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 an oxygen sensor chip feeding module, an oxygen sensor feeding module, an oxygen sensor press-fitting module and a conveying module. A jig of the conveying module is suitable for bearing an oxygen sensor base; the oxygen sensor chip feeding module comprises a guide support and a positioning clamping jaw which is connected to the guide support and can be opened and closed, the guide support is provided with a guide hole, and an oxygen sensor chip can penetrate through the guide hole; the positioning clamping jaw is suitable for clamping and positioning an oxygen sensor base; a guide hole, a positioning clamping jaw and a jig are sequentially arranged in the vertical direction. The conveying module is connected to the oxygen sensor feeding module, the oxygen sensor chip feeding module and the oxygen sensor press-fitting module. The guide mechanism is arranged, and the positioning clamping jaw of the guide mechanism is matched with the guide hole, so that the relative positions of the oxygen sensor chip and the oxygen sensor base are fixed, and the assembly precision of the oxygen sensor chip and the oxygen sensor base is ensured.

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 manufacturing process of the oxygen sensor, the oxygen sensor chip, the oxygen sensor mounting part and the oxygen sensor base need to be assembled. During the assembly process, the moving positioning accuracy of the oxygen sensor base and the oxygen sensor chip is required to be extremely high, which leads to the problem of assembly difficulty. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an oxygen sensor assembly equipment and an oxygen sensor production line, which can realize the automatic assembly of oxygen sensors through an oxygen sensor chip loading module, an oxygen sensor loading module, an oxygen sensor pressing module and a conveying module; and through the positioning claws, the oxygen sensor base and the oxygen sensor to be installed are clamped and positioned as a whole, and a guide hole fixed relatively to the positioning claws is provided for guiding the oxygen sensor chip, so as to ensure accurate positioning of the oxygen sensor chip, the oxygen sensor to be installed and the oxygen sensor base, and efficient assembly.

[0004] On the one hand, an embodiment of the present invention provides an oxygen sensor assembly device for producing an oxygen sensor, wherein the oxygen sensor includes an oxygen sensor base, an oxygen sensor to be mounted, and an oxygen sensor chip, including: A conveying module, comprising a plurality of jigs moving along a conveying direction, wherein the jigs are suitable for carrying the oxygen sensor base; The oxygen sensor chip loading module comprises a guiding mechanism, the guiding mechanism is adapted to one of the plurality of jigs, the guiding mechanism comprises 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, the guiding hole is suitable for the oxygen sensor chip to pass through; the positioning jaw is suitable for clamping and positioning the oxygen sensor base; the guiding hole, the positioning jaw and the jig are sequentially arranged along the vertical direction; An oxygen sensor loading module, disposed upstream of the oxygen sensor chip loading module, for loading the oxygen sensor base and the oxygen sensor to-be-installed component; An oxygen sensor press-fitting module is provided downstream of the oxygen sensor chip loading module; The conveying module is connected to the oxygen sensor loading module, the oxygen sensor chip loading module and the oxygen sensor pressing module.

[0005] According to some embodiments of the present invention, the oxygen sensor loading module includes an oxygen sensor base loading module and an oxygen sensor to-be-installed parts loading module, the oxygen sensor base loading module is arranged upstream of the oxygen sensor chip loading module; the oxygen sensor to-be-installed parts loading module is arranged upstream of the oxygen sensor base loading module.

[0006] According to some embodiments of the present invention, the oxygen sensor loading module further includes a second detection camera, which is disposed downstream of the oxygen sensor to-be-installed component loading module, and a detection field of the second detection camera faces the conveying module.

[0007] According to some embodiments of the present invention, the oxygen sensor press-fitting module includes a pre-pressing mechanism and a final pressure mechanism which are sequentially arranged along the conveying direction of the conveying module, the pre-pressing mechanism includes a retractable pre-pressing head which is suitable for pressing the oxygen sensor; the final pressure mechanism includes a retractable final pressure head which is suitable for pressing the oxygen sensor, wherein the pressure of the final pressure mechanism is greater than the pressure of the pre-pressing mechanism.

