CN113182412B

CN113182412B - Two-way stamping device

Info

Publication number: CN113182412B
Application number: CN202110732961.1A
Authority: CN
Inventors: 梅碧舟; 孙静燕; 魏贤达; 卢立全; 张刚强; 孙明杰; 杨飞; 杨贤辉; 刘晓欢; 郑炜嘉
Original assignee: Zhejiang Yiduan Precision Machinery Co ltd
Current assignee: Suzhou Lilai Auto Parts Co ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2021-09-21
Anticipated expiration: 2041-06-30
Also published as: CN113182412A

Abstract

The application discloses a bidirectional stamping device, which comprises a rack, and a motor and a driving shaft which are arranged on the rack, wherein the motor is used for driving the driving shaft to rotate, the driving shaft is rotationally connected to the upper part of the rack, a first crankshaft section and a second crankshaft section are arranged on the driving shaft, and the included angle between the axes of the first crankshaft section and the second crankshaft and the axis of the driving shaft along the radial connecting line is 180 degrees; the lower part of frame is provided with the punching press district, and the last lower extreme in punching press district is fixed mounting respectively has last punching press platform and lower punching press platform, all is connected with the punching press subassembly on first bent axle section and the second bent axle section to make the punching press subassembly under the drive of drive shaft, respectively with last punching press platform and lower punching press platform carry out the punching press. The beneficial effect of this application: the first crankshaft section and the second crankshaft section respectively drive the stamping assembly to stamp along opposite strokes, so that formed load impact is balanced; simultaneously, the driving shaft drives the stamping assembly to carry out bidirectional stamping, and large-batch and multi-type synchronous production can be met.

Description

Two-way stamping device

Technical Field

The application relates to the field of stamping, in particular to a bidirectional stamping device.

Background

Stamping devices are commonly used in the field of stamping processes, such as the stamping production of certain parts of automobiles. The existing stamping device mainly utilizes a crank-slider mechanism, namely, a die on a slider is driven to reciprocate up and down through the rotation of a crank so as to realize the stamping of raw materials. But current stamping device is when using, and the in-process that the mould carries out the punching press to the raw materials on the slider, the raw materials can produce the counter-force to the slider to lead to the bent axle to continuously receive one-way circulation load impact at rotatory in-process, and the impact can pass through the belt and transmit to the motor, and then make the motor produce great vibration, still can reduce the life of belt simultaneously, this all can make stamping device have great potential safety hazard.

Meanwhile, the existing stamping devices are basically in one-way stamping, so that enterprises often need to adopt a plurality of stamping devices when carrying out various types and multi-batch production, and thus, the production cost is increased and a larger production space needs to be provided.

Therefore, there is an urgent need for a press apparatus that can realize various types and mass production and can also realize production safety.

Disclosure of Invention

An object of this application is to provide a two-way stamping device, can also satisfy the synchronous production of different types and many batches of raw materials when improving stamping device operation stationarity.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: a bidirectional stamping device comprises a rack, a motor and a driving shaft, wherein the motor is fixedly arranged on the rack and is suitable for driving the driving shaft to rotate, the driving shaft is rotatably connected to the upper part of the rack, a first crankshaft section and a second crankshaft section are arranged on the driving shaft, the axes of the first crankshaft section and the second crankshaft section are positioned on two sides of the axis of the driving shaft in parallel, and an included angle between the axes of the first crankshaft section and the second crankshaft section and the axis of the driving shaft along the radial direction is 180 degrees; the first crankshaft section and the second crankshaft section are both connected with a stamping assembly, the stamping assembly comprises a connecting plate and a sliding block, the upper end of the connecting plate is rotatably connected with the first crankshaft section or the second crankshaft section, the lower end of the connecting plate is rotatably connected with the sliding block, and the sliding block is slidably mounted in a stamping area at the lower part of the rack; the upper end and the lower end of the punching area are respectively and fixedly provided with an upper punching table and a lower punching table, the upper punching table and the lower punching table are used for installing a female die and placing raw materials, and the upper end and the lower end of the sliding block are both provided with male dies; the sliding block is suitable for being matched with the female dies on the upper punching table and the lower punching table through the male dies at two ends respectively under the driving of the driving shaft so as to punch raw materials, the strokes of the sliding block connected with the first crankshaft section and the second crankshaft section are opposite, the circulating swing in the operation process of the driving shaft is reduced, meanwhile, the bidirectional punching of the punching assemblies can meet the production requirements of multiple batches and multiple types, and the production efficiency is improved.

