CN211727153U - Punching machine - Google Patents

Abstract

The embodiment of the utility model discloses piercing press relates to machining equipment field, which comprises a bod, the safety cover, first spring, the pull rod, go up the lid, a piston, second spring and lower lid, the lower extreme of safety cover and the last port threaded connection in piston chamber, it is located between piston and the safety cover to go up the lid, the pull rod sets up in the safety cover, the upper end of pull rod is provided with the spacing ring, be connected with the upper end of piston after the lower extreme of pull rod passes the through-hole, the periphery of pull rod is located to first spring housing, the lid sets up in the lower port in piston chamber down, the lower extreme of piston passes down the lid, the tip of piston lower extreme sets up the mould mounting hole. The double springs are adopted to provide return power, so that the return time of the punching die is shortened, and the working efficiency is improved; through adopting the design that the punching die is separated from the machine body, the punching operations with different sizes can be completed by replacing the punching dies with different sizes; compare in current piercing press, the utility model discloses the piercing press volume is littleer, convenient transport.

Description

Punching machine

Technical Field

The embodiment of the utility model provides a relate to the machining equipment field, concretely relates to piercing press.

Background

As a light and small punching equipment machine widely used by people, the punching machine is widely used in various fields all the time, the industries such as industry and building are involved, the punching is a process of punching a hole by using a drill bit under gravity, the existing punching machine is inconvenient to carry due to large volume in the using process, the return time of a punching die is long, the working efficiency is low, the punching die and a machine body are integrated, and the punching operation with different sizes can not be finished.

SUMMERY OF THE UTILITY MODEL

Therefore, the embodiment of the utility model provides a punching machine to there is bulky, the long and unable problem of accomplishing the not unidimensional operation of punching a hole of cut-out press return time in solving current punching machine.

In order to achieve the above object, an embodiment of the present invention provides a punching machine, which includes a machine body, a protective cover, a first spring, a pull rod, an upper cover body, a piston, a second spring, and a lower cover body, wherein a lower end of the machine body is provided with a lower mold mounting hole, an upper end of the machine body is provided with a piston cavity, a lower end of the protective cover is in threaded connection with an upper port of the piston cavity, the upper cover body and the piston are both disposed in the piston cavity, the upper cover body is located between the piston and the protective cover, the upper cover body is provided with a through hole, the pull rod is disposed in the protective cover, an upper end of the pull rod is provided with a spacing ring, a lower end of the pull rod passes through the through hole and then is connected with an upper end of the piston, the first spring is sleeved on a periphery of the pull rod, the lower cover body is disposed on a lower port, the second spring is sleeved on the periphery of the piston, and a transition joint communicated with the piston cavity is arranged on one side of the machine body.

Furthermore, the outer peripheral surface of the upper cover body and the outer peripheral surface of the upper end of the piston are respectively provided with a first annular groove, and a check ring and an O-shaped sealing ring are arranged in the first annular groove.

Furthermore, a second annular groove and a third annular groove are formed in the inner wall of the through hole, the second annular groove is located above the third annular groove, a dust blocking ring is arranged in the second annular groove, and a check ring and an O-shaped sealing ring are arranged in the third annular groove.

Further, the lower cover body is in threaded connection with the lower port of the piston cavity.

Further, a handle is arranged on the outer wall of the protective cover.

Further, a rubber sleeve is sleeved on the lifting handle.

Furthermore, a quick connector male head is arranged on the transition joint.

The embodiment of the utility model provides a have following advantage: the punching machine provided by the embodiment of the utility model adopts the double springs to provide the return power, thereby shortening the return time of the punching die and improving the working efficiency; through adopting the design that the punching die is separated from the machine body, the punching operations with different sizes can be completed by replacing the punching dies with different sizes; compare in current piercing press, the utility model discloses the piercing press volume is littleer, convenient transport.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is a schematic side view, sectional structure diagram of a punching machine according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1.

