Tapping device for meter shell of gas meter

Abstract

The utility model relates to the technical field of gas meter shell machining equipment, in particular to a gas meter shell trepanning device. The punching device comprises a punching assembly, and the punching assembly comprises a mounting part, a first punch, a second punch and a lifting mechanism for driving the mounting part to ascend and descend; the mounting part is driven to descend through the lifting mechanism, and meanwhile the gas meter shell below the mounting part is punched through the first punch and the second punch; the first punch is fixed on the mounting piece, and the second punch can slide, so that the distance between the first punch and the second punch is adjusted; tool replacement or repeated positioning is not needed, and the production efficiency is remarkably improved; compared with traditional double-punch equipment with a fixed interval, the device reduces the requirements for multiple sets of equipment, and the production cost is reduced; according to the scheme, only the second punch can slide, only the position of the second punch needs to be adjusted during operation, the machine adjusting time is shortened, the number of moving parts can be reduced, and the stability of long-term use of the device is higher.

Description

Technical Field

[0001] This utility model relates to the technical field of gas meter housing processing equipment, and in particular to a gas meter housing opening device. Background Technology

[0002] A gas meter is a tool for measuring household gas consumption. The gas meter casing is usually composed of two encapsulated casings, upper and lower. There are two openings on the top of the upper casing of the gas meter, which connect to the gas inlet and gas outlet connectors. The gas inlet and gas outlet connectors are connected to the gas inlet pipe and gas outlet pipe of the gas pipeline, respectively. During metering, gas enters from the gas inlet connector and flows out from the gas outlet connector, thereby driving the roller counter to calculate the gas consumption.

[0003] In existing technologies, when processing gas meter housings, two punches are typically used to create two openings (an outlet interface and an inlet interface). However, due to regional differences, installation environment, or other factors, the distance between the inlet and outlet pipes of the gas pipeline varies. Therefore, gas meter housings need to be manufactured with different hole spacings according to requirements. Existing hole-opening devices typically use a single-punch structure, requiring repeated positioning or tooling changes when processing two holes, resulting in low efficiency and easy accumulation of positioning errors. While some dual-punch devices can process two holes simultaneously, the distance between the two punches is fixed, requiring multiple hole-opening devices to process different tool housings, leading to high production costs.

[0004] Based on this, the applicant is considering designing a gas meter housing opening device that can be flexibly adjusted. Utility Model Content

[0005] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is: how to provide a gas meter housing opening device that can be flexibly adjusted.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A gas meter casing opening device includes a drilling assembly, the drilling assembly including a mounting component, a first punch, a second punch, and a lifting mechanism for driving the mounting component to rise and fall.

[0008] The first punch is fixedly connected to the mounting component, and the second punch is slidably connected to the mounting component to adjust the distance between the first punch and the second punch.

[0009] The working principle and advantages of the gas meter casing opening device in this technical solution are as follows:

[0010] During the drilling process, the gas meter housing to be processed is placed below the drilling assembly. The mounting component is lowered by a lifting mechanism, while the first and second punches punch holes in the gas meter housing below. The first punch is fixed to the mounting component, while the second punch can slide, thereby adjusting the distance between the first and second punches. This allows the device to adapt to gas meter housings of different sizes and meet the requirements of different hole spacings. It eliminates the need to change tooling or repeatedly reposition, significantly improving production efficiency. Compared to traditional fixed-spacing dual-punch equipment, this device reduces the need for multiple sets of equipment, lowering production costs. Furthermore, in this solution, only the second punch can slide; during operation, only the position of the second punch needs to be adjusted, shortening setup time and reducing the number of moving parts, resulting in higher stability during long-term use.

[0011] Furthermore, the mounting component includes an upper mounting plate and a lower mounting plate that are fixedly connected and spaced apart. The edges of the upper mounting plate and the lower mounting plate have corresponding sliding notches, and the second punch is slidably disposed within the sliding notches.

