CN210547732U

CN210547732U - Processing device for elastic cylindrical pin

Info

Publication number: CN210547732U
Application number: CN201921604324.0U
Authority: CN
Inventors: 杨通礼; 王磊; 刘慧�
Original assignee: Jiaxing Baines Metal Products Co Ltd
Current assignee: Anhui Pines Metal Products Co ltd
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2020-05-19
Anticipated expiration: 2029-09-25

Abstract

The utility model discloses a processing device of an elastic cylindrical pin, which comprises a frame, a chamfer cutting unit, a bending and forming unit, a forward and backward pushing unit and a leftward and rightward pushing unit, wherein the frame comprises a lower seat body and an upper seat body which is driven by a cylinder to move up and down so as to be close to or far away from the lower seat body, the chamfer cutting unit and the bending and forming unit are respectively arranged between the lower seat body and the upper seat body in a forward and backward manner, the chamfer cutting unit comprises a chamfer pressing die and a cutter which are arranged from left to right, the bending and forming unit comprises a U pressing die and a circular pressing die which are arranged from right to left, the forward and backward pushing unit is positioned at the front side and the rear side of the frame and pushes strip steel processed by the cutter to the U pressing die, the leftward and rightward pushing unit is positioned at the right side of the frame and pushes a finished product elastic cylindrical pin processed by the circular pressing die to a, the full series length resilient cylindrical pins of this specification can be manufactured by one strip width stamping.

Description

Processing device for elastic cylindrical pin

[ technical field ] A method for producing a semiconductor device

The utility model relates to a technical field of elasticity cylindric lock, especially a technical field of processingequipment of elasticity cylindric lock.

[ background of the invention ]

The elastic cylindrical pin is also called spring pin, belongs to standard fastener, is a headless hollow cylindrical body, and is axially slotted, and the end portions of two ends are equipped with chamfers, so that it is mainly used for positioning, connecting and fixing between the components. At present, the processing methods of the elastic cylindrical pin include two methods, one is to pull out the strip steel into the shape of the elastic pin and then directly cut the elastic pin into a finished pin according to the required length, and the other is to manufacture the elastic cylindrical pin by stamping the strip steel. As shown in fig. 1, the conventional strip steel stamping device has a problem that the width of the strip steel determines the length of the finished pin after the strip steel is cut into a certain length along the dotted line after being subjected to edge pressing by a chamfering machine, and then the strip steel is stamped to be bent into a cylindrical shape along the direction F. Because the elastic cylindrical pins with the same diameter can be divided into dozens of specifications due to different lengths, dozens of kinds of strip steel with different widths need to be prepared in factories, and the management difficulty of raw material inventory is increased.

[ Utility model ] content

The utility model aims at solving the problem among the prior art, provide a processingequipment of elasticity cylindric lock, can make the elasticity cylindric lock of the whole series length of this specification through a belted steel width punching press, very big raw and other materials stock article class of having saved.

In order to achieve the purpose, the utility model provides a processing device of an elastic cylindrical pin, which comprises a frame, a chamfer cutting unit, a bending forming unit, a forward and backward pushing unit and a leftward and rightward pushing unit, wherein the frame comprises a lower seat body and an upper seat body driven by a cylinder to move up and down so as to be close to or far away from the lower seat body, the chamfer cutting unit and the bending forming unit are respectively arranged between the lower seat body and the upper seat body in a forward and backward mode, a feed inlet and a discharge outlet of the frame are respectively positioned at the left sides of the chamfer cutting unit and the bending forming unit, the chamfer cutting unit comprises a chamfer pressing die and a cutter which are arranged from left to right, the bending forming unit comprises a U pressing die and a round pressing die which are arranged from right to left, the forward and backward pushing unit is positioned at the front and back sides of the frame and pushes the strip steel after the cutter is processed to the, and the left and right pushing units are positioned on the right side of the rack and push the finished elastic cylindrical pins after the machining of the rounding die to the discharge hole.

