Centrifugal pump positioning shaft machining equipment and method

Abstract

The invention discloses centrifugal pump positioning shaft machining equipment and method, and belongs to the technical field of pump body assembly machining equipment and method.The centrifugal pump positioning shaft machining equipment comprises a symmetry degree measuring mechanism, the symmetry degree measuring mechanism comprises guide sleeves fixed to the two ends of a reciprocating lead screw, and a rotating handle fixed to a handle is installed at one end of the reciprocating lead screw; first sliding blocks moving reversely are in spiral transmission with the two ends of the outer wall of the reciprocating lead screw, one end of each first sliding block is connected to a trapezoidal clamping block, and the trapezoidal clamping block is connected with a sliding groove in the length direction of the supporting base; a U-shaped frame arranged on the bottom plate is arranged outside the trapezoid clamping block, and a first motor is fixedly installed at the center of the top of the U-shaped frame. The technical problems that a symmetry degree detection structure is complex in design, structural parts are independent in design, the linkage effect is poor, and when the positioning shafts are polished and ground, the two ends of the positioning shafts with different lengths and sizes cannot be adaptively ground are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of pump body component processing devices and methods, and specifically relates to a centrifugal pump positioning shaft processing device and method. Background Art

[0002] The centrifugal pump works by using the rotation of the impeller to make the water centrifugal. Before starting the water pump, the pump casing and the water suction pipe must be filled with water, and then the motor is started, so that the pump shaft drives the impeller and water to rotate at high speed. The water undergoes centrifugal motion and is thrown to the outer edge of the impeller, and flows into the water pressure pipeline of the water pump through the flow channel of the volute pump casing.

[0003] The positioning grooves on the centrifugal pumps often need to be measured and tested for symmetry, and the uniformity of symmetry is used to ensure that the centrifugal pump components can be effectively positioned and connected together. Existing devices often use a vernier caliper to detect the distance between the two ends of the positioning grooves, and then use a separation mechanism to achieve material classification. However, the above-mentioned structural design is relatively complex, the designs of the structural parts are relatively independent, and the linkage effect is poor. Moreover, when the positioning shaft is polished and ground, it is not enough to adaptively grind the two ends of the positioning shafts of different lengths, which is not conducive to improving the working efficiency of the device and also affects the use effect of the device. Summary of the invention

[0004] The purpose of the present invention is to provide a centrifugal pump positioning shaft processing equipment and method to solve the technical problems that the symmetry detection structure design is relatively complex, the design of the structural parts is relatively independent, the linkage effect is poor, and when the positioning shaft is polished and ground, it is not enough to adaptively grind the two ends of the positioning shaft of different lengths.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A centrifugal pump positioning shaft processing device, comprising: A symmetry measuring mechanism, the symmetry measuring mechanism comprising guide sleeves fixed at both ends of a reciprocating screw, a rotating handle fixed on a handle is installed at one end of the reciprocating screw, and both ends of the outer wall of the reciprocating screw are spirally driven with a first slider moving in the opposite direction, one end of the first slider is connected to a trapezoidal clamping block, and the trapezoidal clamping block is connected with a slide groove along the length direction of the support seat; The trapezoidal clamp block is provided with a U-shaped frame placed on the bottom plate outside, and a first motor is fixedly installed at the center of the top of the U-shaped frame. The output shaft of the first motor passes through the U-shaped frame and extends to the central rotating gear. Both ends of the central rotating gear are meshed with a gear plate that moves in the opposite direction. The extended end of the gear plate is connected to the push plate of the vernier caliper through a telescopic rod, and one end of the vernier caliper is connected to the trapezoidal clamp block through a fixed rod. The central rotating tooth is provided with a torsion spring adapted to the central axis, and the central axis is connected with a pull rope, one end of the pull rope passes through the U-shaped frame and is connected to the spring rod through a fixing ring, one end of the spring rod is fixed to the resistance plate, and the other end is connected to the limit block, and the inner wall of the fixing ring is provided with a resistance sleeve connected to the pull rope.

[0006] Furthermore, the bottom of the guide sleeve is slidably connected to the protrusion of the base plate through a movable block, the bottom of the limit block is fixed to the base plate through a bracket, and a first conveyor line placed on the base plate is provided below the trapezoidal clamping block, the first conveyor line and the second conveyor line are connected by an inclined plate, and a collection box placed on the base plate is provided outside the first conveyor line, and as the central axis drives the pull rope to rotate, the spring rod drives the contact plate to push the positioning shaft into the collection box.