[0012] Furthermore, a connecting cylinder located within the sliding notch is fixedly connected to the outer wall of the second punch, and a sliding support block located between the upper mounting plate and the lower mounting plate is fixedly connected to the outer wall of the connecting cylinder; a fastening nut that abuts against the top side of the upper mounting plate or the bottom side of the lower mounting plate is threadedly connected to the outer wall of the top or bottom end of the connecting cylinder.

[0013] Furthermore, the fastening nut includes an extension support plate provided on the outer side wall, and a lever block is provided on the side of the extension support plate opposite to the upper mounting plate or the lower mounting plate. An elastic pad is tightly attached to the side of the fastening nut that abuts against the upper mounting plate or the lower mounting plate.

[0014] Furthermore, the connecting cylinder is threaded with fastening nuts at both its top and bottom ends.

[0015] Furthermore, the upper mounting plate or the lower mounting plate has distance markings on its sidewall, and the sliding block has alignment markings corresponding to the distance markings on its sidewall.

[0016] Furthermore, the punching assembly also includes multiple fixedly installed limiting rods, and the mounting component is provided with multiple limiting holes for the limiting rods to pass through. The bottom end of the limiting rod is fixedly connected to a placement seat located below the first punch and the second punch, and the top side of the placement seat is provided with a placement groove for placing the gas meter housing.

[0017] Furthermore, the placement groove is provided with a support block for the gas meter casing to be fitted onto it, and the top side of the support block is provided with an avoidance hole located directly below the first punch and an avoidance groove located directly below the second punch.

[0018] Furthermore, the telescopic end of the lifting mechanism is fixedly connected to the mounting component.

[0019] Furthermore, it also includes a frame on which the punching assembly is mounted. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the gas meter housing opening device according to an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the formal structure of the gas meter housing opening device according to an embodiment of the present utility model;

[0022] Figure 3 This is a three-dimensional structural diagram of the punching component according to an embodiment of the present utility model. Figure 1 (Except for the lifting mechanism);

[0023] Figure 4 This is a three-dimensional structural diagram of the punching component according to an embodiment of the present utility model. Figure 2 (Except for the lifting mechanism);

[0024] Figure 5 This is a front view of the punching assembly (excluding the lifting mechanism) according to an embodiment of the present utility model.

[0025] Figure 6 This is a three-dimensional structural diagram of the mounting component according to an embodiment of the present utility model;

[0026] Figure 7 This is a three-dimensional structural diagram of the connecting cylinder and fastening nut according to an embodiment of the present utility model;

[0027] Figure 8 This is a three-dimensional structural diagram of the fastening nut according to an embodiment of the present utility model;

[0028] Figure 9 This is a three-dimensional structural diagram of the placement seat and limiting rod according to an embodiment of the present utility model;

[0029] In the above attached figures:

[0030] 100. Rack;

[0031] 200. Drilling assembly; 210. Placement base; 211. Limiting rod; 212. Support block; 2121. Clearance hole; 2122. Clearance groove; 220. Lifting mechanism;

[0032] 230. Mounting component; 231. Upper mounting plate; 232. Lower mounting plate; 233. Restriction hole; 234. Mounting notch; 235. Sliding notch; 236. Distance mark;

[0033] 310. First punch; 320. Second punch;

[0034] 400. Connecting cylinder; 410. Sliding block; 411. Alignment mark; 420. Fastening nut; 421. Extension plate; 4211. Actuating block; 422. Elastic pad. Detailed Implementation

[0035] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0036] Refer to together Figures 3-9 This embodiment provides a gas meter casing opening device, including a drilling assembly 200, which includes a mounting component 230, a first punch 310, a second punch 320, and a lifting mechanism 220 for driving the mounting component 230 to rise and fall.

[0037] The first punch 310 is fixedly connected to the mounting part 230, and the second punch 320 is slidably connected to the mounting part 230 to adjust the distance between the first punch 310 and the second punch 320.

