Oxygen sensor assembling equipment and oxygen sensor production line

Abstract

The invention discloses oxygen sensor assembling equipment and an oxygen sensor production line, the oxygen sensor assembling equipment comprises a wire harness assembling device, a necking processing device and a carrying module, the carrying module is connected to the wire harness assembling device and the necking processing device, the wire harness assembling device comprises a wire harness press-fitting module and a testing module, and the testing module is connected with the wire harness press-fitting module. The test module comprises a test placement seat and a test connector, and the test placement seat is located between the wire harness press-fitting module and the test connector and is suitable for placing part of the wire harness; the necking processing device is used for necking the oxygen sensor assembled by the wire harness assembling device; according to the wiring harness assembling device, the testing connector and the wiring harness press-fitting module are combined, functional testing can be carried out after the wiring harness and the oxygen sensor base body are assembled, the wiring harness is divided into two parts which do not influence each other in deformation while the testing placement base supports the wiring harness, and therefore the wiring harness assembling device is effectively adapted to assembling and functional testing of wiring harnesses with different lengths.

Description

Technical Field

[0001] The present invention relates to the technical field of oxygen sensor production equipment, and in particular to oxygen sensor assembly equipment and an oxygen sensor production line. Background Art

[0002] In the related art, during the production process of an oxygen sensor, it is necessary to assemble an oxygen sensor substrate and a wiring harness to form the oxygen sensor, and perform a functional test to ensure that the assembled oxygen sensor functions normally.

[0003] However, in the process of realizing the invention, the inventors found that in the related art, due to the different lengths of the wiring harnesses of different oxygen sensors, in order to ensure the stability of the connection between the assembly of one end of the wiring harness and the oxygen sensor base and the connection of the other end of the wiring harness to the test interface for functional testing, it is usually necessary for staff to remove the assembled oxygen sensor from the wiring harness press-fitting module and manually install it to the test module for testing, which results in low production efficiency. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides oxygen sensor assembly equipment and an oxygen sensor production line that automate the wiring harness assembly and necking processes during oxygen sensor production. The equipment also utilizes a test placement slot to split the wiring harness into two sections, located outside the test placement slot at either end. The bending of the wiring harness between the two sections is independent of each other, and during assembly and testing of wiring harnesses of varying lengths, the wiring harness connector can be placed on a wiring harness locator and assembled with the oxygen sensor base while maintaining a stable connection to the test connector at the other end.

[0005] In one aspect, an embodiment of the present invention provides an oxygen sensor assembly device for processing an oxygen sensor, wherein the oxygen sensor includes an oxygen sensor substrate and a wiring harness, wherein a connector of the wiring harness is sealedly connected to the oxygen sensor substrate, and includes: The wiring harness assembly device includes a wiring harness press-fitting module and a test module. The wiring harness press-fitting module includes a wiring harness positioning seat and a wiring harness assembly pressure head. The wiring harness positioning seat is suitable for supporting the wiring harness and the oxygen sensor base. The wiring harness assembly pressure head is suitable for pressing the oxygen sensor base to assemble it with the connector of the wiring harness. The test module includes a test connector and a test placement seat. The test placement seat is located between the wiring harness positioning seat and the test connector. The test placement seat is provided with a test placement slot. The test placement slot is suitable for placing a portion of the wiring harness. The test connector is suitable for being electrically connected to the wiring harness. a necking processing device, adapted to neck the outer surface of the oxygen sensor base to seal the oxygen sensor base to the wiring harness; The transport module is connected to the wire harness assembly device and the necking processing device and is suitable for transporting the oxygen sensor substrate.

[0006] According to some embodiments of the present invention, the shrinking processing device includes a shrinking processing mechanism and a wire harness pressing mechanism, the shrinking processing mechanism includes a positioning fixture, a shrinking drive assembly and a plurality of shrinking pins arranged around the positioning fixture, the positioning fixture is suitable for placing the oxygen sensor base, the shrinking pins can move along the radial direction of the positioning fixture, and move toward the positioning fixture under the drive of the shrinking drive assembly to press the outer surface of the oxygen sensor base to achieve shrinkage; the wire harness pressing mechanism includes a wire harness pressing head, the wire harness pressing head is arranged above the axis of the positioning fixture, the wire harness pressing head is provided with a wire harness through-hole, and the wire harness through-hole is suitable for the wire harness to pass through.

[0007] According to some embodiments of the present invention, the wire harness pressing mechanism further includes a wire harness holding assembly, which is located above the wire harness pressing mechanism and is set a distance away from the wire harness pressing mechanism. The wire harness holding assembly is provided with a wiring groove, which is suitable for the wire harness to pass through.

[0008] According to some embodiments of the present invention, the wire harness pressing mechanism also includes a support frame, a first movable module and a first drive assembly, the wire harness holding assembly is fixed to the support frame, the first side of the first movable module is slidably connected to the support frame along the axial direction of the positioning fixture, the second side of the first movable module is connected to the wire harness pressing head, and the first movable module is suitable for moving under the drive of the first drive assembly.

[0009] According to some embodiments of the present invention, the wiring harness pressing head includes two clamping jaws capable of relative movement along a first direction, at least one of the clamping jaws is provided with part or all of the wiring harness through-hole, and the two clamping jaws cooperate to form a complete wiring harness through-hole.

[0010] According to some embodiments of the present invention, the first moving module includes a moving base, a first driving portion, and a first guiding portion, the moving base is slidably connected to the supporting frame, and the clamping claw is adapted to move along the first direction under the drive of the first driving portion; The first guide portion is provided between the clamping claw and the first driving portion, and the clamping claw is slidably connected to the movable substrate through the first guide portion.

