Tire pressure sensor assembling and detecting device

Abstract

The utility model relates to the field of tire pressure sensors, in particular to a tire pressure sensor assembly detection device which comprises an upper die, a lower die and a die assembly driving assembly, an upper die core and a lower die core are arranged in the upper die and the lower die respectively, a detection space is formed in the upper die core, an insertion space is formed in the lower die core, and a sensor body is embedded in the detection space. The air tap is inserted into the insertion space; an air inlet channel is formed in the upper die, one end of the air inlet channel communicates with the detection space, and the other end of the air inlet channel is connected with an air inlet pipe; an air outlet channel is formed in the lower die, one end of the air outlet channel is communicated with the inserting space and provided with a first sealing piece, and one end of the air nozzle abuts against and is in press fit with the first sealing piece and is in butt joint with one end of the air outlet channel; the other end of the air outlet channel is provided with the air outlet detection assembly, the air tap is inserted into the insertion space in an insertion mode, the tire pressure sensor is prevented from being fixed through threaded connection, the feeding and discharging speed is increased, and therefore the detection efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of tire pressure sensor, concretely relates to a tire pressure sensor assembly detection device. BACKGROUND

[0002] The assembly of the tire pressure sensor usually starts from the circuit board welding link, and the workers or automatic equipment will accurately weld various electronic components required by the sensor, such as microprocessors, pressure sensing chips, wireless communication modules, etc., on the pre-designed circuit board. After welding, preliminary circuit detection is carried out, and professional detection equipment is used to check whether there is a short circuit, open circuit or other faults on the circuit board, to ensure that the circuit functions normally and the sensor shell is assembled. The welded and detected qualified circuit board is placed in the pre-designed shell, and the shell and the air nozzle are assembled.

[0003] After the tire pressure sensor is assembled, the air tightness of the tire pressure sensor needs to be detected, but the conventional air tightness detection device on the market needs to threadedly connect the air nozzle and the detection device, which takes a long time to load and unload the tire pressure sensor, resulting in poor detection efficiency. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a tire pressure sensor assembly detection device, which aims at improving the problem that the conventional air tightness detection device needs to threadedly connect the air nozzle and the detection device, which takes a long time to load and unload the tire pressure sensor, resulting in poor detection efficiency.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A tire pressure sensor assembly detection device, the tire pressure sensor includes a sensor body and an air nozzle connected to each other, and includes an upper die, a lower die and a die clamping driving assembly, the driving end of the die clamping driving assembly is fixedly connected with the upper die;

[0007] The upper die and the lower die are respectively provided with an upper die core and a lower die core, a detection space is formed on the upper die core, and a plug-in space is formed on the lower die core, the sensor body is embedded in the detection space, and the air nozzle is plugged into the plug-in space;

[0008] An air inlet channel is formed on the upper die, one end of the air inlet channel is communicated with the detection space, and the other end of the air inlet channel is connected with an air inlet pipe; an air outlet channel is formed on the lower die, one end of the air outlet channel is communicated with the plug-in space and is provided with a first sealing element, one end of the air nozzle is abutted and pressed against the first sealing element, and the other end of the air outlet channel is connected with the air outlet detection assembly.

[0009] Further, the other end of the air inlet channel is provided with a three-way interface, one interface of the three-way interface is connected with the air inlet pipe, the other interface of the three-way interface is connected with an air pressure sensor, and the air pressure sensor and the sensor body are in communication connection with an external processor.

[0010] Further, the movable pin assembly is fixed in the upper die core, the movable pin assembly comprises a movable pin moving in the closing direction, and one end of the movable pin is arranged opposite to the other end of the air nozzle.

[0011] Further, the movable pin assembly further comprises a mounting seat, and the top of the mounting seat is fixed on the inner top surface of the detection space.

[0012] An active slot is formed in the top surface of the mounting seat, one end of the movable pin extends outward through the active slot, an elastic member is embedded in the active slot, the other end of the movable pin is provided with an outwardly extending eave, and the two sides of the eave are respectively in abutment with the slot bottom of the active slot and the elastic member.

[0013] Further, the slot opening of the active slot is provided with a guide block, a guide channel is formed in the guide block, the other end of the movable pin is provided with an outwardly extending guide section, the guide section is inserted into the guide channel, and the two ends of the elastic member are respectively in abutment with the guide block and the eave.

[0014] Further, a second sealing member is arranged between the upper die and the lower die, and the upper die core and the lower die core are enclosed by the second sealing member.

