CN217412100U - Punching device for plates - Google Patents

Abstract

The application discloses punching device of panel, include the workstation and set up fixed establishment and transport mechanism on the workstation, fixed establishment is used for the fixed plate body, and transport mechanism is used for transporting the plate body, the top of workstation is equipped with the fixed plate, is equipped with the backup pad between fixed plate and the workstation, still includes: the punching mechanism is arranged on the workbench and comprises a punching cylinder and a punching head, and the punching head is provided with a connector connected with an output shaft of the punching cylinder; the mounting mechanism is arranged on the punching mechanism, positioned between the stamping head and the stamping cylinder and used for connecting the stamping cylinder and the stamping head; the punching mechanism comprises a fixing plate and a punching mechanism, wherein the fixing plate is arranged on the base, and the punching mechanism is arranged on the fixing plate.

Description

Punching device for plates

Technical Field

The utility model belongs to the technical field of with regard to panel processing, especially, relate to a punching device of panel.

Background

The definition of panel is very extensive now in science and technology development, all has the panel of different materials in furniture manufacturing, building trade, processing industry etc. in the production manufacturing process, often need punch in advance to panel needs, the subsequent equipment of being convenient for, in the material course of working, need according to the structure of later stage panel processing, at the equidistant poriform structure of punching press different shapes in sheet metal's surface.

However, the existing punching device has many problems, i.e., sometimes, a plurality of holes with different hole diameters are needed on one plate, and the punch cannot be replaced quickly and the structure after replacement is not stable enough; secondly, do not have fine fixing device during punching a hole, lead to panel can take place the skew to lead to punching a hole offset, influence panel production quality.

The publication number is: CN 113492172B's patent, it discloses a sheet metal punching device, including base, crossbeam, spacing subassembly and punching press subassembly, the stand is installed to the top both sides of base, and the crossbeam is installed at the top of stand, and the punching press subassembly is installed to the bottom of crossbeam, and interchangeable punching press head is installed to the bottom of punching press subassembly, run through on the base and be provided with the second and run through the groove, the second runs through the inslot and installs spacing subassembly, installs the supporting component on the base, and sliding fit has the feeding subassembly on the supporting component, feeds and runs through to be provided with sheet metal in the subassembly.

Above-mentioned punching device passes through the combination of spacing subassembly and interchangeable punching press head, can punch out the hole of equidimension in different apertures to sheet metal when the punching press subassembly pushes down, under the cooperation of supporting component and feeding subassembly, can make sheet metal nimble removal between spacing subassembly and interchangeable punching press head, can realize that different positions punch out the hole of equidimension on sheet metal, do not need the secondary installation location, the position precision between each hole of sheet metal has been improved, but in the in-service use process, above-mentioned punching press head can be replaced, but connection structure's wall cloth is not high enough, long-time use still can produce not hard up, still need strengthen.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a punching device of panel can solve above-mentioned problem.

The utility model aims at providing a punching device of panel, including the workstation with set up fixed establishment and the transport mechanism on the workstation, fixed establishment is used for the fixed plate body, and transport mechanism is used for transporting the plate body, the top of workstation is equipped with the fixed plate, is equipped with the backup pad between fixed plate and the workstation, still includes: the punching mechanism is arranged on the workbench and comprises a punching cylinder and a punching head, and the punching head is provided with a connector connected with an output shaft of the punching cylinder; the mounting mechanism is arranged on the punching mechanism, positioned between the punching head and the punching cylinder and used for connecting the punching cylinder and the punching head; the punching device comprises a fixing plate, a punching mechanism and a regulating mechanism, wherein the regulating mechanism is arranged on the fixing plate, connected with the punching mechanism and used for regulating the position of the punching mechanism.

Adopt foretell punching device of a panel, through be equipped with fixing machine and transport mechanism on the workstation, can transport and fix the panel that needs punched a hole, improve machining efficiency and the stability of punching a hole, through being equipped with the mechanism of punching a hole, through the cooperation between punching press cylinder and the punching press head, can punch a hole to panel, through being equipped with installation mechanism, can install between punching press cylinder and the punching press head, connect, both can improve joint strength between punching press cylinder and the punching press head, can also improve the connection stability between punching press cylinder and the punching press head, through being equipped with adjustment mechanism, can adjust the position of punching press mechanism, can realize punching a hole of different positions.

