CN218661100U

CN218661100U - Pneumatic carving device

Info

Publication number: CN218661100U
Application number: CN202222475507.5U
Authority: CN
Inventors: 赵红举; 任文廉; 罗昆; 张家勇; 姬庆柏; 许士利
Original assignee: HASCO KSPG Nonferrous Components Shanghai Co Ltd
Current assignee: HASCO KSPG Nonferrous Components Shanghai Co Ltd
Priority date: 2022-09-19
Filing date: 2022-09-19
Publication date: 2023-03-21
Anticipated expiration: 2032-09-19

Abstract

The utility model provides a pneumatic engraving device, which comprises a mounting plate, an X-axis moving mechanism, a Y-axis moving mechanism and a pneumatic engraving head; a bearing plate is movably arranged above the mounting plate; the Y-axis moving mechanism comprises a Y-axis driving motor, a Y-axis gear, a Y-axis rack and a Y-axis rack mounting piece; the Y-axis driving motor is arranged on the bearing plate and is connected with the Y-axis gear; the Y-axis rack is arranged on the Y-axis rack mounting part and is meshed with the Y-axis gear; the bottom end of the Y-axis rack mounting part penetrates through the bearing plate and is fixedly connected with the mounting plate; the X-axis moving mechanism comprises an X-axis driving motor, an X-axis gear, an X-axis rack and an X-axis rack mounting piece; the X-axis driving motor is arranged on the bearing plate and is connected with the X-axis gear; the X-axis rack is arranged on the X-axis rack mounting piece and is meshed with the X-axis gear; the pneumatic engraving head is arranged on the X-axis rack mounting piece; the position adjustment of the pneumatic engraving head in the X direction and the Y direction is realized through a gear rack structure, and the engraving precision and the engraving speed are ensured.

Description

Pneumatic carving device

Technical Field

The utility model relates to a product is beaten the mark field, especially relates to a pneumatics is beaten and is carved device.

Background

After the die-casting production of the die-casting product is finished, in order to facilitate subsequent tracking, tracing and model confirmation, a marking machine is used for marking the product; the pneumatic engraving machine is a common engraving machine device, and a device with a certain depth mark is printed on a workpiece by controlling an engraving needle to move according to a certain track in an X-Y two-dimensional plane and simultaneously making high-frequency impact motion under the action of compressed air. However, in the existing pneumatic marking machine, the X-axis movement and the Y-axis movement of the pneumatic marking head are usually driven by a lead screw nut structure or a synchronous belt mechanism, but the lead screw nut structure has a slow transmission speed, so that the marking efficiency is low, and the industrial application is not facilitated; the pneumatic marking machine driven by the synchronous belt has high marking speed but low marking precision, and cannot meet the marking requirement; therefore, how to combine the engraving speed and the engraving precision is a technical problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of the above shortcoming of the prior art, the to-be-solved technical problem of the utility model is to provide a beat and carve fast, beat the pneumatics that the precision is high and carve the device.

In order to achieve the above objects and other related objects, the present invention provides a pneumatic engraving device, which comprises a mounting plate, an X-axis moving mechanism, a Y-axis moving mechanism and a pneumatic engraving head; a bearing plate is movably arranged above the mounting plate; the Y-axis moving mechanism comprises a Y-axis driving motor, a Y-axis gear, a Y-axis rack and a Y-axis rack mounting piece; the Y-axis driving motor is arranged on the bearing plate, and the output end of the Y-axis driving motor is connected with the Y-axis gear and used for driving the Y-axis gear to rotate; the Y-axis gear rack is arranged on the Y-axis gear rack mounting part and is meshed with the Y-axis gear; the bottom end of the Y-axis rack mounting part penetrates through the bearing plate to be fixedly connected with the mounting plate and is used for driving the mounting plate to be close to or far away from the bearing plate; the X-axis moving mechanism comprises an X-axis driving motor, an X-axis gear, an X-axis rack and an X-axis rack mounting piece; the X-axis driving motor is arranged on the bearing plate; the output end of the X-axis driving motor is connected with the X-axis gear and is used for driving the X-axis gear to rotate; the X-axis rack is arranged on the X-axis rack mounting piece and is meshed with the X-axis gear; the pneumatic engraving head is installed on the X-axis rack installation piece.

