Balanced flowmeter flange hole machining device

Abstract

The utility model discloses a balanced flowmeter flange hole machining device, which relates to the technical field of balanced flowmeter machining equipment and comprises a machining base, a rotary driving vertical plate is arranged on the rear side of the top of the machining base, and a protective front plate is fixedly mounted on the front side of the top of the machining base. A first gear is movably mounted on the front side of the rotation driving vertical plate, a positioning mechanism is arranged on the front side of the first gear, a flowmeter valve body is arranged on the front side of the positioning mechanism, a pressing mechanism is arranged on the left side of the front end of the front protection plate, the positioning mechanism comprises a mounting plate, and the mounting plate is fixedly mounted on the front side of the first gear. And a clamping motor is fixedly mounted at the top of the mounting plate. The positioning mechanism, the rotary driving vertical plate, the first gear and the pressing mechanism are matched with one another, so that the rear end of the balance flow meter is limited by the rotary driving vertical plate during drilling, the position of the balance flow meter can be kept stable, and the machining stability during flange hole drilling is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of balanced flow meter processing equipment, specifically to a balanced flow meter flange hole processing device. Background Technology

[0002] The balanced flow meter, also known as a multi-orifice plate flow meter, is a flow measurement instrument based on differential pressure. Its core component is a specially designed multi-orifice rectifier. This design aims to adjust the fluid being measured to a relatively stable and symmetrical state within the measuring tube. By measuring the differential pressure before and after the rectifier, and in conjunction with calculations by a differential pressure transmitter and a flow totalizer, the balanced flow meter can accurately calculate the instantaneous and cumulative flow rates of the fluid. However, existing technologies have the following problems:

[0003] Chinese patent document CN219254217U discloses a flange hole processing device for a balanced flow meter, relating to the field of flow meter processing technology. It includes a base, a workpiece mounting mechanism fixed on one side of the base surface, and a vertical plate fixed on the other side of the base surface. A drilling mechanism is fixed on the vertical plate. The workpiece mounting mechanism includes a fixed seat fixed to the base, a rotating ring rotatably connected to the side wall of the fixed seat, and a gear ring fixed to the side wall of the rotating ring away from the fixed seat. The gear ring meshes with a gear, which is fixed to the output shaft of a motor. The motor is mounted at the bottom of the fixed seat. This flange hole processing device for a balanced flow meter differs from existing technologies in that it does not require manual adjustment of the valve body position. It can perform flange hole processing on the valve body without moving the drill bit. It is convenient and simple to operate, easy to learn, and allows manual adjustment of the drill bit position. It can perform flange hole processing on valve bodies of different sizes, possessing the advantages of high adaptability and good adjustability.

[0004] Although the aforementioned literature describes a quick method for drilling flange holes, the valve body of the overall flow meter is held in place by grippers during the process, but this can only be done laterally. Once the drill bit drills into the flange, the pressure causes the flow meter to slide and shift backward, making it impossible to guarantee the stability of the drilling. At the same time, the debris generated during drilling cannot be effectively collected, causing it to fall directly onto the worktable during processing, affecting the working environment. Utility Model Content

[0005] This invention provides a device for machining flange holes in a balanced flow meter to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A flange hole processing device for a balanced flow meter includes a processing base. A rotary drive plate is provided on the rear top side of the processing base. A protective front plate is fixedly installed on the front top side of the processing base. A gear is movably installed on the front side of the rotary drive plate. A positioning mechanism is provided on the front side of the gear. A flow meter valve body is provided on the front side of the positioning mechanism. A pressing mechanism is provided on the left front end of the protective front plate. The positioning mechanism includes a mounting plate. The mounting plate is fixedly installed on the front side of the gear. A clamping motor is fixedly installed on the top of the mounting plate. The output shaft of the clamping motor passes through to the bottom of the mounting plate and is fixedly installed with a positive and negative threaded rod. The upper and lower sides of the outer wall of the positive and negative threaded rod are provided with threaded walls with opposite threads. A movable plate is threadedly installed on the outer wall of each of the two threaded walls. A clamping plate is fixedly installed on the right side of each of the two movable plates. A jaw is fixedly installed on the opposite face of each of the two clamping plates. The rear sides of the two jaws are in contact with the front side of the gear. The rear flange of the flow meter valve body is located between the two jaws.