Further, the mounting mechanism includes: the top of the inner sleeve is connected with an output shaft of the stamping cylinder, an accommodating groove for accommodating the connector is formed in the inner part of the inner sleeve, and a plurality of positioning holes penetrating through the inner wall of the accommodating groove to the outer wall of the inner sleeve are formed in the inner wall of the accommodating groove; the positioning bolt is arranged in the positioning hole, one end of the positioning bolt is contacted with the outer wall of the connector, the other end of the positioning bolt extends out of the positioning hole and is positioned outside the inner sleeve, and a limiting hole matched with the positioning bolt is arranged on the outer wall of the connector; the outer sleeve is arranged outside the inner sleeve and comprises a left cylinder body and a right cylinder body, a first mounting lug is arranged on the left cylinder body, a second mounting lug corresponding to the first mounting lug is arranged on the right cylinder body, and the first mounting lug and the second mounting lug are connected through a bolt; the inner walls of the left barrel body and the right barrel body are respectively provided with a plurality of convex blocks, the positions of the convex blocks correspond to the positioning holes, and when the outer sleeve is connected with the inner sleeve, the convex blocks are abutted to the positioning bolts.

When the mounting is carried out, the plurality of positioning bolts in the inner sleeve are pulled outwards, the connector is mounted in the holding tank, the positioning holes correspond to the limiting holes in position, the positioning bolts are pressed inwards and enter the limiting holes, then the left barrel body and the right barrel body are mounted outside the inner sleeve together, the protruding blocks are aligned to the positioning holes, the first mounting lugs and the second mounting lugs are aligned and then locked through bolts, and the protruding blocks are abutted to the positioning bolts in the locking process, so that the mounting is completed; but when the different punching press heads of needs replacement, only need unscrew the bolt on first installation ear and the second installation ear, take off left side barrel and right barrel, outwards stimulate the locating stud both detachable connector again, the overhead connector of punching press that will need the replacement put into the holding tank again can, the step of later repeated installation both can accomplish the replacement, and is swift again convenient, can improve installation and dismantlement efficiency, and can make through the setting of lug, the outer sleeve, inner skleeve and connector firmly fix together, effectively prevent to become flexible.

Further: be equipped with inside bellied holding ring on the inner wall of left side barrel and right barrel, be equipped with the constant head tank with the holding ring adaptation on the outer wall of inner skleeve, and the constant head tank is located the upper portion of inner skleeve.

Through being equipped with inside bellied holding ring on the inner wall of left barrel, the holding ring also has the setting in right barrel, be equipped with on the outer wall of inner sleeve with the constant head tank of holding ring adaptation, when left barrel, right barrel and inner skleeve installation, can inject the position of left barrel and right barrel through the cooperation of holding ring and constant head tank, offset when preventing left barrel and right barrel installation, can make the lug in left barrel and the right barrel can be accurate and the gim peg contact.

Furthermore, the locating bolt is equipped with the locking piece near the one end in spacing hole, be equipped with the first locking hole with the locking piece adaptation on the spacing hole, be equipped with the second locking hole with the locking piece adaptation on the inner wall of inner skleeve.

Through be equipped with the locking piece on the pilot pin and be equipped with the first locking hole with the locking piece adaptation on spacing hole, the first locking hole is the same with the axis in spacing hole and the aperture in first locking hole is greater than the aperture in spacing hole, can improve the area of contact between pilot pin and the connecting block, thereby the inner skleeve, stability in connection and joint strength between inner skleeve and the connecting block, and simultaneously, there is the second locking hole through what, can accomodate the locking piece in the second locking hole, be convenient for the installation between connecting block and the inner skleeve.

Further, the adjustment mechanism includes: the supporting rod is arranged between the two supporting plates; the sliding block is sleeved on the supporting rod and can slide on the supporting rod, and the stamping cylinder is arranged at the bottom of the sliding block; the driving motor is arranged on the sliding block, and an output shaft of the driving motor is provided with a driving gear; the bottom of the fixed plate is provided with a rack, and the rack is meshed with the driving gear.