Preferably, the male dies are detachably arranged at two ends of the sliding block; blanking ports are arranged on the upper punching table and the lower punching table, a plurality of die grooves with uniform intervals are arranged at the lower end of the blanking port on the upper punching table, a plurality of die grooves with uniform intervals are also arranged at the upper end of the blanking port on the lower punching table, and the female die is detachably arranged in each die groove; through the die groove, the female die can be kept stable in the stamping process, and meanwhile, the lug and the female die can be detachably mounted to meet different production requirements.

Preferably, a material returning mechanism is arranged above the upper stamping table, through holes are formed in two sides of the rack, and the material returning mechanism is connected with the driving shaft through a belt, so that a workpiece stamped and formed on the upper stamping table is returned by the material returning mechanism along the through holes; the blanking plate is arranged below the lower stamping platform, the blanking port is arranged below the rack, and the blanking plate is obliquely arranged, so that a workpiece stamped and formed on the lower stamping platform slides to the blanking port along the blanking plate to be discharged.

Preferably, the material returning mechanism comprises a magnetic roller, a material returning roller, a bidirectional screw rod and a material returning plate, the magnetic roller is fixedly arranged above the upper stamping table through a support rod, the material returning roller is sleeved outside the magnetic roller and is rotationally connected with two ends of the support rod, the material returning plate is fixedly arranged on one side of the material returning roller away from the upper stamping table, two ends of the material returning plate are respectively communicated with the through holes arranged on two sides of the rack, the bidirectional screw rod is rotationally arranged above the material returning roller, a material returning slide block is arranged on the bidirectional screw rod, and the bidirectional screw rod is suitable for driving the material returning slide block to reciprocate along the interior of the material returning plate; the end part of the material returning roller is connected with the end part of the bidirectional screw rod through a belt, and meanwhile, the end part of the material returning roller is also connected with the end part of the driving shaft through a belt, so that the rotation of the driving shaft can drive the material returning roller and the bidirectional screw rod to rotate, and then a workpiece adsorbed on the material returning roller is returned through the material returning slide block; it can be understood that the workpiece on the upper stamping table is adsorbed on the surface of the material returning roller by the magnetic roller, rotates to the inside of the material returning plate along with the material returning roller, and then is pushed to the through hole positions on two sides of the rack along the inside of the material returning plate to be returned under the reciprocating movement of the material returning slide block.

Preferably, the material returned board includes the arc and fixes the first baffle and the second baffle of arc both sides, first baffle is the L type, one side of first baffle with the axial parallel and level of bracing piece, the another side of first baffle is kept away from magnetism roller and vertical upwards, the arc with be provided with the opening on the first baffle, the open-ended both sides with the both ends parallel and level of material returned roller, simultaneously the upper surface of arc with the surface parallel and level of material returned roller, and then the arc and first baffle with the inner chamber that the second baffle encloses with the through-hole aligns, still be provided with the spout on the second baffle, the material returned slider passes the spout is followed the inner chamber slides.

Preferably, the magnetic roller is semi-cylindrical, one end of the magnetic roller is close to the upper stamping table, and the other end of the magnetic roller is located at the lower part of the opening, so that when a workpiece enters the inner cavity of the stripper plate along with the stripper roller, the magnetic force of the workpiece adsorbed by the magnetic roller is reduced, and the workpiece is more conveniently stripped.

Preferably, the two sides of the frame are also provided with material returning boxes, the material returning boxes cover the through holes, the lower side walls of the material returning boxes are provided with material returning ports, the material returning ports are positioned under the through holes, the two sides of the material returning ports positioned in the material returning boxes are fixedly provided with check blocks, and one side of each check block close to each material returning port forms an inclined plane with an upward opening so that a workpiece can be downwardly returned from the through holes along the material returning ports; therefore, the workpiece can be prevented from splashing when being returned, and the safety of workpiece returning is ensured.

