Oxygen Sensor Assembly Equipment and Oxygen Sensor Production Line

Abstract

The present invention discloses an oxygen sensor assembly device and an oxygen sensor production line. The oxygen sensor assembly device includes an oxygen sensor chip loading module, an oxygen sensor loading module, an oxygen sensor pressing module, and a conveying module; the conveying module is connected to the oxygen sensor loading module, the oxygen sensor chip loading module, and the oxygen sensor pressing module for conveying the oxygen sensor; the oxygen sensor chip loading module includes a positioning base, a positioning block, a pressing component, and a driving component. The positioning block is connected to the positioning base and is provided with a positioning surface; the pressing component includes an elastic member and a pressing block, and the driving component is used to drive the pressing block away 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; during the entire positioning process of the oxygen sensor chip, the maximum pressure it receives is only the elastic force of the elastic member, and the driving component only acts on the compression stage of the elastic member and cannot cause any damage to the oxygen sensor chip.

Description

Technical Field

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

[0002] In the related art, during the manufacturing process of an oxygen sensor, it is necessary to transfer the oxygen sensor chip between various processes. Long-term handling operations will cause the handling mechanism to accumulate movement errors, affecting the positioning effect of the oxygen sensor chip, resulting in transfer or assembly failures. Therefore, it is necessary to set up a positioning mechanism to eliminate or reduce the cumulative movement errors of the handling mechanism. However, the conventional positioning mechanism cannot well adapt to the characteristics of the oxygen sensor chip, such as small volume and thin thickness, 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 at least solve one of the technical problems existing in the prior art. For this purpose, the present invention provides an oxygen sensor assembly device and an oxygen sensor production line, which can realize the automatic assembly of the oxygen sensor through the oxygen sensor chip feeding module, the oxygen sensor feeding module, the oxygen sensor pressing module and the conveying module; and combine the oxygen sensor chip positioning mechanism to position the oxygen sensor chip, ensuring the handling and assembly accuracy of the oxygen sensor chip between various processes.

[0004] On the one hand, an embodiment of the present invention provides an oxygen sensor assembly device for assembling an oxygen sensor. The oxygen sensor includes an oxygen sensor base, an oxygen sensor to-be-installed part and an oxygen sensor chip, and the device includes:

[0005] An oxygen sensor chip feeding module, including a first handling mechanism and an oxygen sensor chip positioning mechanism. The oxygen sensor chip positioning mechanism includes a positioning base, a positioning block, a pressing component and a driving component. The positioning block is connected to the positioning base, and the positioning block is provided with a positioning surface, and the positioning surface is adapted to abut against the surface of the oxygen sensor chip; the pressing component is connected to the positioning base, and the pressing component includes an elastic member and a pressing block, and the pressing block is adapted to press the oxygen sensor chip under the drive of the elastic member. The driving component is connected to the positioning base, and the driving component is used to drive the pressing block to disengage 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 handling mechanism is adapted to carry the positioned oxygen sensor chip away from the oxygen sensor chip positioning mechanism;

[0006] An oxygen sensor feeding module, arranged upstream of the oxygen sensor chip feeding module, for feeding the oxygen sensor base and the oxygen sensor to-be-installed part;

[0007] An oxygen sensor press-fitting module, which is arranged downstream of the oxygen sensor chip loading module;

[0008] A conveying module, which is connected to the oxygen sensor loading module, the oxygen sensor chip loading module and the oxygen sensor press-fitting module for conveying the oxygen sensor.

[0009] According to some embodiments of the present invention, the oxygen sensor loading module includes an oxygen sensor base loading module and an oxygen sensor component to be installed loading module. The oxygen sensor base loading module is arranged upstream of the oxygen sensor chip loading module; the oxygen sensor component to be installed loading module is arranged upstream of the oxygen sensor base loading module, and the conveying module is connected to the oxygen sensor component to be installed loading module, the oxygen sensor base loading module and the oxygen sensor chip loading module.

[0010] According to some embodiments of the present invention, the oxygen sensor loading module further includes a second detection camera, which is arranged downstream of the oxygen sensor component to be installed loading module, and the detection field of view of the second detection camera faces the conveying module.

[0011] According to some embodiments of the present invention, the oxygen sensor press-fitting module includes a pre-pressing mechanism and a final pressing mechanism arranged in sequence along the conveying direction of the conveying module. The pre-pressing mechanism includes a retractable pre-pressing head, and the pre-pressing head is adapted to press against the oxygen sensor base; the final pressing mechanism includes a retractable final pressing head, and the final pressing head is adapted to press against the oxygen sensor base, wherein the pressure of the final pressing mechanism is greater than that of the pre-pressing mechanism.

