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. The conveying module is connected to the oxygen sensor feeding module, the oxygen sensor chip feeding module and the oxygen sensor press-fitting module and used for conveying the oxygen sensor. The oxygen sensor chip feeding module comprises a positioning base, a positioning base block, an abutting assembly and a driving assembly, the positioning base block is connected to the positioning base, and the positioning base block is provided with a positioning surface; the abutting assembly comprises an elastic piece and an abutting block, and the driving assembly is used for driving the abutting block to be separated from the oxygen sensor chip; wherein the elastic force of the elastic piece is smaller than the minimum destructive force which can be borne by the oxygen sensor chip; in the whole positioning process of the oxygen sensor chip, the maximum pressure borne by the oxygen sensor chip is only the elastic force of the elastic piece, and the driving assembly only acts on the compression stage of the elastic piece, so that the oxygen sensor chip cannot be damaged.

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 needs to be transported and transferred between various processes. The long-term transportation operation will cause the transportation mechanism to accumulate movement errors, affecting the positioning effect of the oxygen sensor chip, resulting in transfer or assembly failure. Therefore, it is necessary to set up a positioning mechanism to eliminate or reduce the accumulated movement errors of the transportation mechanism. However, the conventional positioning mechanism cannot adapt well to the small size and thin thickness of the oxygen sensor chip, and there are problems such as poor positioning effect and easy damage to the oxygen sensor chip. 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 device 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 can realize the positioning of the oxygen sensor chip in combination with an oxygen sensor chip positioning mechanism, thereby ensuring the handling and assembly accuracy of the oxygen sensor chip between each process.

[0004] On the one hand, an embodiment of the present invention provides an oxygen sensor assembly device for assembling an oxygen sensor, wherein the oxygen sensor includes an oxygen sensor base, an oxygen sensor to be mounted, and an oxygen sensor chip, including: The oxygen sensor chip loading module comprises a first conveying mechanism and an oxygen sensor chip positioning mechanism, wherein the oxygen sensor chip positioning mechanism comprises a positioning base, a positioning base block, a pressing assembly and a driving assembly, wherein the positioning base block is connected to the positioning base, and the positioning base block is provided with a positioning surface, and the positioning surface is suitable for abutting against the surface of the oxygen sensor chip; the pressing assembly is connected to the positioning base, and the pressing assembly comprises an elastic member and a pressing block, and the pressing block is suitable for pressing the oxygen sensor chip under the drive of the elastic member, and the driving assembly is connected to the positioning base, and the driving assembly is used to drive the pressing block to separate from the oxygen sensor chip; wherein the elastic force of the elastic member is less than the minimum destructive force that the oxygen sensor chip can withstand; the first conveying mechanism is suitable for moving the positioned oxygen sensor chip away from the oxygen sensor chip positioning mechanism; 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, and is used for conveying the oxygen sensor.

[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, and the conveying module is connected to the oxygen sensor to-be-installed parts loading module, the oxygen sensor base loading module and the oxygen sensor chip 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-pressing mechanism sequentially arranged along the conveying direction of the conveying module, the pre-pressing mechanism includes a retractable pre-pressing head suitable for pressing against the oxygen sensor base; the final-pressing mechanism includes a retractable final-pressing head suitable for pressing against the oxygen sensor base, wherein the pressure of the final-pressing mechanism is greater than the pressure of the pre-pressing mechanism.

[0008] According to some embodiments of the present invention, the conveying module includes a jig, 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 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.

[0010] 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.

[0011] 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.

[0012] According to some embodiments of the present invention, the oxygen sensor chip loading module also includes a guiding mechanism, which includes a guiding bracket and a positioning clamp that can be opened and closed. The guiding bracket, the positioning clamp and the fixture are arranged in sequence along the vertical direction. The positioning clamp is suitable for clamping and positioning the oxygen sensor base. The guiding bracket is provided with a guiding hole, and the guiding hole is suitable for the oxygen sensor chip to pass through.

