Safety protection structure of single-process punching machine for upper shell of gas meter

Abstract

The utility model discloses a gas meter upper shell single-process punch safety protection structure which comprises a punch, the punch is provided with a workbench and a punch head, the workbench is provided with a lower die base which is detachably installed, the bottom of the punch head is provided with an upper die base matched with the lower die base, and the upper die base is provided with a lower die base matched with the lower die base. The punching machine is provided with a PLC module used for controlling punching and resetting of the punching machine, the workbench is provided with a detection element arranged corresponding to the punching face of the lower die base, the detection element is in communication connection with the PLC module, and the detection element is used for detecting whether foreign matter exists on the punching face and an area above the punching face or not. By the adoption of the scheme, a punching dangerous area is mainly detected, the machine is stopped in time through the PLC module, the safety of an existing punching machine is greatly improved, and the punching machine is simple in structure, convenient to implement and extremely good in applicability.

Description

Technical Field

[0001] The utility model belongs to the field of gas meter production equipment, and in particular relates to a safety protection structure of a single-process punch press for an upper shell of a gas meter. Background Art

[0002] Gas meters are widely used in daily life and manufacturing industries to accumulate natural gas usage. The bottom plate is one of the parts of the meter body. In order to install the bottom plate, it is usually necessary to stamp the installation area on the side of the upper shell of the gas meter. In the prior art, the upper shell is placed on the lower die seat with the side facing up for stamping. In order to ensure the accuracy of the position, manual auxiliary product positioning is usually required, that is, the upper shell is pressed manually to prevent it from tilting. Due to the narrow position, the operator's fingers can easily enter the stamping danger zone, thus causing production safety accidents. Therefore, it is urgent to solve this problem to protect workers from harm. Utility Model Content

[0003] In view of this, the utility model provides a gas meter upper shell single-process punch safety protection structure to solve the problem in the prior art that the punching operation of the gas meter upper shell is unsafe and easily causes safety accidents.

[0004] The technical solution is as follows:

[0005] A safety protection structure for a single-process punch press for the upper shell of a gas meter comprises a punch press having a workbench and a punch head, wherein the workbench is provided with a lower die seat installed in a detachable manner, and the bottom of the punch head is provided with an upper die seat adapted to the lower die seat, and the punch press is provided with a PLC module for controlling its punching and resetting. The key point is that: the workbench is provided with a detection element arranged corresponding to the stamping surface of the lower die seat, the detection element is communicatively connected with the PLC module, and the detection element is used to detect whether there are foreign objects on the stamping surface and the area above.

[0006] With the above solution, if foreign objects such as fingers or tools enter the dangerous stamping area during the operation of the punch press, the PLC module can control the punch press to stop, thereby protecting the staff from injury or avoiding product scrapping.

[0007] As a preferred embodiment, the detection element is communicatively connected with an alarm element. The above solution can be used to alert the punch press when it stops, thus avoiding repeated violations.

[0008] Preferably, the detection element is a fiber optic sensor, and the fiber optic sensor has a transmitting unit and a receiving unit respectively located on the left and right sides of the lower mold base.

[0009] As a preferred embodiment: the transmitting unit and the receiving unit are both supported on the workbench by a sensor seat, the sensor seat includes a base and a fixing rod vertically arranged on the base, the fixing rod has a mounting bracket that is slidably matched with the fixing rod, the mounting bracket is fixed to the fixing rod by a locking screw A, and the transmitting unit and the receiving unit are installed on the corresponding mounting bracket. With the above solution, the height of the transmitting unit and the receiving unit can be adjusted as needed, that is, different detection areas can be adjusted to achieve the best position, which has better adaptability.

[0010] As a preferred embodiment, the workbench has a slide groove arranged along the front-rear direction thereof, and the bottom of the base has a sliding matching part matched with the slide groove. With the above solution, the position of the sensor seat can be adjusted front and back to adapt to upper shells of different models, with better adaptability.

[0011] As a preferred embodiment, the slide groove is an inverted T-shaped slide groove, and the base is provided with a locking screw B arranged downward. By adopting the above solution, the stability of the sensor seat can be ensured.

[0012] In order to improve the convenience of disassembly and assembly of the sensor seat, the base is magnetic and is magnetically attracted to the workbench.

[0013] As a preference: the position on the workbench corresponding to the sensor seat has an alignment line arranged along the front-rear direction thereof. With the above solution, the transmitting unit and the receiving unit can be quickly aligned, thus improving the efficiency of installation and debugging.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The gas meter upper shell single-process punch safety protection structure provided by the utility model mainly detects the punching danger area and shuts down the machine in time through the PLC module, which greatly improves the safety of the existing punch. The structure is simple, easy to implement and has excellent applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 for Figure 1 A partial enlarged view of the middle part;

[0018] Figure 3 for Figure 1 Front view;

[0019] Figure 4 This is a schematic diagram of the sensor seat structure. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0021] refer to Figures 1 to 4 The gas meter upper shell single-process punch safety protection structure shown mainly includes a punch 1. As shown in the figure, the punch 1 has a workbench 10 and a punch head 11, wherein the workbench 10 has a lower die base 2 installed in a detachable manner, and the bottom of the punch head 11 has an upper die base 3 adapted to the lower die base 2. The punch 1 has a PLC module for controlling its stamping and resetting. The key to this solution is that the workbench 10 has a detection element arranged on the stamping surface corresponding to the lower die base 2, and the detection element is communicatively connected with the PLC module. The detection element is used to detect whether there are foreign objects on the stamping surface and the upper area. In other words, it is to detect whether foreign objects enter the stamping danger area.

