A method for manufacturing a steel brush electrode of an electromagnetic flowmeter

Abstract

The present invention discloses a method for manufacturing a steel brush electrode of an electromagnetic flowmeter, and the present invention relates to the technical field of processing the steel brush electrode of an electromagnetic flowmeter. The steel brush electrode of the electromagnetic flowmeter is manufactured by the cooperation of a support, a guide support mechanism and a strand-type cutting mechanism. The upper end surface of the support is equipped with a strand-type cutting mechanism for dividing a whole bundle of steel wires into several strands for sequential cutting to prevent heat accumulation in the cutting area. The left part of the upper end surface of the support is equipped with a guide support mechanism for guiding and lifting the steel wires in mobile feeding. The strand-type cutting mechanism includes a self-redirecting drive assembly arranged outside the support and the bearing shaft for controlling the reciprocating forward and reverse rotation of the drive shaft. The present invention avoids heat concentration, deformation of the steel wires and performance degradation by dividing the whole bundle of steel wires into several strands and cutting them sequentially, and ensures that the cutting surface is flat and smooth by cutting one by one, avoids cutting stress concentration, reduces bending and deformation, ensures that the length and shape of each steel wire are consistent, and improves assembly accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of electromagnetic flowmeter steel brush electrode processing, in particular to a method for manufacturing an electromagnetic flowmeter steel brush electrode. Background Art

[0002] Electromagnetic flowmeter is an instrument used to measure the flow rate of conductive liquids. The steel brush electrode of the electromagnetic flowmeter is one of its core components, which is used to detect the generated electromotive force. The steel brush electrode consists of a stainless steel electrode head and multiple stainless steel wires, and can measure slurry media. When the measured medium is a liquid containing solid particles, the steel brush electrode is in a soft state. After the solid particles impact the steel brush electrode, the steel brush electrode can return to its original state due to its own elasticity. The steel brush electrode generally includes the following steps: electrode head production, surface treatment, steel wire production and integrated steel brush electrode, among which steel wire production is the most important step. In this process, the raw steel wire needs to be cut into multiple steel wire segments of the same length.

[0003] The existing cutting method is to gather the whole bundle of steel wires together for cutting. During the cutting process, a large amount of heat will be generated at the cutting point. When the steel wires are gathered together and cut, the heat will be concentrated at the cutting point, causing the temperature to rise rapidly. The heat collection phenomenon will cause the steel wires at the cutting position to deform, lose their original flatness and elasticity, and affect the mechanical strength of the steel wires. In addition, concentrated cutting will also cause an uneven cutting surface, which may produce burrs or uneven fractures, and it is difficult to ensure that the length of each steel wire is consistent, which may cause uneven length of the steel wires after cutting, affecting the subsequent assembly accuracy. Summary of the invention

[0004] The present invention provides a method for manufacturing a steel brush electrode for an electromagnetic flowmeter, which solves the technical problems that the existing cutting method cuts off a whole bundle of steel wires in a concentrated manner, resulting in heat concentration, deformation of the steel wires, loss of flatness and elasticity, and affecting mechanical strength. At the same time, the cutting surface is uneven, burrs and uneven fractures are generated, and it is difficult to ensure the consistency of the steel wire length, thereby affecting the assembly accuracy.

[0005] The present invention provides a method for manufacturing a steel brush electrode for an electromagnetic flowmeter. The specific steps of the method for manufacturing a steel brush electrode for an electromagnetic flowmeter are as follows:

[0006] S1. Electrode head production: Select 316L stainless steel material and machine it into the required shape and size to obtain the electrode head.

[0007] S2. Surface treatment: A protective oxide layer is formed on the surface of the electrode tip through chemical passivation treatment to improve the corrosion resistance and electrical properties of the electrode tip.

[0008] S3. Steel wire production: Select cold-drawn 316L steel wire with a diameter of 0.3mm as the raw material, divide the steel wire into several strands through a stranding cutting mechanism, and then cut the stranded steel wire into steel wires of uniform length in turn, and perform annealing treatment.

[0009] S4, integrated steel brush electrode: the stainless steel wire is embedded and positioned in the electrode head, the stainless steel wire and the electrode head are connected by welding, and silicone rubber is added between the stainless steel wires to obtain a steel brush electrode.

[0010] S5. Assembly test: Assemble the processed steel brush electrode to the sensor part of the electromagnetic flowmeter, ensure that the steel brush electrode is correctly aligned with the coil and magnetic circuit, and then test the signal response, pressure resistance and sealing of the steel brush electrode.

[0011] The steps of the method for manufacturing the electromagnetic flowmeter steel brush electrode in the above steps S1-S5 need to be completed by the support, the guide mechanism and the strand cutting mechanism.

