CN214488493U - Numerical control turret punch press - Google Patents

Abstract

The application relates to a numerical control turret punch press, it includes the workstation, workstation length direction's both ends are equipped with clamping mechanism and punching press mechanism respectively, clamping mechanism is equipped with a plurality ofly, clamping mechanism include with workstation fixed connection's mount, install the direction adjustment subassembly on the mount, install the clamping component on the direction adjustment subassembly, the direction adjustment subassembly is located between workstation and the mount, direction adjustment subassembly and mount parallel arrangement, clamping component is located the one end of direction adjustment subassembly towards the workstation center. The punching precision of the numerical control turret punch press is improved.

Description

Numerical control turret punch press

Technical Field

The application relates to the technical field of stamping equipment, in particular to a numerical control turret punch press.

Background

The numerical control turret punch press consists of a computer control system, a hydraulic power system, a feeding mechanism, a die warehouse and a die selection system. The numerical control turret punch press sends the plate to the position to be processed by the servo feeding mechanism through the programmed processing program, simultaneously, the corresponding die in the die library is selected by the die selection system, and the hydraulic power system performs stamping according to the program, thereby automatically finishing the processing of the workpiece.

At present, a Chinese patent with publication number CN107876645A discloses a numerical control turret punch press, wherein an X-axis driving part is positioned in a feeding frame, an output end of the X-axis driving part is connected with a base and controls the base to move along the X-axis direction of a machine tool, and an output end of a Y-axis driving part is connected with the feeding frame and controls the feeding frame to move along the Y-axis direction of the machine tool; the clamp is at least two and can be slidably arranged on the base, a proximity switch is arranged at the clamping end of the clamp, and a signal line of the proximity switch is communicated with a machine tool control system; a plurality of stations are arranged in the turret, and an upper die and a lower die are arranged on each station.

In the related art, in the process of adjusting the punching position of the metal sheet by the feeding frame, due to the fact that the area of the metal sheet is large, one end, far away from the feeding frame, of the metal sheet is prone to shaking, bending and the like, and the punching position is prone to shifting.

SUMMERY OF THE UTILITY MODEL

In order to improve the punching precision of the numerical control turret punch press, the application provides the numerical control turret punch press.

The application provides a numerical control turret punch press adopts following technical scheme:

the utility model provides a numerical control turrent punch press, includes the workstation, workstation length direction's both ends are equipped with clamping mechanism and punching press mechanism respectively, clamping mechanism is equipped with a plurality ofly, clamping mechanism include with workstation fixed connection's mount, install the direction adjustment subassembly on the mount, install the clamping component on the direction adjustment subassembly, the direction adjustment subassembly is located between workstation and the mount, the direction adjustment subassembly sets up along mount length direction, the clamping component is located one side of direction adjustment subassembly towards the workstation center.

Through adopting above-mentioned technical scheme, three clamping components press from both sides tightly fixedly to three sides of sheet metal respectively, direction adjustment subassembly is adjusted the position of sheet metal on the workstation simultaneously, make the required position that punches a hole of sheet metal aim at punching press mechanism, sheet metal passes through clamping component's clamping action, be in the horizontality all the time at the removal in-process, sheet metal is at the in-process of adjustment punching position and punching press mechanism when punching a hole, sheet metal is difficult for taking place to rock, the condition such as crooked, the difficult skew that takes place in position of punching a hole, improve numerical control turret punch press's the precision of punching a hole.

Optionally, the direction adjusting assembly comprises a first ball screw penetrating through the fixing frame, a first driving motor extending out of one end of the fixing frame from the first ball screw, a sliding plate sleeved on the first ball screw, a first hydraulic rod fixedly connected with the sliding plate, and a mounting plate far away from one end of the sliding plate from the first hydraulic rod, the first ball screw is arranged along the length direction of the fixing frame, a limiting groove is formed in the fixing frame, and one end of the sliding plate extends into the limiting groove.

