A rotary heat riveter for an eddy current sensor

Abstract

The utility model relates to a kind of rotary table type hot riveter for eddy current sensor, it includes rack, rotating platform, wire harness detection component, compression assembly, hot riveting component, flatness detection component and hot riveting diameter detection component;Rotating platform is connected with rack rotation;Wire harness detection component is installed on rack, and its detection end is directed to fixed station setting;Compression assembly is installed on rack, and its compression end is directed to fixed station setting, and its hot riveting end is used for riveting the end of rivet of the chip of shell connection;Flatness detection component is installed on rack;Hot riveting diameter detection component is installed on rack;Wire harness detection component is used to detect whether the arrangement order of the wire harness connected with chip is correct, flatness detection component is used to detect the flatness of chip, hot riveting diameter detection component is used to detect the diameter of rivet end after hot riveting, avoid diameter too large or too small and lead to insufficient connection strength, by the above setting, the hot riveting quality of the chip of eddy current sensor can be ensured.

Description

Technical Field

[0001] This utility model relates to the field of eddy current sensor technology, and in particular to a rotary hot riveting machine for eddy current sensors. Background Technology

[0002] During the production process of eddy current sensors, a hot riveting machine is needed to solder the chip onto the housing.

[0003] For example, a brake light switch sensor assembly line proposed in utility model patent application number CN202123042442.7 can be used, which includes a workbench, a turntable, and a control system; the turntable is arranged above the workbench and is rotatably connected to the workbench; six loading fixtures arranged in a circular array are mounted on the turntable, and the loading fixtures have a first assembly slot for fixing chips and circuit boards and a second assembly slot for fixing the housing; the workbench is sequentially and spaced apart to have manual loading and unloading stations, a primary welding station, a manual welding inspection and slag removal station, a hot riveting station, a secondary welding inspection station, and a system welding inspection station, which respectively cooperate with the six loading fixtures; the manual loading and unloading station... The first welding station is used to place the chips, circuit boards, and housings to be assembled onto the loading fixture and remove the finished products from the loading fixture; the manual soldering and slag removal station is used to check whether the circuit boards are qualified after the first welding, remove solder slag, and place the circuit boards into the housing; the first welding station, the hot riveting station, the second welding inspection station, and the system welding inspection station are respectively equipped with a primary welding mechanism for welding chips and circuit boards, a hot riveting mechanism for hot riveting circuit boards onto the housing, a secondary welding mechanism for welding and fixing the pins on the housing to the circuit board, and an inspection mechanism for checking whether the finished products are qualified; the turntable, the primary welding mechanism, the hot riveting mechanism, the secondary welding mechanism, and the inspection mechanism are all electrically connected to the control system.

[0004] However, the aforementioned assembly line cannot detect whether the wiring sequence is correct, whether the flatness of the chip after hot riveting meets the standard, or whether the diameter of the hot riveting point meets the standard. In summary, the existing assembly line cannot fully control the hot riveting process of the eddy current sensor. Utility Model Content

[0005] In view of this, it is necessary to provide a rotary hot riveting machine for eddy current sensors to solve the problem that existing assembly lines cannot fully control the hot riveting process of eddy current sensors.

[0006] This utility model provides a rotary hot riveting machine for eddy current sensors, including a frame, a rotary table, a wiring detection component, a pressing component, a hot riveting component, a flatness detection component, and a hot riveting diameter detection component. The rotary table is rotatably connected to the frame, and the top of the rotary table is provided with a fixing station for fixing the housing and chip of the eddy current sensor. The wiring detection component is mounted on the frame, and its detection end points towards the fixing station, for detecting the arrangement order of the wiring harness connected to the chip. The pressing component is mounted on the frame, and its pressing end points towards the fixing station, for pressing the chip onto the housing. The hot riveting component is mounted on the frame, and its hot riveting end is used to rivet the end of the rivet connecting the chip to the housing. The flatness detection component is mounted on the frame, and its detection end is used to detect the flatness of the chip. The hot riveting diameter detection component is mounted on the frame, and its detection end is used to detect the diameter of the rivet end after hot riveting.