[0011] According to some embodiments of the present invention, the harness pressing mechanism further includes a second movable module, and the support frame is adapted to move along a second direction driven by the second movable module, wherein the second direction is set at an angle to the axial direction of the positioning fixture.

[0012] According to some embodiments of the present invention, the wire harness holding assembly includes two relatively movable clamping arms and a plurality of elastic members, wherein the clamping arms are adapted to move toward each other under the drive of the elastic restoring force of the elastic members to clamp the wire harness; Wherein, the first end of the elastic member is connected to the support frame, and the second end of the elastic member is connected to the clamping arm; or, Two ends of the elastic member are respectively connected to different clamping arms.

[0013] According to some embodiments of the present invention, the two clamping arms are rotatably connected to the support frame and have the same rotation axis, the two ends of the elastic member are respectively connected to the first ends of the clamping arms, and the second ends of the two clamping arms constitute the notches of the wiring groove.

[0014] On the other hand, an embodiment of the present invention further provides an oxygen sensor production line, comprising the oxygen sensor assembly equipment described above.

[0015] The embodiments of the present invention have at least the following beneficial effects: first, the wire harness assembly device and the shrinkage processing device are connected and arranged to realize the rapid assembly and shrinkage sealing of the oxygen sensor base and the wire harness; and, in the wire harness assembly device, the wire harness pressing module and the test module are combined, and the electrical connection between the wire harness and the test connector is completed while the wire harness is loaded onto the wire harness positioning seat, ensuring that the test connector can be immediately functionally tested after the connector of the wire harness and the oxygen sensor base are press-fitted, thereby effectively improving production efficiency; further, by setting a test placement groove, the wire harness is split into two parts for limiting, and the bending of the wire harnesses between different parts does not affect each other, ensuring that for wire harnesses of different lengths, the bending deformation of the wire harness can be limited to one of the two parts, ensuring that the connector of the wire harness can be placed on the wire harness positioning seat while the other end of the wire harness can be stably connected to the test connector.

[0016] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which: Figure 1 A top view of an oxygen sensor assembly device according to an embodiment of the present invention; Figure 2 This is a structural schematic diagram of a wire harness assembly device of an oxygen sensor assembly device according to an embodiment of the present invention; Figure 3 for Figure 2 Enlarged view of the middle part B; Figure 4 for Figure 3 A magnified view of the middle part C; Figure 5 Schematic diagram of the structure of a necking processing device according to an embodiment of the present invention; Figure 6 for Figure 5 Enlarged view of the part A in the middle; Figure 7 Schematic diagram of the structure of the wire harness pressing mechanism according to an embodiment of the present invention; Figure 8 A front view of a necking processing device according to an embodiment of the present invention; Figure 9 A schematic diagram of a portion of the structure of a necking processing mechanism according to an embodiment of the present invention; Figure 10 Schematic diagram of the structure of an oxygen sensor according to an embodiment of the present invention.

[0018] Reference numerals: 10. Neck processing device; 100, necking processing mechanism; 110, positioning fixture; 120, necking ejector pin; 121, slider; 130, necking drive assembly; 140, fixed ring; 150, rotating ring; 151, slideway; 200, wire harness pressing mechanism; 210, wire harness pressing head; 211, wire harness through hole; 212, clamping claw; 220, wire harness holding assembly; 221, wiring trough; 222, clamping arm; 223, elastic member; 230, support frame; 240, first movable module; 241, movable base plate; 242, first driving unit; 243, first guide unit; 250, first driving assembly; 260, second movable module; 30. Wire harness assembly device; 300. Wire harness press-fitting module; 310. Wire harness positioning seat; 311. Wire harness positioning slot; 320. Wire harness assembly press head; 330. Guide mechanism; 331. Guide clamp; 332. Guide bracket; 333. Guide movable module; 340. Test module; 341. Test connector; 342. Anti-foolproof buckle; 343. Reset element; 344. Test placement seat; 3441. Test placement slot; 345. First detection element; 350. Marking module; 910. Oxygen sensor substrate; 920. Wiring harness. DETAILED DESCRIPTION

[0019] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0020] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0021] In the description of the present invention, "several" means one or more, "multiple" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, and "above," "below," and "within" are understood to include the number itself. The use of terms such as "first" and "second" is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0022] In the description of the present invention, unless otherwise clearly defined, words such as “setting”, “installation” and “connection” should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above words in the present invention based on the specific content of the technical solution.

[0023] Before introducing the oxygen sensor assembly equipment of the embodiment of the present invention, it is necessary to explain the oxygen sensor to which the oxygen sensor assembly equipment of the present invention is applicable. Figure 10 As shown, the oxygen sensor includes an oxygen sensor base 910 and a wiring harness 920 connected to one end of the oxygen sensor base 910 , and a connector of the wiring harness 920 is sealed and connected to the oxygen sensor.

