Packaging shell processing device for Hall current sensor

Abstract

The invention relates to the technical field of shell processing, in particular to a packaging shell processing device for a Hall current sensor, which comprises a processing table, a conveying assembly is arranged at the upper end of the processing table, a to-be-processed shell is placed at the upper end of the conveying assembly, and a limiting assembly for guiding the to-be-processed shell is arranged at the upper end of the conveying assembly. The automatic feeding assembly is arranged, a conveying belt is perpendicular to the conveying assembly, a unique pushing structure is matched, intermittent reciprocating swing feeding of a swing rod is achieved, manual feeding is not needed in the process, and the feeding efficiency is greatly improved; the positioning assembly can automatically adjust the height of a positioning wheel according to the thickness of a shell through a U-shaped frame, a vertical rod, the positioning wheel, magnetorheological fluid and other structures, then the height of a polishing wheel is accurately adjusted, and the accurate positioning and polishing mode effectively solves the problems that in a traditional technology, the polishing face is uneven, and the shell thickness is uneven; and the quality of the packaging shell is improved.

Description

Technical Field

[0001] The invention relates to the technical field of shell processing, and in particular to a packaging shell processing device for a Hall current sensor. Background Art

[0002] With the widespread application of Hall current sensors, especially in the fields of industrial automation, power monitoring, energy management, etc., the performance requirements for Hall current sensors are constantly increasing. As one of the key components, the processing quality of the package shell is very important in the production and manufacturing process of Hall current sensors. The package shell not only protects the internal precision components, but also has a direct impact on the performance stability and reliability of the sensor. Its processing accuracy and quality directly affect the stability, reliability and service life of the sensor. The existing packaging shell processing technology for Hall current sensors has the following shortcomings: 1. At the beginning of the processing flow, the loading process relies on manual operation. Manual loading is inefficient and cannot meet the needs of large-scale and high-efficiency production. In addition, human factors lead to poor accuracy and consistency of loading, which can easily cause a series of problems in subsequent processing. 2. In the polishing process of the shell, the current processing equipment and technology cannot guarantee the flatness of the polished surface. The uneven polished surface not only affects the appearance quality of the package shell, but more seriously, it will cause the thickness of the shell to be uneven after polishing. This problem makes it difficult for the processed package shell to meet strict usage standards, greatly affecting the overall performance and quality of the Hall current sensor, increasing the defective rate of the product and increasing the production cost. Summary of the invention

[0003] In view of the above-mentioned shortcomings of the prior art, the present invention provides a packaging shell processing device for a Hall current sensor, which can effectively solve the problems in the prior art that the loading process relies on manual operation and the processing equipment and process cannot ensure the flatness of the polished surface.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides a device for processing a package shell for a Hall current sensor, comprising: A processing table, wherein a conveying assembly is disposed at the upper end of the processing table, a shell to be processed is placed at the upper end of the conveying assembly, a limiting assembly for guiding the shell to be processed is disposed at the upper end of the conveying assembly, an automatic feeding assembly for conveying the shell to be processed to the upper end of the conveying assembly is also disposed at the upper end of the processing table, and a positioning assembly and a polishing assembly are disposed above the conveying assembly at the upper end of the processing table; The automatic loading assembly includes a conveyor belt, and the conveyor belt is arranged perpendicular to the conveying direction of the transmission assembly, and a pushing structure is arranged at the upper end of the processing table; The positioning assembly includes a U-shaped frame fixedly connected to the upper end of the processing table, the U-shaped frame is vertically symmetrically slidably penetrated by a vertical rod, the upper end of the U-shaped frame is fixedly connected to a liquid box, and the upper end of the vertical rod is arranged through the liquid box, the lower ends of the two vertical rods are commonly fixedly connected to a mounting plate, the lower end of the mounting plate is rotatably connected to a positioning wheel, a third reset spring is fixedly connected between the vertical rod and the bottom wall of the liquid box, and a first magnetorheological fluid is arranged in the liquid box.

[0005] According to the above-mentioned device for processing a package shell for a Hall current sensor, the processing table includes a horizontally arranged processing plate, a lower end of which is fixedly connected to a plurality of supporting legs, and the lower ends of the plurality of supporting legs are all fixedly connected to foot pads.

[0006] According to the above-mentioned packaging shell processing device for a Hall current sensor, the conveying component includes an installation groove opened on a processing table, and a plurality of conveying rollers are rotatably installed in the installation groove. The plurality of conveying rollers are coaxially fixedly connected with a rotating shaft passing through the processing plate, and the outer sides of the plurality of rotating shafts are fixedly sleeved with a first sprocket, and the outer sides of the plurality of first sprockets are rotatably sleeved with a first chain.

