A kind of resistance wire needle threading device for electric heating tube
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAMEN JURE ELECTROTHERMAL TECH CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-08-07
AI Technical Summary
[0003]在电热管电阻丝引针穿设工艺中,引针高速旋转推进时，机械振动与摩擦热导致电阻丝微滑移，而现有设备缺乏实时位置补偿机制，导致穿针深度不一致，影响产品合格率，且固定夹具无法动态调整夹持力，电阻丝表面容易出现压痕，较为不便，为此，提供一种电热管用电阻丝引针穿设装置
[0023]该一种电热管用电阻丝引针穿设装置，通过设置摄像头、位置调节机构、限位旋转机构和控制器，倾斜设置的摄像头实时捕捉引针尖端与电阻丝端面的相对位置，结合控制器内图形处理器，实现引针尖端定位精度，动态补偿因振动或热变形导致的微滑移，第一正反电机驱动螺纹柱与螺纹管精密调节引针轴向位置，第二正反电机驱动夹持板旋转推进，视觉反馈与第一正反电机和第二正反电机联动控制确保穿针深度一致，提高合格率，压力感应器实时监测夹持力通过压力感应器控制第二电动推杆启停，进而实现动态调整夹持力，进而起到保护电阻丝作用。
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Figure CN224600924U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of resistance wire pin insertion technology, specifically a device for inserting resistance wire pins for electric heating tubes. Background Technology
[0002] A resistance wire is an electrical component that converts electrical energy into internal energy. Generally speaking, the resistance of metals increases with rising temperature; conversely, the resistance of carbon, semiconductors, or electrolytes decreases with rising temperature. Thus, within a certain temperature range, we can consider the relationship between temperature change and resistance change to be linear, and therefore we can convert temperature change into resistance change. In electronic devices, the resistance wire is usually fixed and guides current through a pin.
[0003] In the process of inserting resistance wire pins for electric heating tubes, mechanical vibration and frictional heat cause slight slippage of the resistance wire when the pins rotate and advance at high speed. Existing equipment lacks a real-time position compensation mechanism, resulting in inconsistent insertion depths, which affects the product qualification rate. Furthermore, the fixing clamp cannot dynamically adjust the clamping force, and indentations are easily formed on the surface of the resistance wire, which is quite inconvenient. Therefore, a device for inserting resistance wire pins for electric heating tubes is provided. Utility Model Content
[0004] Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this application provides a device for threading resistance wire pins for electric heating tubes, which improves threading accuracy and protects the integrity of the resistance wire.
[0006] To achieve the above objectives, this application provides the following technical solution: a device for inserting resistance wire leads for electric heating tubes, comprising a U-shaped frame, a support plate, and a controller. The support plate is fixedly connected to the upper surface of the U-shaped frame, and the controller is fixedly connected to the right side of the U-shaped frame. A position adjustment mechanism is fixedly connected to the left side inside the U-shaped frame, and a limit rotation mechanism is provided at the right end of the position adjustment mechanism. A camera is fixedly connected to the right side of the limit rotation mechanism. A support frame is fixedly connected to the upper surface of the support plate, and a second electric push rod is fixedly connected to the lower end of the support frame. A limit mechanism is provided at the lower end of the second electric push rod. A first forward and reverse motor is provided inside the position adjustment mechanism. A second forward and reverse motor and a first electric push rod are provided inside the limit rotation mechanism. A pressure sensor is provided inside the limit mechanism. A graphics processor is provided inside the controller. The first forward and reverse motor, the second forward and reverse motor, the first electric push rod, the camera, the second electric push rod, and the pressure sensor are all electrically connected to the controller.
[0007] The above scheme, through the setting of a camera, position adjustment mechanism, limit rotation mechanism and controller, uses a tilted camera to capture the relative position of the needle tip and the end face of the resistance wire in real time. Combined with the graphics processor in the controller, it achieves the positioning accuracy of the needle tip and dynamically compensates for the micro-slippage caused by vibration or thermal deformation. The first forward and reverse motor drives the threaded column and threaded tube to precisely adjust the axial position of the needle. The second forward and reverse motor drives the clamping plate to rotate and advance. Visual feedback and the linkage control of the first and second forward and reverse motors ensure consistent needle insertion depth and improve the pass rate. The pressure sensor monitors the clamping force in real time and controls the start and stop of the second electric push rod through the pressure sensor, thereby achieving dynamic adjustment of the clamping force and thus protecting the resistance wire.