[0024] Please refer to Figures 1 to 3As shown, on the one hand, an embodiment of the present invention provides an oxygen sensor assembly device, including a wire harness assembly device 30, a necking processing device 10 and a handling module (not shown in the figure), the wire harness assembly device 30 includes a wire harness pressing module 300 and a testing module 340, the wire harness pressing module 300 includes a wire harness positioning seat 310 and a wire harness assembly pressure head 320, the wire harness positioning seat 310 is suitable for carrying the wire harness 920 and the oxygen sensor base 910, the wire harness assembly pressure head 320 is suitable for pressing the oxygen sensor base 910 to assemble it with the connector of the wire harness 920; the testing module 340 includes a testing The connector 341 and the test placement seat 344, the test placement seat 344 is located between the wire harness positioning seat 310 and the test connector 341, the test placement seat 344 is provided with a test placement groove 3441, the test placement groove 3441 is suitable for placing part of the wire harness 920; the test connector 341 is suitable for being electrically connected to the wire harness 920; the shrinking processing device 10 is suitable for shrinking the outer surface of the oxygen sensor base 910 so that the oxygen sensor base 910 is sealed and connected to the wire harness 920; the handling module is connected to the wire harness assembly device 30 and the shrinking processing device 10, and is suitable for handling the oxygen sensor base 910.

[0025] According to the oxygen sensor assembly device of the embodiment of the present invention, the connector of the wiring harness 920 is fixed to the wiring harness positioning seat 310, and the rest of the wiring harness 920 extends to pass through the test placement slot 3441 and is connected to the test connector 341. The test placement slot 3441 divides the wiring harness 920 into two parts while carrying the wiring harness 920. The first part is the part from the wiring harness positioning seat 310 to the test placement slot 3441, and the second part is the part from the test placement slot 3441 to the test connector 341. It can be understood that due to the limitation of the wiring harness 920 placement slot, the wiring harness 920 is placed in the test position. The bending between the two parts of the wiring harness 920 will not affect each other. Specifically, if the remaining length of the first part of the wiring harness 920 is different based on different types of wiring harnesses 920, the first part of the wiring harness 920 will bend to ensure that the connector of the wiring harness 920 is located at the wiring harness positioning seat 310, and the bending deformation of the first part of the wiring harness 920 is limited to between the wiring harness positioning seat 310 and the test placement slot 3441, and will not affect the second part of the wiring harness 920. The second part of the wiring harness 920 can be stably connected to the test connector 341.

[0026] Subsequently, the harness assembly pressure head 320 presses against the oxygen sensor base 910 to assemble it with the connector of the harness 920. When the assembly is completed, the current of the test connector 341 is immediately connected to the oxygen sensor base 910, and the oxygen sensor is functionally tested. The tested oxygen sensor is transferred to the shrinking processing device 10 through the conveying module, and the shrinking processing device 10 shrinks the outer surface of the oxygen sensor base 910 to seal the oxygen sensor base 910 and the harness 920.

[0027] It should be noted that in the related art, during the production process of oxygen sensors, the assembly of the oxygen sensor base 910 and the wiring harness 920 and the testing of the oxygen sensor are usually completed by different machines, and the staff are required to carry the assembled oxygen sensor from different modules and install the oxygen sensor for testing, which results in low production efficiency; and even when the wiring harness pressing module 300 and the test module 340 are combined together, due to the different lengths of the wiring harness 920 of different types of oxygen sensors, when the connector of the wiring harness 920 is fixed to the wiring harness positioning seat 310, the other end is affected by the bending of the wiring harness, and there is a certain insertion angle tilt, resulting in an unstable connection with the test connector 341, that is, it cannot be well adapted to different types of oxygen sensors.

[0028] According to the oxygen sensor assembly equipment of the embodiment of the present invention, first, the wire harness assembly device 30 and the shrinkage processing device 10 are connected and set to realize the rapid assembly and shrinkage sealing of the oxygen sensor base 910 and the wire harness 920; and, in the wire harness assembly device 30, the wire harness press-fitting module 300 and the test module 340 are combined, and while the wire harness 920 is being fed to the wire harness positioning seat 310, the electrical connection between the wire harness 920 and the test connector 341 is completed, ensuring that the connector of the wire harness 920 is press-fitted to the oxygen sensor base 910. The rear test connector 341 can immediately perform functional testing, effectively improving production efficiency; further, by setting a test placement slot 3441, the wiring harness 920 is split into two parts for positioning, and the bending of the wiring harness 920 between different parts does not affect each other, ensuring that for wiring harnesses 920 of different lengths, the bending deformation of the wiring harness 920 can be limited to one of the two parts, ensuring that the connector of the wiring harness 920 can be placed on the wiring harness positioning seat 310, while the other end of the wiring harness 920 can also be stably connected to the test connector 341.

[0029] In this embodiment, the transport module can be a robot arm, a transport mechanism formed by overlapping several linear modules, etc. Of course, it can also be directly transported manually by staff.

[0030] In some embodiments, combined Figure 1 、 Figure 5 、 Figure 6 、 Figure 8 and Figure 10As shown, the shrinking processing device 10 includes a shrinking processing mechanism 100 and a wire harness pressing mechanism 200. The shrinking processing mechanism 100 includes a positioning fixture 110, a shrinking drive assembly 130 and a plurality of shrinking ejectors 120 arranged around the positioning fixture 110. The positioning fixture 110 is suitable for placing the oxygen sensor base 910. The shrinking ejectors 120 can move along the radial direction of the positioning fixture 110 and move toward the positioning fixture 110 under the drive of the shrinking drive assembly 130 to press the outer surface of the oxygen sensor base 910 to achieve shrinkage; the wire harness pressing mechanism 200 includes a wire harness pressing head 210. The wire harness pressing head 210 is arranged above the axis of the positioning fixture 110. The wire harness pressing head 210 is provided with a wire harness through hole 211. The wire harness through hole 211 is suitable for the wire harness 920 to pass through.

