Surface punching die

Abstract

The utility model relates to a surface punching die which comprises an upper die base and a lower die plate which correspond to each other up and down, an upper padding plate fixedly connected with the upper die base is arranged at the bottom of the upper die base, an upper fixing plate fixedly connected with the upper padding plate is arranged at the bottom of the upper padding plate, and a material pressing plate capable of moving up and down is arranged at the bottom of the upper fixing plate. A punch in up-down sliding fit with the pressing plate is arranged in the pressing plate, a tool bit of the punch is vertically downward, and the top of the tool bit is fixedly connected with the upper fixing plate. A lower die fixedly connected with the lower die plate is arranged at the top of the lower die plate, and the top face of the lower die is vertically matched with the bottom face structure of the material pressing plate. And an anti-jumping sleeve corresponding to the punch in position up and down is arranged in the lower die. According to the surface punching die, the matching precision of the upper die and the lower die is high, the machining quality of products is guaranteed, the phenomenon of material jumping is avoided, the continuity of punching machining is guaranteed, the production machining efficiency and the machining quality are improved, and the use cost of the die is reduced through the integrated forming machining mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to a punching die, especially a surface punching die. BACKGROUND

[0002] In the field of stamping processing, the punching die is a commonly used stamping processing die, which is used for the stamping processing of a hole part.

[0003] The punching die mainly uses a punch, which is fixed on an upper die. When the die is closed, the upper die drives the punch downward to punch the part placed on the lower die.

[0004] However, the punch of the existing punching die protrudes below the bottom of the upper die. The product is first processed into a semi-finished product, and then the semi-finished part is placed on the lower die of the punching die. Then, the punch is driven downward by the upper die to punch the part. This cannot achieve synchronous processing of shaping and punching, which affects the processing efficiency. A corresponding shaping die and punching die are required, and the die has a high use cost. In addition, the conventional punching die requires a punch with a small diameter when processing a part with a small hole diameter. However, the existing punching die has an exposed punch, and the punch rod cannot be well protected and is prone to breakage. In addition, the punch of the existing punching die is prone to bringing out waste after punching, and manual cleaning is required before the next part can be punched, which is time-consuming. Currently, some punching dies have a waste hole on the lower die to facilitate the falling of punching waste. However, the hole diameter is consistent from top to bottom, and the waste is still prone to jumping, which is not conducive to continuous punching processing. SUMMARY

[0005] The utility model solves the technical problem of providing a surface punching die that can achieve synchronous shaping and punching of parts and facilitate the falling of waste without jumping.

[0006] To solve the above technical problems, the utility model is implemented by the following technical scheme:

[0007] A surface punching die includes an upper die seat and a lower die plate corresponding to each other, the bottom of the upper die seat is provided with an upper backing plate fixedly connected thereto, the bottom of the upper backing plate is provided with an upper fixed plate fixedly connected thereto, the bottom of the upper fixed plate is provided with a pressure plate capable of moving up and down, the pressure plate is provided with a punch that slides up and down, the cutting head of the punch is vertically downward, and the top of the cutting head is fixedly connected with the upper fixed plate; the top of the lower die plate is provided with a lower die fixedly connected thereto, the top surface of the lower die is in structural conformity with the bottom surface of the pressure plate; the lower die is provided with an anti-jumping sleeve corresponding to the position of the punch.

[0008] Preferably, the upper die seat is provided with an equal height bolt movably connected thereto, the threaded end of the equal height bolt is fixedly connected with the pressing plate through the upper backing plate and the upper fixed plate; the equal height bolt is externally sleeved with a spring matched with the gap of the equal height bolt, the upper and lower ends of the spring are respectively in abutment with the bottom surface of the upper backing plate and the top surface of the pressing plate.

[0009] Preferably, the top center of the anti-jumping sleeve is provided with an anti-jumping hole, and the bottom center is provided with a linking hole, the anti-jumping hole and the linking hole are in communication, the anti-jumping hole is a tapered hole, the caliber of the top of the anti-jumping hole is matched with the outer diameter of the punch, the punch can be inserted into the tapered hole downward, and the diameter of the bottom of the anti-jumping hole is smaller than the diameter of the linking hole.

