CN210023394U

CN210023394U - Eccentric wheel type stamping device

Info

Publication number: CN210023394U
Application number: CN201920659061.7U
Authority: CN
Inventors: 范玉; 蒋永加; 郑东亚; 蒋一凡; 伏建军
Original assignee: Jiangsu Institute of Architectural Technology; Air Force Service College of PLA
Current assignee: Jiangsu Institute of Architectural Technology; Air Force Service College of PLA
Priority date: 2019-05-09
Filing date: 2019-05-09
Publication date: 2020-02-07
Anticipated expiration: 2029-05-09

Abstract

The utility model discloses an eccentric wheel formula stamping device belongs to stamping forming technical field. A rotating shaft is arranged on the frame, and a speed reducing motor for driving the rotating shaft is arranged on one side of the frame; the rotating shaft is connected with the stamping platform through an eccentric wheel structure; the rotating shaft is rotatably sleeved with a chain wheel seat, a chain wheel is mounted on the chain wheel seat, and the chain wheel is connected with a speed reducing motor through a transmission chain; a gear reducer is connected between the side end of the chain wheel seat and the rotating shaft; eccentric wheels are fixedly mounted at two ends of the rotating shaft; the outer side of the eccentric wheel is sleeved with a bearing; the bearing is connected with the stamping platform through a connecting screw rod. The utility model adopts the gear reducer, the transmission is stable, the transmission rigidity can be ensured, the transmission structure is simplified, and the volume of the equipment is reduced; the symmetrical arrangement of the eccentric wheels ensures the stability of the stamping platform, and the stamping platform is subjected to a force which is basically vertical up and down in the operation process, so that the eccentric load force applied to a sliding rail for controlling the track of the stamping platform is greatly reduced.

Description

Eccentric wheel type stamping device

Technical Field

The utility model relates to a stamping forming technical field specifically is an eccentric wheel formula stamping device.

Background

The stamping production mainly aims at plates, can perform blanking, punching, forming, blanking, deep drawing, trimming, fine blanking, shaping, riveting, extrusion and other processing through a die, and is widely applied to various fields.

Chinese patent discloses a stamping device and a stamping die (CN 204866990U), which includes a left fixing block, a right fixing block, and an intermediate block disposed between the left fixing block and the right fixing block, and both disposed on a rotating shaft, and the left fixing block and the right fixing block can slide on the rotating shaft. A groove matched with the eccentric wheel is formed in the middle block, and the middle block can move in the vertical direction along the support frame by clamping the eccentric wheel in the groove; and a stamping rod is fixedly connected to the middle block, and the middle block can drive the stamping rod to move in the vertical direction when moving in the vertical direction. The stamping device is simple in structure, suitable for stamping small parts such as capacitor shells, free of resource waste and convenient to operate.

In the actual use process, the following problems exist:

first, the drive stiffness is not sufficient, so it is only suitable for stamping small parts;

secondly, a specific speed reducing mechanism is not disclosed, and the stability of the speed reducing mechanism directly influences the punch forming effect;

secondly, the stability of single eccentric wheel is not good, and the punching precision is low.

Disclosure of Invention

In order to solve the technical problem, the utility model provides an eccentric wheel formula stamping device.

The utility model discloses a following technical scheme realizes: an eccentric wheel type stamping device comprises a frame, wherein a rotating shaft is arranged on the frame, and a speed reducing motor for driving the rotating shaft is arranged on one side of the frame; the rotating shaft is connected with the stamping platform through an eccentric wheel structure; the rotating shaft is rotatably sleeved with a chain wheel seat, a chain wheel is mounted on the chain wheel seat, and the chain wheel is connected with a speed reducing motor through a transmission chain; a gear reducer is connected between the side end of the chain wheel seat and the rotating shaft; eccentric wheels are fixedly mounted at two ends of the rotating shaft; the outer side of the eccentric wheel is sleeved with a bearing; the bearing is connected with the stamping platform through a connecting screw rod.

It further comprises the following steps: the lower side of the reduction gear is provided with a limiting column, and the upper end of the limiting column is inserted into a limiting groove on one side of the gear reducer in a matched mode.

A limiting sliding sleeve is fixedly mounted on the rack, the limiting sliding sleeve is slidably sleeved on the limiting column, and a return spring is mounted on the limiting column.

The lower side of the limiting column is connected with a control pull ring through a pull rope.