[0012] According to some embodiments of the present invention, the conveying module includes a jig, a conveying track and a dial rod mechanism. A plurality of the jigs are slidably connected to the conveying track, the conveying track is formed by connecting a plurality of conveying sub-tracks end to end in sequence, and the dial rod mechanism includes a dial rod driving component and a plurality of dial rods corresponding to the jigs one by one. The dial rods push the jigs along the conveying direction of the conveying track under the drive of the dial rod driving component.

[0013] According to some embodiments of the present invention, the conveying module further includes a plurality of positioning mechanisms, which are fixed on one side of the conveying track. The positioning mechanism includes a positioning ejector rod and an ejector rod driving part. A jig positioning groove cooperating with the positioning ejector rod is arranged on the jig, and the positioning ejector rod is adapted to cooperate with the jig positioning groove for fixing under the drive of the ejector rod driving part.

[0014] According to some embodiments of the present invention, the conveying module further includes a return line and two lifting table mechanisms. The conveying tracks are stacked above the return line. Lifting table mechanisms are respectively arranged at the head end and the tail end of the conveying tracks. The conveying tracks and the return line are connected through the lifting table mechanisms.

[0015] The lifting table mechanism includes a lifting component and a translation component. The lifting component is used to drive the translation component to lift, and the translation component is used to translate the fixture.

[0016] According to some embodiments of the present invention, the return line includes a plurality of conveyor belts and a plurality of position detection components. The conveyor belts are connected end to end. The position detection components are arranged at the head end and the tail end of each conveyor belt. The position detection components are adapted to detect the fixture.

[0017] According to some embodiments of the present invention, the oxygen sensor chip loading module further includes a guiding mechanism. The guiding mechanism includes a guiding bracket and a positioning jaw that can open and close. Along the vertical direction, the guiding bracket, the positioning jaw, and the fixture are arranged in sequence. The positioning jaw is adapted to clamp and position the oxygen sensor base. The guiding bracket is provided with a guiding hole, and the guiding hole is adapted for the oxygen sensor chip to pass through.

[0018] On the other hand, an embodiment of the present invention also provides an oxygen sensor production line, including the oxygen sensor assembly equipment as described above.

[0019] The embodiments of the present invention have at least the following beneficial effects: An automatic assembly device for oxygen sensors is realized by connecting the conveying module to the oxygen sensor loading module, the oxygen sensor chip loading module, and the oxygen sensor pressing module, improving production efficiency; and by setting the elastic reset of the elastic member in the oxygen sensor positioning chip 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 receives is only the elastic force of the elastic member, and the elastic force of the elastic member is always set to be less than the minimum destructive force of the oxygen sensor chip, so the pressing of the pressing block will not damage the oxygen sensor chip; moreover, the driving component only acts on the compression stage of the elastic member, that is, the acting force of the driving component will never act on the oxygen sensor chip. Even if the driving component runs wrongly and provides too much power, it is impossible to cause any damage to the oxygen sensor chip.

[0020] The additional aspects and advantages of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0022] Figure 1 Top view of the oxygen sensor assembly device according to an embodiment of the present invention;

[0023] Figure 2 Axonometric view of the oxygen sensor assembly device according to an embodiment of the present invention;

[0024] Figure 3 One of the structural schematic diagrams of the conveying module of the oxygen sensor assembly device according to an embodiment of the present invention;

[0025] Figure 4 Two of the structural schematic diagrams of the conveying module of the oxygen sensor assembly device according to an embodiment of the present invention

[0026] Figure 5 One of the structural schematic diagrams of the oxygen sensor chip positioning mechanism of the oxygen sensor assembly device according to an embodiment of the present invention;

[0027] Figure 6 Two of the structural schematic diagrams of the oxygen sensor chip positioning mechanism of the oxygen sensor assembly device according to an embodiment of the present invention;

[0028] Figure 7 Structural schematic diagram of the positioning base block of the oxygen sensor chip positioning mechanism of the oxygen sensor assembly device according to an embodiment of the present invention.