[0031] In this embodiment, in the shrinking processing device 10, the oxygen sensor base 910 is placed in the positioning fixture 110 for positioning, and the shrinking drive assembly 130 drives the shrinking ejector pin 120 to move toward the oxygen sensor base 910, and gradually compresses the oxygen sensor base 910 to complete the shrinking. During the compression process, the wire harness pressing head 210 of the wire harness pressing mechanism 200 always presses the connector of the wire harness 920, so that the connector of the wire harness 920 remains connected to the internal components of the oxygen sensor base 910, and a sealed fit is formed between the wire harness 920 and the oxygen sensor after shrinking.

[0032] It should be noted that, during the production process of the oxygen sensor, the oxygen sensor base 910 needs to be subjected to a shrinking process so that the oxygen sensor base contained in the oxygen sensor base 910 and the oxygen sensor chip inside the sensor base can be precisely matched. Existing oxygen sensor shrinking equipment usually shrinks the oxygen sensor base 910 directly. Under the pushing force of the shrinking ejector pin 120, the wiring harness 920 tends to separate from the oxygen sensor base 910, resulting in an unstable connection between the internal components of the shrunken oxygen sensor base 910 and the interface of the wiring harness 920, and poor sealing of the connection between the wiring harness 920 and the oxygen sensor base 910.

[0033] In this embodiment, on the basis of the shrinking of the oxygen sensor base 910 by the shrinking processing mechanism 100, the wire harness pressing mechanism 200 is used to ensure that during the shrinking process of the oxygen sensor base 910, the connector of the wire harness 920 is always tightly connected to the components inside the oxygen sensor and will not fall off the oxygen sensor base 910, effectively ensuring the sealed connection between the shrunken oxygen sensor base 910 and the wire harness 920, thereby improving the sealing performance of the produced oxygen sensor; moreover, the present invention provides a wire harness through hole 211 in the wire harness pressing head 210 for the wire harness 920 to pass through, and the wire harness pressing head 210 will not interfere with the wire harness 920 during the pressing process, ensuring that the pressing direction of the wire harness pressing head 210 can be the same as the plug-in direction of the connector of the wire harness 920, thereby avoiding the problem of poor one-sided sealing effect in the sealing cooperation between the wire harness 920 and the oxygen sensor base 910.

[0034] In this embodiment, the wire harness pressure head 210 is located above the positioning fixture 110, that is, when the oxygen sensor base 910 is placed on the positioning fixture 110, the wire harness 920 is located above the oxygen sensor base 910, so that the self-gravity of the wire harness 920 can be used to overcome the thrust generated when part of the oxygen sensor base 910 is shrunk, thereby improving the sealing and fitting effect; of course, in other embodiments, the wire harness pressure head 210 can also be set to be located in other orientations, such as below the positioning fixture 110, and the corresponding wire harness pressure head 210 needs to provide a greater driving force to overcome the gravity of the wire harness 920.

[0035] In this embodiment, combined with Figure 6 As shown, eight shrinking ejector pins 120 are disposed around the oxygen sensor substrate 910 ; in other embodiments, the number of shrinking ejector pins 120 may be adjusted based on actual needs.

[0036] In some embodiments, combined Figure 6 As shown, the wire harness pressing mechanism 200 also includes a wire harness holding assembly 220, which is located above the wire harness pressing mechanism 200 and is set a distance away from the wire harness pressing mechanism 200. The wire harness holding assembly 220 is provided with a wiring groove 221, which is suitable for the wire harness 920 to pass through.

[0037] In this embodiment, the wiring harness 920 passes through the wiring groove 221 and the wiring harness through-hole 211. By controlling the distance between the wiring harness retaining assembly 220 and the wiring harness pressing mechanism 200, it is ensured that the wiring harness 920 located above the oxygen sensor base 910 will not fall between the shrinking pins 120 and affect the shrinking process.

[0038] In this embodiment, the range of the distance is set to be 20 cm to 30 cm, such as 25 cm. In other embodiments, the distance can be adjusted based on different lengths of the harness 920 .

[0039] In some embodiments, combined Figure 6 As shown, the wire harness pressing mechanism 200 also includes a support frame 230, a first movable module 240 and a first drive assembly 250. The wire harness holding assembly 220 is fixed to the support frame 230. The first side of the first movable module 240 is slidably connected to the support frame 230 along the axial direction of the positioning fixture 110. The second side of the first movable module 240 is connected to the wire harness pressing head 210. The first movable module 240 is suitable for moving under the drive of the first drive assembly 250.

[0040] In this embodiment, the first driving assembly 250 drives the first movable module 240 to move along the Z direction shown in the figure, and the wire harness pressing head 210 connected to the first movable module 240 moves with it and presses against the wire harness 920. During the movement of the wire harness pressing head 210, the distance between the wire harness holding assembly 220 and the wire harness pressing head 210 gradually increases, and the wire harness 920 between the two is also synchronously pulled, so that the wire harness 920 below the wire harness holding assembly 220 is always coaxial with the positioning fixture 110, avoiding the problem of poor sealing effect on one side of the sealing between the wire harness 920 and the oxygen sensor base 910.

[0041] In this embodiment, the first driving assembly 250 adopts a cylinder. Of course, a slide module, a screw module, etc. can also be adopted.

[0042] In this embodiment, the first movable module 240 is slidably connected to the support frame 230 via a slide module. Of course, the sliding connection can also be in the form of a hole-shaft fit or a screw module.

[0043] In some embodiments, combined Figure 6 As shown, the harness pressing head 210 includes two clamping jaws 212 that can move relative to each other along a first direction (X direction in the figure), at least one of the clamping jaws 212 is provided with part or all of the harness through-hole 211, and the two clamping jaws 212 cooperate to form a complete harness through-hole 211.