[0008] Furthermore, the position adjustment mechanism includes a first housing, which is fixedly connected to the left side inside the U-shaped frame. The first forward and reverse motor is fixedly connected to the inside of the first housing. A threaded post is fixedly connected to the right end of the output shaft of the first forward and reverse motor, and a threaded tube is threadedly connected to the right end of the threaded post.
[0009] Through the above scheme, the first forward and reverse motor achieves needle propulsion through the precise transmission between the threaded column and the threaded tube, combined with the rigid guidance of the slider in the limiting groove.
[0010] Furthermore, a slider is fixedly connected to the surface of the threaded tube, and a limiting groove is formed inside the first outer shell, with the slider movably connected inside the limiting groove.
[0011] The above solution ensures that the slider and the limiting groove simultaneously prevent the threaded tube from detaching from the first outer shell.
[0012] Furthermore, the limiting rotation mechanism includes a second outer shell, which is fixedly connected to the right end of the threaded tube. A rotating shell is rotatably connected inside the second outer shell. Four sets of the first electric push rods are provided and are arranged in a rectangular shape inside the rotating shell. A clamping plate is fixedly connected to the right end of each of the four sets of the first electric push rods.
[0013] With the above scheme, the four sets of first electric push rods are arranged in a rectangular shape, driving the clamping plate to move radially, which facilitates the fixing of the guide pin.
[0014] Furthermore, the second forward and reverse motor is fixedly connected inside the second housing, and the right end of the output shaft of the second forward and reverse motor is fixedly connected to the left side of the rotating housing.
[0015] The above scheme controls the operation of the second forward and reverse motors, making it easier to rotate the lead needle and push it into the resistance wire.
[0016] Furthermore, the limiting mechanism includes a third housing, which is fixedly connected to the lower end of the second electric push rod. A movable rod is movably connected to the lower end of the third housing, and a fixed rod is fixedly connected to the upper end of the movable rod. The pressure sensor is fixedly connected inside the third housing. A spring is sleeved on the surface of the fixed rod and the pressure sensor. The upper end of the spring is fixedly connected to the inside of the third housing, and the lower end of the spring is fixedly connected to the upper surface of the movable rod. An upper limit block is fixedly connected to the lower surface of the movable rod, and a lower limit block is provided at the lower end of the upper limit block. The lower limit block passes through the upper end of the support plate.
[0017] With the above scheme, the second electric push rod drives the limiting mechanism to move downward, and the upper and lower limit blocks clamp the resistance wire through the elastic protective layer. The pressure sensor monitors the clamping force in real time, and combined with the elastic buffer of the spring, dynamically adjusts the clamping pressure to avoid surface indentations.
[0018] Furthermore, the clamping positions of the four sets of clamping plates and the upper and lower limit blocks are set on the same axis, and the camera is tilted to illuminate the front end of the clamping plate.
[0019] With the above scheme, the four sets of clamping plates are aligned with the upper and lower limit blocks on the same axis, ensuring that the center of the resistance wire is precisely aligned with the lead-in path.
[0020] Furthermore, both the upper limit block and the lower limit block have an elastic protective layer on their surfaces.
[0021] Through the above scheme, the elastic protective layer further protects the resistance wire.
[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0023] This device for inserting resistance wire needles into heating tubes comprises a camera, a position adjustment mechanism, a limit rotation mechanism, and a controller. The tilted camera captures the relative position of the needle tip and the end face of the resistance wire in real time. Combined with the graphics processor in the controller, it achieves accurate positioning of the needle tip and dynamically compensates for micro-slippage caused by vibration or thermal deformation. A first forward and reverse motor drives the threaded column and threaded tube to precisely adjust the axial position of the needle. A second forward and reverse motor drives the clamping plate to rotate and advance. Visual feedback and the linkage control of the first and second forward and reverse motors ensure consistent needle insertion depth, improving the pass rate. A pressure sensor monitors the clamping force in real time and controls the start and stop of the second electric push rod, thereby dynamically adjusting the clamping force and protecting the resistance wire. Attached Figure Description
[0024] Figure 1 This is a three-dimensional structural diagram of the present application.
[0025] Figure 2This is a schematic diagram of the structure in cross-section from the left side of this application;
[0026] Figure 3 This is a schematic diagram of the position adjustment mechanism of this application, viewed from the front and in cross-section.
