CN210936696U

CN210936696U - Compressing device of hydraulic punching machine

Info

Publication number: CN210936696U
Application number: CN201921877077.1U
Authority: CN
Inventors: 夏志强
Original assignee: Changshu Xiaxin Machinery Co ltd
Current assignee: Changshu Xiaxin Machinery Co ltd
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2020-07-07
Anticipated expiration: 2029-11-04

Abstract

The utility model relates to a machinery processing technology field specifically discloses a closing device of hydraulic piercing press, including fixed plate and depression bar. The both sides at the punching press frame are fixed through fixing bolt to the fixed plate symmetry, and two fixed plates about punching press frame one side is provided with have seted up vertical perforation on the fixed plate, and fenestrate inside sets up and vertical depression bar, the bottom fixedly connected with briquetting of depression bar, and the nested spring that has on the depression bar between the fixed plate of briquetting and lower extreme. When punching, the depression bar descends along with the punching frame, and the briquetting is pressed on the stamping workpiece to accomplish compressing tightly of stamping workpiece. The briquetting is pressed on the stamping workpiece, and briquetting extrusion spring makes its compression, and the depression bar slides in perforating inside to play the cushioning effect, avoided the briquetting to crush the stamping workpiece. The bottom of the pressing block is provided with a rubber layer. The utility model discloses the advantage: simple structure, convenient operation, good synchronism, good safety and convenient popularization and implementation.

Description

Compressing device of hydraulic punching machine

Technical Field

The utility model relates to the technical field of machining, specifically a closing device of hydraulic piercing press.

Background

In the process of processing automobile parts, hole parts such as through holes, mounting holes and pin holes need to be punched and processed through a punching process, the existing punching equipment is simple in structure, and only the end face part of a plate can be pressed through the pressing arrangement, so that the edge of an orifice can be damaged due to huge impact during punching; and the existing pressing device needs manual operation for pressing, and is very inconvenient to use.

Chinese patent (publication No. CN 207086664U, publication No. 2018.03.13) discloses a punching device with a pressing structure, which comprises a fixed seat, a punching table-board arranged on the fixed seat through a mounting rod, and the pressing structure and the punching structure which are arranged on the punching table-board; a lower punching hole is arranged on the punching table top; the punching structure comprises a punching oil cylinder, a punching plate and a punching cutter, wherein the punching oil cylinder is vertically arranged downwards, the punching plate is arranged at the end part of the punching rod of the punching oil cylinder, and the punching cutter is arranged on the punching plate and is matched with the position of the upper punch hole. When the device is used for stamping, the whole plate workpiece is compressed, the stamped edge part cannot be damaged due to large external force, and the device is compressed by the oil cylinder in an operating mode, so that the operation process is simple, the compression positioning is accurate, the compression force is large, the sliding cannot occur, and the use is convenient. Need install the hydraulic stem in addition and drive, make the device structure complicated, increased manufacturing cost, and the synchronism is poor, is not convenient for popularize and implement.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a closing device of hydraulic punching machine to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a pressing device of a hydraulic punching machine comprises a fixing plate and a pressing rod. The both sides at the punching press frame are fixed through fixing bolt to the fixed plate symmetry, and two fixed plates about punching press frame one side is provided with have seted up vertical perforation on the fixed plate, and fenestrate inside sets up and vertical depression bar, the bottom fixedly connected with briquetting of depression bar, and the nested spring that has on the depression bar between the fixed plate of briquetting and lower extreme. When punching, the depression bar descends along with the punching frame, and the briquetting is pressed on the stamping workpiece to accomplish compressing tightly of stamping workpiece. The briquetting is pressed on the stamping workpiece, and briquetting extrusion spring makes its compression, and the depression bar slides in perforating inside to play the cushioning effect, avoided the briquetting to crush the stamping workpiece. The bottom of briquetting is provided with the rubber layer, and the setting on rubber layer has increased the frictional force of briquetting, has avoided the stamping workpiece to remove.

As a further aspect of the present invention: the fixing plate is of a plate-shaped structure with an L-shaped section, so that the fixing of the fixing plate is facilitated.