[0038] In this embodiment, during drilling, the gas meter housing to be processed is placed below the drilling assembly 200. The mounting component 230 is lowered by the lifting mechanism 220, and simultaneously, the first punch 310 and the second punch 320 punch holes in the gas meter housing below. The first punch 310 is fixed to the mounting component 230, while the second punch 320 can slide, thereby adjusting the distance between the first punch 310 and the second punch 320. This allows the device to adapt to gas meter housings of different specifications and meet the requirements of different hole spacings. It eliminates the need to change tooling or repeatedly position the device, significantly improving production efficiency. Compared to traditional fixed-spacing dual-punch equipment, this device reduces the need for multiple sets of equipment, lowering production costs. Furthermore, in this solution, only the second punch 320 can slide; during operation, only the position of the second punch 320 needs to be adjusted, shortening setup time and reducing the number of moving parts, resulting in higher stability during long-term use.

[0039] Preferably, such as Figures 3-6As shown, the mounting component 230 includes an upper mounting plate 231 and a lower mounting plate 232 that are fixedly connected and spaced apart. The edges of the upper mounting plate 231 and the lower mounting plate 232 have corresponding sliding notches 235, and the second punch 320 is slidably disposed within the sliding notches 235. The upper mounting plate 231 and the lower mounting plate 232 are fixedly connected and spaced apart to form a stable frame structure. The edges of the upper mounting plate 231 and the lower mounting plate 232 have corresponding sliding notches 235, and the second punch 320 is slidably disposed within the sliding notches 235. Sliding the second punch 320 can change the distance between the first punch 310 and the second punch 320. Specifically, the edges of the upper mounting plate 231 and the lower mounting plate 232 also have mounting notches 234, and the first punch 310 is detachably mounted at the mounting notch 234 by bolts or other structures, which facilitates the replacement and maintenance of the first punch 310.

[0040] Preferably, such as Figures 3-8 As shown, a connecting cylinder 400 located within a sliding notch 235 is fixedly connected to the outer wall of the second punch 320. A sliding support block 410 located between the upper mounting plate 231 and the lower mounting plate 232 is fixedly connected to the outer wall of the connecting cylinder 400. A fastening nut 420 is threadedly connected to the outer wall of the top or bottom end of the connecting cylinder 400, which abuts against the top side of the upper mounting plate 231 or the bottom side of the lower mounting plate 232. The second punch 320 is connected to the sliding support block 410 through the connecting cylinder 400. The sliding support block 410 is located in the gap between the upper mounting plate 231 and the lower mounting plate 232, allowing the connecting cylinder 400 and the second punch 320 therein to slide stably within the sliding notch 235. A fastening nut 420 is threadedly connected to the outer wall of the top or bottom end of the connecting cylinder 400. By rotating the fastening nut 420, it can be adjusted... The second punch 320 is fixed in position by contacting the top side of the upper mounting plate 231 or the bottom side of the lower mounting plate 232. By sliding the second punch 320 and fixing it with the fastening nut 420, the distance between the first punch 310 and the second punch 320 can be flexibly adjusted to meet the requirements of different hole spacings. The combined design of the sliding block 410 and the fastening nut 420 allows the second punch 320 to slide flexibly and stably while being stably fixed, ensuring processing accuracy. At the same time, it is easy to disassemble and maintain, and components can be quickly replaced or adjusted. Specifically, the sliding notch 235 is a strip-shaped notch, and the outer wall of the connecting cylinder 400 abuts against the inner wall of the sliding notch 235, allowing the second punch 320 to slide stably laterally. With the help of the sliding block 410, the second punch 320 can be prevented from shifting during the sliding process.