[0007] According to the above-mentioned device for processing a packaging shell for a Hall current sensor, the limit assembly includes a limit groove opened at the lower end of a processing table, a bidirectional threaded rod is rotatably arranged in the limit groove, a rotating motor for driving the bidirectional threaded rod to rotate is fixedly installed on the side wall of the processing table, the rod body of the bidirectional threaded rod is symmetrically threadedly sleeved with two threaded sleeve blocks, the lower end of the threaded sleeve block is fixedly connected with a connecting rod, the upper end of the connecting rod is fixedly connected with a connecting block, the upper end of the processing table is symmetrically fixedly connected with two fixed plates with respect to the conveying assembly, the opposite ends of the two connecting blocks are fixedly connected with a plurality of sliding rods passing through the fixed plate, and the opposite ends of the plurality of sliding rods are commonly fixedly connected with the limit plate.

[0008] According to the above-mentioned device for processing a packaging shell for a Hall current sensor, the pushing structure includes a slide groove opened at the upper end of a processing table, the slide groove is slidably connected with a slide plate, a plurality of first return springs are fixedly connected between the slide plate and the slide groove, two push rods are fixedly connected to one end of the slide plate close to the conveyor belt, and a push plate is fixedly connected to the two ends of the two push rods close to the conveyor belt. The upper end of the processing table is symmetrically fixedly connected with two vertical plates about the slide groove, an installation box is arranged between the two vertical plates, a plurality of support rods are fixedly connected between the installation box and the two vertical plates, a tooth plate is slidably connected to the inner top wall of the installation box, and the The inner side wall of the installation box is rotatably connected to a swing gear meshing with a tooth plate, the inner side wall of the installation box is rotatably connected to a rotating rod, the rod body of the rotating rod is fixed with arc teeth intermittently meshing with the tooth plate and the swing gear, the lower end of the swing gear is fixedly connected to a swing rod, the rotating rod and the outer side of one of the rotating shafts are jointly fixedly sleeved with a second sprocket, the outer sides of the two second sprockets are jointly rotatably sleeved with a second chain, the bottom wall of the installation box is provided with a movable opening for the swing rod to swing, the limit plate close to the transmission assembly is fixedly connected to a U-shaped rod, the U-shaped rod is fixedly connected to a positioning plate, and the positions of the positioning plate and the limit plate correspond.

[0009] According to the above-mentioned packaging shell processing device for a Hall current sensor, the vertical rod includes a lifting rod that passes through the liquid box, the lower end of the lifting rod is fixedly connected to a thick rod, the lower end of the thick rod is provided with a sliding cavity, a second magnetorheological fluid is arranged in the sliding cavity, the sliding cavity is limited and slidably connected to a telescopic rod, the lower end of the lifting rod is provided with a guide groove connected to the sliding cavity, the upper end of the telescopic rod is fixedly connected to a guide rod slidably connected to the guide groove, a second reset spring is fixedly connected between the telescopic rod and the sliding cavity, and the second reset spring is arranged on the outside of the guide rod.

[0010] According to the above-mentioned packaging shell processing device for Hall current sensor, the polishing component includes a connecting plate fixedly connected to the upper sides of two vertical rods, the lower end of the connecting plate is fixedly connected to an equipment box, two driving shafts are symmetrically arranged through the bottom wall of the equipment box, and a polishing wheel is coaxially fixedly installed on the lower end of the driving shaft. A polishing motor is fixedly installed in the equipment box, and the output shaft of the polishing motor and the outer sides of the two driving shafts are fixedly sleeved with a third sprocket, and the outer sides of the plurality of third sprockets are jointly rotatably sleeved with a third chain, and the lower end surface of the third sprocket is lower than the lower end surface of the positioning wheel.

[0011] According to the above-mentioned packaging shell processing device for Hall current sensor, it also includes an automatic power adjustment component, which includes a shell fixedly connected to a U-shaped frame, a vertically arranged resistance column installed in the shell, the column body of the resistance column is slidably sleeved with a conductive ring, the lower end of the conductive ring is symmetrically fixedly connected with an adjustment rod, the lower ends of the two adjustment rods are connected to the upper end of the mounting plate, the upper side of the resistance column and the conductive ring are connected with a connecting wire, and the resistance column, the connecting wire and the polishing motor form a closed loop.

