An assembly device and assembly method for a sensor core.

Abstract

This invention provides an assembly device for a sensor core, belonging to the field of sensor assembly technology. The assembly device includes a housing and a processing table rotatably mounted on the housing. A pressing head is placed on the processing table, and a core is placed on the pressing head. A wire is installed on the upper surface of the core. The device also includes a pressing mechanism, which includes a first control plate. A lower pressing cylinder is slidably disposed at the bottom of the first control plate, and a clearance groove is provided at the lower end of the lower pressing cylinder. This invention, during core installation, first moves the wire on the core closer to the clearance groove, ensuring that the wire is avoided when pressing the core downwards, thus pressing the core into the pressing head and preventing damage to the wire. Simultaneously, when installing the pressure ring to fix the core, the wire can be pulled upwards, ensuring that the pressure ring passes through the wire normally, preventing damage or breakage of the wire due to compression or twisting.

Description

Technical Field

[0001] This invention belongs to the field of sensor assembly technology, specifically relating to an assembly device and method for a sensor core. Background Technology

[0002] The sensor core is the core functional component of a sensor that enables "signal conversion," essentially acting as the sensor's "brain and nerve center." Common sensor core assembly devices, such as crimping devices, work by using a power source to drive crimping components to crimp and assemble the sensor core, thereby pressing the sensor core into the designated position.

[0003] Chinese patent CN114290038B discloses a process equipment for assembling the pressure core of a pressure sensor's sensitive component. The equipment includes a base, a support column, a cylinder, a tip, a fixed hexagonal joint, a fastening wrench, a pressure regulating valve, and a switching valve. The support column secures the base and cylinder with nuts and threaded holes, respectively. The tip is mounted on the top of the cylinder piston rod. The fixed hexagonal joint, corresponding to the sensitive component structure, is mounted on the base. The fastening wrench is placed between the product and the tip to bear the downward clamping force of the tip and the radial tightening force applied to the product by the torque wrench. The cylinder is connected to the switching valve via a pipeline, and the pressure regulating valve is connected to the pressure regulating valve via another pipeline. The pressure regulating valve is then connected to a drive air source. The thread tightening action only requires operating the torque wrench, and a single person can complete the installation of 120 products in less than an hour without any product damage.

[0004] However, the above technical solutions still have the following problems: most cores have connecting wires, which are the signal channels between the core and the external circuit. When the core is installed, interference can easily occur between the installation equipment and the wires. The wires can be squeezed or twisted during installation, causing them to break or break. Moving the wires manually to a position that does not interfere with the normal operation of the installation equipment is time-consuming and laborious, resulting in low installation efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide an assembly device and method for a sensor core, which aims to solve the problem in the prior art that the wires connected to the sensor core are easily squeezed or twisted during installation, resulting in damage or breakage and sensor failure.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an assembly device for a sensor core, comprising a housing and a processing table rotatably mounted on the housing, wherein a pressure head is placed on the processing table, a core is placed on the pressure head, and a wire is mounted on the upper surface of the core, and further comprising:

[0007] The pressing mechanism is located on one side of the housing. The pressing mechanism includes a first control plate, a pressing cylinder is slidably arranged at the bottom of the first control plate, and a clearance groove is provided at the lower end of the pressing cylinder.

[0008] The wire-picking mechanism is installed on the pressing mechanism. The wire-picking mechanism includes a wire-picking frame and two wire plates that are slidably mounted on the wire-picking frame. The wire-picking frame is symmetrically arranged on the side of the first control plate away from the relief groove. A spring is connected to the side of the wire plates that are away from each other. The other end of the spring is connected to the wire-picking frame. Inclined surfaces are symmetrically arranged on both sides of the wire plates. The end face lines of the inclined surfaces that are away from each other are vertically arranged along the length of the lower pressing cylinder. Initially, the surfaces of the two wire plates that are close to each other are in contact, so that the inclined surfaces of the wire plates are combined to form a pointed cone structure. A first guide groove is provided at the bottom of the first control plate. The top of the wire-picking frame is slidably mounted inside the first guide groove. When the wire plates move along the lower pressing cylinder, the surfaces of the two wire plates that are close to each other are always in contact with the outer side of the lower pressing cylinder and the outer side of the core, clamping the wire between the two wire plates and placing the wire directly below the relief groove.

