阅读说明：本技术 一种快速切换的手持式气动雕刻机 (Hand-held type pneumatic engraver of fast switch over ) 是由 古拥彪 于 2021-01-07 设计创作，主要内容包括：本发明公开了一种快速切换的手持式气动雕刻机,包括主壳,所述主壳中设有进气腔、出气腔、位于所述出气腔下侧的主运动腔和位于所述主运动腔下端且与所述主运动腔连通的敲击腔,所述主运动腔中滑动连接有冲击板,所述冲击板下端固定连接有传递座且所述传递座向下穿过对应所述主壳伸出至外部,所述传递座与所述主壳之间为滑动连接,该装置结构简单造价相对便宜,操作便捷,装置的结构经凑较为便携,占用空间小也提高了手持操作的自由度,装置内部的结构较为简单,方便后期的维护以及保养,装置使用气泵驱动,比较直接通电的装置更为安全且防水无需担心漏电等问题。(The invention discloses a fast-switching handheld pneumatic carving machine which comprises a main shell, wherein an air inlet cavity, an air outlet cavity, a main motion cavity positioned on the lower side of the air outlet cavity and a knocking cavity positioned at the lower end of the main motion cavity and communicated with the main motion cavity are arranged in the main shell, an impact plate is connected in the main motion cavity in a sliding manner, the lower end of the impact plate is fixedly connected with a transfer seat, the transfer seat downwards penetrates through the corresponding main shell to extend out, the transfer seat is connected with the main shell in a sliding manner, the device simple structure cost is cheap relatively, the simple operation, and the structure of device is through gathering together comparatively portablely, and occupation space is little also has improved the degree of freedom of handheld operation, and the inside structure of device is comparatively simple, makes things convenient for the maintenance and the maintenance in later stage, and the device uses the air pump drive, and the device of more direct circular telegram is safer and waterproof need not worry electric leakage scheduling problem.)

1. The utility model provides a hand-held type pneumatic engraver of fast switch-over, includes the main casing, its characterized in that: the main shell is internally provided with an air inlet cavity, an air outlet cavity, a main motion cavity positioned on the lower side of the air outlet cavity and a knocking cavity positioned at the lower end of the main motion cavity and communicated with the main motion cavity, the main motion cavity is internally and slidably connected with an impact plate, the lower end of the impact plate is fixedly connected with a transmission seat, the transmission seat downwards penetrates through the main shell to extend out of the main shell, the transmission seat is slidably connected with the main shell, the lower end of the transmission seat is fixedly connected with an engraving head for engraving a workpiece, a buffer spring is fixedly connected between the lower end of the impact plate and the lower cavity wall of the knocking cavity, a main motion mechanism is arranged in the main motion cavity and comprises an impact seat slidably connected in the main motion cavity, an air cylinder cavity is arranged in the impact seat, the upper cavity wall of the air cylinder cavity is slidably connected with a piston sleeve, the upper end of the piston sleeve extends into the main motion cavity and is fixedly connected with the upper cavity wall of the main motion cavity, the lower part of the ventilation cavity extends into the cylinder cavity and is fixedly connected with a piston O-ring at a proper position, the piston O-ring is tightly attached to the cavity wall of the cylinder cavity to ensure air tightness and form sliding connection, a part of the excircle of the proper position of the lower side part of the piston sleeve is protruded, and a return spring is fixedly connected between the excircle and the upper cavity wall of the cylinder cavity, a vent hole communicated with the air outlet cavity is arranged in the lower cavity wall of the air outlet cavity, a vent cavity with an upper opening and a lower opening is arranged in the piston sleeve, the vent cavity is communicated with the vent hole, a return spring with an upward opening is arranged at the center of the lower cavity wall of the cylinder cavity, two air release ports are arranged in the lower cavity wall of the return spring, fixedly connected with pressure spring just on the chamber wall under the reset spring pressure spring upper end fixedly connected with pneumatic plate, pneumatic plate lower extreme fixedly connected with can plug up the closure the stifled gas rubber ring of disappointing the mouth.

