CN220295638U - Punch press of waste material clearance of being convenient for - Google Patents

Abstract

The utility model discloses a punch press with waste convenient to clean, which comprises a frame and a placing plate, wherein the placing plate and a collecting box are arranged in the frame from top to bottom, the placing plate and the collecting box are fixedly connected, an air cylinder and a cavity fixing block are arranged on the outer wall of one side of the frame from top to bottom, the air cylinder and the cavity fixing block are fixedly connected, a collecting box is arranged at the bottom end of the outer wall of the other side of the frame, the waste convenient to clean punch press is arranged on the bottom end of the outer wall of the other side of the frame, and a workpiece fixing mechanism, a waste cleaning mechanism and an intermittent lubrication mechanism in the punch press with waste convenient to clean are all arranged in a linkage way.

Description

Punch press of waste material clearance of being convenient for

Technical Field

The utility model relates to the technical field of punching machines, in particular to a punching machine with waste convenient to clean.

Background

The punching production mainly aims at plates, the punching machine can make blanking, punching, forming, deep drawing, trimming, fine punching, shaping, riveting, extrusion and the like through a die, and is widely applied to various fields;

but traditional punch press can produce the waste material after die-cut in the work, and this waste material can be messy pile up in the bottom of punch press, and the inside of punching a hole can also be blocked into to partial waste material simultaneously, and then makes the later process of punching a hole influenced, can influence the qualification rate of work piece simultaneously.

Disclosure of Invention

The utility model aims to provide a punch press with waste convenient to clean, so as to solve the problem that the punching waste card in the prior art affects the subsequent workpiece punching.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a punch press that waste material is convenient for clear up, includes the frame and places the board, the inside top-down of frame is installed and is provided with places board and collection box, place and be fixed connection between board and the collection box, the top-down of one side outer wall of frame is installed and is provided with cylinder and cavity fixed block, be fixed connection between cylinder and the cavity fixed block, the other side outer wall bottom installation of frame is provided with the collecting box;

the upper part of the placing plate is provided with a workpiece fixing mechanism, the workpiece fixing mechanism comprises a limiting plate, the upper surface of the placing plate is symmetrically provided with the limiting plate, one side of the placing plate, which is close to the collecting box, is fixedly arranged between the placing plate and the limiting plate, one side of the placing plate, which is far away from the collecting box, is in sliding connection with the placing plate, and the limiting plate is fixedly connected with the output end of the air cylinder;

the waste cleaning mechanism comprises a positioning gear, a limiting shaft and a cam, wherein the positioning gear is arranged in one side of the collecting box far away from the collecting box, one end of the limiting shaft is rotationally connected with the inner wall of the collecting box, and the other end of the limiting shaft penetrates through the positioning gear to be fixedly connected with the cam;

the intermittent lubrication mechanism comprises a sleeve, a piston rod, a limiting spring and a drainage tube, wherein the sleeve and the piston rod are arranged on the outer wall of one side of the frame from top to bottom, the piston rod is in an I shape, the upper end of the piston rod is in sliding connection with the sleeve, the lower end of the piston rod is in sliding connection with the outer wall of the frame, the limiting spring is connected between the outer wall of the bottom end of the sleeve and the bottom end of the piston rod, and the drainage tube is arranged on the outer wall of one side, close to the inside of the top end, of the sleeve in a conducting mode.

Preferably, the waste material cleaning mechanism further comprises an arc-shaped plate, an L-shaped bracket and a first rack, wherein the arc-shaped plate is arranged in the collecting box in a sliding fit manner, one end of the L-shaped bracket is fixedly arranged at the bottom end of the limiting plate at one side far away from the collecting box, the other end of the L-shaped bracket is fixedly arranged with the first rack, and the L-shaped bracket and the first rack penetrate through the outer wall at one side of the collecting box and are in sliding connection with the inner wall of the cavity fixing block;

by adopting the technical scheme, when the whole device is used, the L-shaped bracket can drive the first rack to move simultaneously while moving through the arrangement of the L-shaped bracket, so that the transmission effect is achieved;