[0009] A further technical solution of the present invention is that the wire-picking mechanism further includes a wire-leading structure mounted on a processing table. Multiple mounting slots are evenly arranged on the upper surface of the processing table. The wire-leading structure is located below the mounting slots. The wire-leading structure includes a wire-leading plate mounted on the bottom surface of the processing table. A second push plate is slidably arranged on one side of the wire-leading plate. A fourth driving device is mounted on the processing table to drive the second push plate to move up and down. Two limiting posts are slidably connected to the second push plate, and the limiting posts are symmetrically arranged on both sides of the mounting slots. A second guide groove is arranged on the wire-leading plate along the moving direction of the second push plate, and the two second guide grooves gradually approach each other towards the mounting slots. A guide post is provided on the limiting post, sliding back and forth within the second guide groove. An arc-shaped plate is provided at the end of the limiting post near the mounting slot, and the arc-shaped plates on the two limiting posts are arranged crosswise.

[0010] A further technical solution of the present invention is that the pressing mechanism further includes a first control device placed on one side of the housing, a first control plate installed above the first control device, and the first control device can control the first control plate to rotate on a fixed axis and move up and down. The lower pressing cylinder is hollow and its bottom diameter is consistent with the diameter of the upper surface of the core. A first driving device for driving the lower pressing cylinder to move up and down is installed above the first control plate. A guide cylinder is slidably sleeved on the outside of the lower pressing cylinder. The guide cylinder is hollow and its inner wall diameter is consistent with the side diameter above the elastic sealing ring of the core. A second driving device for driving the guide cylinder to move up and down along the outer wall of the lower pressing cylinder is installed above the first control plate. A clearance groove is provided at the lower end of the guide cylinder, and the positions of the clearance groove on the lower pressing cylinder and the guide cylinder are vertically aligned.

[0011] A further technical solution of the present invention is that a first push plate is slidably disposed at the bottom of the first control board, the end of the wire-picking frame away from the lower pressure cylinder is slidably mounted on the first push plate, a third driving device for driving the first push plate to reciprocate is installed below the first control board, and a wire guide plate is slidably mounted at the lower end of the wire-picking frame.

[0012] A further technical solution of the present invention is that a fixing mechanism is provided on one side of the housing. The fixing mechanism includes a second control device placed on one side of the housing. A second control plate is installed above the second control device. The second control device can control the second control plate to rotate on a fixed axis and move up and down. A lifting column is installed at the bottom of the second control plate. Two clamping blocks are rotatably installed at the bottom of the lifting column. The two clamping blocks are symmetrically arranged. When the side of the clamping blocks that is close to each other is kept vertical, the side that is away from each other is inclined. The side of the clamping blocks that is close to each other is made of flexible material. A torsion spring is connected to the rotating shaft of the clamping block. The other end of the torsion spring is connected to the bottom of the lifting column.

[0013] A further technical solution of the present invention is that a lifting plate is slidably arranged on the lifting column, a fifth driving device for driving the lifting plate to move up and down along the lifting column is installed above the second control plate, a rotating cylinder is slidably sleeved on the outside of the lifting column, a first gear is arranged on the rotating cylinder, a second gear that meshes with the first gear is rotatably arranged at the bottom of the lifting plate, and a motor for driving the second gear and the first gear to rotate synchronously is installed above the lifting plate.

[0014] A further technical solution of the present invention is that a pressure ring is connected to the bottom of the rotating drum, the outer wall of the pressure ring is threaded to the inner wall of the pressure head, a groove is provided on the upper surface of the pressure ring, and a protrusion matching the groove on the upper surface of the pressure ring is provided at the bottom of the rotating drum. The pressure ring is made of an alloy material that is easily attracted by a magnet, and the bottom of the rotating drum is magnetic.

[0015] A further technical solution of the present invention is that an elastic sealing ring is provided on the outer surface of the core body.

[0016] A method for assembling a sensor chip includes the following steps:

[0017] S1. When installing the core, first place the infeed head into the installation slot in sequence, and then rotate the processing table to the next station at a fixed angle each time to place the core on the upper end of the infeed head.

[0018] S2. When the core moves to the pressing mechanism position, the first push plate on the wire-pulling mechanism is moved, and the wires on the core are pushed to one side and clamped and straightened by the two wire plates installed on the wire-pulling frame.

[0019] S3. The pressing mechanism works, the guide cylinder moves down and limits the core and acts as a guide, and then the pressing cylinder presses the core down and presses the core into the pressing head.

[0020] S4. The pressing mechanism moves upward away from the sensor, the lead wire structure moves upward and limits the lead wire. After the lead wire plate is reset, the lead wire structure continues to move upward, guiding the lead wire upward until the lead wire is in a vertical state and then stops moving.

[0021] S5. The core moves to the fixed mechanism position, the clamping block on the fixed mechanism clamps and fixes the end connector of the wire, then the rotating drum moves down and drives a pressure ring through the wire, and the pressure ring is installed into the inside of the pressure head to fix the core.