[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: the conveying module is connected to the oxygen sensor feeding module, the oxygen sensor chip feeding module and the oxygen sensor pressing module to realize the automatic assembly equipment of the oxygen sensor, thereby improving the production efficiency; and the elastic reset of the elastic member is arranged in the oxygen sensor chip positioning mechanism to drive the pressing block to push the oxygen sensor chip. During the entire positioning process of the oxygen sensor chip, the maximum pressure it is subjected to is only the elastic force of the elastic member, and the elastic force of the elastic member is arranged to be always smaller than the minimum destructive force of the oxygen sensor chip, and the pressing of the pressing block will not damage the oxygen sensor chip; and the driving component only acts on the compression stage of the elastic member, that is, the force of the driving component will never act on the oxygen sensor chip, and even if the driving component operates incorrectly and the power provided is too large, it will not cause any damage to the oxygen sensor chip.

[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 3This is one of the structural schematic diagrams of the delivery module of the oxygen sensor assembly equipment according to an embodiment of the present invention; Figure 4 The second structural diagram of the conveying module of the oxygen sensor assembly equipment according to the embodiment of the present invention Figure 5 This is a structural schematic diagram of an oxygen sensor chip positioning mechanism of an oxygen sensor assembly device according to an embodiment of the present invention; Figure 6 This is a second structural schematic diagram of the oxygen sensor chip positioning mechanism of the oxygen sensor assembly equipment according to an embodiment of the present invention; Figure 7 It is a structural schematic diagram of a positioning base block of an oxygen sensor chip positioning mechanism according to an embodiment of the present invention.

[0017] Reference numerals: 100, oxygen sensor chip loading module; 110, first transport mechanism; 120, oxygen sensor chip positioning mechanism; 121, positioning base; 1211, guide portion; 122, positioning base block; 1222, fine positioning groove; 1223, positioning hole; 1224, guide surface; 123, pressing assembly; 1231, elastic member; 1232, pressing block; 12321, fine pressing block; 12322, rough pressing block; 124, driving assembly; 12 5. First pressing assembly; 1251. First elastic member; 1252. First pressing block; 126. Second pressing assembly; 1261. Second elastic member; 1262. Second pressing block; 127. Linkage portion; 1271. Linkage groove; 1272. Linkage bearing; 1273. Linkage rod; 128. First detection member; 130. Guide mechanism; 131. Guide bracket; 1311. Guide hole; 132. Positioning clamp; 140. First detection camera; 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; 420, conveying track; 421, 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 push rod; 442, push rod driving member; 450, return line; 451, conveyor belt; 452, position detection member; 460, lifting platform mechanism; 462, lifting assembly; 463, translation assembly. 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 Figure 1 , Figure 2 and Figure 5As shown, an embodiment of the present invention provides an oxygen sensor assembly device for assembling an oxygen sensor, the oxygen sensor comprising an oxygen sensor base, an oxygen sensor to be mounted and an oxygen sensor chip, the oxygen sensor assembly device comprising 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 oxygen sensor chip loading module 100 comprises a first conveying mechanism 110 and an oxygen sensor chip positioning mechanism 120, the oxygen sensor chip positioning mechanism 120 comprises a positioning base 121, a positioning base block 122, a pressing assembly 123 and a driving assembly 124, the positioning base block 122 is connected to the positioning base 121, the positioning base block 122 is provided with a positioning surface, the positioning surface is suitable for abutting against the surface of the oxygen sensor chip; the pressing assembly 123 is connected to the positioning base 121, the pressing assembly 123 comprises an elastic member 1231 and a pressing assembly 124. Block 1232, the pressing block 1232 is suitable for pressing the oxygen sensor chip under the drive of the elastic member 1231, the driving component 124 is connected to the positioning base 121, and the driving component 124 is used to drive the pressing block 1232 to separate from the oxygen sensor chip; wherein the elastic force of the elastic member 1231 is less than the minimum destructive force that the oxygen sensor chip can withstand; the first transport mechanism 110 is suitable for moving the positioned oxygen sensor chip away from the oxygen sensor chip positioning mechanism 120; 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 and the oxygen sensor to be installed; 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, and is used for conveying the oxygen sensor.