[0027] Figure 4 This is a schematic diagram of the right-side cross-section of the limiting rotation mechanism of this application;
[0028] Figure 5 This is a frontal cross-sectional view of the limiting rotation mechanism of this application;
[0029] Figure 6 This is a structural schematic diagram of the limiting mechanism in this application, viewed from the left side in cross-section.
[0030] In the picture:
[0031] 1. U-shaped frame; 2. Support plate; 3. Position adjustment mechanism; 301. First outer shell; 302. First forward / reverse motor; 303. Threaded column; 304. Threaded tube; 305. Limiting groove; 306. Slider; 4. Limiting rotation mechanism; 401. Second outer shell; 402. Rotating shell; 403. First electric push rod; 404. Clamping plate; 405. Second forward / reverse motor; 5. Camera; 6. Support frame; 7. Second electric push rod; 8. Limiting mechanism; 801. Third outer shell; 802. Movable rod; 803. Fixed rod; 804. Pressure sensor; 805. Spring; 806. Upper limit block; 807. Lower limit block; 9. Controller. Detailed Implementation
[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0033] Please see Figure 1 , Figure 2 and Figure 3This embodiment of a heating element resistance wire guide pin insertion device includes a U-shaped frame 1, a support plate 2, and a controller 9. The support plate 2 is fixedly connected to the upper surface of the U-shaped frame 1, and the controller 9 is fixedly connected to the right side of the U-shaped frame 1. A position adjustment mechanism 3 is fixedly connected to the left side inside the U-shaped frame 1. A limit rotation mechanism 4 is provided at the right end of the position adjustment mechanism 3, and a camera 5 is fixedly connected to the right side of the limit rotation mechanism 4. A support frame 6 is fixedly connected to the upper surface of the support plate 2, and a second electric push rod 7 is fixedly connected to the lower end of the support frame 6. A limit mechanism 8 is provided at the lower end of the second electric push rod 7. A first forward and reverse motor 302 is provided inside the position adjustment mechanism 3. A second forward and reverse motor 405 and a first electric push rod 403 are provided inside the limit rotation mechanism 4. A pressure sensor 804 is provided inside the limit mechanism 8. A graphics processor is provided inside the controller 9. The first forward and reverse motor 302, the second forward and reverse motor 405, and the first electric push rod 403 are all installed in the control mechanism 9. The push rod 403, camera 5, second electric push rod 7, and pressure sensor 804 are all electrically connected to the controller 9. By setting up camera 5, position adjustment mechanism 3, limit rotation mechanism 4, and controller 9, the tilted camera 5 captures the relative position of the needle tip and the end face of the resistance wire in real time. Combined with the graphics processor in the controller 9, the positioning accuracy of the needle tip is achieved, and micro-slippage caused by vibration or thermal deformation is dynamically compensated. The first forward and reverse motor 302 drives the threaded column 303 and threaded tube 304 to precisely adjust the axial position of the needle. The second forward and reverse motor 405 drives the clamping plate 404 to rotate and advance. Visual feedback and the linkage control of the first forward and reverse motor 302 and the second forward and reverse motor 405 ensure consistent needle insertion depth and improve the pass rate. The pressure sensor 804 monitors the clamping force in real time and controls the start and stop of the second electric push rod 7 through the pressure sensor 804, thereby achieving dynamic adjustment of the clamping force and thus protecting the resistance wire.
[0034] Please see Figure 1 , Figure 4 and Figure 5The position adjustment mechanism 3 includes a first housing 301, which is fixedly connected to the left side of the U-shaped frame 1. A first forward / reverse motor 302 is fixedly connected inside the first housing 301. A threaded post 303 is fixedly connected to the right end of the output shaft of the first forward / reverse motor 302. A threaded tube 304 is threadedly connected to the right end of the threaded post 303. A slider 306 is fixedly connected to the surface of the threaded tube 304. A limiting groove 305 is formed inside the first housing 301, and the slider 306 is movably connected inside the limiting groove 305. The limiting rotation mechanism 4 includes a second housing 401, which is fixedly connected to the right end of the threaded tube 304. A rotating shell 402 is rotatably connected inside the outer shell 401. Four sets of first electric push rods 403 are arranged in a rectangular shape inside the rotating shell 402. The right end of each of the four sets of first electric push rods 403 is fixedly connected to a clamping plate 404. The first forward and reverse motors 302 achieve needle advancement through the precision transmission between the threaded column 303 and the threaded tube 304, combined with the rigid guidance of the slider 306 in the limiting groove 305. The slider 306 and the limiting groove 305 simultaneously prevent the threaded tube 304 from detaching from the first outer shell 301. The four sets of first electric push rods 403 are arranged in a rectangular shape, driving the clamping plate 404 to move radially, which facilitates the fixation of the needle.