Through adopting above-mentioned technical scheme, first ball screw and slider cooperation are used for the slider drives clamping component and slides along mount length direction, and first hydraulic stem is flexible simultaneously, adjusts clamping component to the tight position of clamp of sheet metal side, and clamping component can realize pressing from both sides tight spacing to sheet metal's trilateral homoenergetic.

Optionally, the vertical setting of clamping components, clamping components includes second driving motor, second ball screw, pinch-off blades and fixed plate, second driving motor fixed connection is on the mounting panel, the one end of second ball screw and the coaxial fixed connection of second driving motor's drive shaft, wear to establish in proper order on pinch-off blades and fixed plate the other end of second ball screw, pinch-off blades and second ball screw threaded connection, fixed plate fixed connection is on the mounting panel, the fixed plate rotates with second ball screw to be connected.

Through adopting above-mentioned technical scheme, second driving motor drives the rotation of second ball screw, the clamp plate slides towards the fixed plate, sheet metal's side is located between clamp plate and the fixed plate, when clamp plate contradicts with the fixed plate, sheet metal's side is pressed from both sides tightly, when sheet metal need adjust the position of punching a hole, direction adjusting part drives sheet metal and removes, sheet metal remains stable throughout at the removal in-process, reduce the position that punches a hole and take place the possibility of skew, improve numerical control turret punch press's the precision of punching a hole.

Optionally, one side of the clamping plate opposite to the fixing plate is provided with a magnetic strip.

Through adopting above-mentioned technical scheme, through the magnetic adsorption of magnetism strip between grip block and the fixed plate, strengthen the compressive strength between the two, further reduce sheet metal and take place the relative slip's possibility between grip block and fixed plate, improve the punching precision of punch press.

Optionally, the direction adjusting assemblies are arranged in two groups in the vertical direction, and the clamping assemblies are arranged in two groups along the length direction of the fixing frame.

Through adopting above-mentioned technical scheme, two sets of direction adjustment subassembly and clamping assembly increase clamping mechanism and sheet metal's area of contact, further increase clamping mechanism to sheet metal's clamping stability.

Optionally, the punching mechanism comprises a conversion assembly, a compression assembly and a punching assembly, the conversion assembly comprises a portal frame fixedly connected to the workbench, a rotating shaft penetrating between the portal frame and the workbench, an upper rotary table sleeved on the rotating shaft, and a lower rotary table coaxially arranged with the upper rotary table, the lower rotary table is positioned below the upper rotary table, one end of the rotating shaft is rotatably connected with the portal frame, the other end of the rotating shaft is rotatably connected with the workbench, the upper rotary table is connected with the rotating shaft in a sliding manner, the lower rotary table is fixedly connected with the rotating shaft, a second hydraulic rod vertically arranged is arranged on the portal frame and positioned above the upper rotary table, the second hydraulic rod is vertically arranged with the upper rotary table, an electromagnetic block is arranged at one end of the second hydraulic rod close to the upper rotary table, the electromagnetic block is magnetically adsorbed to the upper rotary table, and the compression assembly is positioned between the upper rotary table and the lower rotary table, the pressing assembly and the punching assembly are distributed along the radial direction of the upper rotary table, the pressing assembly and the punching assembly are positioned on the same straight line and form a group, and a plurality of groups are uniformly distributed on the upper rotary table along the circumferential direction of the upper rotary table.

Through adopting above-mentioned technical scheme, before punching a hole the subassembly, the second hydraulic stem drives and goes up the carousel and push down for compress tightly the subassembly and lie in the side between carousel and the carousel down to sheet metal earlier and compress tightly, compress tightly subassembly and three clamping components cooperation and use, press from both sides tightly the four sides of sheet metal, make sheet metal remain the horizontality throughout when punching a hole, further improve the precision of punching a hole.

Optionally, the compressing assembly comprises a connecting rod fixedly connected to one side of the upper rotary table close to the lower rotary table and a pressing plate fixedly connected with the connecting rod.

Through adopting above-mentioned technical scheme, the clamp plate compresses tightly the sheet metal side for sheet metal's four sides all receive spacingly, and sheet metal takes place the possibility of bending when reducing the punching press.

