CN212703886U

CN212703886U - Device for measuring side pressure of stamping die

Info

Publication number: CN212703886U
Application number: CN202021593025.4U
Authority: CN
Inventors: 蔡芳中; 周斌
Original assignee: Zhejiang Chuandian Steel Plate Processing Co ltd
Current assignee: Zhejiang Chuandian Steel Plate Processing Co ltd
Priority date: 2020-08-04
Filing date: 2020-08-04
Publication date: 2021-03-16
Anticipated expiration: 2030-08-04

Abstract

The utility model discloses a device for stamping die side pressure survey, including testboard, hydraulic jack, pressure sensor, pressure display and a plurality of pressure measurement module, hydraulic jack includes hydraulic pump and hydraulic cylinder, hydraulic cylinder sets up the top at the testboard through spaning the portal frame who fixes on the testboard, pressure sensor sets up at hydraulic cylinder's top, just pressure sensor and pressure display electricity signal connection, every pressure measurement module's shape and size all with the stamping die's that awaits measuring corresponding die cavity looks adaptation. By adopting the device of the utility model, the side pressure between each cavity of the stamping die and the product can be conveniently and accurately measured, the problems of punch tipping, die cracking, product galling and the like can be effectively avoided, the maintenance cost of the stamping die can be obviously reduced, and the product percent of pass can be effectively improved; in addition, the utility model discloses still have simple structure, workable, application scope advantage such as wide.

Description

Device for measuring side pressure of stamping die

Technical Field

The utility model relates to a device for stamping die side pressure survey belongs to mechanical technical field.

Background

Stamping is a press working method in which a die mounted on a press is used to apply pressure to a material at room temperature to cause separation or plastic deformation of the material, thereby obtaining a desired part. If the applied pressure is too large, the problems of punch tipping, die cracking, too large side pressure (namely, force for screwing the product) of the die to the product and the like can be caused, so that the die loss is large, the maintenance cost is very high, and particularly, the product can be knocked out by using very large force, on one hand, the product is scratched to generate unqualified waste products, on the other hand, other incidental damage to the die can be generated, and the safety of personnel is influenced; if the pressure is too small, the riveting strength of the product is insufficient, and unqualified products are also generated; therefore, before each product is processed by punching, the magnitude of the side pressure of the punching die needs to be determined by testing in advance. In addition, after the stamping die is used for a certain period of time, foreign matters may remain in the die cavity, the inner wall of the die cavity is abraded, and the like, so that the yield of the stamping product and the damage to the female die and the punch are affected, therefore, after the stamping die is produced for a certain period of time, the stamping die is generally required to be maintained and maintained, and whether the lateral pressure between the female die and the product is still proper or not is determined through retest.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned problem and the demand that prior art exists, the utility model aims at providing a device that is used for stamping die side pressure survey of ability convenient, accurate survey stamping die side pressure, for the maintenance of confirming stamping die's side pressure size and stamping die provides convenient way and scientific foundation.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the device for measuring the side pressure of the stamping die comprises a test board, a hydraulic jack, a pressure sensor, a pressure display and a plurality of pressure measuring modules, wherein the hydraulic jack comprises a hydraulic pump and a hydraulic oil cylinder, the hydraulic oil cylinder is arranged above the test board by crossing a gantry support fixed on the test board, the pressure sensor is arranged at the top of the hydraulic oil cylinder and is in electrical signal connection with the pressure display, and the shape and the size of each pressure measuring module are matched with the corresponding cavity of the stamping die to be measured.

According to the embodiment, the test board is composed of a support frame and a bearing plate, the bearing plate is fixedly arranged above the support frame, and the gantry support is fixedly connected with the bearing plate.

In a preferred scheme, the test bench is provided with a horizontal moving mechanism.

In one embodiment, the horizontal moving mechanism is two roller type sliding rails which are embedded on the bearing plate and arranged in parallel.