Preferably, the mounting plate is provided with two side plates arranged at intervals along the X direction; the inner surfaces of the two side plates are oppositely provided with Y-axis guide rails, and Y-axis sliding blocks are matched on the Y-axis guide rails in a sliding manner; the Y-axis sliding blocks are fixedly connected with the bearing plate; the bearing plate is further provided with an X-axis guide rail, an X-axis sliding block is matched on the X-axis guide rail in a sliding mode, and the X-axis sliding block is connected with the pneumatic engraving head.

Preferably, an X-axis zero-point inductive switch is mounted on the Y-axis slider close to the Y-axis driving motor; an X-axis sensing piece matched with the X-axis zero point sensing switch is arranged on the X-axis rack mounting piece; and a Y-axis zero point induction switch is arranged on the mounting plate, and a Y-axis induction piece matched with the Y-axis zero point induction switch is arranged on the bearing plate.

Preferably, the Y-axis rack mounting part is provided with an X-direction abutting mechanism for abutting the Y-axis rack against the Y-axis gear; and the X-axis gear rack mounting part is provided with a Y-direction abutting mechanism for abutting the X-axis gear rack on the X-axis gear.

Preferably, the X-direction abutting mechanism comprises an X-direction guide rod and an X-direction spring, the X-direction guide rod extends along the X direction, one end of the X-direction guide rod is fixed on the Y-axis rack (the other end of the X-direction guide rod is in sliding fit with the Y-axis rack mounting piece), the X-direction spring is sleeved on the X-direction guide rod, and two ends of the X-direction spring are respectively abutted to the Y-axis rack and the Y-axis rack mounting piece.

Preferably, the X-guide rod comprises an X-guide portion and an X-threaded portion coaxially connected; and the Y-axis rack mounting part is provided with an X-direction guide hole in sliding fit with the X-direction guide part, and the Y-axis rack is provided with an X-direction threaded hole matched with the X-direction threaded part.

Preferably, the Y-direction abutting mechanism comprises a Y-direction guide rod and a Y-direction spring, the Y-direction guide rod extends along the Y-direction, one end of the Y-direction guide rod is fixed on the X-axis rack, and the other end of the Y-direction guide rod is in sliding fit with the X-axis rack mounting part; y is to spring housing establish on Y is to the guide bar, and Y is to the both ends of spring respectively with X axle rack and X axle rack installed part butt.

Preferably, the Y-guide rod includes a Y-guide portion and a Y-thread portion coaxially connected; and the X-axis rack mounting part is provided with a Y-direction guide hole in sliding fit with the Y-direction guide part, and the X-axis rack is provided with a Y-direction threaded hole matched with the Y-direction threaded part.

Preferably, the pneumatic engraving head comprises an embossing head, an engraving needle, an end cover and an embossing head mounting plate; a guide step hole is formed in the print head along the axial direction of the print head; the end cover and the engraving needle are both positioned in the guide stepped hole, and the end cover slides along the axial direction of the guide stepped hole; the engraving needle comprises a needle body and a needle cap; the needle cap is positioned in the end cover; the needle body extends out of the front end of the guide stepped hole; a return spring is arranged in the guide step hole and sleeved on the needle body; the stamping head mounting plate is arranged at the rear end of the stamping head, and an air passage communicated with the guide step hole is arranged on the stamping head mounting plate; and a proximity switch matched with the end cover is radially arranged on the stamping head and used for judging whether the engraving needle is reset in place or not.

Preferably, the rear end detachably of mounting panel installs the back plate, the top detachably of curb plate installs the roof, and mounting panel, back plate, roof and two curb plates enclose jointly and close the casing that forms anterior open-ended.

As mentioned above, the utility model relates to a pneumatic device of carving of beating has following beneficial effect:

the X-axis moving mechanism and the Y-axis moving mechanism of the utility model adopt a gear rack structure, thereby effectively ensuring the transmission speed and the transmission precision and further ensuring the engraving speed and the engraving precision of the pneumatic engraving device; the X-direction abutting mechanism and the Y-direction abutting mechanism compress the racks on the corresponding gears by utilizing the elasticity of the springs, so that the matching error between the gears and the racks is effectively reduced, the transmission precision of the gears and the racks is further improved, and the engraving precision is further improved.

Drawings

Fig. 1 is a perspective view of the pneumatic engraving device of the present invention.

Fig. 2 is a perspective view of the pneumatic engraving device after the top plate is removed.

Fig. 3 is an exploded view of the Y-axis moving mechanism.