Optionally, the opposite sides of the pressing plate and the lower turntable are provided with friction increasing layers.

Through adopting above-mentioned technical scheme, when punching a hole the subassembly, thereby the sheet metal receives great impact force, thereby easily slides and takes place local bending, and increases the frictional force of friction layer increase sheet metal between last carousel and lower carousel, reduces the sheet metal gliding possibility when punching a hole, further improves the machining precision.

In summary, the present application includes at least one of the following beneficial technical effects:

1. three clamping mechanisms are matched for use, and clamp and fix three edges of the metal sheet, so that the possibility of deviation of a specified punching position caused by shaking of the metal sheet in the moving process is reduced, and the punching precision is improved;

2. set up through punching press mechanism between last carousel and the lower carousel and compress tightly the subassembly, the sheet metal before punching a hole, its side that is located between carousel and the lower carousel compresses tightly by compressing tightly the subassembly, and the four sides of sheet metal all compress tightly fixedly, take place the possibility that local bending when reducing sheet metal and punching a hole, further improve the precision of punching a hole.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic structural view of a clamping mechanism according to an embodiment of the present application;

FIG. 3 is a schematic structural view of a clamping assembly of an embodiment of the present application;

FIG. 4 is a schematic cross-sectional view of a stamping mechanism according to an embodiment of the present disclosure;

FIG. 5 is a schematic cross-sectional view in the front view direction of a punching mechanism according to an embodiment of the present application;

fig. 6 is a schematic sectional structure view of a mold according to an embodiment of the present application.

Description of reference numerals: 1. a work table; 11. a gantry; 111. a top plate; 12. a limiting groove; 2. a clamping mechanism; 21. a fixed mount; 211. a support portion; 212. a connecting portion; 22. a direction adjustment assembly; 221. a first ball screw; 222. a first drive motor; 223. a slide plate; 224. a first hydraulic lever; 225. mounting a plate; 23. a clamping assembly; 231. a second drive motor; 232. a second ball screw; 233. a clamping plate; 2331. a dovetail block; 2332. a dovetail groove; 234. a fixing plate; 25. a magnetic strip; 3. a stamping mechanism; 31. a conversion component; 311. a servo motor; 312. a rotating shaft; 313. a second hydraulic rod; 3131. an electromagnetic block; 314. an upper turntable; 3141. a slider; 3142. a chute; 3143. a guide groove; 315. a lower turntable; 3151. notching; 32. a compression assembly; 321. a connecting rod; 322. pressing a plate; 33. a punching assembly; 331. a mold; 3311. a limiting part; 3312. a cylinder; 3313. a return spring; 3314. a blocking plate; 3315. an end cap; 3316. a protrusion; 3317. a stepped bore; 3318. a cutter head; 3319. a lubricating layer; 332. a third hydraulic lever; 34. and (4) a friction increasing layer.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses a numerical control turret punch press. Referring to fig. 1, a numerical control turret punch press comprises a workbench 1, wherein two ends of the workbench 1 in the length direction are respectively provided with a clamping mechanism 2 and a punching mechanism 3, the clamping mechanisms 2 are arranged in a plurality of numbers, the two clamping mechanisms 2 are located at two ends of the workbench 1 in the width direction, the clamping mechanisms 2 clamp three side edges of a metal sheet, and the metal sheet is always parallel to the workbench 1 in the adjustment process of the to-be-processed part of the metal sheet, so that the punching precision of the numerical control turret punch press is improved.

Referring to fig. 1 and 2, the clamping mechanism 2 includes a fixed frame 21, a direction adjustment assembly 22 installed in the fixed frame 21, and a clamping assembly 23 installed on the direction adjustment assembly 22.

Referring to fig. 2, the fixing frame 21 includes two vertically disposed supporting portions 211 and a horizontally disposed connecting portion 212, the supporting portions 211 are fixedly connected to the worktable 1, the connecting portion 212 is erected between the two supporting portions 211, and the supporting portions 211 and the connecting portion 212 are integrally formed. The fixing bracket 21 is used for fixedly mounting the direction adjustment assembly 22.