In one embodiment, the hydraulic jack is a split hydraulic jack.

In one embodiment, the hydraulic pump is a hand pump.

In a further embodiment, the hydraulic pump is fixed on the test stand.

According to a preferable scheme, a beam of the gantry support is provided with a linear transmission mechanism for driving the hydraulic oil cylinder to move left and right.

According to a preferred scheme, the longitudinal beams on the two sides of the gantry support are longitudinal beams capable of ascending and descending up and down.

Compared with the prior art, the utility model has the advantages of:

by adopting the device of the utility model, the side pressure between each cavity of the stamping die and the product can be conveniently and accurately measured, the problems of punch tipping, die cracking, product galling and the like can be effectively avoided, the maintenance cost of the stamping die can be obviously reduced, and the product percent of pass can be effectively improved; additionally, the utility model discloses still have advantages such as simple structure, workable, application scope are wide, consequently, for prior art, the utility model has obvious practical value and progressive, be worth popularizing and applying.

Drawings

Fig. 1 is a schematic perspective view of an apparatus for measuring a lateral pressure of a stamping die according to an embodiment of the present invention;

FIG. 2 is a schematic view of the apparatus shown in FIG. 1 in a measuring operation state;

fig. 3 is a partially enlarged schematic view of fig. 2.

The numbers in the figures are as follows: 1. a test bench; 11. a support frame; 12. a bearing plate; 13. a horizontal movement mechanism; 2. a hydraulic jack; 21. a hydraulic pump; 22. a hydraulic cylinder; 3. a pressure sensor; 4. a pressure display; 5. a pressure measuring module; 6. a gantry support; 61. a cross beam; 62. a linear transmission mechanism; 63. a stringer; 7. a stamping die to be tested; 71. a mold cavity.

Detailed Description

The technical solution of the present invention will be described in detail and fully with reference to the accompanying drawings and examples.

Examples

Referring to fig. 1 to 3, the device for measuring the lateral pressure of the stamping die provided in this embodiment includes a test bench 1, a hydraulic jack 2, a pressure sensor 3, a pressure display 4, and a plurality of pressure measuring modules 5, where the hydraulic jack 2 includes a hydraulic pump 21 and a hydraulic cylinder 22, the hydraulic cylinder 22 is disposed above the test bench 1 by a gantry bracket 6 fixed across the test bench 1, the pressure sensor 3 is disposed on the top of the hydraulic cylinder 22, the pressure sensor 3 is in electrical signal connection (may be connected by a data line or wirelessly) with the pressure display 4, and the shape and size of each pressure measuring module 5 are adapted to a corresponding cavity 71 of the stamping die 7 to be measured.

In this embodiment:

the test bench 1 is composed of a support frame 11 and a bearing plate 12, the bearing plate 12 is fixedly arranged above the support frame 11, and the gantry support 6 is fixedly connected with the bearing plate 12.

The test bench 1 is provided with a horizontal moving mechanism 13 so as to facilitate the movement of the stamping die 7 to be tested on the test bench 1; in this embodiment, the horizontal moving mechanism 13 is two roller-type sliding rails embedded on the bearing plate 12 and arranged in parallel, but is not limited to this structure, and may be an automatic conveyor structure.

The hydraulic jack 2 is a separate hydraulic jack, the hydraulic pump 21 is installed on the test platform 1 (in this embodiment, installed on the bearing plate 12 of the test platform 1), and the hydraulic pump 21 in this embodiment is a hand pump, which has the advantage of low cost; the hydraulic oil cylinder 22 is connected with the gantry support 6; in order to facilitate the adjustment of the corresponding position of the hydraulic cylinder and the test cavity, in this embodiment, a beam 61 of the gantry support 6 is provided with a linear transmission mechanism 62 for driving the hydraulic cylinder 22 to move left and right, and the linear transmission mechanism 62 may adopt the existing mature technologies such as an electric push rod mechanism, a lead screw nut mechanism, a sprocket chain structure, and the like, and is not described herein again. In addition, the longitudinal beams 63 on the two sides of the gantry support 6 are longitudinal beams capable of lifting up and down, so that the vertical height of the hydraulic oil cylinder 22 can be conveniently adjusted.