[0041] Preferably, such as Figures 3-8As shown, both the top and bottom ends of the connecting cylinder 400 are threaded with fastening nuts 420. Each fastening nut 420 includes an extension support plate 421 on its outer side wall. A lever block 4211 protrudes from the side of the extension support plate 421 opposite to the upper mounting plate 231 or lower mounting plate 232. An elastic pad 422 is tightly abutted against the side of the fastening nut 420 that abuts against the upper mounting plate 231 or lower mounting plate 232. Both the top and bottom ends of the connecting cylinder 400 are threaded with fastening nuts 420. By rotating the fastening nuts 420, both sides abut against the top side of the upper mounting plate 231 and the bottom side of the lower mounting plate 232, respectively, reinforcing the first punch 310. The installation and fixing effect of the second punch 320; an extension support plate 421 is provided on the outer side wall of the fastening nut 420, and a lever block 4211 is provided on the side of the extension support plate 421 facing away from the upper mounting plate 231 or the lower mounting plate 232, so that the operator can quickly turn and rotate the fastening nut 420 by hand, wrench or other tools; an elastic pad 422 is closely attached to the side of the fastening nut 420 that abuts against the upper mounting plate 231 or the lower mounting plate 232, and the elastic pad 422 can provide cushioning to ensure a tighter contact between the fastening nut 420 and the upper mounting plate 231 and the lower mounting plate 232, and prevent loosening.

[0042] Preferably, such as Figures 3-7 As shown, the upper mounting plate 231 or the lower mounting plate 232 has a distance mark 236 on its side wall, and the sliding block 410 has an alignment mark 411 corresponding to the distance mark 236 on its side wall. The distance mark 236 can display the axial distance between the first punch 310 and the second punch 320 (i.e., the axial distance between the two openings on the case after machining). The alignment mark 411 on the sliding block 410 corresponds to the axis on the second punch 320, so that the operator can quickly align with the required distance mark 236 and quickly determine the position of the second punch 320.

[0043] Preferably, such as Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 9As shown, the drilling assembly 200 also includes multiple fixedly installed limiting rods 211. The mounting component 230 has multiple limiting holes 233 through which the limiting rods 211 pass. The bottom end of each limiting rod 211 is fixedly connected to a placement seat 210 located below the first punch 310 and the second punch 320. The top side of the placement seat 210 has a placement groove for placing the gas meter housing. The limiting rods 211 pass through the limiting holes 233, ensuring that the mounting component 230 can only move up and down along the limiting rods 211, thereby limiting the upward and downward movement trajectory of the mounting component 230, reducing processing errors caused by shaking, and improving drilling accuracy. Specifically, the limiting holes 233 are located at the four corners of the upper mounting plate 231 and the lower mounting plate. The bottom end of each limiting rod 211 is fixedly connected to the placement seat 210, and the placement groove of the placement seat 210 ensures that the gas meter housing remains stable during processing, preventing displacement and ensuring drilling accuracy and quality.

[0044] Preferably, such as Figure 3 , Figure 4 , Figure 5 and Figure 9 As shown, a support block 212 is provided in the placement groove for the gas meter housing to be fitted onto. The top side of the support block 212 has an avoidance hole 2121 located directly below the first punch 310 and an avoidance groove 2122 located directly below the second punch 320. The support block 212 can provide internal support for the gas meter housing, preventing deformation and damage to the gas meter housing during processing. The avoidance hole 2121 can avoid the gas meter housing when the fixed first punch is punching, and the avoidance groove 2122 can avoid the gas meter housing when the adjustable second punch is punching, ensuring the smooth completion of punching. Specifically, the support block 212 can also be detachably set in the placement groove, and the shape and specifications of the support block 212 can be adjusted according to needs. More specifically, the avoidance hole 2121 and the avoidance groove 2122 have a through-hole design at the bottom, which facilitates the direct fall of waste generated during processing and facilitates waste collection.

[0045] Preferably, such as Figures 3-6 As shown, the telescopic end of the lifting mechanism 220 is fixedly connected to the mounting component 230; the telescopic end of the lifting mechanism 220 is fixedly connected to the mounting component 230 to ensure that the first punch 310 and the second punch 320 remain stable during the lifting process and avoid shaking or deviation; specifically, the lifting mechanism 220 is fixedly connected to the upper mounting plate 231 by bolt structure, and the lifting mechanism 220 can adopt a hydraulic cylinder or other telescopic device in the prior art.