Referring to fig. 2, the direction adjustment assembly 22 is located between the working table 1 and the fixing frame 21, and the direction adjustment assembly 22 includes a first ball screw 221 installed between the two supporting portions 211, a first driving motor 222 fixedly connected to one end of the first ball screw 221 extending out of the supporting portion 211, a sliding plate 223 screwed to the first ball screw 221, a first hydraulic rod 224 fixedly connected to the sliding plate 223, and a mounting plate 225 fixedly connected to one end of the first hydraulic rod 224 far from the sliding plate 223.

Referring to fig. 2, a first driving motor 222 is fixedly installed on one of the supporting portions 211 to drive the first ball screw 221 to rotate. One end of the first ball screw 221, which is far away from the first driving motor 222, is rotatably connected to the other support portion 211, the slide plate 223 is sleeved on the first ball screw 221 through the mounting hole, the first ball screw 221 rotates, and the slide plate 223 can slide along the length of the first ball screw 221.

Referring to fig. 2, a mounting plate 225 is used to mount the clamping assembly 23. Two first hydraulic rods 224 are arranged, the two first hydraulic rods 224 are arranged in parallel, the first hydraulic rods 224 are connected with the sliding plates 223 and the mounting plate 225, and the first hydraulic rods 224 extend and retract to control the mounting plate 225 to slide along the length direction of the workbench 1.

Referring to fig. 2 and 3, the clamping assembly 23 is located on a side of the direction adjustment assembly 22 facing the center of the table 1. The clamping assembly 23 includes a second driving motor 231, a second ball screw 232, a clamping plate 233, and a fixing plate 234.

Referring to fig. 3, the second driving motor 231 is fixedly connected to the mounting plate 225, an output shaft of the second driving motor 231 is fixedly connected to one end of the second ball screw 232, the other end of the second ball screw 232 sequentially passes through the clamping plate 233, the fixing plate 234 is fixedly connected to the mounting plate 225, and one end of the second ball screw 232 extending out of the clamping plate 233 is rotatably connected to the fixing plate 234.

Referring to fig. 3, a dovetail block 2331 is disposed at one end of the clamping plate 233 close to the mounting plate 225, a dovetail groove 2332 is formed in the mounting plate 225, the dovetail block 2331 is inserted into the dovetail groove 2332, and the dovetail block 2331 is in plug-in fit with the dovetail groove 2332 to guide the sliding direction of the clamping plate 233 on the mounting plate 225. The second driving motor 231 drives the second ball screw 232 to rotate, and drives the clamping plate 233 to slide toward the fixing plate 234, so that the side edge of the metal thin plate is clamped between the fixing plate 234 and the clamping plate 233.

Referring to fig. 3, the magnetic strips 25 are disposed on the opposite sides of the clamping plate 233 and the fixed plate 234, and the clamping strength between the clamping plate 233 and the fixed plate 234 is increased by magnetic attraction, so that the possibility of the thin metal plate sliding between the clamping plate 233 and the fixed plate 234 is further reduced, and the machining accuracy of the thin metal plate is improved.

Referring to fig. 2, the direction adjusting assemblies 22 are arranged in two groups along the vertical direction of the supporting portion 211, the two groups of direction adjusting assemblies 22 are parallel, the clamping assemblies 23 are correspondingly arranged in two groups, the two groups of direction adjusting assemblies 22 and the clamping assemblies 23 are matched for use, contact points of the metal sheet and the clamping mechanism 2 are increased, and clamping stability of the clamping mechanism 2 is improved.

Referring to fig. 2, the two sets of clamping assemblies 23 are centered symmetrically about a line connecting midpoints of the two supports 211. Connecting portion 212 and workstation 1 are all opened there are spacing groove 12, and one of them slide 223's one end extends into connecting portion 212 in the spacing groove 12, and the one end of another slide 223 extends into workstation 1's spacing groove 12 in, improves the stability of clamping component 23 motion in-process.