[0023] It should be noted that in the manufacturing process of the oxygen sensor, some processes (such as the above-mentioned oxygen sensor chip loading process) require calibration of the position of the oxygen sensor chip to eliminate the error accumulated by the long-term movement of the first transport mechanism 110, and ensure that the oxygen sensor chip is accurately picked up and moved to a specific position; and the oxygen sensor chip has the characteristics of small size and thin thickness, and the conventional positioning mechanism 440 is easy to cause damage to the oxygen sensor chip.

[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 and the oxygen sensor to-be-installed parts 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 to the conveying module 400, cooperates with the oxygen sensor base and the oxygen sensor to-be-installed parts, and the conveying module 400 then transports the three as a whole to the oxygen sensor pressing module 300 for pressing. When the oxygen sensor chip module is loaded, the first conveying mechanism 110 conveys the oxygen sensor chip on the loading tray to the oxygen sensor chip positioning mechanism 120 for positioning. The oxygen sensor chip positioning mechanism 120 The driving component 124 first drives the pressing block 1232 away from the oxygen sensor chip (that is, away from the positioning surface on the positioning base block 122). At this time, the elastic member 1231 is compressed, so that there is enough space between the positioning surface and the pressing block 1232 to place the oxygen sensor chip. When the oxygen sensor chip is placed between the positioning surface and the pressing block 1232, the driving component 124 releases the drive on the pressing block 1232. The pressing block 1232 moves toward the oxygen sensor chip under the action of the restoring elastic force of the elastic member 1231, and pushes the oxygen sensor chip to make it fit with the positioning surface, thereby realizing the positioning of the oxygen sensor chip. The positioned oxygen sensor chip is then transported to the conveying module 400 by the first transport mechanism 110.

[0025] 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 the elastic reset of the elastic member 1231 is set in the oxygen sensor chip positioning mechanism to drive the pressing block 1232 to push the oxygen sensor chip. During the entire positioning process of the oxygen sensor chip, the maximum pressure it is subjected to is only the elastic force of the elastic member 1231, and the elastic force of the elastic member 1231 is always set to be smaller than the minimum destructive force of the oxygen sensor chip, and the pressing of the pressing block 1232 will not damage the oxygen sensor chip; and the driving component 124 only acts on the compression stage of the elastic member 1231, that is, the force of the driving component 124 will never act on the oxygen sensor chip, and even if the driving component 124 operates incorrectly and provides excessive power, it will not cause any damage to the oxygen sensor chip.

[0026] In this embodiment, “the driving component 124 is used to drive the pressing block 1232 to separate from the oxygen sensor chip” can be understood as follows: Figure 6As shown, the movable end of the driving component 124 can abut against the pressing block 1232 to directly drive the pressing block 1232 to move in the -Y direction as shown in the figure and compress the elastic member 1231; in other embodiments, the movable end of the driving component 124 can also be connected to the elastic member 1231, and the elastic member 1231 can be directly compressed by the driving component 124, and the pressing block 1232 is driven by the elastic member 1231 to move away from the oxygen sensor chip.

[0027] In this embodiment, the driving component 124 may be a cylinder. In other embodiments, it may also be a slide module, a screw module, or other modules.

[0028] In this embodiment, the elastic member 1231 is a linear spring. In other embodiments, it may also be an elastic silicone pad, a torsion spring or other component with elastic reset capability.

[0029] In this embodiment, the "oxygen sensor parts to be installed" 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 can be adaptively adjusted.

[0030] In this embodiment, the first transport mechanism 110 is a multi-axis robot arm; in other embodiments, the first transport mechanism 110 may also be a combination of multiple linear motion modules and a clamping claw.

[0031] In some embodiments, in combination Figure 1 and 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 parts 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 parts loading module 220 is arranged upstream of the oxygen sensor base loading module 210, and the conveying module 400 is connected to the oxygen sensor to-be-installed parts loading module 220, the oxygen sensor base loading module 210 and the oxygen sensor chip loading module 100.

[0032] In this embodiment, the loading part of the conveying module 400 (the jig 410 mentioned later) first moves to the oxygen sensor installation part loading module 220, where the oxygen sensor installation part is manually loaded, and then the conveying module 400 continues to move to the oxygen sensor base loading module 210 to receive the oxygen sensor base. By loading the oxygen sensor installation part and the oxygen sensor base separately, the loading efficiency of the conveying module 400 is improved.