Fig. 4 is an exploded view of the X-axis moving mechanism.

FIG. 5 is a cross-sectional view of the Y-axis gear, Y-axis rack, and Y-axis rack mount in one embodiment.

Fig. 6 is a schematic view of the X-guide bar.

FIG. 7 is a cross-sectional view of the Y-axis rack and Y-axis rack mount.

FIG. 8 is a cross-sectional view of the X-axis gear, X-axis rack, and X-axis rack mount in one embodiment.

Fig. 9 is a schematic view of the Y-guide bar.

FIG. 10 is a cross-sectional view of an X-axis rack and X-axis rack mount.

Fig. 11 is a cross-sectional view of a pneumatic engraving head.

Fig. 12 is a cross-sectional view of an imprint head.

Description of the reference figures:

a mounting plate 11, a side plate 12, a rear plate 13, a top plate 14, a bearing plate 2, a through groove 21, a Y-axis moving mechanism 3, a Y-axis driving motor 31, a Y-axis motor mounting plate 311, a Y-axis gear 32, a Y-axis rack 33, a second X-direction counter bore 331a, an X-direction threaded hole body 331b, a Y-axis rack mounting member 34, a first X-direction counter bore 341a, an X-direction guide hole body 341b, an X-direction guide rod 35, an X-direction guide part 351, an X-direction threaded part 352, an X-direction spring 36, an X-axis moving mechanism 4, an X-axis driving motor 41, an X-axis motor mounting plate 411, an X-axis gear 42, an X-axis rack 43, a second Y-direction counter bore 431a, a Y-direction threaded hole body 431b, an X-axis rack mounting member 44, the device comprises a first Y-direction counter bore 441a, a Y-direction guide hole body 441b, a Y-direction guide rod 45, a Y-direction guide part 451, a Y-direction thread part 452, a pneumatic engraving head 5, an embossing head 51, a guide stepped hole 511, an end cover guide hole 511a, a needle body guide hole 511b, an annular groove 511c, an exhaust hole 512, a radial mounting hole 513, an engraving needle 52, a needle body 521, an embossing needle 5211, a needle cap 522, an end cover 53, an embossing head mounting plate 54, a first air hole 541, an air pipe interface 542, a reset spring 55, a proximity switch 56, a Y-axis guide rail 61, a Y-axis sliding block 611, an X-axis guide rail 62, an X-axis zero-point induction switch 7, an X-axis induction part 71 and a Y-axis zero-point induction switch 8.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle", and the like used in the present specification are for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also considered to be the scope of the present invention without substantial changes in the technical content.

For convenience of description, in the following embodiments, the directions are defined as follows, in which the high-frequency impact direction of the engraving needle 52 in the pneumatic engraving head 5 is defined as a front-back direction, the first moving direction of the pneumatic engraving head 5 is defined as a left-right direction, and the second moving direction of the pneumatic engraving head 5 is defined as a top-bottom direction. Accordingly, in the views of fig. 1 and 2, the Z axis is the front-rear direction, the X axis is the left-right direction, and the Y axis is the up-down direction.

As shown in fig. 1 to 4, the utility model provides a pneumatic engraving device, which comprises a mounting plate 11, a bearing plate 2, an X-axis moving mechanism 4, a Y-axis moving mechanism 3 and a pneumatic engraving head 5;

the bearing plate 2 is movably arranged above the mounting plate 11 and is used for bearing the Y-axis moving mechanism 3 and the X-axis moving mechanism 4;

the Y-axis moving mechanism 3 comprises a Y-axis driving motor 31, a Y-axis gear 32, a Y-axis rack 33 and a Y-axis rack mounting piece 34; the Y-axis driving motor 31 is fixedly arranged on the bearing plate 2 through a Y-axis motor mounting plate 311, and a motor shaft of the Y-axis driving motor 31 is connected with the Y-axis gear 32 to drive the Y-axis gear 32 to rotate; the Y-axis gear 32 is in meshing transmission with the Y-axis rack 33; the Y-axis rack mounting part 34 is connected to the Y-axis rack 33; the bearing plate 2 is provided with a through groove 21, and the bottom end of the Y-axis rack mounting part 34 penetrates through the bearing plate 2 and is fixedly connected with the mounting plate 11; thus, when the Y-axis driving motor 31 drives the Y-axis gear 32 to rotate, since the mounting plate 11 is fixed, the Y-axis rack mounting part 34 and the Y-axis rack 33 are kept fixed, so that the Y-axis gear 32 rolls up and down on the Y-axis rack 33 along the Y direction, and further drives the Y-axis driving motor 31 and the bearing plate 2 to move up and down along the Y direction relative to the mounting part 11;