[0008] According to some embodiments of the present invention, the conveying module also includes a conveying track and a lever mechanism, a plurality of the jigs are slidably connected to the conveying track, the conveying track is composed of multiple sections of conveying sub-tracks connected end to end, the lever mechanism includes a lever driving assembly and a plurality of levers corresponding to the jigs one by one, and the levers are driven by the lever driving assembly to push the jigs along the conveying direction of the conveying track.

[0009] According to some embodiments of the present invention, the lever drive assembly includes a first lever drive member and a second lever drive member, the first lever drive member is suitable for driving the lever to move along the conveying direction, and the second lever drive member is suitable for driving the lever to move along a third direction, and the third direction is set at an angle to the conveying direction.

[0010] According to some embodiments of the present invention, the conveying module also includes a plurality of positioning mechanisms, wherein the positioning mechanisms are fixed to one side of the conveying track, the positioning mechanisms include a positioning push rod and a push rod driving component, and a jig positioning groove cooperating with the positioning push rod is provided on the jig, and the positioning push rod is suitable for being cooperated and fixed with the jig positioning groove under the drive of the push rod driving component.

[0011] According to some embodiments of the present invention, the conveying module further includes a return line and two lifting platform mechanisms, the conveying track is stacked above the return line, the head end and the tail end of the conveying track are respectively provided with lifting platform mechanisms, and the conveying track and the return line are connected through the lifting platform mechanisms; The lifting platform mechanism includes a lifting component and a translation component. The lifting component is used to drive the translation component to lift and lower, and the translation component is used to translate the fixture.

[0012] According to some embodiments of the present invention, the reflow line includes multiple conveyor belts and multiple position detection components, the conveyor belts are connected end to end, and the position detection components are provided at the beginning and end of each conveyor belt, and the position detection components are suitable for detecting the fixture.

[0013] On the other hand, an embodiment of the present invention further provides an oxygen sensor production line, comprising the oxygen sensor assembly equipment as described above.

[0014] The embodiments of the present invention have at least the following beneficial effects: by connecting the conveying module to the oxygen sensor feeding module, the oxygen sensor chip feeding module and the oxygen sensor pressing module, an automated assembly device for the oxygen sensor is realized, thereby improving production efficiency; and a guiding mechanism is provided below the oxygen sensor chip feeding module, and the positioning claws and the guiding holes of the guiding mechanism cooperate to fix the relative positions of the oxygen sensor chip and the oxygen sensor base, thereby ensuring the assembly accuracy between the two. There is no need to provide a high-precision movable conveying module conveying jig or a conveying mechanism to convey the oxygen sensor chip, and there is no need to provide a high-precision cooperation between the oxygen sensor base and the jig, or a high-precision clamping between the conveying mechanism and the oxygen sensor chip, thereby greatly reducing the manufacturing cost of the oxygen sensor assembly device and effectively improving the efficiency and yield rate of the oxygen sensor assembly.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which: Figure 1 A top view of an oxygen sensor assembly device according to an embodiment of the present invention; Figure 2 It is an isometric view of an oxygen sensor assembly device according to an embodiment of the present invention; Figure 3 It is a schematic diagram of the assembly of the conveying module and the guiding mechanism according to an embodiment of the present invention; Figure 4 for Figure 3 A magnified view of the part A in the middle; Figure 5 A top view of a fixture and an oxygen sensor according to an embodiment of the present invention; Figure 6 for Figure 5 A cross-sectional view along section line BB; Figure 7It is a schematic diagram of assembling a jig and a chip height adjustment mechanism according to an embodiment of the present invention; Figure 8 Schematic diagram of the structure of the conveying module according to an embodiment of the present invention.