[0010] Preferably, the bottom of the upper fixed plate is provided with an inner guide column, the pressing plate is provided with a guide hole corresponding to the inner guide column in a vertical direction, the upper end of the guide hole is provided with an inner guide sleeve matched with the inner guide column, and the inner guide column and the inner guide sleeve are in sliding fit in a vertical direction.

[0011] Preferably, the upper fixed plate is fixedly connected with the upper fixed plate through the clamp cutter head.

[0012] Preferably, the center of the lower die and the lower die plate is provided with a blanking hole in communication in a vertical direction, the top of the blanking hole is vertically corresponding to the bottom of the punch, and the anti-jumping sleeve is embedded in the upper end of the blanking hole.

[0013] Preferably, the bottom of the lower die plate is provided with a lower supporting plate fixedly connected thereto, the lower supporting plate and the lower die plate are fixedly connected through the pad blocks, and the heights have a spacing; the top surface of the lower supporting plate is provided with a waste box with an opening upward, and the top opening of the waste box is vertically corresponding to the blanking hole.

[0014] Compared with the prior art, the surface punching die has the advantages that the punch is movably matched in the pressing plate, the parts on the lower die can be synchronously punched during the downward punching and shaping of the upper die, the cooperation precision of the upper die and the lower die is high, the processing quality of the product is guaranteed, the punching waste in the anti-jumping sleeve is not easily taken out by the punch through the special structure of the anti-jumping sleeve, the phenomenon of material jumping is avoided, the continuity of the punching process is guaranteed, the production and processing efficiency and the processing quality are improved, and the integrated forming processing mode also reduces the use cost of the die. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope, for those skilled in the art, without creative labor, other related drawings can also be obtained according to these drawings.

[0016] Figure 1 is a surface punching die three-dimensional structure schematic diagram of the present application;

[0017] Figure 2 is a surface punching die top view structure schematic diagram of the present application;

[0018] Figure 3 is Figure 2 structure sectional view of A-A in the middle;

[0019] Figure 4 is Figure 2 structure sectional view of B-B in the middle;

[0020] Figure 5 is a surface punching die in the present application, the punch and the anti jump sleeve cooperation state schematic diagram.

[0021] In the figure: 1, the upper die holder; 2, the lower supporting plate; 21, the pad block; 22, the waste box; 3, the lower die plate; 4, the pressing plate; 5, the lower die; 51, the blanking hole; 52, the anti jump sleeve; 521, the anti jump hole; 522, the connecting hole; 6, the upper pad plate; 7, the upper fixed plate; 71, the inner guide column; 72, the inner guide sleeve; 73, the clamping tool bit; 74, the punch; 8, the equal height bolt; 9, the spring. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application, and the technical scheme in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the application provided in the drawings is not intended to limit the scope of the application claimed, but merely represents selected embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the application. It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In the description of the embodiments of the application, it should be explained that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship of the product of the application when it is usually placed, which is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the application. In addition, the terms "first", "second" and the like are only used for differentiation, and cannot be understood as indicating or implying relative importance.

[0024] In addition, if the terms "horizontal", "vertical" and the like appear, it does not mean that the component must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure or component must be completely horizontal, but can be slightly inclined.

[0025] In the description of the embodiments of the application, "a plurality of" represents at least 2.

[0026] In the description of the embodiments of the application, it should be further explained that, unless otherwise explicitly specified and limited, if the terms "set", "install", "connect", "connect" appear, they should be understood in a broad sense, for example, they can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the communication between two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0027] Embodiments