the X-axis moving mechanism 4 comprises an X-axis driving motor 41, an X-axis gear 42, an X-axis rack 43 and an X-axis rack mounting piece 44; the X-axis driving motor 41 is fixedly installed on the carrier plate 2 through the X-axis motor installation plate 411 to move up and down along Y along with the carrier plate 2; a motor shaft of the X-axis driving motor 41 is connected with the X-axis gear 42 and is used for driving the X-axis gear 42 to rotate; the X-axis gear 42 is in meshed transmission with the X-axis rack 43 to drive the X-axis rack 43 to move left and right along the X direction; the pneumatic engraving head 5 is arranged on an X-axis rack 43 through an X-axis rack mounting piece 44 and moves left and right along the X direction along with the X-axis rack 43; thus, the position adjustment of the pneumatic engraving head 5 in the X and Y two-dimensional planes can be realized.

When the die-casting product needs to be subjected to pressure marking, the mounting plate 11 of the pneumatic marking device is fixedly connected with the manipulator, the pneumatic marking device is moved to the die-casting product through the manipulator, and the pneumatic marking head 5 of the pneumatic marking device is aligned to the area to be marked of the die-casting product; and then, starting the pneumatic engraving head 5, and adjusting the position of the pneumatic engraving head 5 in the XY two-dimensional plane according to the content of the mark to be engraved to finish the engraving of the die-casting product.

As shown in fig. 3 and 4, the mounting plate 11 is further provided with two side plates 12 spaced along the X direction; the bearing plate 2 is positioned between the two side plates 12; the inner surfaces of the two side plates 12 are oppositely provided with Y-axis guide rails 61, and the bottom ends of the Y-axis guide rails 61 are fixedly connected with the mounting plate 11; a Y-axis sliding block 611 is matched on the Y-axis guide rail 61 in a sliding manner; each Y-axis sliding block 611 is fixedly connected with the bearing plate 2 so as to ensure the stability of the bearing plate 2 moving up and down along the Y direction; an X-axis guide rail 62 is further arranged on the bearing plate 2, an X-axis sliding block is matched on the X-axis guide rail 62 in a sliding mode, and the X-axis sliding block is connected with the pneumatic engraving head 5 so as to guarantee the stability of the left and right movement of the pneumatic engraving head 5 along the X direction.

Furthermore, an X-direction abutting mechanism for abutting the Y-axis rack 33 against the Y-axis gear 32 is arranged on the Y-axis rack mounting part 34, so that a backlash error between the Y-axis rack 33 and the Y-axis gear 32 is eliminated, and the transmission precision is improved; the X-axis rack mounting piece 44 is provided with a Y-direction abutting mechanism for abutting the X-axis rack 43 on the X-axis gear 42, so that a backlash error between the X-axis rack 43 and the X-axis gear 42 is eliminated, and the transmission precision is improved.

Further, as shown in fig. 5 to 7, the X-direction abutting mechanism includes an X-direction guide rod 35 and an X-direction spring 36 arranged along the X-direction, the X-direction guide rod 35 includes an X-direction guide portion 351 and an X-direction threaded portion 352 coaxially connected; an X-direction guide hole 341 is arranged on the Y-axis rack mounting part 34, and an X-direction threaded hole 331 which is coaxial with the X-direction guide hole 341 is arranged on the Y-axis rack 33; the X-direction thread portion 352 of the X-direction guide rod 35 passes through the X-direction guide hole 341 and is screwed into the X-direction screw hole 331, so that the X-direction guide rod 35 and the Y-axis rack 33 are relatively fixed; the X-direction guide portion 351 of the X-direction guide rod 35 is slidably fitted in the X-direction guide hole 341 in the axial direction thereof; the X-direction spring 36 is sleeved on the X-direction guide rod 35, and two ends of the X-direction spring 36 are respectively abutted against the Y-axis rack 33 and the Y-axis rack mounting part 34; because the Y-axis rack mounting part 34 is fixed relative to the mounting plate 11, the Y-axis rack 33 moves along the X direction under the action of the X-direction spring 36 to be close to the Y-axis gear 32, so that the purpose of eliminating backlash is achieved, and the transmission precision is improved; the arrangement of the X-direction guide rod 35 ensures that the Y-axis rack 33 can only move along the X direction, the movement of the Y-axis rack 33 in the Y direction is limited, and when the Y-axis gear 32 is matched with the Y-axis rack 33, the Y-axis gear 32 can roll up and down along the Y-axis rack 33, so that the position adjustment of the Y-axis driving motor 31 and the bearing plate 2 in the Y direction is realized; in another embodiment, the threaded connection between the X-guide bar 35 and the Y-rack 33 may be replaced by welding.