[0044] In this embodiment, by setting a relatively movable clamp 212, the clamp 212 can move flexibly based on different positions of the wiring harness 920, and the clamp 212 can not only form the wiring harness through hole 211 but also directly clamp the wiring harness 920. For the wiring harness 920 whose connector part diameter is larger than the part passing through the wiring harness through hole 211 on the wiring harness 920, the clamp 212 can form a form in which the wiring harness pressing head 210 presses the connector of the wiring harness 920. For the part whose connector part diameter is less than or equal to the part passing through the wiring harness through hole 211 on the wiring harness 920, the wiring harness 920 can be directly clamped by the clamp 212 to drive the connector of the wiring harness 920 to cooperate with the oxygen sensor base 910, thereby effectively improving the adaptability of the wiring harness pressing head 210 to wiring harnesses 920 with different structural forms.

[0045] In this embodiment, half of the wiring harness through-hole 211 is set on a single clamping jaw 212. Of course, the spatial distribution of the wiring harness through-hole 211 on different clamping jaws 212 can be different. For example, a groove is set on one clamping jaw 212 and a plane is set on the other, and the groove and the plane cooperate to form a complete wiring harness through-hole 211.

[0046] In some embodiments, combined Figure 7 As shown, the first movable module 240 includes a movable base plate 241, a first driving portion 242 and a first guide portion 243. The movable base plate 241 is slidably connected to the support frame 230, and the clamping jaw 212 is suitable for moving along the first direction (X direction in the figure) under the drive of the first driving portion 242; the first guide portion 243 is arranged between the clamping jaw 212 and the first driving portion 242, and the clamping jaw 212 is slidably connected to the movable base plate 241 through the first guide portion 243.

[0047] In this embodiment, the movement of the clamping jaw 212 is achieved jointly by the first guide portion 243 and the first driving portion 242, and the first guide portion 243 is arranged between the clamping jaw 212 and the first driving portion 242 so that the overall weight of the clamping jaw 212 is borne by the first guide portion 243. The clamping jaw 212 will not generate excessive force on the first driving member, effectively ensuring the efficient and precise movement of the first driving member, so as to drive the clamping jaw 212 to achieve efficient and precise movement synchronously.

[0048] In this embodiment, the first guide portion 243 adopts a slide module; of course, in other embodiments, it can also be in the form of a screw module and a hole-shaft combination, as long as it has the guiding and load-bearing capabilities.

[0049] In this embodiment, the first driving part 242 adopts a cylinder. In other embodiments, a slide module, a screw module, etc. can also be adopted.

[0050] In some embodiments, combined Figures 5 to 7 As shown, the harness pressing mechanism 200 further includes a second movable module 260 , and the support frame 230 is adapted to move along a second direction (Y direction in the figure) driven by the second movable module 260 , and the second direction is set at an angle to the axis direction of the positioning fixture 110 .

[0051] In this embodiment, the axial direction of the positioning fixture 110 is the Z direction, and the second direction is the Y direction, and the two are set at 90 degrees. In other embodiments, they can also be set to other angles so that the support frame 230 can move along the second direction to the axial extension direction away from the positioning fixture 110.

[0052] In this embodiment, the movement of the support frame 230 is achieved by setting a second movable module 260, and the wiring harness holding assembly 220, the first movable module 240, the first driving assembly 250, etc. connected to the support frame 230 move accordingly to avoid the process of installing the oxygen sensor base 910 to the positioning fixture 110, thereby reducing the difficulty of loading and unloading.

[0053] In this embodiment, the second moving module 260 is a slide module. In other embodiments, it may also be a cylinder, a screw module, etc.

[0054] In some embodiments, the wire harness retaining assembly 220 includes two clamping arms 222 capable of relative movement and a plurality of elastic members 223, wherein the clamping arms 222 are suitable for moving toward each other to clamp the wire harness 920 under the drive of the elastic restoring force of the elastic members 223; wherein the first end of the elastic member 223 is connected to the support frame 230, and the second end of the elastic member 223 is connected to the clamping arm 222; or, the two ends of the elastic member 223 are respectively connected to different clamping arms 222.

[0055] In this embodiment, when the wiring harness 920 enters the wiring trough 221 along the notch of the wiring trough 221, the wiring harness 920 pushes the clamping arm 222, causing the clamping arm 222 to move and drive the elastic member 223 connected to the clamping arm 222 to be compressed. The elastic reset force of the elastic member 223 ensures that the clamping arm 222 always adheres to the surface of the wiring harness 920 and clamps the wiring harness 920 during the movement of the wiring harness 920 in the wiring trough 221; and, based on the different thicknesses of the wiring harness 920, the opening of the wiring trough 221 can be adaptively adjusted; further, for the uneven part of the surface of the wiring harness 920, the expansion and contraction of the elastic member 223 can still ensure that the clamping arm 222 clamps the wiring harness 920.

[0056] In this embodiment, the elastic member 223 is a linear spring. In other embodiments, the elastic member 223 may also be a torsion spring, a silicone pad, or other component with elastic reset capability.

[0057] In some embodiments, combined Figure 6 As shown, the two clamping arms 222 are rotatably connected to the support frame 230 and have the same rotation axis. The two ends of the elastic member 223 are respectively connected to the first ends of the clamping arms 222 , and the second ends of the two clamping arms 222 form the notches of the wiring groove 221 .

