JP2002103099A - Pressure adjustment type press machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable complicated and high precision press working by individually adjusting respective punch operating pressures so as to adjust strength of pressing. SOLUTION: In a press machine C provided with plural punches 2 to a punch holder 1 and plural counters 20 to a die holder 10, pressure adjusting parts 5 are individually arranged to plural punches, the pressure adjustment type press machine is constituted so that respective pressure adjusting parts are individually adjusted, the pressures in the case of operating plural punches are individually adjusted. Respective punches, etc., are individually pressure adjusted in a course of operation. Complicated and high precision press working is conducted through a pressure adjustment.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure adjusting type press machine.

[0002]

2. Description of the Related Art Conventionally, in a transfer dress, a plurality of (each) punches and each counter are raised and lowered by the same pressure to pressurize (work) a material. Since it is impossible to change the pressure individually by applying pressure, for example, when raising and lowering the pressure, the pressure cannot be adjusted during the operation, or the pressure cannot be adjusted individually for each punch, etc. There is a problem. In addition, since the above adjustment cannot be performed, there are problems in that it is not suitable for press processing of a component having a complicated structure or a component to be processed on the entire material, and high precision press processing cannot be performed.

[0003] As a pressure-adjustable pressure machine, a hydraulic pump (Japanese Patent Application Laid-Open No. 8-108223) is described as Document (1), and
As the (2), a press machine (JP-A-10-180499) can be mentioned. This document (1) discloses a high-pressure small-flow circuit and a low-pressure large-flow circuit connected to a hydraulic cylinder via respective individual phones, and a low-pressure large-flow circuit at a position immediately before the punch hits a work according to the height of the ram. The flow path is switched from the pressure to the high-pressure small-flow circuit, and the immediately preceding position is determined from the plate thickness information and the current position information of the ram to reduce noise and vibration, and to reduce the size of the phone and drive motor. In addition, the cost of the apparatus can be reduced. Document (2) is a pressure machine configured to supply hydraulic oil to a hydraulic cylinder from a hydraulic horn and move the upper die up and down integrally with a ram. This hydraulic cylinder has a first area for a forward movement having a large area. A second cylinder chamber for forward movement having a small area, and a cylinder chamber for backward movement, and the upper die is lowered at high speed by supplying hydraulic oil to the second cylinder chamber. By supplying hydraulic oil to the first cylinder chamber, it is possible to simultaneously realize high-speed bending work and high-precision bending lowering, and to be able to lower the upper mold at low speed, to save resources. It is characterized by.

[0004]

The above-mentioned document (1) has a configuration in which a flow path is switched from a low-pressure large-flow circuit to a high-pressure small-flow circuit just before a punch hits a work. Therefore, it is impossible to adjust the pressure of each punch or each counter to adjust the strength of the processing, or it is possible to perform complicated and highly accurate press processing. Reference (2) also discloses that the hydraulic cylinder includes first and second cylinder chambers for forward and reverse movements having large and small areas, and cylinder chambers for backward movement, and supplies hydraulic oil to the second cylinder chamber. By supplying the oil, the upper die is lowered at a high speed, and the hydraulic oil is supplied to the first cylinder chamber. Therefore, it is impossible to adjust the pressure of each punch or each counter to adjust the strength of the processing, or it is possible to perform complicated and highly accurate press processing.

[0005]

According to the invention of claim 1, each punch is individually and individually adjusted in the course of the operation to individually perform pressure adjustment to perform complicated and high-precision press working, and to ensure a high-precision product. , Etc. are intended.

According to a first aspect of the present invention, in a press machine such as a transfer press or a press having a plurality of punches in a punch halter and a plurality of counters in a timer, the pressure adjusters are separately provided in the plurality of unchans. This is a pressure-adjustable pressure machine having a configuration in which each of the pressure adjusters is individually adjusted so that the pressure can be adjusted individually during the operation of the plurality of punches.

[0007] The invention of claim 2 is to adjust the pressure of each counter individually and in the middle of the operation to perform complicated and high-precision press processing, to reliably form a high-precision product,
And so on.

According to a second aspect of the present invention, in a press machine such as a transfer press or a press including a plurality of punches in a punch holter and a plurality of counters in a tie holter, pressure adjusters are individually provided in the plurality of counters. This is a pressure-adjustable pressure machine in which each pressure adjuster is individually pressure-adjusted so that the pressure can be adjusted individually when the plurality of counters operate.

According to a third aspect of the present invention, the pressure adjustment according to the first or second aspect is achieved by simple, precise and inexpensive means.

A third aspect of the present invention is a pressure adjusting type pressure machine in which the pressure adjusting section is an oil pressure device.