[0029] Reference numerals:

[0030] 100. Oxygen sensor chip loading module; 110. First handling 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 component; 1231. Elastic member; 1232. Pressing block; 12321. Fine pressing block; 12322. Coarse pressing block; 124. Driving component; 125. First pressing component; 1251. First elastic member; 1252. First pressing block; 126. Second pressing component; 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. Alignment mechanism; 131. Alignment bracket; 1311. Alignment hole; 132. Positioning jaw; 140. First detection camera;

[0031] 200. Oxygen sensor loading module; 210. Oxygen sensor base loading module; 220. Oxygen sensor to-be-installed part loading module; 230. Second detection camera;

[0032] 300. Oxygen sensor pressing module; 310. Pre-pressing mechanism; 320. Final pressing mechanism;

[0033] 400, Conveyor module; 410, Fixture; 411, Fixture positioning groove; 420, Conveyor track; 421, Conveyor sub-track; 430, Pusher mechanism; 431, Pusher drive assembly; 4311, First pusher drive; 4312, Second pusher drive; 432, Pusher; 440, Positioning mechanism; 441, Positioning ejector rod; 442, Ejector rod drive; 450, Return line; 451, Conveyor belt; 452, Position detection component; 460, Lifting table mechanism; 462, Lifting assembly; 463, Translation assembly. Detailed implementation mode

[0034] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0035] In the description of the present invention, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0036] In the description of the present invention, the meaning of "several" is one or more, the meaning of "multiple" is more than two, and understandings such as greater than, less than, exceeding, etc. do not include the present number, and understandings such as "above", "below", "within" include the present number. If there is a description of "first", "second", etc., it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0037] In the description of the present invention, unless otherwise clearly defined, words such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0038] Please refer to Figure 1 , Figure 2 and Figure 5As shown in the figure, an embodiment of the present invention provides an oxygen sensor assembly device for assembling an oxygen sensor. The oxygen sensor includes an oxygen sensor base, an oxygen sensor component to be installed, and an oxygen sensor chip. The oxygen sensor assembly device includes an oxygen sensor chip loading module 100, an oxygen sensor loading module 200, an oxygen sensor pressing module 300, and a conveying module 400. The oxygen sensor chip loading module 100 includes a first handling mechanism 110 and an oxygen sensor chip positioning mechanism 120. The oxygen sensor chip positioning mechanism 120 includes a positioning base 121, a positioning block 122, a pressing assembly 123, and a driving assembly 124. The positioning block 122 is connected to the positioning base 121. The positioning block 122 is provided with a positioning surface, and the positioning surface is adapted to abut against the surface of the oxygen sensor chip. The pressing assembly 123 is connected to the positioning base 121. The pressing assembly 123 includes an elastic member 1231 and a pressing block 1232. The pressing block 1232 is adapted to press the oxygen sensor chip under the drive of the elastic member 1231. The driving assembly 124 is connected to the positioning base 121, and the driving assembly 124 is used to drive the pressing block 1232 to disengage from the oxygen sensor chip. Among them, the elastic force of the elastic member 1231 is less than the minimum destructive force that the oxygen sensor chip can withstand. The first handling mechanism 110 is adapted to move 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 component 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.

[0039] It should be noted that during the manufacturing process of the oxygen sensor, some processes (such as the above-mentioned oxygen sensor chip loading process) need to calibrate the position of the oxygen sensor chip to eliminate the errors accumulated during the long-term movement of the first handling mechanism 110 and ensure that the oxygen sensor chip is accurately picked up and moved to a specific position. Moreover, the oxygen sensor chip has the characteristics of small volume and thin thickness, and the conventional positioning mechanism 440 is likely to damage the oxygen sensor chip.

[0040] The oxygen sensor assembly device according to an embodiment of the present invention, first, the conveying module 400 carries the oxygen sensor base and the oxygen sensor parts to be installed from the oxygen sensor feeding module 200, and conveys them to the oxygen sensor chip feeding module 100. The oxygen sensor chip feeding module 100 transports the oxygen sensor chip to the conveying module 400, and cooperates with the oxygen sensor base and the oxygen sensor parts to be installed. Then, the conveying module 400 transports the three as a whole to the oxygen sensor pressing module 300 for pressing; when the oxygen sensor chip module is being fed, the first handling mechanism 110 transports the oxygen sensor chip on the material carrier to the oxygen sensor chip positioning mechanism 120 for positioning. The driving component 124 of the oxygen sensor chip positioning mechanism 120 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 driving of the pressing block 1232. The pressing block 1232 moves towards the oxygen sensor chip under the reset elastic force of the elastic member 1231, and pushes the oxygen sensor chip to make it fit with the positioning surface, realizing the positioning of the oxygen sensor chip. The positioned oxygen sensor chip is then transported to the conveying module 400 by the first handling mechanism 110.

