Oxygen Sensor Assembly Equipment and Oxygen Sensor Production Line

Abstract

The present invention discloses an oxygen sensor assembly device and an oxygen sensor production line. The oxygen sensor assembly device includes an oxygen sensor chip loading module, an oxygen sensor loading module, an oxygen sensor pressing module, and a conveying module; the fixture of the conveying module is adapted to carry an oxygen sensor base; the oxygen sensor chip loading module includes a guiding bracket and a positioning jaw connected to the guiding bracket and capable of opening and closing. The guiding bracket is provided with a guiding hole, and the guiding hole is adapted for the oxygen sensor chip to pass through; the positioning jaw is adapted to clamp and position the oxygen sensor base; along the vertical direction, the guiding hole, the positioning jaw, and the fixture are arranged in sequence; the conveying module is connected to the oxygen sensor loading module, the oxygen sensor chip loading module, and the oxygen sensor pressing module; by providing a guiding mechanism, the relative positions of the oxygen sensor chip and the oxygen sensor base are fixed by the cooperation of the positioning jaw and the guiding hole of the guiding mechanism, ensuring the assembly accuracy between the two.

Description

Technical Field

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

[0002] In the related art, during the manufacturing process of an oxygen sensor, it is necessary to assemble an oxygen sensor chip, an oxygen sensor component to be installed, and an oxygen sensor base. During the assembly process, the accuracy requirements for the movement and positioning of the oxygen sensor base and the oxygen sensor chip are extremely high, and there is a problem of difficult assembly. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. For this purpose, the present invention provides an oxygen sensor assembly device and an oxygen sensor production line, which can realize the automatic assembly of an oxygen sensor through an oxygen sensor chip feeding module, an oxygen sensor feeding module, an oxygen sensor pressing module, and a conveying module; and the overall of the oxygen sensor base and the oxygen sensor component to be installed is clamped and positioned by a positioning jaw, and a guiding hole relatively fixed to the positioning jaw is provided for guiding the oxygen sensor chip, so as to ensure the accurate positioning of the oxygen sensor chip, the oxygen sensor component to be installed, and the oxygen sensor base, and high-efficiency assembly.

[0004] On the one hand, an embodiment of the present invention provides an oxygen sensor assembly device for producing an oxygen sensor, the oxygen sensor including an oxygen sensor base, an oxygen sensor component to be installed, and an oxygen sensor chip, including:

[0005] A conveying module, including a plurality of jigs moving along the conveying direction, the jigs being adapted to carry the oxygen sensor base;

[0006] An oxygen sensor chip feeding module, including a guiding mechanism, the guiding mechanism being adapted to one of the plurality of jigs, the guiding mechanism including a guiding bracket and a positioning jaw connected to the guiding bracket and capable of opening and closing, the guiding bracket being provided with a guiding hole, the guiding hole being adapted for the oxygen sensor chip to pass through; the positioning jaw being adapted to clamp and position the oxygen sensor base; along the vertical direction, the guiding hole, the positioning jaw, and the jig are sequentially arranged;

[0007] An oxygen sensor feeding module, arranged upstream of the oxygen sensor chip feeding module, for feeding the oxygen sensor base and the oxygen sensor component to be installed;

[0008] An oxygen sensor pressing module, arranged downstream of the oxygen sensor chip feeding module;

[0009] The conveying module is connected to the oxygen sensor feeding module, the oxygen sensor chip feeding module, and the oxygen sensor pressing module.

[0010] According to some embodiments of the present invention, the oxygen sensor feeding module includes an oxygen sensor base feeding module and an oxygen sensor to-be-installed part feeding module. The oxygen sensor base feeding module is arranged upstream of the oxygen sensor chip feeding module; the oxygen sensor to-be-installed part feeding module is arranged upstream of the oxygen sensor base feeding module.

[0011] According to some embodiments of the present invention, the oxygen sensor feeding module further includes a second detection camera. The second detection camera is arranged downstream of the oxygen sensor to-be-installed part feeding module, and the detection field of view of the second detection camera faces the conveying module.

[0012] According to some embodiments of the present invention, the oxygen sensor press-fitting module includes a pre-pressing mechanism and a final pressing mechanism arranged in sequence along the conveying direction of the conveying module. The pre-pressing mechanism includes a retractable pre-pressing head, and the pre-pressing head is adapted to press against the oxygen sensor; the final pressing mechanism includes a retractable final pressing head, and the final pressing head is adapted to press against the oxygen sensor. Among them, the pressure of the final pressing mechanism is greater than the pressure of the pre-pressing mechanism.

[0013] According to some embodiments of the present invention, the conveying module further includes a conveying track and a dial rod mechanism. A plurality of the fixtures are slidably connected to the conveying track. The conveying track is formed by connecting multiple sections of conveying sub-tracks end to end in sequence. The dial rod mechanism includes a dial rod driving component and a plurality of dial rods corresponding to the fixtures one by one. The dial rods are driven by the dial rod driving component to push the fixtures along the conveying direction of the conveying track.

[0014] According to some embodiments of the present invention, the dial rod driving component includes a first dial rod driving member and a second dial rod driving member. The first dial rod driving member is adapted to drive the dial rod to move along the conveying direction, and the second dial rod driving member is adapted to drive the dial rod to move along a third direction. The third direction is arranged at an angle to the conveying direction.