Description of reference numerals: 1. a body; 2. a protective cover; 3. a first spring; 4. a pull rod; 5. an upper cover body; 6. a piston; 7. a second spring; 8. a lower cover body; 9. a lower die mounting hole; 10. a retainer ring; 11. an O-shaped sealing ring; 12. a handle; 13. a rubber sleeve; 14. a transition joint; 15. a dust ring; 16. a discharge foot; 17. a guide key; 18. an upper die mounting hole; 19. and (5) jacking the screw.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, the punching machine comprises a machine body 1, a protective cover 2, a first spring 3, a pull rod 4, an upper cover body 5, a piston 6, a second spring 7 and a lower cover body 8, wherein the lower end of the machine body 1 is provided with a lower die mounting hole 9, the lower die mounting hole 9 is used for mounting a lower punching die, the upper end of the machine body 1 is provided with a piston cavity, the piston cavity is vertically arranged, the piston cavity is provided with an upper port and a lower port, the upper port and the lower port of the piston cavity are both provided with threads, the side walls of the upper port and the lower port of the piston cavity are both provided with a jackscrew hole, a jackscrew 19 playing a fastening role is arranged in the jackscrew hole, one side of the machine body 1 is provided with a transition joint 14 communicated with the piston cavity, the transition joint 14 is used for injecting hydraulic oil into the piston.

The lower end of the protection cover 2 is opened, the outer peripheral surface of the lower end of the protection cover 2 is provided with threads, and the lower end of the protection cover 2 is in threaded connection with the upper end opening of the piston cavity. The upper cover body 5 and the piston 6 are both arranged in the piston cavity, the upper cover body 5 is positioned between the piston 6 and the protection cover 2, and the upper surface of the upper cover body 5 is abutted against the lower end surface of the protection cover 2 so as to prevent the upper cover body 5 from moving upwards under stress. The upper cover body 5 is provided with a through hole, a second annular groove and a third annular groove are arranged on the inner wall of the through hole, the second annular groove is located above the third annular groove, a dust blocking ring 15 is arranged in the second annular groove, and a check ring 10 and an O-shaped seal ring 11 are arranged in the third annular groove. The outer peripheral surface of the upper cover body 5 and the outer peripheral surface of the upper end of the piston 6 are respectively provided with a first annular groove, a check ring 10 and an O-shaped sealing ring 11 are arranged in the first annular groove, and under the matching of the respective check ring 10 and the O-shaped sealing ring 11, the upper cover body 5 and the piston 6 enable hydraulic oil entering the cavity to only stay between the upper cover body 5 and the piston 6, so that the piston 6 is pushed to move downwards. Pull rod 4 sets up in safety cover 2, and the upper end of pull rod 4 is provided with the spacing ring, and the external diameter of spacing ring is greater than the external diameter of spring, and the lower extreme of pull rod 4 is provided with the screw thread, and the lower extreme of pull rod 4 passes behind the through-hole with the upper end threaded connection of piston 6, and the periphery of pull rod 4 is located to first spring 3 cover, and the upper end of first spring 3 supports and leans on in the spacing ring, and the lower extreme supports and leans on the upper surface in last lid 5, and the first spring 3 that is in compression state can provide power for piston 6 resets.