According to a fourth aspect of the present invention, the pressure adjustment according to the first or second aspect is achieved by simple, precise and inexpensive means.

A fourth aspect of the present invention is a pressure adjusting type pressure machine in which the pressure adjusting section is an air pressure device.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (1.) An example in which a pressure adjusting section is provided on a punch will be described.

A material is placed (installed) on each counter of a timer provided in a press machine such as a transfer press or a press. Thereafter, the punch halter is lowered (moved), and the blank is processed in each punch. At this time, various pressures can be adjusted in each punch, and simple and complicated processing can be performed reliably and accurately. An example of this pressure adjustment is as follows. At arbitrary positions at the time of pressure lowering and raising (operation), the punches can be individually or plurally moved via the pressure adjusting unit to operate at a constant pressurization. At arbitrary positions during the descent and rise of the press, the punch can be moved individually or a plurality of times via the pressure adjusting section and operated with variable pressurization (individually changing the manner of applying pressure). The pressure of the punch is pushed down at the bottom while receiving the pushing pressure (knockout force) and the pressure at the time of pressurization of the press, and the press at the top pushes the work to the counter at the bottom dead center. It is possible to actuate the pressure (Ty cushion force) up to the lower point) and adjust the pressure actuation individually. At the moving position of the punch of one press machine, the pressure adjuster can be operated by the combination of the punch using the punch.

(2.) An example in which a pressure adjusting unit is provided in the counter will be described.

The material is placed (installed) on each counter of the type holder provided in the press. Thereafter, the punch halter is lowered (moved), and the blank is processed in each punch. At this time, various pressure adjustments are possible in each counter,
From simple machining to complex machining, it can be performed reliably and accurately. An example of this pressure adjustment is as follows. At any position during the descent and rise (operation) of the press, each counter can be moved individually or a plurality of times via the pressure adjusting unit to operate at a constant pressurization. At any position during pressure lowering and rising, each counter can be individually or plurally moved through the pressure adjusting unit and operated with variable pressurization (individually changing the manner of applying pressure). The pressure of each counter is depressed at the lower part while receiving the pushing pressure (knockout force) and the pressure at the time of pressurization of the pressure machine. The pressure (die cushion force) can be operated up to the lowermost point), and the pressure operation can be individually adjusted. At each moving position of each punch of one press machine, the pressure adjusting section can be operated by using the combination of the counters.

[0017]

An embodiment of the present invention will be described below.

The present invention relates to a drawer B for winding a coil material A.
And transfer-file C or files C1 and C2 (including a vertical type, a left-right type, and a pair type) as main components.

In this transferless C (see FIGS. 1 and 2), an upper die (A) is provided with a punch halter 1 of the upper die (A) and a plurality of punches 2, 2,... Provided on the punch holter 1. (2), one or several knockout pins 3, 3,... (3) provided on the punch 2, and the knockout pin 3 wound around the knockout pin 3 is returned. Hane 4, 4,
... (4), and pressure adjusting units 5, 5, such as an oil pressure device, a pneumatic device, etc., which controls the descent and rise (up and down) of the punch 2
…… (5) The punch 2 of this upper model (a)
Ascend and descend individually and / or in conjunction with each other via the pressure adjusting unit 5,
In addition, the pressure can be freely adjusted during lifting and lowering. In addition, the lower die (B) is composed of a die holder (10) of the lower die (B), a plurality of counters 20, 20,... Knockout windows 30, 30, ... (30)
Panels 40, 40,... (Referred to as 40) for returning the knock-out pin 30 wound on the knock-out pin 30, an oil pressure device for controlling the ascending and descending (referred to as ascending and descending) of the counter 20, and pneumatic pressure It is composed of lifting means 50 such as a device. The counter 20 of the upper die (a) is individually and / or interlockedly moved up and down via a lifting means 50, and has a structure capable of freely adjusting the pressure at the time of lifting and lowering. In the drawing, reference numeral 6 denotes a control unit for controlling the pressure adjusting unit 5. Pressure adjustment unit 5
May be installed either inside or outside the upper and lower dies (a) and (b) .For example, the internal installation is useful for downsizing the machine, reducing noise, preventing dust, etc. This is useful for facilitating piping and is useful.