2. The hand-held fast-switching pneumatic engraver as claimed in claim 1, wherein: a striking rod cavity and a spring cavity positioned at the upper side of the striking rod cavity are arranged in the right cavity wall of the main motion cavity, an annular ring cavity is arranged on the outer ring of the main motion cavity at a proper position of the main shell positioned at the lower side of the striking rod cavity, an annular ring plate is connected in the ring cavity in a sliding way, a jacking spring is fixedly connected between the lower end of the ring plate and the lower cavity wall of the ring cavity, a buckling block is fixedly connected at a proper position on the upper end surface of the circular ring plate, penetrates through the corresponding main shell and extends into the striking rod cavity, a driving rod fixing shaft is rotatably connected between the front cavity wall and the rear cavity wall of the driving rod cavity, a driving rod is rotatably connected on the driving rod fixing shaft, the striking rod is provided with a buckling groove corresponding to the buckling block, the striking rod is further rotatably connected with a lubricating wheel fixing shaft, the lubricating wheel fixing shaft is rotatably connected with a lubricating wheel, and a striking rod spring piece is fixedly connected between the striking rod and the corresponding cavity wall of the striking rod cavity.

3. The hand-held fast-switching pneumatic engraver as claimed in claim 1, wherein: the upper cavity wall of the striking rod cavity is internally and slidably connected with a gas cutting control rod, the lower end of the gas cutting control rod extends into the striking rod cavity and contacts with the striking rod, a proper position on the striking rod is also and fixedly connected with a protruding block to be matched with the gas cutting control rod, the gas cutting control rod penetrates through the spring cavity and is fixedly connected with a clamping spring piece in the spring cavity, an air valve rod is fixedly connected between the upper end of the clamping spring piece and the upper cavity wall of the spring cavity, the gas cutting control rod upwards penetrates through the air outlet cavity and the upper cavity wall of the air outlet cavity and extends into the air inlet cavity, an air outlet is also arranged on the lower cavity wall of the air inlet cavity and corresponding to the gas cutting control rod and is used for communicating the air inlet cavity and the air outlet cavity, a gas valve ring capable of sealing the air outlet is fixedly connected to the gas cutting control rod, and a gas sealing ring is also fixedly connected to the lower cavity wall of the air outlet cavity at a proper position where the gas, the airtight ring is in sliding connection with the air cutting control rod.

4. The hand-held fast-switching pneumatic engraver as claimed in claim 1, wherein: the main shell is also provided with a gas cutting control cavity at a proper position at the upper right side of the spring cavity, a trigger rod bottom cavity is also arranged in the lower cavity wall of the knocking cavity, a lower sliding plate is connected in the trigger rod bottom cavity in a sliding manner, a trigger rod reset spring is fixedly connected between the lower sliding plate and the lower cavity wall of the trigger rod bottom cavity, the upper end of the left side of the trigger rod bottom cavity is fixedly connected with an extension rod, the extension rod penetrates through the main shell correspondingly and extends into the knocking cavity, the right side of the upper end surface of the lower sliding plate is also fixedly connected with a gas cutting block trigger rod, the gas cutting block trigger rod penetrates upwards and corresponds to the main shell and extends into the gas cutting control cavity, a rotary fixed shaft is rotatably connected between the front cavity wall and the rear cavity wall of the gas cutting control cavity and is fixedly connected with a gas cutting control block on the rotary fixed shaft, and a gas cutting spring piece is fixedly connected between the gas cutting, the right end of the lower side part of the gas cutting control block is matched with the middle part of the gas cutting block trigger rod in the gas cutting control cavity, a gas cutting groove with an opening towards one side of the gas cutting control cavity is formed in the right end of the gas cutting control rod at a proper position, and the gas cutting groove can be matched with the left side part of the gas cutting control block to be clamped.

5. The hand-held fast-switching pneumatic engraver as claimed in claim 1, wherein: the outer ring of the proper position of the main shell is provided with a switch ring groove, the main shell in the cavity wall of the left side of the main motion cavity is also provided with a main control cavity communicated with the switch ring groove and the main motion cavity, the switch ring groove is connected with a switch board fixedly connected with the outer surface of a ring sleeve which is a ring sleeve, the proper position of the inner wall of the right part of the ring sleeve is fixedly connected with a driving rod, the driving rod is connected with a driven seat in a sliding way, the driven seat is provided with a driving blind hole with a leftward opening and is connected with the driving rod in a sliding way, the right end of the driven seat is fixedly connected with a driven block between the ring sleeve and the driven seat, the right part of the driven seat extends into the main motion cavity and is fixedly connected with a bevel board fixing shaft on the driven seat, and the bevel board fixing shaft is connected with a bevel board in, an ejection spring cavity with a rightward opening is further formed in a proper position in the right end face of the driven seat, an inclined ejection rod with one end extending out of contact with the inclined plane plate is connected in the ejection spring cavity in a sliding mode, and an ejection spring is fixedly connected between the inclined ejection rod and the left cavity wall of the ejection spring cavity.