[0022] In this embodiment, the detection element is preferably a fiber optic sensor, which has relatively better detection accuracy and feedback speed. The fiber optic sensor has a transmitting unit 7 and a receiving unit 4 respectively located on the left and right sides of the lower die base 2. When a foreign object enters the dangerous area of ​​stamping, the light emitted by the transmitting unit 7 is blocked and cannot be normally reflected by the receiving unit. The signal can be fed back to the PLC module, and the emergency shutdown of the punching machine is achieved through the PLC module. The punch head stays at the top dead center, thereby avoiding production safety accidents. In specific implementation, the Keyence FU-A40 fiber optic sensor is preferably used, which has good environmental hygiene adaptability, and the optical axis adjustment is relatively simple, which is convenient for single-person installation.

[0023] As shown in the figure, in order to improve the disassembly and assembly efficiency and position adaptability of the detection element, the transmitting unit and the receiving unit are supported on the workbench 10 through the sensor seat 5. Specifically, the sensor seat 5 includes a base 50 and a fixing rod 51 vertically arranged on the base 50, and the fixing rod 51 has a mounting bracket 6 that slides with it. The mounting bracket 6 is slidably mounted on the fixing rod 51 and fixed to the fixing rod 51 by a locking screw A60. The mounting bracket 6 has a sheet-like extension portion, and the transmitting unit 7 and the receiving unit 4 are installed on the corresponding sheet-like extension portions of the mounting bracket 6.

[0024] The workbench 10 has a slide groove 12 arranged along the front-to-back direction thereof, and the bottom of the base 50 has a sliding matching portion 52 that cooperates with the slide groove 12. The slide groove 12 is an inverted T-shaped slide groove, and the base 50 has a locking screw B53 arranged downward. As shown in the figure, the base 50 has ears on both sides, and the locking screw B53 is penetrated on the ears and cooperates with the ears. After the base 50 slides into place, the locking screw B53 is tightened to tighten the base 50 upward. Combined with the structure of the mounting bracket 6, the detection element can be adjusted in the front-to-back direction and the height direction at the same time to meet the changing needs of the stamping danger area, and the adjustment is convenient and quick.

[0025] In addition to the above-mentioned fixing method using the locking screw B53, a magnetic fixing method can also be used, that is, the base 50 is magnetic, that is, the bottom of the base 50 has a permanent magnet or a built-in solenoid valve, etc., which can be directly magnetically attracted to the workbench 10.

[0026] In addition, in order to further improve the optical axis adjustment and alignment efficiency of the transmitting unit and the receiving unit in this embodiment, the positions corresponding to the sensor seat 5 on the workbench 10 are provided with alignment lines 13 set along the front and rear directions thereof, so that the optical axis can be quickly aligned with the alignment lines 13 as a reference.

[0027] In specific implementation, the detection element is communicatively connected with an alarm element, which is usually an audible and visual alarm and can also be directly connected to a PLC module. When the detection element detects a dangerous stamping area, the punch press stops and sends out an alarm signal, which can further improve operational safety.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make a variety of similar expressions without violating the purpose and claims of the present invention, and such changes fall within the scope of protection of the present invention.

Claims

1. A gas meter upper shell single-process punch press safety protection structure, comprising a punch press (1), the punch press (1) having a workbench (10) and a punch head (11), wherein the workbench (10) has a lower die seat (2) installed in a detachable manner, and the bottom of the punch head (11) has an upper die seat (3) adapted to the lower die seat (2), the punch press (1) has a PLC module for controlling its punching and resetting, and is characterized in that: The workbench (10) has a detection element arranged corresponding to the stamping surface of the lower die base (2), the detection element is communicatively connected with the PLC module, and the detection element is used to detect whether there are foreign objects on the stamping surface and the area above it.

2. According to claim 1, the safety protection structure of the single-process punch press for the upper shell of the gas meter is characterized in that: The detection element is communicatively connected with an alarm element.

3. The gas meter upper shell single-process punching machine safety protection structure according to claim 1 or 2, characterized in that: The detection element is an optical fiber sensor, which comprises a transmitting unit (7) and a receiving unit (4) respectively located on the left and right sides of the lower mold base (2).

4. The gas meter upper shell single-process punching machine safety protection structure according to claim 3 is characterized by: The transmitting unit and the receiving unit are both supported on a workbench (10) via a sensor seat (5); the sensor seat (5) comprises a base (50) and a fixing rod (51) vertically arranged on the base (50); the fixing rod (51) has a mounting bracket (6) slidably matched therewith; the mounting bracket (6) is fixed to the fixing rod (51) via a locking screw A (60); the transmitting unit (7) and the receiving unit (4) are mounted on the corresponding mounting brackets (6).

5. The gas meter upper shell single-process punching machine safety protection structure according to claim 4 is characterized in that: The workbench (10) has a slide groove (12) arranged along the front-rear direction thereof, and the bottom of the base (50) has a sliding portion (52) that matches the slide groove (12).

6. The gas meter upper shell single-process punching machine safety protection structure according to claim 5 is characterized by: The slide groove (12) is an inverted T-shaped slide groove, and the base (50) is provided with a locking screw B (53) arranged downward.

7. The gas meter upper shell single-process punching machine safety protection structure according to claim 4 is characterized by: The base (50) is magnetic and is magnetically attracted to the workbench (10).

8. The gas meter upper shell single-process punching machine safety protection structure according to claim 4 is characterized by: The position on the workbench (10) corresponding to the sensor seat (5) has an alignment line (13) arranged along the front-rear direction thereof.

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