An oil-filled pressure gauge rolling device

Abstract

This utility model discloses a rolling edge device for an oil-filled pressure gauge, comprising: a positioning mold mounted on a base for holding the pressure gauge assembly; a ferrule mounted on the bottom of a bench drill for holding the pressure gauge assembly; and a rolling edge cutter mounted on a slider for pressing the pressure gauge assembly. In this utility model, the bench drill is modified so that the part of the drill bit is fitted with a ferrule that conforms to the contour of the pressure gauge assembly, and a base containing a bearing and a positioning mold are correspondingly mounted below it; the rolling edge cutter is mounted on one side via a guide rail slider assembly; the core processing action can be completed through a simple linkage between an operating rod and a tension rod, reducing the difficulty of operation while effectively improving processing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of processing equipment technology, specifically to an oil-filled pressure gauge edge rolling device. Background Technology

[0002] Oil-filled pressure gauges are pressure measuring instruments whose inner cavity is filled with damping liquids such as silicone oil and glycerin. Their core design effectively buffers instantaneous pressure fluctuations and external vibrations from impacting elastic elements (such as Bourdon tubes) and pointers through the damping effect of the liquid, ensuring stable and clear readings under conditions of frequent vibration, such as pumps, compressors, and construction machinery.

[0003] To ensure the sealing performance of the internal damping fluid and the protective effect of the dial, the dial of an oil-filled pressure gauge requires a tight fit between a transparent cover and a protective ring to achieve a sealed enclosure. The current machining method involves clamping and fixing the pressure gauge assembly on a lathe using a three-jaw chuck. After positioning, a rolling cutter rotates around the edge to complete the sealing process. However, this method requires individual clamping, positioning, and calibration of the assembly for each operation. A single lathe can only process one workpiece at a time. Furthermore, when changing to pressure gauge assemblies of different specifications, the chuck and rolling cutter need to be readjusted. The entire process is time-consuming and cannot meet the efficiency requirements of mass production. Utility Model Content

[0004] The purpose of this utility model is to provide an oil-filled pressure gauge edge rolling device in order to solve the above problems.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution, including:

[0006] A positioning mold, mounted on the base, is used to hold the pressure gauge assembly;

[0007] A ferrule, installed at the bottom of the bench drill, is used to hold the pressure gauge assembly.

[0008] The edge-rolling cutter, mounted on the slider, is used to press the pressure gauge assembly.

[0009] The positioning mold is detachably connected to the base, and the top of the positioning mold has an arc groove.

[0010] As a further description of the above technical solution, the ferrule is rotatably connected to the bottom of the bench drill output shaft, and the inner contour of the ferrule fits the outer contour of the pressure gauge assembly.

[0011] As a further description of the above technical solution, a lifting rod is provided on the top of the bench drill, and one side of the lifting rod is rotatably connected to the operating rod.

[0012] As a further description of the above technical solution, the middle part of the rolling cutter is detachably connected to the slider, and the bottom of the slider is slidably connected to the guide rail.

[0013] As a further description of the above technical solution, a sliding seat is provided at the bottom of the guide rail, and the height of the sliding seat is not higher than the height of the base.

[0014] As a further description of the above technical solution, the side of the slider away from the positioning mold is detachably connected to the connecting strip, and the end of the connecting strip is rotatably connected to the turntable.

[0015] As a further description of the above technical solution, a tension rod is installed on the side of the turntable, and the rotation angle range of the tension rod is 0-60°.

[0016] As a further description of the above technical solution, the pressure gauge assembly includes a gauge housing, a transparent cover is detachably installed on one side of the gauge housing, and sealing rings are sleeved on the edges of the gauge housing and the transparent cover, respectively abutting against the gauge housing and the transparent cover.

[0017] As a further description of the above technical solution, a cover ring is installed at the connection part between the watch case and the transparent cover, and the cover ring is annularly clamped on the outside of the watch case and the transparent cover.

[0018] The beneficial effects of this utility model are as follows:

[0019] In this invention, the bench drill is modified so that the part of the bench drill that holds the drill bit is replaced with a ferrule that fits the contour of the pressure gauge assembly, and a base containing a bearing and a positioning mold are installed below it; a rolling cutter is installed on one side via a guide rail slider assembly; the core machining action can be completed by simple linkage between the operating lever and the tension lever, which reduces the difficulty of operation and effectively improves the machining efficiency.

[0020] To more clearly illustrate the structural features and functions of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0021] Figure 1 This is the front view of the oil-filled pressure gauge edge-rolling device of this utility model;

[0022] Figure 2 yes Figure 1 Schematic diagram of the structure of the pressure gauge assembly;

[0023] Figure 3 This is a top view of the oil-filled pressure gauge edging device of this utility model. Figure 1 ;

[0024] Figure 4 This is a top view of the oil-filled pressure gauge edging device of this utility model. Figure 2 .