Referring to fig. 2 and 3, when the thin metal plate is in a clamped state, the clamping spaces between the clamping plates 233 and the fixing plate 234 are all located in the same horizontal plane, so that the thin metal plate is always in a horizontal state.

Referring to fig. 1 and 4, the punching mechanism 3 includes a conversion assembly 31, a pressing assembly 32, and a punching assembly 33. The conversion assembly 31 comprises a portal frame 11 fixedly connected to the workbench 1, a servo motor 311 fixedly connected to the portal frame 11, a rotating shaft 312 arranged between the portal frame 11 and the workbench 1 in a penetrating manner, an upper turntable 314 sleeved on the rotating shaft 312, and a lower turntable 315 arranged coaxially with the upper turntable 314.

Referring to fig. 4, the servo motor 311 is located above the gantry 11, and a rotating shaft of the servo motor 311 extends out of the gantry 11 and is fixedly connected to one end of the rotating shaft 312. The rotating shaft 312 is vertically arranged, and one end of the rotating shaft 312, which is far away from the portal frame 11, is rotatably connected with the workbench 1 through a rotating shaft. The servo motor 311 is used for driving the rotating shaft 312 to rotate, and the upper turntable 314 and the lower turntable 315 rotate to replace the punching assembly 33.

Referring to fig. 5, a second hydraulic rod 313 is disposed between the upper turntable 314 and the gantry 11, the second hydraulic rod 313 is disposed parallel to the rotating shaft 312, one end of the second hydraulic rod 313 is fixedly connected to the gantry 11, and the other end of the second hydraulic rod 313 is fixedly connected to an electromagnetic block 3131. The upper turntable 314 is made of iron material, and the electromagnetic block 3131 is energized to generate magnetism, so as to generate magnetic attraction with the upper turntable 314 to drive the upper turntable 314 to slide up and down. When the punching assembly 33 needs to be switched, the electromagnetic block 3131 is powered off, and the rotating shaft 312 drives the upper rotary disk 314 and the lower rotary disk 315 to rotate, so as to complete the replacement of the punching assembly 33.

Referring to fig. 5, a sliding block 3141 is welded on one side of the upper rotating disc 314 close to the rotating shaft 312, a sliding groove 3142 is formed in the outer peripheral wall of the rotating shaft, and the sliding block 3141 is in sliding insertion fit with the sliding groove 3142 to guide the sliding of the upper rotating disc 314. The second hydraulic rod 313 extends and retracts to drive the upper rotating disc 314 to lift.

Referring to fig. 5, two second hydraulic rods 313 are provided, the second hydraulic rods 313 are vertically arranged and are positioned above the upper rotating disc 314, and the two second hydraulic rods 313 are arranged in axial symmetry about the middle point of the gantry 11. The two second hydraulic levers 313 improve the lifting stability of the upper turntable 314.

Referring to fig. 4 and 5, the lower turntable 315 is positioned below the upper turntable 314, and the hold-down assembly 32 is positioned between the lower turntable 315 and the upper turntable 314. The pressing assembly 32 and the punching assembly 33 are sequentially disposed in a direction away from the rotating shaft 312 in a radial direction of the upper turntable 314. The pressing assembly 32 and the punching assembly 33 are positioned on the same straight line and form a group, and a plurality of groups are uniformly distributed on the upper rotary disc 313 along the circumferential direction.

Referring to fig. 4, the pressing assembly 32 includes a connecting rod 321 and a pressing plate 322, wherein one end of the connecting rod 321 is fixedly connected to the upper rotating disk 314, and the other end of the pressing plate 322 is fixedly connected. Before punching, the second hydraulic rod 313 extends out to drive the upper rotary table 314 to move towards the lower rotary table 315, and the metal sheet is tightly propped between the pressing plate 322 and the lower rotary table 315, so that the possibility of sliding of the metal sheet in the punching process is reduced, and the punching precision is further improved.