Referring to fig. 2 and 3, the working process of measuring the lateral pressure of the stamping die by using the device of the present invention is as follows:

firstly, the stamping die 7 to be tested moves back and forth along the horizontal moving mechanism 13 on the bearing plate 12, the hydraulic oil cylinder 22 moves left and right under the drive of the linear transmission mechanism 62 and moves up and down of the longitudinal beams 63 on the two sides of the gantry support 6, so that the position of the cavity 71 to be tested is just right below the hydraulic oil cylinder 22, then the pressure measuring module 5 which is matched with the shape and the size of the cavity 71 to be tested is placed right above the cavity 71, impact pressure is applied to the hydraulic oil cylinder 22 through the hydraulic oil pump 21, the pressure measuring module 5 is pressed into the cavity 71 to be tested through the hydraulic oil cylinder 22, the applied impact pressure can be transmitted to the pressure display 4 through the pressure sensor 3 positioned at the top of the hydraulic oil cylinder 22, and therefore the stamping size at this time can be intuitively and accurately known; through the outward appearance of the pressure measuring module 5 after the observation punching press, can know the most suitable side pressure scope of punching press article to, in later maintenance, only need carry out size comparison with the side pressure value of test and normal side pressure value, can carry out corresponding maintenance processing, for example: if the tested side pressure value is much larger than the normal side pressure value, probably because the cavity is blocked by foreign matters, the cavity needs to be cleaned; if the measured side pressure value is much smaller than the normal side pressure value, which may be due to wear of the inner wall of the cavity, the replacement process of the press mold is required.

In conclusion, by adopting the device of the utility model, the side pressure between each cavity of the stamping die and the product can be conveniently and accurately measured, the problems of punch tipping, die cracking, product galling and the like can be effectively avoided, the maintenance cost of the stamping die can be obviously reduced, and the product percent of pass can be effectively improved; additionally, the utility model discloses still have advantages such as simple structure, workable, application scope are wide, consequently, for prior art, the utility model has obvious practical value and progressive, be worth popularizing and applying.

It is finally necessary to point out here: the above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides an apparatus for stamping die side pressure survey which characterized in that: the device comprises a test board, a hydraulic jack, a pressure sensor, a pressure display and a plurality of pressure measuring modules, wherein the hydraulic jack comprises a hydraulic pump and a hydraulic oil cylinder, the hydraulic oil cylinder is arranged above the test board by crossing a gantry support fixed on the test board, the pressure sensor is arranged at the top of the hydraulic oil cylinder and is in electric signal connection with the pressure display, and the shape and the size of each pressure measuring module are matched with a corresponding cavity of a stamping die to be tested.

2. The apparatus of claim 1, wherein: the test bench comprises a support frame and a bearing plate, the bearing plate is fixedly arranged above the support frame, and the gantry support is fixedly connected with the bearing plate.

3. The apparatus of claim 2, wherein: the test bench is provided with a horizontal moving mechanism.

4. The apparatus of claim 3, wherein: the horizontal moving mechanism is two roller type sliding rails which are embedded on the bearing plate and arranged in parallel.

5. The apparatus of claim 1, wherein: the hydraulic jack is a separated hydraulic jack.

6. The apparatus of claim 1, wherein: the hydraulic pump is a hand pump.

7. The apparatus of claim 6, wherein: the hydraulic pump is fixed on the test board.

8. The apparatus of claim 1, wherein: a beam of the gantry support is provided with a linear transmission mechanism for driving the hydraulic oil cylinder to move left and right.

9. The apparatus of claim 1 or 8, wherein: the longitudinal beams on the two sides of the gantry support are longitudinal beams capable of lifting up and down.