When the punching mechanism needs to adjust the position, the driving motor is controlled to be started, the driving motor drives the driving gear to rotate when rotating, the driving gear is meshed with the rack, the motor is placed on the sliding block, the sliding block is sleeved on the supporting rod, the sliding block can slide left and right on the supporting rod along with the operation of the driving motor, and meanwhile, the punching cylinder is installed at the bottom of the sliding block and can move along with the sliding block when the sliding block moves, so that the position of the punching mechanism is adjusted, and punching requirements of different parts are met.

Furthermore, the bottom of workstation is equipped with the collecting box, and the top of collecting box is equipped with the passage that runs through to the workstation, and is equipped with the collection box in the collecting box, collects the bottom of the box portion and is equipped with the pulley, runs through the clearance mouth of workstation on the lateral wall of collecting box, is equipped with the sliding door on the clearance mouth.

Be equipped with the collecting box through the bottom at the workstation, and the top of collecting box is equipped with the passage that runs through to the workstation, the clout that the plate body formed after punching a hole passes through the passage and collects to the collecting box in, fall into the collection box at last, the staff centralized processing of being convenient for, the staff can be through opening the sliding door on the clearance mouth, take out the collection box in the collecting box, put the collection incasement again after handling the clout of collecting the box, the clout needs periodic cleaning in the collection box, in addition, the setting of pulley can be convenient for the staff to take out, place and collect the box.

The utility model has the advantages that:

1. the installation can be completed quickly by arranging the installation mechanism; when different punching heads need to be replaced, only the bolts on the first mounting lug and the second mounting lug need to be unscrewed, the left cylinder body and the right cylinder body are taken down, the positioning bolt is pulled outwards, the connector can be taken down, the connector on the punching head needing to be replaced is placed into the accommodating groove again, and then the step of repeated installation can finish replacement, so that the replacement is quick and convenient, the installation and disassembly efficiency can be improved, and the outer sleeve, the inner sleeve and the connector can be firmly fixed together through the arrangement of the convex blocks, and the looseness can be effectively prevented;

2. by arranging the adjusting mechanism, the driving motor is controlled to be started, the driving gear is driven to rotate when the driving motor rotates, the sliding block can slide left and right on the supporting rod along with the operation of the driving motor, and meanwhile, the stamping cylinder can also move along with the sliding block when the sliding block moves, so that the position of the punching mechanism is adjusted, and the punching requirements of different parts are met;

3. the collecting box is arranged at the bottom of the workbench, the guide pipe penetrating through the workbench is arranged at the top of the collecting box, and the excess material formed after the punching of the plate body is collected into the collecting box through the guide pipe and finally falls into the collecting box, so that the centralized processing of workers is facilitated.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural diagram of the mounting mechanism of the present invention.

The reference numbers in the figures are: 100. a work table; 110. a fixing plate; 120. a support plate; 200. a punching mechanism; 210. punching a cylinder; 220. punching a head; 230. a connector; 300. an installation mechanism; 310. an inner sleeve; 311. accommodating grooves; 312. positioning holes; 313. positioning a groove; 314. a second locking hole; 320. positioning bolts; 321. a locking block; 330. a limiting hole; 331. a first locking hole; 340. an outer sleeve; 341. a left barrel; 342. a right cylinder; 343. a first mounting ear; 344. a second mounting ear; 345. a bump; 346. a positioning ring; 400. an adjustment mechanism; 410. a support bar; 420. a slider; 430. a drive motor; 440. a drive gear; 450. a rack; 500. a collection box; 510. a material guide pipe; 520. a collection box; 530. a pulley; 540. cleaning the opening; 550. and (5) sliding the door.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

The following describes in detail a punching apparatus for a sheet material according to an embodiment of the present application with reference to the accompanying drawings.