[0015] According to some embodiments of the present invention, the conveying module further includes a plurality of positioning mechanisms. The positioning mechanisms are fixed on one side of the conveying track. The positioning mechanism includes a positioning ejector rod and an ejector rod driving member. A fixture positioning groove cooperating with the positioning ejector rod is arranged on the fixture. The positioning ejector rod is adapted to cooperate with the fixture positioning groove to be fixed under the drive of the ejector rod driving member.

[0016] According to some embodiments of the present invention, the conveying module further includes a return line and two lifting table mechanisms. The conveying track is stacked above the return line. Lifting table mechanisms are respectively arranged at the head end and the tail end of the conveying track. The conveying track is connected to the return line through the lifting table mechanisms;

[0017] The lifting table mechanism includes a lifting component and a translation component. The lifting component is used to drive the translation component to lift, and the translation component is used to translate the jig.

[0018] According to some embodiments of the present invention, the return line includes a plurality of conveyor belts and a plurality of position detection members. The conveyor belts are connected end to end, and the position detection members are provided at the head and tail ends of each conveyor belt. The position detection members are adapted to detect the jig.

[0019] On the other hand, an oxygen sensor production line according to an embodiment of the present invention includes the oxygen sensor assembly device as described above.

[0020] The embodiments of the present invention at least have the following beneficial effects: The oxygen sensor automatic assembly device is realized by connecting the conveying module to the oxygen sensor feeding module, the oxygen sensor chip feeding module, and the oxygen sensor pressing module, improving the production efficiency; and a guiding mechanism is arranged below the oxygen sensor chip feeding module. The relative positions of the oxygen sensor chip and the oxygen sensor base are fixed by the cooperation of the positioning jaws and the guiding holes of the guiding mechanism, ensuring the assembly accuracy between the two. There is no need to set a conveying module with high-precision movement to convey the jig or a handling mechanism to handle the oxygen sensor chip, nor is it necessary to set a high-precision fit between the oxygen sensor base and the jig or a high-precision clamping between the handling mechanism and the oxygen sensor chip, greatly reducing the manufacturing cost of the oxygen sensor assembly device and effectively improving the efficiency and yield of oxygen sensor assembly.

[0021] The additional aspects and advantages of the present invention will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present invention. Description of the Drawings

[0022] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0023] Figure 1 It is a top view of the oxygen sensor assembly device according to an embodiment of the present invention;

[0024] Figure 2 It is an axonometric view of the oxygen sensor assembly device according to an embodiment of the present invention;

[0025] Figure 3 It is an assembly schematic diagram of the conveying module and the guiding mechanism according to an embodiment of the present invention;

[0026] Figure 4 is Figure 3 an enlarged view of the partial A in

[0027] Figure 5 It is a top view of the jig and the oxygen sensor according to an embodiment of the present invention;

[0028] Figure 6 is Figure 5 a sectional view along the section line B - B in;

[0029] Figure 7 an assembly schematic diagram of the fixture and the chip height adjustment mechanism according to the embodiment of the present invention;

[0030] Figure 8 a structural schematic diagram of the conveying module according to the embodiment of the present invention.

[0031] Reference numerals:

[0032] 100, oxygen sensor chip loading module; 130, guiding mechanism; 131, guiding bracket; 1311, guiding hole; 1312, guiding moving module; 1313, guiding clamping arm; 132, positioning clamping jaw;

[0033] 200, oxygen sensor loading module; 210, oxygen sensor base loading module; 220, oxygen sensor to - be - installed part loading module; 230, second detection camera;

[0034] 300, oxygen sensor pressing module; 310, pre - pressing mechanism; 320, final - pressing mechanism;

[0035] 400, conveying module; 410, fixture; 411, fixture positioning groove; 412, loading base; 4121, loading through - hole; 4122, elastic limit pin; 4123, plug - in joint; 413, chip adjustment mechanism; 4131, chip adjustment piece; 41311, limit groove; 41312, first limit part; 41313, second limit part; 41314, plug - in slot; 41315, stop surface; 41316, guiding surface; 414, base positioning block; 4141, base positioning groove; 420, conveying track; 421, conveying sub - track; 430, lever mechanism; 431, lever driving assembly; 4311, first lever driving part; 4312, second lever driving part; 432, lever; 440, positioning mechanism; 441, positioning ejector rod; 442, ejector rod driving part; 450, return line; 451, conveyor belt; 452, position detection part; 460, lifting table mechanism; 462, lifting assembly; 463, translation assembly; 470, chip height adjustment mechanism; 471, adjusting rod; 4711, plug - in part; 472, adjusting driving assembly;

[0036] 910, oxygen sensor chip; 920, oxygen sensor base; 930, oxygen sensor to - be - installed part. Detailed implementation manners

[0037] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as limiting the present invention.