[0033] 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 into the head end of the loading slide rail, and the transport robot transports the oxygen sensor base flowing out of the tail end of the loading slide rail to the conveying module 400.

[0034] 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 .

[0035] 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 .

[0036] In this embodiment, the second detection camera 230 is used to photograph and detect whether the position, quantity, appearance, etc. of the oxygen sensor parts to be installed on the conveying module 400 are qualified. Qualified oxygen sensor parts to be installed will be further transported by the conveying module 400 to the oxygen sensor base loading module 210, and unqualified oxygen sensor parts to be installed 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 parts to be installed that flow to the oxygen sensor base loading module 210 can be stably assembled with the oxygen sensor base, thereby improving the yield rate of the oxygen sensor.

[0037] In some embodiments, in combination Figure 1 and Figure 2 As 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 of the conveying module 400. The pre-pressing mechanism 310 includes a retractable pre-pressing head which is suitable for pressing against the oxygen sensor base; the final pressure mechanism 320 includes a retractable final pressure head which is suitable for pressing against the oxygen sensor base, wherein the pressure of the final pressure mechanism 320 is greater than the pressure of the pre-pressing mechanism 310.

[0038] In this embodiment, the pre-pressing mechanism 310 preliminarily presses the oxygen sensor parts to be installed (such as talcum powder prefabricated blocks, front end bushings, rear end bushings, etc.) and the oxygen sensor chip inside the oxygen sensor base into shape by pressing against the oxygen sensor base. The pre-pressing ensures that the material is evenly distributed, reduces internal stress, and avoids cracks or deformation in subsequent processing. The oxygen sensor is then transported to the final pressing mechanism 320 for further pressing, so that the oxygen sensor reaches the final designed shape and density. The final pressing ensures 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.).

[0039] In some embodiments, in combination Figure 3 and Figure 4As shown, the conveying module 400 includes a fixture 410, 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 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 fixtures 410 one by one. The lever 432 is driven by the lever driving assembly 431 to push the fixture 410 along the conveying direction (X direction in the figure) of the conveying track 420.

[0040] In this embodiment, the fixture 410 is used to carry the oxygen sensor to be installed, the oxygen sensor base and the oxygen sensor chip. The lever driving assembly 431 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.

[0041] 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.

[0042] 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.

[0043] 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 432 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.

[0044] By setting a second lever driving member 4312 to drive the lever 432 to avoid the fixture 410, the lever mechanism 430 as a whole reciprocates within the moving distance of the fixture 410, and the lever 432 is reused in a small range to improve the integration of the equipment.

[0045] 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.

[0046] 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.

[0047] In some embodiments, in combination 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] In some embodiments, in combination Figure 3 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.

[0052] 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.

[0053] 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.

[0054] In this embodiment, the lifting assembly 462 includes a cylinder. In other embodiments, it can also be a slide module, a screw module, etc.

[0055] In some embodiments, in combination Figure 3 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 .

[0056] 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, thereby ensuring that the fixture 410 can achieve accurate flow circulation.

[0057] In this embodiment, the position detection component 452 can be an infrared detector, a detection camera, an acoustic wave detector, etc.

[0058] In some embodiments, in combination Figure 1 and Figure 4 As shown, the oxygen sensor chip loading module 100 also includes a guiding mechanism 130, which includes a guiding bracket 131 and a positioning jaw 132 that can be opened and closed. Along the vertical direction, the guiding bracket 131, the positioning jaw 132 and the fixture 410 are sequentially arranged, and the positioning jaw 132 is suitable for clamping and positioning the oxygen sensor base. The guiding bracket 131 is provided with a guiding hole 1311, and the guiding hole 1311 is suitable for the oxygen sensor chip to pass through.

[0059] In this embodiment, the jig 410 transports the oxygen sensor to-be-installed component and the oxygen sensor base as a whole to the bottom of the guiding mechanism 130, and the positioning clamp 132 clamps and fixes the oxygen sensor base so that the oxygen sensor base and the guiding hole 1311 are accurately positioned, and the first transport mechanism 110 passes the oxygen sensor chip through the guiding hole 1311 and penetrates into the oxygen sensor base to cooperate with the oxygen sensor to-be-installed component.