Example 1:

as shown in fig. 1 and fig. 2, an embodiment of the present application provides a punching apparatus for a plate, including a workbench 100, and a fixing mechanism and a transporting mechanism that are arranged on the workbench 100, where the fixing mechanism is used for fixing a plate 110, the transporting mechanism is used for transporting the plate, a fixing plate 110 is arranged on the top of the workbench 100, a supporting plate 120 is arranged between the fixing plate 110 and the workbench 100, and the punching apparatus for a plate further includes: the punching mechanism 200 is arranged on the workbench 100 and comprises a punching cylinder 210 and a punching head 220, and the punching head 220 is provided with a connecting head 230 connected with an output shaft of the punching cylinder 210; the mounting mechanism 300 is arranged on the punching mechanism 200, is positioned between the punching head 220 and the punching cylinder 210, and is used for connecting the punching cylinder 210 and the punching head 220; the device further comprises an adjusting mechanism 400, which is arranged on the fixing plate 110 and connected with the punching mechanism 200, and is used for adjusting the position of the punching mechanism 200.

In some embodiments of the present application, as shown in fig. 1, the punching apparatus for a plate described above is adopted, and a fixing machine and a transportation mechanism are provided on the worktable 100, so that the plate to be punched can be transported and fixed, the processing efficiency and the punching stability are improved, and the punching mechanism 200 is provided, so that the plate can be punched through cooperation between the punching cylinder 210 and the punching head 220, and the installation mechanism 300 is provided, so that the punching cylinder 210 and the punching head 220 can be installed and connected, so that the connection strength between the punching cylinder 210 and the punching head 220 can be improved, the connection stability between the punching cylinder 210 and the punching head 220 can be improved, and the position of the punching mechanism 200 can be adjusted through the adjustment mechanism 400, so that punching at different positions can be realized.

Example 2:

the embodiment of the application provides a punching device for a plate, which comprises the following technical characteristics besides the technical characteristics.

As shown in FIGS. 1 and 2, the mounting mechanism 300 includes: an inner sleeve 310, the top of which is connected to the output shaft of the ram cylinder 210, wherein an accommodating groove 311 for accommodating the connector 230 is formed inside the inner sleeve 310, and a plurality of positioning holes 312 penetrating through the outer wall of the inner sleeve 310 are formed on the inner wall of the accommodating groove 311; a positioning pin 320 disposed in the positioning hole 312, wherein one end of the positioning pin contacts with the outer wall of the connector 230, and the other end extends out of the positioning hole 312 and is located outside the inner sleeve 310, and a limiting hole 330 adapted to the positioning pin 320 is disposed on the outer wall of the connector 230; the outer sleeve 340 is arranged outside the inner sleeve 310 and comprises a left cylinder 341 and a right cylinder 342, the left cylinder 341 is provided with a first mounting lug 343, the right cylinder 342 is provided with a second mounting lug 344 corresponding to the first mounting lug 343, and the first mounting lug 343 is connected with the second mounting lug 344 through a bolt; the inner walls of the left cylinder 341 and the right cylinder 342 are respectively provided with a plurality of bumps 345, the positions of the bumps 345 correspond to the positioning holes 312, and when the outer sleeve 340 is connected with the inner sleeve 310, the bumps 345 are abutted against the positioning bolts 320.

In the embodiment of the application, during installation, the plurality of positioning bolts 320 in the inner sleeve 310 are pulled outwards, the connector 230 is installed in the accommodating groove 311, the positioning hole 312 corresponds to the position of the limiting hole 330, the positioning bolts 320 are pressed inwards, the positioning bolts 320 enter the limiting hole 330, the left cylinder 341 and the right cylinder 342 are installed outside the inner sleeve 310 together, the protrusion 345 is aligned with the positioning hole 312, the first installation lug 343 and the second installation lug 344 are aligned and then locked by bolts, and the protrusion 345 abuts against the positioning bolts 320 in the locking process, so that installation is completed; however, when different punching heads 220 need to be replaced, the bolts on the first mounting lug 343 and the second mounting lug 344 need to be unscrewed, the left cylinder 341 and the right cylinder 342 are removed, the positioning bolt 320 is pulled outwards, the connector 230 can be removed, and the connector 230 on the punching head 220 needing to be replaced is placed in the accommodating groove 311 again.

Furthermore, the inner walls of the left cylinder 341 and the right cylinder 342 are provided with positioning rings 346 protruding inwards, the outer wall of the inner sleeve 310 is provided with positioning grooves 313 matched with the positioning rings 346, and the positioning grooves 313 are located at the upper part of the inner sleeve 310.