Preferably, the lower base body comprises a lower supporting plate, a plurality of lower die feet fixed on the top surface of the lower supporting plate, a lower die frame fixed on the top surface of the lower die feet, a lower backing plate fixed on the top surface of the lower die frame and a lower die plate fixed on the top surface of the lower backing plate, the feed inlet is positioned on the left side of the top surface of the lower die plate and is provided with a feeding guide device, the upper base body comprises an upper die frame, an upper backing plate fixed on the bottom surface of the upper die frame and an upper clamping plate fixed on the bottom surface of the upper backing plate, and the top surface of the upper die frame is.

Preferably, the upper die frame is provided with a plurality of outer guide rods close to the edge, the upper clamp plate is provided with a plurality of inner guide rods close to the edge, and the lower die frame and the lower die plate are provided with outer sockets and inner sockets corresponding to the outer guide rods and the inner guide rods respectively.

Preferably, the chamfering die comprises an upper chamfering die punch and a lower die chamfering insert which are respectively fixed on the bottom surface of the upper base body and the top surface of the lower base body, the cutter comprises an upper blade, a lower blade, a pressing plate and a stop block, the upper blade and the lower blade are respectively fixed on the bottom surface of the upper base body and the top surface of the lower base body, the pressing plate is fixed on the right side of the lower blade, and the stop block can slide left and right along a sliding groove in the pressing plate and is fixed on the pressing plate through a bolt.

Preferably, a clamping plate insert with a plurality of stepped holes is fixed on the right side of the upper blade, a plurality of threaded holes corresponding to the stepped holes are formed in the upper seat body, floating pins penetrate through the upper seat body and the clamping plate insert, each floating pin comprises a stud, a floating spring located at the bottom end of the stud and a pin body located at the bottom end of the floating spring, the stud is screwed into the threaded hole, the floating spring penetrates through the threaded hole and extends into the upper hole body of the stepped hole, the pin body penetrates through the lower hole body of the stepped hole and extends out of the clamping plate insert, and the floating pin is located above the center of the lower blade and the stop block.

Preferably, the forward and backward pushing unit comprises two groups of pushing bodies respectively located on the front side and the back side of the frame, each pushing body comprises a pushing insertion block, a first slide way, a first slide block, a pulley, a first pushing block, a support frame and a return spring, the first slide way is fixed on the top surface of the lower base body, the first slide block is fixed in the first slide way in a sliding manner, a first long slot hole is formed in a side plate of the first slide way, a first rotating shaft penetrating through the first long slot hole is arranged on each of the two sides of the first slide block, the pulley is rotationally fixed on the rotating shaft, the pushing insertion block is fixed on the bottom surface of the upper base body, an inclined plane is cut at the bottom end of the pushing insertion block and is in contact with the pulley in the downward movement process to press the first slide block to move outwards, one end of the return spring is fixed with the outer side of the first slide block, the other end of the return spring, the first push block is fixed on the first sliding block, the first push block of the pushing body located on the front side pushes the strip steel after the cutter machining is finished to an inlet of a material pressing area of the U-shaped die along with the movement of the first sliding block, and the first push block of the pushing body located on the rear side closes or opens the inlet of the material pressing area along with the movement of the first sliding block.

Preferably, the U-shaped die further comprises a limiting block, and the limiting block is located on the rear side of an inlet of a pressing area of the U-shaped die.

Preferably, the U-pressing die comprises a U-shaped punch, a first lower die block and a lower die forming insert, the rounding die comprises a circular punch, a second lower die block and an inner hole shaping core rod, the U-shaped punch and the circular punch are respectively fixed on the bottom surface of the upper base body, the first lower die block and the second lower die block are respectively fixed on the top surface of the lower base body, and the lower die forming insert and the inner hole shaping core rod are respectively fixed on the top surfaces of the first lower die block and the second lower die block.

As preferred, control to the propelling movement unit including orbit inserted block, second slide, second slider, orbit ring sum second ejector pad, be equipped with the orbit groove on the orbit inserted block, the orbit groove is including two sections perpendicular grooves that are located lower left department and upper right department and the chute that two sections perpendicular grooves of intercommunication, the second slide is fixed at pedestal top surface down, the second slider slides and fixes in the second slide, the curb plate of second slide is equipped with the second slotted hole, the both sides of second slider are equipped with the second pivot of wearing out second slotted hole and orbit groove setting successively, the orbit ring rotates to be fixed in the second pivot and can move along the nodical of spout and orbit groove.