[0038] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0039] In the description of the present invention, the meaning of "several" is one or more, the meaning of "multiple" is two or more. Understandings such as greater than, less than, exceeding, etc. do not include the present number, and understandings such as "above", "below", "within", etc. include the present number. If there is a description of "first", "second", etc., it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0040] In the description of the present invention, unless otherwise clearly defined, terms such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0041] Please refer to Figures 1 to 4 and Figure 6As shown in the figure, on the one hand, an oxygen sensor assembly device provided by an embodiment of the present invention is used to produce an oxygen sensor. The oxygen sensor includes an oxygen sensor base 920, an oxygen sensor component to be installed 930, and an oxygen sensor chip 910. The device includes an oxygen sensor chip loading module 100, an oxygen sensor loading module 200, an oxygen sensor pressing module 300, and a conveying module 400. The conveying module 400 includes a plurality of fixtures 410 that move along the conveying direction. The fixtures 410 are adapted to carry the oxygen sensor base 920. The oxygen sensor chip loading module 100 includes an alignment mechanism 130. The alignment mechanism 130 is adapted to one of the plurality of fixtures 410. The alignment mechanism 130 includes an alignment bracket 131 and a positioning jaw 132 that is connected to the alignment bracket 131 and can open and close. The alignment bracket 131 is provided with an alignment hole 1311. The alignment hole 1311 is adapted for the oxygen sensor chip 910 to pass through. The positioning jaw 132 is adapted to clamp and position the oxygen sensor base 920. Along the vertical direction, the alignment hole 1311, the positioning jaw 132, and the fixture 410 are arranged in sequence. The oxygen sensor loading module 200 is arranged upstream of the oxygen sensor chip loading module 100 and is used to load the oxygen sensor base 920 and the oxygen sensor component to be installed 930. The oxygen sensor pressing module 300 is arranged downstream of the oxygen sensor chip loading module 100. The conveying module 400 is connected to the oxygen sensor loading module 200, the oxygen sensor chip loading module 100, and the oxygen sensor pressing module 300.

[0042] It should be noted that in the related art, during the manufacturing process of the oxygen sensor, it is necessary to assemble the oxygen sensor chip 910, the oxygen sensor component to be installed 930, and the oxygen sensor base 920. Usually, the oxygen sensor chip 910 is directly moved above the fixture 410 by a handling mechanism and assembled with the oxygen sensor base 920 carried by the fixture 410. In order to ensure the efficiency of the assembly process, this technical solution has high requirements for the movement accuracy of the handling mechanism and the fixture 410, as well as the clamping accuracy between the handling mechanism and the oxygen sensor chip 910 or the placement accuracy of the oxygen sensor base 920 on the fixture 410. There are problems such as high accuracy requirements, high costs, and low assembly efficiency.

[0043] According to the oxygen sensor assembly device of the embodiment of the present invention, first, the conveying module 400 carries the oxygen sensor base 920 and the oxygen sensor to-be-installed part 930 from the oxygen sensor feeding module 200, and conveys them to the oxygen sensor chip feeding module 100. The oxygen sensor chip feeding module 100 transports the oxygen sensor chip 910 above the conveying module 400. The positioning jaw 132 of the alignment mechanism 130 clamps the oxygen sensor base 920, so that the oxygen sensor base 920 and the oxygen sensor to-be-installed part 930 are adjusted as a whole to correspond to the alignment hole 1311. The oxygen sensor chip 910 is guided through the alignment hole 1311 and assembled with the oxygen sensor base 920 and the oxygen sensor to-be-installed part 930. Then the conveying module 400 transports the three as a whole to the oxygen sensor pressing module 300 for pressing;

[0044] The oxygen sensor assembly device according to the embodiment of the present invention is an automatic assembly device for oxygen sensors realized by connecting the oxygen sensor feeding module 200, the oxygen sensor chip feeding module 100, and the oxygen sensor pressing module 300 through the conveying module 400, which improves production efficiency; and an alignment mechanism 130 is arranged below the oxygen sensor chip feeding module 100. The positioning jaw 132 of the alignment mechanism 130 and the alignment hole 1311 cooperate to fix the relative positions of the oxygen sensor chip 910 and the oxygen sensor base 920, ensuring the assembly accuracy between the two. There is no need to set a conveying jig 410 with high-precision movement for the conveying module 400 to transport the oxygen sensor chip 910, nor is it necessary to set a high-precision fit between the oxygen sensor base 920 and the jig 410, and a high-precision clamping between the handling mechanism and the oxygen sensor chip 910, which greatly reduces the manufacturing cost of the oxygen sensor assembly device and effectively improves the efficiency and yield rate of oxygen sensor assembly.

[0045] In this embodiment, the "oxygen sensor to-be-installed part 930" includes a front-end bushing, a rear-end bushing, a talc powder preform, etc., which are existing products; it can be understood that based on different types of oxygen sensors, the types and quantities of the oxygen sensor to-be-installed part 930 can be adaptively adjusted.

[0046] In some embodiments, in combination with Figure 1 and Figure 2 As shown, the oxygen sensor feeding module 200 includes an oxygen sensor base feeding module 210 and an oxygen sensor to-be-installed part feeding module 220. The oxygen sensor base feeding module 210 is arranged upstream of the oxygen sensor chip feeding module 100; the oxygen sensor to-be-installed part feeding module 220 is arranged upstream of the oxygen sensor base feeding module 210.

[0047] In this embodiment, the fixture 410 first moves to the oxygen sensor to-be-installed part feeding module 220, and the operator manually feeds the oxygen sensor to-be-installed part 930. Then, the fixture 410 continues to move to the oxygen sensor base feeding module 210 to receive the oxygen sensor base 920. By separately and independently feeding the oxygen sensor to-be-installed part 930 and the oxygen sensor base 920, the feeding efficiency of the conveying module 400 is improved.

[0048] In this embodiment, the oxygen sensor base feeding module 210 includes a vibrating screen, a feeding slide rail, and a handling robot. The vibrating screen evenly screens the oxygen sensor bases 920 into the head end of the feeding slide rail, and the handling robot transports the oxygen sensor bases 920 flowing out from the tail end of the feeding slide rail to the conveying module 400.

