward opening, the top wall of the rack chute 28 is fixedly provided with a gear groove 11 with a downward opening, a corner gear 12 is arranged in the gear groove 11, the corner gear 12 is fixedly connected with a gear shaft 25, the right side of the gear shaft 25 is provided with a rotary fixing mechanism for adsorbing and fixing cylindrical metal during rotary face changing, the rotary fixing mechanism comprises a spline shaft 26 which is in sliding connection with the right end of the gear shaft 25, the right end of the spline shaft 26 is fixedly provided with an adsorption device 17, the right end of the adsorption device 17 is provided with a carving cavity 19, the bottom wall of the carving cavity 19 is fixedly provided with a support base 21, a clamping mechanism which automatically clamps when automatically releasing and carving during rotary face changing by using gas is arranged in the support base 21, and two branch gas pipes 47 are symmetrically and, a buffering intermittent mechanism for transmitting the rack in an intermittent manner according to time by utilizing pneumatic power is arranged on the front side of the lifting chute 45.

Beneficially, the gear shaft 25 is rotatably connected with the box body 10, the spline shaft 26 is rotatably connected with the support slider 14, the support slider 14 is disposed in the support slider sliding groove 15 and is slidably connected therewith, the left end surface of the support slider 14 is connected with the support slider sliding groove 15 through the support slider spring 13, the right end wall of the support slider sliding groove 15 is fixedly provided with the electromagnet ring 16, the top end of the engraving cavity 19 is provided with the graver device 18, the bottom ends of the front and rear branch air pipes 47 are fixedly provided with the ventilation block sliding groove 50, the ventilation block sliding groove 50 is slidably connected with the ventilation block 49, the rear end surface of the ventilation block 49 is connected with the ventilation block sliding groove 50 through the ventilation block spring 44, the front end wall of the ventilation block sliding groove 50 is fixedly provided with the ventilation electromagnet 51, and two through holes 48 which are vertically communicated are symmetrically disposed in the ventilation block 49 in the front, the lower side of the air exchange block sliding groove 50 is provided with a quick reset mechanism.

Beneficially, the rack power mechanism includes a connecting air pipe 61 fixedly connected to the front end of the starting telescopic rod 66, the front end of the connecting air pipe 61 is fixedly provided with a power air pressure cavity 60, a power piston 68 is slidably connected to the power air pressure cavity 60, the rear end face of the power piston 68 is connected to the power air pressure cavity 60 through a power piston spring 67, the front end wall of the power air pressure cavity 60 is fixedly provided with a sliding through groove 59 with a forward opening, the front end of the lifting sliding groove 45 is provided with an electric push rod 30 located at the front side of the rack sliding groove 28, and the electric push rod 30 can be slidably connected to the sliding through groove 59.

Beneficially, the clamping mechanism includes a clamping groove 27 fixedly arranged at the top end of the supporting base 21 and having an upward opening, a through groove 24 having a leftward opening and capable of being slidably connected with the adsorption device 17 is fixedly arranged on the left end wall of the clamping groove 27, an inflatable clamping air bag 20 is fixedly arranged on the bottom wall and the side wall of the clamping groove 27, a control air pipe 23 is fixedly arranged at the bottom end of the inflatable clamping air bag 20, the control air pipe 23 is in power connection with an air pump 22, and an air storage chamber 69 is fixedly arranged at the bottom end of the control air pipe 23.

Advantageously, the buffering intermittent mechanism comprises an air suction pipe 52 fixedly arranged on the bottom wall of the air change block sliding chute 50, a one-way valve is arranged in the air suction pipe 52, an intermittent air pressure cavity 37 is fixedly arranged at the front end of the air suction pipe 52, an intermittent piston 38 is slidably connected in the intermittent air pressure cavity 37, the top surface of the intermittent piston 38 is connected with the intermittent air pressure cavity 37 through an intermittent piston spring 36, a reciprocating rack 35 is fixedly arranged on the top surface of the intermittent piston 38, the reciprocating rack 35 is arranged in a reciprocating rack groove 32 with a downward opening and is slidably connected with the same, the reciprocating rack 35 can be engaged and connected with a front incomplete gear 34 positioned on the front side of the reciprocating rack 35, the front incomplete gear 34 is arranged in an incomplete gear groove 33 with a rearward opening, the front incomplete gear 34 is fixedly connected with an incomplete gear shaft 55, and the incomplete gear shaft 55 is rotatably connected, the right end of the incomplete gear shaft 55 is fixedly provided with an intermittent gear 57, the intermittent gear 57 is arranged in the gear cavity 56, the intermittent gear 57 can be meshed with a rear incomplete gear 58 positioned on the front side of the intermittent gear 57, the rear incomplete gear 58 is fixedly connected with the motor shaft 53, the motor shaft 53 is rotatably connected with the box body 10, and the left end of the motor shaft 53 is dynamically connected with the motor 54.

Beneficially, quick reset mechanism including fixed set up in that what trades gas piece spout 50 diapire just is located the trachea 43 that resets of exhaust tube 52 rear side, be provided with the check valve in the trachea 43 that resets, the trachea 43 diapire that resets is fixed to be provided with the atmospheric pressure chamber 40 that resets, sliding connection has the piston 42 that resets in the atmospheric pressure chamber 40 that resets, reset piston 42 bottom surface with reset and connect through reset piston spring 41 between the atmospheric pressure chamber 40, the fixed blast pipe 39 that is provided with in the atmospheric pressure chamber 40 front end top wall that resets, be provided with the check valve in the blast pipe 39, blast pipe 39 top with intermittent type atmospheric pressure chamber 37 diapire fixed connection.