[0028] Please refer to the drawings in the description Figures 1 to 4 in the description Figures 1 to 4The utility model discloses a surface punching die, be applicable to the synchronous processing of stamping and shaping and punching, improve processing efficiency, it includes upper die seat 1 and lower die plate 3 of corresponding, upper die seat 1 is fixedly installed on the upper backing plate of press machine through bolt, it can with the upper backing plate of press machine synchronous activity up and down, the bottom below lower die plate 3 is provided with the lower batten 2 of fixed connection with it, lower batten 2 is fixedly connected on the lower backing plate of press machine through bolt, lower batten 2 and lower die plate 3 are fixedly connected together through the backing up block 21 between, through bolt fixed connection between, the height has the interval, according to the demand can dismantle replacement, and the backing up block, the backing up block 21 has at least two pieces, symmetrically sets up in the bottom both sides of lower batten 21, guarantees the balance of lower die plate 3, in order to guarantee the safety when closing die, the bottom of upper die seat 1 is provided with upper limit post, the top of lower die plate 3 is provided with the lower limit post of with upper limit post corresponding, upper limit post and lower limit post can be upper and lower butt joint, limit the position when the upper die and lower die close die, and, in order to guarantee the position accuracy when closing die, the bottom of upper die seat 1 is provided with the outer guide sleeve of fixed connection with it, the central hole of outer guide sleeve is upwards and penetrates the top of upper die seat 1, the central hole of outer guide sleeve is provided with the outer guide column of with its upper and lower sliding fit, the bottom of outer guide column is fixed in the top of lower die plate 3, guarantees the accuracy of height position when the upper die and lower die close die.

[0029] Refer to the attached drawings of the specification Figure 3 And 4As shown, the bottom of the upper die holder 1 is provided with an upper pad plate 6 fixedly connected thereto, and the bottom of the upper pad plate 6 is provided with an upper fixed plate 7 fixedly connected thereto, which are fixedly connected to the bottom of the upper die holder 1 through bolts, convenient to disassemble and assemble; the bottom of the upper fixed plate 7 is provided with a press plate 4 capable of moving up and down, in order to facilitate the press plate 4 to move up and down below the bottom of the fixed plate 7 and to move up and down synchronously with the upper die holder 1, the upper pad plate 6 and the upper fixed plate 7, the upper die holder 1 is provided with an equal-height bolt 8 movably connected thereto, in order to facilitate the installation and movement of the equal-height bolt 8, an equal-height hole is provided in the upper die holder 1, the equal-height hole is a stepped hole, the diameter of the upper end is larger than that of the lower end, the equal-height bolt 8 is downwardly provided in the equal-height hole, and the threaded end of the equal-height bolt 8 downwardly penetrates the upper pad plate 6 and the upper fixed plate 7 and is fixedly connected with the press plate 4, it should be noted that the upper pad plate 6 is provided with a connecting hole in clearance fit with the equal-height bolt 8, in order to make the press plate 4 have a certain pre-pressing degree on the to-be-stamped part located at the bottom thereof when the mold is closed, the to-be-stamped part can be pre-pressed, the equal-height bolt 8 is externally sleeved with a spring 9 in clearance fit therewith, the upper and lower ends of the spring 9 respectively abut against the bottom surface of the upper pad plate 6 and the top surface of the press plate 4, it should be noted that the top of the spring 9 is fixedly connected with the bottom of the upper pad plate 6, the fixed plate 7 is provided with a spring hole for facilitating the spring 9 to pass therethrough, the spring 9 is in clearance fit with the spring hole and does not interfere with the expansion and contraction of the spring 9, the equal-height bolt 8 has a plurality of equal-height bolts, which are