[0049] In other embodiments, the oxygen sensor to-be-installed part feeding module 220 can also be set to an automatic feeding structure similar to the above-mentioned oxygen sensor base feeding module 210.

[0050] In some embodiments, as shown in Figure 1 and Figure 2 , the oxygen sensor feeding module 200 further includes a second detection camera 230. The second detection camera 230 is arranged downstream of the oxygen sensor to-be-installed part feeding module 220, and the detection field of view of the second detection camera 230 faces the conveying module 400.

[0051] In this embodiment, the second detection camera 230 is used to photograph and detect whether the position, quantity, appearance, etc. of the oxygen sensor to-be-installed parts 930 on the fixture 410 are qualified. The qualified oxygen sensor to-be-installed parts 930 will be continuously conveyed by the fixture 410 to the oxygen sensor base feeding module 210, and the unqualified oxygen sensor to-be-installed parts 930 need to be replaced with qualified products before continuing to be conveyed. By setting the second detection camera 230, it is ensured that the oxygen sensor to-be-installed parts 930 flowing to the oxygen sensor base feeding module 210 can be stably assembled with the oxygen sensor bases 920, improving the yield rate of the oxygen sensor.

[0052] In some embodiments, as shown in Figure 1 and Figure 2 , the oxygen sensor pressing module 300 includes a pre-pressing mechanism 310 and a final pressing mechanism 320 arranged in sequence along the conveying direction (illustrated X direction) of the conveying module 400. The pre-pressing mechanism 310 includes a retractable pre-pressing head suitable for pressing against the oxygen sensor; the final pressing mechanism 320 includes a retractable final pressing head suitable for pressing against the oxygen sensor. Among them, the pressure of the final pressing mechanism 320 is greater than the pressure of the pre-pressing mechanism 310.

[0053] In this embodiment, the pre-pressing mechanism 310 preliminarily presses and forms the oxygen sensor to-be-installed parts 930 (such as talcum powder prefabricated blocks, front end bushings, rear end bushings, etc.) and the oxygen sensor chip 910. Through pre-pressing, it ensures uniform material distribution, reduces internal stress, and avoids cracks or deformations during subsequent processing. Then it is transported to the final pressing mechanism 320 for further pressing, so that the oxygen sensor reaches the final designed shape and density. Through final pressing, it ensures that the microstructure of the internal components of the oxygen sensor meets the performance requirements of the oxygen sensor (such as airtightness, conductivity, etc.).

[0054] In some embodiments, as shown in combination with Figure 3 shown, the conveying module 400 further includes a conveying track 420 and a lever mechanism 430. A plurality of fixtures 410 are slidably connected to the conveying track 420. The conveying track 420 is formed by connecting multiple sections of conveying sub-tracks 421 end to end in sequence. The lever mechanism 430 includes a lever driving assembly 431 and a plurality of levers 432 corresponding to the fixtures 410 one by one. The lever 432 pushes the fixture 410 along the conveying direction of the conveying track 420 (the X direction shown in the figure) under the drive of the lever driving assembly 431.

[0055] In this embodiment, the fixture 410 is used to carry the oxygen sensor to-be-installed part 930, the oxygen sensor base 920, and the oxygen sensor chip 910. The driving member of the lever 432 of the lever mechanism 430 drives the lever 432 to move along the X direction shown in the figure, so as to drive the fixture 410 corresponding to the lever 432 to move to the next working station.

[0056] In this embodiment, the conveying track 420 is spliced by multiple sections of conveying sub-tracks 421. The conveying sub-tracks 421 can be in a form corresponding to each module separately (for example, corresponding to the oxygen sensor chip feeding module 100, the oxygen sensor feeding module 200, the oxygen sensor press-fitting module 300, etc. one by one), and of course, it can also be in a one-to-many form (for example, one conveying sub-track 421 can correspond to both the oxygen sensor chip feeding module 100 and the oxygen sensor press-fitting module 300 at the same time), so that different modules in the oxygen sensor assembly equipment can be disassembled, assembled, and connected separately, and re-arranged and combined to form a new process oxygen sensor assembly equipment; on this basis, in the form of driving the fixture 410 to move by the lever 432, it always ensures that the moving distance of each fixture 410 between working stations is the same, effectively avoiding the influence of the gap at the connection between the conveying sub-tracks 421 on the precise movement of the fixture 410.

[0057] In some embodiments, as shown in combination with Figure 4 shown, the lever driving assembly 431 includes a first lever driving member 4311 and a second lever driving member 4312. The first lever driving member 4311 is adapted to drive the lever 432 to move along the conveying direction, and the second lever driving member 4312 is adapted to drive the lever 432 to move along a third direction. The third direction is set at an angle to the conveying direction.

[0058] In this embodiment, after the lever 432 pushes the fixture 410 to move one station along the conveying direction under the drive of the first lever driving member 4311, the second lever driving member 4312 drives the lever 432 to move along the third direction to avoid the fixture 410, and then the first lever driving member 4311 moves the lever 432 along the conveying direction. Finally, the second lever driving member 4312 drives the lever 432 to move in the reverse direction of the third direction and insert between the fixtures 410 to prepare for the next push of the fixture 410.