[0022] S6. The processing table continues to rotate, taking the assembled sensor core out of the mounting slot. Then, the next set of pressure heads without installed cores is placed into the mounting slot for the next core installation.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] 1. This invention, when installing the core, first moves the wire on the core closer to the relief groove to ensure that the wire can be avoided when pressing the core downward, so that the core can be pressed into the pressure head and the wire can be prevented from being crushed. At the same time, when installing the pressure ring to fix the core, the wire can be pulled upward to ensure that the pressure ring can pass through the wire normally, preventing the wire from being damaged or broken after being squeezed or twisted.

[0025] 2. The pressing mechanism is equipped with a guide cylinder, which can limit and guide the core before pressing it down, so that the core can be pressed vertically into the pressing head. This prevents the core from shifting during the pressing process, which would cause the sealing ring to twist and damage the sealing integrity. At the same time, it reduces the measurement error caused by the core shifting. Attached Figure Description

[0026] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0027] Figure 1 This is a schematic diagram of the overall structure of a specific embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of a specific embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the processing table and pressing mechanism in a specific embodiment of the present invention;

[0030] Figure 4 for Figure 3 Enlarged structural diagram at point B;

[0031] Figure 5 This is a schematic diagram of the pressing mechanism and the wire-pulling mechanism in a specific embodiment of the present invention;

[0032] Figure 6 This is a partial schematic diagram of the wire-pulling mechanism in a specific embodiment of the present invention;

[0033] Figure 7 for Figure 2 Enlarged structural diagram at point A;

[0034] Figure 8 This is a schematic diagram of the fixing mechanism in a specific embodiment of the present invention;

[0035] Figure 9 This is a partial sectional view of the fixing mechanism in a specific embodiment of the present invention;

[0036] Figure 10 This is a schematic diagram of the installation structure of the clamping block in a specific embodiment of the present invention.

[0037] In the diagram: 1. Housing; 2. Processing table; 21. Mounting slot; 3. Core; 31. Press head; 32. Wire; 33. Pressure ring; 4. Pressing mechanism; 41. First control device; 411. First control board; 412. First guide groove; 42. Lowering cylinder; 421. Relief groove; 43. First drive device; 44. Guide cylinder; 45. Second drive device; 5. Wire picking mechanism; 51. Wire picking frame; 52. Wire plate; 53. First push plate; 54. Third drive device 55. Spring; 6. Fixing mechanism; 61. Second control device; 611. Second control board; 612. Lifting column; 613. Clamping block; 614. Torsion spring; 62. Lifting plate; 63. Fifth drive device; 64. Rotary drum; 641. First gear; 642. Second gear; 65. Motor; 7. Lead plate; 71. Second push plate; 72. Fourth drive device; 73. Limiting column; 731. Guide column; 732. Arc plate; 74. Second guide groove. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Please see Figures 1-10 The present invention provides the following technical solution: an assembly device for a sensor core, comprising a housing 1, a processing table 2, a core 3, a pressing mechanism 4, a wire pulling mechanism 5, and a fixing mechanism 6;

[0040] The housing 1 is placed horizontally on the ground. The processing table 2 is rotatably mounted on the housing 1. The fixed-axis rotation of the processing table 2 continuously places the sensor's inlet head 31 onto the upper surface of the processing table 2. Then, the core 3 is placed into the mounting position of the inlet head 31. The pressing mechanism 4 is located on one side of the housing 1. The wire pulling mechanism 5 is mounted on the pressing mechanism 4. When the processing table 2 rotates the inlet head 31 with the core 3 in place to the pressing mechanism 4, the position of the wire 32 mounted on the upper surface of the core 3 is uncertain. The wire pulling mechanism 5 can pull the wire 32 in a fixed direction to ensure that the wire 32 always faces one direction when the pressing mechanism 4 is working, so that the pressing mechanism 4 can press the core 3 into the inlet head 31. The fixing mechanism 6 is located on one side of the housing 1. When the core 3 pressed into the inlet head 31 rotates to the fixing mechanism 6, the fixing mechanism 6 locks the core 3 inside the inlet head 31 to prevent the core 3 from shifting and ensure the stability of the measurement position.

[0041] Please see Figure 2 , Figure 4 and Figure 6 The housing 1 is equipped with a control device (not shown in the figure) that drives the machining table 2 to rotate on a fixed axis. Multiple mounting slots 21 are evenly arranged on the upper surface of the machining table 2. When working, the machining table 2 rotates to the designated position and puts the pressure head 31 into the mounting slot 21. The mounting slot 21 limits the pressure head 31. The pressure head 31 is hollow. The machining table 2 continues to rotate to the next station and places the core 3 above the pressure head 31. The outer surface of the core 3 is provided with an elastic sealing ring, and the elastic sealing ring can just be stuck on the upper surface of the pressure head 31. After the core 3 is placed, the machining table 2 rotates to the position of the pressing mechanism 4.