Preferably, four corners of the punching area are respectively fixed with a guide post, the sliding blocks located at two sides of the punching area are in sliding fit with the guide posts through guide holes arranged at the side parts, a guide rod and the guide holes are respectively arranged between adjacent side parts on the adjacent sliding blocks, the guide rods are in sliding fit with the guide holes, and the sliding blocks are in sliding fit with sliding holes arranged on the lower punching table through the guide rods, so that the sliding blocks can stably move along the axial directions of the guide posts and the sliding holes under the driving of the driving shaft; thereby ensuring the stability of the stamping of the sliding block.

Preferably, the lower punching press platform's below fixed mounting has the dead lever, the torsional spring is installed at the both ends of dead lever, the flitch passes through the torsional spring with the rotation of dead lever slope is connected, torsional spring one end with the lateral wall of flitch down is connected, the other end of torsional spring with the dead lever is connected, the flitch down wherein one end can with the guide bar contact cooperation, so that the slider is at the in-process of punching press, through the guide bar is in order to drive the flitch down winds the dead lever carries out the circulation swing, thereby prevents the work piece that punching press formed on the lower punching press platform is in produce on the flitch down and piles up.

Preferably, the lower punching table and the upper punching table are located on two sides of the die groove and are provided with feeding baffle plates, the feeding baffle plates are L-shaped, and the feeding baffle plates are in sliding fit with two sides of the raw material, so that the stability of the raw material can be ensured in the feeding and punching processes.

Compared with the prior art, the beneficial effect of this application lies in:

(1) the driving shaft is provided with a first crankshaft section and a second crankshaft section, and the first crankshaft section and the second crankshaft section are radially arranged at 180 degrees along the axis of the driving shaft, so that in the rotating process of the driving shaft, the strokes of the sliding blocks connected with the first crankshaft section and the sliding blocks connected with the second crankshaft section are just opposite, namely the directions of the impact pressure on the first crankshaft section and the second crankshaft section are opposite, and therefore in the rotating process of the driving shaft, the load impact on the first crankshaft section and the second crankshaft section is offset, and the running stability of the driving shaft and the whole stamping device is further ensured.

(2) In a traditional punching device, in order to reduce the vibration of a driving shaft, a balancing weight which has a stroke opposite to that of a punching assembly is often required to be installed on the driving shaft, so that the impact load generated when the punching assembly is matched with a raw material in a punching way is offset by the gravity of the balancing weight; and this application is at the punching press in-process of punching press subassembly, and the impact load that forms opposite direction to the punching press subassembly through last punching press platform and lower punching press bench material comes the mutual equilibrium to when reducing the drive shaft vibration, can also realize stamping device's lightweight.

(3) Meanwhile, the upper end and the lower end of the punching area are respectively provided with the upper punching table and the lower punching table, so that the male dies at the two ends of the sliding block can be sequentially matched with the female dies on the upper punching table and the lower punching table in a punching manner in the process of rotating the driving shaft for one circle, and therefore bidirectional punching is formed, the requirements of large-batch punching production are met, and the requirements on production space are reduced; meanwhile, the detachable installation of the female die and the male die can meet the requirement of synchronous operation of different types of stamping production.

Drawings

Fig. 1 is a schematic view of the overall appearance structure of the present invention.

Fig. 2 is a schematic view of the internal overall structure of the rack of the present invention.

FIG. 3 is an enlarged view of the portion A of FIG. 2 according to the present invention.

FIG. 4 is a side view of the internal structure of the rack of the present invention.

FIG. 5 is a schematic view of the cooperation of the magnetic roller and the stripper plate in the material stripping mechanism of the present invention.

Fig. 6 and 7 are schematic structural views of the present invention in the front-rear direction with the frame removed.

Fig. 8 is a schematic view of the construction of the drive shaft of the present invention.

Fig. 9 is an axial cross-sectional view of the drive shaft of the present application.

Fig. 10 is a sectional view in the front view direction in the pressed state of the present invention.

Fig. 11 is an enlarged view of the portion B of fig. 10 according to the present invention.

Fig. 12 is an enlarged view of the invention at the location of part C in fig. 10.

FIG. 13 is a side cross-sectional view of the present invention.