[0017] Reference numerals: 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 claw; 200, oxygen sensor feeding module; 210, oxygen sensor base feeding module; 220, oxygen sensor to-be-installed parts feeding module; 230, second detection camera; 300, oxygen sensor press-fitting module; 310, pre-pressing mechanism; 320, final pressing mechanism; 400, conveying module; 410, fixture; 411, fixture positioning groove; 412, loading base; 4121, loading through hole; 4122, elastic limiting pin; 4123, plug connector; 413, chip adjustment mechanism; 4131, chip adjustment sheet; 41311, limiting groove; 41312, first limiting portion; 41313, second limiting portion; 41314, plug-in groove; 41315, stop surface; 41316, guide surface; 414, base positioning block; 4141, base positioning groove; 420, conveying track; 42 1. Conveying sub-track; 430. lever mechanism; 431. lever driving assembly; 4311. first lever driving member; 4312. second lever driving member; 432. lever; 440. positioning mechanism; 441. positioning ejector; 442. ejector driving member; 450. return line; 451. conveyor belt; 452. position detecting member; 460. lifting platform mechanism; 462. lifting assembly; 463. translation assembly; 470. chip height adjusting mechanism; 471. adjusting rod; 4711. plug-in unit; 472. adjusting driving assembly; 910. Oxygen sensor chip; 920. Oxygen sensor base; 930. Oxygen sensor mounting parts. DETAILED DESCRIPTION

[0018] Embodiments of the present invention are described in detail below, examples of which 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 only used to explain the present invention, and cannot be understood as limiting the present invention.

[0019] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and 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, and therefore should not be understood as a limitation on the present invention.

[0020] In the description of the present invention, "several" means one or more, "multiple" means more than two, greater than, less than, and exceeding are understood as not including the number itself, and "above", "below", and "within" are understood as including the number itself. If there is a description of "first", "second", etc., it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0021] 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 in combination with the specific content of the technical solution.

[0022] Please refer to Figures 1 to 4 as well as Figure 6 As shown, on the one hand, an embodiment of the present invention provides an oxygen sensor assembly device for producing an oxygen sensor, wherein the oxygen sensor includes an oxygen sensor base 920, an oxygen sensor to-be-mounted part 930 and an oxygen sensor chip 910, and 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 jigs 410 moving along a conveying direction, and the jigs 410 are suitable for carrying the oxygen sensor base 920; the oxygen sensor chip loading module 100 includes a guiding mechanism 130, the guiding mechanism 130 is adapted to one of the plurality of jigs 410, and the guiding mechanism 130 includes a guiding bracket 131 and a guiding bracket 131 connected to the guiding bracket 131 and capable of The positioning jaw 132 can be opened and closed, and the guide bracket 131 is provided with a guide hole 1311, and the guide hole 1311 is suitable for the oxygen sensor chip 910 to pass through; the positioning jaw 132 is suitable for clamping and positioning the oxygen sensor base 920; along the vertical direction, the guide hole 1311, the positioning jaw 132 and the fixture 410 are sequentially arranged; the oxygen sensor loading module 200 is arranged upstream of the oxygen sensor chip loading module 100, and is used for loading the oxygen sensor base 920 and the oxygen sensor to be installed part 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.

[0023] It should be noted that in the related art, during the manufacturing process of the oxygen sensor, the oxygen sensor chip 910, the oxygen sensor mounting part 930 and the oxygen sensor base 920 need to be assembled. Usually, the oxygen sensor chip 910 is directly moved to the top of the jig 410 by a conveying mechanism and assembled with the oxygen sensor base 920 carried by the jig 410. In order to ensure the efficiency of the assembly process, this technical solution has high requirements on the movement accuracy of the conveying mechanism and the jig 410, as well as the clamping accuracy of the conveying mechanism and the oxygen sensor chip 910 or the placement accuracy of the oxygen sensor base 920 on the jig 410. There are problems of high precision requirements, high cost and low assembly efficiency.