[0060] In this embodiment, by providing the positioning claws 132 and the guiding holes 1311 of the guiding mechanism 130, for any group of oxygen sensor bases and oxygen sensor components to be installed, accurate positioning of the oxygen sensor chip, the oxygen sensor components to be installed and the oxygen sensor base can always be ensured during the loading process of the oxygen sensor chip.

[0061] In some embodiments, in combination Figure 6 As shown, the pressing assembly 123 includes a first pressing assembly 125 and a second pressing assembly 126. The first pressing assembly 125 includes a first elastic member 1251 and a first pressing block 1252; the second pressing assembly 126 includes a second elastic member 1261 and a second pressing block 1262; the moving direction of the first pressing block 1252 and the moving direction of the second pressing block 1262 are set at an angle.

[0062] In this embodiment, the first pressing block 1252 of the first pressing assembly 125 moves along the Y direction as shown in the figure, and the second pressing block 1262 of the second pressing assembly 126 moves along the X direction as shown in the figure, so as to press the oxygen sensor chip from the X direction and the Y direction respectively, and combined with the support of the positioning base 121 on the bottom of the oxygen sensor chip, accurate positioning of the oxygen sensor chip in three-dimensional space is achieved.

[0063] In this embodiment, the first pressing component 125 and the second pressing component 126 can be in the form of a common driving component 124, and a linkage part 127 (which will be described in detail later) can be set between the first pressing component 125 and the second pressing component 126 to achieve synchronous movement of the first pressing component 125 and the second pressing component 126 through the linkage part 127; of course, it can also be in the form of separate driving, and separate driving components can be set for the first pressing component 125 and the second pressing component 126.

[0064] In other embodiments, the number of the pressing components 123 is not limited to two (the first pressing component 125 and the second pressing component 126 ). The number of the pressing components 123 can be adaptively adjusted based on the shape of the oxygen sensor chip.

[0065] In some embodiments, in combination Figure 1 and Figure 2As shown, the oxygen sensor assembly equipment also includes a first detection camera 140, which is arranged upstream of the oxygen sensor chip positioning mechanism 120 and is used to detect the oxygen sensor chip; the first transport mechanism 110 is connected to the first detection camera 140, the oxygen sensor chip positioning mechanism 120 and the conveying module 400 to realize the transport and assembly of the oxygen sensor chip.

[0066] In this embodiment, the first transport mechanism 110 transports the oxygen sensor chip from the loading tray to the inspection field of view of the first detection camera 140, and the first detection camera 140 detects the appearance of the oxygen sensor chip and determines the front and back sides of the oxygen sensor chip. Unqualified products are moved into the recovery tray, and before qualified products are placed in the oxygen sensor chip positioning mechanism 120, the first transport mechanism 110 adjusts the front and back sides based on the detection results of the first detection camera 140 to ensure that the surface of the oxygen sensor chip corresponds to the positioning surface; the repositioned oxygen sensor chip is then transported by the first transport mechanism 110 to the conveying module 400, and assembled with the oxygen sensor base carried by the conveying module 400.

[0067] In the present embodiment, by providing a first detection camera 140 in cooperation with the oxygen sensor chip positioning mechanism 120, not only the appearance of the oxygen sensor chip is inspected, but also before the oxygen sensor chip is transported to the conveying module 400, the oxygen sensor chip is repositioned by the oxygen sensor chip positioning mechanism 120 to eliminate the accumulated errors caused by the long-term movement of the first transport mechanism 110, thereby ensuring that the oxygen sensor chip can be stably assembled with the oxygen sensor base.

[0068] In some embodiments, in combination Figure 6 As shown, the oxygen sensor chip positioning mechanism 120 also includes a linkage part 127, and the first pressing block 1252 and the second pressing block 1262 are linked through the linkage part 127, so that when one of the first pressing block 1252 and the second pressing block 1262 moves, the other one is driven to approach or move away from the oxygen sensor chip at the same time.

