CN220745969U - Punching device - Google Patents

Abstract

The utility model discloses a punching device, which comprises a mounting frame and a punching drill bit, wherein a power end of a pressing cylinder movably penetrates through the mounting frame and then extends to the lower end of the mounting frame, the power end of the pressing cylinder is fixedly connected with a mounting sleeve, the bottom of the mounting sleeve is provided with an inserting port communicated with an inner cavity, a driving sleeve is rotatably sleeved at the bottom of the mounting sleeve, the upper end of the punching drill bit is fixedly connected with a mounting rod, the mounting rod movably penetrates through the inserting port and then is connected into the mounting sleeve, a fixing sleeve is fixedly sleeved at the outer side, close to the bottom, of the mounting sleeve, and a spring telescopic pin for limiting the driving sleeve is fixedly connected at the bottom of the fixing sleeve. According to the utility model, the punching drill bit is quickly disassembled and assembled through a simple structure, so that the drilling requirements of different productions on the aperture are met, the operation is simple and convenient, the stability after installation is high, and the practical effect is obvious.

Description

Punching device

Technical Field

The utility model relates to the related field of punches, in particular to a punch.

Background

Leather has natural grain and luster and comfortable hand feeling, so the leather is widely applied to daily life. In the production process of leather products, in order to match with a special workpiece clamp, leather needs to be perforated.

The existing punching equipment consists of a conveyor belt structure and a punching mechanism, wherein the punching mechanism comprises a metal punching drill bit and a hydraulic cylinder structure for driving the metal punching drill bit, and because different production requirements are different in hole diameter size requirements for punching, the punching drill bit is required to be replaced when punching, so that the punching drill bit of the existing punching device is required to be designed to be convenient to replace and use in a portable disassembling and assembling structure.

Disclosure of Invention

The utility model designs the punching device, thereby solving the problem of inconvenient replacement of the punching bit of the existing punching device in the background technology.

The utility model provides a hole puncher, includes the mounting bracket and punches a hole the drill bit, extends to its lower extreme behind the pneumatic cylinder power end flexible run-through mounting bracket to pneumatic cylinder power end fixedly connected with installation cover, installation cover bottom is provided with the interface of intercommunication inner chamber, installation cover bottom rotates the cover and is equipped with the drive sleeve, punch a hole drill bit upper end fixedly connected with installation pole, installation pole flexible run-through is connected in the installation cover behind the interface, the outside fixed cover that the installation cover is close to the bottom is equipped with fixed cover, and fixed cover bottom fixedly connected with carries out spacing spring expansion pin to the drive sleeve.

Preferably, the top of the inner cavity of the mounting sleeve is fixedly connected with a limiting rod, a second limiting hole is formed in the upper end of the mounting rod, and the limiting rod is matched with the second limiting hole in a sliding insertion manner.

Preferably, the lower end of the limiting rod movably extends to the bottom of the fixed sleeve, and the cross sections of the limiting rod and the second limiting hole are regular hexagons.

Preferably, the driving sleeve is rotationally connected with the bottom of the mounting sleeve through a bearing, and a plurality of groups of first limiting holes are uniformly formed in the upper end face of the driving sleeve.

Preferably, the plurality of groups of first limiting holes are annularly distributed on the upper end face of the driving sleeve, and the first limiting holes are matched with the bottom of the spring telescopic pin in a clamping manner.

Preferably, threads are arranged on the outer side of the mounting rod, and the mounting rod is in threaded plug connection with the driving sleeve.

Preferably, the spring telescopic pin is in a spring-stretching state in a default state.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model is based on the structural design of the existing punching mechanism for leather production and carries out improvement treatment on the basis, wherein the upper end of a punching drill bit is welded with an installation rod for installation and is inserted into an installation sleeve of a power end of a hydraulic cylinder, and the installation rod is matched with a driving sleeve thread lock at the outer side of the installation sleeve and a spring telescopic pin at the outer side of the installation sleeve to carry out secondary reinforcement, so that stable installation of the punching drill bit is ensured.

Drawings

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

FIG. 2 is a schematic view of the bit mounting structure of FIG. 1 according to the present utility model;

FIG. 3 is a bottom schematic view of the mounting sleeve of FIG. 1 in accordance with the present utility model;

fig. 4 is a schematic top view of the drive sleeve of fig. 1 according to the present utility model.

In the figure: 1-mounting frame, 2-hydraulic cylinder, 3-installation sleeve, 301-gag lever post, 4-interface, 5-driving sleeve, 501-bearing, 502-first spacing hole, 6-drill bit that punches a hole, 7-installation rod, 701-spacing dish, 702-second spacing hole, 8-fixed cover, 9-spring expansion pin.

Detailed Description

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-4, a hole puncher, including mounting bracket 1 and punching bit 6, the power end activity of pneumatic cylinder 2 runs through behind mounting bracket 1 and extends to its lower extreme, and the power end fixedly connected with installation cover 3 of pneumatic cylinder 2, installation cover 3 bottom is provided with the interface 4 of intercommunication inner chamber, installation cover 3 bottom rotates the cover and is equipped with drive sleeve 5, the upper end fixedly connected with installation pole 7 of punching bit 6, installation pole 7 activity runs through behind interface 4 and connects in installation cover 3, the outside fixed cover that installation cover 3 is close to the bottom is equipped with fixed cover 8, and fixed cover 8 bottom fixedly connected with carries out spacing spring expansion pin 9 to drive sleeve 5.