[0024] According to the oxygen sensor assembly equipment 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 loading module 200, and conveys them to the oxygen sensor chip loading module 100. The oxygen sensor chip loading module 100 transports the oxygen sensor chip 910 to the top of the conveying module 400, and the positioning clamping claw 132 of the guiding 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 guiding hole 1311. The oxygen sensor chip 910 is guided by the guiding hole 1311 and assembled with the oxygen sensor base 920 and the oxygen sensor to-be-installed part 930. The conveying module 400 then conveys the three as a whole to the oxygen sensor press-fitting module 300 for press-fitting. According to the oxygen sensor assembly equipment of the embodiment of the present invention, 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 to realize the automated assembly equipment of the oxygen sensor, thereby improving the production efficiency; and a guiding mechanism 130 is arranged below the oxygen sensor chip loading module 100, and the positioning clamping claws 132 and the guiding holes 1311 of the guiding mechanism 130 cooperate to fix the relative positions of the oxygen sensor chip 910 and the oxygen sensor base 920 to ensure the assembly accuracy therebetween, and there is no need to arrange a high-precision moving conveying module 400 to convey the jig 410 or a transport mechanism to transport the oxygen sensor chip 910, nor is there any need to arrange high-precision cooperation between the oxygen sensor base 920 and the jig 410, or high-precision clamping between the transport mechanism and the oxygen sensor chip 910, thereby greatly reducing the manufacturing cost of the oxygen sensor assembly equipment and effectively improving the efficiency and yield rate of oxygen sensor assembly.

[0025] In this embodiment, the "oxygen sensor parts to be installed 930" include a front end bushing, a rear end bushing, a talcum powder prefabricated block, etc., which are existing products; it can be understood that based on different types of oxygen sensors, the type and quantity of the oxygen sensor parts to be installed 930 can be adaptively adjusted.

[0026] In some embodiments, in combination Figure 1and Figure 2 As shown, the oxygen sensor loading module 200 includes an oxygen sensor base loading module 210 and an oxygen sensor to-be-installed component loading module 220. The oxygen sensor base loading module 210 is arranged upstream of the oxygen sensor chip loading module 100; the oxygen sensor to-be-installed component loading module 220 is arranged upstream of the oxygen sensor base loading module 210.

[0027] In this embodiment, the jig 410 first moves to the oxygen sensor installation component loading module 220, and manually loads the oxygen sensor installation component 930, and then the jig 410 continues to move to the oxygen sensor base loading module 210 to receive the oxygen sensor base 920. By loading the oxygen sensor installation component 930 and the oxygen sensor base 920 separately and independently, the loading efficiency of the conveying module 400 is improved.

[0028] In this embodiment, the oxygen sensor base loading module 210 includes a vibrating screen, a loading slide rail and a transport robot. The vibrating screen evenly screens the oxygen sensor base 920 into the head end of the loading slide rail, and the transport robot transports the oxygen sensor base 920 flowing out of the tail end of the loading slide rail to the conveying module 400.

[0029] In other embodiments, the oxygen sensor installation component loading module 220 may also be configured as an automatic loading structure similar to the above-mentioned oxygen sensor base loading module 210 .

[0030] In some embodiments, in combination Figure 1 and Figure 2 As shown, the oxygen sensor loading module 200 further includes a second detection camera 230 , which is disposed downstream of the oxygen sensor to-be-installed component loading module 220 , and the detection field of the second detection camera 230 faces the conveying module 400 .

[0031] 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 jig 410 are qualified. Qualified oxygen sensor to-be-installed parts 930 will be further transported by the jig 410 to the oxygen sensor base loading module 210, and unqualified oxygen sensor to-be-installed parts 930 must be replaced with qualified products before they can be further transported. 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 loading module 210 can be stably assembled with the oxygen sensor base 920, thereby improving the yield rate of the oxygen sensor.

[0032] In some embodiments, in combination Figure 1 and Figure 2As shown, the oxygen sensor press-fitting module 300 includes a pre-pressing mechanism 310 and a final pressure mechanism 320 which are sequentially arranged along the conveying direction (X direction in the figure) of the conveying module 400. The pre-pressing mechanism 310 includes a retractable pre-pressing head which is suitable for pressing the oxygen sensor; the final pressure mechanism 320 includes 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.