[0035] Please see Figure 1 , Figure 5 and Figure 6The second forward / reverse motor 405 is fixedly connected inside the second housing 401. The right end of the output shaft of the second forward / reverse motor 405 is fixedly connected to the left side of the rotating housing 402. The limiting mechanism 8 includes a third housing 801, which is fixedly connected to the lower end of the second electric push rod 7. A movable rod 802 is movably connected to the lower end of the third housing 801, and a fixed rod 803 is fixedly connected to the upper end of the movable rod 802. A pressure sensor 804 is fixedly connected inside the third housing 801. A spring 805 is sleeved on the surface of the fixed rod 803 and the pressure sensor 804. The upper end of the spring 805 is fixedly connected to the inside of the third housing 801, and the lower end of the spring 805 is fixedly connected to the movable rod 802. On the upper surface, an upper limit block 806 is fixedly connected to the lower surface of the movable rod 802. A lower limit block 807 is provided at the lower end of the upper limit block 806. The lower limit block 807 passes through the upper end of the support plate 2. The clamping positions of the four sets of clamping plates 404, the upper limit block 806, and the lower limit block 807 are set on the same axis. The camera 5 is tilted to illuminate the front end of the clamping plate 404. Both the upper limit block 806 and the lower limit block 807 are provided with elastic protective layers. The second forward and reverse motor 405 is controlled to operate, so as to drive the needle to rotate and push it into the resistance wire. The second electric push rod 7 drives the limiting mechanism 8 to move down. The upper limit block 806 and the lower limit block 807 clamp the resistance wire through the elastic protective layers. The pressure sensor 804 monitors the clamping force in real time, and combined with the elastic buffer of the spring 805, dynamically adjusts the clamping pressure to avoid surface indentations. The four sets of clamping plates 404, the upper limit block 806, and the lower limit block 807 are clamped on the same axis to ensure that the center of the resistance wire is precisely aligned with the lead-in path. The elastic protective layer further protects the resistance wire.
[0036] In this embodiment, by setting up a camera 5, a position adjustment mechanism 3, a limit rotation mechanism 4, and a controller 9, the tilted camera 5 captures the relative position of the needle tip and the end face of the resistance wire in real time. Combined with the graphics processor in the controller 9, the positioning accuracy of the needle tip is achieved, and micro-slippage caused by vibration or thermal deformation is dynamically compensated. The first forward and reverse motor 302 drives the threaded column 303 and the threaded tube 304 to precisely adjust the axial position of the needle. The second forward and reverse motor 405 drives the clamping plate 404 to rotate and advance. Visual feedback and the linkage control of the first forward and reverse motor 302 and the second forward and reverse motor 405 ensure consistent needle insertion depth and improve the pass rate. The pressure sensor 804 monitors the clamping force in real time and controls the start and stop of the second electric push rod 7 through the pressure sensor 804, thereby realizing dynamic adjustment of the clamping force and thus protecting the resistance wire.
[0037] The working principle of the above embodiment is as follows: The second electric push rod 7 drives the limiting mechanism 8 to move downward, and the upper limit block 806 and the lower limit block 807 clamp the resistance wire through the elastic protective layer. The pressure sensor 804 monitors the clamping force in real time, and combined with the elastic buffer of the spring 805, dynamically adjusts the clamping pressure to avoid surface indentation. By controlling the first electric push rod 403, the four sets of clamping plates 404 can fix the pin. The clamping positions of the four sets of clamping plates 404, the upper limit block 806, and the lower limit block 807 are on the same axis, ensuring that the center of the resistance wire is precisely aligned with the pin's pushing path. The tilting camera 5 captures the relative position of the pin tip and the end face of the resistance wire at a high frame rate. The graphics processor in the controller 9 calculates the offset in real time and drives the first forward and reverse motor 302 to adjust the thread. The axial position of the column 303 and the threaded tube 304 compensates for the micro-slippage caused by vibration and thermal deformation. The first forward and reverse motor 302 achieves the advancement of the guide pin through the precision transmission of the threaded column 303 and the threaded tube 304, combined with the rigid guidance of the slider 306 in the limiting groove 305. At the same time, by controlling the operation of the second forward and reverse motor 405, the guide pin is driven to rotate and advance into the resistance wire. When the work is completed, the first electric push rod 403 is controlled to release the guide pin, the second forward and reverse motor 405 is controlled to stop operating, and the first forward and reverse motor 302 is controlled to rotate in the opposite direction to drive the clamping plate 404 to reset.