The outer peripheral surface of the bearing is provided with a threaded hole, the lower end of the connecting screw rod is provided with an external thread, the lower end of the connecting screw rod is connected and installed in the threaded hole of the bearing through a thread, and the lower end of the connecting screw rod is provided with a fastening nut; the upper end of the connecting screw rod is hinged below the stamping platform through a pin shaft structure.

When the stamping device is used, the speed reduction motor drives the chain wheel and the chain wheel seat to rotate through the transmission chain, the chain wheel seat drives the rotating shaft to rotate through the gear reducer, and the rotating shaft drives the stamping platform to move up and down repeatedly through the eccentric wheel, the bearing and the connecting screw rod to complete the stamping process.

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

when the chain wheel seat rotates, the power is transmitted to the rotating shaft through the gear reducer, the gear reducer is stable in transmission, the transmission rigidity can be ensured, the transmission structure is simplified, and the size of equipment is reduced;

when the limiting column is positioned in the limiting groove on one side of the gear reducer, the chain wheel seat transmits power to the rotating shaft through the gear reducer; when the control pull ring is pulled down to enable the limiting column to leave the limiting groove on one side of the gear reducer, the gear reducer automatically rotates, and when the machining frequency is high, the machining efficiency can be improved by the method;

the symmetrical arrangement of the eccentric wheels ensures the stability of the stamping platform, the sliding friction between the bearing and the eccentric wheels is realized in the operation process, the connecting screw rod is vertical all the time, and the stamping platform is subjected to a basically vertical force, so that the unbalance loading force of a sliding rail for controlling the track of the stamping platform is greatly reduced, the sliding rail has basically no unbalance loading, and the service life of the sliding rail can be obviously prolonged.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a sprocket seat configuration;

FIG. 3 is an enlarged view of the junction of the gear reducer, the sprocket carrier and the shaft of FIG. 1;

FIG. 4 is a schematic view of a bearing construction;

FIG. 5 is a left side view of FIG. 4;

FIG. 6 is a schematic view of an eccentric wheel structure;

FIG. 7 is a left side view of FIG. 6;

FIG. 8 is a schematic view of the structure of the rotating shaft;

in the figure: 1. a frame; 2. a gear reducer; 3. a limiting column; 4. a rotating shaft; 5. a reduction motor; 6. a sprocket seat; 7. a sprocket; 8. a drive chain; 9. a limiting sliding sleeve; 10. a stamping platform; 11. an eccentric wheel; 12. a bearing; 13. connecting a screw rod; 14. a return spring; 15. and controlling the pull ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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 and 8, an eccentric wheel type punching device includes a frame 1, a punching platform 10, a rotating shaft 4 and a reduction motor 5. Two ends of the rotating shaft 4 are installed on the frame 1 through bearing seats, the rotating shaft 4 is driven by the gear motor 5, and the rotating shaft 4 drives the stamping platform 10 to move up and down repeatedly through an eccentric wheel structure. The frame 1 is provided with a slide rail, and the slide rail is matched with the stamping platform 10 to ensure that the stamping platform 10 repeatedly moves up and down.

The improvement of the embodiment is that:

referring to fig. 2 and 3, the inner hole of the sprocket seat 6 is sleeved on the rotating shaft 4 through a rotating pair, the sprocket 7 is sleeved on the sprocket seat 6, and the sprocket 7 is connected with the sprocket seat 6 through an inner key. The chain wheel 7 is connected with the reducing motor 5 through the transmission chain 8, and after the reducing motor 5 is started, the chain wheel 7 is driven by the transmission chain 8 to rotate together with the chain wheel seat 6.

The left end of the chain wheel seat 6 is sleeved outside the inner gear ring of the gear reducer 2 and is fixedly connected with the inner gear ring through a bolt, so that the chain wheel seat 6 and the inner gear ring of the gear reducer 2 rotate together. The output shaft of the gear reducer 2 is provided with a through hole, the output shaft of the gear reducer 2 is sleeved on the rotating shaft 4, and the output shaft of the gear reducer 2 is connected with the rotating shaft 4 through an inner key. When the sprocket base 6 rotates, power is transmitted to the rotary shaft 4 through the gear reducer 2. The gear reducer 2 has stable transmission, can also ensure the transmission rigidity, simplifies the transmission structure and reduces the volume of the equipment.