[0042] Please see Figures 2-5The pressing mechanism 4 includes a first control device 41 placed on one side of the housing 1. A first control plate 411 is mounted above the first control device 41. The first control device 41 can control the first control plate 411 to rotate on a fixed axis and move up and down. When the processing table 2 drives the mounting groove 21, which has held the core 3, to rotate to the position of the pressing mechanism 4, the first control device 41 controls the first control plate 411 to move directly above the core 3. A lower pressing cylinder 42 is slidably disposed at the bottom of the first control plate 411. The lower pressing cylinder 42 is hollow and its bottom diameter is consistent with the diameter of the upper surface of the core 3. A first drive device 43 is mounted above the control board 411. The output end of the first drive device 43 is connected to the lower pressure cylinder 42. The first drive device 43 can drive the lower pressure cylinder 42 to move up and down. A guide cylinder 44 is slidably sleeved on the outside of the lower pressure cylinder 42. The guide cylinder 44 is hollow and its inner wall diameter is consistent with the side diameter above the elastic sealing ring on the outside of the core 3. A second drive device 45 is mounted above the first control board 411. The output end of the second drive device 45 is connected to the guide cylinder 44. The second drive device 45 can drive the guide cylinder 44 to move up and down along the outer wall of the lower pressure cylinder 42. The lower end of both the lower pressure cylinder 42 and the guide cylinder 44 is provided with a relief groove 421 on one side. The positions of the relief grooves 421 on the lower pressure cylinder 42 and the guide cylinder 44 are aligned vertically. When the lower pressure cylinder 42 moves downward, the wire 32 on the core 3 can be placed in the relief groove 421 to avoid being crushed.

[0043] When pressing the core 3, the second drive device 45 is first activated, causing the guide cylinder 44 to move downwards and approach the outer side of the core 3 until the guide cylinder 44 contacts the elastic sealing ring on the side wall of the core 3. At this time, the inner wall of the guide cylinder 44 can guide the core 3 when the pressing cylinder 42 presses down on the core 3, preventing the core 3 from tilting or shifting downwards. Then, the first drive device 43 is activated, and the pressing cylinder 42 moves downwards and approaches the upper surface of the core 3. After contacting the upper surface of the core 3, the core 3 is pressed downwards into the inside of the pressing head 31.

[0044] Please see Figures 3-5The wire-picking mechanism 5 includes a wire-picking frame 51 and two guide plates 52 mounted on the wire-picking frame 51. The wire-picking frame 51 is symmetrically arranged on the side of the first control plate 411 away from the relief groove 421. A first push plate 53 is slidably arranged at the bottom of the first control plate 411, and the end of the wire-picking frame 51 away from the lower pressure cylinder 42 is slidably mounted on the first push plate 53. A third drive device 54 is installed below the first control plate 411. The output end of the third drive device 54 is connected to the first push plate 53. The third drive device 54 can drive the first push plate 53 to reciprocate, moving closer to or away from the lower pressure cylinder 42. The lead plate 52 is slidably mounted on the lower end of the wire-picking frame 51. A spring 55 is connected to the side of the two lead plates 52 that is far apart from each other. The other end of the spring 55 is connected to the wire-picking frame 51. Initially, the surfaces of the two lead plates 52 that are close to each other are in contact. The two sides of the lead plate 52 are symmetrically provided with inclined surfaces, and the end face lines of the inclined surfaces on both sides of the lead plate 52 that are far apart from each other are vertically arranged along the length direction of the lower pressure cylinder 42. When the two lead plates 52 are in contact, the inclined surfaces of the two lead plates 52 can be combined to form a pointed cone structure. The bottom of the first control plate 411 is provided with a first guide groove 412 along the moving direction of the first push plate 53. The top of the wire-picking frame 51 is slidably mounted inside the first guide groove 412. By providing the first guide groove 412, it is ensured that when the lead plates 52 move on the lower pressure cylinder 42, the surfaces of the two lead plates 52 that are close to each other are always in contact with the outer surface of the lower pressure cylinder 42 and the outer surface of the core 3.