preferably, the intermittent lubrication mechanism further comprises a fixing strip, a second rack, a limiting gear, a toothed ring, a collision block, a groove, a rotating column, a limiting block, a spring piece and a driving gear, one side outer wall of a side limiting plate far away from the collecting box is fixedly provided with one end of the fixing strip, the other end of the fixing strip penetrates through one side outer wall of the rack and is fixedly connected with the second rack, the rack is located at the lower end outer wall of the piston rod, the limiting gear and the rotating column are rotatably arranged at the lower end of the piston rod, the toothed ring is arranged at the lower end of the limiting gear in a meshing mode, the driving gear is fixedly arranged at the outer wall of the rotating column, the second rack is in meshing connection with the driving gear, the toothed ring is in rotating connection with the outer wall of the rotating column, the limiting gear is far away from the one side outer wall of the rack, the inner wall of the toothed ring is provided with the groove, the rotating column is internally provided with the fixing limiting block and the spring piece, the fixing limiting block is fixedly connected with the spring piece, and the spring piece is in a clamping connection between the fixing limiting block and the groove.

By adopting the technical scheme, when the whole device is used, the second rack and the driving gear are arranged, and the driving gear is driven to rotate by the movement of the second rack, so that the effect of simultaneous transmission is achieved;

preferably, the upper end cover plate of the collecting box is of an arc-shaped structure;

by adopting the technical scheme, when the integral type garbage collection box is used, waste materials can be blocked by the arc-shaped cover plate when pushed into the collection box through the arrangement of the arc-shaped structure, and then fall into the collection box accurately, so that the blocking effect is achieved;

preferably, the bottom ends of the abutting blocks and the piston rod are both in arc structures;

by adopting the technical scheme, when the whole device is used, the contact between the contact block and the piston rod can achieve the transmission effect through the arrangement of the contact block and the piston rod;

preferably, the output end of the drainage tube is aligned with the upper end of a main shaft sleeve of the machine body which is required to be lubricated by the punch;

by adopting the technical scheme, when the novel drainage device is used, the lubricating oil can be transmitted to the position of the punch, which is required to be lubricated, through the drainage tube, so that the drainage effect is achieved.

Compared with the prior art, the utility model has the beneficial effects that: the workpiece fixing mechanism, the scrap cleaning mechanism and the intermittent lubrication mechanism in the punch press with the scrap convenient to clean are in linkage arrangement, and the limiting plate in the workpiece fixing mechanism can drive the L-shaped support in the scrap cleaning mechanism to move while moving, and meanwhile, the fixing strip in the intermittent lubrication mechanism is driven to move.

1. When the punch press convenient to clean up waste materials is used, through the arrangement of the air cylinder and the limiting plates, a workpiece can be automatically clamped between the two limiting plates when the air cylinder is started, and meanwhile, the limiting plate on one side can automatically drive the positioning gear to rotate when moving, so that the cam is driven to intermittently knock the bottom end of the arc plate, further, the waste materials on the arc plate can be automatically stored into the collecting box in a vibrating way, the condition that the waste materials remain in the machine when the machine stops being used is avoided, the structure is simple, meanwhile, the stamping waste materials can be automatically stored and tidied, the time for manually tidying the waste materials is saved, and meanwhile, the clean and tidy condition in a factory is maintained;

2. when the punch press convenient for cleaning the waste is used, the piston rod is in sliding arrangement in the sleeve through the abutting block and the piston rod, lubricating oil is stored in the sleeve in advance, when the piston rod moves upwards, the lubricating oil in the sleeve can automatically lubricate the joint of the main shaft sleeve of the machine body through the drainage tube, due to the fact that the one-way valve tube externally connected with the lubricating oil is arranged outside the sleeve, when the piston rod moves downwards in a resetting mode, the one-way valve can be automatically opened to suck the externally connected lubricating oil into the sleeve, due to the fact that the one-way valve opposite to the one-way valve is arranged on the drainage tube, the lubricating oil in the drainage tube cannot be pumped back when the piston rod moves downwards, and further the joint of the main shaft sleeve of the machine body can be automatically lubricated through the pumping process, so that the occurrence of machine clamping phenomenon is reduced, and the punching process can be smoother;

3. this punch press of clearance of being convenient for of waste material is when using, through the setting of spacing gear and ring gear, owing to there is the size difference between spacing gear and the ring gear, the ring gear rotates several rings just can make the conflict piece on the spacing gear conflict to the piston rod, and then just can lubricate the junction of fuselage main shaft cover to this design makes this lubrication mechanism can intermittent type nature lubricate the junction of fuselage main shaft cover, and then has reached intermittent type nature lubricated effect.