[0015] Further, an outwardly protruding boss is arranged on the upper die, a groove corresponding to the boss is arranged on the lower die, the boss is embedded in the groove, and the second sealing member is arranged around the boss.

[0016] Further, a third sealing member is arranged around the lower die core, and the third sealing member is interference-fitted between the lower die core and the lower die.

[0017] Further, a bottom plate is arranged, the bottom plate is fixed with oppositely arranged support plates, the closing drive assembly is fixed on the support plates, and the driving end of the closing drive assembly extends downward between the support plates.

[0018] A sliding assembly is arranged on the bottom plate, the sliding assembly is located between the support plates, and the lower die is movably arranged on the sliding assembly.

[0019] Further, the sliding assembly comprises oppositely arranged sliding rails and a sliding base movably arranged on the sliding rails, and the lower die is fixed on the sliding base.

[0020] A driving cylinder is fixed on the bottom plate, and the driving end of the driving cylinder is fixedly connected with the sliding base.

[0021] By adopting the above technical solution, this utility model has the following advantages compared with the prior art:

[0022] The mold closing drive assembly drives the upper mold to move towards the lower mold to close the mold; the sensor body and the air nozzle are enclosed in the detection space and the insertion space. The detection gas enters the detection space and the insertion space through the air inlet pipe and the air inlet channel. The first sealing element seals the insertion space and the air outlet channel to prevent the detection gas from being discharged from the air outlet channel, ensuring that the detection gas can only enter the air outlet channel from the end of the air nozzle, thereby improving the accuracy of detecting tire pressure sensor leakage; and the air nozzle is inserted into the insertion space in a plug-in manner, avoiding the use of threaded connections to fix the tire pressure sensor, improving the loading and unloading speed, and thus improving detection efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the tire pressure sensor assembly and detection device of this utility model;

[0024] Figure 2 This is a top view structural diagram of the tire pressure sensor assembly and detection device described in this utility model;

[0025] Figure 3 This is a schematic diagram of the tire pressure sensor assembly and detection device of this utility model along line AA.

[0026] Figure 4 This is an enlarged structural diagram of part A of the tire pressure sensor assembly and detection device described in this utility model;

[0027] Figure 5 This is an enlarged structural diagram of part B of the tire pressure sensor assembly and detection device described in this utility model;

[0028] Figure 6 This is a schematic diagram of the tire pressure sensor described in this utility model.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Upper mold; 11. Upper mold core; 111. Detection space; 12. Air inlet channel; 13. Air inlet pipe; 14. T-junction; 15. Air pressure sensor; 16. Movable pin assembly; 161. Pin; 1611. Protruding eaves; 1612. Guide section; 162. Mounting base; 1621. Movable groove; 163. Elastic element; 164. Guide block; 1641. Guide channel; 17. Boss; 171. Second seal;

[0031] 2. Lower mold; 21. Lower mold core; 211. Insertion space; 212. Third seal; 22. Exhaust channel; 23. First seal; 24. Exhaust detection assembly; 25. Groove;

[0032] 3, mold clamping drive assembly; 31, drive mounting plate; 32, mold clamping cylinder;

[0033] 4, base plate; 41, support plate; 42, sliding assembly; 421, sliding rail; 422, sliding base; 43, drive cylinder; 44, positioning block;

[0034] 5, tire pressure sensor; 51, sensor body; 52, air nozzle. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0036] In addition, it should be noted that: the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements of the utility model must have a specific orientation, therefore it cannot be understood as a limitation on the utility model.

[0037] When an element is referred to as "fixed to" or "provided with" or "provided in" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0038] Unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. EMBODIMENT

[0039] Please refer to Figures 1-6As shown, the embodiment provides a tire pressure sensor assembly detection device, the tire pressure sensor 5 includes a sensor body 51 and a gas nozzle 52 connected to each other, in the embodiment, the sensor body 51 and the gas nozzle 52 are fixedly connected by the bolt 53 penetrating the end of the sensor body 51 and the gas nozzle 52, realizing the connection of the gas nozzle 52 and the sensor body 51. Specifically, the tire pressure sensor 5 air tightness detection device includes an upper die, a lower die and a die driving assembly 3, and the driving end of the die driving assembly 3 is fixedly connected with the upper die. The upper die 1 and the lower die 2 are respectively provided with an upper die kernel 11 and a lower die kernel 21; the upper die kernel 11 is provided with a detection space 111, and the lower die kernel 21 is provided with a plug-in space 211. The sensor body 51 is embedded in the detection space 111, and the gas nozzle 52 is plugged in the plug-in space 211. The upper die 1 is provided with an air inlet channel 12, one end of the air inlet channel 12 is communicated with the detection space 111, and the other end of the air inlet channel 12 is connected with an air inlet pipe 13; the lower die 2 is provided with an air outlet channel 22, one end of the air outlet channel 22 is communicated with the plug-in space 211 and is provided with a first sealing member 23, one end of the gas nozzle 52 is abutted and pressed with the first sealing member 23, and the other end of the air outlet channel 22 is abutted with the gas nozzle 52; the other end of the air outlet channel 22 is provided with an air outlet detection assembly 24.