[0045] Before the pressing mechanism 4 operates, it first lowers the pressing cylinder 42 to a certain height, leaving a gap between the pressing cylinder 42 and the core 3 for placing the wire 32. At this time, the vertical length of the wire plate 52 is greater than the gap between the pressing cylinder 42 and the core 3. Then, the third driving device 54 is driven to push the first push plate 53 to bring the wire plate 52 closer to the pressing cylinder 42. Since the bottom diameter of the pressing cylinder 42 is the same as the upper surface diameter of the core 3, the wire plate 52 simultaneously contacts the outer surfaces of the pressing cylinder 42 and the core 3. At this time, the wire 32 on the core 3 is pushed to one side of one of the wire plates 52 by the action of the inclined surfaces of the wire plates 52 forming a pointed cone structure. Then, it is pushed into the first guide groove 412. Under the action of the first guide plate 412, the two guide plates 52 move away from each other while moving, and the surfaces of the two guide plates 52 on one side simultaneously contact the outer surfaces of the pressing cylinder 42 and the core 3. The wire 32 is then pushed closer to the relief groove 421. When the guide plate 52 continues to move to the side closer to the relief groove 421, the two guide plates 52 contact each other again under the action of the first guide groove 412. At this time, the wire 32 is clamped between the two guide plates 52. Since the guide plate 52 is connected to the spring 55, it prevents the wire 32 from being pinched and damaged while clamping the wire 32. The first push plate 53 continues to move, and the wire 32 is gradually straightened. At this time, the relief groove 421 is just above the wire 32. Then the pressing mechanism 4 works, the pressing cylinder 42 and the guide cylinder 44 move downward and make the wire 32 enter the relief groove 421, ensuring that the pressing cylinder 42 moves downward and presses the core 3 downward into the pressing head 31.

[0046] Please see Figure 2 , Figure 3 , Figure 6 and Figure 7The wire-pulling mechanism 5 also includes a wire-leading structure installed on the processing table 2. The wire-leading structure is located below the mounting groove 21. The wire-leading structure includes a wire-leading plate 7 installed on the bottom surface of the processing table 2. A second push plate 71 is slidably arranged on one side of the wire-leading plate 7. A fourth driving device 72 is installed on the processing table 2. The output end of the fourth driving device 72 is connected to the second push plate 71. The fourth driving device 72 can drive the second push plate 71 to move up and down, moving it closer to the mounting groove 21 or further away from it. Two limiting posts 73 are slidably connected on the second push plate 71, and the limiting posts 73 are symmetrically arranged on both sides of the mounting groove 21. A second guide groove 74 is provided on the wire-leading plate 7 along the moving direction of the second push plate 71, and the two second guide grooves 74 gradually approach each other in the direction of approaching the mounting groove 21. The limiting post 73 is provided with a guide post 731 that slides back and forth inside the second guide groove 74. An arc plate 732 is provided at one end of the limiting post 73 near the mounting groove 21. The arc plates 732 on the two limiting posts 73 are arranged crosswise. In the initial state, the arc plates 732 are located below the upper surface of the mounting groove 21. At this time, the two arc plates 732 do not contact each other. When the second push plate 71 moves upward, the limiting posts 73 approach each other under the action of the second guide groove 74, and at the same time drive the arc plates 732 to move synchronously until the two ends of the arc plates 732 contact each other. At this time, the inner arc surfaces of the two arc plates 732 and the contact parts at both ends together enclose a closed space. Then the arc plates 732 continue to approach each other and the closed space gradually becomes smaller.

[0047] After the core 3 is pressed into the infeed head 31, the pressing mechanism 4 moves upward. At this time, the wire 32 is still held by the wire plate 52. The fourth drive device 72 is activated and drives the limiting post 73 upward through the second push plate 71. The limiting post 73 approaches the second guide groove 74 and the guide post 731 and makes the two arc plates 732 contact each other to form a closed space. At this time, the arc plate 732 is located below the wire 32. Then the wire plate 52 moves in the opposite direction and releases the wire 32. At this time, the wire 32 falls and rests on the upper surface of the infeed head 31 until the wire plate 52 moves to the initial position. The processing table 2 rotates to the next station, and then the arc plate 73... 2. Continue moving upwards to the upper surface of the pressure head 31 and continue to move closer to each other, so that the enclosed space gradually becomes smaller and the wire 32 is confined within the enclosed space and clamped, until the arc plate 732 moves upwards until the wire 32 is in a vertical state and then stops moving. At this time, the arc plate 732 just moves to below the end connector of the wire 32. The cross-section of the enclosed space formed by the inner arc surface of the arc plate 732 and the contact parts at both ends is smaller than the cross-section of the end connector of the wire 32, and the cross-section of the end connector of the wire 32 is larger than the cross-section of the wire 32. This can limit the end connector of the wire 32 and prevent the wire 32 from falling between the two arc plates 732.