[0058] In this embodiment, the two clamping arms 222 form a "scissor-type" structure, and an elastic member 223 is connected between the two clamping arms 222, so that the rotation angles of the two clamping arms 222 are always the same. A wiring harness 920 of any specification is clamped in the wiring groove 221, which can ensure that the center of the wiring harness 920 is located at the symmetry center of the two clamping arms 222, and ensure that the wiring harness 920 is always in a straight line between the wiring harness retaining assembly 220 and the wiring harness pressing head 210, and the extension direction is the same as the axis of the positioning fixture 110, so as to ensure the uniform pressing effect of the wiring harness pressing head 210.

[0059] In other embodiments, two clamping arms 222 may be provided to move independently, and each clamping arm 222 may be connected to the support base via a separate elastic member 223 .

[0060] In some embodiments, combined Figure 5 、 Figure 6 、 Figure 8 and Figure 9 As shown, the necking processing mechanism 100 also includes a coaxially arranged fixed ring 140 and a rotating ring 150. The fixed ring 140 is provided with a hollow axis, which is suitable for placing the positioning fixture 110. The necking ejector 120 is slidably connected to the fixed ring 140; the rotating ring 150 can rotate relative to the fixed ring 140 under the drive of the necking drive assembly 130. One of the rotating ring 150 and the necking ejector 120 is provided with a slide groove 151, and the other is provided with a slider 121 inserted in the slide groove 151, and the slider 121 can move along the slide groove 151; the slide groove 151 is in the radial direction of the rotating ring 150, the first end is located on the inner side of the rotating ring 150, and the second end extends from the inner side of the rotating ring 150 to the outer side of the rotating ring 150, and the first end and the second end are located on different axes.

[0061] In this embodiment, taking the example of providing a slide groove 151 on the rotating ring 150 and a slider 121 on the shrinking ejector 120, the shrinking drive assembly 130 drives the rotating ring 150 to rotate around the fixed ring 140, and the slide groove 151 on the rotating ring 150 rotates around the fixed ring 140 synchronously. The rotation of the slide groove 151 is converted into a linear motion of the shrinking ejector 120 through the matching slider 121, so as to realize shrinking by pressing the oxygen sensor base 910 on the positioning fixture 110.

[0062] In this embodiment, a rotating ring 150 is provided to enable a shrinking drive assembly 130 to drive multiple shrinking pins 120 to move simultaneously, and each shrinking pin 120 synchronously approaches or moves away from the positioning fixture 110, thereby ensuring radial shrinking uniformity of the oxygen sensor substrate 910.

[0063] In this embodiment, the slide groove 151 is in the form of a curve. It can be understood that by changing the extension form of the slide groove 151, the movement rate of the shrinking ejector pin 120 can be adjusted. For example, when the slide groove 151 is linear, the shrinking ejector pin 120 can move in a straight line at a uniform speed. By changing the curvature of the end of the slide groove 151, the rate at which the shrinking ejector pin 120 is pressed against the oxygen sensor base 910 can be controlled. For example, by reducing the pressing rate, the shrinking process is smoother, the shrinking effect is improved, and the pressing force required to be provided by the wire harness pressing mechanism 200 is reduced.

[0064] In some embodiments, combined Figure 2 、 Figure 3 and Figure 10As shown, the wiring harness assembly device 30 further includes a marking module 350 , which is located between the test placement slot 3441 and the test connector 341 and faces the wiring harness 920 .

[0065] In this embodiment, the marking module 350 is used to print identification information on the surface of the wire harness 920, and the marking process is performed simultaneously with the press-fitting process of the wire harness press-fitting module 300, thereby effectively improving the production efficiency of the oxygen sensor.

[0066] In this embodiment, the marking module 350 can be a laser marking machine, a laser engraving marking machine, etc.

[0067] In some embodiments, combined Figure 2 、 Figure 3 and Figure 10 As shown, the extension direction of the test placement slot 3441 is the same as the extension direction of the test connector 341, so that the extension paths of the parts of different harnesses 920 located between the test placement seat 344 and the test connector 341 are the same.

[0068] In this embodiment, the extension direction of the test placement slot 3441 is the same as the extension direction of the test connector 341, so that the part of the wiring harness 920 between the test connector 341 and the test positioning slot is always straight and in the same position, to ensure that the marking module 350 can stably print marks on the wiring harness 920.

[0069] In other embodiments, the marking module 350 can also be set above the test placement slot 3441, and the wiring harness 920 in the test placement slot 3441 can be placed along the extension direction of the test placement slot 3441. Similarly, the position of the printed mark on each wiring harness 920 can always correspond to the marking module 350.

[0070] In other embodiments, the test placement slot 3441 can also be directly extended to dock with the test connector. In this case, for any shape of the test placement slot 3441, the printing position on each wiring harness 920 can always be kept corresponding to the marking module 350.

[0071] In some embodiments, combined Figures 2 to 4 As shown, the test module 340 also includes an anti-foolproof buckle 342, which is movably connected to one side of the test connector 341. The anti-foolproof buckle 342 can switch between an anti-foolproof state and an open state under the action of an external driving force; the anti-foolproof state is a state in which the hook of the anti-foolproof buckle 342 at least partially overlaps with the test connector 341 on the orthographic projection of the disengagement direction of the test connector 341 to limit the wiring harness 920 from disengaging from the test connector 341; the open state is a state in which the hook of the anti-foolproof buckle 342 does not overlap with the test connector 341 on the orthographic projection of the disengagement direction.

[0072] In this embodiment, the state switching of the anti-foolproof buckle 342 is adapted to the detection result of the test connector 341. For example, when the detection result of the test connector 341 is unqualified, the anti-foolproof buckle 342 is switched from the open state to the anti-foolproof state to restrict the staff or the handling module from pulling out the wiring harness 920 from the test connector 341. Of course, it can also be, for example, after the wiring harness 920 is plugged into the test connector 341, the anti-foolproof buckle 342 is switched from the open state to the anti-foolproof state. When the detection result of the test connector 341 is qualified, the anti-foolproof buckle 342 is switched from the anti-foolproof state to the open state again. If the detection result is unqualified, the anti-foolproof buckle 342 remains in the anti-foolproof state.