Preferably, as shown in fig. 7, the X-direction guide hole 341 is a stepped hole, and includes an X-direction guide hole body 341b and a first X-direction counterbore 341a that are coaxially disposed; wherein, the aperture of the first X-directional counter bore 341a is larger than the aperture of the X-directional guide bore body 341 b; the X-direction threaded hole 331 is a stepped hole, and includes an X-direction threaded hole body 331b and a second X-direction counter bore 331a which are coaxially arranged; the diameter of the second X-direction counterbore 331a is equal to the diameter of the first X-direction counterbore 341a and is greater than the diameter of the X-direction guide hole body 341 b; the two ends of the X-direction spring 36 are respectively embedded in the first X-direction counter bore 341a and the second X-direction counter bore 331a, and the X-direction spring 36 is limited by the first X-direction counter bore 341a and the second X-direction counter bore 331a, so that the X-direction guide rod 35 is ensured to move along the axial direction thereof to the maximum extent (i.e., move along the X direction).

In this embodiment, there are at least two X-direction tightening mechanisms, which are arranged equidistantly along the Y-direction, and the distance between the uppermost X-direction tightening mechanism and the lowermost X-direction tightening mechanism is substantially equal to the transmission stroke of the Y-axis rack 33 (i.e., the deviation is within ± 2 cm); thus, when the Y-axis gear 32 rolls on the Y-axis rack 33, the elastic forces applied to the Y-axis rack 33 by the X-direction springs 36 are equal, and the Y-axis rack 33 is prevented from being inclined due to uneven force, so that the transmission fit between the Y-axis rack 33 and the Y-axis gear 32 is prevented from being affected.

Further, as shown in fig. 8 to 10, the Y-direction urging mechanism includes a Y-direction guide rod 45 and a Y-direction spring 46 provided in the Y-direction, the Y-direction guide rod 45 includes a Y-direction guide portion 451 and a Y-direction thread portion 452 coaxially connected; the X-axis rack mounting piece 44 is provided with a Y-direction guide hole 441, and the X-axis rack 43 is provided with a Y-direction threaded hole 431 which is coaxial with the Y-direction guide hole 441; the Y-direction thread part 452 of the Y-direction guide rod 45 passes through the Y-direction guide hole 441 to be in threaded connection with the Y-direction thread hole 431 so as to realize the relative fixation of the Y-direction guide rod 45 and the X-axis rack 43; the Y-guide portion 451 of the Y-guide rod 45 is slidably fitted to the Y-guide hole 441 in the axial direction thereof; the Y-direction spring 46 is sleeved on the Y-direction guide rod 45, and two ends of the Y-direction spring 46 are respectively abutted against the X-axis rack 43 and the X-axis rack mounting piece 44; because the X-axis rack mounting piece 44 and the bearing plate 2 are relatively fixed in the Y direction, the X-axis rack 43 moves along the Y direction under the action of the Y-direction spring 46 to be close to the X-axis gear 42, so that the purpose of eliminating backlash is achieved, and the transmission precision is improved; the provision of the Y-guide 45 ensures that the X-axis rack mount 44 can move in the X-direction along with the X-axis rack 43 when the X-axis gear 42 is engaged with the X-axis rack 43 to achieve position adjustment of the pneumatic engraving head 5 in the X-direction.

Of course, in this embodiment, the screw connection between the Y-guide rod 45 and the X-axis rack 43 may be replaced by welding, as long as the Y-guide rod 45 and the X-axis rack 43 can be fixed relatively.