uniformly distributed on the upper die holder 1, and each equal-height bolt 8 is externally provided with a spring 9, the spring 9 has a downward pushing force on the press plate 4; in order to ensure the accuracy of the up-and-down movement position of the press plate 4 and prevent horizontal deviation, the height direction is consistent during up-and-down movement, the bottom of the upper fixed plate 7 is provided with an inner guide column 71, the press plate 4 is provided with a guide hole corresponding to the inner guide column 71 in up-and-down direction, the upper end of the guide hole is provided with an inner guide sleeve 72 in sleeved fit with the inner guide column 71, the inner guide column 71 and the inner guide sleeve 72 are in up-and-down sliding fit, the inner guide column 71 is inserted into the inner guide sleeve 72, which can ensure the stability of the press plate 4 during up-and-down movement; in order to punch the part during forming processing, the press plate 4 is provided with a punch 74 in up-and-down sliding fit therewith, in order to facilitate the installation of the punch 74, the press plate 4 is provided with a punch connection hole in up-and-down communication, the punch 74 is sleeved in the punch connection hole and is in up-and-down sliding fit with the punch connection hole, in the mold opening state, the lower end of the punch 74 does not protrude below the bottom of the punch connection hole, and the punch 74 can be better protected through the punch connection hole, effectively avoiding the breakage of the punch 73 during punching and prolonging the service life; the tool bit of the punch 74 vertically downwardly, and the top thereof is fixedly connected with the upper fixed plate 7;In order to facilitate the installation of the punch 74, the upper fixed plate 7 is fixedly connected with the upper fixed plate 7 through the clamping cutter head 73, the clamping cutter head 73 is embedded in the center of the upper fixed plate 7 through the bolt fixedly embedded in the center of the upper fixed plate 7, the center of the clamping cutter head is provided with a stepped hole communicated with the upper and lower, the upper end of the punch 74 is in the "T" shape structure, the upper section is matched with the stepped hole, and the height position of the punch 6 is limited by the upper pad plate 6; The top of the lower die plate 3 is provided with a lower die 5 fixedly connected therewith, the top surface of the lower die 5 is matched with the bottom surface of the pressure plate 4 in structure; In order to avoid that the waste is taken out by the punch 74, affecting the normal processing, the lower die 5 is provided with an anti-jumping sleeve 52 corresponding to the position of the punch 74 in upper and lower; Referring to the description of the drawings; Figure 5 As shown in the description, the top center of the anti-jumping sleeve 52 is provided with an anti-jumping hole 521, the bottom center is provided with an adapter hole 522, the anti-jumping hole 521 is communicated with the adapter hole 522 in upper and lower, the anti-jumping hole 521 is a tapered hole, the caliber of the top is matched with the outer diameter of the punch 74, the punch 74 can be inserted into the tapered hole downward, the structure of the tapered hole can make the waste falling from the top opening not easy to be taken out by the punch 74 again, and the waste is easy to limit and avoid the phenomenon of jumping, the diameter of the bottom of the anti-jumping hole 521 is less than the diameter of the adapter hole 522; In order to facilitate the blanking and the installation of the anti-jumping sleeve 52 on the lower die 5, the center of the lower die 5 and the lower die plate 3 is provided with a blanking hole 51 communicated with the upper and lower, the anti-jumping sleeve 52 is embedded in the upper end of the blanking hole 51, the top of the blanking hole 51 is communicated with the adapter hole 522 in upper and lower, the blanking hole 51 is matched with the bottom of the punch 74 in upper and lower, the waste is collected after stamping, the top surface of the lower supporting plate 2 is provided with a waste box 22 with an opening upward, the top opening of the waste box 22 is matched with the blanking hole 51 in upper and lower.