6. The hand-held fast-switching pneumatic engraver as claimed in claim 1, wherein: the upper end face of the left side portion of the circular ring plate is fixedly connected with a lower push rod, the upper end of the lower push rod penetrates through the main shell and extends into the main control cavity, a spring blind hole with an upward opening is formed in the upper end face of the lower push rod, a protruding block is connected in the spring blind hole in a sliding mode, a strong spring is fixedly connected between the lower end of the protruding block and the lower cavity wall of the spring blind hole, a lower ejection head is fixedly connected to the proper position of the lower end of the driven seat, and the lower ejection head is aligned with the protruding block in a natural relaxation state of each spring.

7. The hand-held fast-switching pneumatic engraver as claimed in claim 1, wherein: the air inlet adapter is fixedly connected to the upper side of the main shell and is used for communicating an air pipe of an air compressor, and the air inlet adapter is communicated with the air inlet cavity.

Technical Field

The invention relates to the field related to machine engraving, in particular to a fast-switching handheld pneumatic engraving machine.

Background

When materials with higher hardness are carved, a knocking impact mode is sometimes adopted for carving, and if a lighter machine generates impact feeling like an impact drill to carve instead of manually carving by holding a chisel with one hand and a hammer with one hand, the carving is undoubtedly easy;

the control of the number of impacts of the devices for engraving is sometimes very important, because it is sometimes necessary to control the precision of the engraved finished product, to perform slow-and-slow-knocking engraving at once, to perform a lot of blanking, to perform fast and continuous engraving to improve the efficiency, but it is particularly difficult to switch the engraving devices in such a way that the engraving devices are continuous or intermittent.

Disclosure of Invention

The invention aims to solve the technical problem of providing a fast-switching handheld pneumatic engraving machine, which solves the problems that the engraving equipment needs word impact or continuous impact to be switched difficultly and the like, and realizes the fast switching of the working mode of an impact type engraving pen by hand feeling.

The invention is realized by the following technical scheme.

The invention relates to a fast-switching handheld pneumatic carving machine which comprises a main shell, wherein an air inlet cavity, an air outlet cavity, a main motion cavity and a knocking cavity, wherein the main motion cavity is positioned on the lower side of the air outlet cavity, the knocking cavity is positioned on the lower end of the main motion cavity and is communicated with the main motion cavity, an impact plate is connected in the main motion cavity in a sliding manner, the lower end of the impact plate is fixedly connected with a transmission seat, the transmission seat downwards penetrates through the main shell to extend out to the outside, the transmission seat is connected with the main shell in a sliding manner, an engraving head for engraving a workpiece is fixedly connected with the lower end of the transmission seat, a buffer spring is fixedly connected between the lower end of the impact plate and the lower cavity wall of the knocking cavity, a main motion mechanism is arranged in the main motion cavity, the main motion mechanism comprises an impact seat which is connected in the main motion cavity in a sliding manner, a piston sleeve is arranged in the impact seat, an upper cavity wall of an air cylinder cavity is connected with a The piston sleeve is provided with a ventilation cavity with an upper opening and a lower opening, the lower cavity wall of the cylinder cavity is provided with two air leakage ports, the lower cavity wall of the return spring is fixedly connected with a pressure spring, and the upper end of the pressure spring is fixedly connected with a pressure plate, the lower end of the air pressure plate is fixedly connected with an air blocking rubber ring which can block and close the air leakage opening.