[0007] Furthermore, the rotary table includes a turntable, a rotating shaft, a motor, a fixing box, and a wire harness clip. The turntable is rotatably connected to the frame via the rotating shaft. The motor is installed at the bottom of the frame, and the output end of the motor is connected to the rotating shaft. The fixing box is installed on the top of the rotary table, and the top of the fixing box has a slot for engaging with the outer shell. The wire harness clip is fixedly installed on the top of the rotary table and is used for wire harness connection with the chip.

[0008] Furthermore, the number of the fixing box and the wire harness buckle are both multiple and are evenly arranged along the circumference of the turntable.

[0009] Furthermore, the number of fixing boxes is five, and the turntable can be rotated so that the five fixing boxes are respectively facing the positions of the ribbon cable detection component, the pressing component, the hot riveting component, the flatness detection component, and the hot riveting diameter detection component.

[0010] Furthermore, the ribbon cable testing component includes a ribbon cable testing bracket and a ribbon cable testing camera. The ribbon cable testing bracket is fixedly mounted on the frame, and the ribbon cable testing camera is mounted on the ribbon cable testing bracket.

[0011] Furthermore, the pressing assembly includes a pressing bracket, a pressing drive, and a pressing head. The pressing bracket is fixedly mounted on the frame, and the pressing drive is fixedly mounted on the pressing bracket. The output end of the pressing drive is located above the rotary table and connected to the pressing head, for driving the pressing head to move vertically.

[0012] Furthermore, the hot riveting assembly includes a hot riveting bracket, a first lifting member, and a hot riveting member. The hot riveting bracket is fixedly mounted on the frame, and the first lifting member is fixedly mounted on the hot riveting bracket. The output end of the first lifting member is located above the rotary table and connected to the hot riveting member, for driving the hot riveting member to move in the vertical direction.

[0013] Furthermore, the hot riveting assembly also includes a second lifting member and a positioning block. The second lifting member is fixedly mounted on the hot riveting bracket. The output end of the second lifting member is located above the rotary table and connected to the positioning block, and is used to drive the positioning block to move in the vertical direction. The positioning block and the hot riveting member are staggered in the horizontal plane. The positioning block is used to press the chip onto the outer shell.

[0014] Furthermore, the flatness detection component includes a lifting member, a horizontal plate, and multiple pressure sensors. The lifting member is mounted on the frame, and its top is an output end connected to one side of the horizontal plate to drive the horizontal plate to move vertically. The other side of the horizontal plate extends above the rotary table. The multiple pressure sensors are evenly arranged circumferentially at the bottom of the other side of the horizontal plate, and the multiple pressure sensors are used to abut against different positions of the chip.

[0015] Furthermore, the hot riveting diameter detection assembly includes a hot riveting diameter detection bracket, a hot riveting diameter detection lifting component, and a hot riveting diameter detection camera. The hot riveting diameter detection bracket is fixedly mounted on the frame, and the hot riveting diameter detection lifting component is mounted on the hot riveting diameter detection bracket. The output end of the hot riveting diameter detection lifting component is located above the rotary table and connected to the hot riveting diameter detection camera, for driving the hot riveting diameter detection camera to move in the vertical direction.

[0016] Compared to existing technologies, this method places the housing on a fixed position on a rotary table, with the chip connected to the wire harness pre-placed. The rotation of the rotary table moves the housing and chip sequentially to positions facing the wiring detection component, pressing component, hot riveting component, flatness detection component, and hot riveting diameter detection component. The wiring detection component checks the correct arrangement of the wire harness connected to the chip; if incorrect, the hot riveting process is stopped immediately, identifying defective products. The chip is then moved to the pressing component, which presses it tightly against the housing for the hot riveting process. After hot riveting, the flatness detection component checks the chip's flatness to prevent tilting and its impact on the sensor's lifespan. The hot riveting diameter detection component checks the diameter of the rivet end after hot riveting to prevent insufficient connection strength due to excessively large or small diameters. This setup ensures the quality of the hot riveting process for the eddy current sensor chip. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the rotary hot riveting machine for eddy current sensors provided in this embodiment of the utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the structure of the rotation jump;