In the figure: the stamping device comprises a frame 1, a stamping area 100, a lower stamping platform 11, a blanking port 110, a feeding baffle plate 111, an upper stamping platform 12, a die groove 120, a material returning box 13, a through hole 130, a material returning port 131, a stop block 132, a guide post 14, a fixing rod 15, a blanking port 150, a motor 2, a stamping assembly 3, a connecting plate 31, a sliding block 32, a male die 33, a female die 34, a guide hole 320, a guide rod 321, a driving shaft 4, a first crankshaft section 411, a second crankshaft section 412, a flywheel 42, a belt pulley 400, a belt 5, a material returning mechanism 6, a magnetic roller 61, a supporting rod 601, a material returning plate 62, an opening 620, an arc-shaped plate 621, a first baffle plate 622, a second baffle plate 623, a sliding groove 624, a bidirectional screw rod 63, a material returning roller 64, a material returning sliding block 65, a blanking plate 7 and a torsion spring 8.

Detailed Description

The present application is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment.

In the description of the present application, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be construed as limiting the specific scope of protection of the present application.

It is noted that the terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

Embodiments as shown in fig. 1, 2, 6, 8 to 11, a bidirectional punching apparatus includes a frame 1, a motor 2, a driving shaft 4, and a plurality of punching assemblies 3, wherein the motor 2 is fixedly mounted on the frame 1 by bolts, and the motor 2 can be mounted on the top of the frame 1 in order to facilitate the motor 2 to drive the driving shaft 4 to rotate. The driving shaft 4 is rotatably connected to the upper portion of the frame 1, the flywheel 42 is installed at one end of the driving shaft 4, and a V-shaped groove is formed in the flywheel 42, so that the flywheel 42 is connected with the belt pulley 400 installed at the output end of the motor 2 through the V-shaped groove by the belt 5, and it can be understood that the motor 2 drives the flywheel 42 to rotate, and then drives the stamping assembly 3 connected with the driving shaft 4 to work through the rotational inertia of the flywheel 42.

Meanwhile, the driving shaft 4 is provided with a first crank shaft section 411 and a second crank shaft section 412, wherein at least one section is arranged on each of the first crank shaft section 411 and the second crank shaft section 412; preferably, the number of the first crank shaft segments 411 and the second crank shaft segments 412 is equal or different by one, it will be appreciated that the number of first crankshaft segments 411 is N, the number of second crankshaft segments 412 is either N +1(N ≧ 1) or N-1(N ≧ 2), for example, as shown in fig. 8 and 9, the driving shaft 4 is provided with a first crank shaft section 411 and a second crank shaft section 412, and the first crank shaft section 411 and the second crank shaft section 412 are distributed in parallel on both axial sides of the driving shaft 4, so that the first and second

crank shaft segments

411, 412 are at an angle of 180 deg. to the line of the axis of the drive shaft 4, it will be appreciated that, in the axial direction, when the driving shaft 4 is rotated, both the first crank shaft section 411 and the second crank shaft section 412 can be rotated in the axial direction of the driving shaft 4 to form a driving circle, and a line connecting the axes of the first and

second crankshaft sections

411 and 412 is the diameter of the drive circle. Meanwhile, each first crankshaft section 411 and each second crankshaft section 412 are connected with a stamping assembly 3, the stamping assembly 3 specifically comprises a connecting plate 31 and a sliding block 32, the sliding block 32 is slidably mounted in the stamping area 100 at the lower part of the rack 1, the upper end of the connecting plate 31 is rotatably connected with the first crankshaft section 411 or the second crankshaft section 412, and the lower end of the connecting plate 31 is rotatably connected with the sliding block 32, it can be understood that a crank-sliding block mechanism is formed among the connecting plate 31, the driving shaft 4 and the sliding block 32, so that the sliding block 32 is driven by the driving shaft 4 to reciprocate up and down in the stamping area 100 through the connecting plate 31. The upper end and the lower end of the punching area 100 are respectively fixedly provided with an upper punching table 12 and a lower punching table 11, the upper punching table 12 and the lower punching table 11 are used for installing a female die 34 and placing raw materials for punching, and the raw materials are generally thin iron plates; meanwhile, the upper end and the lower end of the sliding block 32 are both provided with the male dies 33, so that when the driving shaft 4 drives the sliding block 32 to reciprocate along the punching area 100, the male dies 33 at the two ends of the sliding block 32 are respectively matched with the female dies 34 on the upper punching table 12 and the lower punching table 11 to form the punching processing of the raw material, and it can be understood that once the driving shaft 4 rotates for one circle, the male dies 33 at the upper end of the sliding block 32 and the upper punching table 12 as well as the male dies 33 at the lower end and the lower punching table 11 can be respectively subjected to one-time punching processing, so that the punching assembly 3 can perform two-way punching in one-time punching period; and the strokes of the sliders 32 respectively connected with the first crank shaft segment 411 and the second crank shaft segment 412 are always opposite during the punching process, i.e. when the slider 32 connected with the first crank shaft segment 411 performs downward punching, the slider 32 connected with the second crank shaft segment 412 performs upward punching.