Furthermore, a striking rod cavity and a spring cavity positioned at the upper side of the striking rod cavity are arranged in the right cavity wall of the main motion cavity, the main shell is provided with an annular ring cavity at the proper position on the lower side of the striking rod cavity and on the outer ring of the main motion cavity, an annular ring plate is connected in the ring cavity in a sliding way, a jacking spring is fixedly connected between the lower end of the ring plate and the lower cavity wall of the ring cavity, a buckling block is fixedly connected at a proper position on the upper end surface of the circular ring plate, penetrates through the corresponding main shell and extends into the striking rod cavity, a driving rod fixing shaft is rotatably connected between the front cavity wall and the rear cavity wall of the driving rod cavity, a driving rod is rotatably connected on the driving rod fixing shaft, the striking rod is provided with a buckling groove corresponding to the buckling block, the striking rod is further rotatably connected with a lubricating wheel fixing shaft, the lubricating wheel fixing shaft is rotatably connected with a lubricating wheel, and a striking rod spring piece is fixedly connected between the striking rod and the corresponding cavity wall of the striking rod cavity.

Furthermore, a gas cutting control rod is connected in the upper cavity wall of the striking rod cavity in a sliding manner, the lower end of the gas cutting control rod extends into the striking rod cavity and contacts with the striking rod, a convex block is fixedly connected at a proper position on the striking rod and is matched with the gas cutting control rod, the gas cutting control rod penetrates through the spring cavity and is fixedly connected with a clamping spring piece in the spring cavity, a gas valve rod is fixedly connected between the upper end of the clamping spring piece and the upper cavity wall of the spring cavity, the gas cutting control rod upwards penetrates through the upper cavity walls of the gas outlet cavity and extends into the gas inlet cavity, a gas outlet is also arranged at a position of the lower cavity wall of the gas inlet cavity corresponding to the gas cutting control rod and is used for communicating the gas inlet cavity with the gas outlet cavity, a gas valve ring capable of sealing the gas outlet is fixedly connected on the gas cutting control rod, and a gas sealing ring is also fixedly connected at a proper position of the lower cavity wall of the gas outlet cavity at a contact position, the airtight ring is in sliding connection with the air cutting control rod.

Further, the main shell is further provided with a gas cutting control cavity at a proper position on the right upper side of the spring cavity, a trigger rod bottom cavity is further arranged in the lower cavity wall of the knocking cavity, a lower sliding plate is slidably connected in the trigger rod bottom cavity, a trigger rod reset spring is fixedly connected between the lower sliding plate and the lower cavity wall of the trigger rod bottom cavity, the upper end of the left side of the trigger rod bottom cavity is fixedly connected with an extension rod, the extension rod penetrates through the main shell correspondingly and extends into the knocking cavity, the right side of the upper end surface of the lower sliding plate is also fixedly connected with a gas cutting block trigger rod, the gas cutting block trigger rod upwards penetrates through the main shell correspondingly and extends into the gas cutting control cavity, a rotary fixed shaft is rotatably connected between the front cavity wall and the rear cavity wall of the gas cutting control cavity and is fixedly connected with a gas cutting control block on the rotary fixed shaft, and a gas cutting spring piece is fixedly connected between the gas cutting control block and the corresponding cavity, the right end of the lower side part of the gas cutting control block is matched with the middle part of the gas cutting block trigger rod in the gas cutting control cavity, a gas cutting groove with an opening towards one side of the gas cutting control cavity is formed in the right end of the gas cutting control rod at a proper position, and the gas cutting groove can be matched with the left side part of the gas cutting control block to be clamped.

Further, the outer ring of the proper position of the main shell is provided with a switch ring groove, the main shell in the cavity wall of the left side of the main motion cavity is also provided with a main control cavity communicated with the switch ring groove and the main motion cavity, the switch ring groove is connected with a switch board fixedly connected with the outer surface of the ring sleeve which is the ring sleeve in a sliding way, the proper position of the inner wall of the right side part of the ring sleeve is fixedly connected with a driving rod, the driving rod is connected with a driven seat in a sliding way, the driven seat is provided with a driving blind hole with a leftward opening and the driving blind hole is connected with the driving rod in a sliding way, a driven block is fixedly connected between the right end of the driven seat and the ring sleeve, the right side part of the driven seat extends into the main motion cavity and is fixedly connected with a fixed shaft of an inclined plane board, and the inclined plane board is connected with an inclined, an ejection spring cavity with a rightward opening is further formed in a proper position in the right end face of the driven seat, an inclined ejection rod with one end extending out of contact with the inclined plane plate is connected in the ejection spring cavity in a sliding mode, and an ejection spring is fixedly connected between the inclined ejection rod and the left cavity wall of the ejection spring cavity.