[0048] Please see Figure 2 and Figures 7-10The fixing mechanism 6 includes a second control device 61 placed on one side of the housing 1. The second control device 61 is spaced one station apart from the first control device 41. A second control plate 611 is installed above the second control device 61. The second control device 61 can control the second control plate 611 to rotate on a fixed axis and move up and down. When the core 3, after the wire 32 is pulled upwards through the lead wire structure until it is in a vertical position, is rotated to the position of the pressing mechanism 4, the second control device 61 can control the second control plate 611 to move directly above the core 3. A lifting column 612 is installed at the bottom of the second control plate 611. Two clamping blocks 613 are rotatably installed at the bottom of the lifting column 612. The two clamping blocks 613 are symmetrically arranged. When the side of the clamping blocks 613 that is close to each other is kept vertical, the side that is away from each other is inclined. The side of the clamping blocks 613 that is close to each other is made of a flexible material. The flexible material can be rubber, silicone, sponge or flexible fiber, etc., which have a certain elasticity and deformation ability. A torsion spring 614 is connected to the rotating shaft of the clamping block 613. The other end of the torsion spring 614 is connected to the bottom of the lifting column 612. Since the rotating shaft of the clamping block 613 is located above it, the torsion spring 614 causes the lower ends of the clamping blocks 613 to move away from each other when no external force is applied. A lifting plate 62 is slidably mounted on the lifting column 612. A fifth drive device 63 is installed above the second control plate 611. The output end of the fifth drive device 63 is connected to the upper surface of the lifting plate 62, and the lifting plate 62 can be driven by the fifth drive device 63. The lifting column 612 moves up and down. A rotating drum 64 is slidably sleeved on the outside of the lifting column 612. A first gear 641 is provided on the rotating drum 64. A second gear 642 that meshes with the first gear 641 is rotatably provided at the bottom of the lifting plate 62. A motor 65 is installed on the top of the lifting plate 62. The output end of the motor 65 is connected to the second gear 642. The motor 65 can drive the second gear 642 and the first gear 641 to rotate synchronously, thereby driving the rotating drum 64 to rotate along the fixed axis of the outer wall of the lifting column 612. A pressure ring 33 is connected to the bottom of the rotating drum 64. The outer wall of the pressure ring 33 is threaded to the inner wall of the pressure head 31, allowing it to be installed inside the pressure head 31 via a threaded connection. It is located above the core 3, which can further fix it. When the core 3 rotates to the position of the fixing mechanism 6, the second control plate 611 is first moved to the storage position of the pressure ring 33 by the second control device 61, and a pressure ring 33 is installed at the bottom of the rotating drum 64. The upper surface of the pressure ring 33 is provided with a groove, and the bottom of the rotating drum 64 is provided with a protrusion that matches the groove on the upper surface of the pressure ring 33. The pressure ring 33 is made of an alloy material that is easily attracted by a magnet, and the bottom of the rotating drum 64 is magnetic, so that the pressure ring 33 can be attracted by the bottom of the rotating drum 64 to prevent it from falling off.

[0049] When the core 3 rotates to the position of the fixing mechanism 6, the second control plate 611 moves to the position where the pressure ring 33 is placed. Then the rotating cylinder 64 moves downward and pushes the clamping block 613 downward, causing the two clamping blocks 613 to rotate towards each other. The torsion spring 614 is twisted by force. Finally, the clamping block 613 is pushed into the rotating cylinder 64. At this time, the two clamping blocks 613 are closest to each other, and the surfaces on the side that are close to each other remain parallel and vertical. After the pressure ring 33 is limited and attracted to the bottom of the rotating cylinder 64, the rotating cylinder 64 moves upward. Under the action of the torsion spring 614, the clamping block 613 is reset. At this time, the inclined surface of the two clamping blocks 613 on the side away from each other can just contact the pressure ring 33 to provide auxiliary support for the pressure ring 33. Subsequently, the second control device 61 controls the second control plate 611 to move above the end connector of the wire 32, adjusting the height of the second control plate 611 so that the two clamping blocks 613 are just located on both sides of the end connector of the wire 32. At this time, the lifting plate 62 drives the rotating drum 64 to move downward again, pushing the clamping blocks 613 downward. While the clamping blocks 613 rotate towards each other, they can clamp the end connector of the wire 32. The side of the clamping blocks 613 that are close to each other is made of flexible material to avoid crushing the connector. Then the lead wire structure moves downward and releases the connector. At this time, the wire 32 remains vertical under the action of the clamping blocks 613, allowing the pressure ring 33 to pass through the wire 32 normally and fall into the pressure head 31. Then, the motor 65 is started to control the rotating drum 64 to rotate, driving the pressure ring 33 to be installed into the pressure head 31 through the threaded connection and then fixing the core 3.

[0050] After the sensor is fixed, the rotating drum 64 is moved upward by the lifting plate 62. The two clamping blocks 613 are reset and the connectors at the ends of the wires 32 are released. At this time, the sensor part has been assembled. The processing table 2 is rotated to the next station, and the assembled sensor is taken out by manual labor or the matching material handling device.

[0051] A method for assembling a sensor chip includes the following steps:

[0052] S1. When installing the core 3, first place the pressure head 31 into the mounting slot 21 in sequence. Then, the processing table 2 rotates at a fixed angle to the next station each time and places the core 3 on the upper end of the pressure head 31.