[0041] The oxygen sensor assembly device according to an embodiment of the present invention is an automatic assembly device for oxygen sensors, which realizes the automatic assembly of oxygen sensors by connecting the oxygen sensor feeding module 200, the oxygen sensor chip feeding module 100, and the oxygen sensor pressing module 300 through the conveying module 400, improving production efficiency; and by setting the elastic reset of the elastic member 1231 in the oxygen sensor positioning chip 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 receives is only the elastic force of the elastic member 1231, and the elastic force of the elastic member 1231 is always set to be less than the minimum destructive force of the oxygen sensor chip, so the pressing of the pressing block 1232 will not damage the oxygen sensor chip; moreover, the driving component 124 only acts on the compression stage of the elastic member 1231, that is, the acting force of the driving component 124 will never act on the oxygen sensor chip. Even in the case where the driving component 124 runs wrongly and provides too much power, it cannot cause any damage to the oxygen sensor chip.

[0042] In this embodiment, "the driving component 124 is used to drive the pressing block 1232 away from the oxygen sensor chip" can be understood as Figure 6As shown, the active end of the driving component 124 can be in contact with 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, it can also be in the form that the active end of the driving component 124 is connected to the elastic member 1231, and the elastic member 1231 is 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.

[0043] In this embodiment, the driving component 124 can be a cylinder, and in other embodiments, it can also be a module such as a slide table module or a lead screw module.

[0044] In this embodiment, the elastic member 1231 is a linear spring, and in other embodiments, it can also be an elastic silicone pad, a torsion spring or other components with elastic reset ability.

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

[0046] In this embodiment, the first handling mechanism 110 is a multi-axis robotic arm; in other embodiments, the first handling mechanism 110 can also be in the form of a combination of multiple linear motion modules and cooperating with a gripper.

[0047] 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 part 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 part loading module 220 is arranged upstream of the oxygen sensor base loading module 210, and the conveying module 400 is connected between the oxygen sensor to-be-installed part loading module 220, the oxygen sensor base loading module 210 and the oxygen sensor chip loading module 100.

[0048] In this embodiment, the loading part of the conveying module 400 (the fixture 410 mentioned later) first moves to the oxygen sensor to-be-installed part loading module 220, and the oxygen sensor to-be-installed part is manually loaded by an operator, and then the conveying module 400 continues to move to the oxygen sensor base loading module 210 to receive the oxygen sensor base. By separately loading the oxygen sensor to-be-installed part and the oxygen sensor base independently, the loading efficiency of the conveying module 400 is improved.

[0049] In this embodiment, the oxygen sensor base loading module 210 includes a vibrating sieve, a loading slide rail, and a handling robot. The vibrating sieve evenly screens the oxygen sensor bases into the head end of the loading slide rail, and the handling robot transports the oxygen sensor bases flowing out from the tail end of the loading slide rail to the conveying module 400.

[0050] In other embodiments, the oxygen sensor to-be-installed part loading module 220 can also be set to an automatic loading structure similar to the above-mentioned oxygen sensor base loading module 210.

[0051] In some embodiments, in combination with Figure 1 and Figure 2 as shown, the oxygen sensor loading module 200 further includes a second detection camera 230. The second detection camera 230 is arranged downstream of the oxygen sensor to-be-installed part loading module 220, and the detection field of view of the second detection camera 230 faces the conveying module 400.

[0052] 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 on the conveying module 400 are qualified. The qualified oxygen sensor to-be-installed parts will be continuously conveyed by the conveying module 400 to the oxygen sensor base loading module 210, and the unqualified oxygen sensor to-be-installed parts need to be replaced with qualified products before they can be continuously conveyed. By setting the second detection camera 230, it is ensured that the oxygen sensor to-be-installed parts flowing to the oxygen sensor base loading module 210 can be stably assembled with the oxygen sensor base, improving the yield rate of the oxygen sensor.

[0053] In some embodiments, in combination with Figure 1 and Figure 2 as shown, the oxygen sensor press-fitting module 300 includes a pre-pressing mechanism 310 and a final pressing mechanism 320 arranged in sequence along the conveying direction of the conveying module 400. The pre-pressing mechanism 310 includes a retractable pre-pressing head, and the pre-pressing head is adapted to press against the oxygen sensor base; the final pressing mechanism 320 includes a retractable final pressing head, and the final pressing head is adapted to press against the oxygen sensor base. Among them, the pressure of the final pressing mechanism 320 is greater than the pressure of the pre-pressing mechanism 310.