[0012] The upper end surface of the support is equipped with a strand-cutting mechanism for dividing a whole bundle of steel wire into several strands for cutting in sequence to prevent heat accumulation in the cutting area; the left part of the upper end surface of the support is equipped with a guide and support mechanism for guiding and lifting the steel wire in moving feeding; the strand-cutting mechanism includes two annular frames symmetrically fixedly connected to the upper end surface of the support through support plates, a plurality of strand-cutting rings fixedly connected to the circumferential outer wall of the annular frames at equidistant intervals in the circumference, an arc-shaped sleeve plate fixedly connected between the two corresponding strand-cutting rings, a load-bearing shaft rotatably connected to the upper part of the support through a mounting plate, a telescopic cutting assembly arranged on the right part of the load-bearing shaft, an intermittent feeding assembly arranged outside the load-bearing shaft for promoting the intermittent movement of the steel wire, and a self-redirecting drive assembly jointly arranged outside the support and the load-bearing shaft for controlling the reciprocating forward and reverse rotation of the drive shaft.

[0013] In one possible implementation, the telescopic cutting assembly includes a vertical plate fixedly connected to the upper end surface of the support and located on the right side of the load-bearing shaft, the vertical plate is fixedly connected to a column shaft on the side close to the load-bearing shaft, a slide cylinder is rotatably connected to the outside of the column shaft, a slide plate is slidably connected to the inside of the slide cylinder, a cutting saw is provided on the side of the slide plate close to the annular frame, strip-shaped through grooves are provided on the left and right sides of the slide plate, sliding columns slidably arranged in the strip-shaped through grooves are fixedly connected to the left and right sides of the slide plate, and an arc frame mounted on the outside of the sliding column is fixedly connected to the outer wall of the load-bearing shaft through a connecting column.

[0014] In one possible implementation, the intermittent feeding assembly includes a sliding rod group fixedly connected to the upper end surface of the support through a fixed plate and a sleeve shaft fixedly connected to the outside of the load-bearing shaft, the sliding rod group is slidably connected to the outside of an L-shaped frame, the rear end face of the transverse section of the L-shaped frame is fixedly connected to a mounting ring sleeved on the outside of the sleeve shaft, the outer wall of the sleeve shaft is provided with a spiral groove, the inner surface wall of the mounting ring is fixedly connected to a sliding column slidably connected in the spiral groove, and the circumferential outer wall of the mounting ring is equidistantly provided with a plurality of one-way push members corresponding to the stranding rings.

[0015] In one possible implementation, the one-way push member includes a mounting rod fixedly connected to the outer wall of the mounting ring, the mounting rod is fixedly connected to a ring cylinder on the side away from the mounting ring, a plurality of leaf springs are fixedly connected to the circumferential inner wall of the ring cylinder at equal intervals, and an arc-shaped clamping column is fixedly connected to the right part of the leaf spring.

[0016] The transmission gear of the present invention is a gear shifting device, and the transmission gear of the present invention is a gear shifting device, and the transmission gear of the present invention is a gear shifting device.

[0017] In a possible implementation, the guide support mechanism includes a ring fixedly connected to the upper end surface of the support through a connecting column, and a plurality of guide cylinders corresponding to the ring cylinder are fixedly connected to the inner wall of the ring circumference at equal intervals, and a clamping assembly is installed between the guide cylinder and the mounting rod.

[0018] In a possible implementation, the clamping assembly includes an arcuate through groove formed on the outer wall of the guide cylinder away from the load-bearing shaft, the outer wall of the guide cylinder is hinged with an arcuate pressure hoop located in the arcuate through groove, the guide cylinder is slidably connected to a strip frame on the side close to the load-bearing shaft, the arcuate pressure hoop is fixedly connected to a connecting telescopic plate on the side close to the strip frame, a connecting column is rotatably connected between the connecting telescopic plate and the strip frame, a damping slider is slidably connected inside the strip frame, and a push-pull rod is fixedly connected between the damping slider and the mounting rod.

[0019] In a possible implementation, a clamping portion is commonly provided between the annular frame and the bearing shaft for pressing and clamping the wire after stranding when cutting. The clamping portion includes a plurality of sliding grooves equidistantly arranged on opposite sides of the two annular frames and corresponding to the stranding rings. An arc-shaped support plate is commonly slidably connected between the left and right opposite sliding grooves. A strip plate is fixedly connected to the side of the arc-shaped support plate close to the bearing shaft. A swivel is rotatably connected to the outside of the bearing shaft. A plurality of inclined frames corresponding to the strip plates are equidistantly fixed to the circumferential outer wall of the swivel through fixed columns. A shifting column slidably arranged in the inclined frame is fixedly connected to the side of the strip plate close to the inclined frame.

[0020] It can be seen from the above technical solutions that the present invention has the following advantages:

[0021] In the present invention, a strand-type cutting mechanism is used to divide a whole bundle of steel wires into several strands and arrange them circumferentially, and then each strand of steel wire is cut one by one, thereby avoiding excessive heat generation at the same cutting point, and effectively preventing deformation of the steel wire and degradation of performance caused by heat concentration. Only one strand of steel wire is cut each time, and the generated heat can be dissipated more quickly, thereby maintaining the flatness and mechanical properties of the steel wire.

[0022] In the present invention, by cutting each steel wire one by one, it can also ensure that the cut surface of each steel wire is flat and smooth, reduce the generation of burrs and irregular fractures, and avoid the concentration of cutting stress, thereby reducing the bending and deformation of the steel wire during the cutting process, ensuring that the length and shape of each steel wire are consistent, and improving the subsequent assembly accuracy.