Drawings

FIG. 1 is a schematic diagram of the overall front perspective structure of the present utility model;

FIG. 2 is a schematic diagram of the overall rear perspective structure of the present utility model;

FIG. 3 is a schematic perspective view of a waste cleaning mechanism according to the present utility model;

FIG. 4 is a schematic perspective view of an intermittent lubrication mechanism according to the present utility model;

FIG. 5 is a schematic perspective view of the tooth ring and rotating post installation of the present utility model;

FIG. 6 is a schematic view showing a side view of a gear ring and a rotary column according to the present utility model

Fig. 7 is a schematic view of the sleeve and piston rod mounting structure of the present utility model.

In the figure: 1. a frame; 2. placing a plate; 3. a collection box; 4. a cylinder; 5. a cavity fixing block; 6. a collection box; 7. a limiting plate; 8. an arc-shaped plate; 9. positioning gears; 10. a limiting shaft; 11. a cam; 12. an L-shaped bracket; 13. a first rack; 14. a fixing strip; 15. a second rack; 16. a limit gear; 17. a toothed ring; 18. a collision block; 19. a groove; 20. rotating the column; 21. a limiting block; 22. a spring piece; 23. a sleeve; 24. a piston rod; 25. a limit spring; 26. a drainage tube 27 and a driving gear.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-7, the present utility model provides a technical solution: this punch press of clearance of being convenient for of waste material has the effect to the work piece is fixed, and its concrete operation is:

the inside of the frame 1 is provided with a placing plate 2 and a collecting box 3 from top to bottom, the placing plate 2 and the collecting box 3 are fixedly connected, the outer wall of one side of the frame 1 is provided with a cylinder 4 and a cavity fixing block 5 from top to bottom, the cylinder 4 and the cavity fixing block 5 are fixedly connected, and the bottom end of the outer wall of the other side of the frame 1 is provided with a collecting box 6;

the workpiece fixing mechanism is arranged above the placing plate 2 and comprises a limiting plate 7, the limiting plate 7 is symmetrically arranged on the upper surface of the placing plate 2, one side of the limiting plate 7 close to the collecting box 6 is fixedly arranged between the placing plate 2, one side of the limiting plate 7 far away from the collecting box 6 is in sliding connection with the placing plate 2, and the limiting plate 7 is fixedly connected with the output end of the air cylinder 4;

when a punch is required to be started to punch a workpiece, the workpiece is firstly required to be placed on the surfaces of the placement plates 2 in the frame 1, then the air cylinder 4 is started, the output end of the air cylinder 4 is outwards ejected, meanwhile, the one side limiting plate 7 is pushed to move towards the other side limiting plate 7, and the workpiece on the surfaces of the placement plates 2 is automatically clamped between the surfaces of the two placement plates 2 along with the continuous approach of the one side limiting plate 7 to the other side limiting plate 7, so that the fixing of the workpiece is completed;

this punch press of clearance of being convenient for of waste material has the function to die-cut waste material automatic collection storage when fixed the work piece, and its concrete operation is:

the inside of the collecting box 3 is provided with a waste material cleaning mechanism, the waste material cleaning mechanism comprises a positioning gear 9, a limiting shaft 10 and a cam 11, the positioning gear 9 is arranged in the inside of one side of the collecting box 3 far away from the collecting box 6, one end of the limiting shaft 10 is rotationally connected with the inner wall of the collecting box 3, and the other end of the limiting shaft 10 penetrates through the positioning gear 9 and is fixedly connected with the cam 11;

the waste material cleaning mechanism further comprises an arc-shaped plate 8, an L-shaped support 12 and a first rack 13, wherein the arc-shaped plate 8 is arranged in the collecting box 3 in a sliding fit manner, one end of the L-shaped support 12 is fixedly arranged at the bottom end of the limiting plate 7 on one side far away from the collecting box 6, the other end of the L-shaped support 12 is fixedly arranged with the first rack 13, and the L-shaped support 12 and the first rack 13 penetrate through the outer wall of one side of the collecting box 3 and are in sliding connection with the inner wall of the cavity fixing block 5