It can be understood that, through the sliders 32 with opposite strokes, the stamping assembly forces applied to the first crankshaft section 411 and the second crankshaft section 412 of the plurality of stamping assemblies 3 are always opposite in the stamping process, and therefore, during the rotation of the driving shaft 4, the load impacts generated on the first crankshaft section 411 and the second crankshaft section 412 can be partially offset with each other, so that the cyclic swing during the operation of the driving shaft 4 is reduced, so as to improve the operation stability of the driving shaft 4 and even the whole bidirectional stamping device, and compared with the counterweight structure of the conventional stamping device, the transmission structure of the bidirectional stamping device of the present application has lighter weight; meanwhile, the bidirectional stamping of the plurality of stamping assemblies 3 can meet the production requirements of multiple batches and multiple types, so that the production efficiency is improved.

Specifically, as shown in fig. 2 and 10, the male dies 33 are detachably mounted at two ends of the sliding block 32 through bolts, and the upper punching table 12 and the lower punching table 11 are both provided with blanking ports 110, so as to conveniently blank the punched workpiece; wherein, the lower end of the upper punching platform 12 at the blanking opening 110 is provided with die slots 120 corresponding to the number and the position of the punching assemblies 3 along the axial direction of the driving shaft 4, the upper end of the lower punching platform 11 at the blanking opening 110 is also provided with corresponding die slots 120, and the die 34 is detachably arranged in the die slots 120 through bolts. It will be understood that the shape of each pair of cooperating female 34 and male 33 dies may be different to meet the requirements of different stamping types; meanwhile, the die 34 can be kept stable during the punching process through the die slot 120.

Meanwhile, in order to place the raw material to deviate in the stamping process, the feeding baffle 111 can be installed on both sides of the lower stamping table 11 and the upper stamping table 12 which are located on the die slot 120, and the feeding baffle 111 is set to be L-shaped, so that the feeding baffle 111 is in sliding fit with both sides of the raw material through the vertical edges, and meanwhile, the feeding baffle 111 supports the raw material through the transverse edges, so that the stability of the raw material can be ensured in the feeding and stamping processes. It will be appreciated that the feeding of the raw material may be achieved by existing feeding means.

As shown in fig. 13, the blanking on the lower stamping table 11 is a conventional blanking method, a blanking plate 7 may be obliquely arranged below the lower stamping table 11, and a blanking opening 150 is opened at the front end of the frame 1 below the lower stamping table 11, so that the workpiece stamped and formed on the lower stamping table 11 slides along the blanking plate 7 to the blanking opening 150 under the action of gravity to be ejected.

Since the workpiece on the upper stamping table 12 is formed by stamping the slide block 32 upwards, the material cannot be returned in the blanking mode as on the lower stamping table 11, so that the material returning mechanism 6 which is convenient for material returning needs to be designed on the upper stamping table 12.