Preferably, as shown in fig. 10, the Y-directional guide hole 441 is a stepped hole, and includes a Y-directional guide hole body 441b and a first Y-directional counterbore 441a which are coaxially disposed; the diameter of the first Y-direction counter bore 441a is larger than that of the Y-direction guide bore body 441 b; the Y-direction threaded hole 431 is a stepped hole and comprises a coaxially arranged Y-direction threaded hole body 431b and a second Y-direction counter bore 431a; the aperture of the second Y-directional counterbore 431a is equal to the aperture of the first Y-directional counterbore 441a and is larger than the aperture of the Y-directional guide hole body 441 b; the two ends of the Y-direction spring 46 are respectively embedded in the first Y-direction counterbore 441a and the second Y-direction counterbore 431a, and the Y-direction spring 46 is limited by the first Y-direction counterbore 441a and the second Y-direction counterbore 431a, so that the Y-direction guide rod 45 is ensured to move in the axial direction thereof to the maximum extent (i.e., to move in the Y-direction).

In this embodiment, there are at least two Y-direction tightening mechanisms, which are arranged equidistantly along the X-direction, and the distance between the leftmost Y-direction tightening mechanism and the rightmost Y-direction tightening mechanism is substantially equal to the transmission stroke of the X-axis rack 43 (i.e., the deviation is within ± 2 cm); thus, when the X-axis gear 42 is in transmission with the X-axis rack 43 in a matching manner, the elastic force exerted on the X-axis rack 43 by the Y-direction spring 46 is equal, so that the X-axis rack 43 is prevented from inclining due to uneven stress, and the transmission matching between the X-axis rack 43 and the X-axis gear 42 is prevented from being influenced.

Further, as shown in fig. 3 and 4, an X-axis zero-point induction switch 7 is mounted on the Y-axis slider 611 near the Y-axis driving motor 31; the X-axis rack mounting piece 44 is provided with an X-axis sensing piece 71 matched with the X-axis zero-point sensing switch 7, and when the X-axis zero-point sensing switch 7 senses the X-axis sensing piece 71, the pneumatic engraving head 5 is shown to reset to the position in the X direction; a Y-axis zero point induction switch 8 is arranged on the mounting plate 11, and a Y-axis induction piece matched with the Y-axis zero point induction switch 8 is arranged on the bearing plate 2; when the Y-axis zero-point inductive switch 8 induces the Y-axis inductive part, the pneumatic engraving head 5 is shown to be reset in place in the Y direction; thus, the pneumatic engraving head 5 can be positioned at an initial position, and the operation precision of the next engraving operation is ensured.

It can be understood that the zero point inductive switches (including the X-axis zero point inductive switch 7 and the Y-axis zero point inductive switch 8) may be position sensors such as hall sensors, photodiodes, proximity switches, etc., as long as it can be ensured that the pneumatic engraving head 5 can realize zero point reset in the X direction and the Y direction. Since position sensors such as hall sensors, photodiodes, proximity switches, etc. are all prior art, they are not described in detail.

As shown in fig. 11 and 12, the pneumatic imprint head 5 includes an imprint head 51, an imprint needle 52, an end cap 53, and an imprint head mounting plate 54; a guide stepped hole 511 is formed in the imprint head 51 along the axial direction thereof; the end cover 53 and the engraving needle 52 are both positioned in the guide stepped hole 511, and the end cover 53 slides along the axial direction of the guide stepped hole 511; the engraving needle 52 comprises a needle body 521 and a needle cap 522; a containing groove for containing the needle cap 522 is arranged on the front end face of the end cover 53, and the needle cap 522 is positioned in the containing groove of the end cover 53; the needle body 521 extends out of the front end of the guide stepped hole 511 to the imprint head 51; a return spring 55 is also arranged in the guide step hole 511, and the return spring 55 is sleeved on the needle body 521; the imprint head mounting plate 54 is mounted on the rear end of the imprint head 51 by bolts; a first air hole 541 communicated with the guide stepped hole 511 is arranged on the front end face of the stamping head mounting plate 54, an air pipe connector 542 communicated with the first air hole 541 is arranged on the side face of the stamping head mounting plate 54, and the first air hole 541 and the air pipe connector 542 jointly form an air passage; an air pipe on the air pipe connector 542 is connected with an air compression source through an electromagnetic valve; when the punching and carving machine is used, the air pipe connector 542 is communicated with an air compression source through the electromagnetic valve, compressed air sequentially enters the air pipe connector 542, the first air channel 541 and the guide stepped hole 511 to push the end cover 53 to move forwards, and the punching and carving needle 52 extends forwards to make a punching and carving mark on a die-casting product; after the marking is finished, the electromagnetic valve communicates the air pipe interface 542 with the outside, and the marking needle 52 is restored to the initial position under the pushing of the return spring 55; the imprint head 51 is provided with a radial mounting hole 513, a proximity switch 56 matched with the end cover 53 is mounted in the radial mounting hole 513, the proximity switch 56 is used for judging whether the scribing needle 52 is reset in place, and if the scribing needle 52 is reset for a preset time, the proximity switch 56 does not sense the end cover 53, which indicates that the return spring 55 fails and needs to be replaced.