In the initial state, the lifting telescopic air bag 46 is in a stretched state, and the support slider spring 13, the ventilation block spring 44, the expansion chucking air bag 20, the power piston spring 67, the intermittent piston spring 36 and the return piston spring 41 are in a normal state;

sequence of mechanical actions of the whole device:

1. placing a to-be-carved cylindrical metal into the clamping groove 27, starting the air pump 22, controlling the air pump 22 to pump air in the air storage cavity 69 into the expansion clamping air bag 20, so that the expansion clamping air bag 20 expands to clamp the to-be-carved cylindrical metal, controlling the graver device 18 to carve, taking out the rack support sliding block 64 upwards, closing the rear ends of the upper and lower five starting telescopic rods 66, taking out the upper and lower five corner racks 62, selecting the corner rack 62 with the corresponding length according to the angle required to rotate along with time, placing the front end of the corner rack 62 with the corresponding length into the fixed clamping groove 65 backwards according to time, and fixing the corner rack 62 by starting the rear ends of the upper and lower five starting telescopic rods 66, so that the corner rack 62 moves along with the rear end of the starting telescopic rod 66, and placing the rack support sliding block 64 downwards on the upper side;

2. the motor 54 is started to rotate the motor shaft 53, thereby rotating the rear incomplete gear 58, thereby intermittently engaging and connecting the intermittent gear 57 with the rear incomplete gear 58, thereby intermittently rotating the intermittent gear 57, thereby intermittently rotating the incomplete gear shaft 55, thereby intermittently rotating the front incomplete gear 34, thereby intermittently engaging and connecting the front incomplete gear 34 with the reciprocating rack 35, thereby repeatedly moving the reciprocating rack 35 and the intermittent piston 38 up and down under the combined action of the intermittent piston spring 36 and the front incomplete gear 34, thereby moving the intermittent piston 38 up to draw a certain amount of gas in the lifting and contracting air bag 46 into the intermittent air pressure chamber 37 through the suction pipe 52, the front through hole 48 and the front branch air pipe 47, thereby intermittently moving the lifting slider 29 down by a certain distance, thereby intermittently moving the rack support slider 64 down by a certain distance, the intermittent piston 38 moves downward to press the gas in the intermittent pneumatic chamber 37 into the reset pneumatic chamber 40 through the gas exhaust pipe 39, thereby moving the reset piston 42 downward;

3. when the time of surface changing is reached, the air pump 22 is controlled to pump the air in the expansion clamping air bag 20 into the air storage chamber 69 through the control air pipe 23, so that the air pump 22 is contracted, the cylindrical metal is loosened, the electromagnet ring 16 is switched on, the support slider 14 is attracted to move rightwards, the spline shaft 26 and the adsorption device 17 are moved rightwards, the adsorption device 17 is started to adsorb and fix the cylindrical metal, the corresponding corner rack groove 63 moves to the front side of the rack sliding groove 28 and stops, the electric push rod 30 is controlled to extend backwards, so that the corresponding power piston 68 is pushed to move backwards, the air in the power air pressure chamber 60 is input into the starting telescopic rod 66 through the connecting air pipe 61, the rear end of the starting telescopic rod 66 and the corner rack 62 move backwards, the corresponding corner rack 62 moves backwards and is meshed with the corner gear 12 to be connected, so that the corner gear 12 rotates by a certain angle, so that the gear shaft 25 rotates a certain angle, the spline shaft 26 rotates a certain angle, the adsorption device 17 drives the cylindrical metal to rotate a certain angle, after the rotation is finished, the adsorption device 17 is closed, the air pump 22 is controlled to pump the air in the air storage chamber 69 into the expansion clamping air bag 20, so that the expansion clamping air bag 20 expands to clamp the cylindrical metal, the electromagnet ring 16 is disconnected, the spline shaft 26 and the adsorption device 17 move leftwards under the reset action of the support slider spring 13, the lifting slider 29 and the rack support slider 64 continue to move downwards, the corner rack 62 is disengaged from the corner gear 12, the electric push rod 30 is controlled to contract, so that the power piston 68 moves forwards under the reset action of the power piston spring 67, the starting telescopic rod 66 contracts, and the corner rack 62 moves forwards to the corner rack groove 63;

4. when the device needs to be reset, the engraving is finished, the graver device 18 is closed, the air pump 22 is controlled to pump the air expanded in the clamping air bag 20 into the air storage cavity 69 through the control air pipe 23, so that the air pump 22 is contracted, the cylindrical metal is loosened, the engraved cylindrical metal is taken out, the air pump 22 is closed, the motor 54 is closed, so that each moving part stops moving, each elastic element plays a resetting role, the air exchange electromagnet 51 is switched on, so that the air exchange block 49 moves forwards, so that the rear side through hole 48 is communicated with the rear side branch air pipe 47 and the reset air pipe 43, so that the reset piston 42 moves upwards under the resetting function of the reset piston spring 41, so that the lifting telescopic air bag 46 quickly extends, the lifting slide block 29 and the rack support slide block 64 quickly move upwards, the electromagnet 51 is switched off, so that the air exchange block 49 moves backwards under the resetting function of the air exchange block spring 44, the device completes the reset.

The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.