As shown in fig. 2, 3, 4, 7 and 13, the material returning mechanism 6 is located above the upper punching table 12 and near the rear side of the frame 1, and the material returning mechanism 6 is transversely arranged as a whole; the material returning mechanism 6 specifically comprises a magnetic roller 61, a material returning roller 64, a bidirectional screw 63 and a material returning plate 62, wherein the magnetic roller 61 is fixedly connected with the rack 1 through a support rod 601, the material returning roller 64 is sleeved outside the magnetic roller 61 and is rotationally connected with two ends of the support rod 601, the material returning plate 62 is positioned on one side of the material returning roller 64 away from the upper stamping table 12, and the material returning plate 62 is fixedly connected with two sides of the rack 1 through two ends, so that two ends of the material returning plate 62 are respectively communicated with through holes 130 arranged on two sides of the rack 1, the bidirectional screw 63 is rotationally installed right above the material returning roller 64, a material returning slide block 65 is installed on the bidirectional screw 63, and the material returning slide block 65 can reciprocate along the inside of the material returning plate 62 under the driving of the bidirectional screw 63. The belt pulley 400 is installed on the end portion of one side of the material returning roller 64 and the bidirectional screw rod 63, the belt pulley 400 is connected with the belt 5, the belt pulley 400 is installed on the end portion, far away from the flywheel 42, of the driving shaft 4, the belt pulley between the driving shaft 4 and the material returning roller 64 is connected with the belt 5, the driving shaft 4 can drive the material returning roller 64 and the bidirectional screw rod 63 to rotate, the material returning roller 64 rotates the adsorbed workpiece to the interior of the material returning plate 62, and then the workpiece is pushed to the through holes 130 on the two sides of the material returning plate 62 through the material returning slide block 65 to be returned. It will be appreciated that the magnetic roller 61 is magnetic so that after the material is punched from the upper punching station 12, the formed workpiece is immediately attracted to the surface of the stripper roller 64 by the magnetic roller 61 and then rotates with the stripper roller 64 into the stripper plate 62.

Specifically, as shown in fig. 5 and 7, the stripper plate 62 specifically includes an arc-shaped plate 621, and a first baffle 622 and a second baffle 623 that fix both sides of the arc-shaped plate 621, wherein the first baffle 622 is L-shaped, the lower edge of the first baffle 622 is flush with the axial direction of the support rod 601, the first baffle 622 is connected with the lower end of the arc-shaped plate 621 through one end of the lower edge, the lower edge is connected with the vertical edge of the first baffle 622, and the vertical edge of the first baffle 622 is far away from the magnetic roller 61 and faces vertically upwards. The arc plate 621 and the first baffle 622 are provided with an opening 620, the two lateral sides of the opening 620 are flush with the two ends of the material returning roller 64, meanwhile, the upper surface of the arc plate 621 is flush with the outer surface of the material returning roller 64, so that the inner cavity surrounded by the arc plate 621 and the first and

second baffles

622 and 623 is aligned with the through hole 130, the second baffle 623 is connected with the upper end of the arc plate 621 and is provided with a sliding groove 624, and the material returning slide block 65 passes through the sliding groove 624 and slides along the inner cavity. It can be understood that the work pieces sucked on the stripper roller 64 rotate with the stripper roller 64 and enter the cavity of the stripper plate 62 through the opening 620 and are stopped by the second stop 623 at the upper end of the stripper plate 62, so that the sucked work pieces are all retained in the cavity of the stripper plate 62 and are then subjected to stripping along the through-holes 130 under the pushing of the stripper slide 65.

In the material returning process of the material returning mechanism 6, since the magnetic force of the magnetic roller 61 is too strong, the workpieces are likely to be accumulated at the port position of the through hole 130, as shown in fig. 4 and 5, the magnetic roller 61 is configured to be semi-cylindrical, one end of the magnetic roller 61 is close to the upper stamping table 12, and the other end of the magnetic roller 61 is located at the lower part of the opening 620, so that when the workpieces enter the inner cavity of the material returning plate 62 along with the material returning roller 64, the magnetic force of the magnetic roller 61 for adsorbing the workpieces is reduced, and the workpieces are more convenient to be returned.

When a workpiece is returned from the through hole 130, splashing is easily caused, and safety accidents are easily caused, so as shown in fig. 1 to 3, the material returning boxes 13 are installed on both sides of the frame 1, the through hole 130 is covered by the material returning boxes 13, the lower side wall of the material returning boxes 13 is provided with the material returning ports 131, the material returning ports 131 are located right below the through hole 130, the two sides of the material returning ports 131 located inside the material returning boxes 13 are fixed with the stoppers 132, and one side of the stoppers 132 close to the material returning ports 131 is provided with an inclined surface with an upward opening, so that the workpiece is returned downwards from the through hole 130 along the material returning ports 131; therefore, the workpiece can be prevented from splashing when being returned, and the safety of workpiece returning is ensured.