In addition, a limiting column 3 is arranged at the lower side of the reduction gear device 2. Specifically, the method comprises the following steps: spacing sliding sleeve 9 fixed mounting is in frame 1, and spacing post 3 slip suit is in spacing sliding sleeve 9, and spacing post 3 can slide from top to bottom along spacing sliding sleeve 9. The upper end of the limit column 3 is provided with a circumferential step, the return spring 14 is sleeved on the limit column 3, two ends of the return spring 14 are respectively abutted between the step of the limit column 3 and the limit sliding sleeve 9, and the return spring 14 provides upward movement force for the limit column 3, so that the upper end of the limit column 3 can be matched with and inserted into a limit groove on one side of the gear reducer 2. The lower side of the limit column 3 is connected with a control pull ring 15 through a pull rope.

When the limiting column 3 is positioned in the limiting groove at one side of the gear reducer 2, the chain wheel seat 6 transmits power to the rotating shaft 4 through the gear reducer 2; when the pull ring 15 is controlled in a pull-down mode, the limiting column 3 leaves the limiting groove on one side of the gear reducer 2, the gear reducer 2 rotates, namely, the chain wheel seat 6 cannot transmit power to the rotating shaft 4 through the gear reducer 2, the time for switching a motor is saved in sequence, and when the machining frequency is high, the method can improve the machining efficiency.

Referring to fig. 4 to 7, eccentric wheels 11 are sleeved at two ends of the rotating shaft 4, the eccentric wheels 11 are connected with the rotating shaft 4 through an inner key, and the two eccentric wheels 11 are symmetrically distributed at two sides of the stamping platform 10. The peripheral surface of the eccentric wheel 11 is sleeved with a bearing 12, the peripheral surface of the bearing 12 is provided with a threaded hole, and a threaded column connected with the lower end of a screw 13 is arranged in the threaded hole of the bearing 12; the lower end of the connecting screw 13 is fastened in a threaded hole of the bearing 12 by a fastening nut. The upper end of the connecting screw rod 13 is hinged below the stamping platform 10 through a pin shaft structure, and the connecting screw rod 13 is vertically arranged.

When the eccentric wheel 11 rotates, the stamping platform 10 is driven to move up and down repeatedly through the bearing 12 and the connecting screw 13 on the outer side, and the stability of the stamping platform 10 is ensured through the symmetrical arrangement. In addition, in the embodiment, a transmission structure of the bearing 12 and the connecting screw 13 is adopted, the bearing 12 and the connecting screw 13 are rigidly connected, sliding friction is generated between the bearing 12 and the eccentric wheel 11 in the operation process, the connecting screw 13 is always vertical, and the stamping platform 10 is subjected to a substantially vertical force, so that the unbalance loading force applied to a slide rail for controlling the track of the stamping platform 10 is greatly reduced, the slide rail has substantially no unbalance loading, and the service life of the slide rail can be obviously prolonged.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An eccentric wheel type stamping device comprises a rack (1), wherein a rotating shaft (4) is installed on the rack (1), and a speed reducing motor (5) for driving the rotating shaft (4) is arranged on one side of the rack (1); the rotating shaft (4) is connected with the stamping platform (10) through an eccentric wheel structure;

the method is characterized in that:

a chain wheel seat (6) is rotatably sleeved on the rotating shaft (4), a chain wheel (7) is mounted on the chain wheel seat (6), and the chain wheel (7) is connected with a speed reducing motor (5) through a transmission chain (8); a gear reducer (2) is connected between the side end of the chain wheel seat (6) and the rotating shaft (4);

eccentric wheels (11) are fixedly mounted at two ends of the rotating shaft (4); the outer side of the eccentric wheel (11) is sleeved with a bearing (12); the bearing (12) is connected with the stamping platform (10) through a connecting screw rod (13).

2. The eccentric wheel type press device according to claim 1, wherein: the gear reducer (2) downside is equipped with spacing post (3), and spacing post (3) upper end cooperation is inserted in the spacing groove of gear reducer (2) one side.

3. The eccentric wheel type press device according to claim 2, wherein: fixed mounting has spacing sliding sleeve (9) on frame (1), and spacing sliding sleeve (9) slip suit is on spacing post (3), installs on spacing post (3) and replys spring (14).

4. The eccentric wheel type press device according to claim 3, wherein: the lower side of the limiting column (3) is connected with a control pull ring (15) through a pull rope.

5. The eccentric wheel type press device according to claim 1, wherein: the outer peripheral surface of the bearing (12) is provided with a threaded hole, the lower end of the connecting screw rod (13) is provided with an external thread, the lower end of the connecting screw rod (13) is installed in the threaded hole of the bearing (12) through threaded connection, and the lower end of the connecting screw rod (13) is provided with a fastening nut; the upper end of the connecting screw rod (13) is hinged below the stamping platform (10) through a pin shaft structure.