[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.
[0039] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A device for threading resistance wire leads for electric heating tubes, comprising a U-shaped frame (1), a support plate (2), and a controller (9), characterized in that: The support plate (2) is fixedly connected to the upper surface of the U-shaped frame (1), the controller (9) is fixedly connected to the right side of the U-shaped frame (1), a position adjustment mechanism (3) is fixedly connected to the left side inside the U-shaped frame (1), a limit rotation mechanism (4) is provided at the right end of the position adjustment mechanism (3), a camera (5) is fixedly connected to the right side of the limit rotation mechanism (4), a support frame (6) is fixedly connected to the upper surface of the support plate (2), a second electric push rod (7) is fixedly connected to the lower end of the support frame (6), and a limit mechanism (7) is provided at the lower end of the second electric push rod (7). 8) The position adjustment mechanism (3) is equipped with a first forward and reverse motor (302), the limiting rotation mechanism (4) is equipped with a second forward and reverse motor (405) and a first electric push rod (403), the limiting mechanism (8) is equipped with a pressure sensor (804), and the controller (9) is equipped with a graphics processor. The first forward and reverse motor (302), the second forward and reverse motor (405), the first electric push rod (403), the camera (5), the second electric push rod (7) and the pressure sensor (804) are all electrically connected to the controller (9).
2. The device for inserting resistance wire pins for electric heating tubes according to claim 1, characterized in that: The position adjustment mechanism (3) includes a first housing (301), which is fixedly connected to the left side inside the U-shaped frame (1). The first forward and reverse motor (302) is fixedly connected inside the first housing (301). A threaded column (303) is fixedly connected to the right end of the output shaft of the first forward and reverse motor (302). A threaded tube (304) is threadedly connected to the right end of the threaded column (303).
3. The device for inserting resistance wire pins for electric heating tubes according to claim 2, characterized in that: A slider (306) is fixedly connected to the surface of the threaded tube (304), and a limiting groove (305) is opened inside the first outer shell (301). The slider (306) is movably connected inside the limiting groove (305).
4. The device for inserting resistance wire pins for electric heating tubes according to claim 3, characterized in that: The limiting rotation mechanism (4) includes a second outer shell (401), which is fixedly connected to the right end of the threaded tube (304). A rotating shell (402) is rotatably connected inside the second outer shell (401). There are four sets of first electric push rods (403), which are arranged in a rectangular shape inside the rotating shell (402). A clamping plate (404) is fixedly connected to the right end of each of the four sets of first electric push rods (403).
5. The device for inserting resistance wire pins for electric heating tubes according to claim 4, characterized in that: The second forward and reverse motor (405) is fixedly connected inside the second housing (401), and the right end of the output shaft of the second forward and reverse motor (405) is fixedly connected to the left side of the rotating housing (402).
6. The device for inserting resistance wire pins for electric heating tubes according to claim 4, characterized in that: The limiting mechanism (8) includes a third housing (801), which is fixedly connected to the lower end of the second electric push rod (7). A movable rod (802) is movably connected to the lower end of the third housing (801). A fixed rod (803) is fixedly connected to the upper end of the movable rod (802). A pressure sensor (804) is fixedly connected inside the third housing (801). A spring (805) is sleeved on the surface of the fixed rod (803) and the pressure sensor (804). The upper end of the spring (805) is fixedly connected to the inside of the third housing (801). The lower end of the spring (805) is fixedly connected to the upper surface of the movable rod (802). An upper limit block (806) is fixedly connected to the lower surface of the movable rod (802). A lower limit block (807) is provided at the lower end of the upper limit block (806). The lower limit block (807) passes through the upper end of the support plate (2).
7. The device for inserting resistance wire pins for electric heating tubes according to claim 6, characterized in that: The clamping positions of the four sets of clamping plates (404) and upper limit block (806) and lower limit block (807) are set on the same axis, and the camera (5) is tilted to illuminate the front end of the clamping plate (404).
8. The device for inserting resistance wire pins for electric heating tubes according to claim 7, characterized in that: Both the upper limit block (806) and the lower limit block (807) have an elastic protective layer on their surfaces.