Specifically, as shown in fig. 2, 6 and 10, guide posts 14 are respectively fixed at four corners of the punching area 100, so that the sliders 32 located at two sides of the punching area 100 are slidably fitted with the guide posts 14 through guide holes 320 formed at the sides, meanwhile, a guide rod 321 and a guide hole 320 are respectively arranged between adjacent sides of adjacent sliders 32, and the guide rod 321 and the guide hole 320 are slidably fitted with each other, and the sliders 32 are also slidably fitted with slide holes formed in the lower punching table 11 through the guide rods 321, so that the sliders 32 can be driven by the driving shaft 4 to move smoothly along the axial directions of the guide posts 14 and the slide holes, thereby ensuring the stable punching of the sliders 32.

In the process of blanking the blanking plate 7, since the design size of the entire apparatus is compact, the inclination angle of the blanking plate 7 is often designed to be small, so that when blanking a workpiece on the lower punch table 11, the workpiece is likely to be piled up, and therefore, in order to prevent the workpiece from piling up, as shown in fig. 12 and 13. The fixing rod 15 is fixedly installed below the lower stamping platform 11, the torsion springs 8 are installed at two ends of the fixing rod 15, the lower stamping plate 7 is connected with the fixing rod 15 in an inclined mode through the torsion springs 8, one ends of the torsion springs 8 are connected with the side wall of the lower stamping plate 7, the other ends of the torsion springs 8 are connected with the fixing rod 15, one ends of the lower stamping plate 7 can be in contact fit with the guide rods 321, and therefore in the stamping process of the sliding block 32, the lower stamping plate 7 is driven to circularly swing in a small angle around the fixing rod 15 through axial reciprocating movement of the guide rods 321 and elastic force of the torsion springs 8, and workpieces stacked on the lower stamping plate 7 are shaken down to the blanking port 150 to be blanked.

The foregoing has described the general principles, essential features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are merely illustrative of the principles of the application, but that various changes and modifications may be made without departing from the spirit and scope of the application, and these changes and modifications are intended to be within the scope of the application as claimed. The scope of protection claimed by this application is defined by the following claims and their equivalents.

Claims

1. The utility model provides a two-way stamping device, includes frame, motor and drive shaft, its characterized in that: the motor is fixedly arranged on the rack, the motor is suitable for driving the driving shaft to rotate, the driving shaft is rotatably connected to the upper portion of the rack, a first crankshaft section and a second crankshaft section are arranged on the driving shaft, the axes of the first crankshaft section and the second crankshaft section are positioned on two sides of the axis of the driving shaft in parallel, and an included angle between the axes of the first crankshaft section and the second crankshaft and the axis of the driving shaft along a radial connecting line is 180 degrees; the first crankshaft section and the second crankshaft section are both connected with a stamping assembly, the stamping assembly comprises a connecting plate and a sliding block, the upper end of the connecting plate is rotatably connected with the first crankshaft section or the second crankshaft section, the lower end of the connecting plate is rotatably connected with the sliding block, and the sliding block is slidably mounted in a stamping area at the lower part of the rack; the upper end and the lower end of the punching area are respectively and fixedly provided with an upper punching table and a lower punching table, the upper punching table and the lower punching table are used for installing a female die and placing raw materials, and the upper end and the lower end of the sliding block are both provided with male dies; the sliding block is suitable for being driven by the driving shaft to be matched with the female dies on the upper punching table and the lower punching table through the male dies at two ends respectively so as to punch the raw materials, so that the strokes of the sliding block connected with the first crankshaft section and the second crankshaft section are opposite;

a material returning mechanism is arranged above the upper stamping table, through holes are formed in two sides of the rack, and the material returning mechanism is connected with the driving shaft through a belt, so that a workpiece formed by stamping on the upper stamping table is returned by the material returning mechanism along the through holes; meanwhile, a blanking plate is arranged below the lower stamping platform, a blanking port is arranged below the rack, and the blanking plate is obliquely arranged so that a workpiece stamped and formed on the lower stamping platform slides to the blanking port along the blanking plate to be returned;