In some embodiments of the present application, by providing the positioning ring 346 protruding inward on the inner wall of the left cylinder 341, the positioning ring 346 is also provided in the right cylinder 342, and providing the positioning groove 313 adapted to the positioning ring 346 on the outer wall of the inner sleeve 310, when the left cylinder 341 and the right cylinder 342 are installed with the inner sleeve 310, the positions of the left cylinder 341 and the right cylinder 342 can be defined by the cooperation of the positioning ring 346 and the positioning groove 313, so as to prevent the position deviation when the left cylinder 341 and the right cylinder 342 are installed, and thus the protrusion 345 in the left cylinder 341 and the right cylinder 342 can accurately contact with the positioning pin 320.

Furthermore, a locking block 321 is disposed at one end of the positioning pin 320 close to the limiting hole 330, a first locking hole 331 adapted to the locking block 321 is disposed in the limiting hole 330, and a second locking hole 314 adapted to the locking block 321 is disposed on the inner wall of the inner sleeve 310.

In the embodiment of the application, the locking block 321 is arranged on the positioning bolt 320, the first locking hole 331 matched with the locking block 321 is arranged on the limiting hole 330, the axes of the first locking hole 331 and the limiting hole 330 are the same, the aperture of the first locking hole 331 is larger than that of the limiting hole 330, the contact area between the positioning bolt 320 and the connecting block can be increased, and therefore the connecting stability and the connecting strength between the inner sleeve 310 and the connecting block can be improved, meanwhile, the locking block 321 can be accommodated in the second locking hole 314 by the second locking hole 314, and the installation between the connecting block and the inner sleeve 310 is facilitated.

Example 3:

the embodiment of the application provides a punching device for a plate, which comprises the following technical characteristics besides the technical characteristics.

As shown in fig. 1, the adjustment mechanism 400 includes: a support bar 410 disposed between the two support plates 120; a sliding block 420 which is sleeved on the supporting rod 410 and can slide on the supporting rod 410, and the punching cylinder 210 is arranged at the bottom of the sliding block 420; the driving motor 430 is arranged on the sliding block 420, and the output shaft of the driving motor 430 is provided with a driving gear 440; wherein, the bottom of the fixed plate 110 is provided with a rack 450, and the rack 450 is engaged with the driving gear 440.

In the embodiment of the present application, when the punching mechanism 200 needs to adjust the position, the driving motor 430 is controlled to be turned on, the driving motor 430 drives the driving gear 440 to rotate when rotating, because the driving gear 440 is meshed with the rack 450, and the motor is disposed on the slider 420, and the slider 420 is sleeved on the supporting rod 410, the slider 420 can slide left and right on the supporting rod 410 along with the operation of the driving motor 430, and meanwhile, because the punching cylinder 210 is installed at the bottom of the slider 420, the punching cylinder 210 can move along with the slider 420 when the slider 420 moves, thereby adjusting the position of the punching mechanism 200 and completing the punching requirements of different parts.

Example 4:

the embodiment of the application provides a punching device for a plate, which comprises the following technical characteristics besides the technical characteristics.

As shown in fig. 1, a collection box 500 is disposed at the bottom of the workbench 100, a material guide tube 510 penetrating through the workbench 100 is disposed at the top of the collection box 500, a collection box 520 is disposed in the collection box 500, a pulley 530 is disposed at the bottom of the collection box 520, a cleaning opening 540 penetrating through the workbench 100 is disposed on the side wall of the collection box 500, and a sliding door 550 is disposed on the cleaning opening 540.

In this embodiment, be equipped with collection box 500 through the bottom at workstation 100, and the top of collection box 500 is equipped with the passage 510 that runs through to workstation 100, the clout that the plate body punched a hole back formed passes through the passage 510 and collects in collection box 500, fall into collection box 520 at last, the staff centralized processing of being convenient for, the staff can be through opening the sliding door 550 on the clearance mouth 540, take out the collection box 520 in the collection box 500, put in the collection box 500 again after handling the clout of collecting box 520, the clout needs regularly to be cleared up in the collection box 520, in addition, the setting of pulley 530 can be convenient for the staff to take out, place and collect box 520.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (6)