[0007] Furthermore, the first conveyor line and the second conveyor line are both arranged on the frame and extend along a preset direction, and are used to carry and convey the positioning shaft. The second conveyor line is provided with an arc groove in the length direction.

[0008] Furthermore, it also includes a first cylinder placed at both ends of the outside of the second conveying line, the top of the first cylinder is connected to the crossbeam, the top of the crossbeam is fixedly mounted with a second cylinder, and the output shaft of the second cylinder passes through the crossbeam and extends to the arc-shaped pressure plate.

[0009] Furthermore, both ends of the piston rod on the second cylinder are connected to the second slider through a swing rod, and both sides of the swing rod are installed on the second cylinder and the second slider by a rotational connection. A strip groove is provided on the support block in the sliding direction of the second slider, and the outer wall of the second slider is fixed to the crossbeam through a bending rod. A second motor is fixedly installed on the crossbeam, and one end of the output shaft of the second motor extends to the first bevel gear inside the cover.

[0010] Furthermore, both ends of the outer wall of the first bevel gear are meshed and transmitted with a first bidirectional bevel gear, the first bidirectional bevel gear is of telescopic movable design, and one end of the first bidirectional bevel gear is meshed and transmitted with a second bevel gear through a second bidirectional bevel gear, one end of the second bidirectional bevel gear extends into the cavity inside the second slider, and one end of the second bevel gear is fixedly connected to a grinding wheel placed outside the second slider.

[0011] Furthermore, the second sliding block is fixedly connected to the supporting block via a push rod, and both ends of the second sliding block are integrally formed with embedded portions placed on the strip groove.

[0012] Furthermore, a third cylinder fixed on both sides of the U-shaped frame is installed at one end of the telescopic rod, the piston rod on the third cylinder is connected to the telescopic rod through a pull rod, the outer wall of the reciprocating screw is connected to the base plate through a roller, and a V-shaped groove connected to the positioning shaft is formed between the trapezoidal clamping blocks.

[0013] A method for machining a centrifugal pump positioning shaft comprises the following steps: S1.1. Place the positioning shaft in the V-shaped groove between the trapezoidal clamping blocks for position limiting and clamping, and according to the positioning shafts of different sizes, drive the reciprocating screw on the handle so that the trapezoidal clamping blocks can adaptively clamp and fix the positioning shaft; S1.2, start the first motor and cooperate with the third cylinder to make the push plate on the vernier caliper clamped at both ends of the positioning groove on the positioning shaft. When the thickness symmetry of the side wall of the positioning groove is uneven, the clamping distance and time of the push plate will be shortened, and then the spring rod drives the contact plate to push the time on the first conveyor line will be shortened, and the positioning shaft that does not meet the standards will be pushed into the collection box; S1.3, step S1.2 After the inspection work is completed, the positioning shaft is conveyed to the second conveyor line through the first conveyor line in cooperation with the inclined plate, and the second cylinder is started, and the grinding wheels at both ends of the second slider are moved to both ends of the positioning shaft under the action of mechanical transmission; S1.4. The second motor is started, and under the action of gear meshing transmission, the edge end of the positioning shaft is polished and grinded by the grinding wheel to eliminate burrs and burrs.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: A symmetry measuring mechanism is set up. The trapezoidal clamp block cooperates with the lead screw mechanism to not only adaptively clamp and limit the positioning shaft, but also allow the detected positioning shaft to fall onto the first conveyor line through the V-groove, thereby facilitating subsequent processing operations. The first motor starts and drives the rotation of the center gear. Under the action of the gear meshing transmission, the push plate on the vernier caliper can be used to perform synchronous limit measurement on both ends of the positioning groove on the positioning shaft. If the symmetry of the positioning groove is not uniform, one end of the side wall of the positioning shaft will appear relatively thick. At this time, the push plate on the vernier caliper at one end will shorten the clamping distance, thereby allowing the torsion spring to The spring rod connected to the pull rope can push the positioning shaft faster through the resistance plate due to the spring restoring force, and can also push the positioning shaft that does not meet the product into the collection box. The resistance sleeve on the fixed ring can provide resistance, thereby making up for a certain time difference, so that the positioning shaft can stably fall onto the first conveyor line. The positioning shaft that meets the standards can be better offset from the positioning shaft when pushed by the resistance plate, thereby ensuring that the products that meet the standards enter the second conveyor line, improving the stability of the equipment operation, with reasonable structural design and strong integrated performance. The positioning shafts that do not meet the products can be automatically classified and have strong automation performance.