[0059] By setting the second lever driving member 4312 to drive the lever 432 to avoid the fixture 410, the overall movement range of the lever mechanism 430 is the movement distance of the fixture 410 once, realizing the repeated use of the lever 432 in a small range and improving the equipment integration.

[0060] In this embodiment, the conveying direction is the X direction shown in the figure, and the third direction is the Y direction shown in the figure. In other embodiments, the angle between the third direction and the conveying direction can be adaptively adjusted to ensure that the lever 432 can avoid the fixture 410 after moving along the third direction.

[0061] In this embodiment, the first lever driving member 4311 and the second lever driving member 4312 are cylinders. Of course, they can also be slide table modules, lead screw modules, etc.

[0062] In some embodiments, in combination with Figure 3 and Figure 4 as shown, the conveying module 400 further includes a plurality of positioning mechanisms 440. The positioning mechanisms 440 are fixed on one side of the conveying track 420. The positioning mechanism 440 includes a positioning ejector rod 441 and an ejector rod driving member 442. A fixture positioning groove 411 cooperating with the positioning ejector rod 441 is provided on the fixture 410. The positioning ejector rod 441 is adapted to cooperate with the fixture positioning groove 411 and be fixed under the drive of the ejector rod driving member 442.

[0063] In this embodiment, after the lever 432 moves the fixture 410 to the corresponding station, the positioning ejector rod 441 of the positioning mechanism 440 extends under the drive of the ejector rod driving member 442 and inserts into the fixture positioning groove 411 to limit and fix the fixture 410 on the conveying track 420, ensuring that the fixture 410 stably supports the oxygen sensor during the feeding or assembly process of any module.

[0064] In this embodiment, the end of the positioning ejector rod 441 is a triangular head, and the fixture positioning groove 411 is a triangular groove. Of course, the specific shapes of the end of the positioning ejector rod 441 and the fixture positioning groove 411 can be adaptively adjusted.

[0065] In this embodiment, the ejector rod driving member 442 is a cylinder. In other embodiments, it can also be a slide table module, a lead screw module, etc.

[0066] In some embodiments, in combination with Figure 8 As shown, the conveying module 400 further includes a return line 450 and two lifting table mechanisms 460. The conveying track 420 is stacked above the return line 450. Lifting table mechanisms 460 are respectively arranged at the head end and the tail end of the conveying track 420. The conveying track 420 is connected to the return line 450 through the lifting table mechanisms 460. The lifting table mechanism 460 includes a lifting component 462 and a translation component 463. The lifting component 462 is used to drive the translation component 463 to lift and lower, and the translation component 463 is used to translate the jig 410.

[0067] In this embodiment, the jig 410 moves along the conveying direction (X direction) of the conveying track 420, and flows into the translation component 463 of the first lifting table mechanism 460 at the tail end of the conveying track 420. After the jig 410 is completely moved into the lifting table mechanism 460, the translation component 463 is driven by the lifting component 462 to move downward to connect with the head end of the return line 450. The translation component 463 drives the jig 410 to move into the return line 450 and move along the conveying direction (-X direction) of the return line 450 to the tail end, and flows into the translation component 463 of the second lifting table mechanism 460 at the tail end of the return line 450. After the jig 410 completely enters the lifting table mechanism 460, the translation component 463 is driven by the lifting component 462 to move downward to connect with the head end of the conveying track 420, realizing the cyclic movement of the jig 410 and completing the automated process of the oxygen sensor assembly equipment.

[0068] In this embodiment, the translation component 463 includes a horizontally arranged conveyor belt. In other embodiments, it can also be a sliding table module, a lead screw module, etc.

[0069] In this embodiment, the lifting component 462 includes a cylinder. In other embodiments, it can also be a sliding table module, a lead screw module, etc.

[0070] In some embodiments, in combination with Figure 8 As shown, the return line 450 includes a plurality of conveyor belts 451 and a plurality of position detection components 452. The conveyor belts 451 are connected end to end. Position detection components 452 are arranged at the head end and the tail end of each conveyor belt 451. The position detection components 452 are adapted to detect the jig 410.

[0071] In this embodiment, the return line 450 can adopt a conventional conveyor belt 451 to reduce costs, and detect the jig 410 by setting the position detection components 452 to obtain the movement interval time between adjacent jigs 410. Furthermore, by adjusting the conveying speed of the conveyor belt 451, the time for the jig 410 to move to the tail end of the return line 450 is changed to compensate for the interval time, so as to ensure that the jig 410 can achieve an accurate flow cycle.

[0072] In this embodiment, the position detector 452 can be an infrared detector, a detection camera, a sound wave detector, etc.

[0073] In some embodiments, in combination Figure 3 and Figure 4 As shown, the alignment bracket 131 includes an alignment moving module 1312 and two alignment clamping arms 1313. The two alignment clamping arms 1313 are adapted to independently move along the first direction (the Y direction shown in the figure) under the drive of the alignment moving module 1312. The two alignment clamping arms 1313 can be aligned and surrounded to form an alignment hole 1311. The two alignment clamping arms 1313 arranged in an aligned manner can adapt to oxygen sensor chips 910 of different sizes by adjusting the distance between them; moreover, both of the two alignment clamping arms 1313 can move independently along the first direction, that is, the alignment hole 1311 formed by the alignment of the two alignment clamping arms 1313 can also move along the first direction to adapt to the oxygen sensor chip 910 and different types of oxygen sensor bases 920 (the position of the oxygen sensor chip 910 is different relative to the oxygen sensor base 920 after assembly), thereby improving the adaptation effect of the alignment bracket 131.