[0054] In this embodiment, the pre-pressing mechanism 310 initially presses and forms the oxygen sensor to-be-installed parts (such as talcum powder prefabricated blocks, front end bushings, rear end bushings, etc.) and the oxygen sensor chip inside by pressing against the oxygen sensor base. Through pre-pressing, it is ensured that the material distribution is uniform, internal stress is reduced, and cracks or deformations are avoided during subsequent processing; then it is conveyed 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 airtightness, conductivity, etc.).

[0055] In some embodiments, in combination with Figure 3 and Figure 4As shown, the conveying module 400 includes a fixture 410, a conveying track 420, and a dial rod mechanism 430. A plurality of fixtures 410 are slidably connected to the conveying track 420. The conveying track 420 is formed by sequentially connecting multiple sections of conveying sub-tracks 421 end to end. The dial rod mechanism 430 includes a dial rod driving assembly 431 and a plurality of dial rods 432 corresponding to the fixtures 410 one by one. The dial rods 432 push the fixtures 410 along the conveying direction of the conveying track 420 (the X direction shown in the figure) under the drive of the dial rod driving assembly 431.

[0056] In this embodiment, the fixture 410 is used to carry the oxygen sensor to-be-installed part, the oxygen sensor base, and the oxygen sensor chip. The dial rod driving assembly 431 of the dial rod mechanism 430 drives the dial rod 432 to move along the X direction shown in the figure to drive the fixture 410 corresponding to the dial rod 432 to move to the next working station.

[0057] In this embodiment, the conveying track 420 is formed by splicing multiple sections of conveying sub-tracks 421. The conveying sub-tracks 421 can be in a form corresponding to each module separately (for example, corresponding to the oxygen sensor chip feeding module 100, the oxygen sensor feeding module 200, the oxygen sensor pressing module 300, etc. one by one), and of course, can also be in a one-to-many form (for example, one conveying sub-track 421 can correspond to both the oxygen sensor chip feeding module 100 and the oxygen sensor pressing module 300 at the same time), so that different modules in the oxygen sensor assembly device can be separately disassembled, connected, and rearranged to form a new process oxygen sensor assembly device; on this basis, by the form of driving the fixture 410 to move by the dial rod 432, it is always ensured that the moving distance of each fixture 410 between working stations is the same, effectively avoiding the influence of the gap at the connection between the conveying sub-tracks 421 on the precise movement of the fixture 410.

[0058] In some embodiments, as shown in combination with Figure 4 the figure, the dial rod driving assembly 431 includes a first dial rod driving member 4311 and a second dial rod driving member 4312. The first dial rod driving member 4311 is adapted to drive the dial rod 432 to move along the conveying direction, and the second dial rod driving member 4312 is adapted to drive the dial rod 432 to move along a third direction, and the third direction is set at an angle to the conveying direction.

[0059] In this embodiment, after the dial rod 432 pushes the fixture 410 to move one working station along the conveying direction under the drive of the first dial rod driving member 4311, the second dial rod driving member 4312 drives the dial rod 432 to move along the third direction to avoid the fixture 410, then the first dial rod driving member 4311 moves the dial rod 432 along the conveying direction, and finally the second dial rod 432 drives the dial rod 432 to move in the reverse direction of the third direction and insert between the fixtures 410 to prepare for the next push of the fixture 410.

[0060] By setting the second lever driving member 4312 to drive the lever 432 to avoid the fixture 410, the entire lever mechanism 430 reciprocates within the moving distance of the fixture 410 once, implementing the repeated use of the lever 432 within a small range and improving the equipment integration degree.

[0061] 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 included angle between the third direction and the conveying direction can be adaptively adjusted to enable the lever 432 after moving in the third direction to avoid the fixture 410.

[0062] In this embodiment, the first lever driving member 4311 and the second lever driving member 4312 are cylinders. Of course, they can also be slide table modules, lead screw modules, etc.

[0063] In some embodiments, in combination Figure 4 As shown, the conveying module 400 further includes a plurality of positioning mechanisms 440. The positioning mechanisms 440 are fixed to one side of the conveying track 420. The positioning mechanism 440 includes a positioning ejector rod 441 and an ejector rod driving member 442. A fixture positioning groove 411 cooperating with the positioning ejector rod 441 is provided on the fixture 410. The positioning ejector rod 441 is adapted to cooperate with the fixture positioning groove 411 to be fixed under the drive of the ejector rod driving member 442.