The utility model has the advantages that: the utility model discloses a with chamfer cutting unit and bending forming unit respectively around setting up between the lower pedestal and the upper seat body of frame, utilize the pushing down of the upper seat body, make the propelling movement unit of forward and backward and to the propelling movement unit of left and right sides carry out propelling movement forward and backward and control the propelling movement automatically, accomplish the chamfer of machined part, cut, press the U and press the circle four steps go on simultaneously, effectively improve machining efficiency, practice thrift the space; the cut strip steel is wound along the width direction of the strip steel, so that the problem that the width of the strip steel determines the length of a finished pin is effectively solved, the elastic cylindrical pin with the whole series of lengths of the specification can be manufactured by punching according to the width of the strip steel, and raw material inventory is greatly saved.

The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.

[ description of the drawings ]

FIG. 1 is a schematic diagram of a prior art strip stamping apparatus for cutting and bending a strip;

FIG. 2 is a schematic diagram of cutting and bending a strip steel by the device for processing an elastic cylindrical pin of the present invention;

FIG. 3 is a perspective view of the elastic cylindrical pin;

fig. 4 is a front perspective view of the elastic cylindrical pin processing device of the present invention;

fig. 5 is a front view of the device for processing an elastic cylindrical pin according to the present invention;

fig. 6 is a right side view of the device for processing an elastic cylindrical pin according to the present invention;

3 FIG. 3 7 3 is 3 a 3 front 3 sectional 3 view 3 A 3- 3 A 3 of 3 FIG. 3 4 3 in 3 an 3 open 3 state 3; 3

3 FIG. 3 8 3 is 3 a 3 front 3 sectional 3 view 3 A 3- 3 A 3 of 3 FIG. 3 4 3 in 3 a 3 closed 3 state 3; 3

FIG. 9 is a sectional view taken rightwardly from B-B in the open state of FIG. 4;

FIG. 10 is a sectional view taken rightwardly from B-B of FIG. 4 in the closed state;

FIG. 11 is an enlarged schematic view at G of FIG. 10;

FIG. 12 is a C-C section view in elevation of FIG. 4 in the open condition;

FIG. 13 is a C-C section view in elevation of FIG. 4 in a closed condition;

FIG. 14 is a D-D rightward sectional view of FIG. 4 in an open state;

fig. 15 is a D-D rightward sectional view of fig. 4 in a closed state.

In the figure: 100-machine frame, 101-upper die frame, 102-upper cushion plate, 103-upper clamping plate, 104-lower die plate, 105-lower cushion plate, 106-lower die frame, 107-lower die foot, 108-lower supporting plate, 109-outer guide rod, 110-inner guide rod, 111-feeding guide device, 200-chamfer cutting unit, 201-chamfer upper die punch, 202-upper blade, 203-floating pin, 204-clamping plate insert, 205-lower die chamfer insert, 206-lower blade, 207-pressing plate, 208-stopper, 300-bending forming unit, 301-U punch, 302-first lower die block, 303-lower die forming insert, 304-circular punch, 305-second lower die block, 306-inner hole shaping core rod, 400-forward and backward pushing unit, 401-pushing insertion block, 402-first slide way, 403-first slide block, 404-pulley, 405-first pushing block, 406-supporting frame, 407-reset spring, 408-limiting block, 500-left-right pushing unit, 501-track insertion block, 502-second slide way, 503-second slide block, 504-track ring and 505-second pushing block.