[0074] In this embodiment, the number of the alignment clamping arms 1313 is two and they move along the first direction. In other embodiments, the number of the alignment clamping arms 1313 can also be more, and the moving direction of the alignment clamping arms 1313 can be the radial direction of the alignment hole 1311 to surround and form the alignment hole 1311.

[0075] In this embodiment, the alignment moving module 1312 is in the form of a sliding table cooperating with a sliding groove. In other embodiments, it can also be a cylinder, a lead screw module, etc.

[0076] In some embodiments, in combination Figure 5 and Figure 6 As shown, the fixture 410 includes a loading base 412 and a chip adjusting mechanism 413. The loading base 412 is provided with a loading through hole 4121. The chip adjusting mechanism 413 includes a chip adjusting piece 4131. The chip adjusting piece 4131 is arranged in the loading through hole 4121 and can perform telescopic movement along the axis of the loading through hole 4121.

[0077] In this embodiment, when the oxygen sensor chip 910 is not installed on the fixture 410, the fixture 410 of the conveying module 400 flows along the conveying direction, and gradually bears the oxygen sensor to-be-installed part 930 and the oxygen sensor base 920 during the flowing process. At this time, the chip adjusting piece 4131 of the chip adjusting mechanism 413 is in the extended state, and is used to occupy a part of the installation position required by the oxygen sensor chip 910, simplifying the feeding difficulty of the oxygen sensor to-be-installed part 930 and the oxygen sensor base 920 (the staff or the feeding mechanism can thread the oxygen sensor to-be-installed part 930 and the oxygen sensor base 920 through the chip adjusting piece 4131); moreover, after the oxygen sensor to-be-installed part 930 and the oxygen sensor base 920 are matched with the chip adjusting piece 4131, through the contraction of the chip adjusting piece 4131, the oxygen sensor chip 910 is gradually inserted into the oxygen sensor to-be-installed part 930 in the oxygen sensor base 920, greatly reducing the assembly difficulty of the oxygen sensor chip 910.

[0078] In this embodiment, the height of the chip adjusting piece 4131 can be controlled to adapt to oxygen sensor chips 910 of different specifications (different lengths).

[0079] In some embodiments, as shown in Figure 1 and Figure 7 the oxygen sensor assembly device further includes a chip height adjusting mechanism 470. The chip height adjusting mechanism 470 is adapted to one of a plurality of fixtures 410. The chip height adjusting mechanism 470 includes an adjusting rod 471 and an adjusting drive assembly 472. The adjusting rod 471 is adapted to be connected to the chip adjusting piece 4131 under the drive of the adjusting drive assembly 472, and drive the chip adjusting piece 4131 to perform telescopic movement.

[0080] In this embodiment, it can be understood that the oxygen sensor assembly device generally is provided with a pre-pressing mechanism. The pre-pressing mechanism preliminarily presses the oxygen sensor to-be-installed part 930 and the oxygen sensor chip 910 into a formed shape (such as a talcum powder prefabricated block, a front-end bushing, a rear-end bushing, etc.). Through pre-pressing, it is ensured that the material distribution is uniform, internal stress is reduced, and cracks or deformations are avoided during subsequent processing. During the pre-pressing process, it is necessary to insert the oxygen sensor chip 910 into the oxygen sensor to-be-installed part 930 to a certain depth. When the fixture 410 moves to below the pre-pressing mechanism, the adjusting rod 471 of the chip height adjusting mechanism 470 pulls down the chip adjusting piece 4131 to ensure that the pre-pressing head of the pre-pressing mechanism does not contact the oxygen sensor chip 910.

[0081] In this embodiment, the adjusting drive assembly 472 is formed by combining a plurality of linear movement modules to realize the movement of the adjusting rod 471 in three dimensions. The linear movement module can adopt a cylinder, a slide table module, a lead screw module, etc.

[0082] In some embodiments, as shown in Figure 5As shown, one of the chip adjusting piece 4131 and the adjusting rod 471 is provided with a limiting groove 41311, and the other is provided with a plugging part 4711 that cooperates with the limiting groove 41311.

[0083] In this embodiment, taking the chip adjusting piece 4131 being provided with the limiting groove 41311 and the adjusting rod 471 being provided with the plugging part 4711 as an example, the groove wall of the limiting groove 41311 is adapted to abut against the plugging part 4711. By changing the groove wall against which the plugging part 4711 abuts, the adjusting rod 471 is pulled down or the chip adjusting piece 4131 is moved up to realize the adjustment.

[0084] In other embodiments, the connection mechanism between the chip adjusting piece 4131 and the adjusting rod 471 can also be magnetic attraction connection, snap connection, etc.

[0085] In some embodiments, in combination with Figure 5 and Figure 6 As shown, the chip adjusting piece 4131 is provided with a first limiting part 41312 and a second limiting part 41313. The first limiting part 41312 and the second limiting part 41313 are arranged in sequence along the telescopic direction (the illustrated Z direction) of the chip adjusting piece 4131; the loading base 412 is provided with an elastic limiting pin 4122, and the elastic head of the elastic limiting pin 4122 is adapted to cooperate with the first limiting part 41312 or the second limiting part 41313 for limiting.