[0064] In this embodiment, after the lever 432 moves the fixture 410 to the corresponding station, the positioning ejector rod 441 of the positioning mechanism 440 extends under the drive of the ejector rod driving member 442 and inserts into the fixture positioning groove 411 to limit and fix the fixture 410 to the conveying track 420, ensuring that the fixture 410 stably supports the oxygen sensor during the feeding or assembly process of any module.

[0065] In this embodiment, the end of the positioning ejector rod 441 is a triangular head, and the fixture positioning groove 411 is a triangular groove. Of course, the specific shapes of the end of the positioning ejector rod 441 and the fixture positioning groove 411 can be adaptively adjusted.

[0066] In this embodiment, the ejector rod driving member 442 is a cylinder. In other embodiments, it can also be a slide table module, a lead screw module, etc.

[0067] In some embodiments, in combination Figure 3 As shown, the conveying module 400 further includes a return line 450 and two lifting table mechanisms 460. The conveying track 420 is stacked above the return line 450. Lifting table mechanisms 460 are respectively arranged at the head and tail of the conveying track 420. The conveying track 420 is connected to the return line 450 through the lifting table mechanisms 460; the lifting table mechanism 460 includes a lifting component 462 and a translation component 463. The lifting component 462 is used to drive the translation component 463 to lift, and the translation component 463 is used to translate the fixture 410.

[0068] In this embodiment, the jig 410 moves along the conveying direction (X direction) of the conveying track 420 and flows into the translation assembly 463 of the first lifting table mechanism 460 at the end of the conveying track 420. After the jig 410 is completely moved into the lifting table mechanism 460, the translation assembly 463 is driven by the lifting assembly 462 to move downward until it is connected to the head end of the return line 450. The translation assembly 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 end. At the end of the return line 450, the jig 410 flows into the translation assembly 463 of the second lifting table mechanism 460. After the jig 410 completely enters the lifting table mechanism 460, the translation assembly 463 is driven by the lifting assembly 462 to move downward until it is connected to the head end of the conveying track 420, realizing the cyclic movement of the jig 410 and completing the automated process of the oxygen sensor assembly equipment.

[0069] In this embodiment, the translation assembly 463 includes a horizontally arranged conveyor belt. In other embodiments, it can also be a slide table module, a lead screw module, etc.

[0070] In this embodiment, the lifting assembly 462 includes a cylinder. In other embodiments, it can also be a slide table module, a lead screw module, etc.

[0071] In some embodiments, in combination with Figure 3 As shown, the return line 450 includes a plurality of conveyor belts 451 and a plurality of position detection components 452. The conveyor belts 451 are connected end to end, and position detection components 452 are arranged at the head end and the tail end of each conveyor belt 451. The position detection components 452 are adapted to detect the jig 410.

[0072] In this embodiment, the return line 450 can adopt a conventional conveyor belt 451 to reduce costs, and the position detection component 452 is arranged to detect the jig 410 to obtain the moving interval time between adjacent jigs 410. Then, by adjusting the conveying speed of the conveyor belt 451, the time for the jig 410 to move to the end of the return line 450 is changed to compensate for the interval time, ensuring that the jig 410 can achieve an accurate flow cycle.

[0073] In this embodiment, the position detection component 452 can be an infrared detector, a detection camera, a sound wave detector, etc.

[0074] In some embodiments, in combination with Figure 1 and Figure 4 As shown, the oxygen sensor chip loading module 100 further includes an alignment mechanism 130. The alignment mechanism 130 includes an alignment bracket 131 and a positioning jaw 132 that can open and close. Along the vertical direction, the alignment bracket 131, the positioning jaw 132, and the jig 410 are arranged in sequence. The positioning jaw 132 is adapted to clamp and position the oxygen sensor base. The alignment bracket 131 is provided with an alignment hole 1311, and the alignment hole 1311 is adapted for the oxygen sensor chip to pass through.

[0075] In this embodiment, the jig 410 conveys the whole of the oxygen sensor part to be installed and the oxygen sensor base it carries to the lower part of the alignment mechanism 130. The positioning jaws 132 clamp and fix the oxygen sensor base, so that the oxygen sensor base and the alignment holes 1311 are accurately positioned. The first handling mechanism 110 passes the oxygen sensor chip through the alignment holes 1311 and penetrates into the oxygen sensor base to cooperate with the oxygen sensor part to be installed.

[0076] In this embodiment, by providing the positioning jaws 132 and the alignment holes 1311 of the alignment mechanism 130, for any group of oxygen sensor bases and oxygen sensor parts to be installed, it is always ensured that during the feeding process of the oxygen sensor chip, the positioning of the oxygen sensor chip, the oxygen sensor part to be installed, and the oxygen sensor base is accurate.