Furthermore, a lower push rod is fixedly connected to the upper end face of the left side portion of the circular ring plate, the upper end of the lower push rod penetrates through the main shell and extends into the main control cavity, a spring blind hole with an upward opening is formed in the upper end face of the lower push rod, a protruding block is connected to the spring blind hole in a sliding mode, a strong spring is fixedly connected between the lower end of the protruding block and the lower cavity wall of the spring blind hole, a lower ejection head is fixedly connected to the proper position of the lower end of the driven seat, and the lower ejection head is aligned to the protruding block in a state that the springs are in natural relaxation.

Further, the air inlet adapter is fixedly connected to the upper side of the main shell and used for communicating an air pipe of the air compressor, and the air inlet adapter is communicated with the air inlet cavity.

The invention has the beneficial effects that: the device simple structure cost is cheap relatively, the simple operation, the structure of device is comparatively portable through piling up, occupation space is little also has improved handheld operation's degree of freedom, the inside structure of device is comparatively simple, make things convenient for the maintenance and the maintenance in later stage, the device uses the air pump drive, the device of more direct circular telegram is safer and waterproof need not worry electric leakage scheduling problem, the device's full-automatic mode and semi-automatic mode lean on the hand feeling of operator push-down completely to change, need not the independent control knob, the mode freely switches over and accords with the instinct reaction of normal sculpture during operation, the shang shou is quick, the smooth convenient high efficiency of operation silk.

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 diagram of an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1 according to an embodiment of the present invention;

FIG. 3 is an enlarged schematic view of the embodiment of the present invention at B in FIG. 1;

FIG. 4 is an enlarged schematic view of the structure at C in FIG. 1 according to an embodiment of the present invention;

fig. 5 is an enlarged schematic structural diagram at D in fig. 1 according to an embodiment of the present invention.

Detailed Description

The invention will now be described in detail with reference to fig. 1-5, wherein for ease of description the orientations described hereinafter are now defined as follows: 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.

With reference to fig. 1-5, the hand-held pneumatic engraving machine capable of fast switching includes a main casing 11, an air inlet cavity 12, an air outlet cavity 13, a main motion cavity 14 located at the lower side of the air outlet cavity 13, and a striking cavity 15 located at the lower end of the main motion cavity 14 and communicated with the main motion cavity 14 are disposed in the main casing 11, an impact plate 62 is slidably connected in the main motion cavity 14, a transmission seat 63 is fixedly connected to the lower end of the impact plate 62, the transmission seat 63 downwardly penetrates the main casing 11 and extends to the outside, the transmission seat 63 is slidably connected to the main casing 11, an engraving head 64 for engraving a workpiece is fixedly connected to the lower end of the transmission seat 63, a buffer spring 61 is fixedly connected between the lower end of the impact plate 62 and the lower cavity wall of the striking cavity 15, a main motion mechanism 80 is disposed in the main motion cavity 14, the main motion mechanism 80 includes an impact seat 71 slidably connected to the main motion cavity 14, the impact seat 71 is provided with a cylinder cavity 72, the upper cavity wall of the cylinder cavity 72 is connected with a piston sleeve 69 in a sliding manner, the upper end of the piston sleeve 69 extends into the main motion cavity 14 and is fixedly connected with the upper cavity wall of the main motion cavity 14, the lower side part of the vent cavity 73 extends into the cylinder cavity 72 and is fixedly connected with a piston O ring 70 at a proper position, the piston O ring 70 is tightly attached to the cavity wall of the cylinder cavity 72 to ensure air tightness and form sliding connection, the outer circle of the proper position of the lower side part of the piston sleeve 69 protrudes partially and is fixedly connected with a return spring 74 between the upper cavity wall of the cylinder cavity 72, the lower cavity wall of the vent cavity 13 is provided with a vent hole 68 communicated with the vent cavity 13, the piston sleeve 69 is provided with a vent cavity 73 with an upper opening and a lower opening, the vent cavity 73 is communicated with the vent hole 68, the center position of the lower cavity wall of the cylinder cavity 72 is provided with the, two air release openings 78 are formed in the lower cavity wall of the reset spring 74, a pressure spring 77 is fixedly connected to the lower cavity wall of the reset spring 74, a pressure plate 75 is fixedly connected to the upper end of the pressure spring 77, and the lower end of the pressure plate 75 is fixedly connected with an air blocking rubber ring 76 capable of blocking the air release openings 78.