[0015] A grinding mechanism is set. After the first cylinder is started, it can ensure that the grinding mechanism can perform a high lifting activity to avoid affecting the normal operation of the grinding mechanism, and can enable the positioning shaft on the second conveyor line to achieve normal conveying operation. After the second cylinder is started, it can drive the arc pressure plate to move downward, and cooperate with the arc groove on the second conveyor line to achieve effective positioning and clamping of the positioning shaft to prevent shaking during the polishing process. At the same time, during the downward movement of the arc pressure plate, the rotating connection setting of the swing rod is used to adaptively stretch the grinding wheel on the second slider according to the positioning shafts of different sizes. At this time, the second motor is started, and under the action of mechanical transmission, the grinding wheels on the second bevel gears at both ends can be driven to polish and grind the positioning shaft. At the same time, the first bidirectional bevel gear on the gear assembly is a movable telescopic design, which can not only effectively transmit power to the grinding wheel through the output shaft of the second motor, but also the grinding wheel can perform normal telescopic activities in the horizontal direction, and perform effective polishing operations during clamping and positioning, thereby eliminating burrs and burrs on the positioning shaft, effectively improving product quality and work efficiency.

[0016] (3) A first conveyor line and a second conveyor line are provided. The first conveyor line and the second conveyor line can not only be used to convey and carry the positioning shaft, but also can facilitate the corresponding screening, separation and positioning polishing work. The arc groove on the second conveyor line can effectively resist and fit on the positioning shaft, so that the positioning shaft is not prone to shaking during the conveying process, thereby ensuring the stability of the device. In addition, the first conveyor line cooperates with the second conveyor line to avoid mutual interference between detection and polishing work, thereby ensuring that the device can carry out symmetry measurement and polishing work in an orderly manner, thereby improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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 some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the structure of a centrifugal pump positioning shaft processing device and method of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of a centrifugal pump positioning shaft processing device and method of the present invention. Figure 2 ; Figure 3 It is a front view of a centrifugal pump positioning shaft processing device and method of the present invention; Figure 4It is a schematic diagram of the meshing transmission of the center rotating gear of the present invention; Figure 5 The present invention Figure 2 A magnified image of point A; Figure 6 The present invention Figure 2 A magnified view of point B; Figure 7 The present invention Figure 1 Enlarged view of point C; Figure 8 The present invention Figure 1 The enlarged view of point D; Fig. 9 is a schematic diagram of the meshing transmission of the first bidirectional bevel gear of the present invention; Fig.10 is a schematic diagram of meshing transmission of the second bidirectional bevel gear of the present invention; Fig.11 It is a structural schematic diagram of the positioning shaft of the present invention; Fig.12 The invention discloses a flow chart of a method for machining a centrifugal pump positioning shaft.