[0019] Figure 3 for Figure 1 Schematic diagram of the structure of the mid-line cable detection component;

[0020] Figure 4 for Figure 1 Schematic diagram of the structure of the medium-pressure composite component;

[0021] Figure 5 for Figure 1 Schematic diagram of the structure of the hot riveting assembly;

[0022] Figure 6 for Figure 1 Schematic diagram of the flatness detection component;

[0023] Figure 7 for Figure 1 A schematic diagram of the structure of the hot riveting diameter detection component. Detailed Implementation

[0024] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0025] like Figure 1 As shown in the figure, an embodiment of this utility model provides a rotary hot riveting machine for eddy current sensors, including a frame 100, a rotary table 200, a cable detection assembly 300, a pressing assembly 400, a hot riveting assembly 500, a flatness detection assembly 600, and a hot riveting diameter detection assembly 700; the rotary table 200 is rotatably connected to the frame 100, and the top of the rotary table 200 is provided with a fixing station for fixing the housing and chip of the eddy current sensor; the cable detection assembly 300 is mounted on the frame 100, and its detection end is set towards the fixing station. The following components are used to detect the arrangement order of the wire harnesses connected to the chip: a pressing assembly 400 is mounted on the frame 100, with its pressing end pointing towards the fixed station, for pressing the chip onto the housing; a hot riveting assembly 500 is mounted on the frame 100, with its hot riveting end for riveting the end of the rivet connecting the chip to the housing; a flatness detection assembly 600 is mounted on the frame 100, with its detection end for detecting the flatness of the chip; and a hot riveting diameter detection assembly 700 is mounted on the frame 100, with its detection end for detecting the diameter of the rivet end after hot riveting.

[0026] The housing is placed on a fixed position on a rotary table 200, with a chip connected to a wire harness pre-placed. The rotation of the rotary table 200 moves the housing and chip sequentially to positions facing the wiring detection component 300, the pressing component 400, the hot riveting component 500, the flatness detection component 600, and the hot riveting diameter detection component 700. The wiring detection component 300 checks the correct arrangement of the wire harness connected to the chip; if incorrect, the hot riveting process is stopped immediately, identifying defective products. The chip is then moved to the pressing component 400, which presses it tightly against the housing for the hot riveting component 500 to perform the hot riveting process. After hot riveting, the flatness detection component 600 checks the chip's flatness to prevent tilting and ensure the sensor's lifespan. The hot riveting diameter detection component 700 checks the diameter of the rivet end after hot riveting to prevent insufficient connection strength due to excessively large or small diameters. This setup ensures the quality of the hot riveting process for the eddy current sensor chip.

[0027] In this embodiment, the frame 100 serves as the support structure for the entire hot riveting machine.

[0028] In this embodiment, the rotary table 200 is rotatably connected to the frame 100, and the top of the rotary table 200 is provided with a fixing station for fixing the housing and chip of the eddy current sensor.

[0029] like Figure 2 As shown, in one embodiment, the rotary table 200 includes a turntable 210, a rotating shaft, a motor, a fixing box 220, and a wire harness clip 230. The turntable 210 is rotatably connected to the frame 100 via the rotating shaft. The motor is installed at the bottom of the frame 100, and the output end of the motor is connected to the rotating shaft. The fixing box 220 is installed on the top of the rotary table 200. The top of the fixing box 220 has a slot 221 for engaging with the outer shell. The wire harness clip 230 is fixedly installed on the top of the rotary table 200 and is used for wire harness connection with the chip.

[0030] The number of wire harness clips 230 corresponding to the fixing box 220 can be set to multiple, and the multiple wire harness clips 230 can be set sequentially according to different paths to accommodate wire harnesses of different lengths.

[0031] In this embodiment, there are multiple fixing boxes 220 and wire harness clips 230, which are evenly arranged around the turntable 210.