[0033] In this embodiment, the pre-pressing mechanism 310 is used to preliminarily press and form the oxygen sensor parts to be installed 930 (such as talcum powder prefabricated blocks, front end bushings, rear end bushings, etc.) and the oxygen sensor chip 910. Through pre-pressing, it is ensured that the material is evenly distributed, the internal stress is reduced, and cracks or deformation in subsequent processing are avoided; 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 is ensured that the microstructure of the internal components of the oxygen sensor meets the performance requirements of the oxygen sensor (such as air tightness, conductivity, etc.).

[0034] In some embodiments, in combination Figure 3 As shown, the conveying module 400 also includes a conveying track 420 and a lever mechanism 430. A plurality of 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. The lever mechanism 430 includes a lever driving assembly 431 and a plurality of levers 432 corresponding to the jigs 410 one by one. The lever 432 is driven by the lever driving assembly 431 to push the jigs 410 along the conveying direction (X direction in the figure) of the conveying track 420.

[0035] In this embodiment, the fixture 410 is used to carry the oxygen sensor to-be-installed component 930, the oxygen sensor base 920 and the oxygen sensor chip 910. The lever 432 of the lever mechanism 430 drives the lever 432 to move along the X direction shown in the figure to drive the fixture 410 corresponding to the lever 432 to move to the next workstation.

[0036] 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 individually (for example, one-to-one corresponding to the oxygen sensor chip loading module 100, the oxygen sensor loading module 200, the oxygen sensor pressing module 300, etc.), of course, it can also be a one-to-many form (for example, one conveying sub-track 421 can correspond to the oxygen sensor chip loading module 100 and the oxygen sensor pressing module 300 at the same time), so that different modules in the oxygen sensor assembly equipment can be disassembled and connected separately, and rearranged and combined to form an oxygen sensor assembly equipment of a new process; on this basis, the jig 410 is driven to move by the lever 432, so that the moving distance of each jig 410 between the workstations is always the same, and the influence of the gap at the connection between the conveying sub-tracks 421 on the precise movement of the jig 410 is effectively avoided.

[0037] In some embodiments, in combination Figure 4 As 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 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 the third direction, which is set at an angle to the conveying direction.

[0038] In this embodiment, after the lever 432 is driven by the first lever driving member 4311 to push the jig 410 to move one station along the conveying direction, the lever 432 is driven by the second lever driving member 4312 to move along the third direction to avoid the jig 410, and then the lever 432 is moved along the conveying direction by the first lever driving member 4311, and finally the lever 432 is driven by the second lever driving member 4312 to move in the opposite direction of the third direction to be inserted between the jigs 410, preparing for the next push against the jig 410.

[0039] By setting the second lever driving member 4312 to drive the lever 432 to avoid the fixture 410, the overall moving range of the lever mechanism 430 is the moving distance of the fixture 410 once, and the lever 432 is reused in a small range to improve the integration of the equipment.

[0040] 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 achieve that the lever 432 can avoid the fixture 410 after moving along the third direction.

[0041] 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 modules, screw modules, etc.

[0042] In some embodiments, in combination Figure 3 and Figure 4 As shown, the conveying module 400 also includes a plurality of positioning mechanisms 440, which are fixed to one side of the conveying track 420. The positioning mechanism 440 includes a positioning push rod 441 and a push rod driving member 442. A jig positioning groove 411 cooperating with the positioning push rod 441 is provided on the jig 410. 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.

[0043] In this embodiment, after the lever 432 moves the jig 410 to the corresponding workstation, the positioning push rod 441 of the positioning mechanism 440 is extended under the drive of the push rod driving member 442 and inserted into the jig positioning groove 411 to limit and fix the jig 410 on the conveying track 420, ensuring that the jig 410 stably supports the oxygen sensor during the loading or assembly process of any module.

[0044] In this embodiment, the end of the positioning push 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 push rod 441 and the fixture positioning groove 411 can be adaptively adjusted.

[0045] In this embodiment, the push rod driving component 442 is a cylinder. In other embodiments, it can also be a slide module, a screw module, etc.

[0046] In some embodiments, in combination Figure 8 As shown, the conveying module 400 also includes 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 through the lifting platform mechanism 460; the lifting platform 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 rise and fall, and the translation component 463 is used to translate the fixture 410.