[0023] In the present invention, the combination of the intermittent feeding component and the self-redirecting driving component enables the remaining steel wire to be automatically pushed for movement and feeding after each steel wire cutting is completed, and the steel wire can be continuously provided during the cutting process, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0025] Figure 1 A diagram of a method for manufacturing a steel brush electrode of an electromagnetic flowmeter provided by the present invention.

[0026] Figure 2 The present invention provides an overall structural diagram.

[0027] Figure 3 This is a schematic diagram of the structure of the ring frame provided by the present invention when viewed from the right side.

[0028] Figure 4 This is a schematic diagram of the left-side structural perspective of the annular frame provided by the present invention.

[0029] Figure 5 This is a schematic diagram of the installation structure of the abutting portion provided by the present invention.

[0030] Figure 6 This is a schematic diagram of the connection structure between the intermittent feeding assembly and the self-redirecting driving assembly provided by the present invention.

[0031] Figure 7 A schematic cross-sectional view of a portion of the structure of the intermittent feeding assembly provided by the present invention.

[0032] Figure 8 This is a schematic diagram of the structure of the self-redirecting drive assembly provided by the present invention from a left-side perspective.

[0033] Fig. 9 This is a schematic diagram of the structure of the self-redirecting drive assembly provided by the present invention from a right-side perspective.

[0034] Fig.10 The present invention is a schematic cross-sectional view of a portion of the structure of the guide mechanism provided by the present invention.

[0035] The above drawings include the following reference numerals:

[0036] 1. Support; 2. Guide mechanism; 21. Ring; 22. Guide cylinder; 23. Pressing clamp assembly; 231. Arc groove; 232. Arc pressure hoop; 233. Strip frame; 234. Connecting telescopic plate; 235. Connecting column; 236. Damping slider; 237. Push-pull rod; 3. Stock-split cutting mechanism; 31. Ring frame; 32. Stock-split ring; 33. Arc sleeve; 34. Bearing shaft; 35. Telescopic cutting assembly; 351. Vertical plate; 352. Column shaft; 353. Slide cylinder; 354. Slide plate; 355. Cutting saw; 356. Strip groove; 357. Sliding column; 358. Arc frame; 36. Intermittent feeding assembly; 361. Slide rod group; 362. Sleeve shaft; 3 63. L-shaped frame; 364. Mounting ring; 365. Spiral groove; 366. Sliding column; 367. One-way push piece; 3671. Mounting rod; 3672. Ring cylinder; 3673. Leaf spring; 3674. Arc clamping column; 37. Self-redirecting drive assembly; 371. Hoop; 372. Drive ring; 373. No. 1 rotating shaft; 374. No. 1 gear; 375. Arc inner rack; 376. No. 1 pulley unit; 377. No. 2 rotating shaft; 378. No. 2 gear; 379. Arc outer rack; 3710. No. 2 pulley unit; 4. Tightening part; 41. Sliding groove; 42. Arc-shaped supporting plate; 43. Strip plate; 44. Swivel; 45. Inclined frame; 46. Shifting column. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0038] See also Figure 1 and Figure 2 The present invention provides a technical solution: a method for manufacturing a steel brush electrode of an electromagnetic flowmeter. The specific steps of the method for manufacturing a steel brush electrode of an electromagnetic flowmeter are as follows:

[0039] S1. Electrode head production: Select 316L stainless steel material and machine it into the required shape and size to obtain the electrode head.

[0040] S2. Surface treatment: A protective oxide layer is formed on the surface of the electrode tip through chemical passivation treatment to improve the corrosion resistance and electrical properties of the electrode tip.

[0041] S3, steel wire production: select cold-drawn 316L steel wire with a diameter of 0.3mm as the raw material, divide the steel wire into several strands through the stranding cutting mechanism 3, and then cut the divided steel wire into steel wires of uniform length in turn, and perform annealing treatment to eliminate the processing stress of cold drawing of the steel wire, so as to avoid the micro-charge generated by the large amount of processing stress on the steel brush electrode during the measurement process affecting the measurement result.

[0042] S4, integrated steel brush electrode: the stainless steel wire is embedded and positioned in the electrode head. The stainless steel wire and the electrode head are connected by welding. At the same time, silicone rubber is added between the stainless steel wires to obtain a steel brush electrode. The silicone rubber can prevent the stainless steel wires from sliding against each other and affecting the measurement results.

[0043] S5. Assembly test: Assemble the processed steel brush electrode to the sensor part of the electromagnetic flowmeter, ensure that the steel brush electrode is correctly aligned with the coil and magnetic circuit, and then test the signal response, pressure resistance and sealing of the steel brush electrode.

[0044] The steps of the method for manufacturing the electromagnetic flowmeter steel brush electrode in the above steps S1-S5 need to be completed by the support 1, the guide mechanism 2 and the strand cutting mechanism 3.