The upper end cover plate of the collecting box 6 is arranged into an arc structure;

when the punching machine is started to punch a hole on a workpiece, the punched waste automatically falls onto the upper surface of the arc plate 8, the limiting plate 7 in the workpiece fixing mechanism simultaneously drives the L-shaped support 12 to move in the same direction when moving, the L-shaped support 12 further drives the first rack 13 to move, the positioning gear 9 is driven to rotate when the first rack 13 moves, the positioning gear 9 further rotates to simultaneously drive the limiting shaft 10 to rotate, the cam 11 is driven to rotate when the limiting shaft 10 rotates, when the lug part of the cam 11 rotates to be attached to the lower end of the arc plate 8, the abutting force of the cam 11 pushes up the arc plate 8 to move upwards for a distance, the connecting spring of the arc plate 8 and the collecting box 3 is further stretched, when the cam 11 continues to rotate to lose the abutting force of the arc plate 8, the connecting spring of the arc plate 8 and the collecting box 3 automatically resets with the arc plate 8, the cam 11 rotates to and the abutting process to and the arc plate 8 always belongs to an intermittent vibration state, and the waste falling onto the surface of the arc plate 8 can be completely shaken by the inner part of the punching box 6, and the waste collecting process is completed.

The punch press that this waste material was convenient for clear up has the function of carrying out intermittent lubrication to punch press fuselage main shaft cover junction when fixed to the work piece, and its concrete operation is:

an intermittent lubrication mechanism is arranged on one side of the frame 1 and comprises a sleeve 23, a piston rod 24, a limit spring 25 and a drainage tube 26, wherein the sleeve 23 and the piston rod 24 are arranged on the outer wall of one side of the frame 1 from top to bottom, the piston rod 24 is I-shaped, the upper end of the piston rod 24 is in sliding connection with the sleeve 23, the lower end of the piston rod 24 is in sliding connection with the outer wall of the frame 1, the limit spring 25 is connected between the outer wall of the bottom end of the sleeve 23 and the bottom end of the piston rod 24, and the drainage tube 26 is arranged on the outer wall of one side, close to the inside of the top end, of the sleeve 23 in a conducting manner;

the intermittent lubrication mechanism further comprises a fixed bar 14, a second rack 15, a limit gear 16, a toothed ring 17, a collision block 18, a groove 19, a rotating column 20, a limit block 21, a spring piece 22 and a driving gear 27, wherein one end of the fixed bar 14 is fixedly arranged on the outer wall of one side of the limit plate 7 far away from the collecting box 6, the other end of the fixed bar 14 penetrates through the outer wall of one side of the rack 1 and is fixedly connected with the second rack 15, the limit gear 16 and the rotating column 20 are rotatably arranged on the outer wall of the lower end of the rack 1, the toothed ring 17 is arranged at the lower end of the limit gear 16 in a meshed mode, the driving gear 27 is fixedly arranged on the outer wall of the rotating column 20, the second rack 15 is in meshed connection with the driving gear 27, the toothed ring 17 is in rotary connection with the outer wall of the rotating column 20, the limit gear 16 is fixedly arranged on the outer wall of one side of the rack 1, the groove 19 is formed in the inner wall of the toothed ring 17, the fixed limit blocks 21 and 22 are fixedly arranged on the inner surface of one side of the rotating column 20, and the fixed limit block 21 and the spring piece 22 are fixedly connected between the fixed limit block 21 and the spring piece 22, and the fixed limit block 21 and the spring piece 19 are fixedly connected between the fixed limit block and the groove 19;

the bottom ends of the abutting blocks 18 and the piston rods 24 are both provided with arc structures;

the output end of the drainage tube 26 is aligned with the upper end of the main shaft sleeve of the machine body which is required to be lubricated by the punch.