[ detailed description ] embodiments

Referring to fig. 1 to 15, the present invention relates to a processing apparatus for an elastic cylindrical pin, including a frame 100, a chamfer cutting unit 200, a bending forming unit 300, a forward and backward pushing unit 400, and a leftward and rightward pushing unit 500, wherein the frame 100 includes a lower base and an upper base driven by an air cylinder to move up and down to be close to or away from the lower base, the chamfer cutting unit 200 and the bending forming unit 300 are respectively disposed between the lower base and the upper base, a feed inlet and a discharge outlet of the frame 100 are respectively located at left sides of the chamfer cutting unit 200 and the bending forming unit 300, the chamfer cutting unit 200 includes a chamfer pressing mold and a cutter disposed from left to right, the bending forming unit 300 includes a U pressing mold and a round pressing mold disposed from right to left, the forward and backward pushing unit 400 is located at front and rear sides of the frame 100 and pushes strip steel after the cutter is processed to the U pressing mold, the left-right pushing unit 500 is located on the right side of the rack 100 and pushes a finished elastic cylindrical pin after a rounding die is machined to a discharge hole, the lower base body comprises a lower supporting plate 108, a plurality of lower die feet 107 fixed to the top surface of the lower supporting plate 108, a lower die frame 106 fixed to the top surface of the lower die feet 107, a lower backing plate 105 fixed to the top surface of the lower die frame 106 and a lower die plate 104 fixed to the top surface of the lower backing plate 105, the feed inlet is located on the left side of the top surface of the lower die plate 104 and provided with a feeding guide device 111, the upper base body comprises an upper die frame 101, an upper backing plate 102 fixed to the bottom surface of the upper die frame 101 and an upper clamping plate 103 fixed to the bottom surface of the upper backing plate 102, the top surface of the upper die frame 101 is connected with a telescopic rod of an air cylinder, a plurality of outer guide rods 109 are arranged on the upper die frame 101 close to the edge, a plurality of inner guide rods 110 are arranged on the upper clamping plate 103 close to the edge The chamfering die comprises a chamfering upper die punch 201 and a lower die chamfering insert 205 which are respectively fixed on the bottom surface of an upper base body and the top surface of a lower base body, the cutter comprises an upper blade 202, a lower blade 206, a pressing plate 207 and a stop block 208, the upper blade 202 and the lower blade 206 are respectively fixed on the bottom surface of the upper base body and the top surface of the lower base body, the pressing plate 207 is fixed on the right side of the lower blade 206, the stop block 208 can slide left and right along a sliding groove in the pressing plate 207 and is fixed on the pressing plate 207 through a bolt, the right side of the upper blade 202 is fixed with a clamping plate 204 with a plurality of stepped holes, a plurality of threaded holes corresponding to the stepped holes are arranged in the upper base body, a floating pin 203 penetrates through the upper base body and the clamping plate insert 204, the floating pin 203 comprises a stud, a floating spring positioned at the bottom end of the stud and a pin body positioned at the bottom end of the floating, the stud is screwed into the threaded hole, the floating spring passes through the threaded hole and extends into an upper hole body of the stepped hole, the pin body passes through a lower hole body of the stepped hole and extends out of the clamping plate insert 204, the floating pin 203 is positioned above the center of the lower blade 206 and the stop block 208, the forward and backward pushing unit 400 comprises two groups of pushing bodies respectively positioned at the front side and the rear side of the rack 100, each pushing body comprises a pushing insert 401, a first slide way 402, a first slide block 403, a pulley 404, a first pushing block 405, a support frame 406 and a return spring 407, the first slide way 402 is fixed on the top surface of the lower base body, the first slide block 403 is fixed in the first slide way 402 in a sliding manner, a first long slot hole is formed in a side plate of the first slide way 402, a first rotating shaft penetrating through the first long slot hole is formed in two sides of the first slide block 403, the pulley 404 is rotationally fixed on the rotating shaft, the pushing insert 401 is fixed, the bottom end of the pushing insert 401 is cut with an inclined plane and contacts with the pulley 404 to press the first slider 403 to move outwards in the downward movement process, one end of the return spring 407 is fixed with the outer side of the first slider 403 while the other end is fixed with the support frame 406, the support frame 406 is fixed on the first slide way 402, the first push block 405 is fixed on the first slider 403, the first push block 405 of the pushing body positioned on the front side pushes the strip steel processed by the cutter to the inlet of the swaging area of the U-pressing die along with the movement of the first slider 403, the first push block 405 of the pushing body positioned on the rear side closes or opens the inlet of the swaging area along with the movement of the first slider 403, the U-pressing die further comprises a limit block 408, the limit block 408 is positioned on the rear side of the inlet of the swaging area of the U-pressing die, the U-pressing die comprises a U-shaped punch 301, a first lower die block 302 and an insert molding 303, the rounding die comprises a circular punch 304, a second lower die block 305 and an inner hole shaping mandrel 306, the U-shaped punch 301 and the circular punch 304 are respectively fixed on the bottom surface of the upper base body, the first lower die block 302 and the second lower die block 305 are respectively fixed on the top surface of the lower base body, the lower die forming insert 303 and the inner hole shaping mandrel 306 are respectively fixed on the top surfaces of the first lower die block 302 and the second lower die block 305, the left-right pushing unit 500 comprises a track insert 501, a second slide way 502, a second slide block 503, a track ring 504 and a second push block 505, the track insert 501 is provided with a track groove, the track groove comprises two vertical grooves at the left lower part and the right upper part and a chute communicated with the two vertical grooves, the second slide way 502 is fixed on the top surface of the lower base body, the second slide block 503 is slidably fixed in the second slide way 502, the side plate of the second slide way 502 is provided with a second long slot hole, two sides of the second sliding block 503 are provided with second rotating shafts which sequentially penetrate through the second slotted hole and the track groove, and the track ring 504 is rotationally fixed on the second rotating shafts and can move along the intersection point of the sliding groove and the track groove.