[0053] S2. When the core 3 moves to the position of the pressing mechanism 4, the first push plate 53 on the wire-pulling mechanism 5 is moved, and the wire 32 on the core 3 is pushed to one side and clamped and straightened by the two wire plates 52 installed on the wire-pulling frame 51.

[0054] S3. Pressing mechanism 4 works, guide cylinder 44 moves down and limits the core 3 and acts as a guide, then pressing cylinder 42 presses down on the core 3 and presses the core 3 into the inside of the pressing head 31.

[0055] S4. Pressing mechanism 4 moves upward away from sensor, lead wire structure moves upward and limits lead wire 32, lead wire plate 52 is reset and lead wire structure continues to move upward, guiding lead wire 32 upward until lead wire 32 is kept vertical and then stops moving.

[0056] S5. The core 3 moves to the position of the fixing mechanism 6. The clamping block 613 on the fixing mechanism 6 clamps and fixes the end connector of the wire 32. Then the rotating drum 64 moves down and drives a pressure ring 33 through the wire 32. After the pressure ring 33 is installed into the pressure head 31, the core 3 is fixed.

[0057] S6. The processing table 2 continues to rotate, and the sensor with the assembled core 3 is taken out from the mounting slot 21. Then, the next set of pressure heads 31 without the core 3 is placed into the mounting slot 21 to carry out the next core 3 installation work.

Claims

1. An assembly device for sensor core, comprising a housing (1) and a processing table (2) rotatably installed on the housing (1), an entering press head (31) is placed on the processing table (2), a core (3) is placed on the entering press head (31), and a wire (32) is surface-mounted on the core (3), characterized in that, Also include: Pressing mechanism (4) is arranged in the shell (1) one side, pressing mechanism (4) includes the first control board (411), the first control board (411) bottom slidingly provided with the lower pressing cylinder (42), the lower pressing cylinder (42) lower end is provided with the let one place groove (421); Wire dialing mechanism (5) is installed on the pressing mechanism (4), wire dialing mechanism (5) includes wire dialing frame (51) and two wire guide plates (52) slidingly installed on wire dialing frame (51), wire dialing frame (51) is symmetrically arranged on the side of the first control board (411) away from the let one place groove (421), the wire guide plate (52) is connected with the spring (55) on the side away from each other, the other end of the spring (55) is connected with the wire dialing frame (51), the wire guide plate (52) is symmetrically provided with inclined surface on both sides, the end surface line of the end away from each other of the inclined surface is vertically arranged along the length direction of the lower pressing cylinder (42), the surface of the two wire guide plates (52) close to one side is in contact at the beginning, so that the inclined surface of the wire guide plate (52) is combined into a sharp cone structure, the first control board (411) bottom is provided with the first guide groove (412), the wire dialing frame (51) top end is slidingly installed in the first guide groove (412) inside, when the wire guide plate (52) moves along the lower pressing cylinder (42), the surface of the two wire guide plates (52) close to one side always keeps in contact with the outer side of the lower pressing cylinder (42) and the outer side of the core (3), the wire (32) is clamped between the two wire guide plates (52) and the wire (32) is located directly below the let one place groove (421).

2. An assembly for sensor cores as claimed in claim 1, wherein: The wire dialing mechanism (5) further includes a lead wire structure installed on the processing table (2), a plurality of mounting grooves (21) are uniformly arranged on the upper surface of the processing table (2), and the lead wire structure is arranged below the mounting grooves (21). The lead wire structure includes a lead wire plate (7) installed on the bottom surface of the processing table (2), a second push plate (71) is slidingly arranged on one side of the lead wire plate (7), and a fourth driving device (72) is installed on the processing table (2) to drive the second push plate (71) to move up and down. Two limiting columns (73) are slidingly connected to the second push plate (71), and the limiting columns (73) are symmetrically arranged on both sides of the mounting groove (21). Second guide grooves (74) are arranged on the lead wire plate (7) along the moving direction of the second push plate (71), and the two second guide grooves (74) gradually approach each other in the direction close to the mounting groove (21). A guide column (731) reciprocally slides in the second guide groove (74) is arranged on the limiting column (73). An arc-shaped plate (732) is arranged on one end of the limiting column (73) close to the mounting groove (21), and the arc-shaped plates (732) on the two limiting columns (73) are cross arranged.