[0012] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects: The present invention is provided with an automatic feeding assembly, in which the conveyor belt and the transmission assembly are arranged vertically, and are equipped with a unique pushing structure, which drives the second sprocket through the rotating shaft, and rotates the rotating rod through the second chain, and its arc-shaped teeth intermittently mesh with the swing gear and the tooth plate, so that the swing rod can intermittently reciprocate, and push the slide plate and the pushing plate to push the shell from the conveyor belt to the transmission assembly. This process does not require manual feeding, greatly improves the feeding efficiency, and meets the needs of large-scale production; at the same time, it avoids interference from human factors, ensures the accuracy and consistency of feeding, and reduces subsequent processing problems.

[0013] The positioning component of the present invention utilizes structures such as a U-shaped frame, a vertical rod, a positioning wheel, and a magnetorheological fluid, and can automatically adjust the height of the positioning wheel according to the thickness of the shell, thereby accurately adjusting the height of the polishing wheel to ensure that the polishing thickness is 0.01-0.05mm each time. After adjusting the height, a magnetic field is applied to the first magnetorheological fluid in the liquid box to solidify it, fix the position of the vertical rod, and ensure the stability of the polishing wheel during the polishing process. This precise positioning and polishing method effectively solves the problems of uneven polishing surface and uneven shell thickness in traditional processes, improves the quality of the packaging shell, makes the product more in line with the use standards, enhances the overall performance and reliability of the Hall current sensor, and reduces the defective rate.

[0014] The power automatic adjustment component of the present invention cooperates with the positioning component. When the positioning wheel rises a large distance due to the protrusion on the shell surface, the mounting plate drives the conductive ring to slide on the resistance column, thereby reducing the resistance connected to the polishing motor circuit. According to Ohm's law, the circuit current increases and the polishing motor power increases, thereby realizing automatic adjustment of the polishing power according to the actual situation of the shell surface. While ensuring the polishing quality, unnecessary energy consumption is avoided, thereby achieving the purpose of energy saving and consumption reduction and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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 prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a structural schematic diagram of the first viewing angle of the present invention; Figure 2 It is a structural schematic diagram of the second viewing angle of the present invention; Figure 3 It is a structural schematic diagram of the present invention from a third viewing angle; Figure 4 for Figure 1 Schematic diagram of the structure inside the installation box; Figure 5 It is a structural schematic diagram of the fourth viewing angle of the present invention; Figure 6 for Figure 5 Schematic diagram of the structure inside the liquid tank; Figure 7 for Figure 5 Schematic diagram of the structure inside the equipment box; Figure 8 It is a structural schematic diagram of the automatic power adjustment component of the present invention.

[0017] 1. Processing table; 11. Processing plate; 12. Support leg; 13. Foot pad; 2. Transmission assembly; 21. Mounting groove; 22. Conveying roller; 23. Rotating shaft; 24. First sprocket; 25. First chain; 3. Limiting assembly; 31. Limiting groove; 32. Bidirectional threaded rod; 33. Rotating motor; 34. Threaded sleeve; 35. Connecting rod; 36. Connecting block; 37. Fixed plate; 38. Sliding rod; 39. Limiting plate; 4. Automatic feeding assembly; 41. Conveyor belt; 42. Slide groove; 43. Slide plate; 431. First return spring; 44. Push rod; 45. Pushing plate; 46. Vertical plate; 47. Mounting box; 48. Support rod; 49. Tooth plate; 410. Swinging gear; 411. Arc teeth; 412. Rotating rod; 413. Movable Mouth; 414, swing rod; 415, second sprocket; 416, second chain; 417, U-shaped rod; 418, positioning plate; 5, positioning assembly; 51, U-shaped frame; 52, vertical rod; 521, lifting rod; 522, thick rod; 523, sliding cavity; 524, telescopic rod; 525, guide rod; 526, second return spring; 53, liquid box; 54, mounting plate; 55, positioning wheel; 56, third return spring; 57, first magnetorheological fluid; 6, polishing assembly; 61, connecting plate; 62, equipment box; 63, driving shaft; 64, polishing wheel; 65, polishing motor; 66, third sprocket; 67, third chain; 7, power automatic adjustment assembly; 71, shell; 72, resistance column; 73, conductive ring; 74, adjustment rod; 75, connecting line. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0019] The present invention will be further described below in conjunction with the embodiments.

[0020] Example: Refer to Figures 1 to 8 , a packaging shell processing device for a Hall current sensor, comprising: The processing table 1, specifically, includes a horizontally arranged processing plate 11, a plurality of supporting legs 12 are fixedly connected to the lower end of the processing plate 11, and a foot pad 13 is fixedly connected to the lower end of each of the plurality of supporting legs 12, and the foot pad 13 is provided to ensure the stability of the processing table 1.