[0045] The upper end surface of the support 1 is equipped with a strand-splitting cutting mechanism 3 for dividing the whole bundle of steel wire into several strands for sequential cutting to prevent heat accumulation in the cutting area. The left part of the upper end surface of the support 1 is equipped with a guide and support mechanism 2 for guiding and lifting the steel wire in moving feeding.

[0046] See also Figure 2 In this embodiment, the strand-splitting cutting mechanism 3 includes two annular frames 31 symmetrically fixedly connected to the upper end surface of the support 1 through support plates, a plurality of strand-splitting rings 32 equidistantly fixedly connected to the circumferential outer wall of the annular frames 31, an arc-shaped sleeve plate 33 fixedly connected between the two corresponding strand-splitting rings 32, a bearing shaft 34 rotatably connected to the upper part of the support 1 through a mounting plate, a telescopic cutting assembly 35 arranged on the right part of the bearing shaft 34, an intermittent feeding assembly 36 arranged outside the bearing shaft 34 for promoting the intermittent movement of the steel wire, and a self-redirecting driving assembly 37 jointly arranged outside the support 1 and the bearing shaft 34 for controlling the reciprocating forward and reverse rotation of the driving shaft.

[0047] When cutting a whole bundle of steel wires, first divide it into several strands, then pass the divided steel wires through the guide support mechanism 2, the intermittent feeding assembly 36 and the dividing ring 32 from left to right in turn, and then control the self-redirecting driving assembly 37 to drive the bearing shaft 34 to reciprocate forward and reverse. During the reciprocating forward and reverse operation of the bearing shaft 34, the telescopic cutting assembly 35 and the intermittent feeding assembly 36 are driven to operate in different actions. When the bearing shaft 34 rotates forward: the telescopic cutting assembly 35 is driven to cut the steel wires divided into multiple strands one by one. This time The intermittent feeding assembly 36 is driven to move to the left and slides over the outside of the steel wire; when the bearing shaft 34 reverses: the telescopic cutting assembly 35 is driven to retract into the annular frame 31, so that it stops cutting the steel wire, and the bearing shaft 34 drives the intermittent feeding assembly 36 to move to the right at this time. When the intermittent feeding assembly 36 moves to the right, it clamps the strands of steel wire and pulls the steel wire to the right, automatically feeding the remaining steel wire after cutting; then the bearing shaft 34 is driven to rotate forward again, and the telescopic cutting assembly 35 is used to cut the steel wire after the feeding movement.

[0048] By dividing the whole bundle of steel wire into multiple strands and then cutting them one by one, only one strand of steel wire is cut each time, and the heat generated can be dissipated faster, avoiding excessive heat at the same cutting point, and effectively preventing the performance of the steel wire from being reduced due to heat concentration. At the same time, cutting one by one also avoids the concentration of cutting stress, reduces the bending and deformation of the steel wire during the cutting process, ensures that the length and shape of each steel wire are consistent, and can also automatically feed while periodically intermittently cutting to continuously provide steel wire, making the cutting process smoother.

[0049] See also Figure 2 , Figure 6 , Figure 8 and Fig. 9In this embodiment, the self-redirecting drive assembly 37 includes a hoop 371 fixedly connected to the upper end surface of the support 1 through a connecting rod, a driving ring 372 is rotatably connected inside the hoop 371, and a No. 1 rotating shaft 373 is rotatably connected to the upper end surface of the support 1 and located on the left side of the driving ring 372 through a left shaft plate. The right end of the No. 1 rotating shaft 373 is fixedly connected to a No. 1 gear 374, and the left part of the driving shaft is embedded and fixedly connected with an arc inner rack 375 that cooperates with the No. 1 gear 374. Between the No. 1 rotating shaft 373 and the bearing shaft 34 A No. 1 pulley unit 376 is connected for common transmission. The upper end surface of the support 1 and located on the right side of the driving ring 372 is rotatably connected with a No. 2 rotating shaft 377 through a right shaft plate. A No. 2 gear 378 is fixedly connected to the left end of the No. 2 rotating shaft 377. An arcuate outer rack 379 that cooperates with the No. 2 gear 378 is embedded and fixedly connected to the right part of the driving shaft. A No. 2 pulley unit 3710 is connected for common transmission between the No. 2 rotating shaft 377 and the bearing shaft 34. The arcuate outer rack 379 and the arcuate inner rack are arranged in a staggered and complementary manner.

[0050] When the self-directing drive assembly 37 is controlled to operate for wire cutting: first, the self-driven driving ring 372 is controlled to rotate, and the driving ring 372 then drives the arcuate inner rack and the arcuate outer rack 379 to rotate synchronously. When the driving ring 372 drives the arcuate inner rack to rotate until it meshes with the first gear 374, the second gear 378 and the arcuate outer rack 379 are in a separated state, and the arcuate inner rack then drives the first gear 374 to rotate, and the first gear 374 then drives the first shaft 373 to rotate, and the first shaft 373 then rotates through the first gear 374. The pulley unit 376 drives the load-bearing shaft 34 to rotate. When the arc-shaped inner rack rotates to separate from the No. 1 gear 374, the arc-shaped outer rack 379 begins to engage with the No. 2 gear 378. Then the arc-shaped outer rack 379 drives the No. 2 gear 378 to rotate in the opposite direction of the No. 1 gear 374. The No. 2 gear 378 then drives the No. 2 rotating shaft 377. The No. 2 rotating shaft 377 then drives the load-bearing shaft 34 to rotate in the other direction through the No. 2 pulley, thereby driving the load-bearing shaft 34 to intermittently switch different directions.