The utility model discloses the working process:

see fig. 7 and 8. The stopper 208 is first slid left and right along the slide groove in the pressing plate 207 so that the distance between the stopper 208 and the lower blade 206 is the same as the length of the desired product, and then the stopper 208 is fixed to the pressing plate 207 by bolts. In the working process, the feeding machine conveys the strip steel into the chamfer cutting unit 200 after passing through the correcting position of the feeding guide device 111 and abuts against the stop block 208. Then, the air cylinder controls the upper seat body to move downwards, the chamfering upper die punch 201 and the lower die chamfering insert 205 are pressed to press a chamfer on the strip steel, and simultaneously, the strip steel is cut at the chamfer formed by last pressing by the upper blade 202 and the lower blade 206, and a material sheet is obtained. In the process of cutting the strip steel by the upper blade 202 and the lower blade 206, the floating pin 203 simultaneously descends and presses the strip steel, preventing the strip steel from bouncing. Then, the forward and backward pushing unit 400 pushes the material sheet to the U-pressing mold, and the feeding machine continues to push the strip steel. The pushing length of the strip steel is the same as that of the required product every time, and the pushing length is controlled and adjusted by the feeder.

See fig. 6, 9, 10 and 11. For the pushing body located at the front side, the pushing insert block 401 descends along with the upper base body in the descending process, the inclined surface at the bottom end of the insert block 401 is in contact with the pulley 404 to press the first slide block 403 to move outwards to compress the return spring 407, the pushing insert block 401 ascends along with the upper base body in the ascending process, the return spring 407 pushes the first slide block 403 to move inwards to drive the first push block 405 to move inwards, and therefore the material sheet obtained after the strip steel is cut is pushed to the inlet of the lower die forming insert 303. The stopper 408 may stop the material sheet to prevent the material sheet from deviating from a desired position due to inertia during the pushing process of the first pushing block 405. For the pushing body located at the rear side, in the process of descending the upper base body, the first pushing block 405 is far away from the inlet of the lower mold molding insert 303, so that the inlet is in a release state, and in the process of ascending the upper base body, the first pushing block 405 is close to the inlet of the lower mold molding insert 303, so that the inlet is in a closed state, the material sheet is intercepted, and the material sheet is effectively prevented from vertically falling into the lower mold molding insert 303.

See fig. 9, 10 and 11. During the process of descending the upper base body, the U-shaped punch 301 and the lower die forming insert 303 press the material sheet into a U shape under the action of pressure.