[0046] Preferably, such as Figure 1 and Figure 2As shown, the gas meter housing opening device also includes a frame 100, and the drilling assembly 200 is installed on the frame 100; the frame 100 can provide stable support. Specifically, the lifting mechanism 220 and the placement seat 210 are fixedly connected to the frame 100.

[0047] Specifically, when the center distance between the two openings (gas outlet and gas inlet) on the gas meter casing differs for different needs, adjusting the position of the gas outlet inevitably leads to corresponding adjustments to the internal structure of the gas meter, significantly increasing design and material costs and hindering product standardization. In this device, the first punch 310 opens the gas outlet interface, and the second punch 320 opens the gas inlet interface. When using this device to open the gas meter casing, the position of the gas outlet interface remains unchanged, while the gas inlet interface is adjusted according to actual needs, achieving compatibility while maintaining an unchanged internal structure. This solves the problem of different movement mechanisms at different center distances in gas meter casings; reduces the variety of parts, improving the standardization and versatility of gas meter products; enhances product reliability and safety, improves quality and efficiency, drives further transformation and upgrading of traditional industrial structures, and promotes the healthy development of emerging industries.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A gas meter casing opening device, characterized in that, The component includes a punching assembly, which includes a mounting component, a first punch, a second punch, and a lifting mechanism for driving the mounting component to move up and down. The first punch is fixedly connected to the mounting component, and the second punch is slidably connected to the mounting component to adjust the distance between the first punch and the second punch.

2. The gas meter casing opening device as described in claim 1, characterized in that, The mounting component includes an upper mounting plate and a lower mounting plate that are fixedly connected and spaced apart. The edges of the upper mounting plate and the lower mounting plate have corresponding sliding notches, and the second punch is slidably disposed within the sliding notches.

3. The gas meter casing opening device as described in claim 2, characterized in that, The outer wall of the second punch is fixedly connected to a connecting cylinder located within the sliding notch, and the outer wall of the connecting cylinder is fixedly connected to a sliding support block located between the upper mounting plate and the lower mounting plate; the outer wall of the top or bottom end of the connecting cylinder is threadedly connected to a fastening nut that abuts against the top side of the upper mounting plate or the bottom side of the lower mounting plate.

4. The gas meter casing opening device as described in claim 3, characterized in that, The fastening nut includes an extension support plate provided on the outer side wall. The side of the extension support plate opposite to the upper mounting plate or the lower mounting plate has a lever block protruding from it. The side of the fastening nut that abuts against the upper mounting plate or the lower mounting plate has an elastic pad in close contact.

5. The gas meter casing opening device as described in claim 3, characterized in that, The connecting cylinder is threaded with fastening nuts at both its top and bottom ends.

6. The gas meter casing opening device as described in claim 3, characterized in that, The upper mounting plate or the lower mounting plate has distance markings on its sidewall, and the sliding block has alignment markings corresponding to the distance markings on its sidewall.

7. The gas meter casing opening device as described in claim 1, characterized in that, The drilling assembly also includes multiple fixed limiting rods. The mounting component is provided with multiple limiting holes for the limiting rods to pass through. The bottom end of the limiting rod is fixedly connected to a placement seat located below the first punch and the second punch. The top side of the placement seat is provided with a placement groove for placing the gas meter housing.

8. The gas meter casing opening device as described in claim 7, characterized in that, The placement slot is provided with a support block for the gas meter casing to be fitted onto it. The top side of the support block has an avoidance hole located directly below the first punch and an avoidance groove located directly below the second punch.

9. A gas meter casing opening device as described in claim 1, characterized in that, The telescopic end of the lifting mechanism is fixedly connected to the mounting component.

10. A gas meter casing opening device as described in any one of claims 1 to 9, characterized in that, It also includes a frame on which the punching assembly is mounted.

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