As a further aspect of the present invention: the pressure bar is sleeved inside the through hole in a sliding mode, the top of the pressure bar is provided with threads, and the nut is connected to the top of the pressure bar in a threaded mode.

As a further aspect of the present invention: the below of nut is nested on the depression bar has the buffering packing ring, and the buffering packing ring plays the cushioning effect, has reduced the collision between nut and the fixed plate, has avoided the fixed plate to warp.

As a further aspect of the present invention: perforated inside wall rotates and is provided with a plurality of balls, and vertical ball groove has been seted up to the lateral wall of depression bar, and the ball nestification is in the inside in ball groove to reduce the sliding friction power of depression bar, avoided the depression bar lift in-process to rotate simultaneously.

As a further aspect of the present invention: the depression bar includes outer pole and interior pole, and interior pole slip nestification is in the inside of outer pole, and the perforation of lower extreme fixed plate is passed to the outer pole, and the top of outer pole is fixed and is provided with the screw thread post, and screw thread post radius is less than the outer pole radius, and the screw thread post passes the perforation of upper end fixed plate, and nut threaded connection is on the screw thread post to the fixed of depression bar has been realized. The spring is nested on the inner rod, so that the compression is completed.

Compared with the prior art, the beneficial effects of the utility model are that: the fixed plates are symmetrically fixed on two sides of the stamping frame through the fixed bolts and lift together with the stamping frame, so that an additional driving device is avoided, the device is simplified, and the manufacturing cost is reduced. The briquetting is pressed on the stamping workpiece, and briquetting extrusion spring makes its compression, and the depression bar slides in perforating inside to play the cushioning effect, avoided the briquetting to crush the stamping workpiece. The bottom of briquetting is provided with the rubber layer, and the setting on rubber layer has increased the frictional force of briquetting, has avoided the stamping workpiece to remove. The ball is nested in the ball groove, so that the sliding friction force of the pressure rod is reduced, and the rotation of the pressure rod in the lifting process is avoided. The utility model discloses the advantage: simple structure, convenient operation, good synchronism, good safety and convenient popularization and implementation.

Drawings

Fig. 1 is a schematic structural view of a pressing device 1 of a hydraulic punching machine in embodiment.

Fig. 2 is a schematic top view of a hole in a holding-down device of a hydraulic punching machine.

Fig. 3 is a schematic structural view of a pressing rod in embodiment 2 of a pressing device of a hydraulic punching machine.

In the figure, a stamping frame 1, a fixing plate 2, a nut 3, a thread 4, a buffer washer 5, a pressure rod 6, a ball groove 7, a spring 8, a pressure block 9, a rubber layer 10, a fixing bolt 11, a through hole 12, a ball 13, a thread column 14, an outer rod 15 and an inner rod 16.

Detailed Description

In order to clearly understand the technical features, objects and effects of the present invention, the present invention will now be described with reference to the accompanying drawings.

Example 1

Referring to fig. 1-2, a pressing device of a hydraulic punching machine includes a fixing plate 2 and a pressing rod 6. 2 symmetrical both sides of fixing plate through fixing bolt 11 and fixing at stamping frame 1 of fixed plate, stamping frame 1 one side is provided with two upper and lower fixed plates 2, fixed plate 2 is the platelike structure of cross-section for the L type, thereby be convenient for fixed plate 2 fixed, vertical perforation 12 has been seted up on fixed plate 2, perforated 12 inside sets up and vertical depression bar 6, depression bar 6 slip cap is established in perforated 12 inside, screw thread 4 has been seted up at depression bar 6's top, 3 threaded connection at depression bar 6's top of nut, depression bar 6's bottom fixedly connected with briquetting 9, nested spring 8 that has on depression bar 6 between the fixed plate 2 of briquetting 9 and lower extreme. When punching is carried out, the pressing rod 6 descends along with the punching frame 1, and the pressing block 9 presses on the punching part, so that the pressing of the punching part is completed. Briquetting 9 is pressed on the stamping workpiece, and briquetting 9 extrusion spring 8 makes its compression, and depression bar 6 slides in perforation 12 is inside to play the cushioning effect, avoided briquetting 9 to crush the stamping workpiece.