1. The utility model provides a punching device of panel, includes workstation (100) and sets up fixed establishment and the transport mechanism on workstation (100), and fixed establishment is used for the fixed plate body, and transport mechanism is used for transporting the plate body, its characterized in that: the top of workstation (100) is equipped with fixed plate (110), is equipped with backup pad (120) between fixed plate (110) and workstation (100), still includes:

the punching mechanism (200) is arranged on the workbench (100) and comprises a punching cylinder (210) and a punching head (220), and a connector (230) connected with an output shaft of the punching cylinder (210) is arranged on the punching head (220);

the mounting mechanism (300) is arranged on the punching mechanism (200), is positioned between the stamping head (220) and the stamping cylinder (210), and is used for connecting the stamping cylinder (210) and the stamping head (220);

the punching device also comprises an adjusting mechanism (400), which is arranged on the fixing plate (110), connected with the punching mechanism (200) and used for adjusting the position of the punching mechanism (200).

2. A punching apparatus for a sheet material according to claim 1, wherein: the mounting mechanism (300) comprises:

the top of the inner sleeve (310) is connected with an output shaft of the stamping cylinder (210), an accommodating groove (311) for accommodating the connector (230) is formed in the inner sleeve (310), and a plurality of positioning holes (312) penetrating through the inner wall of the accommodating groove (311) to the outer wall of the inner sleeve (310) are formed in the inner wall of the accommodating groove (311);

the positioning bolt (320) is arranged in the positioning hole (312), one end of the positioning bolt is contacted with the outer wall of the connector (230), the other end of the positioning bolt extends out of the positioning hole (312) and is positioned outside the inner sleeve (310), and a limiting hole (330) matched with the positioning bolt (320) is formed in the outer wall of the connector (230);

the outer sleeve (340) is arranged outside the inner sleeve (310) and comprises a left cylinder body (341) and a right cylinder body (342), a first mounting lug (343) is arranged on the left cylinder body (341), a second mounting lug (344) corresponding to the first mounting lug (343) is arranged on the right cylinder body (342), and the first mounting lug (343) is connected with the second mounting lug (344) through a bolt;

the inner walls of the left cylinder body (341) and the right cylinder body (342) are respectively provided with a plurality of bumps (345), the positions of the bumps (345) correspond to the positioning holes (312), and when the outer sleeve (340) is connected with the inner sleeve (310), the bumps (345) are abutted to the positioning bolts (320).

3. A punching apparatus for a sheet material according to claim 2, wherein: positioning rings (346) protruding inwards are arranged on the inner walls of the left barrel body (341) and the right barrel body (342), positioning grooves (313) matched with the positioning rings (346) are arranged on the outer wall of the inner sleeve (310), and the positioning grooves (313) are located at the upper portion of the inner sleeve (310).

4. A punching apparatus for a sheet material according to claim 2, wherein: the utility model discloses a locking device, including inner sleeve (310), locating bolt (320), spacing hole (330), be equipped with the first locking hole (331) with locking block (321) adaptation on spacing hole (330), be equipped with on the inner wall of inner sleeve (310) with second locking hole (314) of locking block (321) adaptation.

5. A punching apparatus for a sheet material according to claim 1, wherein: the adjustment mechanism (400) comprises:

a support bar (410) disposed between the two support plates (120);

the sliding block (420) is sleeved on the supporting rod (410) and can slide on the supporting rod (410), and the stamping cylinder (210) is arranged at the bottom of the sliding block (420);

the driving motor (430) is arranged on the sliding block (420), and a driving gear (440) is arranged on an output shaft of the driving motor (430);

wherein, the bottom of fixed plate (110) is equipped with rack (450), and rack (450) and drive gear (440) mesh mutually.

6. A punch apparatus for a sheet material according to claim 1, characterised in that: the bottom of workstation (100) is equipped with collecting box (500), and the top of collecting box (500) is equipped with passage (510) that run through to workstation (100), and is equipped with in collecting box (500) and collects box (520), collects box (520) bottom and is equipped with pulley (530), runs through clearance mouth (540) of workstation (100) on the lateral wall of collecting box (500), is equipped with sliding door (550) on clearance mouth (540).

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