See fig. 12 and 13. The track insert 501 descends along with the descending process of the upper base body, and forces the track ring 504 to move from the vertical groove at the lower left position to the vertical groove at the upper right position along the inclined groove, and moves rightwards along the second long groove hole, so as to drive the second push block 505 to move rightwards, otherwise, the track insert 501 ascends along with the ascending process of the upper base body, and forces the track ring 504 to move from the vertical groove at the upper right position to the vertical groove at the lower left position along the inclined groove, and moves leftwards along the second long groove hole, so as to drive the second push block 505 to move leftwards, and push the material piece pressed into a U shape to the rounding die.

See fig. 14 and 15. In the process that the upper base body descends, the round punch 304 and the inner hole shaping core rod 306 press the U-shaped material sheet into a cylinder under the action of pressure, and a finished elastic cylindrical pin is obtained.

See fig. 12. The finished elastic cylindrical pin is gradually pushed leftwards by the elastic cylindrical pin obtained by subsequent processing and finally leaves along the discharge hole.

As shown in figure 2, the strip steel of the utility model is bent into a cylinder shape along the E direction after being cut along the dotted line, the elastic cylindrical pin with the whole series length of the specification can be manufactured by punching with a strip steel width, and the raw material inventory is greatly saved.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.

Claims

1. The utility model provides a processingequipment of elasticity cylindric lock which characterized in that: comprises a frame (100), a chamfer cutting unit (200), a bending forming unit (300), a forward and backward pushing unit (400) and a leftward and rightward pushing unit (500), wherein the frame (100) comprises a lower seat body and an upper seat body driven by an air cylinder to move up and down to be close to or far away from the lower seat body, the chamfer cutting unit (200) and the bending forming unit (300) are respectively arranged between the lower seat body and the upper seat body in the front and back directions, a feed inlet and a discharge outlet of the frame (100) are respectively positioned on the left sides of the chamfer cutting unit (200) and the bending forming unit (300), the chamfer cutting unit (200) comprises a chamfering die and a cutter which are arranged from left to right, the bending forming unit (300) comprises a U pressing die and a round pressing die which are arranged from right to left, the forward and backward pushing unit (400) are positioned on the front side and the back side of the frame (100) and push band steel after the cutter is processed to the U pressing, the left-right pushing unit (500) is positioned on the right side of the rack (100) and pushes the finished elastic cylindrical pin after the machining of the rounding die to the discharge hole.

2. The apparatus for processing a resilient cylindrical pin as recited in claim 1, wherein: the lower base body comprises a lower supporting plate (108), a plurality of lower die feet (107) fixed on the top surface of the lower supporting plate (108), a lower die frame (106) fixed on the top surface of the lower die feet (107), a lower base plate (105) fixed on the top surface of the lower die frame (106) and a lower die plate (104) fixed on the top surface of the lower base plate (105), the feed inlet is positioned on the left side of the top surface of the lower die plate (104) and is provided with a feeding guide device (111), the upper base body comprises an upper die frame (101), an upper base plate (102) fixed on the bottom surface of the upper die frame (101) and an upper clamping plate (103) fixed on the bottom surface of the upper base plate (102), and the top surface of the upper die frame (.

3. A device for processing a resilient cylindrical pin as claimed in claim 2, wherein: go up die carrier (101) and be equipped with a plurality of outer guide bars (109) near the edge, punch holder (103) are close to the edge and are equipped with a plurality of interior guide bars (110), be equipped with respectively on lower die carrier (106) and lower bolster (104) with outer guide bar (109) and interior guide bar (110) corresponding outer socket and interior socket.

4. The apparatus for processing a resilient cylindrical pin as recited in claim 1, wherein: the chamfering die comprises an upper chamfering die punch (201) and a lower die chamfering insert (205) which are fixed on the bottom surface of an upper base body and the top surface of a lower base body respectively, the cutter comprises an upper blade (202), a lower blade (206), a pressing plate (207) and a stop block (208), the upper blade (202) and the lower blade (206) are fixed on the bottom surface of the upper base body and the top surface of the lower base body respectively, the pressing plate (207) is fixed on the right side of the lower blade (206), and the stop block (208) can slide left and right along a sliding groove in the pressing plate (207) and is fixed on the pressing plate (207) through a bolt.