[0008] A further improvement of this utility model is that: a limiting plate is fixedly installed at the bottom end of the positive and negative threaded rod, a limiting slide rod is fixedly installed at the bottom of the mounting plate, and both of the moving plates are slidably connected to the limiting slide rod.

[0009] A further improvement of the present invention is that a servo motor is fixedly installed on the rear side of the rotary drive plate, an encoder is provided on the outer wall of the servo motor, the output shaft of the servo motor passes through to the front side of the rotary drive plate and a second gear is fixedly installed thereon, and the second gear meshes with the first gear.

[0010] A further improvement of this utility model is that: a flow meter insertion hole is provided on the right side of the protective front plate, the front flange of the flow meter valve body is located on the front side of the protective front plate, the pressing mechanism includes a drive frame, a hydraulic cylinder is fixedly installed on the front side of the drive frame, the output end of the hydraulic cylinder passes through the inner cavity of the drive frame and a pressing drive plate is fixedly installed thereon, two slide rods are fixedly installed between the front and rear sides of the inner wall of the drive frame, the pressing drive plate is slidably connected to the two slide rods, and a drilling mechanism is provided on the right side of the pressing drive plate.

[0011] A further improvement of this utility model is that the drilling mechanism includes a pressing moving plate, which is fixedly installed on the right side of the pressing drive plate. The pressing moving plate has a through-screw groove, and a threaded screw is movably installed on the left side of the inner wall of the screw groove. The right end of the threaded screw passes through to the right side of the pressing moving plate and is fixedly installed with a knob. A moving plate is threadedly installed on the outer wall of the threaded screw. A drilling control is fixedly installed on the rear side of the moving plate. A drill bit is fixedly installed on the output shaft of the drilling control, and the drill bit is located on the front side of the flow meter valve body.

[0012] A further improvement of this utility model is that a stabilizing slide rod is fixedly installed between the left and right sides of the inner wall of the screw groove, the stabilizing slide rod is located above the screw thread, and the moving plate is slidably connected to the stabilizing slide rod.

[0013] A further improvement of the present invention is that: a ash box is fixedly installed below the front end of the protective front plate, a pull box is slidably installed inside the ash box, the pull box is located below the front end of the flow meter valve body, and the right end of the pull box extends through to the right side of the ash box and is fixedly installed with a pull block.

[0014] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0015] 1. This utility model provides a flange hole processing device for a balanced flow meter. Through the cooperation between the positioning mechanism, the rotary drive plate, the gear, and the pressing mechanism, the rear end of the balanced flow meter can be kept in a stable position by the limit of the rotary drive plate during drilling, thereby improving the processing stability of the flange hole.

[0016] 2. This utility model provides a flange hole processing device for a balanced flow meter. Through the cooperation between the protective front plate, the flow meter insertion hole, the ash box, the pull box, and the pull block, the debris falling during flange drilling can be collected and processed in a centralized manner, avoiding accumulation on the operating table and inconvenience for cleaning. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the positioning mechanism of the present invention.

[0019] Figure 3 This is a schematic diagram of the servo motor structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the pressing mechanism of the present invention.

[0021] Figure 5 This is a schematic diagram of the drilling mechanism of this utility model.

[0022] Figure 6 This is a schematic diagram of the pull-out box structure of this utility model.