Referring to fig. 4 and 5, the friction increasing layers 34 are respectively disposed on the opposite sides of the pressing plate 322 and the lower rotary table 315, the friction increasing layers 34 are made of rubber, when the metal sheet is in a clamping state, the friction force between the upper rotary table 314 and the lower rotary table 315 is increased by the friction increasing layers 34, and when the punching assembly 33 punches a hole, the metal sheet is not prone to sliding due to impact force, so that the machining precision is further improved.

Referring to fig. 4 and 6, the punching assembly 33 includes a die 331 penetrating through the upper turntable 314, and a third hydraulic rod 332 located right above the die 331, wherein the gantry 11 is fixedly connected with the top plate 111, and the top plate 111 is used for fixing the third hydraulic rod 332.

Referring to fig. 6, the mold 331 includes a cylinder 3312, a stopper 3311, a return spring 3313, a stopper 3314, a protrusion 3316, an end cap 3315, and a cutter head 3318, which are sequentially disposed along a length direction of the cylinder 3312. The upper turntable 314 is provided with a guide groove 3143, and the cylinder 3312 is inserted into the upper turntable 314 through the guide groove 3143.

The post 3312 and the stopper 3311 are integrally formed. The blocking plate 3314 is sleeved on the cylinder 3312, the blocking plate 3314 is located above the upper turntable 314, and the diameter of the blocking plate 3314 is larger than that of the guide groove 3143.

Referring to fig. 6, the return spring 3313 is sleeved on the cylinder 3312, and both ends of the return spring 3313 are respectively and fixedly connected to the position-limiting portion 3311 and the blocking plate 3314. The outer peripheral wall of the cylinder 3312 is fixedly connected with a protrusion 3316, and when the mold 331 slides, the protrusion 3316 is slidably inserted into the guide groove 3141 to perform a guiding function.

Referring to fig. 6, the cap 3315 is disposed at the bottom of the cylinder 3312, the cap 3315 is threadedly engaged with the cylinder 3312, a stepped bore 3317 is formed along the axis of the cap 3315, and the cutter head 3318 is fixed to the cap 3315 through the stepped bore 3317.

Referring to fig. 5, the lower turntable 315 is provided with a punch groove 3151. The connecting rod 331 extends out to push the position-limiting portion 3311 to move towards the lower turntable 315, and the cutter head 3318 extends into the punching groove 3151 to complete punching of the metal sheet.

Referring to fig. 6, when the cutter head 3318 is worn, the cutter head 3318 can be replaced by rotating the end cap 3315, thereby improving the punching accuracy of the punching machine.

Referring to fig. 6, the surface of the cutting head 3318 is provided with a lubricating layer 3319, the lubricating layer 3319 is made of a lubricating oil, and the lubricating layer 3319 reduces wear of the cutting head 3318 and extends the life of the cutting head 3318.

The implementation principle of the numerical control turret punch press in the embodiment of the application is as follows: starting the first driving motor 222, extending the first hydraulic rod 224, positioning three side edges of the metal sheet between the clamping plate 233 and the fixing plate 234, starting the second driving motor 231, rotating the second ball screw 232, driving the clamping plate 233 to slide towards the fixing plate 234, and clamping the metal sheet;

the three sets of first hydraulic rods 224 respectively extend or contract to adjust the position of the processing part of the metal sheet so that the processing part is opposite to the tool bit 3318;

the second hydraulic rod 313 extends out to drive the upper turntable 314 to slide towards the lower turntable 315, the press plate 322 presses the metal sheet on the lower turntable 315, and the third hydraulic rod 332 extends out to push the die 331 to move towards the lower turntable 315, so that punching of the metal sheet is completed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a numerical control turret punch press, includes workstation (1), workstation (1) length direction's both ends are equipped with clamping mechanism (2) and punching press mechanism (3) respectively, its characterized in that: clamping mechanism (2) are equipped with a plurality ofly, clamping mechanism (2) include with workstation (1) fixed connection's mount (21), install direction adjusting part (22) on mount (21), install clamping component (23) on direction adjusting part (22), direction adjusting part (22) are located between workstation (1) and mount (21), direction adjusting part (22) set up along mount (21) length direction, clamping component (23) are located one side that direction adjusting part (22) are towards workstation (1) center.