[0051] See also Figure 2 , Figure 6 and Figure 7In this embodiment, the intermittent feeding assembly 36 includes a slide rod group 361 fixedly connected to the upper end surface of the support 1 through a fixing plate and a sleeve shaft 362 fixedly connected to the outside of the bearing shaft 34. The slide rod group 361 is slidably connected to the outside of the L-shaped frame 363. The rear end surface of the transverse section of the L-shaped frame 363 is fixedly connected to a mounting ring 364 sleeved on the outside of the sleeve shaft 362. The outer wall of the sleeve shaft 362 is provided with a spiral groove 365. The inner surface wall of the mounting ring 364 is fixedly connected to a sliding column 366 slidably connected to the spiral groove 365. The mounting ring 364 is fixedly connected to the inner surface wall of the mounting ring 364. A plurality of one-way push members 367 corresponding to the splitting ring 32 are equidistantly arranged on the circumferential outer wall, and the one-way push member 367 includes a mounting rod 3671 fixedly connected to the outer wall of the mounting ring 364, a ring cylinder 3672 is fixedly connected to the side of the mounting rod 3671 away from the mounting ring 364, a plurality of leaf springs 3673 are equidistantly fixedly connected to the circumferential inner wall of the ring cylinder 3672, an arc-shaped clamping column 3674 is fixedly connected to the right part of the leaf spring 3673, and the leaf spring 3673 gradually approaches the axial side of the ring cylinder 3672 from left to right.

[0052] When the bearing shaft 34 is reversed: the bearing shaft 34 drives the sleeve shaft 362 to rotate synchronously, and the spiral groove 365 on its outer side is driven to change its position during the rotation of the sleeve shaft 362, and the spiral groove 365 then squeezes the sliding column 366 to make it move to the right, and the sliding column 366 then drives the mounting ring 364 to move to the right, and the mounting ring 364 then drives the ring cylinder 3672 to move to the right through the mounting rod 3671, and during the movement of the ring cylinder 3672 to the right, the inclined direction of the leaf spring 3673 is used to make the arc-shaped clamping column 3674 close to the axis side of the ring cylinder 3672, and then the stranded steel wire located in the ring cylinder 3672 is clamped, and then the clamped steel wire moves to the right synchronously with the mounting ring 364; when the mounting ring 364 moves to the right position of the sleeve shaft 362, the bearing shaft 34 starts to switch the direction to rotate forward, and drives the sleeve shaft 362 synchronously The sleeve shaft 362 then drives the sliding column 366 to move leftward through the spiral groove 365, and the sliding column 366 then drives the mounting ring 364 to move leftward. The mounting ring 364 then drives the ring cylinder 3672 to move leftward synchronously through the mounting rod 3671. During the movement of the ring cylinder 3672 to the left, the oblique direction of the leaf spring 3673 is used to stop the arc clamping column 3674 from squeezing and clamping the steel wire. Then the arc clamping column 3674 moves leftward synchronously with the ring cylinder 3672. During the movement to the left, the arc clamping column 3674 slides on the surface of the steel wire until the mounting ring 364 moves leftward to the left position of the sleeve; then the bearing shaft 34 starts to reverse again, and then the mounting ring 364 repeats the above-mentioned step of moving rightward, so that after the steel wire is cut, the remaining steel wire can be automatically pulled to the right to realize automatic feeding, so that the cutting operation can be carried out continuously and the cutting speed is accelerated.

[0053] See also Figure 2 , Figure 6and Fig.10 In this embodiment, the guide support mechanism 2 includes a ring 21 fixedly connected to the upper end surface of the support 1 through a connecting column 235, and a plurality of guide cylinders 22 corresponding to the ring cylinder 3672 are fixedly connected to the inner wall of the ring 21 at equal intervals, and a clamping assembly 23 is installed between the guide cylinder 22 and the mounting rod 3671. The clamping assembly 23 includes an arcuate through groove 231 provided on the outer wall of the guide cylinder 22 away from the bearing shaft 34, and the outer wall of the guide cylinder 22 is hinged with a through groove 231 located at the arcuate through groove 231. The arc-shaped pressure hoop 232 in 31, the side of the guide cylinder 22 close to the bearing shaft 34 is slidably connected with a strip frame 233, the side of the arc-shaped pressure hoop 232 close to the strip frame 233 is fixedly connected with a connecting telescopic plate 234, the connecting telescopic plate 234 and the strip frame 233 are rotatably connected with a connecting column 235, the inside of the strip frame 233 is slidably connected with a damping slider 236, and the damping slider 236 and the mounting rod 3671 are fixedly connected with a push-pull rod 237.