[0023] In the diagram: 1. Machining base; 11. Protective front plate; 111. Flow meter insertion hole; 112. Ash box; 113. Pull-out box; 114. Pull block; 12. Pressing mechanism; 121. Drive frame; 122. Hydraulic cylinder; 123. Pressing drive plate; 124. Slide rod; 125. Drilling mechanism; 1251. Pressing moving plate; 1252. Lead screw groove; 1253. Threaded lead screw; 1254. Knob; 1255. Moving plate; 1256. Stabilizing slide bar; 1257. Drilling electrical control; 1258. Drill bit; 13. Flow meter valve body; 2. Rotary drive vertical plate; 21. Gear one; 22. Positioning mechanism; 221. Mounting plate; 222. Clamping motor; 223. Positive and negative threaded rod; 224. Limit slide bar; 225. Moving plate; 226. Clamping plate; 227. Gripper; 228. Limiting disc; 23. Servo motor; 231. Encoder; 232. Gear two. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] like Figure 1 , Figure 2 , Figure 3As shown, this utility model provides a processing device for a flange hole of a balanced flow meter, including a processing base 1. A rotary drive plate 2 is provided on the rear top side of the processing base 1. A protective front plate 11 is fixedly installed on the front top side of the processing base 1. A gear 21 is movably installed on the front side of the rotary drive plate 2. A positioning mechanism 22 is provided on the front side of the gear 21. A flow meter valve body 13 is provided on the front side of the positioning mechanism 22. A pressing mechanism 12 is provided on the left side of the front end of the protective front plate 11. The positioning mechanism 22 includes a mounting plate 221, which is fixedly installed on the front side of the gear 21. A clamping motor 222 is fixedly installed on the top of the mounting plate 221. The output shaft of the clamping motor 222 passes through to the bottom of the mounting plate 221 and is fixedly installed with a positive and negative threaded rod 223. The upper and lower sides of the outer wall of the positive and negative threaded rod 223 are provided with opposite threads. The outer walls of the two threaded walls are threaded with movable plates 225. Clamping plates 226 are fixedly installed on the right side of the two movable plates 225. Claws 227 are fixedly installed on the opposite sides of the two clamping plates 226. The rear sides of the two claws 227 are in contact with the front side of the gear 1 21. The rear flange of the flow meter valve body 13 is located between the two claws 227. The bottom end of the positive and negative threaded rod 223 is fixedly installed with a limit plate 228. The bottom of the mounting plate 221 is fixedly installed with a limit slide rod 224. The two movable plates 225 are slidably connected to the limit slide rod 224. The rear side of the rotary drive plate 2 is fixedly installed with a servo motor 23. The outer wall of the servo motor 23 is provided with an encoder 231. The output shaft of the servo motor 23 passes through to the front side of the rotary drive plate 2 and is fixedly installed with a gear 232. The gear 232 meshes with the gear 1 21.

[0026] When machining the flange hole of the balanced flow meter, simply place the rear flange of the flow meter valve body 13 between the two jaws 227 at the front end of gear 21, and then start the clamping motor 222 to drive the positive and negative threaded rod 223 to rotate. By using the opposite threaded walls on the upper and lower sides of the outer wall of the positive and negative threaded rod 223 to connect with the threaded connection of the moving plate 225, the two moving plates 225 can be controlled to move stably closer together by sliding connection with the limiting slide rod 224. Finally, the jaws 227 on the opposite sides of the two clamping plates 226 clamp and fix the rear flange of the flow meter valve body 13. At the same time, the lower moving plate 225 is prevented from falling off by the limiting plate 228. Furthermore, the clamping motor 222 can be powered by an external power supply via a long wire. After the flow meter valve body 13 is fixed, the servo motor 23 on the rear side of the rotating drive plate 2 can be started by the encoder 231 during drilling. The encoder 231 can precisely control the drilling spacing angle required for the rotation of its output shaft. The meshing of gear 232 and gear 21 can drive the flow meter valve body 13 fixed by the overall positioning mechanism 22 to rotate precisely. Since it only rotates 360 degrees, the clamping motor 222 powered by the long wire can be used normally. After drilling is completed, it can be reset by reversing 360 degrees, avoiding tangling of the long wire.

[0027] like Figure 4 , Figure 5 As shown, a flow meter insertion hole 111 is provided on the right side of the protective front plate 11, which runs through the front and back. The front flange of the flow meter valve body 13 is located on the front side of the protective front plate 11. The pressing mechanism 12 includes a drive frame 121. A hydraulic cylinder 122 is fixedly installed on the front side of the drive frame 121. The output end of the hydraulic cylinder 122 passes through the inner cavity of the drive frame 121 and a pressing drive plate 123 is fixedly installed thereon. Two slide rods 124 are fixedly installed between the front and rear sides of the inner wall of the drive frame 121. The pressing drive plate 123 is slidably connected to the two slide rods 124. A drilling mechanism 125 is provided on the right side of the pressing drive plate 123. The drilling mechanism 125 includes a pressing moving plate 1251, which is fixedly installed on the right side of the pressing drive plate 123. 1251 has a through-screw groove 1252. A threaded screw 1253 is movably installed on the left side of the inner wall of the screw groove 1252. The right end of the threaded screw 1253 extends to the right side of the pressing moving plate 1251 and is fixedly installed with a knob 1254. A moving plate 1255 is threadedly installed on the outer wall of the threaded screw 1253. A drilling control 1257 is fixedly installed on the rear side of the moving plate 1255. A drill bit 1258 is fixedly installed on the output shaft of the drilling control 1257. The drill bit 1258 is located on the front side of the flow meter valve body 13. A stabilizing slide rod 1256 is fixedly installed between the left and right sides of the inner wall of the screw groove 1252. The stabilizing slide rod 1256 is located above the threaded screw 1253. The moving plate 1255 and the stabilizing slide rod 1256 are slidably connected.