[0069] In this embodiment, the linkage part 127 is provided to realize the synchronous movement of the first pressing block 1252 and the second pressing block 1262, so as to ensure that while the first pressing block 1252 presses the oxygen sensor chip for positioning along the Y direction, the second pressing block 1262 synchronously realizes the positioning of the oxygen sensor chip in the X direction, so as to avoid the situation that one direction is positioned but the other is not positioned, resulting in the oxygen sensor chip moving and rubbing against the first pressing block 1252 or the second pressing block 1262; and, the oxygen sensor chip positioning mechanism 120 is provided with only one driving component 124 to realize the movement of the first pressing block 1252 and the second pressing block 1262, so as to simplify the structure and volume of the oxygen sensor chip positioning mechanism 120, improve the movement and positioning synchronization of the first pressing block 1252 and the second pressing block 1262, and improve the positioning accuracy.

[0070] In some embodiments, in combination Figure 6 As shown, the linkage part 127 includes a linkage groove 1271, a linkage bearing 1272 and a linkage rod 1273. One of the first pressure block 1252 and the second pressure block 1262 is provided with a linkage groove 1271, and the other is provided with a linkage rod 1273. The free end of the linkage rod 1273 is rotatably connected to the linkage bearing 1272. The linkage bearing 1272 is at least partially inserted in the linkage groove 1271. The extension direction of the linkage groove 1271 is set at an angle to the moving direction of the first pressure block 1252 and the moving direction of the second pressure block 1262.

[0071] In this embodiment, when the first pressure block 1252 moves along the Y direction as shown in the figure, the linkage rod 1273 drives the linkage bearing 1272 to move along the Y direction, the linkage bearing 1272 abuts against the groove wall of the linkage groove 1271 and moves along the linkage groove 1271, and the linkage groove 1271 synchronizes the Y-direction movement of the first pressure block 1252 with the movement of the second pressure block 1262 along the X direction; the rotation of the linkage bearing 1272 effectively reduces the friction between it and the groove wall of the linkage groove 1271, thereby increasing the service life of the linkage part 127.

[0072] In other embodiments, the linkage portion 127 may also be in the form of a multi-link combination or a gear set to synchronize the linear motion of the first pressing block 1252 with the linear motion of the second pressing block 1262 .

[0073] In some embodiments, in combination Figure 5 As shown, the positioning base 121 is provided with a guide portion 1211 , and the pressing block 1232 is slidably connected to the guide portion 1211 . The pressing block 1232 is suitable for moving along the extension direction of the guide portion 1211 under the drive of the elastic member 1231 .

[0074] In this embodiment, the moving direction of the pressing block 1232 is limited by the guide portion 1211 to ensure that the pressing block 1232 always moves along the extension direction of the guide portion 1211 under the elastic reset of the elastic member 1231, thereby improving the movement accuracy and ensuring the positioning accuracy of the oxygen sensor chip.

[0075] In this embodiment, the guide portion 1211 can be a slide rail, and the positioning base block 122 is provided with a slide groove corresponding to the slide rail; of course, a slide groove can also be provided on the positioning base 121 as the guide portion 1211, and the positioning base block 122 is provided with a protrusion inserted into the slide groove corresponding to the slide groove.

[0076] In some embodiments, in combination Figure 5 and Figure 7 As shown, the pressing block 1232 includes a fine pressing block 12321 and a rough pressing block 12322. The positioning base block 122 is provided with a fine positioning groove 1222. The fine pressing block 12321 is movably connected to the fine positioning groove 1222 for pressing the oxygen sensor chip. The rough pressing block 12322 is connected to the guide portion 1211. On the basis of the guidance of the guide portion 1211, by setting the fine positioning groove 1222 and the fine pressing block 12321 to cooperate, the movement accuracy of the fine pressing block 12321 is greatly improved, and it is effectively ensured that the oxygen sensor chip pressed by the fine pressing block 12321 can accurately fit the positioning surface, and avoid the situation where the oxygen sensor cannot accurately fit the positioning surface due to the local tilt of the fine pressing block 12321, and effectively ensure the positioning accuracy of the oxygen sensor chip.

[0077] In some embodiments, in combination Figure 5 and Figure 7 As shown, the positioning base block 122 is provided with a positioning hole 1223, and at least part of the side wall of the positioning hole 1223 forms a positioning surface; the opening of the positioning hole 1223 is provided with a guide surface 1224, and along the extension direction of the positioning hole 1223, the guide surface 1224 gradually extends from the opening of the positioning hole 1223 toward the center direction away from the positioning hole 1223.