[0021] A conveying assembly 2 is provided at the upper end of the processing table 1. Specifically, the conveying assembly 2 includes a mounting groove 21 opened on the processing table 1, and a plurality of conveying rollers 22 are rotatably installed in the mounting groove 21. The plurality of conveying rollers 22 are coaxially fixedly connected with a rotating shaft 23 passing through the processing plate 11. A driving device for driving 23 to rotate is installed on the side wall of the processing table 1, which serves as a power source for conveying the outer shell of the plurality of conveying rollers 22.

[0022] The outer sides of the multiple rotating shafts 23 are all fixedly sleeved with the first sprockets 24, and the outer sides of the multiple first sprockets 24 are jointly rotatably sleeved with the first chains 25. The conveying roller 22 is installed in the installation groove 21 of the processing table 1, and the rotating shaft 23 passes through the processing plate 11. The first sprockets 24 and the first chains 25 are installed in sequence, and smooth chain transmission is ensured.

[0023] A shell to be processed is placed on the upper end of the conveying component 2, and a limit component 3 for guiding the shell to be processed is provided on the upper end of the conveying component 2. Specifically, the limit component 3 includes a limit groove 31 opened at the lower end of the processing table 1, and a bidirectional threaded rod 32 is rotatably arranged in the limit groove 31. A rotating motor 33 for driving the bidirectional threaded rod 32 to rotate is fixedly installed on the side wall of the processing table 1. The rod body of the bidirectional threaded rod 32 is symmetrically threadedly sleeved with two threaded sleeve blocks 34, and the lower end of the threaded sleeve block 34 is fixedly connected with a connecting rod 35, and the upper end of the connecting rod 35 is fixedly connected with a connecting block 36. The upper end of the processing table 1 is symmetrically fixedly connected with two fixed plates 37 with respect to the conveying component 2, and the opposite ends of the two connecting blocks 36 are fixedly connected with a plurality of sliding rods 38 passing through the fixed plate 37, and the opposite ends of the plurality of sliding rods 38 are commonly fixedly connected with the limit plate 39. The rotating motor 33 is started to drive the bidirectional threaded rod 32 to rotate. When the bidirectional threaded rod 32 rotates, the two threaded sleeves 34 symmetrically threadedly sleeved on the rod body will move relative to or away from each other along the axial direction of the threaded rod. The threaded sleeve 34 drives the connecting block 36 to move through the connecting rod 35, and the connecting block 36 drives the sliding rod 38 passing through the fixed plate 37 to move, thereby moving the limit plate 39 fixed at one end of the sliding rod 38, so as to adjust the distance between the two limit plates 39 to adapt to housings of different sizes.

[0024] The upper end of the processing table 1 is also provided with an automatic loading component 4 for conveying the shell to be processed to the upper end of the conveying component 2. Specifically, the automatic loading component 4 includes a conveyor belt 41, and the conveyor belt 41 is arranged perpendicular to the conveying direction of the conveying component 2, and the conveyor belt 41 can be fed uninterruptedly.

[0025] The upper end of the processing table 1 is provided with a pushing structure, specifically, the pushing structure includes a slide groove 42 opened at the upper end of the processing table 1, the slide groove 42 is slidably connected with a slide plate 43, a plurality of first return springs 431 are fixedly connected between the slide plate 43 and the slide groove 42, one end of the slide plate 43 close to the conveyor belt 41 is fixedly connected with two push rods 44, and one end of the two push rods 44 close to the conveyor belt 41 is commonly fixedly connected with a pushing plate 45, the upper end of the processing table 1 is symmetrically fixedly connected with two vertical plates 46 about the slide groove 42, an installation box 47 is provided between the two vertical plates 46, and the installation box 47 is connected to the conveyor belt 41. A plurality of support rods 48 are fixedly connected between the two vertical plates 46, a tooth plate 49 is slidably connected to the inner top wall of the installation box 47, a swing gear 410 meshing with the tooth plate 49 is rotatably connected to the inner side wall of the installation box 47, a rotating rod 412 is rotatably connected to the inner side wall of the installation box 47, an arc-shaped tooth 411 intermittently meshing with the tooth plate 49 and the swing gear 410 is fixed to the rod body of the rotating rod 412, a swing rod 414 is fixedly connected to the lower end of the swing gear 410, and a second sprocket 415 is fixedly sleeved on the rotating rod 412 and the outer side of one of the rotating shafts 23. The outer side of the sprocket 415 is sleeved with a second chain 416 for common rotation. The bottom wall of the installation box 47 is provided with a movable opening 413 for the swing rod 414 to swing. The limiting plate 39 near the transmission component 2 is fixedly connected with a U-shaped rod 417. The U-shaped rod 417 is fixedly connected with a positioning plate 418, and the position of the positioning plate 418 corresponds to that of the limiting plate 39. The rotating rod 412 rotates, and the arc-shaped teeth 411 on the body of the rotating rod 412 intermittently mesh with the swing gear 410 and the tooth plate 49. When the arc-shaped teeth 411 mesh with the swing gear 410, the swing gear 410 is driven to rotate. The swing rod 414 fixedly connected to the lower end of the swing gear 410 swings accordingly. When the arc-shaped tooth 411 meshes with the tooth plate 49, the tooth plate 49 slides on the top wall of the installation box 47 and meshes with the swing gear 410, thereby driving the swing gear 410 to rotate in the opposite direction, realizing the intermittent reciprocating swing of the swing rod 414. The swing rod 414 intermittently pushes the slide plate 43, and the slide plate 43 slides in the slide groove 42, compressing the first return spring 431. The slide plate 43 drives the push plate 45 through the push rod 44 to push the shell to be processed against the positioning plate 418 onto the conveying component 2, completing the intermittent loading process.