[0019] Figure numerals: 1, symmetry measuring mechanism; 2, reciprocating screw; 3, guide sleeve; 4, rotating handle; 5, first slider; 6, trapezoidal clamping block; 7, supporting seat; 8, first motor; 9, center rotating gear; 10, gear plate; 11, telescopic rod; 12, vernier caliper; 13, push plate; 14, torsion spring; 15, pull rope; 16, fixing ring; 17, spring rod; 18, contact plate; 19, limit block; 20, resistance sleeve; 21, movable block; 22, first input Feed line; 23, second conveyor line; 24, inclined plate; 25, collecting box; 26, arc groove; 27, first cylinder; 28, second cylinder; 29, arc pressure plate; 30, swing rod; 31, second slider; 32, support block; 33, strip groove; 34, second motor; 35, cover body; 36, first bevel gear; 37, first bidirectional bevel gear; 38, second bidirectional bevel gear; 39, second bevel gear; 40, grinding wheel; 41, third cylinder. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Reference Manual Attached Figure 1 and attached Figure 2As shown, a centrifugal pump positioning shaft processing equipment includes: a symmetry measuring mechanism 1, the symmetry measuring mechanism 1 includes a guide sleeve 3 fixed at both ends of a reciprocating screw 2, a rotating handle 4 fixed on a handle is installed at one end of the reciprocating screw 2, and both ends of the outer wall of the reciprocating screw 2 are spirally driven with a first slider 5 that moves in the opposite direction, one end of the first slider 5 is connected to a trapezoidal clamping block 6, and the trapezoidal clamping block 6 is connected with a slide groove along the length direction of a support seat 7; A symmetry measuring mechanism 1 is set up, and the trapezoidal clamping block 6 cooperates with the screw mechanism to not only adaptively clamp and limit the positioning shaft, but also can make the detected positioning shaft fall into the first conveyor line 22 through the V-groove, so as to facilitate the subsequent processing operations. The first motor 8 starts and drives the rotation of the center gear 9. Under the action of the gear meshing transmission, the push plate 13 on the vernier caliper 12 can perform synchronous limit measurement on both ends of the positioning groove on the positioning shaft. If the symmetry of the positioning groove is not uniform, one end of the side wall of the positioning shaft will appear relatively thick. At this time, the push plate 13 on the vernier caliper 12 at one end will shorten the clamping distance, so that the torsion spring 14 can be pulled up. The spring rod 17 connected to the rope 15 can push the positioning shaft faster through the resistance plate 18 due to the spring restoring force, and can also push the positioning shaft that does not meet the product into the collection box 25. The resistance sleeve 20 on the fixed ring 16 can provide resistance, thereby making up for a certain time difference, so that the positioning shaft can stably fall onto the first conveyor line 22, and the positioning shaft that meets the standards can be better offset from the positioning shaft when pushed by the resistance plate 18, thereby ensuring that the products that meet the standards enter the second conveyor line 23, improving the stability of the equipment operation, reasonable structural design, strong integration performance, automatic classification of positioning shafts that do not meet the products, and strong automation performance.

[0022] A U-shaped frame placed on the bottom plate is provided outside the trapezoidal clamping block 6, and a first motor 8 is fixedly installed at the center of the top of the U-shaped frame. The output shaft of the first motor 8 passes through the U-shaped frame and extends to the central rotating gear 9. Both ends of the central rotating gear 9 are meshed with a gear plate 10 that moves in the opposite direction. The extended end of the gear plate 10 is connected to the push plate 13 of the vernier caliper 12 through a telescopic rod 11, and one end of the vernier caliper 12 is connected to the trapezoidal clamping block 6 through a fixed rod; A torsion spring 14 matched with the central axis is provided on the central rotating tooth 9, and a pull rope 15 is connected to the central axis. One end of the pull rope 15 passes through the U-shaped frame and passes through the fixed ring 16 to be connected to the spring rod 17. One end of the spring rod 17 is fixed on the resistance plate 18, and the other end is connected to the limit block 19, and the inner wall of the fixed ring 16 is provided with a resistance sleeve 20 connected to the pull rope 15.

[0023] Specifically, the working principle of the symmetry measuring mechanism 1 is as follows: The reciprocating screw 2 is driven to rotate by the handle 4 through manual adjustment. Under the action of the spiral transmission, the first slider 5 drives the corresponding trapezoidal clamping blocks 6 at both ends to adaptively clamp and limit the positioning shafts of different sizes. The third cylinder 41 is started, and the push plate 13 on the vernier caliper 12 is driven to be inserted into the positioning groove through the telescopic rod 11. Then the first motor 8 is started and drives the push plate 13 to be limited and fixed toward the side wall of the positioning groove through the meshing transmission of the gear plate 10. When the symmetry of the positioning groove does not meet the requirements, the push plate 13 at one end will shorten the clamping distance and time. During the rotation of the center gear 9, the pull rope 15 on the center axis will be driven to rotate together. When the pull rope 15 is too short, the pull rope 15 will drive the resistance plate 18 to quickly push the positioning shaft on the first conveyor line 22 and push it into the collection box 25. The resistance sleeve 20 on the fixed ring 16 not only has a corresponding limiting and guiding effect on the pull rope 15 during the movement, but also can prevent the pull rope 15 from transmitting the force to the spring rod 17 too quickly, thereby forming a corresponding time difference, so that the positioning shaft can fall onto the first conveyor line 22 for corresponding conveying work.