[0025] Figure label:

[0026] 1. Positioning mold; 101. Arc groove; 2. Base; 3. Pressure gauge assembly; 301. Gauge case; 302. Transparent cover; 303. Sealing ring; 304. Cover ring; 4. Compression sleeve; 5. Bench drill; 6. Rolling cutter; 7. Slider; 8. Lifting rod; 9. Operating lever; 10. Guide rail; 11. Sliding seat; 12. Connecting strip; 13. Turntable; 14. Pull rod. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0028] like Figures 1-4 As shown, in one embodiment, an oil-filled pressure gauge edge-rolling device includes: a positioning mold 1, a ferrule 4, and an edge-rolling cutter 6;

[0029] The positioning mold 1 is installed on the base 2 to hold the pressure gauge assembly 3 and ensure that the assembly will not shift during processing; the ferrule 4 is installed on the bottom of the bench drill 5 to hold the pressure gauge assembly 3 and provide axial fixation and rotational driving force for the assembly; the edge rolling cutter 6 is installed on the slider 7 to squeeze the pressure gauge assembly 3 and complete the sealing and forming operation.

[0030] For example, the positioning mold 1 and the base 2 are detachably connected, that is, they can be quickly disassembled and assembled by means of bolts or buckles, so as to facilitate the replacement of the positioning mold 1 of the corresponding size according to the pressure gauge component 3 of different specifications; and the top of the positioning mold 1 is provided with an arc groove 101 to ensure that the component can fit perfectly with the groove when it is placed.

[0031] It should be noted in detail that the pressure gauge assembly 3 includes a gauge housing 301, and a transparent cover 302 is detachably installed on one side of the gauge housing 301; wherein, a sealing ring 303 is fitted around the edge of the gauge housing 301 and the transparent cover 302, and the sealing ring 303 abuts against the gauge housing 301 and the transparent cover 302 respectively; correspondingly, a cover ring 304 is installed at the connection part of the gauge housing 301 and the transparent cover 302, and the cover ring 304 is annularly clamped on the outside of the gauge housing 301 and the transparent cover 302, and its redundant edge to be processed will be rolled and sealed by the extrusion of the rolling cutter 6.

[0032] Understandably, during processing, the pre-assembled pressure gauge assembly 3 is first placed face down smoothly into the arc groove 101 of the positioning mold 1. Since the contour of the arc groove 101 perfectly matches the curved shape of the bottom of the pressure gauge assembly 3, the assembly can form a comprehensive fit and support after being placed in, effectively avoiding problems such as sliding or flipping caused by vibration or rotation during processing, and providing a stable basic positioning for subsequent edge rolling processing.

[0033] Furthermore, the ferrule 4 is rotatably connected to the bottom of the output shaft of the bench drill 5, that is, it can rotate flexibly through bearings and other components. The inner contour of the ferrule 4 fits the outer contour of the pressure gauge assembly 3, ensuring that the ferrule 4 can rotate synchronously with the output shaft of the bench drill 5.

[0034] Specifically, the top of the bench drill 5 is equipped with a lifting rod 8, and one side of the lifting rod 8 is rotatably connected to the operating rod 9.

[0035] Understandably, the bench drill 5 is modified so that the original part of the bench drill 5 where the drill bit is installed is replaced with a ferrule 4 that fits the contour of the pressure gauge assembly 3. Then, by rotating the operating lever 9 on one side of the bench drill 5, the ferrule 4 can be pressed down to fit the pressure gauge assembly 3. After the bench drill 5 is started, the ferrule 4 can be driven to rotate synchronously, thereby driving the pressure gauge assembly 3 to rotate at a stable speed.

[0036] Please continue reading. Figures 1-4 In this embodiment, the middle part of the rolling cutter 6 on one side of the positioning mold 1 is detachably connected to the slider 7, while the bottom of the slider 7 is slidably connected to the guide rail 10, ensuring that the slider 7 can slide smoothly in the preset direction without jamming or deviation.

[0037] Specifically, a sliding seat 11 is provided at the bottom of the guide rail 10, and the height of the sliding seat 11 is not higher than the height of the base 2.

[0038] Furthermore, the side of the slider 7 away from the positioning mold 1 is detachably connected to the connecting strip 12, and the end of the connecting strip 12 is rotatably connected to the turntable 13 to form a linkage transmission structure; correspondingly, a tension rod 14 is installed on the side of the turntable 13, and the rotation angle range of the tension rod 14 is 0-60° to ensure that the feed amount of the rolling cutter 6 is accurately adapted to the processing requirements of the cover ring 304.

[0039] Understandably, when the lever 14 is pulled forcefully, the lever 14 drives the turntable 13 to rotate around the central axis. The turntable 13 converts the rotational motion into linear driving force through the connecting strip 12 on the edge, which simultaneously drives the slider 7 to slide smoothly along the guide rail 10 towards the pressure gauge assembly 3. The rolling edge knife 6 on the slider 7 moves synchronously with the slider 7, gradually approaching the excess edge of the cover ring 304, and applying uniform extrusion force radially towards the center of the pressure gauge assembly 3. Under the synergistic effect of the continuous rotation of the pressure gauge assembly 3 and the directional extrusion of the rolling edge knife 6, the edge of the cover ring 304 is uniformly rolled, tightly wrapping the edge of the case 301, the sealing ring 303 and the connection part of the transparent cover 302, and finally forming a gapless sealing structure, effectively ensuring the sealing performance of the oil-filled pressure gauge.