[0078] In this embodiment, the positioning hole 1223 extends along the Z direction as shown in the figure, and the inclined guide surface 1224 can guide the oxygen sensor chip to slide into the positioning hole 1223, thereby reducing the requirements for the transportation accuracy of the oxygen sensor chip. The positioning hole 1223 can limit the activity range of the oxygen sensor chip, reduce the positioning time, and reduce the moving distance of the pressure block 1232 during positioning to avoid accumulated movement errors, thereby effectively improving the positioning accuracy of the oxygen sensor chip.

[0079] In this embodiment, the shape of the positioning hole 1223 adapted to the oxygen sensor chip is a rectangle. Of course, the shape of the positioning hole 1223 can be adaptively adjusted based on other shapes of the oxygen sensor chip, such as a cylindrical positioning hole 1223.

[0080] In some embodiments, in combination Figure 5 As shown, the oxygen sensor chip positioning mechanism 120 further includes a first detection member 128 , and the first detection member 128 is used to detect the oxygen sensor chip located in the positioning hole 1223 .

[0081] In this embodiment, when the first detection member 128 detects the oxygen sensor chip, it indicates that the oxygen sensor chip has been moved and placed in or above the positioning hole 1223. At this time, the oxygen sensor chip can be inserted into the positioning hole 1223, and the elastic member 1231 drives the pressing block 1232 to press the oxygen sensor chip to complete the positioning.

[0082] In this embodiment, the first detection element 128 may be an image acquisition device, an infrared sensor or other device that can identify the position of the oxygen sensor chip.

[0083] 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.

[0084] The embodiments of the present invention are described in detail above in conjunction with 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, used for assembling an oxygen sensor, the oxygen sensor comprising an oxygen sensor base, an oxygen sensor to be mounted and an oxygen sensor chip, characterized in that: include: An oxygen sensor chip loading module (100) comprises a first transport mechanism (110) and an oxygen sensor chip positioning mechanism (120), wherein the oxygen sensor chip positioning mechanism (120) comprises a positioning base (121), a positioning base block (122), a pressing component (123) and a driving component (124), wherein the positioning base block (122) is connected to the positioning base (121), the positioning base block (122) is provided with a positioning surface, and the positioning surface is suitable for abutting against the surface of the oxygen sensor chip; the pressing component (123) is connected to the positioning base (121), and the pressing component (123) comprises an elastic member (1231) and a pressing block (1232), wherein the pressing block (1232) is adapted to press the oxygen sensor chip under the drive of the elastic member (1231), wherein the driving assembly (124) is connected to the positioning base (121), and wherein the driving assembly (124) is adapted to drive the pressing block (1232) to separate from the oxygen sensor chip; wherein the elastic force of the elastic member (1231) is less than the minimum destructive force that the oxygen sensor chip can withstand; and the first transport mechanism (110) is adapted to move the positioned oxygen sensor chip away from the oxygen sensor chip positioning mechanism (120); An 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 and the oxygen sensor component to be installed; 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) and is used to convey the oxygen sensor.

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-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); and the conveying module (400) is connected to the oxygen sensor to-be-installed component loading module (220), the oxygen sensor base loading module (210) and the oxygen sensor chip loading module (100).

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 against the oxygen sensor base; the final pressure mechanism (320) comprises a retractable final pressure head, which is suitable for pressing against the oxygen sensor base, 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) comprises a jig (410), 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 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 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).

7. 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).

8. The oxygen sensor assembly equipment according to claim 7, 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).

9. The oxygen sensor assembly equipment according to claim 5, characterized in that: The oxygen sensor chip loading module (100) further comprises a guiding mechanism (130), the guiding mechanism (130) comprising a guiding bracket (131) and a positioning jaw (132) capable of opening and closing, wherein the guiding bracket (131), the positioning jaw (132) and the fixture (410) are sequentially arranged along a vertical direction, the positioning jaw (132) being suitable for clamping and positioning the oxygen sensor base, and the guiding bracket (131) being provided with a guiding hole (1311), the guiding hole (1311) being suitable for the oxygen sensor chip to pass through.

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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