[0077] In some embodiments, as shown in Figure 6 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 directions of the first pressing block 1252 and the second pressing block 1262 are arranged at an angle.

[0078] In this embodiment, the first pressing block 1252 of the first pressing assembly 125 moves along the Y direction shown in the figure, and the second pressing block 1262 of the second pressing assembly 126 moves along the X direction shown in the figure 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 for the bottom of the oxygen sensor chip, accurate positioning of the oxygen sensor chip in three-dimensional space is achieved.

[0079] In this embodiment, the first pressing assembly 125 and the second pressing assembly 126 can be in the form of sharing a driving assembly 124. A linkage part 127 (which will be described in detail later) can be provided between the first pressing assembly 125 and the second pressing assembly 126 to realize the synchronous movement of the first pressing assembly 125 and the second pressing assembly 126 through the linkage part 127; of course, it can also be in the form of separate driving, and separate driving assemblies can be provided for the first pressing assembly 125 and the second pressing assembly 126.

[0080] In other embodiments, the number of the pressing assemblies 123 is not limited to two (the first pressing assembly 125 and the second pressing assembly 126). Based on the shape of the oxygen sensor chip, the number of the pressing assemblies 123 can be adaptively adjusted.

[0081] In some embodiments, as shown in Figure 1 and Figure 2As shown, the oxygen sensor assembly device further 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 handling 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 handling and assembly of the oxygen sensor chip.

[0082] In this embodiment, the first handling mechanism 110 transports the oxygen sensor chip from the loading tray to the detection field of view of the first detection camera 140. 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. Before the qualified products are placed in the oxygen sensor chip positioning mechanism 120, the first handling 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 handling mechanism 110 to the conveying module 400 and is assembled in cooperation with the oxygen sensor base carried by the conveying module 400.

[0083] In this embodiment, by setting the first detection camera 140 in cooperation with the oxygen sensor chip positioning mechanism 120, not only the appearance of the oxygen sensor chip is detected, but also before the oxygen sensor chip is transported to the conveying module 400, the oxygen sensor chip positioning mechanism 120 re-positions the oxygen sensor chip to eliminate the cumulative error generated by the long-term movement of the first handling mechanism 110 and ensure that the oxygen sensor chip can be stably assembled with the oxygen sensor base.

[0084] In some embodiments, in combination with Figure 6 As shown, the oxygen sensor chip positioning mechanism 120 further includes a linkage part 127. 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, it drives the other to approach or move away from the oxygen sensor chip simultaneously.

[0085] In this embodiment, the synchronous movement of the first pressing block 1252 and the second pressing block 1262 is realized through the setting of the linkage part 127, ensuring that while the first pressing block 1252 presses and positions the oxygen sensor chip along the Y direction, the second pressing block 1262 simultaneously realizes the positioning of the oxygen sensor chip in the X direction, avoiding the situation where one direction is positioned while the other is not, resulting in the movement of the oxygen sensor chip and friction with the first pressing block 1252 or the second pressing block 1262; moreover, only one driving component 124 is provided in the oxygen sensor chip positioning mechanism 120 to realize the movement of the first pressing block 1252 and the second pressing block 1262, simplifying the structure and volume of the oxygen sensor chip positioning mechanism 120, improving the synchronous movement positioning of the first pressing block 1252 and the second pressing block 1262, and improving the positioning accuracy.

[0086] In some embodiments, as shown in Figure 6 the linkage part 127 includes a linkage groove 1271, a linkage bearing 1272, and a linkage rod 1273. One of the first pressing block 1252 and the second pressing block 1262 is provided with the linkage groove 1271, and the other is provided with the linkage rod 1273. The free end of the linkage rod 1273 is rotatably connected to the linkage bearing 1272, and the linkage bearing 1272 is at least partially inserted into the linkage groove 1271. The extending direction of the linkage groove 1271 is set at an angle with both the moving direction of the first pressing block 1252 and the moving direction of the second pressing block 1262.

[0087] In this embodiment, when the first pressing block 1252 moves along the illustrated Y direction, 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. The linkage groove 1271 synchronizes the Y-direction movement of the first pressing block 1252 into the X-direction movement of the second pressing block 1262; the rotation of the linkage bearing 1272 effectively reduces the friction between it and the groove wall of the linkage groove 1271, improving the service life of the linkage part 127.

[0088] In other embodiments, the linkage part 127 can also be in the form of a multi-link combination or a gear set to realize synchronizing the linear movement of the first pressing block 1252 into the linear movement of the second pressing block 1262.