[0047] 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 platform mechanism 460 at the tail end of the conveying track 420. After the jig 410 is completely moved into the lifting platform mechanism 460, the translation component 463 is driven by the lifting component 462 to move down 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 moves 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 platform mechanism 460 at the tail end of the return line 450. After the jig 410 completely enters the lifting platform mechanism 460, the translation component 463 is driven by the lifting component 462 to move down to connect with the head end of the conveying track 420, thereby realizing the circular movement of the jig 410 and completing the automation process of the oxygen sensor assembly equipment.

[0048] In this embodiment, the translation assembly 463 includes a horizontally arranged conveyor belt. In other embodiments, it may also be a slide module, a screw module, etc.

[0049] In this embodiment, the lifting assembly 462 includes a cylinder. In other embodiments, it can also be a slide module, a screw module, etc.

[0050] In some embodiments, in combination Figure 8 As shown, the reflow 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. A position detection component 452 is provided at the head and tail ends of each conveyor belt 451 . The position detection component 452 is suitable for detecting the fixture 410 .

[0051] In this embodiment, the return line 450 can use a conventional conveyor belt 451 to reduce costs, and by setting a position detection component 452 to detect the fixture 410, so as to obtain the movement interval time between adjacent fixtures 410, and then by adjusting the conveying speed of the conveyor belt 451, the time for the fixture 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 fixture 410 can achieve accurate flow circulation.

[0052] In this embodiment, the position detection component 452 can be an infrared detector, a detection camera, an acoustic wave detector, etc.

[0053] In some embodiments, in combination Figure 3 and Figure 4 As shown, the guide bracket 131 includes a guide moving module 1312 and two guide clamping arms 1313. The two guide clamping arms 1313 are suitable for independently moving along a first direction (in the Y direction shown in the figure) under the drive of the guide moving module 1312. The two guide clamping arms 1313 can be aligned and surrounded to form a guide hole 1311. The two aligned guide clamping arms 1313 can adapt to oxygen sensor chips 910 of different sizes by adjusting the distance between them; and the two guide clamping arms 1313 can move independently along the first direction, that is, the guide hole 1311 formed by the two guide 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 relative to the oxygen sensor base 920 after assembly is different), thereby improving the adaptation effect of the guide bracket 131.

[0054] In this embodiment, there are two guiding arms 1313 and they move along the first direction. In other embodiments, there may be more guiding arms 1313 and the moving direction of the guiding arms 1313 may be radial to the guiding hole 1311 to enclose the guiding hole 1311.

[0055] In this embodiment, the guiding moving module 1312 is in the form of a slide table and a slide groove. In other embodiments, it can also be a cylinder, a screw module, etc.

[0056] In some embodiments, in combination Figure 5 and Figure 6 As shown, the fixture 410 includes a loading base 412 and a chip adjustment mechanism 413. The loading base 412 is provided with a loading through hole 4121. The chip adjustment mechanism 413 includes a chip adjustment piece 4131. The chip adjustment piece 4131 is provided in the loading through hole 4121 and can telescopically move along the axis of the loading through hole 4121.

[0057] In the present 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 carries the oxygen sensor to-be-installed part 930 and the oxygen sensor base 920 during the flow process. The chip adjustment piece 4131 of the chip adjustment mechanism 413 is in an extended state at this time, which is used to occupy part of the installation position required by the oxygen sensor chip 910, thereby simplifying the loading difficulty of the oxygen sensor to-be-installed part 930 and the oxygen sensor base 920 (the staff or the loading mechanism can install the oxygen sensor to-be-installed part 930 and the oxygen sensor base 920 on the chip adjustment piece 4131); and, after the oxygen sensor to-be-installed part 930 and the oxygen sensor base 920 cooperate with the chip adjustment 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 through the contraction of the chip adjustment piece 4131, thereby greatly reducing the assembly difficulty of the oxygen sensor chip 910.

[0058] In this embodiment, the height of the chip adjustment piece 4131 can be controlled to adapt to oxygen sensor chips 910 of different specifications (different lengths).