The bottom of briquetting 9 is provided with rubber layer 10, and the setting on rubber layer 10 has increased the frictional force of briquetting 9, has avoided the stamping workpiece to remove. The below of nut 3 nests on depression bar 6 and has buffer washer 5, and buffer washer 5 plays the cushioning effect, has reduced the collision between nut 3 and the fixed plate 2, has avoided fixed plate 2 to warp. The inside wall of perforation 12 rotates and is provided with a plurality of balls 13, and vertical ball groove 7 has been seted up to the lateral wall of depression bar 6, and ball 13 nestification is in the inside of ball groove 7 to reduce the sliding friction power of depression bar 6, avoided depression bar 6 lift in-process to rotate simultaneously.

The utility model discloses a theory of operation is: in the descending process of the stamping frame 1 in stamping, when stamping is carried out, the pressure rod 6 descends along with the stamping frame 1, and the pressing block 9 is pressed on the stamping part, so that the stamping part is pressed tightly. Briquetting 9 is pressed on the stamping workpiece, and briquetting 9 extrusion spring 8 makes its compression, and depression bar 6 slides in perforation 12 is inside to play the cushioning effect, avoided briquetting 9 to crush the stamping workpiece.

Example 2

Referring to fig. 3, based on embodiment 1, the compression bar 6 includes an outer rod 15 and an inner rod 16, the inner rod 16 is slidably nested inside the outer rod 15, the outer rod 15 passes through the through hole 12 of the lower end fixing plate 2, a threaded column 14 is fixedly disposed at the top of the outer rod 15, the radius of the threaded column 14 is smaller than that of the outer rod 15, the threaded column 14 passes through the through hole 12 of the upper end fixing plate 2, and the nut 3 is screwed on the threaded column 14, so that the compression bar 6 is fixed. The spring 8 is nested on the inner rod 16, thereby completing the compression.

The above-mentioned embodiments only represent the preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several changes, modifications and substitutions can be made, which are all within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a closing device of hydraulic piercing press, including fixed plate (2) and depression bar (6), the both sides in stamping frame (1) are fixed through fixing bolt (11) to fixed plate (2) symmetry, a serial communication port, stamping frame (1) one side is provided with two upper and lower fixed plate (2), vertical perforation (12) have been seted up on fixed plate (2), the inside setting and vertical depression bar (6) of perforation (12), bottom fixedly connected with briquetting (9) of depression bar (6), nested spring (8) have on depression bar (6) between fixed plate (2) of briquetting (9) and lower extreme, the bottom of briquetting (9) is provided with rubber layer (10).

2. The pressing device of a hydraulic punching machine according to claim 1, wherein the fixing plate (2) is of a plate-like structure having an L-shaped section.

3. The pressing device of the hydraulic punching machine according to claim 1 or 2, wherein the pressing rod (6) is slidably sleeved inside the through hole (12), the top of the pressing rod (6) is provided with a thread (4), and the nut (3) is in threaded connection with the top of the pressing rod (6).

4. The clamping device of a hydraulic punching machine according to claim 1, characterized in that a cushion washer (5) is nested on the pressure rod (6) below the nut (3).

5. The pressing device of the hydraulic punching machine according to claim 3, characterized in that the inner side wall of the through hole (12) is rotatably provided with a plurality of balls (13), the outer side wall of the pressing rod (6) is provided with a vertical ball groove (7), and the balls (13) are nested in the ball groove (7).

6. The pressing device of the hydraulic punching machine according to claim 1 or 2, wherein the pressing rod (6) comprises an outer rod (15) and an inner rod (16), the inner rod (16) is nested inside the outer rod (15) in a sliding mode, the outer rod (15) penetrates through the through hole (12) of the lower end fixing plate (2), the top of the outer rod (15) is fixedly provided with a threaded column (14), the threaded column (14) penetrates through the through hole (12) of the upper end fixing plate (2), the nut (3) is connected to the threaded column (14) in a threaded mode, and the spring (8) is nested on the inner rod (16).

7. The clamping device of a hydraulic punching machine according to claim 6, characterised in that the radius of the threaded stud (14) is smaller than the radius of the outer rod (15).