As shown in fig. 2, the lower cover body 8 is ring-shaped, the lower cover body 8 is arranged at the lower port of the piston cavity, the outer peripheral surface of the lower cover body 8 is provided with threads, the lower cover body 8 is in threaded connection with the lower port of the piston cavity and is fastened through a jackscrew 19, two discharging legs 16 are symmetrically arranged on the lower edge of the lower cover body 8, the discharging legs 16 are in a sheet structure, and after punching is finished, the discharging legs 16 can prevent the plate from moving upwards along with the upper punching die in the upward movement process of the upper punching die. In order to prevent the piston 6 from rotating in the up-and-down movement process, a guide groove is formed in the lower end of the piston 6 along the length direction of the piston 6, a guide key 17 is arranged on the inner wall of the corresponding underground cover body 8, the guide key 17 is in sliding fit with the guide groove, and the guide key 17 is in sliding fit with the lower cover body 8 through a screw. Piston 6 and pull rod 4 are coaxial setting, and the lower extreme of piston 6 passes lid 8 down, and the tip of piston 6 lower extreme sets up mould mounting hole 18, goes up mould mounting hole 18 and is used for installing upper portion cut-out press, is provided with jackscrew 19 that is used for fixed upper portion cut-out press on the lateral wall of last mould mounting hole 18, through adopting cut-out press and organism 1 separation design, through changing the cut-out press of unidimensional, can accomplish the not unidimensional operation of punching a hole. The periphery of piston 6 is located to the second spring 7 cover, and second spring 7 also can provide power for piston 6 resets equally, provides return power through adopting double spring, shortens cut-out press's return time, improves work efficiency.

Further, be provided with handle 12 on the outer wall of safety cover 2 in a preferred embodiment of the utility model, the cover is equipped with rubber sleeve 13 on handle 12, can conveniently carry the offset machine through setting up handle 12. Be provided with the public head of quick-operation joint (not shown) on the transition joint 14 of this embodiment in addition, the public head of quick-operation joint can realize hydraulic pump and piercing press high-speed joint with the female first cooperation of quick-operation joint, compares in current piercing press, the utility model discloses a 1 is long-pending littleer, convenient transport of organism punches a hole.

When the hydraulic punching machine works, high-pressure hydraulic oil pumped by a hydraulic pump enters a piston cavity through the transition joint 14, the piston 6 drives the pull rod 4 to move downwards under the action of the hydraulic oil, the first spring 3 and the second spring 7 are compressed, the upper punching die and the lower punching die are matched to complete punching, after punching is finished, the hydraulic pump returns oil, and the piston 6 and the pull rod 4 return to the initial positions under the elastic force action of the first spring 3 and the second spring 7.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims (7)

1. A punching machine is characterized by comprising a machine body, a protective cover, a first spring, a pull rod, an upper cover body, a piston, a second spring and a lower cover body, wherein a lower die mounting hole is formed in the lower end of the machine body, a piston cavity is formed in the upper end of the machine body, the lower end of the protective cover is in threaded connection with an upper end opening of the piston cavity, the upper cover body and the piston are both arranged in the piston cavity, the upper cover body is located between the piston and the protective cover, a through hole is formed in the upper cover body, the pull rod is arranged in the protective cover, a limiting ring is arranged at the upper end of the pull rod, the lower end of the pull rod penetrates through the through hole and then is connected with the upper end of the piston, the first spring is sleeved on the periphery of the pull rod, the lower cover body is arranged at the lower end opening of the piston cavity, the, the second spring is sleeved on the periphery of the piston, and a transition joint communicated with the piston cavity is arranged on one side of the machine body.

2. The punching machine according to claim 1, wherein the outer peripheral surface of the upper cover and the outer peripheral surface of the upper end of the piston are provided with first annular grooves, respectively, and a retainer ring and an O-ring are provided in the first annular grooves.

3. The punching machine according to claim 2, wherein a second annular groove and a third annular groove are provided on an inner wall of the through hole, the second annular groove is located above the third annular groove, a dust retainer is provided in the second annular groove, and a retainer ring and an O-ring are provided in the third annular groove.

4. The punching machine according to claim 1, 2 or 3, wherein the lower cover is screw-coupled with a lower port of the piston chamber.

5. The punching machine of claim 4, wherein a handle is provided on an outer wall of the protective cover.

6. The punching machine of claim 5, wherein a rubber sleeve is sleeved over the handle.

7. The punching machine of claim 6, wherein a quick-connect male is provided on the transition fitting.

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