Preferably, as shown in fig. 11, at least one exhaust hole 512 communicating with the guiding stepped hole 511 is formed on the outer wall of the stamping head 51, so that when the engraving needle 52 moves forward, the gas in the guiding stepped hole 511 can be smoothly exhausted, and the balance of the internal and external air pressures is ensured; the vent holes 512 are preferably provided as radial holes.

Further, as shown in fig. 12, the guiding stepped hole 511 includes an end cover guiding hole 511a and a needle body guiding hole 511b which are coaxially arranged, and the aperture of the end cover guiding hole 511a is larger than that of the needle body guiding hole 511b to form a stepped portion for limiting the needle cap 522.

Preferably, as shown in fig. 11 and 12, an annular groove 511c is further opened at the step portion, the inner diameter of the annular groove 511c is equal to the bore diameter of the needle body guide hole 511b, and the outer diameter of the annular groove 511c is smaller than the outer diameter of the needle cap 522; one end of the return spring 55 is embedded in the annular groove 511b, and the other end of the return spring 55 abuts against the needle cap 522; the return spring 55 is limited by the annular groove 511c to ensure that the scoring pin 52 moves as far as possible in its axial direction.

As shown in fig. 11, the needle body 521 includes a needle body and an embossing needle 5211, the embossing needle 5211 is integrally formed with the needle body or detachably connected to the needle body, and in this embodiment, the embossing needle 5211 is preferably detachably connected to the needle body to implement individual replacement of the embossing needle 5211, thereby reducing replacement cost.

As shown in fig. 1, a rear plate 13 is detachably mounted at the rear end of the mounting plate 11, a top plate 14 is detachably mounted at the top of the side plate 12, and the mounting plate 11, the rear plate 13, the top plate 14 and the two side plates 12 jointly enclose a casing with an open front, so that the aesthetic degree of the pneumatic engraving device is effectively improved.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. A pneumatic engraving device comprises a mounting plate (11), an X-axis moving mechanism (4), a Y-axis moving mechanism (3) and a pneumatic engraving head (5); the device is characterized in that a bearing plate (2) is movably arranged above the mounting plate (11); the Y-axis moving mechanism comprises a Y-axis driving motor (31), a Y-axis gear (32), a Y-axis rack (33) and a Y-axis rack mounting piece (34); the Y-axis driving motor (31) is arranged on the bearing plate (2), and the output end of the Y-axis driving motor (31) is connected with the Y-axis gear (32) and used for driving the Y-axis gear (32) to rotate; the Y-axis gear (33) is arranged on the Y-axis gear mounting piece (34) and is meshed with the Y-axis gear (32); the bottom end of the Y-axis rack mounting piece (34) penetrates through the bearing plate (2) to be fixedly connected with the mounting plate (11) and is used for driving the mounting plate (11) to be close to or far away from the bearing plate (2); the X-axis moving mechanism comprises an X-axis driving motor (41), an X-axis gear (42), an X-axis rack (43) and an X-axis rack mounting piece (44); the X-axis driving motor (41) is arranged on the bearing plate (2); the output end of the X-axis driving motor (41) is connected with the X-axis gear (42) and is used for driving the X-axis gear (42) to rotate; the X-axis rack (43) is arranged on the X-axis rack mounting piece (44) and is meshed with the X-axis gear (42); the pneumatic engraving head (5) is mounted on an X-axis rack mounting piece (44).

2. A pneumatic engraving device as claimed in claim 1, wherein said mounting plate (11) is provided with two side plates (12) spaced apart in the X-direction; the inner surfaces of the two side plates (12) are oppositely provided with Y-axis guide rails (61), and Y-axis sliding blocks (611) are matched on the Y-axis guide rails (61) in a sliding manner; the Y-axis sliding blocks (611) are fixedly connected with the bearing plate (2); still be equipped with X axle guide rail (62) on loading board (2), sliding fit has the X axle slider on X axle guide rail (62), the X axle slider links to each other with pneumatic carving head (5).