[0089] In some embodiments, as shown in Figure 5 the positioning base 121 is provided with a guiding part 1211. The pressing block 1232 is slidably connected to the guiding part 1211, and the pressing block 1232 is adapted to move along the extending direction of the guiding part 1211 under the drive of the elastic member 1231.

[0090] In this embodiment, the movement direction of the pressing block 1232 is restricted by the guiding portion 1211 to ensure that the pressing block 1232 always moves along the extending direction of the guiding portion 1211 under the elastic reset of the elastic member 1231, improving the movement accuracy and ensuring the positioning accuracy of the oxygen sensor chip.

[0091] In this embodiment, the guiding portion 1211 may be a slide rail, and the positioning base block 122 is provided with a sliding groove corresponding to the slide rail; of course, a sliding groove may also be provided on the positioning base 121 as the guiding portion 1211, and the positioning base block 122 is provided with a protrusion corresponding to the sliding groove and inserted into the sliding groove.

[0092] In some embodiments, as shown in Figure 5 and Figure 7 the pressing block 1232 includes a fine pressing block 12321 and a coarse pressing block 12322. The positioning base block 122 is provided with a fine positioning groove 1222. The fine pressing block 12321 is movably connected in the fine positioning groove 1222 and is used for pressing the oxygen sensor chip. The coarse pressing block 12322 is connected to the guiding portion 1211. On the basis of the guiding of the guiding portion 1211, by setting the cooperation between the fine positioning groove 1222 and the fine pressing block 12321, the movement accuracy of the fine pressing block 12321 is greatly improved, effectively ensuring that the oxygen sensor chip pressed by the fine pressing block 12321 can be accurately attached to the positioning surface, avoiding the situation that the oxygen sensor cannot be accurately attached to the positioning surface due to local inclination of the fine pressing block 12321, and effectively ensuring the positioning accuracy of the oxygen sensor chip.

[0093] In some embodiments, as shown in Figure 5 and Figure 7 the positioning base block 122 is provided with a positioning hole 1223. At least part of the side wall of the positioning hole 1223 forms a positioning surface; a guiding surface 1224 is provided at the orifice of the positioning hole 1223. Along the extending direction of the positioning hole 1223, the guiding surface 1224 gradually extends from the orifice of the positioning hole 1223 towards the direction away from the center of the positioning hole 1223.

[0094] In this embodiment, the positioning hole 1223 extends along the illustrated Z direction. The inclined guiding surface 1224 can guide the oxygen sensor chip to slide into the positioning hole 1223, reducing the requirement for the handling accuracy of the oxygen sensor chip. The positioning hole 1223 can limit the movement range of the oxygen sensor chip, reduce the positioning time, and reduce the movement distance during the positioning of the pressing block 1232 to avoid the accumulation of movement errors, effectively improving the positioning accuracy of the oxygen sensor chip.

[0095] In this embodiment, the shape of the positioning hole 1223 adapted to the oxygen sensor chip is rectangular. Of course, based on other shapes of the oxygen sensor chip, the shape of the positioning hole 1223 can be adaptively adjusted, such as a cylindrical positioning hole 1223.

[0096] In some embodiments, as shown inFigure 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.

[0097] 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 into 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.

[0098] In this embodiment, the first detection member 128 can adopt devices such as an image acquisition device, an infrared sensor, etc. that can identify the position of the oxygen sensor chip.

[0099] On the other hand, the embodiment of the present invention also provides an oxygen sensor production line, including the oxygen sensor assembly device as described in the above embodiment.

[0100] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the knowledge scope of those of ordinary skill in the art to which the present invention pertains, various changes can be made without departing from the gist 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); The pressing assembly (123) comprises a first pressing assembly (125) and a second pressing assembly (126); the first pressing assembly (125) comprises a first elastic member (1251) and a first pressing block (1252); the second pressing assembly (126) comprises 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 arranged at an angle; The oxygen sensor chip positioning mechanism further comprises a linkage portion (127), and the first pressing block (1252) and the second pressing block (1262) are linked via the linkage portion (127), so that when one of the first pressing block (1252) and the second pressing block (1262) moves, the other one is driven to simultaneously approach or simultaneously move away from the oxygen sensor chip; 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); A conveying module (400) connected to the oxygen sensor loading module (200), the oxygen sensor chip loading module (100) and the oxygen sensor pressing module (300), and used for conveying the oxygen sensor; the conveying module (400) comprises a jig (410); 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.

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) 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 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. 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 8.

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