[0026] A positioning assembly 5 is provided at the upper end of the processing table 1 above the conveying assembly 2. Specifically, the positioning assembly 5 includes a U-shaped frame 51 fixedly connected to the upper end of the processing table 1. The U-shaped frame 51 is vertically symmetrically slidably penetrated and connected with a vertical rod 52. The vertical rod 52 includes a lifting rod 521 that penetrates the liquid tank 53. The lower end of the lifting rod 521 is fixedly connected with a thick rod 522. The lower end of the thick rod 522 is provided with a sliding cavity 523. The sliding cavity 523 contains a second magnetorheological fluid. The sliding cavity 523 is limitedly slidably connected with a telescopic rod 524. The lower end of the lifting rod 521 is provided with a guide groove connected to the sliding cavity 523. The upper end of the telescopic rod 524 is fixedly connected with a guide rod 525 slidably connected to the guide groove. A second return spring 526 is fixedly connected between the telescopic rod 524 and the sliding cavity 523, and the second return spring 526 is arranged on the outside of the guide rod 525 to prevent the second return spring 526 from easily undergoing elastic deformation.

[0027] The upper end of the U-shaped frame 51 is fixedly connected to a liquid box 53. A magnetic field generator is installed in the sliding cavity 523 and the liquid box 53 to generate a magnetic field near the magnetorheological fluid to cause a change in the viscosity of the magnetorheological fluid. The upper end of the vertical rod 52 passes through the liquid box 53, and the lower ends of the two vertical rods 52 are fixedly connected to a mounting plate 54. The lower end of the mounting plate 54 is rotatably connected to a positioning wheel 55. A third reset spring 56 is fixedly connected between the vertical rod 52 and the inner bottom wall of the liquid box 53. A first magnetorheological fluid 57 is arranged in the liquid box 53. In the absence of an external magnetic field, the magnetorheological fluid behaves like an ordinary liquid, with lower viscosity and better fluidity. When an external magnetic field acts, the magnetic particles form a chain structure or a more complex arrangement, resulting in a significant increase in the viscosity of the liquid. At this time, the liquid becomes more like a semi-solid substance, exhibiting behavior similar to that of a solid.

[0028] The polishing assembly 6, specifically, the polishing assembly 6 includes a connecting plate 61 fixedly connected to the upper sides of the two vertical rods 52, the lower end of the connecting plate 61 is fixedly connected to the equipment box 62, two driving shafts 63 are symmetrically penetrated through the bottom wall of the equipment box 62, and a polishing wheel 64 is coaxially fixedly installed on the lower end of the driving shaft 63, and a polishing motor 65 is fixedly installed in the equipment box 62, and the output shaft of the polishing motor 65 and the outer sides of the two driving shafts 63 are fixedly sleeved with a third sprocket 66, and the outer sides of the multiple third sprockets 66 are rotatably sleeved with a third chain 67, and the lower end surface of the third sprocket 66 is 0.01-0.05mm lower than the lower end surface of the positioning wheel 55, and the polished thickness is thinner, 0.01-0.05mm is the polished thickness.