[0054] When the mounting plate moves to the left, it also pushes the push-pull rod 237 to move to the left, and the push-pull rod 237 then pushes the damping slider 236 to move to the left, and the damping slider 236 then pushes the bar frame 233 to move to the left, and the bar frame 233 then drives the connecting telescopic plate 234 to rotate through the connecting column 235, and the connecting telescopic plate 234 then drives the arc-shaped pressure hoop 232 to rotate, and the arc-shaped pressure hoop 232 rotates to squeeze the steel wire in the guide cylinder 22, so that the steel wire is tightly pressed in the guide cylinder 22, thereby preventing the arc-shaped clamping column 3674 from pushing part of the steel wire to the left when it moves to the left. Movement; when the mounting rod 3671 moves to the right, it will pull the push-pull rod 237 to move to the right, and the push-pull rod 237 will then drive the damping slider 236 to move to the right, and the damping slider 236 will then drive the bar frame 233 to move to the right. When the bar frame 233 moves to the right, it will drive the arc-shaped pressure hoop 232 to rotate through the connecting column 235 and the connecting telescopic plate 234, so that the arc-shaped pressure hoop 232 is moved away from the steel wire. The rotated arc-shaped pressure hoop 232 contacts the left groove wall of the arc-shaped through groove 231, and the push-pull rod 237 will then drive the damping slider 236 to slide in the bar frame 233.

[0055] See also Figure 2 , Figure 3 and Figure 4In this embodiment, the telescopic cutting assembly 35 includes a vertical plate 351 fixedly connected to the upper end surface of the support 1 and located on the right side of the load-bearing shaft 34, a column shaft 352 is fixedly connected to the side of the vertical plate 351 close to the load-bearing shaft 34, a slide cylinder 353 is rotatably connected to the outside of the column shaft 352, the column shaft 352 and the slide cylinder 353 are connected in an interference fit manner, a slide plate 354 is slidably connected to the inside of the slide cylinder 353, a cutting saw 355 is provided on the side of the slide cylinder 354 close to the annular frame 31, strip-shaped through grooves 356 are provided on the left and right sides of the slide cylinder 353, sliding columns 357 slidably arranged in the strip through grooves 356 are fixedly connected to the left and right sides of the slide cylinder 354, and an arc frame 358 sleeved on the outside of the sliding column 357 is fixedly connected to the outer wall of the load-bearing shaft 34 through a connecting column 235.

[0056] When the bearing shaft 34 rotates forward: the bearing shaft 34 drives the arc frame 358 to rotate synchronously through the connecting column 235. The arc frame 358 will squeeze the sliding column 357 during the process of rotating and changing its position. Since the column shaft 352 and the slide cylinder 353 are connected in an interference fit manner, there is a large friction resistance between the two. The rotating arc frame 358 will first squeeze the sliding column 357 to make it move in the direction away from the bearing shaft 34, and the sliding column 357 will then drive the slide plate 354 to move synchronously, and the slide plate 354 will then drive the saw 355 to move synchronously until the slide plate 354 extends the longest distance from the slide cylinder 353. At this time, the saw 355 moves to the position of the stranding ring 32, and then the bearing shaft 34 drives the saw 355 to rotate circumferentially through the arc frame 358, the sliding column 357, the slide plate 354 and the slide cylinder 353. During the circumferential rotation of the saw 355 along the right side of the annular frame 31, the steel wire located in the stranding ring 32 can be cut.

[0057] After the steel wire is cut, the load-bearing shaft 34 starts to reverse: the reversed load-bearing shaft 34 then drives the arc frame 358 to rotate synchronously, and the arc frame 358 reverses and squeezes the sliding column 357, so that the sliding column 357 moves toward the side close to the axis of the load-bearing shaft 34, and the sliding column 357 then drives the slide plate 354 to move synchronously and gradually retract into the slide cylinder 353, and the slide plate 354 then drives the saw 355 to move toward the axis of the load-bearing shaft 34 to a position misaligned with the annular frame 31, thereby preventing the intermittent feeding assembly 36 from interfering with the saw 355 when pushing the steel wire to the right, until the intermittent feeding assembly 36 drives the steel wire to move to the right. Afterwards, the saw 355 is driven again to move in a straight line away from the axis of the load-bearing shaft 34 and then fully extend, and then move in a circumferential direction to cut the next section of the steel wire one by one.

[0058] See also Figure 4 and Figure 5In this embodiment, a clamping portion 4 is commonly provided between the annular frame 31 and the bearing shaft 34 for pressing and clamping the wire after stranding when cutting. The clamping portion 4 includes a plurality of sliding grooves 41 equidistantly arranged on opposite sides of the two annular frames 31 and corresponding to the stranding rings 32. An arc-shaped retaining plate 42 is commonly slidably connected between the left and right opposite sliding grooves 41. A strip plate 43 is fixedly connected to the side of the arc-shaped retaining plate 42 close to the bearing shaft 34. A swivel 44 is rotatably connected to the outside of the bearing shaft 34. The swivel 44 and the bearing shaft 34 are rotatably connected in a manner of interference fit. A plurality of inclined frames 45 corresponding to the strip plates 43 are equidistantly fixedly connected to the circumferential outer wall of the swivel 44 through fixed columns. A shifting column 46 slidably arranged in the inclined frame 45 is fixedly connected to the side of the strip plate 43 close to the inclined frame 45.