the material returning mechanism comprises a magnetic roller, a material returning roller, a bidirectional screw rod and a material returning plate, the magnetic roller is fixedly arranged above the upper stamping table through a support rod, the material returning roller is sleeved outside the magnetic roller and is rotationally connected with two ends of the support rod, the material returning plate is fixedly arranged on one side of the material returning roller away from the upper stamping table, two ends of the material returning plate are respectively communicated with the through holes arranged on two sides of the rack, the bidirectional screw rod is rotationally arranged above the material returning roller, a material returning slide block is arranged on the bidirectional screw rod, and the bidirectional screw rod is suitable for driving the material returning slide block to reciprocate along the interior of the material returning plate; the end part of the material returning roller is connected with the end part of the bidirectional screw rod through a belt, and meanwhile, the end part of the material returning roller is connected with the end part of the driving shaft through the belt, so that the driving shaft can drive the material returning roller to rotate with the bidirectional screw rod, and then the material returning slider is adsorbed on a workpiece on the material returning roller to return materials.

2. The bi-directional stamping apparatus of claim 1, wherein: the male dies are detachably arranged at two ends of the sliding block; the upper punching table and the lower punching table are both provided with blanking ports, the upper punching table is located, the lower end of each blanking port is provided with a plurality of die grooves with uniform intervals, the lower punching table is located, the upper end of each blanking port is also provided with a plurality of die grooves with uniform intervals, and the die grooves are detachably provided with the female dies.

3. The bi-directional stamping apparatus of claim 1, wherein: the stripper plate includes the arc and fixes the first baffle and the second baffle of arc both sides, first baffle is the L type, one side of first baffle with the axial parallel and level of bracing piece, the another side of first baffle is kept away from magnetism roller and vertical upwards, the arc with be provided with the opening on the first baffle, the open-ended both sides with the both ends parallel and level of material returned roller, simultaneously the upper surface of arc with the surface parallel and level of material returned roller, and then the arc and first baffle with the inner chamber that the second baffle encloses with the through-hole aligns, still be provided with the spout on the second baffle, the material returned slider passes the spout is followed the inner chamber slides.

4. The bi-directional stamping apparatus of claim 3, wherein: the magnetic roller is semi-cylindrical, one end of the magnetic roller is close to the upper stamping table, and the other end of the magnetic roller is located at the lower part of the opening.

5. The bi-directional stamping apparatus of any of claims 1-4, wherein: the utility model discloses a work piece, including frame, through-hole, material returning mouth, dog, work piece, through-hole, material returning mouth and through-hole, material returning mouth will the through-hole cladding is still installed to the both sides of frame, and the lower lateral wall of material returning mouth is provided with material returning mouth, material returning mouth is located under the through-hole, material returning mouth is located the inside both sides of material returning mouth are fixed with the dog, the dog is close to one side of material returning mouth is provided with the ascending inclined plane of opening, so that the work piece is followed through-hole department edge material returning mouth carries out material returning downwards.

6. The bi-directional stamping apparatus of claim 1, wherein: four corners of the stamping area are respectively fixed with a guide column; the sliding blocks located on two sides of the punching area are in sliding fit with the guide columns through guide holes formed in the side portions, adjacent side portions between the adjacent sliding blocks are respectively provided with a guide rod and a guide hole, the guide rods are in sliding fit with the guide holes, the lower punching table is further provided with a sliding hole, and the guide rods are in sliding fit with the sliding hole.

7. The bi-directional stamping apparatus of claim 6, wherein: a fixed rod is fixedly arranged below the lower stamping platform, torsion springs are arranged at two ends of the fixed rod, the lower plate is connected with the fixed rod in an inclined rotating manner through the torsion springs, one end of each torsion spring is connected with the side wall of the lower plate, and the other end of each torsion spring is connected with the fixed rod; one end of the blanking plate is in contact fit with the guide rod, so that the sliding block drives the blanking plate to circularly swing around the fixed rod through the guide rod in the stamping process.

8. The bi-directional stamping apparatus of claim 2, wherein: and the lower punching table and the upper punching table are positioned on two sides of the die groove and are provided with feeding baffle plates, the feeding baffle plates are L-shaped, and the feeding baffle plates are in sliding fit with two sides of the raw material.