[0024] refer to Figure 3 , Figure 5 and Figure 6 The bottom of the guide sleeve 3 is slidably connected to the protrusion of the bottom plate through a movable block 21, the bottom of the limit block 19 is fixed to the bottom plate through a bracket, and a first conveyor line 22 placed on the bottom plate is provided below the trapezoidal clamping block 6, the first conveyor line 22 and the second conveyor line 23 are connected by an inclined plate 24, and a collection box 25 placed on the bottom plate is provided outside the first conveyor line 22. As the central axis drives the pull rope 15 to rotate, the spring rod 17 drives the contact plate 18 to push the positioning shaft into the collection box 25. The first conveyor line 22 and the second conveyor line 23 are both arranged on the frame and extend in a preset direction, and are used to carry and convey the positioning shaft. An arc groove 26 is opened in the length direction of the second conveyor line 23.

[0025] Specifically, the guide sleeve 3 supports and connects the reciprocating screw 2, and can also ensure the normal rotation of the reciprocating screw 2, preventing the reciprocating screw 2 from deviating from its position during rotation. Moreover, when the extensions on both sides of the bottom end of the movable block 21 slide on the protruding parts of the bottom plate, the accuracy of the movement of the transmission parts can be further ensured, thereby improving the accuracy of the rotation of the transmission parts of the device.

[0026] refer to Figure 1 , Figure 4 , Figure 7 , Figure 8 A centrifugal pump positioning shaft processing device also includes a first cylinder 27 placed at both ends of the outside of the second conveying line 23, the top of the first cylinder 27 is connected to the crossbeam, and the second cylinder 28 is fixedly installed on the top of the crossbeam. The output shaft of the second cylinder 28 passes through the crossbeam and extends to the arc pressure plate 29.

[0027] Both ends of the piston rod on the second cylinder 28 are connected to the second slider 31 through a swing rod 30, and both sides of the swing rod 30 are installed on the second cylinder 28 and the second slider 31 by a rotational connection. The sliding direction of the second slider 31 is provided with a strip groove 33 placed on the support block 32, and the outer wall of the second slider 31 is fixed to the crossbeam through a bending rod, and a second motor 34 is fixedly installed on the crossbeam, and one end of the output shaft of the second motor 34 extends to the first bevel gear 36 inside the cover body 35.

[0028] The setting of the first cylinder 27 can lift the entire grinding mechanism to a corresponding height, thereby avoiding interference with the positioning shaft on the second conveyor line 23, thereby better ensuring the normal conveying work of the second conveyor line 23. During the downward pushing process, the second cylinder 28 simultaneously realizes the clamping positioning and the length adjustment of the grinding mechanism, thereby adapting to the grinding and polishing of positioning shafts of different lengths.

[0029] A grinding mechanism is set. After the first cylinder 27 is started, it can ensure that the grinding mechanism can perform a high lifting activity to avoid affecting the normal operation of the grinding mechanism, and can enable the positioning shaft on the second conveyor line 23 to achieve normal conveying operation. After the second cylinder 28 is started, it can drive the arc-shaped pressure plate 29 to move downward, and cooperate with the arc groove 26 on the second conveyor line 23. It can also achieve effective positioning and clamping of the positioning shaft to prevent shaking during the polishing process. At the same time, during the downward movement of the arc-shaped pressure plate 29, the rotating connection setting of the swing rod 30 is used to move the grinding wheel 40 on the second slider 31 according to the different The positioning shafts of the same size are adaptively stretched in length. At this time, the second motor 34 is started. Under the action of mechanical transmission, the grinding wheels 40 on the second bevel gears 39 at both ends can be driven to polish the positioning shafts. At the same time, the first bidirectional bevel gear 37 on the gear assembly is a movable telescopic design, which can not only effectively transmit power to the grinding wheel 40 through the output shaft of the second motor 34, but also the grinding wheel 40 can perform normal telescopic activities in the horizontal direction, and perform effective polishing operations during clamping and positioning, thereby eliminating burrs and burrs on the positioning shaft, effectively improving product quality and work efficiency.

[0030] refer to Figure 2 , Fig.10 and Fig.11 Both ends of the outer wall of the first bevel gear 36 are meshed with a first bidirectional bevel gear 37, the first bidirectional bevel gear 37 is of telescopic movable design, and one end of the first bidirectional bevel gear 37 is meshed with a second bevel gear 39 through a second bidirectional bevel gear 38, one end of the second bidirectional bevel gear 38 extends into the cavity inside the second slider 31, and one end of the second bevel gear 39 is fixedly connected to a grinding wheel 40 placed outside the second slider 31.