2. A numerical control turret punch press according to claim 1, wherein: the direction adjusting assembly (22) comprises a first ball screw (221) arranged on the fixing frame (21) in a penetrating mode, a first driving motor (222) extending out of one end of the fixing frame (21) and connected with the first ball screw (221), a sliding plate (223) connected with the first ball screw (221) in a threaded mode, a first hydraulic rod (224) fixedly connected with the sliding plate (223), and a mounting plate (225) far away from one end of the sliding plate (223) and connected with the first hydraulic rod (224), wherein the first ball screw (221) is arranged along the length direction of the fixing frame (21), a limiting groove (12) is formed in the fixing frame (21), and one end of the sliding plate (223) extends into the limiting groove (12).

3. A numerical control turret punch press according to claim 1, wherein: the vertical setting of clamping unit (23), clamping unit (23) includes second driving motor (231), second ball screw (232), pinch-off blades (233) and fixed plate (234), second driving motor (231) fixed connection is on mounting panel (225), the coaxial fixed connection of one end and the drive shaft of second driving motor (231) of second ball screw (232), the other end of second ball screw (232) wears to establish in proper order on pinch-off blades (233) and fixed plate (234), pinch-off blades (233) and second ball screw (232) threaded connection, fixed plate (234) fixed connection is on mounting panel (225), fixed plate (234) rotate with second ball screw (232) and are connected.

4. A numerical control turret punch press according to claim 3, wherein: and magnetic strips (25) are arranged on the opposite sides of the clamping plate (233) and the fixing plate (234).

5. A numerical control turret punch press according to claim 1, wherein: the direction adjusting assemblies (22) are arranged in two groups in the vertical direction, and the clamping assemblies (23) are arranged in two groups along the length direction of the fixing frame (21).

6. A numerical control turret punch press according to claim 1, wherein: the stamping mechanism (3) comprises a conversion component (31), a pressing component (32) and a punching component (33), the conversion component (31) comprises a portal frame (11) fixedly connected to the workbench (1), a rotating shaft (312) penetrating between the portal frame (11) and the workbench (1), an upper turntable (314) sleeved on the rotating shaft (312), and a lower turntable (315) coaxially arranged with the upper turntable (314), the lower turntable (315) is positioned below the upper turntable (314), one end of the rotating shaft (312) is rotatably connected with the portal frame (11), the other end of the rotating shaft (312) is rotatably connected with the workbench (1), the upper turntable (314) is connected with the rotating shaft (312) in a sliding manner, the lower turntable (315) is fixedly connected with the rotating shaft (312), a second hydraulic rod (313) vertically arranged is arranged on the portal frame (11), the second hydraulic rod (313) is located above the upper rotary table (314), the second hydraulic rod (313) is perpendicular to the upper rotary table (314), one end, close to the upper rotary table (314), of the second hydraulic rod (313) is provided with an electromagnetic block (3131), the electromagnetic block (3131) is magnetically adsorbed to the upper rotary table (314), the pressing component (32) is located between the upper rotary table (314) and the lower rotary table (315), the pressing component (32) and the punching component (33) are radially distributed along the upper rotary table (314), the pressing component (32) and the punching component (33) are located on the same straight line and form a group, and a plurality of groups are uniformly distributed on the upper rotary table (314) along the circumferential direction of the upper rotary table.

7. A numerical control turret punch press according to claim 6, wherein: the pressing assembly (32) comprises a connecting rod (321) fixedly connected to one side, close to the lower turntable (315), of the upper turntable (314) and a pressing plate (322) fixedly connected with the connecting rod (321).

8. A numerical control turret punch press according to claim 7, wherein: and friction increasing layers (34) are arranged on the opposite sides of the pressing plate (322) and the lower rotary disc (315).

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