[0059] When the steel wire is pulled to the right to the required distance by the intermittent feeding assembly 36 and is cut by the telescopic cutting assembly 35: the friction between the swivel 44 and the load-bearing shaft 34 is used to make the load-bearing shaft 34 rotate forward and drive the swivel 44 to rotate synchronously, and the swivel 44 then drives the inclined frame 45 to rotate synchronously through the fixed column. During the rotation of the inclined frame 45, the shifting column 46 is squeezed again, so that the shifting column 46 moves in the direction away from the load-bearing shaft 34, and the shifting column 46 then pushes the arc-shaped abutment plate 42 to move in the direction away from the load-bearing shaft 34 through the strip plate 43, so that the arc-shaped abutment plate 42 is tightly pressed against the steel wire in the stranding ring 32, thereby enhancing the stability near the steel wire cutting position and avoiding the displacement of the steel wire during the cutting process. After the arc-shaped abutment plate 42 touches the outside of the steel wire, the strip plate 43 and the inclined frame 45 stop moving. At this time, the load-bearing shaft 34 in forward rotation continues to rotate, and the load-bearing shaft 34 and the rotating ring 44 change from a relatively static state to a relatively rotating state; when the load-bearing shaft 34 starts to reverse after cutting the steel wire: the load-bearing shaft 34 drives the rotating ring 44 to rotate synchronously, and the rotating ring 44 then drives the inclined frame 45 to rotate synchronously through the fixed column. The rotating inclined frame 45 constantly changes its position and then squeezes the shifting column 46 to make it move toward the load-bearing shaft 34. The shifting column 46 then drives the arc-shaped abutment plate 42 to move toward the load-bearing shaft 34 through the strip plate 43, so that the arc-shaped abutment plate 42 is removed from the steel wire, so that the steel wire being fed moves to the right.

[0060] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0061] In addition, the terms "first", "second", "number one", "number two" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "number one", "number two" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0062] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for manufacturing a steel brush electrode for an electromagnetic flowmeter, characterized in that: The specific steps for making the electromagnetic flowmeter steel brush electrode are as follows: S1. Electrode head production: Select 316L stainless steel material and machine it into the required shape and size to obtain the electrode head; S2. Surface treatment: A protective oxide layer is formed on the surface of the electrode tip through chemical passivation treatment to improve the corrosion resistance and electrical properties of the electrode tip; S3, steel wire production: select cold-drawn 316L steel wire with a diameter of 0.3 mm as raw material, divide the steel wire into several strands through a strand-splitting cutting mechanism (3), and then cut the stranded steel wire into steel wires of uniform length in turn, and perform annealing treatment; S4, integrated steel brush electrode: the stainless steel wire is embedded and positioned in the electrode head, the stainless steel wire and the electrode head are connected by welding, and silicone rubber is added between the stainless steel wires to obtain a steel brush electrode; S5. Assembly test: Assemble the processed steel brush electrode to the sensor part of the electromagnetic flowmeter, ensure that the steel brush electrode is correctly aligned with the coil and magnetic circuit, and then test the signal response, pressure resistance and sealing of the steel brush electrode; The steps of the method for manufacturing the electromagnetic flowmeter steel brush electrode in the above steps S1-S5 need to be completed by the support (1), the guide support mechanism (2) and the strand cutting mechanism (3); wherein: The upper end surface of the support (1) is provided with a strand-splitting cutting mechanism (3) for dividing a bundle of steel wires into several strands for sequential cutting to prevent heat accumulation in the cutting area; the left portion of the upper end surface of the support (1) is provided with a guide and support mechanism (2) for guiding and lifting the steel wires in moving feeding; The strand-cutting mechanism (3) comprises: Two annular frames (31) symmetrically fixedly connected to the upper end surface of the support (1) through support plates, a plurality of dividing rings (32) fixedly connected to the circumferential outer wall of the annular frame (31) at equidistant intervals in the circumferential direction, an arc-shaped sleeve plate (33) fixedly connected between the two corresponding dividing rings (32), a bearing shaft (34) rotatably connected to the upper part of the support (1) through a mounting plate, a telescopic cutting assembly (35) arranged on the right part of the bearing shaft (34), an intermittent feeding assembly (36) arranged outside the bearing shaft (34) for driving the steel wire to move intermittently, and a self-directing driving assembly (37) jointly arranged outside the support (1) and the bearing shaft (34) for controlling the reciprocating forward and reverse rotation of the driving shaft; The telescopic cutting assembly (35) comprises a vertical plate (351) fixedly connected to the upper end surface of the support (1) and located on the right side of the bearing shaft (34); a column shaft (352) is fixedly connected to the side of the vertical plate (351) close to the bearing shaft (34); a slide cylinder (353) is rotatably connected to the outside of the column shaft (352); a slide plate (354) is slidably connected to the inside of the slide cylinder (353); a cutting saw (355) is arranged on the side of the slide plate (354) close to the annular frame (31); a strip-shaped through groove (356) is provided on the left and right sides of the slide cylinder (353); a sliding column (357) slidably arranged in the strip-shaped through groove (356) is fixedly connected to the left and right sides of the slide plate (354); and an arc frame (358) sleeved on the outside of the sliding column (357) is fixedly connected to the outer wall of the bearing shaft (34) through a connecting column (235); The intermittent feeding assembly (36) comprises a slide rod group (361) fixedly connected to the upper end surface of the support (1) through a fixing plate and a sleeve shaft (362) fixedly connected to the outside of the bearing shaft (34); the slide rod group (361) is slidably connected to the outside of an L-shaped frame (363); the rear end surface of the transverse section of the L-shaped frame (363) is fixedly connected to a mounting ring (364) sleeved on the outside of the sleeve shaft (362); the outer wall of the sleeve shaft (362) is provided with a spiral groove (365); the inner surface wall of the mounting ring (364) is fixedly connected to a sliding column (366) slidably connected to the spiral groove (365); the circumferential outer wall of the mounting ring (364) is equidistantly provided with a plurality of one-way push members (367) corresponding to the splitting ring (32); The one-way push member (367) comprises a mounting rod (3671) fixedly connected to the outer wall of the mounting ring (364); a ring tube (3672) is fixedly connected to the side of the mounting rod (3671) away from the mounting ring (364); a plurality of leaf springs (3673) are fixedly connected to the inner wall of the ring tube (3672) at equal intervals; and an arc-shaped clamping column (3674) is fixedly connected to the right side of the leaf spring (3673); The self-redirecting driving assembly (37) comprises a hoop (371) fixedly connected to the upper end surface of the support (1) through a connecting rod, a driving ring (372) is rotatably connected inside the hoop (371), a first rotating shaft (373) is rotatably connected to the upper end surface of the support (1) and located on the left side of the driving ring (372) through a left shaft plate, a first rotating shaft (373) is fixedly connected to the right end of the first rotating shaft (373) with a first gear (374), an arc inner rack (375) matched with the first gear (374) is embedded and fixedly connected to the left part of the driving shaft, and a first rotating shaft (373) and a bearing shaft (34) are connected between the first rotating shaft (373) and the bearing shaft (34). A No. 1 pulley unit (376) is connected for common transmission. The upper end surface of the support (1) is located on the right side of the driving ring (372) and is rotatably connected to a No. 2 rotating shaft (377) through a right shaft plate. A No. 2 gear (378) is fixedly connected to the left end of the No. 2 rotating shaft (377). An arc-shaped outer rack (379) that cooperates with the No. 2 gear (378) is embedded and fixedly connected to the right part of the driving shaft. A No. 2 pulley unit (3710) is connected for common transmission between the No. 2 rotating shaft (377) and the bearing shaft (34). The arc-shaped outer rack (379) and the arc-shaped inner rack are arranged in a staggered and complementary manner.