[0031] Specifically, the second slider 31 and the support block 32 are fixedly connected by a push rod, and both ends of the second slider 31 are integrally formed with an embedded portion placed on the strip groove 33. One end of the telescopic rod 11 is equipped with a third cylinder 41 fixed on both sides of the U-shaped frame, and the piston rod on the third cylinder 41 is connected to the telescopic rod 11 through a pull rod. The outer wall of the reciprocating screw 2 is connected to the bottom plate through a roller, and a V-shaped groove connected to the positioning axis is formed between the trapezoidal clamping blocks 6.

[0032] A method for machining a centrifugal pump positioning shaft comprises the following steps: S1.1. Place the positioning shaft in the V-shaped groove between the trapezoidal clamping blocks 6 for position limiting and clamping, and according to the positioning shafts of different sizes, drive the reciprocating screw 2 on the handle 4 so that the trapezoidal clamping blocks 6 can clamp and fix the positioning shaft adaptively; S1.2, start the first motor 8, cooperate with the third cylinder 41, so that the push plate 13 on the vernier caliper 12 is limited and clamped at both ends of the positioning groove on the positioning shaft. When the thickness symmetry of the side wall of the positioning groove is uneven, the clamping distance and time of the push plate 13 will be shortened, and then the spring rod 17 drives the contact plate 18 to push the first conveyor line 22 The time will be shortened, and the positioning shaft that does not meet the standards will be pushed into the collection box 25; S1.3, step S1.2 After the inspection work is completed, the positioning shaft is conveyed to the second conveyor line 23 through the first conveyor line 22 in cooperation with the inclined plate 24, and the second cylinder 28 is started. Under the action of mechanical transmission, the grinding wheels 40 at both ends of the second slider 31 move to both ends of the positioning shaft; S1.4, the second motor 34 is started, and under the gear meshing transmission, the grinding wheel 40 is used to polish the edge of the positioning shaft to eliminate burrs and burrs.

[0033] The entire centrifugal pump positioning shaft processing method effectively improves the accuracy of data detection, prevents technical problems that affect data accuracy due to structural interference, is beneficial to personnel operation, improves work efficiency, and effectively removes burrs and flash on the positioning shaft through the grinding mechanism, thereby improving product quality.

[0034] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0035] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A centrifugal pump positioning shaft processing equipment, characterized in that: include: A symmetry measuring mechanism (1), the symmetry measuring mechanism (1) comprising guide sleeves (3) fixed at both ends of a reciprocating screw (2), a rotating handle (4) fixed on a handle being mounted at one end of the reciprocating screw (2), and first sliders (5) for reverse movement being spirally driven at both ends of the outer wall of the reciprocating screw (2), one end of the first slider (5) being connected to a trapezoidal clamping block (6), and the trapezoidal clamping block (6) being connected to a slide groove along the length direction of a support seat (7); The trapezoidal clamping block (6) is provided with a U-shaped frame placed on the bottom plate outside, and a first motor (8) is fixedly installed at the center of the top of the U-shaped frame. The output shaft of the first motor (8) passes through the U-shaped frame and extends to the central rotating gear (9). Both ends of the central rotating gear (9) are meshed with a gear plate (10) that moves in the opposite direction. The extended end of the gear plate (10) is connected to a push plate (13) of a vernier caliper (12) through a telescopic rod (11), and one end of the vernier caliper (12) is connected to the trapezoidal clamping block (6) through a fixed rod. The central rotating gear (9) is provided with a torsion spring (14) adapted to the central axis, the central axis is connected with a pull rope (15), one end of the pull rope (15) passes through the U-shaped frame and passes through the fixing ring (16) to be connected to the spring rod (17), one end of the spring rod (17) is fixed to the resistance plate (18), and the other end is connected to the limit block (19), and the inner wall of the fixing ring (16) is provided with a resistance sleeve (20) connected to the pull rope (15).

2. The centrifugal pump positioning shaft processing equipment according to claim 1, characterized in that: The bottom of the guide sleeve (3) is slidably connected to the protruding portion of the bottom plate through a movable block (21), the bottom of the limit block (19) is fixed to the bottom plate through a bracket, and a first conveying line (22) placed on the bottom plate is provided below the trapezoidal clamping block (6), the first conveying line (22) and the second conveying line (23) are connected through an inclined plate (24), and a collecting box (25) placed on the bottom plate is provided outside the first conveying line (22), and as the central shaft drives the pull rope (15) to rotate, the spring rod (17) drives the contact plate (18) to push the positioning shaft into the collecting box (25).