[0086] In this embodiment, when the chip adjusting piece 4131 moves down to the first limiting part 41312 to cooperate with the elastic limiting pin 4122, the chip adjusting piece 4131 cannot continue to move down, ensuring that the oxygen sensor chip 910 above the chip adjusting piece 4131 will not fall out of the jig 410; when the chip adjusting piece 4131 moves up to the second limiting part 41313 to cooperate with the elastic limiting pin 4122, the chip adjusting piece 4131 cannot continue to move up, ensuring that the chip adjusting piece 4131 will not fall out of the jig 410; and the positions of the first limiting part 41312 and the second limiting part 41313 can be set based on the distance that the oxygen sensor chip 910 needs to penetrate into the oxygen sensor base 920 and the oxygen sensor to-be-installed part 930. Compared with setting the distance electrically controlled by the adjusting drive assembly 472, the mechanical limit is more reliable.

[0087] In some embodiments, in combination with Figure 5 and Figure 6As shown, the material loading base 412 further includes a plug connector 4123 that can elastically expand and contract. The chip adjustment piece 4131 is provided with a plug slot 41314 corresponding to the plug connector 4123. The plug slot 41314 is located between the first limiting portion 41312 and the second limiting portion 41313. The plug slot 41314 is provided with a stop surface 41315 and a guiding surface 41316 arranged in sequence along the expansion and contraction direction of the chip adjustment piece 4131. The stop surface 41315 is perpendicular to the expansion and contraction direction, and the guiding surface 41316 is arranged at an angle with the expansion and contraction direction. The plug connector 4123 can move and expand and contract along the guiding surface 41316, and the stop surface 41315 can abut against the plug connector 4123 for limiting.

[0088] In this embodiment, when the chip adjustment piece 4131 moves upward, the guiding surface 41316 of the plug slot 41314 abuts against the plug connector 4123 and pushes the plug connector 4123 upward, causing the plug connector 4123 to have a tendency of elastic compression, so that the plug connector 4123 disengages from the plug slot 41314 until the chip adjustment piece 4131 moves to the second limiting portion 41313 and cooperates with the elastic limiting pin 4122 for limiting, and the chip adjustment piece 4131 stops moving. When the chip adjustment piece 4131 moves downward, the plug connector 4123 moves along the side wall of the chip adjustment piece 4131 until the plug connector 4123 is inserted into the plug slot 41314 along the guiding surface 41316 until the plug connector 4123 abuts against the stop surface 41315 and cannot move further, realizing the position fixation of the chip adjustment piece 4131. At the same time, the first limiting portion 41312 and the elastic limiting pin 4122 cooperate for limiting.

[0089] In this embodiment, by setting the form of cooperation between the plug slot 41314 and the plug connector 4123, the plug connector 4123 plays a role of limiting and supporting the chip adjustment piece 4131. When supporting the oxygen sensor chip 910 above the chip adjustment piece 4131, the plug connector 4123 and the plug slot 41314, the first limiting portion 41312 and the elastic limiting pin 4122 jointly realize the fixation of the chip adjustment piece 4131, improving the supporting effect on the oxygen sensor chip 910 while avoiding excessive force on the first limiting portion 41312 and the elastic limiting pin 4122 and damage.

[0090] Moreover, due to the angular setting of the stop surface 41315 and the guiding surface 41316, the plug connector 4123 slides along the guiding surface 41316 to achieve the plug-in fit, without the need for an additional device to drive the movement of the plug connector 4123, reducing the volume of the jig 410 and lowering the use cost.

[0091] In this embodiment, the upward movement of the chip adjustment piece 4131 can be realized manually by the staff or by arranging a jacking mechanism below the chip adjustment piece 4131; the downward movement of the chip adjustment piece 4131 can be realized by the aforementioned chip height adjustment mechanism 470.

[0092] In some embodiments, in combination with Figure 7 As shown, the jig 410 further includes a base positioning block 414. The base positioning block 414 is fixed on one side of the axis of the loading base 412. The base positioning block 414 is provided with a base positioning groove 4141. The opening of the base positioning groove 4141 faces the axis of the loading base 412. The base positioning groove 4141 is adapted to cooperate with the oxygen sensor base 920 for positioning.

[0093] In this embodiment, when the loading base 412 receives the oxygen sensor base 920, the surface of the outer shell part of the oxygen sensor base 920 cooperates with the base positioning groove 4141 and moves along the extending direction of the base positioning groove 4141. The base positioning groove 4141 effectively restricts the rotation of the oxygen sensor base 920 during loading or movement, so as to ensure the accurate positioning of the oxygen sensor base 920 and guarantee the accuracy and efficiency of the downstream processes (such as the assembly and pre-pressing of the oxygen sensor chip 910).

[0094] In this embodiment, there is one base positioning block 414, and the base positioning groove 4141 has a triangular cross-section. Of course, the number of the base positioning blocks 414 and the shape of the base positioning groove 4141 can be adaptively adjusted based on the shape of the oxygen sensor base 920.

[0095] On the other hand, the embodiment of the present invention further provides an oxygen sensor production line, including the oxygen sensor assembly device as described in the above embodiment.

[0096] The above has described the embodiments of the present invention in detail with reference to the drawings. However, the present invention is not limited to the above embodiments. Within the knowledge scope of those of ordinary skill in the art to which the present invention pertains, various changes can be made without departing from the purpose of the present invention.