5. The apparatus for processing an elastic cylindrical pin according to claim 4, wherein: the right side of going up blade (202) is fixed with splint insert (204) that have a plurality of shoulder hole, be equipped with the corresponding screw hole in position of a plurality of and shoulder hole in the upper base body, wear to be equipped with floating pin (203) in upper base body and splint insert (204), floating pin (203) include the double-screw bolt, be located the floating spring of double-screw bolt bottom and be located the round pin body of floating spring bottom, the double-screw bolt screw in shoulder hole, floating spring passes the screw hole and stretches into in the upper bore body of shoulder hole, the round pin body passes the lower bore body of shoulder hole and stretches out splint insert (204) setting, floating pin (203) are located the central top of lower blade (206) and dog (208).

6. The apparatus for processing a resilient cylindrical pin as recited in claim 1, wherein: the front and rear pushing units (400) comprise two groups of pushing bodies which are respectively positioned on the front side and the rear side of the rack (100), each pushing body comprises a pushing insert block (401), a first slide way (402), a first sliding block (403), a pulley (404), a first pushing block (405), a support frame (406) and a reset spring (407), the first slide way (402) is fixed on the top surface of the lower base body, the first sliding block (403) is fixed in the first slide way (402) in a sliding manner, a side plate of the first slide way (402) is provided with a first long slotted hole, two sides of the first sliding block (403) are provided with first rotating shafts penetrating through the first long slotted hole, the pulley (404) is rotationally fixed on the rotating shafts, the pushing insert block (401) is fixed on the bottom surface of the upper base body, the bottom end of the pushing insert block (401) is cut with an inclined plane and is contacted with the pulley (404) in the downward movement process to press the first sliding block (403) to move outwards, one end of the return spring (407) is fixed with the outer side of the first sliding block (403) while the other end is fixed with the support frame (406), the support frame (406) is fixed on the first sliding way (402), the first push block (405) is fixed on the first sliding block (403), the first push block (405) of the push body positioned on the front side pushes the strip steel after the cutter processing to an inlet of a material pressing area of the U-shaped die along with the movement of the first sliding block (403), and the first push block (405) of the push body positioned on the rear side closes or opens the inlet of the material pressing area along with the movement of the first sliding block (403).

7. The apparatus for processing a resilient cylindrical pin as recited in claim 1, wherein: the U-shaped die further comprises a limiting block (408), and the limiting block (408) is located on the rear side of an inlet of a material pressing area of the U-shaped die.

8. The apparatus for processing a resilient cylindrical pin as recited in claim 1, wherein: the U-pressing die comprises a U-shaped punch (301), a first lower die block (302) and a lower die forming insert (303), the rounding die comprises a circular punch (304), a second lower die block (305) and an inner hole forming core rod (306), the U-shaped punch (301) and the circular punch (304) are respectively fixed on the bottom surface of an upper base body, the first lower die block (302) and the second lower die block (305) are respectively fixed on the top surface of the lower base body, and the lower die forming insert (303) and the inner hole forming core rod (306) are respectively fixed on the top surfaces of the first lower die block (302) and the second lower die block (305).

9. The apparatus for processing a resilient cylindrical pin as recited in claim 1, wherein: left and right side propelling movement unit (500) are including orbit inserted block (501), second slide (502), second slider (503), orbit ring (504) and second ejector pad (505), be equipped with the orbit groove on orbit inserted block (501), the orbit groove is including two sections vertical slots that are located left lower department and upper right department and two sections chute that erect the groove of intercommunication, second slide (502) are fixed at lower pedestal top surface, second slider (503) slide and fix in second slide (502), the curb plate of second slide (502) is equipped with the long slotted hole of second, the both sides of second slider (503) are equipped with the second pivot of successively wearing out the setting of long slotted hole of second and orbit groove, orbit ring (504) rotate to be fixed in the second pivot and can move along the nodical of spout and orbit groove.