[0032] The number of fixed boxes 220 is five, and the turntable 210 can rotate to position the five fixed boxes 220 facing the cable detection component 300, the pressing component 400, the hot riveting component 500, the flatness detection component 600, and the hot riveting diameter detection component 700 respectively.

[0033] In this embodiment, the ribbon cable detection component 300 is mounted on the rack 100, and its detection end is set to a fixed position for detecting the arrangement order of the wire harnesses connected to the chip.

[0034] like Figure 3 As shown, in one embodiment, the ribbon cable detection assembly 300 includes a ribbon cable detection bracket 310 and a ribbon cable detection camera 320. The ribbon cable detection bracket 310 is fixedly mounted on the frame 100, and the ribbon cable detection camera 320 is mounted on the ribbon cable detection bracket 310.

[0035] Understandably, wire harnesses are usually composed of wires of different colors. By taking pictures of the wire harnesses with a ribbon cable inspection camera 320 and comparing the pictures with preset wire harness pictures in the database, it can be determined whether the arrangement of the wire harnesses is correct. If it is incorrect, an alarm is triggered to notify the operator to classify the non-compliant items. If it is correct, the next process is carried out.

[0036] In this embodiment, the pressing assembly 400 is mounted on the frame 100, with its pressing end pointing towards the fixed station, for pressing the chip onto the housing. Since the housing and chip are placed onto the rotary table 200 manually, the chip and housing are not tightly bonded. The pressing assembly 400 can press the chip onto the housing to facilitate the subsequent hot riveting process.

[0037] like Figure 4 As shown, in one embodiment, the pressing assembly 400 includes a pressing bracket 410, a pressing drive 420, and a pressing head 430. The pressing bracket 410 is fixedly mounted on the frame 100, and the pressing drive 420 is fixedly mounted on the pressing bracket 410. The output end of the pressing drive 420 is located above the rotary table 200 and connected to the pressing head 430, and is used to drive the pressing head 430 to move in the vertical direction.

[0038] The pressing drive 420 can be a cylinder, hydraulic cylinder or other structure, and the pressing head 430 is ring-shaped to avoid the circuit part of the chip.

[0039] In this embodiment, the hot riveting assembly 500 is mounted on the frame 100, and its hot riveting end is used to rivet the end of the rivet connecting the chip to the housing.

[0040] like Figure 5 As shown, in one embodiment, the hot riveting assembly 500 includes a hot riveting bracket 510, a first lifting member 520, and a hot riveting member 530. The hot riveting bracket 510 is fixedly mounted on the frame 100, and the first lifting member 520 is fixedly mounted on the hot riveting bracket 510. The output end of the first lifting member 520 is located above the rotary table 200 and connected to the hot riveting member 530, and is used to drive the hot riveting member 530 to move in the vertical direction.

[0041] In one embodiment, the hot riveting assembly 500 further includes a second lifting member 540 and a positioning block 550. The second lifting member 540 is fixedly disposed on the hot riveting bracket 510. The output end of the second lifting member 540 is located above the rotary table 200 and connected to the positioning block 550, and is used to drive the positioning block 550 to move in the vertical direction. The positioning block 550 and the hot riveting member 530 are staggered in the horizontal plane. The positioning block 550 is used to press the chip onto the housing.

[0042] The first lifting component 520 and the second lifting component 540 can adopt structures such as cylinders and hydraulic cylinders. The hot riveting component 530 has a heating pressing end that corresponds one-to-one with the number of rivets. The heating pressing end contacts the top of the rivet and heats it to a certain temperature before pressing it down to form a rivet head, thereby completing the hot riveting process. It is understood that the above-mentioned hot riveting component 530 is a conventional structure that can be conceived by those skilled in the art, and will not be elaborated or explained in detail here.

[0043] The positioning block 550 has a semi-circular structure. Before hot riveting, the positioning block 550 is pressed against the non-circuit part of the chip, thereby fixing the chip to the casing.

[0044] In this embodiment, the flatness detection component 600 is mounted on the rack 100, and its detection end is used to detect the flatness of the chip.