In the transferless C (see FIGS. 1 and 3), the upper die (a) is provided with a punch halter 1 of the upper die (a) and a plurality of punches 2, 2,... Provided on the punch holter 1. (2), one or several knockout pins 3, 3,... (3) provided on the punch 2, and the knockout pin 3 wound around the knockout pin 3 is returned. Hane 4, 4,
(4) and lifting means 7 such as an oil pressure device and a pneumatic device for lowering and raising (up and down) the punch 2. The punches 2 of the upper die (a) move up and down individually and / or in conjunction with each other via elevating means 7. Further, the lower die (B) is provided with a lower type (B) type halter 10 and a counter 2 provided with a plurality of
0, 20, ... (referred to as 20), one or several knockout pins 30, 30, ... (referred to as 30) provided in the counter 20, and the knockout wound around the knockout pin 30 Panels 40, 40, aiming for return of pin 30
(Referred to as 40) and pressure adjusting units 60 and 6 such as an oil pressure device, a pneumatic device, etc., which control raising and lowering (referred to as raising and lowering) of the counter 20.
0,... (60). This upper type (a) counter 20
Has a structure that can be raised and lowered individually and / or in conjunction with each other via a pressure adjusting unit 60, and that the pressure can be freely adjusted at the time of lifting and lowering.
In the drawing, reference numeral 70 denotes a control unit for controlling the pressure adjusting unit 60. Further, the pressure adjusting unit 5 may be installed inside or outside the upper and lower molds (a) and (b).
It is useful for preventing dust, etc., and it is useful for external installation because it facilitates maintenance management and piping.

The scrap material made of Transferless C or the like is as follows.
It is wound on a winding machine (not shown) or stored in a box.

FIG. 4 shows the configuration of the upper mold (a) and the lower mold (b) described for the transferless C in the examples of FIGS. 1 and 2 separately provided for each of the presses C1. An example is shown. In addition, FIG.
The upper mold (a) and the lower mold described in the transferless C in the example of FIG.
The configuration of (b) can be individually provided for one press (not shown).

[0023]

According to the first aspect of the present invention, in a press machine having a plurality of punches in a punch holter and a plurality of counters in a tie halter, pressure adjusters are individually provided in a plurality of punches, and each of the pressure adjusters is provided. This is a pressure-adjustable pressure machine having a configuration in which the pressure of each section is individually adjusted so that the pressure can be individually adjusted during the operation of a plurality of punches. Therefore, there is a feature that the pressure can be individually and individually adjusted during the operation of each punch to perform complicated and high-precision press working, and that a high-precision product can be reliably formed.

According to a second aspect of the present invention, in a press machine having a plurality of punches in a punch holter and a plurality of counters in a tie holter, pressure adjusters are individually provided in a plurality of counters, and each of the pressure adjusters is This is a pressure-adjustable pressure machine having a configuration in which pressure is individually adjusted and the pressure can be adjusted individually when a plurality of counters operate. Therefore, there is a feature that each counter is individually and individually adjusted during the operation to perform complicated and high-precision pressure processing, and that a high-precision product can be reliably formed.

A third aspect of the present invention is a pressure adjusting type pressure machine in which the pressure adjusting section is an oil pressure device. Therefore, the pressure adjustment of the pressure-adjustable pressure machine is achieved by simple, precise and inexpensive means.

A fourth aspect of the present invention is a pressure adjusting type pressure machine in which the pressure adjusting section is an air pressure device. Therefore, the pressure adjustment of the pressure-adjustable pressure machine is achieved by simple, precise and inexpensive means.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing an example of use of a pressure-adjustable pressure machine.

FIG. 2 is an enlarged side view of an example of the transferless machine.

FIG. 3 is an enlarged side view of another example of the transferless machine.

FIG. 4 is an enlarged side view of an example of another press machine.

[Description of symbols] Upper die Lower die 1 Punch holder 2 Punch 3 Knockout pin 4 Panel 5 Pressure adjustment unit 6 Control unit 7 Lifting unit 10 Type holder 20 Counter 30 Knockout pin 40 Panel 50 Lifting unit 60 Pressure adjustment unit 70 Control unit A Coil material B Extractor C Transfer transfer C1 press

Claims (4)

[Claims] 1. A transfer machine including a plurality of punches in a punch holter and a plurality of counters in a timer, and a pressure adjusting unit is provided in each of the plurality of hanks. A pressure-adjustable pressure machine having a configuration in which the adjusting sections are individually pressure-adjusted so that the pressures during operation of the plurality of punches can be individually adjusted. 2. A transfer machine, such as a transfer press or a press, which includes a plurality of punches in a punch holter and a plurality of counters in a timer, wherein pressure adjusters are individually provided in the plurality of counters. A pressure-adjustable pressure machine having a configuration in which an adjusting unit is individually pressure-adjusted so that pressures during operation of the plurality of counters can be individually adjusted. 3. The pressure-adjustable pressure machine according to claim 1, wherein the pressure-adjusting section is an oil pressure device. 4. The pressure-adjustable pressure machine according to claim 1, wherein said pressure-adjusting section is an air pressure device.