When the limiting plate 7 in the workpiece fixing mechanism moves, the fixing strip 14 is simultaneously driven to move in the same direction, the second rack 15 is driven to move when the fixing strip 14 moves, the driving gear 27 is driven to rotate in the same direction when the second rack 15 moves, the driving gear 27 is driven to rotate, the rotating post 20 is driven to rotate, the limiting block 21 is driven to rotate in the reverse circumference in the toothed ring 17 by rotating, the limiting block 21 is clamped into the groove 19 while rotating, the toothed ring 17 is driven to rotate, the limiting gear 16 is driven to rotate while the toothed ring 17 rotates, the abutting block 18 is driven to rotate for a certain distance while the limiting gear 16 rotates, the second rack 15 is automatically driven to move in the same direction when the limiting plate 7 resets, the driving gear 27 is driven to rotate reversely by the second rack 15, when the driving gear 27 rotates reversely, the rotating post 20 is driven to rotate, the rotating post 20 rotates to drive the limiting block 21 to do forward circular motion in the toothed ring 17, the clamping relationship between the limiting block 21 and the groove 19 is lost, the spring piece 22 drives the limiting block 21 to do forward rotating reset motion in the groove 19, at the moment, the limiting block 21 and the toothed ring 17 do not have clamping relationship, so the toothed ring 17 is not driven to rotate, the second rack 15 intermittently rotates along with the toothed ring 17 in the back and forth motion process, the size difference exists between the limiting gear 16 and the toothed ring 17, the abutting block 18 on the limiting gear 16 is abutted against the piston rod 24 due to the fact that the toothed ring 17 rotates for a plurality of circles, when the abutting block 18 abuts against the piston rod 24, the piston rod 24 moves upwards and simultaneously drives the limiting spring 25 to shrink, and meanwhile the piston rod 24 does upward sliding track motion in the sleeve 23, and extrude the lubricating oil in the sleeve 23 through drainage tube 26, when the conflict piece 18 rotates and does not contradict to piston rod 24, spacing spring 25 does not receive the extrusion force and carries piston rod 24 to reset downwards, and then can do decurrent sliding track motion in sleeve 23's inside when piston rod 24 moves downwards, and then sleeve 23 external lubricating oil pipe can automatic supply the suction to sleeve 23's inside with lubricating oil, and then the lubrication oil supply of being convenient for next time, because all install the check valve on drainage tube 26 and the external lubricating oil pipe, and then lubricating oil can not backward flow, so far just accomplished the indirect lubrication to fuselage main shaft cover.

Working principle: when the punch press convenient for cleaning the waste is used, a workpiece is firstly required to be placed on the surface of the placing plate 2, then the air cylinder 4 is started, the output end of the air cylinder 4 automatically clamps the workpiece between the two limiting plates 7 so as to achieve the fixing effect, the L-shaped support 12 and the first rack 13 are driven to move in the same direction while the limiting plates 7 on one side move, the positioning gear 9 is driven to rotate while the first rack 13 moves, the cam 11 is driven to rotate while the positioning gear 9 rotates, and knocking vibration motion is continuously carried out on the lower surface of the arc plate 8, so that the workpiece punching waste attached to the arc plate 8 is vibrated into the collecting box 6; meanwhile, the limiting plate 7 on one side simultaneously drives the fixing strip 14 to move while moving, the fixing strip 14 further drives the second rack 15 to move, and further drives the limiting gear 16 and the toothed ring 17 to rotate, because of the size difference between the limiting gear 16 and the toothed ring 17, when the toothed ring 17 rotates for a few circles to enable the abutting block 18 on the limiting gear 16 to abut against the piston rod 24, the piston rod 24 moves upwards to automatically lead out lubricating oil in the sleeve 23 through the drainage tube 26, and further lubrication is carried out on a main body main shaft sleeve of the punch press, when the abutting block 18 does not abut against the piston rod 24, the limiting spring 25 can reset along with the piston rod 24, and meanwhile, the lubricating oil externally connected with the sleeve 23 is sucked into the sleeve 23 for next lubrication, so that the whole intermittent lubrication process is completed. The whole practicability is increased, standard parts used by the utility model can be purchased from the market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of all parts adopt conventional means such as mature bolts, rivets and welding in the prior art, the machinery, the parts and the equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection modes in the prior art, so that details which are not described in detail in the specification belong to the prior art known to the person skilled in the art.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a punch press of clearance of being convenient for of waste material, includes frame (1) and places board (2), its characterized in that: the device is characterized in that a placing plate (2) and a collecting box (3) are arranged in the rack (1) from top to bottom, the placing plate (2) and the collecting box (3) are fixedly connected, an air cylinder (4) and a cavity fixing block (5) are arranged on the outer wall of one side of the rack (1) from top to bottom, the air cylinder (4) and the cavity fixing block (5) are fixedly connected, and a collecting box (6) is arranged at the bottom end of the outer wall of the other side of the rack (1);