Beneficially, a striking rod cavity 17 and a spring cavity 16 located at the upper side of the striking rod cavity 17 are arranged in the right cavity wall of the main motion cavity 14, an annular ring cavity 18 is arranged at a proper position of the lower side of the striking rod cavity 17 on the outer ring of the main motion cavity 14, an annular ring plate 37 is slidably connected in the ring cavity 18, a jacking spring 36 is fixedly connected between the lower end of the ring plate 37 and the lower cavity wall of the ring cavity 18, a buckling block 42 is fixedly connected at a proper position of the upper end surface of the ring plate 37, the buckling block 42 penetrates through the corresponding main shell 11 and extends into the striking rod cavity 17, a striking rod fixing shaft 43 is rotatably connected between the front cavity wall and the rear cavity wall of the striking rod cavity 17, a striking rod 44 is rotatably connected on the striking rod fixing shaft 43, a buckling groove 45 is arranged on the striking rod 44 and corresponds to the buckling block 42, a lubricating pulley 46 is further rotatably connected on the striking rod 44, and a lubricating pulley 47 is rotatably connected on the lubricating shaft 46, a striking rod spring leaf 49 is fixedly connected between the striking rod 44 and the corresponding cavity wall of the striking rod cavity 17.

Advantageously, a gas-cutting control rod 50 is slidably connected to the upper cavity wall of the striking rod cavity 17, the lower end of the gas-cutting control rod 50 extends into the striking rod cavity 17 and contacts the striking rod 44, a protrusion 48 is also fixedly connected to the striking rod 44 at a suitable position to cooperate with the gas-cutting control rod 50, the gas-cutting control rod 50 passes through the spring cavity 16 and is fixedly connected with a clamping spring 51 in the spring cavity 16, a gas valve rod 52 is fixedly connected between the upper end of the clamping spring 51 and the upper cavity wall of the spring cavity 16, the gas-cutting control rod 50 passes through the upper cavity walls of the gas outlet cavity 13 and the gas outlet cavity 13 upward and extends into the gas inlet cavity 12, a gas outlet 67 is also arranged at the position of the lower cavity wall of the gas inlet cavity 12 corresponding to the gas-cutting control rod 50 for communicating the gas inlet cavity 12 and the gas outlet cavity 13, and a gas valve ring 66 capable of sealing the gas outlet 67 is fixedly connected to the gas valve ring 50, an airtight ring 65 is also fixedly connected to the proper position of the lower cavity wall of the air outlet cavity 13, which is in contact with the air cutting control rod 50, and the airtight ring 65 and the air cutting control rod 50 are in sliding connection.

Beneficially, the main casing 11 is further provided with a gas cutting control cavity 20 at a suitable position on the upper right side of the spring cavity 16, the lower cavity wall of the knocking cavity 15 is further provided with a trigger rod bottom cavity 59, the trigger rod bottom cavity 59 is slidably connected with a lower sliding plate 57, a trigger rod return spring 58 is fixedly connected between the lower sliding plate 57 and the lower cavity wall of the trigger rod bottom cavity 59, the upper end of the left side of the trigger rod bottom cavity 59 is fixedly connected with an extension rod 60, the extension rod 60 penetrates through the corresponding main casing 11 and extends into the knocking cavity 15, the right side of the upper end surface of the lower sliding plate 57 is further fixedly connected with a gas cutting block trigger rod 56, the gas cutting block trigger rod 56 penetrates upwards and extends into the gas cutting control cavity 20 corresponding to the main casing 11, a rotary fixed shaft 35 is rotatably connected between the front cavity wall and the rear cavity wall of the gas cutting control cavity 20, and a gas cutting control block 54 is fixedly connected on the rotary fixed shaft 35, the air cutting spring piece 55 is fixedly connected between the air cutting control block 54 and the wall of the corresponding cavity of the air cutting control cavity 20, the right end of the lower side part of the air cutting control block 54 is matched with the air cutting block trigger rod 56 in the air cutting control cavity 20, the air cutting groove 53 with an opening towards one side of the air cutting control cavity 20 is arranged at the proper position of the right end of the air cutting control rod 50, and the air cutting groove 53 can be matched and clamped with the left side part of the air cutting control block 54.