[0045] like Figure 6 As shown, in one embodiment, the flatness detection component 600 includes a lifting member 610, a horizontal plate 620, and a plurality of pressure sensors 630. The lifting member 610 is mounted on the frame 100, and the top of the lifting member 610 is an output end connected to one side of the horizontal plate 620 for driving the horizontal plate 620 to move in the vertical direction. The other side of the horizontal plate 620 extends above the rotary table 200. The plurality of pressure sensors 630 are evenly arranged in a circumferential direction at the bottom of the other side of the horizontal plate 620, and the plurality of pressure sensors 630 are used to abut against different positions of the chip.

[0046] Among them, the lifting component 610 adopts a structure such as a cylinder or hydraulic cylinder. The bottoms of multiple pressure sensors 630 are located in the same horizontal plane. By driving multiple pressure sensors 630 to move downward synchronously until they contact different parts of the chip, according to the pressure value fed back, if the pressure difference is within the preset range, it indicates that the flatness of the chip meets the standard; otherwise, it is a hot-riveted NG product.

[0047] In this embodiment, the hot riveting diameter detection component 700 is mounted on the frame 100, and its detection end is used to detect the diameter of the rivet end after hot riveting.

[0048] like Figure 7As shown, in one embodiment, the hot riveting diameter detection assembly 700 includes a hot riveting diameter detection bracket 710, a hot riveting diameter detection lifting member 720, and a hot riveting diameter detection camera 730. The hot riveting diameter detection bracket 710 is fixedly mounted on the frame 100, and the hot riveting diameter detection lifting member 720 is mounted on the hot riveting diameter detection bracket 710. The output end of the hot riveting diameter detection lifting member 720 is located above the rotary table 200 and connected to the hot riveting diameter detection camera 730, for driving the hot riveting diameter detection camera 730 to move in the vertical direction.

[0049] Among them, the hot riveting diameter detection lifting component 720 adopts a structure such as a cylinder or hydraulic cylinder. The hot riveting diameter detection camera 730 captures an image of the rivet head, and the diameter of the rivet head can be calculated based on the distance from the hot riveting diameter detection camera 730 to the rivet head. Then, it is compared with a preset value to determine whether the hot riveting diameter meets the standard.

[0050] It is understandable that the method of calculating the diameter of the object by taking the above-mentioned image is a conventional method that a person skilled in the art can think of, and it is not the focus of this application. As long as the diameter of the hot riveting can be measured, it is sufficient.

[0051] Compared with existing technologies: The housing is placed on a fixed position on a rotary table 200, with the chip connected to the wire harness pre-positioned. The rotation of the rotary table 200 allows the housing and chip to move sequentially to positions directly opposite the cable detection component 300, the pressing component 400, the hot riveting component 500, the flatness detection component 600, and the hot riveting diameter detection component 700. The cable detection component 300 detects whether the arrangement of the wire harness connected to the chip is correct; if an error is found, the hot riveting process can be stopped immediately, allowing for timely detection. NG product; then it moves to the pressing assembly 400, which presses the chip to a position close to the shell so that the hot riveting assembly 500 can perform the hot riveting process. After the hot riveting is completed, the flatness detection assembly 600 is used to detect the flatness of the chip to avoid the chip tilting from affecting the subsequent service life of the sensor. The hot riveting diameter detection assembly 700 is used to detect the diameter of the rivet end after hot riveting to avoid the diameter being too large or too small, which would result in insufficient connection strength. Through the above settings, the hot riveting quality of the eddy current sensor chip can be ensured.

[0052] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rotary hot riveting machine for eddy current sensors, characterized in that, It includes a frame, a rotary table, a cable inspection assembly, a pressing assembly, a hot riveting assembly, a flatness inspection assembly, and a hot riveting diameter inspection assembly; The rotary table is rotatably connected to the frame, and the top of the rotary table is provided with a fixing station for fixing the housing and chip of the eddy current sensor. The cable testing component is mounted on the rack, and its testing end is set to the fixed station for detecting the arrangement order of the wire harnesses connected to the chip. The pressing assembly is mounted on the frame, and its pressing end is positioned to point towards the fixed station, for pressing the chip onto the housing; The hot riveting assembly is mounted on the frame, and its hot riveting end is used to rivet the end of the rivet connecting the chip to the housing. The flatness detection component is mounted on the rack, and its detection end is used to detect the flatness of the chip; The hot riveting diameter detection component is mounted on the frame, and its detection end is used to detect the diameter of the rivet end after hot riveting.