the upper part of the placing plate (2) is provided with a workpiece fixing mechanism, the workpiece fixing mechanism comprises a limiting plate (7), the upper surface of the placing plate (2) is symmetrically provided with the limiting plate (7), one side of the limiting plate (7) close to the collecting box (6) is fixedly arranged between the placing plate (2), one side of the limiting plate (7) far away from the collecting box (6) is in sliding connection with the placing plate (2), and the limiting plate (7) is fixedly connected with the output end of the air cylinder (4);

the waste cleaning mechanism comprises a positioning gear (9), a limiting shaft (10) and a cam (11), wherein the positioning gear (9) is arranged in one side of the collecting box (3) far away from the collecting box (6), one end of the limiting shaft (10) is rotatably connected with the inner wall of the collecting box (3), and the other end of the limiting shaft (10) penetrates through the positioning gear (9) and is fixedly connected with the cam (11);

one side of frame (1) is provided with intermittent lubrication mechanism, intermittent lubrication mechanism includes sleeve (23), piston rod (24), spacing spring (25) and drainage tube (26), one side outer wall top-down of frame (1) installs and is provided with sleeve (23) and piston rod (24), piston rod (24) set up to the I-shape, be sliding connection between the upper end of piston rod (24) and sleeve (23), the lower extreme of piston rod (24) and the outer wall sliding connection of frame (1), be connected between the bottom outer wall of sleeve (23) and the piston rod (24) bottom and be provided with spacing spring (25), one side outer wall in sleeve (23) being close to the top switches on and sets up and installs drainage tube (26).

2. The scrap convenient cleaning punch press of claim 1, wherein: the waste material clearance mechanism still includes arc (8), L shape support (12) and first rack (13), the inside slip laminating of collecting box (3) is provided with arc (8), keeps away from the one side limiting plate (7) of collecting box (6) bottom fixed mounting is provided with the one end of L shape support (12), the other end and the first rack (13) fixed mounting of L shape support (12), one side outer wall and the inner wall sliding connection of cavity fixed block (5) of collecting box (3) are run through to L shape support (12) and first rack (13).

3. The scrap convenient cleaning punch press of claim 1, wherein: the intermittent lubrication mechanism further comprises a fixing strip (14), a second rack (15), a limit gear (16), a toothed ring (17), a collision block (18), a groove (19), a rotating column (20), a limiting block (21), a spring piece (22) and a driving gear (27), one end of the fixing strip (14) is fixedly arranged on the outer wall of one side of the limit plate (7) far away from the collecting box (6), the other end of the fixing strip (14) penetrates through the outer wall of one side of the rack (1) and is fixedly connected with the second rack (15), the rack (1) is arranged at the outer wall of the lower end of the piston rod (24) in a rotating mode, the limit gear (16) and the rotating column (20) are arranged in a rotating mode, the toothed ring (17) is arranged at the lower end of the limit gear (16) in a meshed mode, the driving gear (27) is fixedly arranged on the outer wall of the rotating column (20), the second rack (15) is connected with the driving gear (27) in a meshed mode, the toothed ring (17) is connected with the outer wall of the rotating column (20) in a rotating mode, one side of the outer wall of the limit gear (16) far away from the rack (1) is fixedly arranged on the toothed ring (18), the toothed ring (17) is arranged in the groove (19) is arranged on the inner wall (17), one side surface of the rotating column (20) is provided with a fixed limiting block (21) and a spring piece (22) from outside to inside, the fixed limiting block (21) and the spring piece (22) are fixedly connected, and the fixed limiting block (21) is in clamping connection with the groove (19).

4. A scrap cleaning facilitating punch press as set forth in claim 3, wherein: the upper end cover plate of the collecting box (6) is of an arc-shaped structure.

5. A scrap cleaning facilitating punch press as set forth in claim 3, wherein: the bottom ends of the abutting blocks (18) and the piston rods (24) are both in arc-shaped structures.

6. The scrap convenient cleaning punch press of claim 1, wherein: the output end of the drainage tube (26) is aligned with the upper end of the main shaft sleeve of the machine body which is required to be lubricated by the punch.