2. The method for manufacturing a steel brush electrode for an electromagnetic flowmeter according to claim 1, characterized in that: The guide support mechanism (2) comprises a ring (21) fixedly connected to the upper end surface of the support (1) via a connecting column (235); a plurality of guide cylinders (22) corresponding to the ring cylinder (3672) are fixedly connected at equal intervals to the inner wall of the circumference of the ring (21); and a clamping assembly (23) is installed between the guide cylinder (22) and the mounting rod (3671).

3. The method for manufacturing a steel brush electrode for an electromagnetic flowmeter according to claim 2, characterized in that: The clamping assembly (23) comprises an arcuate through groove (231) provided on the outer wall of the guide cylinder (22) away from the bearing shaft (34); the outer wall of the guide cylinder (22) is hinged with an arcuate pressure hoop (232) located in the arcuate through groove (231); the side of the guide cylinder (22) close to the bearing shaft (34) is slidably connected with a strip frame (233); the side of the arcuate pressure hoop (232) close to the strip frame (233) is fixedly connected with a connecting telescopic plate (234); a connecting column (235) is rotatably connected between the connecting telescopic plate (234) and the strip frame (233); a damping slider (236) is slidably connected inside the strip frame (233); a push-pull rod (237) is fixedly connected between the damping slider (236) and the mounting rod (3671).

4. The method for manufacturing a steel brush electrode for an electromagnetic flowmeter according to claim 1, characterized in that: A clamping portion (4) is provided between the annular frame (31) and the bearing shaft (34) for pressing and clamping the wire after stranding when cutting. The clamping portion (4) includes a plurality of sliding grooves (41) which are equidistantly arranged on opposite sides of the two annular frames (31) and correspond to the stranding rings (32). An arc-shaped supporting plate (42) is slidably connected between the left and right opposing sliding grooves (41). A strip plate (43) is fixedly connected to the side of the arc-shaped supporting plate (42) close to the bearing shaft (34). A rotating ring (44) is rotatably connected to the outside of the bearing shaft (34). A plurality of inclined frames (45) corresponding to the strip plates (43) are equidistantly fixedly connected to the circumferential outer wall of the rotating ring (44) through fixed columns. A shifting column (46) slidably arranged in the inclined frame (45) is fixedly connected to the side of the strip plate (43) close to the inclined frame (45).

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