3. The centrifugal pump positioning shaft processing equipment according to claim 2, characterized in that: The first conveying line (22) and the second conveying line (23) are both arranged on a frame and extend along a preset direction, and are used to carry and convey the positioning shaft; the second conveying line (23) is provided with an arc groove (26) in the length direction.

4. The centrifugal pump positioning shaft processing equipment according to claim 3, characterized in that: It also includes a first cylinder (27) disposed at both ends of the outside of the second conveyor line (23), the top of the first cylinder (27) being connected to a crossbeam, a second cylinder (28) being fixedly mounted on the top of the crossbeam, and an output shaft of the second cylinder (28) passing through the crossbeam and extending to the arc-shaped pressure plate (29).

5. The centrifugal pump positioning shaft processing equipment according to claim 4, characterized in that: Both ends of the piston rod on the second cylinder (28) are connected to the second slider (31) via a swing rod (30), and both sides of the swing rod (30) are mounted on the second cylinder (28) and the second slider (31) by means of a rotational connection. A strip groove (33) disposed on a support block (32) is provided in the sliding direction of the second slider (31), and the outer wall of the second slider (31) is fixed to a crossbeam via a bending rod. A second motor (34) is fixedly mounted on the crossbeam, and one end of an output shaft of the second motor (34) extends to a first bevel gear (36) inside the cover body (35).

6. The centrifugal pump positioning shaft processing equipment according to claim 5, characterized in that: Both ends of the outer wall of the first bevel gear (36) are meshed with a first bidirectional bevel gear (37), the first bidirectional bevel gear (37) is of telescopic design, and one end of the first bidirectional bevel gear (37) is meshed with a second bevel gear (39) via a second bidirectional bevel gear (38), one end of the second bidirectional bevel gear (38) extends into a cavity inside the second slider (31), and one end of the second bevel gear (39) is fixedly connected to a grinding wheel (40) disposed outside the second slider (31).

7. The centrifugal pump positioning shaft processing equipment according to claim 5, characterized in that: The second sliding block (31) and the supporting block (32) are fixedly connected via a push rod, and both ends of the second sliding block (31) are integrally formed with an embedded portion placed on the strip groove (33).

8. The centrifugal pump positioning shaft processing equipment according to claim 1, characterized in that: A third cylinder (41) fixed to both sides of the U-shaped frame is installed at one end of the telescopic rod (11); a piston rod on the third cylinder (41) is connected to the telescopic rod (11) via a pull rod; an outer wall of the reciprocating screw (2) is connected to a bottom plate via a roller; and a V-shaped groove connected to a positioning shaft is formed between the trapezoidal clamping blocks (6).

9. A method for processing a centrifugal pump positioning shaft, applied to a centrifugal pump positioning shaft processing device according to any one of claims 1 to 8, characterized in that: The steps include: S1.

1. Place the positioning shaft in the V-shaped groove between the trapezoidal clamping blocks (6) for position limiting clamping, and according to the positioning shafts of different sizes, drive the reciprocating screw (2) on the handle (4) so ​​that the trapezoidal clamping blocks (6) can clamp and fix the positioning shaft adaptively; S1.2, start the first motor (8) and cooperate with the third cylinder (41) to make the push plate (13) on the vernier caliper (12) limit and clamp at both ends of the positioning groove on the positioning shaft. When the thickness symmetry of the side wall of the positioning groove is uneven, the clamping distance and time of the push plate (13) will be shortened, and then the spring rod (17) drives the contact plate (18) to push on the first conveyor line (22) The time will be shortened, and the positioning shaft that does not meet the standards will be pushed into the collection box (25); S1.3, after the detection work of step S1.2 is completed, the positioning shaft is conveyed to the second conveying line (23) through the first conveying line (22) in cooperation with the inclined plate (24), and the second cylinder (28) is started. Under the action of mechanical transmission, the grinding wheels (40) at both ends of the second slider (31) are moved to both ends of the positioning shaft; S1.4, the second motor (34) is started, and under the gear meshing transmission, the edge end of the positioning shaft is polished and ground by the grinding wheel (40), thereby eliminating burrs and burrs.

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