Claims

1. An oxygen sensor assembly device for producing an oxygen sensor, the oxygen sensor comprising an oxygen sensor base (920), an oxygen sensor to be mounted (930) and an oxygen sensor chip (910), characterized in that: include: A conveying module (400) comprising a plurality of jigs (410) that move along a conveying direction, wherein the jigs (410) are suitable for carrying the oxygen sensor base (920); An oxygen sensor chip loading module (100) comprises a guiding mechanism (130), wherein the guiding mechanism (130) is adapted to be matched to one of the plurality of jigs (410), wherein the guiding mechanism (130) comprises a guiding support (131) and a positioning clamp (132) connected to the guiding support (131) and capable of opening and closing, wherein the guiding support (131) is provided with a guiding hole (1311), wherein the guiding hole (1311) is suitable for the oxygen sensor chip (910) to pass through; and the positioning clamp (132) is suitable for clamping and positioning the oxygen sensor base (920), so that the oxygen sensor base (920) and the oxygen sensor to-be-mounted component (930) are adjusted as a whole to correspond to the guiding hole (1311); The guide hole (1311), the positioning clamp (132) and the fixture (410) are sequentially arranged along the vertical direction; An oxygen sensor loading module (200) is arranged upstream of the oxygen sensor chip loading module (100) and is used to load the oxygen sensor base (920) and the oxygen sensor to-be-installed component (930); An oxygen sensor press-fitting module (300) is arranged downstream of the oxygen sensor chip loading module (100); The conveying module (400) is connected to the oxygen sensor loading module (200), the oxygen sensor chip loading module (100) and the oxygen sensor pressing module (300).

2. The oxygen sensor assembly equipment according to claim 1, characterized in that: The oxygen sensor loading module (200) comprises an oxygen sensor base loading module (210) and an oxygen sensor to-be-mounted component loading module (220); the oxygen sensor base loading module (210) is arranged upstream of the oxygen sensor chip loading module (100); and the oxygen sensor to-be-mounted component loading module (220) is arranged upstream of the oxygen sensor base loading module (210).

3. The oxygen sensor assembly equipment according to claim 2, characterized in that: The oxygen sensor loading module (200) further comprises a second detection camera (230), the second detection camera (230) being arranged downstream of the oxygen sensor to-be-installed component loading module (220), the detection field of view of the second detection camera (230) being oriented toward the conveying module (400).

4. The oxygen sensor assembly equipment according to claim 1, characterized in that: The oxygen sensor press-fitting module (300) comprises a pre-pressing mechanism (310) and a final pressure mechanism (320) which are sequentially arranged along the conveying direction of the conveying module (400); the pre-pressing mechanism (310) comprises a retractable pre-pressing head, which is suitable for pressing the oxygen sensor; the final pressure mechanism (320) comprises a retractable final pressure head, which is suitable for pressing the oxygen sensor; wherein the pressure of the final pressure mechanism (320) is greater than the pressure of the pre-pressing mechanism (310).

5. The oxygen sensor assembly equipment according to any one of claims 1 to 4, characterized in that: The conveying module (400) further comprises a conveying track (420) and a lever mechanism (430); a plurality of the jigs (410) are slidably connected to the conveying track (420); the conveying track (420) is composed of a plurality of conveying sub-tracks (421) connected end to end in sequence; the lever mechanism (430) comprises a lever driving assembly (431) and a plurality of levers (432) corresponding one to the jigs (410); the levers (432) are driven by the lever driving assembly (431) to push the jigs (410) along the conveying direction of the conveying track (420).

6. The oxygen sensor assembly equipment according to claim 5, characterized in that: The lever driving assembly (431) comprises a first lever driving member (4311) and a second lever driving member (4312), wherein the first lever driving member (4311) is suitable for driving the lever (432) to move along the conveying direction, and the second lever driving member (4312) is suitable for driving the lever (432) to move along a third direction, wherein the third direction is arranged at an angle to the conveying direction.

7. The oxygen sensor assembly equipment according to claim 5, characterized in that: The conveying module (400) further comprises a plurality of positioning mechanisms (440), wherein the positioning mechanisms (440) are fixed to one side of the conveying track (420), the positioning mechanisms (440) comprising a positioning push rod (441) and a push rod driving member (442), and a jig positioning groove (411) cooperating with the positioning push rod (441) is provided on the jig (410), and the positioning push rod (441) is suitable for being matched and fixed with the jig positioning groove (411) under the drive of the push rod driving member (442).

8. The oxygen sensor assembly equipment according to claim 5, characterized in that: The conveying module (400) further comprises a return line (450) and two lifting platform mechanisms (460); the conveying track (420) is stacked above the return line (450); the head end and the tail end of the conveying track (420) are respectively provided with lifting platform mechanisms (460); the conveying track (420) and the return line (450) are connected via the lifting platform mechanisms (460); The lifting platform mechanism (460) comprises a lifting component (462) and a translation component (463); the lifting component (462) is used to drive the translation component (463) to lift and lower; and the translation component (463) is used to translate the fixture (410).

9. The oxygen sensor assembly equipment according to claim 8, characterized in that: The reflow line (450) comprises a plurality of conveyor belts (451) and a plurality of position detection components (452); the conveyor belts (451) are connected end to end; the position detection components (452) are provided at the beginning and the end of each conveyor belt (451); the position detection components (452) are suitable for detecting the jig (410).

10. An oxygen sensor production line, characterized in that: The invention comprises an oxygen sensor assembly device as claimed in any one of claims 1 to 9.

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