[0029] The power automatic adjustment component 7 also includes a shell 71 fixedly connected to the U-shaped frame 51, a vertically arranged resistance column 72 is installed in the shell 71, the column body of the resistance column 72 is slidably sleeved with a conductive ring 73, the lower end of the conductive ring 73 is symmetrically fixedly connected with an adjustment rod 74, the lower ends of the two adjustment rods 74 are connected to the upper end of the mounting plate 54, the upper side of the resistance column 72 and the conductive ring 73 are connected with a connecting line 75, and the resistance column 72, the connecting line 75 and the polishing motor 65 form a closed loop, the polishing motor 65 is started, and the output shaft of the polishing motor 65 drives the third sprocket 66 to rotate, and the two drive shafts are driven by the third chain 67. 63 rotates synchronously, and the polishing wheel 64 at the lower end of the driving shaft 63 rotates at a high speed to polish the outer shell on the conveying component 2. During the polishing process, if the positioning wheel 55 rises a higher distance, it means that the protrusion on the outer shell surface is larger, and at this time the mounting plate 54 rises a greater distance. Since the mounting plate 54 is connected to the conductive ring 73 through the adjusting rod 74, the rising of the mounting plate 54 will drive the conductive ring 73 to slide upward on the resistor column 72, thereby reducing the resistance of the resistor column 72 connected to the circuit of the polishing motor 65. According to Ohm's law, the current in the circuit increases, and the power of the polishing motor 65 increases, thereby realizing automatic adjustment of the polishing power according to the actual situation of the outer shell surface.

[0030] The specific working principle of the present invention is as follows: When in use, firstly, according to the size of the package shell of the Hall current sensor to be processed, the rotating motor 33 is started to drive the bidirectional threaded rod 32 to rotate. When the bidirectional threaded rod 32 rotates, the two threaded sleeves 34 symmetrically threaded on the rod body will move relative to or away from each other along the axial direction of the threaded rod. The threaded sleeve 34 drives the connecting block 36 to move through the connecting rod 35, and the connecting block 36 drives the sliding rod 38 passing through the fixed plate 37 to move, thereby moving the limit plate 39 fixed at one end of the sliding rod 38, so as to adjust the distance between the two limit plates 39 to adapt to shells of different sizes and make it slightly larger than the width of the shell. The shells to be processed are neatly placed on the conveyor belt 41, and the conveyor belt 41 conveys the shells to a position close to the transmission assembly 2, and the positioning plate 418 abuts against the shells to be processed; When the transmission assembly 2 transports the shell, the rotating shaft 23 rotates (the rotation of the rotating shaft 23 is driven by an external power source, driving the first sprocket 24 and the first chain 25 to move, and then driving the conveying roller 22 to rotate), and the second sprocket 415 fixedly sleeved with the outer side of one of the rotating shafts 23 also rotates accordingly, and the second sprocket 415 drives the rotating rod 412 to rotate through the second chain 416, and the arc-shaped teeth 411 on the rod body of the rotating rod 412 intermittently mesh with the swing gear 410 and the tooth plate 49. When the arc-shaped teeth 411 mesh with the swing gear 410, the swing gear 410 is driven to rotate, and the swing rod 414 fixedly connected to the lower end of the swing gear 410 swings accordingly. When the tooth plate 411 is meshed with the tooth plate 49, the tooth plate 49 slides on the top wall of the installation box 47 and meshes with the swing gear 410, thereby driving the swing gear 410 to rotate in the opposite direction, realizing the intermittent reciprocating swing of the swing rod 414, and the swing rod 414 intermittently pushes the slide plate 43, and the slide plate 43 slides in the slide groove 42, compressing the first return spring 431, and the slide plate 43 drives the push plate 45 through the push rod 44 to push the shell to be processed against the positioning plate 418 onto the conveying component 2, completing the intermittent feeding process, and the U-shaped rod 417 connects the limit plate 39 with the positioning plate 418 to ensure that the positioning plate 418 corresponds to the limit plate 39, and ensures that the shell to be pushed is located between the two limit plates 39; Before polishing, that is, in the initial state, the second magnetorheological fluid in the sliding chamber 523 intervenes in the magnetic field and is in a solid state, while the first magnetorheological fluid in the liquid box 53 does not intervene in the magnetic field and is in a liquid state. When the shell to be processed is conveyed to the bottom of the positioning assembly 5, the positioning wheel 55 contacts the upper surface of the shell. According to the thickness of the shell, the positioning wheel 55 is subjected to different pressures. If the shell is thicker, the positioning wheel 55 will rise, driving the vertical rod 52 to rise as a whole. During the rising process of the vertical rod 52, the second return spring 526 in the sliding chamber 523 does not deform, and the third return spring 56 in the liquid box 53 is stretched. The rise of the vertical rod 52 drives the mounting plate 54 to rise. The mounting plate 54 is connected to the polishing assembly 6 through the connecting plate 61, and then the height of the polishing wheel 64 is adjusted, so that it can accurately polish shells of different thicknesses, ensuring that the thickness of each polishing is 0.01-0.05mm. After the height of the polishing wheel 64 is adjusted, a magnetic field is introduced into the liquid box 53 to make the first magnetorheological fluid therein solid, thereby fixing the position of the vertical rod 52 and ensuring the stability of the polishing wheel 64 during the polishing process. At the same time, the magnetic field in the sliding cavity 523 is removed to restore the second magnetorheological fluid in the sliding cavity 523 to a liquid state. At this time, the second reset spring 526 can play a buffering role to avoid the vibration caused by the uneven surface of the shell during the polishing process. The impact on the polishing effect, and in the polishing process, if the positioning wheel 55 rises a higher distance, it means that the bulge on the surface of the shell is larger, and the mounting plate 54 rises a greater distance at this time. Since the mounting plate 54 is connected to the conductive sheet 73 through the adjusting rod 74, the rise of the mounting plate 54 will drive the conductive sheet 73 to slide upward on the resistor column 72, so that the resistance of the circuit connected to the polishing motor 65 on the resistor column 72 is reduced. According to Ohm's law, the current in the circuit increases, and the power of the polishing motor 65 increases, thereby realizing automatic adjustment of the polishing power according to the actual situation of the shell surface, while ensuring the polishing quality and achieving the purpose of energy saving.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A packaging shell processing device for a Hall current sensor, characterized in that: include: A processing table (1), wherein a conveying component (2) is arranged at the upper end of the processing table (1), a shell to be processed is placed at the upper end of the conveying component (2), a limiting component (3) for guiding the shell to be processed is arranged at the upper end of the conveying component (2), an automatic loading component (4) for conveying the shell to be processed to the upper end of the conveying component (2) is also arranged at the upper end of the processing table (1), and a positioning component (5) and a polishing component (6) are arranged above the conveying component (2) at the upper end of the processing table (1); The automatic loading component (4) comprises a conveyor belt (41), and the conveyor belt (41) is arranged perpendicular to the conveying direction of the transmission component (2), and a pushing structure is arranged at the upper end of the processing table (1); The positioning assembly (5) comprises a U-shaped frame (51) fixedly connected to the upper end of the processing table (1); the U-shaped frame (51) is vertically symmetrically slidably penetrated by a vertical rod (52); the upper end of the U-shaped frame (51) is fixedly connected to a liquid box (53); the upper ends of the vertical rods (52) are arranged to pass through the liquid box (53); the lower ends of the two vertical rods (52) are commonly fixedly connected to a mounting plate (54); the lower end of the mounting plate (54) is rotatably connected to a positioning wheel (55); a third return spring (56) is fixedly connected between the vertical rod (52) and the inner bottom wall of the liquid box (53); and a first magnetorheological fluid (57) is arranged in the liquid box (53).