2. The rotary hot riveting machine for eddy current sensors according to claim 1, characterized in that, The rotary table includes a turntable, a rotating shaft, a motor, a fixing box, and a wire harness clip. The turntable is rotatably connected to the frame via the rotating shaft. The motor is installed at the bottom of the frame, and the output end of the motor is connected to the rotating shaft. The fixing box is installed on the top of the rotary table, and the top of the fixing box has a slot for engaging with the outer shell. The wire harness clip is fixedly installed on the top of the rotary table and is used for wire harness connection with the chip.

3. The rotary hot riveting machine for eddy current sensors according to claim 2, characterized in that, The number of the fixing boxes and the wire harness clips are both multiple and are evenly distributed along the circumference of the turntable.

4. The rotary hot riveting machine for eddy current sensors according to claim 3, characterized in that, The number of fixed boxes is five, and the turntable can be rotated so that the five fixed boxes are respectively facing the positions of the ribbon cable detection component, the pressing component, the hot riveting component, the flatness detection component, and the hot riveting diameter detection component.

5. The rotary hot riveting machine for eddy current sensors according to claim 1, characterized in that, The ribbon cable testing assembly includes a ribbon cable testing bracket and a ribbon cable testing camera. The ribbon cable testing bracket is fixedly mounted on the frame, and the ribbon cable testing camera is mounted on the ribbon cable testing bracket.

6. The rotary hot riveting machine for eddy current sensors according to claim 1, characterized in that, The pressing assembly includes a pressing bracket, a pressing drive, and a pressing head. The pressing bracket is fixedly mounted on the frame, and the pressing drive is fixedly mounted on the pressing bracket. The output end of the pressing drive is located above the rotary table and connected to the pressing head, and is used to drive the pressing head to move vertically.

7. The rotary hot riveting machine for eddy current sensors according to claim 1, characterized in that, The hot riveting assembly includes a hot riveting bracket, a first lifting component, and a hot riveting component. The hot riveting bracket is fixedly mounted on the frame, and the first lifting component is fixedly mounted on the hot riveting bracket. The output end of the first lifting component is located above the rotary table and connected to the hot riveting component, and is used to drive the hot riveting component to move in the vertical direction.

8. The rotary hot riveting machine for eddy current sensors according to claim 7, characterized in that, The hot riveting assembly further includes a second lifting component and a positioning block. The second lifting component is fixedly mounted on the hot riveting bracket. The output end of the second lifting component is located above the rotary table and connected to the positioning block, and is used to drive the positioning block to move in the vertical direction. The positioning block and the hot riveting component are staggered in the horizontal plane. The positioning block is used to press the chip onto the outer shell.

9. The rotary hot riveting machine for eddy current sensors according to claim 1, characterized in that, The flatness detection assembly includes a lifting component, a horizontal plate, and multiple pressure sensors. The lifting component is mounted on the frame, and its top is an output end connected to one side of the horizontal plate to drive the horizontal plate to move vertically. The other side of the horizontal plate extends above the rotary table. The multiple pressure sensors are evenly arranged along a circumference at the bottom of the other side of the horizontal plate, and the multiple pressure sensors are used to abut against different positions of the chip.

10. The rotary hot riveting machine for eddy current sensors according to claim 1, characterized in that, The hot riveting diameter detection assembly includes a hot riveting diameter detection bracket, a hot riveting diameter detection lifting component, and a hot riveting diameter detection camera. The hot riveting diameter detection bracket is fixedly mounted on the frame, and the hot riveting diameter detection lifting component is mounted on the hot riveting diameter detection bracket. The output end of the hot riveting diameter detection lifting component is located above the rotary table and connected to the hot riveting diameter detection camera, and is used to drive the hot riveting diameter detection camera to move in the vertical direction.

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