[0073] In this embodiment, by setting the state switching of the anti-foolproof buckle 342, it is effectively prevented that the staff or the handling module mixes the oxygen sensors with qualified and unqualified test results of the test connector 341.

[0074] In this embodiment, for an oxygen sensor that fails the test, a worker needs to confirm and release the foolproof state of the foolproof buckle 342 before the sensor can be removed, thereby ensuring that each unqualified oxygen sensor is scrapped.

[0075] In this embodiment, the “external driving force” can be Figure 4 The push is provided by the cylinder, of course, it can also be a motor, oil cylinder, etc.

[0076] In some embodiments, combined Figures 2 to 4 As shown, the test module 340 also includes a reset member 343, the two ends of which are respectively connected to the anti-foolproof buckle 342 and the test connector 341, and the reset member 343 is suitable for pushing the anti-foolproof buckle 342 to switch from the open state to the anti-foolproof state.

[0077] In this embodiment, when the test connector 341 is not in use, the anti-foolproof buckle 342 is in an anti-foolproof state under the action of the reset member 343. When the wiring harness 920 is plugged into the test connector 341, the wiring harness 920 pushes the anti-foolproof buckle 342 and compresses the reset member 343, so that the anti-foolproof buckle 342 switches from the anti-foolproof state to the open state until the wiring harness 920 is fully plugged into the test connector 341. The wiring harness 920 releases the push on the anti-foolproof buckle 342, and under the action of the reset member 343, the anti-foolproof buckle 342 switches from the open state to the anti-foolproof state to limit and fix the wiring harness 920. When the test connector 341 is tested, for the wiring harness 920 that passes the test, the anti-foolproof buckle 342 will switch from the anti-foolproof state to the open state under the action of an external driving force; for the wiring harness 920 that fails the test, the anti-foolproof buckle 342 continues to maintain the anti-foolproof state.

[0078] In this embodiment, the reset member 343 enables the anti-foolproof buckle 342 to automatically switch from the open state to the anti-foolproof state without external drive, effectively reducing the control process required for external drive, and the physical structure is simpler and more reliable.

[0079] In this embodiment, the reset member 343 may be a linear spring. Of course, a torsion spring, a silicone pad, etc. may also be used.

[0080] In some embodiments, combined Figure 3 As shown, the test module 340 further includes a first detection member 345 , the detection end of the first detection member 345 faces the test placement slot 3441 and is suitable for detecting the wiring harness 920 .

[0081] In this embodiment, when the first detection member 345 determines that the wiring harness 920 is present, the wiring harness assembly press head 320 can be activated to press down and the test connector 341 can be detected. The first detection member 345 can be a component with object recognition capabilities such as a laser sensor or an image recognition device.

[0082] In some embodiments, combined Figure 2 and Figure 3 As shown, the wire harness pressing module 300 also includes a guiding mechanism 330, and the wire harness positioning seat 310, the guiding mechanism 330 and the wire harness assembly press head 320 are arranged in sequence along the third direction; the guiding mechanism 330 includes a guiding clamp 331, and the guiding clamp 331 is suitable for clamping the limiting oxygen sensor base 910 so that the connector of the oxygen sensor base 910 and the connector of the wire harness 920 correspond.

[0083] In this embodiment, the guide clamp 331 clamps and positions the oxygen sensor base 910 so that the oxygen sensor base 910 corresponds to the wire harness 920 positioned in the lower wire harness positioning seat 310, ensuring that the wire harness 920 and the oxygen sensor base 910 are stably assembled under the pressure of the wire harness assembly pressure head 320.

[0084] In some embodiments, combining 2 and Figure 3 As shown, the guiding mechanism 330 also includes a guiding bracket 332 and a guiding movable module 333. The guiding bracket 332 is connected to the wire harness positioning seat 310. The first end of the guiding movable module 333 is slidably connected to the guiding bracket 332 along the third direction, and the second end of the guiding movable module 333 is connected to the guiding clamp 331.

[0085] In this embodiment, a sliding connection is set between the guiding movable module 333 and the guiding bracket 332, so that the guiding clamp 331 connected to the guiding movable module 333 can move synchronously with the downward pressure of the wiring harness assembly pressure head 320, that is, during the entire process of the oxygen sensor base 910 being pressed and moved by the wiring harness assembly pressure head 320, the guiding clamp 331 always clamps and positions the oxygen sensor base 910, ensuring that the connector of the oxygen sensor base 910 corresponds to the connector of the wiring harness 920, thereby improving the assembly yield rate.

[0086] In this embodiment, the "sliding connection" can be achieved through a slide module, a screw module, a hole-shaft structure, etc.

[0087] In some embodiments, combined Figure 3 As shown, the wiring harness positioning seat 310 is provided with a wiring harness positioning groove 311. The cross-sectional area of ​​the wiring harness positioning groove 311 gradually decreases along the groove opening toward the groove bottom. That is, as the wiring harness 920 is placed into the wiring harness positioning groove 311, the groove wall of the wiring harness positioning groove 311 gradually tightens, reducing the difficulty of the wiring harness 920 entering the wiring harness positioning groove 311 while ensuring the positioning accuracy of the wiring harness 920 by the wiring harness positioning groove 311.