[0030] In the process of processing, the parts to be processed are placed in the cavity at the top of the lower die 5, the press is started, the upper die holder 1, the upper pad plate 6, the upper fixed plate 7 and the pressure plate 4 are driven downward synchronously, the bottom of the pressure plate 4 first contacts the surface of the parts and is in contact with the parts under the action of the spring 9 to keep the horizontal position of the parts stable, at the same time, the upper die holder 1, the upper pad plate 6 and the upper fixed plate 7 continue to go down, after the bottom of the upper fixed plate 7 contacts the top of the pressure plate 4, it pushes the pressure plate 4 downward to shape the parts, in the process of descending of the upper die holder 1, the speed of the pressure plate 4 contacting the parts and pressing downward becomes lower, the punch 74 drives downward through the upper fixed plate 7 to punch the parts below the pressure plate 4, the waste after punching is pushed downward into the tapered hole 521 of the anti-jumping sleeve 52 by the punch 74, the tapered hole 521 limits the possibility of upward bouncing or following the punch 74 of the waste, the waste will fall into the waste box 22 along the adapter hole 522 and the blanking hole 51, which is convenient for the collection and treatment of the waste, effectively integrates the shaping and punching processes, and has a simple and reliable structure.

[0031] The surface piercing die movably fits the punch 74 in the pressing plate 4, and the punch 74 can be used to punch the part on the lower die synchronously in the shaping process of the downward stamping of the upper die; the cooperation precision of the upper die and the lower die is high, the processing quality of the product is guaranteed, and the anti-jumping sleeve 52 with a special structure can make the punching waste in the inside not be taken out by the punch, the jumping phenomenon is avoided, the continuity of the stamping processing is guaranteed, the production and processing efficiency and the processing quality are improved, and the integrated forming processing mode also reduces the use cost of the die.

[0032] It should be emphasized that: the above is only the preferred embodiment of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A surface piercing die comprising an upper die holder (1) and a lower die plate (3) corresponding to each other, characterized in that: The bottom of the upper die holder (1) is provided with an upper pad plate (6) fixedly connected thereto, the bottom of the upper pad plate (6) is provided with an upper fixed plate (7) fixedly connected thereto, the bottom of the upper fixed plate (7) is provided with a press plate (4) capable of moving up and down, the press plate (4) is provided with a punch (74) sliding up and down thereon, the cutting head of the punch (74) is vertically downward, and the top of the punch (74) is fixedly connected with the upper fixed plate (7); the top of the lower die plate (3) is provided with a lower die (5) fixedly connected thereto, and the top surface of the lower die (5) is in structure on the upper and lower surfaces of the bottom surface of the press plate (4); the lower die (5) is provided with an anti-jumping sleeve (52) corresponding to the position of the punch (74) in the upper and lower positions.

2. A surface piercing die according to claim 1, wherein, The upper die holder (1) is provided with an equal-height bolt (8) movably connected thereto, the threaded end of the equal-height bolt (8) penetrates the upper pad plate (6) and the upper fixed plate (7) downward and is fixedly connected with the press plate (4); the equal-height bolt (8) is externally sleeved with a spring (9) in gap cooperation, and the upper and lower ends of the spring (9) respectively abut against the bottom surface of the upper pad plate (6) and the top surface of the press plate (4).

3. A surface piercing die as claimed in claim 1, wherein, The top center of the anti-jumping sleeve (52) is provided with an anti-jumping hole (521), and the bottom center is provided with a linking hole (522), the anti-jumping hole (521) and the linking hole (522) are in communication in the upper and lower positions, the anti-jumping hole (521) is a tapered hole, the caliber of the top of the anti-jumping hole (521) is consistent with the outer diameter of the punch (74), the punch (74) can be inserted into the tapered hole downward, and the diameter of the bottom of the anti-jumping hole (521) is smaller than the diameter of the linking hole (522).

4. A surface piercing die as defined in claim 1, wherein, The bottom of the upper fixed plate (7) is provided with an inner guide column (71), the press plate (4) is provided with a guide hole corresponding to the inner guide column (71) in the upper and lower positions, the upper end of the guide hole is provided with an inner guide sleeve (72) in sleeve cooperation with the inner guide column (71), and the inner guide column (71) and the inner guide sleeve (72) are in sliding cooperation in the upper and lower positions.

5. A surface piercing die as claimed in claim 1, wherein, The upper fixed plate (7) is fixedly connected with the upper fixed plate (7) through the clamping cutting head (73).

6. A surface piercing die according to claim 1 wherein, The center of the lower die (5) and the lower die plate (3) is provided with a blanking hole (51) in communication in the upper and lower positions, the top of the blanking hole (51) corresponds to the bottom of the punch (74) in the upper and lower positions, and the anti-jumping sleeve (52) is embedded in the upper end of the blanking hole (51).

7. A surface piercing die according to claim 6, wherein, The bottom of the lower die plate (3) is provided with a lower supporting plate (2) fixedly connected thereto, the lower supporting plate (2) and the lower die plate (3) are fixedly connected together through a pad block (21), and there is a spacing between the heights; the top surface of the lower supporting plate (2) is provided with a waste box (22) with an opening upward, and the top opening of the waste box (22) corresponds to the blanking hole (51) in the upper and lower positions.

Images