2. The device for processing a package shell for a Hall current sensor according to claim 1, characterized in that: The processing table (1) comprises a processing plate (11) arranged horizontally, a plurality of supporting legs (12) being fixedly connected to the lower end of the processing plate (11), and a foot pad (13) being fixedly connected to the lower ends of the plurality of supporting legs (12).

3. The device for processing a package shell for a Hall current sensor according to claim 2, characterized in that: The conveying assembly (2) comprises a mounting groove (21) opened on the processing table (1), a plurality of conveying rollers (22) being rotatably mounted in the mounting groove (21), the plurality of conveying rollers (22) being coaxially fixedly connected to a rotating shaft (23) passing through the processing plate (11), the outer sides of the plurality of rotating shafts (23) being fixedly sleeved with a first sprocket (24), and the outer sides of the plurality of first sprockets (24) being rotatably sleeved with a first chain (25).

4. The device for processing a package shell for a Hall current sensor according to claim 3, characterized in that: The limiting assembly (3) comprises a limiting groove (31) provided at the lower end of the processing table (1), a bidirectional threaded rod (32) being rotatably arranged in the limiting groove (31), a rotating motor (33) for driving the bidirectional threaded rod (32) to rotate being fixedly mounted on the side wall of the processing table (1), two threaded sleeve blocks (34) being symmetrically threadedly sleeved on the rod body of the bidirectional threaded rod (32), a connecting rod (35) being fixedly connected to the lower end of the threaded sleeve block (34), a connecting rod (35) being fixedly connected to the upper end of the connecting rod (35) being fixedly connected to a connecting block (36), the upper end of the processing table (1) being symmetrically fixedly connected to two fixing plates (37) with respect to the conveying assembly (2), a plurality of sliding rods (38) passing through the fixing plate (37) being fixedly connected to the opposite ends of the two connecting blocks (36), and a plurality of sliding rods (38) being fixedly connected to the limiting plate (39) at opposite ends thereof.