[0088] On the other hand, an embodiment of the present invention further provides an oxygen sensor production line, comprising the oxygen sensor assembly equipment according to the above embodiment.

[0089] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the scope of the present invention.

Claims

1. An oxygen sensor assembly device for processing an oxygen sensor, wherein the oxygen sensor comprises an oxygen sensor base (910) and a wiring harness (920), wherein a connector of the wiring harness (920) is sealed and connected to the oxygen sensor base (910), and wherein: include: A wire harness assembly device (30) comprises a wire harness press-fitting module (300) and a test module (340), wherein the wire harness press-fitting module (300) comprises a wire harness positioning seat (310) and a wire harness assembly pressure head (320), wherein the wire harness positioning seat (310) is suitable for carrying the wire harness (920) and the oxygen sensor base (910), and the wire harness assembly pressure head (320) is suitable for pressing the oxygen sensor base (910) to assemble it with the connector of the wire harness (920); the test module (340) comprises a test connector (341) and a test placement seat (344), wherein the test placement seat (344) is located between the wire harness positioning seat (310) and the test connector (341), and wherein the test placement seat (344) is provided with a test placement slot (3441), wherein the test placement slot (3441) is suitable for placing a portion of the wire harness (920); and the test connector (341) is suitable for being electrically connected to the wire harness (920); a necking processing device (10) adapted to neck the outer surface of the oxygen sensor base (910) so as to seal the oxygen sensor base (910) and the wiring harness (920); A transport module is connected to the wire harness assembly device (30) and the necking processing device (10), and is suitable for transporting the oxygen sensor substrate (910).

2. The oxygen sensor assembly equipment according to claim 1, characterized in that The necking processing device (10) comprises a necking processing mechanism (100) and a harness pressing mechanism (200); the necking processing mechanism (100) comprises a positioning fixture (110), a necking driving assembly (130), and a plurality of necking ejectors (120) arranged around the positioning fixture (110); the positioning fixture (110) is suitable for placing the oxygen sensor substrate (910); and the necking ejectors (120) are capable of moving along the radial direction of the positioning fixture (110). The device is driven by the shrinking drive assembly (130) to move toward the positioning fixture (110) to press the outer surface of the oxygen sensor base (910) to achieve shrinking; the wiring harness pressing mechanism (200) includes a wiring harness pressing head (210), the wiring harness pressing head (210) is arranged above the axis of the positioning fixture (110), and the wiring harness pressing head (210) is provided with a wiring harness through hole (211), and the wiring harness through hole (211) is suitable for the wiring harness (920) to pass through.

3. The oxygen sensor assembly equipment according to claim 2, characterized in that: The wire harness pressing mechanism (200) further comprises a wire harness holding assembly (220), wherein the wire harness holding assembly (220) is located above the wire harness pressing mechanism (200) and is at a set distance from the wire harness pressing mechanism (200), and the wire harness holding assembly (220) is provided with a wiring groove (221), wherein the wiring groove (221) is suitable for the wire harness (920) to pass through.

4. The oxygen sensor assembly equipment according to claim 3, characterized in that The wire harness pressing mechanism (200) further comprises a support frame (230), a first movable module (240) and a first driving assembly (250), wherein the wire harness holding assembly (220) is fixed to the support frame (230), a first side of the first movable module (240) is slidably connected to the support frame (230) along the axial direction of the positioning fixture (110), a second side of the first movable module (240) is connected to the wire harness pressing head (210), and the first movable module (240) is adapted to move under the drive of the first driving assembly (250).

5. The oxygen sensor assembly equipment according to claim 4, characterized in that: The harness pressing head (210) comprises two clamping jaws (212) capable of relative movement along a first direction, at least one of the clamping jaws (212) being provided with a portion or all of the harness through-hole (211), and the two clamping jaws (212) cooperate to form a complete harness through-hole (211).

6. The oxygen sensor assembly equipment according to claim 5, characterized in that: The first moving module (240) comprises a moving base plate (241), a first driving portion (242) and a first guiding portion (243); the moving base plate (241) is slidably connected to the supporting frame (230); and the clamping claw (212) is adapted to move along the first direction under the drive of the first driving portion (242); The first guide portion (243) is provided between the clamping jaw (212) and the first driving portion (242), and the clamping jaw (212) is slidably connected to the movable substrate (241) via the first guide portion (243).

7. The oxygen sensor assembly equipment according to claim 5, characterized in that The harness pressing mechanism (200) further comprises a second movable module (260), and the support frame (230) is adapted to move along a second direction under the drive of the second movable module (260), wherein the second direction is arranged at an angle to the axial direction of the positioning fixture (110).

8. The oxygen sensor assembly equipment according to claim 4, characterized in that The wire harness holding assembly (220) comprises two relatively movable clamping arms (222) and a plurality of elastic members (223), wherein the clamping arms (222) are adapted to move toward each other under the drive of the elastic restoring force of the elastic members (223) to clamp the wire harness (920); Wherein, the first end of the elastic member (223) is connected to the support frame (230), and the second end of the elastic member (223) is connected to the clamping arm (222); or, Both ends of the elastic member (223) are respectively connected to different clamping arms (222).

9. The oxygen sensor assembly equipment according to claim 8, characterized in that: The two clamping arms (222) are rotatably connected to the support frame (230) and have the same rotation axis. The two ends of the elastic member (223) are respectively connected to the first ends of the clamping arms (222). The second ends of the two clamping arms (222) constitute the notches of the wiring groove (221).

10. An oxygen sensor production line, comprising the oxygen sensor assembly equipment according to any one of claims 1 to 9.

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