[0040] Working principle: During the processing operation, the pre-assembled pressure gauge assembly 3 (including the gauge housing 301, sealing ring 303, transparent cover 302, and the cover ring 304 to be rolled) is first placed face down in the arc groove 101 of the positioning mold 1 to ensure that the initial positions of each component are aligned; then, the feed operating lever 9 on the side of the bench drill 5 is rotated to drive the ferrule 4 to move vertically downward slowly until it is precisely pressed against the top of the pressure gauge assembly 3, forming an axial fixation to prevent offset during rotation; then the bench drill 5 drive system is started so that the ferrule 4 can rotate synchronously with the spindle and drive the pressure gauge assembly 3 to rotate stably at the set speed;

[0041] During this process, the operator pulls the side tension rod 14, which drives the bottom turntable 13 to rotate around the axis via the linkage transmission. The transmission bar connected to the edge of the turntable 13 then drives the slider 7 to slide smoothly along the preset guide rail 10 towards the pressure gauge assembly 3. The rolling edge knife 6 fixed on the slider 7 gradually approaches the redundant part of the edge of the cover ring 304 as the slider 7 moves, and applies uniform extrusion pressure radially towards the center of the pressure gauge assembly 3. Under the combined effect of the continuous rotation of the assembly and the directional extrusion of the rolling edge knife 6, the redundant edge of the cover ring 304 is uniformly rolled and tightly wraps the edge of the casing 301, the sealing ring 303 and the transparent cover 302, finally forming a gapless sealing structure, ensuring the sealing performance and reliability of the oil-filled pressure gauge.

[0042] Through the above technical solution, this application achieves precise axial and radial positioning of the component by using a customized ferrule 4 that precisely fits the outer contour of the pressure gauge component 3 and a support base 2 with a positioning groove, which greatly reduces clamping offset error. The continuous process of pressing and fixing the ferrule 4, driving the spindle to rotate, and feeding the edge-rolling cutter 6 driven by the tension rod 14 can be completed by the simple linkage of the operating rod 9 and the tension rod 14, which effectively reduces the difficulty of operation, realizes single-process integrated operation, and effectively improves processing efficiency while enhancing product consistency and reliability.

[0043] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An oil filled pressure gauge rolling device, characterized by, include: A positioning mold (1) is installed on a base (2) and is used to hold a pressure gauge assembly (3); The ferrule (4) is installed at the bottom of the bench drill (5) to hold the pressure gauge assembly (3); A rolling cutter (6) is mounted on a slider (7) and is used to press the pressure gauge assembly (3).

2. The oil filled pressure gauge rolling device of claim 1, wherein, The positioning mold (1) is detachably connected to the base (2), and the top of the positioning mold (1) is provided with an arc groove (101).

3. The oil filled pressure gauge rolling device of claim 1, wherein, The ferrule (4) is rotatably connected to the bottom of the output shaft of the bench drill (5), and the inner contour of the ferrule (4) fits the outer contour of the pressure gauge assembly (3).

4. The oil filled pressure gauge rolling device of claim 1, wherein, The top of the bench drill (5) is provided with a lifting rod (8), and one side of the lifting rod (8) is rotatably connected to the operating rod (9).

5. The oil filled pressure gauge rolling device of claim 1, wherein, The middle part of the rolling cutter (6) is detachably connected to the slider (7), and the bottom of the slider (7) is slidably connected to the guide rail (10).

6. The oil filled pressure gauge rolling device of claim 5, wherein, The bottom of the guide rail (10) is provided with a sliding seat (11), and the height of the sliding seat (11) is not higher than the height of the base (2).

7. The oil-filled pressure gauge edge-rolling device according to claim 1, characterized in that, The slider (7) is detachably connected to the connecting strip (12) on the side away from the positioning mold (1), and the end of the connecting strip (12) is rotatably connected to the turntable (13).

8. The oil-filled pressure gauge edge-rolling device according to claim 7, characterized in that, A tension rod (14) is installed on the side of the turntable (13), and the rotation angle range of the tension rod (14) is 0-60°.

9. The oil-filled pressure gauge edge-rolling device according to claim 1, characterized in that, The pressure gauge assembly (3) includes a housing (301), a transparent cover (302) is detachably installed on one side of the housing (301), and a sealing ring (303) is fitted around the edges of the housing (301) and the transparent cover (302), respectively abutting against the housing (301) and the transparent cover (302).

10. The oil filled pressure gauge rolling device of claim 9, wherein, A cover ring (304) is installed at the connection between the watch case (301) and the transparent cover (302), and the cover ring (304) is annularly clamped to the outside of the watch case (301) and the transparent cover (302).

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