Wherein, 3 inner chamber top fixedly connected with gag lever post 301 of installation cover, 7 upper ends of installation pole are provided with second spacing hole 702, sliding grafting cooperation between gag lever post 301 and the second spacing hole 702, and gag lever post 301 lower extreme activity extends to fixed cover 8 bottoms, and gag lever post 301 and second spacing hole 702's cross section is regular hexagon, and the outside of installation pole 7 is provided with the screw thread, and installation pole 7 screw thread grafting connection drive sleeve 5. When the punching bit 6 is installed, the second limiting hole 702 of the installation rod 7 at the upper end of the punching bit 6 is abutted to the limiting rod 301 and is spliced, then the installation rod 7 is spliced in the driving sleeve 5 and rotates the driving sleeve 5, the driving sleeve 5 is in threaded driving with the installation rod 7 to slide in a limiting manner, and then the installation rod 7 moves into the installation sleeve 3 until the limiting disc 701 at the outer side of the installation rod 7 is abutted to the lower end face of the driving sleeve 5, and at the moment, the installation rod 7 is installed and locked under a threaded structure, namely, the installation of the punching bit 6 in the installation sleeve 3 is completed.

Wherein, drive sleeve 5 rotates through bearing 501 and installation cover 3 bottom and is connected, and the up end of drive sleeve 5 evenly is provided with the first spacing hole 502 of multiunit, and the first spacing hole 502 of multiunit is annular and distributes in the up end of drive sleeve 5, and first spacing hole 502 cooperates with the bottom joint of spring expansion pin 9, and spring expansion pin 9 defaults under the state and is stretch the state. According to the utility model, after the punching drill bit 6 is installed, the two groups of spring telescopic pins 9 are clamped in the first limiting holes 502 at the upper end of the driving sleeve 5 through the spring telescopic pins 9 which are stretched, and at the moment, the driving sleeve 5 can be clamped and limited by the two groups of spring telescopic pins 9 at the same time, so that the loosening of the punching drill bit 6 caused by shaking of the driving sleeve 5 in the punching process is avoided, and the leather hole site forming effect in the punching process is influenced.

Examples: when the punching drill bit is used, the second limiting hole 702 of the mounting rod 7 at the upper end of the punching drill bit 6 is abutted to the limiting rod 301 and is spliced, then the mounting rod 7 is spliced in the driving sleeve 5 and rotates the driving sleeve 5, the driving sleeve 5 drives the mounting rod 7 to slide in a limiting manner by threads, and then the mounting rod 7 moves towards the mounting sleeve 3 until the limiting disc 701 at the outer side of the mounting rod 7 abuts against the lower end face of the driving sleeve 5, at the moment, the mounting of the mounting rod 7 in the mounting sleeve 3 is completed under a threaded structure, and then the punching drill bit 6 is clamped in the first limiting hole 502 at the upper end of the driving sleeve 5 by the spring telescopic pins 9 which are stretched out, at the moment, the two groups of spring telescopic pins 9 are clamped simultaneously, so that the driving sleeve 5 can be clamped and limited, and the driving sleeve 5 is prevented from shaking in the punching drill bit 6 in the punching process. And during subsequent disassembly, only the spring telescopic pin 9 is required to be pulled to be separated from the first limiting hole 502, and then the punching drill bit 6 can be disassembled by reversing the driving sleeve 5, so that the operation is very simple and convenient, and the stability after the installation is high.

The above examples are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present utility model should be made in the equivalent manner, and the embodiments are included in the protection scope of the present utility model.

In the description of the present utility model, it should be understood that the terms "orientation" or "positional relationship" are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the utility model.

Claims (7)

1. The utility model provides a hole puncher, includes mounting bracket (1) and punching bit (6), a serial communication port, mounting bracket (1) upper end fixed mounting is in pneumatic cylinder (2), the power end activity of pneumatic cylinder (2) runs through behind mounting bracket (1) and extends to its lower extreme to pneumatic cylinder (2) power end fixedly connected with installation cover (3), installation cover (3) bottom is provided with interface (4) of intercommunication inner chamber, installation cover (3) bottom rotates the cover and is equipped with drive cover (5), punching bit (6) upper end fixedly connected with installation pole (7), is connected in installation cover (3) behind installation pole (7) activity penetration interface (4), the outside fixed cover that installation cover (3) are close to the bottom is equipped with fixed cover (8), and fixed cover (8) bottom fixedly connected with carries out spacing spring expansion pin (9) to drive cover (5).

2. The punching device according to claim 1, characterized in that a limit rod (301) is fixedly connected to the top of the inner cavity of the mounting sleeve (3), a second limit hole (702) is formed in the upper end of the mounting rod (7), and the limit rod (301) is in sliding insertion fit with the second limit hole (702).

3. A punch as claimed in claim 2, wherein the lower end of the limit rod (301) is movably extended to the bottom of the fixed sleeve (8), and the cross sections of the limit rod (301) and the second limit hole (702) are regular hexagons.

4. A punch according to claim 3, wherein the driving sleeve (5) is rotatably connected with the bottom of the mounting sleeve (3) through a bearing (501), and a plurality of groups of first limiting holes (502) are uniformly formed in the upper end surface of the driving sleeve (5).

5. The punching device according to claim 4, characterized in that a plurality of groups of first limiting holes (502) are annularly distributed on the upper end face of the driving sleeve (5), and the first limiting holes (502) are in clamping fit with the bottom of the spring telescopic pin (9).

6. A punch as claimed in claim 5, wherein the outer side of the mounting rod (7) is provided with a screw thread, and the mounting rod (7) is screw-connected to the driving sleeve (5).

7. A punch as claimed in claim 6, wherein the spring retractable pin (9) is in a sprung state by default.