Beneficially, the outer ring of the proper position of the main shell 11 is provided with a switch ring groove 19, and the main shell 11 in the left side cavity wall of the main motion cavity 14 is further provided with a main control cavity 21 communicated with the switch ring groove 19 and the main motion cavity 14, the switch ring groove 19 is slidably connected with a switch plate 22 fixedly connected with the outer surface of a ring sleeve 23 belonging to the ring sleeve 23, the proper position of the right side partial inner wall of the ring sleeve 23 is fixedly connected with a driving rod 25, the driving rod 25 is slidably connected with a driven seat 26, the driven seat 26 is provided with a driving blind hole 27 with a leftward opening and a sliding connection between the driving blind hole 27 and the driving rod 25, the right end of the driven seat 26 and the ring sleeve 23 are fixedly connected with a pushed block 34, the right side part of the driven seat 26 extends into the main motion cavity 14 and the driven seat 26 is fixedly connected with an inclined plate fixing shaft 28, the inclined plane plate fixing shaft 28 is rotatably connected with an inclined plane plate 29, an ejection spring cavity 30 with a rightward opening is further arranged at a proper position in the right end face of the driven seat 26, an inclined plane ejection rod 32 with one end extending out of contact with the inclined plane plate 29 is slidably connected in the ejection spring cavity 30, and an ejection spring 31 is fixedly connected between the inclined plane ejection rod 32 and the left cavity wall of the ejection spring cavity 30.

Advantageously, a lower push rod 38 is fixedly connected to an upper end face of a left side portion of the annular plate 37, an upper end of the lower push rod 38 penetrates through the main casing 11 and extends into the main control chamber 21, a spring blind hole 39 with an upward opening is formed in the upper end face of the lower push rod 38, a protruding block 41 is slidably connected to the spring blind hole 39, a strong spring 40 is fixedly connected between a lower end of the protruding block 41 and a lower chamber wall of the spring blind hole 39, a lower top head 33 is also fixedly connected to a proper position of a lower end of the driven seat 26, and the lower top head 33 is aligned with the protruding block 41 in a state that each spring is naturally relaxed.

Advantageously, an air inlet adapter 79 is fixedly connected to the upper side of the main shell 11 for communicating with an air pipe of an air compressor, and the air inlet adapter 79 is communicated with the air inlet cavity 12.

Sequence of mechanical actions of the whole device:

1: in a standby state, the air inlet adapter 79 is connected with an air pipe of an air compressor or a factory, the air inlet cavity 12 is in a high-pressure state, the air valve rod 52 naturally relaxes, the air valve ring 66 blocks the air outlet 67, the jacking spring 36 naturally relaxes to lift the annular plate 37, the buckling block 42 clamps the buckling groove 45, the striking rod spring leaf 49 is compressed, the return spring 74 and the pressure spring 77 also naturally relax, the jacked lower block 34 and the powerful spring 40 naturally relax, the jacking head 33 is aligned with the protruding block 41, the jacking spring 31 naturally relaxes, and the inclined jacking rod 32 extends out;