3. The pneumatic engraving device of claim 2, wherein an X-axis zero point induction switch (7) is mounted on a Y-axis slider (611) close to the Y-axis driving motor (31); an X-axis sensing piece (71) matched with the X-axis zero-point sensing switch (7) is arranged on the X-axis rack mounting piece (44); be equipped with Y axle zero point inductive switch (8) on mounting panel (11), be equipped with on loading board (2) with Y axle zero point inductive switch (8) complex Y axle response piece.

4. The pneumatic engraving device of any one of claims 2 to 3, wherein the Y-axis rack mounting part (34) is provided with an X-direction abutting mechanism for abutting the Y-axis rack (33) against the Y-axis gear (32); and a Y-direction abutting mechanism for abutting the X-axis gear (43) on the X-axis gear (42) is arranged on the X-axis gear mounting piece (44).

5. The pneumatic engraving device of claim 4, wherein said X-direction resisting mechanism comprises an X-direction guide rod (35) and an X-direction spring (36); the X-direction guide rod (35) extends along the X direction, one end of the X-direction guide rod is fixed on the Y-axis rack (33), and the other end of the X-direction guide rod is in sliding fit with the Y-axis rack mounting piece (34); the X-direction spring (36) is sleeved on the X-direction guide rod (35), and two ends of the X-direction spring (36) are respectively abutted to the Y-axis rack (33) and the Y-axis rack mounting piece (34).

6. A pneumatic engraving device as claimed in claim 5, wherein said X-directional guide rod (35) comprises an X-directional guide portion (351) and an X-directional threaded portion (352) coaxially connected; the Y-axis rack mounting piece (34) is provided with an X-direction guide hole (341) which is in sliding fit with the X-direction guide part (351), and the Y-axis rack (33) is provided with an X-direction threaded hole (331) which is in fit with the X-direction threaded part (352).

7. The pneumatic engraving device according to claim 4, wherein the Y-direction abutting mechanism comprises a Y-direction guide rod (45) and a Y-direction spring (46), the Y-direction guide rod (45) extends along the Y direction, one end of the Y-direction guide rod (45) is fixed on the X-axis rack (43), and the other end of the Y-direction guide rod is in sliding fit with the X-axis rack mounting piece (44); y is to spring (46) cover establish on Y to guide bar (45), and Y is to the both ends of spring (46) respectively with X axle rack (43) and X axle rack installed part (44) butt.

8. The pneumatic engraving device of claim 7, wherein the Y-guide rod (45) comprises a Y-guide portion (451) and a Y-thread portion (452) coaxially connected; the X-axis rack mounting piece (44) is provided with a Y-direction guide hole (441) which is in sliding fit with the Y-direction guide part (451), and the X-axis rack (43) is provided with a Y-direction threaded hole (431) which is in fit with the Y-direction threaded part (452).

9. A pneumatic engraving device according to claim 1, wherein said pneumatic engraving head (5) comprises an imprint head (51), an engraving needle (52), an end cap (53) and an imprint head mounting plate (54); a guide stepped hole (511) is formed in the imprint head (51) along the axial direction of the imprint head; the end cover (53) and the engraving needle (52) are both positioned in the guide stepped hole (511), and the end cover (53) slides along the axial direction of the guide stepped hole (511); the carving needle (52) comprises a needle body (521) and a needle cap (522); the needle cap (522) is located within the end cap (53); the needle body (521) extends out of the front end of the guide stepped hole (511); a return spring (55) is arranged in the guide stepped hole (511), and the return spring (55) is sleeved on the needle body (521); the stamping head mounting plate (54) is mounted at the rear end of the stamping head (51), and an air passage communicated with the guide step hole (511) is formed in the stamping head mounting plate (54); and the imprint head (51) is radially provided with a proximity switch (56) matched with the end cover (53), and the proximity switch (56) is used for judging whether the engraving needle (52) is reset to the right position.

10. A pneumatic engraving device as claimed in claim 2, characterized in that the rear end of the mounting plate (11) is detachably mounted with a rear plate (13), the top of the side plate (12) is detachably mounted with a top plate (14), and the mounting plate (11), the rear plate (13), the top plate (14) and the two side plates (12) together enclose a housing forming a front opening.