[0028] During drilling, the hydraulic cylinder 122 is activated to control the pressing drive plate 123 inside the drive frame 121 to move backward via a sliding connection with the slide rod 124. This drives the drill bit 1258, which rotates at high speed driven by the drilling control 1257, to drill the flange at the front end of the flow meter valve body 13. With the precise rotation of the flow meter valve body 13, all flange holes are processed 360 degrees. At the same time, depending on the size and position, the screw 1253 can be rotated by rotating the knob 1254. The screw connection between the moving plate 1255 and the screw 1253 allows the moving plate 1255 to move stably left and right via a sliding connection with the stabilizing slide rod 1256, making it easy to adjust the drilling position of the drill bit 1258 at any time.

[0029] like Figure 6 As shown, a dust collection box 112 is fixedly installed below the front end of the protective front plate 11. A pull-out box 113 is slidably installed inside the dust collection box 112. The pull-out box 113 is located below the front end of the flow meter valve body 13. The right end of the pull-out box 113 extends through to the right side of the dust collection box 112 and is fixedly installed with a pull block 114.

[0030] Since the front flange of the flowmeter valve body 13 is located on the front side of the protective front plate 11, large pieces of debris generated during drilling will fall down until they fall into the inner cavity of the pull-out box 113 in the ash collection box 112 for collection. When the drilling is finished, the pull-out box 113 can be pulled out using the pull block 114 for cleaning. After the drilling of the front flange of the flowmeter valve body 13 is completed, the rear flange of the flowmeter valve body 13 can be reinstalled forward and the same rapid drilling process can be performed.

[0031] The working principle of the flange hole processing device for the balanced flow meter will be explained in detail below.

[0032] like Figure 1-6As shown, when machining the flange hole of the balanced flow meter, simply place the rear flange of the flow meter valve body 13 between the two jaws 227 at the front end of gear 21, and then start the clamping motor 222 to drive the positive and negative threaded rod 223 to rotate. The opposing threaded walls on the upper and lower sides of the outer wall of the positive and negative threaded rod 223 are connected to the threaded connection of the moving plate 225 to control the two moving plates 225 to move stably closer together by sliding connection with the limiting slide rod 224. Finally, the jaws 227 on the opposite sides of the two clamping plates 226 clamp and fix the rear flange of the flow meter valve body 13. Simultaneously, the lower moving plate 225 is prevented from moving by the limiting plate 228. The clamping motor 222 can be powered by an external power supply via a long wire. After the flow meter valve body 13 is fixed, the servo motor 23 on the rear side of the rotating drive plate 2 can be started by the encoder 231 during drilling. The encoder 231 can precisely control the drilling spacing angle required for the rotation of its output shaft. The meshing of gear 232 and gear 21 can drive the flow meter valve body 13 fixed by the overall positioning mechanism 22 to rotate precisely. Since it only rotates 360 degrees, the clamping motor 222 powered by the long wire can be used normally. After drilling is completed, it can be reset by reversing 360 degrees, avoiding tangling of the long wire. During drilling, the hydraulic cylinder 122 is activated to control the pressing drive plate 123 inside the drive frame 121, which, through its sliding connection with the slide rod 124, drives the overall drilling mechanism 125 to move backward. This, in turn, drives the high-speed rotating drill bit 1258, driven by the drilling electrical control 1257, to drill the flange at the front end of the flowmeter valve body 13. With the precise rotation of the flowmeter valve body 13, all flange holes are machined 360 degrees. Simultaneously, depending on the size and position, the screw 1253 can be rotated by rotating the knob 1254. The threaded connection between the moving plate 1255 and the screw 1253 allows for the movement of the plate. The plate 1255 moves steadily left and right through a sliding connection with the stabilizing slide bar 1256, facilitating easy adjustment of the drilling position of the drill bit 1258. Meanwhile, since the front flange of the flowmeter valve body 13 is located in front of the protective front plate 11, large pieces of debris generated during drilling will fall down until they fall into the inner cavity of the pull-out box 113 in the ash collection box 112 for collection. When drilling is finished, the pull-out box 113 can be pulled out using the pull block 114 for cleaning. After the drilling work on the front flange of the flowmeter valve body 13 is completed, the rear flange of the flowmeter valve body 13 can be reinstalled forward, and the same rapid drilling process can be performed.