[0059] In some embodiments, in combination Figure 1 and Figure 7 As shown, the oxygen sensor assembly equipment also includes a chip height adjustment mechanism 470, which is adapted to one of the plurality of fixtures 410. The chip height adjustment mechanism 470 includes an adjustment rod 471 and an adjustment drive assembly 472. The adjustment rod 471 is adapted to be connected to the chip adjustment plate 4131 under the drive of the adjustment drive assembly 472, and drives the chip adjustment plate 4131 to perform telescopic movement.

[0060] In the present embodiment, it can be understood that the oxygen sensor assembly equipment is generally provided with a pre-pressing mechanism, which is used to preliminarily press the oxygen sensor installation part 930 and the oxygen sensor chip 910 into shape (such as a talcum powder prefabricated block, a front end bushing, a rear end bushing, etc.). Through pre-pressing, the material distribution is ensured to be uniform, the internal stress is reduced, and cracks or deformation in subsequent processing are avoided. During the pre-pressing process, the oxygen sensor chip 910 needs to be inserted into the oxygen sensor installation part 930 to a certain depth. The chip adjustment plate 4131 is pulled down by the adjustment rod 471 of the chip height adjustment mechanism 470 when the fixture 410 moves to the bottom of the pre-pressing mechanism to ensure that the pre-pressing pressure head of the pre-pressing mechanism does not contact the oxygen sensor chip 910.

[0061] In this embodiment, the adjustment drive assembly 472 is formed by combining a plurality of linear motion modules to realize the three-dimensional movement of the adjustment rod 471. The linear motion module can be a cylinder, a slide module, a screw module, etc.

[0062] In some embodiments, in combination Figure 5 As shown, one of the chip adjustment piece 4131 and the adjustment rod 471 is provided with a limiting groove 41311 , and the other is provided with an inserting portion 4711 matched with the limiting groove 41311 .

[0063] In this embodiment, taking the chip adjustment plate 4131 as an example in which a limiting groove 41311 is set and the adjustment rod 471 as an example in which a plug-in portion 4711 is set, the groove wall of the limiting groove 41311 is suitable for abutting against the plug-in portion 4711, and by changing the groove wall abutted against by the plug-in portion 4711, the adjustment rod 471 can pull down the chip adjustment plate 4131 or move up the chip adjustment plate 4131.

[0064] In other embodiments, the connection mechanism between the chip adjustment piece 4131 and the adjustment rod 471 may also be a magnetic connection, a snap connection, etc.

[0065] In some embodiments, in combination Figure 5 and Figure 6 As shown, the chip adjustment piece 4131 is provided with a first limiting portion 41312 and a second limiting portion 41313, and the first limiting portion 41312 and the second limiting portion 41313 are arranged in sequence along the extension and retraction direction of the chip adjustment piece 4131 (Z direction as shown in the figure); the loading base 412 is provided with an elastic limiting pin 4122, and the elastic head of the elastic limiting pin 4122 is suitable for cooperating with the first limiting portion 41312 or the second limiting portion 41313 for limiting.

[0066] In this embodiment, the chip adjustment piece 4131 moves down to the first limiting portion 41312 and cooperates with the elastic limiting pin 4122, and the chip adjustment piece 4131 cannot move down further, thereby ensuring that the oxygen sensor chip 910 above the chip adjustment piece 4131 will not fall out of the fixture 410; the chip adjustment piece 4131 moves up to the second limiting portion 41313 and cooperates with the elastic limiting pin 4122, and the chip adjustment piece 4131 cannot move up further, thereby ensuring that the chip adjustment piece 4131 will not fall out of the fixture 410; and the positions of the first limiting portion 41312 and the second limiting portion 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 component 930. Compared with adjusting the distance of the drive assembly 472 to set the electrical control, mechanical limiting is more reliable.