2: semi-automatic start-up: when the engraving head 64 is aligned with the area to be engraved, the switch plate 22 and the ring sleeve 23 are slowly pushed down manually, the switch spring 24 is compressed, the driving rod 25 is driven to move down, the driven seat 26 is driven to press the lower push rod 38 through the convex block 41 and the strong spring 40 so that the lower push rod 38 presses the ring plate 37 to compress the jacking spring 36 to move down, the ring plate 37 moves down to drive the buckling block 42 to move down to enable the striking rod 44 to be separated from the buckling block 42, the striking rod 44 is rotationally ejected under the elastic force of the striking rod spring leaf 49, the convex block 48 is contacted with the lower end of the cutting control rod 50 and jacks up the cutting control rod 50, the cutting control rod 50 compresses the air valve rod 52 through the clamping spring leaf 51, the cutting air groove 53 is aligned with the cutting air control block 54, the cutting air control block 54 is clamped by the elastic force of the cutting air spring leaf 55 so that the cutting control rod 50 cannot move down, and at the cutting air valve ring 66 is moved up to enable the air outlet cavity 12 to be communicated with the air outlet cavity 13, the gas in the gas inlet cavity 12 rapidly enters the gas outlet cavity 13 and is sprayed into the lower side part of the cylinder cavity 72 through the vent cavity 73, the gas pressure rapidly increased at the lower side part of the cylinder cavity 72 enables the gas pressure plate 75 to compress the pressure spring 77 to move downwards, the gas blocking rubber ring 76 is tightly attached to the gas release port 78 to enable the gas release port 78 to be closed, the impact seat 71 rapidly moves downwards under the pushing of the gas to impact the impact plate 62, and the impact plate 62 transmits the impact to the engraving head 64 through the transmission seat 63 so as to engrave the surface of the material;

3: when the impact base 71 moves downwards, the impact base 71 contacts with the inclined plane plate 29 and is driven to press the base 26 to the left through the inclined plane ejector rod 32 and the ejector spring 31, the base is compressed by the ejector block 34, the ejector head 33 is staggered with the convex block 41 and the ejector rod 38, the ejector rod 38 is lifted, the ejector rod 38 relaxes the circular ring plate 37 to reset, the fastening block 42 is lifted again, the impact base 71 contacts with the lubricating wheel 47 to press the striking rod 44 back into the striking rod cavity 17, the fastening block 42 locks the striking rod 44 again, after the impact base 71 knocks and presses the impact plate 62 downwards, the extension rod 60 is pressed down by the impact plate 62, the lower sliding plate 57 compresses the trigger rod return spring 58 to move downwards, the lower sliding plate 57 drives the cutting block trigger rod 56 to move downwards, the cutting block trigger rod 56 drives the cutting block 54 to compress the cutting spring piece 55 to rotate, the cutting control rod 50 is separated from the constraint of the cutting block 54, the valve rod 52 relaxes the cutting spring piece 51 to drive the cutting control rod 50 to move downwards, the air valve ring 66 seals the air outlet 67 again, the air in the air inlet cavity 12 stops entering the air outlet cavity 13, at this time, the air pressure plate 75 moves upwards when the pressure spring 77 expands, the air blocking rubber ring 76 no longer blocks the air leakage opening 78, the air in the air inlet cavity 12 leaks from the air leakage opening 78, the impact seat 71 moves upwards under the elastic force of the reset spring 74 to reset, at this time, the switch plate 22 needs to be loosened to enable the annular sleeve 23 to move upwards, the pushed lower block 34 pushes the driven seat 26 to reset again and then returns to the initial state, in this mode, the switch plate 22 is pushed down again after being loosened by manual pushing of the switch plate 22, and then the switch plate 22 is impacted again, and the operation is repeated;

4: a full-automatic mode: the switch plate 22 is pushed down manually and quickly, the ring sleeve 23 is driven by the driving rod 25 to move down quickly, the lower pushing head 33 pushes the lower pushing rod 38 down, the ring plate 37 is pushed to the bottom of the stroke, the lower pushing head 33 is pressed down continuously to compress the strong spring 40, the lower pushing head 33 pushes the protruding block 41 into the spring blind hole 39, the left movement of the driven seat 26 is limited, then the impact seat 71 moves down and cannot push the driven seat 26 to the right, the impact seat 71 pushes the inclined plane ejecting rod 32 into the spring blind hole 39 when contacting with the inclined plane plate 29, the impact seat 71 moves down continuously, the ring plate 37 cannot lift up again, the buckling block 42 cannot lift up again, after the impact seat 71 presses down the impact rod 44, the impact rod 44 cannot be limited in the impact rod cavity 17, the spring leaf spring is ejected again under the elastic force of the impact rod 49 after the impact rod cavity 17 moves up again, and the air-cutting control rod 50 is pushed up again to the impact seat 71 to fall down again, before the switch plate 22 is manually released, the impact base 71 will move up and down in a cycle to strike the impact plate 62 repeatedly, and the engraving member 64 will continue to strike the material.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.