3. An assembly for sensor cores as claimed in claim 2, wherein: The pressing mechanism (4) further comprises a first control device (41) placed on one side of the shell (1), a first control plate (411) is installed above the first control device (41), the first control plate (411) can be controlled to rotate around a fixed axis and move up and down through the first control device (41), a pressing cylinder (42) is hollowly arranged, and the diameter of the bottom surface of the pressing cylinder (42) is consistent with the diameter of the upper surface of the core (3), a first driving device (43) for driving the pressing cylinder (42) to move up and down is installed above the first control plate (411), a guide cylinder (44) is slidably sleeved outside the pressing cylinder (42), the guide cylinder (44) is hollowly arranged, and the diameter of the inner wall of the guide cylinder (44) is consistent with the diameter of the side above the elastic sealing ring of the core (3), a second driving device (45) for driving the guide cylinder (44) to move up and down along the outer wall of the pressing cylinder (42) is installed above the first control plate (411), and a clearance slot (421) is arranged at the lower end of the guide cylinder (44), and the positions of the pressing cylinder (42) and the clearance slot (421) of the guide cylinder (44) are aligned.

4. An assembly for sensor cores as claimed in claim 3, wherein: A first push plate (53) is slidably arranged at the bottom of the first control plate (411), a wire rack (51) is slidably installed on the first push plate (53) away from the pressing cylinder (42), and a third driving device (54) for driving the first push plate (53) to move back and forth is installed below the first control plate (411), and a wire plate (52) is slidably installed at the lower end of the wire rack (51).

5. An assembly for sensor cores as claimed in claim 4, wherein: A fixing mechanism (6) is arranged on one side of the shell (1), the fixing mechanism (6) comprises a second control device (61) placed on one side of the shell (1), a second control plate (611) is installed above the second control device (61), the second control plate (611) can be controlled to rotate around a fixed axis and move up and down through the second control device (61), a lifting column (612) is installed at the bottom of the second control plate (611), two clamping blocks (613) are rotatably installed at the bottom of the lifting column (612), the two clamping blocks (613) are symmetrically arranged, the side away from the side that keeps vertical of the clamping block (613) is an inclined surface, the side that is close to each other of the clamping block (613) is made of a flexible material, a torsional spring (614) is connected to the rotating shaft of the clamping block (613), and the other end of the torsional spring (614) is connected to the bottom of the lifting column (612).

6. An assembly for a sensor core according to claim 5, wherein: A lifting plate (62) is slidably arranged on the lifting column (612), a fifth driving device (63) for driving the lifting plate (62) to move up and down along the lifting column (612) is installed above the second control plate (611), a rotating cylinder (64) is slidably sleeved outside the lifting column (612), a first gear (641) is arranged on the rotating cylinder (64), a second gear (642) that is meshed with the first gear (641) is rotatably arranged at the bottom of the lifting plate (62), and a motor (65) for driving the second gear (642) and the first gear (641) to synchronously rotate is installed above the lifting plate (62).

7. An assembly for sensor cores as claimed in claim 6, wherein: The rotary drum (64) is connected with a pressing ring (33) at the bottom, the outer wall of the pressing ring (33) is threadedly connected with the inner wall of the pressing head (31), the upper surface of the pressing ring (33) is provided with a groove, the bottom of the rotary drum (64) is provided with a protrusion matched with the groove on the upper surface of the pressing ring (33), the pressing ring (33) is made of an alloy material which can be easily attracted by a magnet, and the bottom of the rotary drum (64) is magnetic.

8. An assembly for sensor cores as claimed in claim 7, wherein: The outer surface of the core (3) is provided with an elastic sealing ring.

9. A method of assembling a sensor core, characterized by, The assembling device of the sensor core body as claimed in claim 8 comprises the following steps: S1, when installing the core body (3), first put the pressing head (31) into the installation groove (21) in sequence, then rotate the processing table (2) by a fixed angle to the next station each time, and put the core body (3) on the upper end of the pressing head (31); S2, when the core body (3) moves to the pressing mechanism (4) position, move the first push plate (53) on the wire moving mechanism (5), and push and clamp the wires (32) on the core body (3) to be straight by the two wire guide plates (52) installed on the wire moving frame (51); S3, the pressing mechanism (4) works, the guide cylinder (44) moves downward and limits the core body (3) and serves as a guide, then the lower pressing cylinder (42) presses the core body (3) downward, and the core body (3) is pressed into the inside of the pressing head (31); S4, the pressing mechanism (4) moves upward away from the sensor, the lead structure moves upward and limits the wires (32), the wire guide plate (52) resets, and then the lead structure continues to move upward, the wires (32) are guided upward until the wires (32) are kept in a vertical state and then stop moving; S5, the core body (3) moves to the fixing mechanism (6) position, the clamping block (613) on the fixing mechanism (6) clamps and fixes the end joint of the wires (32), then the rotary drum (64) moves downward and drives a pressing ring (33) to pass through the wires (32), the pressing ring (33) is installed into the inside of the pressing head (31) to fix the core body (3); S6, the processing table (2) continues to rotate, the sensor with the assembled core body (3) is taken out from the installation groove (21), then the next set of pressing heads (31) without the core body (3) are put into the installation groove (21), and the next core body (3) installation work is carried out.

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