[0033] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A flange hole machining device for a balanced flow meter, comprising a machining base (1), characterized in that: A rotary drive plate (2) is provided on the rear top side of the processing base (1). A protective front plate (11) is fixedly installed on the front top side of the processing base (1). A gear (21) is movably installed on the front side of the rotary drive plate (2). A positioning mechanism (22) is provided on the front side of the gear (21). A flow meter valve body (13) is provided on the front side of the positioning mechanism (22). A pressing mechanism (12) is provided on the left side of the front end of the protective front plate (11). The positioning mechanism (22) includes a mounting plate (221). The mounting plate (221) is fixedly installed on the front side of the gear (21). A clamping motor is fixedly installed on the top of the mounting plate (221). (222) The output shaft of the clamping motor (222) passes through to the bottom of the mounting plate (221) and is fixedly installed with a positive and negative threaded rod (223). The upper and lower sides of the outer wall of the positive and negative threaded rod (223) are provided with threaded walls with opposite threads. The outer walls of the two threaded walls are threaded with movable plates (225). The right side of the two movable plates (225) is fixedly installed with clamping plates (226). The opposite surfaces of the two clamping plates (226) are fixedly installed with jaws (227). The rear sides of the two jaws (227) are in contact with the front side of gear one (21). The rear flange of the flow meter valve body (13) is located between the two jaws (227).

2. The flange hole processing device for a balanced flow meter according to claim 1, characterized in that: A limiting plate (228) is fixedly installed at the bottom end of the positive and negative threaded rod (223), and a limiting slide rod (224) is fixedly installed at the bottom of the mounting plate (221). Both of the moving plates (225) are slidably connected to the limiting slide rod (224).

3. The flange hole processing device for a balanced flow meter according to claim 1, characterized in that: A servo motor (23) is fixedly installed on the rear side of the rotary drive plate (2). An encoder (231) is provided on the outer wall of the servo motor (23). The output shaft of the servo motor (23) passes through to the front side of the rotary drive plate (2) and is fixedly installed with a second gear (232). The second gear (232) meshes with the first gear (21).

4. The flange hole processing device for a balanced flow meter according to claim 1, characterized in that: The protective front plate (11) has a flow meter insertion hole (111) that runs through the front and back on the right side. The front flange of the flow meter valve body (13) is located on the front side of the protective front plate (11). The pressing mechanism (12) includes a drive frame (121). A hydraulic cylinder (122) is fixedly installed on the front side of the drive frame (121). The output end of the hydraulic cylinder (122) passes through the inner cavity of the drive frame (121) and is fixedly installed with a pressing drive plate (123). Two slide rods (124) are fixedly installed between the front and back sides of the inner wall of the drive frame (121). The pressing drive plate (123) is slidably connected to the two slide rods (124). A drilling mechanism (125) is provided on the right side of the pressing drive plate (123).

5. The flange hole processing device for a balanced flow meter according to claim 4, characterized in that: The drilling mechanism (125) includes a pressing moving plate (1251), which is fixedly installed on the right side of the pressing drive plate (123). The pressing moving plate (1251) has a through screw groove (1252). A threaded screw (1253) is movably installed on the left side of the inner wall of the screw groove (1252). The right end of the threaded screw (1253) extends through to the right side of the pressing moving plate (1251) and is fixedly installed with a knob (1254). A moving plate (1255) is threadedly installed on the outer wall of the threaded screw (1253). A drilling control (1257) is fixedly installed on the rear side of the moving plate (1255). A drill bit (1258) is fixedly installed on the output shaft of the drilling control (1257). The drill bit (1258) is located on the front side of the flow meter valve body (13).

6. The flange hole processing device for a balanced flow meter according to claim 5, characterized in that: A stabilizing slide rod (1256) is fixedly installed between the left and right sides of the inner wall of the lead screw groove (1252). The stabilizing slide rod (1256) is located above the threaded lead screw (1253). The movable plate (1255) is slidably connected to the stabilizing slide rod (1256).

7. The flange hole processing device for a balanced flow meter according to claim 1, characterized in that: A ash box (112) is fixedly installed below the front end of the protective front plate (11). A pull box (113) is slidably installed inside the ash box (112). The pull box (113) is located below the front end of the flow meter valve body (13). The right end of the pull box (113) extends through to the right side of the ash box (112) and is fixedly installed with a pull block (114).

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