5. The device for processing a package shell for a Hall current sensor according to claim 4, characterized in that: The pusher structure comprises a slide groove (42) provided at the upper end of the processing table (1), the slide groove (42) being slidably connected to a slide plate (43), a plurality of first return springs (431) being fixedly connected between the slide plate (43) and the slide groove (42), two push rods (44) being fixedly connected to one end of the slide plate (43) close to the conveyor belt (41), a pusher plate (45) being fixedly connected to one end of the two push rods (44) close to the conveyor belt (41), two vertical plates (46) being fixedly connected to the upper end of the processing table (1) symmetrically with respect to the slide groove (42), an installation box (47) being provided between the two vertical plates (46), a plurality of support rods (48) being fixedly connected between the installation box (47) and the two vertical plates (46), a tooth plate (49) being slidably connected to the inner top wall of the installation box (47), and a swing plate (49) being rotatably connected to the inner side wall of the installation box (47) being meshed with the tooth plate (49). The inner side wall of the installation box (47) is rotatably connected to a rotating rod (412); the rod body of the rotating rod (412) is fixed with arc-shaped teeth (411) that intermittently mesh with the tooth plate (49) and the swing gear (410); the lower end of the swing gear (410) is fixedly connected to a swing rod (414); the rotating rod (412) and the outer side of one of the rotating shafts (23) are jointly fixedly sleeved with a second sprocket (415); the outer sides of the two second sprockets (415) are jointly rotatably sleeved with a second chain (416); the bottom wall of the installation box (47) is provided with a movable opening (413) for the swing rod (414) to swing; the limiting plate (39) close to the transmission component (2) is fixedly connected to a U-shaped rod (417); the U-shaped rod (417) is fixedly connected to a positioning plate (418); and the positioning plate (418) corresponds to the position of the limiting plate (39).

6. The device for processing a package shell for a Hall current sensor according to claim 1, characterized in that: The vertical rod (52) comprises a lifting rod (521) penetrating the liquid box (53); the lower end of the lifting rod (521) is fixedly connected to a thick rod (522); the lower end of the thick rod (522) is provided with a sliding cavity (523); a second magnetorheological fluid is arranged in the sliding cavity (523); the sliding cavity (523) is limitedly slidably connected to a telescopic rod (524); the lower end of the lifting rod (521) is provided with a guide groove communicating with the sliding cavity (523); the upper end of the telescopic rod (524) is fixedly connected to a guide rod (525) slidably connected to the guide groove; a second return spring (526) is fixedly connected between the telescopic rod (524) and the sliding cavity (523); and the second return spring (526) is arranged on the outside of the guide rod (525).

7. The device for processing a package shell for a Hall current sensor according to claim 5, characterized in that: The polishing assembly (6) comprises a connecting plate (61) fixedly connected to the upper sides of the two vertical rods (52); the lower end of the connecting plate (61) is fixedly connected to an equipment box (62); two driving shafts (63) are symmetrically provided through the bottom wall of the equipment box (62); a polishing wheel (64) is coaxially fixedly installed at the lower end of the driving shaft (63); a polishing motor (65) is fixedly installed in the equipment box (62); the output shaft of the polishing motor (65) and the outer sides of the two driving shafts (63) are fixedly sleeved with a third sprocket (66); the outer sides of the plurality of third sprockets (66) are rotatably sleeved with a third chain (67); and the lower end surface of the third sprocket (66) is lower than the lower end surface of the positioning wheel (55).

8. The device for processing a package shell for a Hall current sensor according to claim 5, characterized in that: The invention also comprises an automatic power adjustment component (7), the automatic power adjustment component (7) comprising a housing (71) fixedly connected to the U-shaped frame (51), a vertically arranged resistance column (72) being installed in the housing (71), a column body of the resistance column (72) being slidably sleeved with a conductive ring (73), the lower end of the conductive ring (73) being symmetrically fixedly connected with an adjustment rod (74), the lower ends of the two adjustment rods (74) being connected to the upper end of the mounting plate (54), the upper side of the resistance column (72) and the conductive ring (73) being connected with a connecting wire (75), and the resistance column (72), the connecting wire (75) and the polishing motor (65) forming a closed loop.

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