[0067] In some embodiments, in combination Figure 5 and Figure 6 As shown, the loading base 412 also includes a plug connector 4123 that can be elastically extended and retracted, and the chip adjustment piece 4131 is provided with a plug slot 41314 corresponding to the plug connector 4123, and 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 guide surface 41316 which are sequentially arranged along the extension and retraction direction of the chip adjustment piece 4131, the stop surface 41315 is perpendicular to the extension and retraction direction, and the guide surface 41316 is arranged at an angle to the extension and retraction direction, the plug connector 4123 can move and retract along the guide surface 41316, and the stop surface 41315 can abut against the plug connector 4123 for limitation.

[0068] In this embodiment, when the chip adjustment piece 4131 moves upward, the guide surface 41316 of the plug-in slot 41314 abuts against the plug connector 4123 and pushes the plug connector 4123 upward, so that the plug connector 4123 has a tendency of elastic compression, so that the plug connector 4123 is disengaged from the plug-in slot 41314, until the chip adjustment piece 4131 moves to the second limiting portion 41313 and cooperates with the elastic limiting pin 4122 to limit the chip adjustment piece 4131, 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-in slot 41314 along the guide surface 41316, until the plug connector 4123 abuts against the stop surface 41315 and cannot move further, thereby fixing the position of the chip adjustment piece 4131, and at the same time, the first limiting portion 41312 cooperates with the elastic limiting pin 4122 to limit the chip.

[0069] In this embodiment, the plug slot 41314 is arranged to cooperate with the plug connector 4123, so that the plug connector 4123 can limit and support the chip adjustment piece 4131. When the chip adjustment piece 4131 is used to support the oxygen sensor chip 910, the plug connector 4123 and the plug slot 41314, the first limiting portion 41312 and the elastic limiting pin 4122 jointly fix the chip adjustment piece 4131, thereby improving the supporting effect on the oxygen sensor chip 910 and preventing the first limiting portion 41312 and the elastic limiting pin 4122 from being damaged by excessive force.

[0070] Furthermore, thanks to the angle setting of the stop surface 41315 and the guide surface 41316, the plug connector 4123 slides along the guide surface 41316 to achieve plug-in mating, without the need for additional equipment to drive the plug connector 4123 to move, thereby reducing the volume of the fixture 410 and reducing the cost of use.

[0071] In this embodiment, the chip adjustment piece 4131 can be moved upwards by a staff member manually or by setting a lifting mechanism under the chip adjustment piece 4131 ; the chip adjustment piece 4131 can be moved downwards by the aforementioned chip height adjustment mechanism 470 .

[0072] In some embodiments, in combination Figure 7 As shown, the fixture 410 also includes a base positioning block 414, which is fixed to one side of the axis of the loading base 412. The base positioning block 414 is provided with a base positioning groove 4141, and the opening of the base positioning groove 4141 faces the axis of the loading base 412. The base positioning groove 4141 is suitable for cooperating with the oxygen sensor base 920 to limit the position.

[0073] In this embodiment, when the loading base 412 receives the oxygen sensor base 920, the surface of the outer shell portion of the oxygen sensor base 920 cooperates with the base positioning groove 4141, and moves in the extension direction of the base positioning groove 4141. The base positioning groove 4141 effectively limits the rotation of the oxygen sensor base 920 during loading or moving, so as to ensure the accurate positioning of the oxygen sensor base 920 and ensure the accuracy and efficiency of the downstream processes (oxygen sensor chip 910 assembly, pre-pressing, etc.).

[0074] In this embodiment, there is one base positioning block 414 having a base positioning groove 4141 with a triangular cross-section. Of course, the number of 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 .

[0075] On the other hand, an embodiment of the present invention further provides an oxygen sensor production line, including the oxygen sensor assembly equipment as described in the above embodiment.

[0076] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field 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), the guiding mechanism (130) being adapted to one of the plurality of jigs (410), the guiding mechanism (130) comprising a guiding support (131) and a positioning jaw (132) connected to the guiding support (131) and capable of opening and closing, the guiding support (131) being provided with a guiding hole (1311), the guiding hole (1311) being suitable for the oxygen sensor chip (910) to pass through; the positioning jaw (132) being suitable for clamping and positioning the oxygen sensor base (920); the guiding hole (1311), the positioning jaw (132) and the jig (410) being arranged in sequence along a 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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