[0040] The die driving assembly 3 drives the upper die 1 to move towards the lower die 2, and the die is closed; the sensor body 51 and the gas nozzle 52 are enclosed in the detection space 111 and the plug-in space 211, the detection gas enters the detection space 111 and the plug-in space 211 through the air inlet pipe 13 and the air inlet channel 12, the first sealing member 23 seals the plug-in space 211 and the air outlet channel 22, avoiding the detection gas from being discharged from the air outlet channel 22, ensuring that the detection gas can only enter the air outlet channel 22 from the end of the gas nozzle 52, improving the accuracy of detecting the air leakage of the tire pressure sensor 5; and the gas nozzle 52 is plugged in the plug-in space 211 in a plug-in manner, avoiding the use of threaded connection to fix the tire pressure sensor 5, improving the feeding and discharging rate, and thus improving the detection efficiency. In the embodiment, the detection gas is helium, and the helium in the air outlet channel 22 of the air outlet detection assembly 24 is detected, so as to confirm whether the air tightness of the tire pressure sensor 5 is qualified.

[0041] Please refer to Figure 3As shown, the other end of the air inlet channel 12 is provided with a three-way interface 14, one interface of the three-way interface 14 is connected with the air inlet pipe 13, the other interface of the three-way interface 14 is connected with an air pressure sensor 15, the air pressure sensor 15 and the sensor body 51 are in communication connection with an external processor. The air pressure sensor 15 is in communication with the air inlet channel 12, detects the internal air pressure of the detection space 111 and the plug-in space 211 through the air inlet channel 12, and transmits the detection result to the external processor; while the sensor body 51 of the tire pressure sensor 5 is in the internal of the detection space 111 and the plug-in space 211, and detects the air pressure in the detection space 111 and the plug-in space 211 at the same time, simulates the working environment in the tire, generates pressure information and transmits it to the external processor, the external processor compares the detection information of the sensor body 51 and the air pressure sensor 15, confirms the accuracy of the detection result of the tire pressure sensor 5, realizes the synchronous detection of the working condition of the tire pressure sensor 5 in the air tightness detection process, shortens the subsequent product qualification detection process, and further improves the production efficiency of the tire pressure sensor 5.

[0042] Please refer to Figure 3 and Figure 4 As shown, further, the upper die core 11 is fixed with a movable pin assembly 16, the movable pin assembly 16 includes a pin 161 moving in the closing direction, one end of the pin 161 is arranged opposite to the other end of the air nozzle 52. In the closing process, the pin 161 is driven by the upper die 1 to move downward, and abuts against the other end of the air nozzle 52, applies a pushing force to the air nozzle 52 in the direction of the first sealing element 23, ensures the tightness of the abutting contact between the air nozzle 52 and the first sealing element 23, and improves the sealing effect of the first sealing element 23 on the plug-in space 211. At the same time, the width of the plug-in space 211 matches the width of the air nozzle 52, so that the outer side of the air nozzle 52 is in close contact with the side wall of the plug-in space 211, under the driving of the pin 161, it is ensured that the end of the air nozzle 52 can completely enter the plug-in space 211 and be in close contact with the plug-in space 211, and the accuracy of the position of the air nozzle 52 in the detection state is ensured.

[0043] Specifically, the movable pin assembly 16 further comprises a mounting seat 162, the top of the mounting seat 162 is fixed on the inner top surface of the detection space 111, and in the embodiment, the top of the mounting seat 162 is fixedly connected with the inner top surface of the detection space 111 through bolts. An active slot 1621 is formed in the top surface of the mounting seat 162, one end of the pin 161 extends outward through the active slot 1621, and an elastic member 163 is embedded in the active slot 1621. The other end of the pin 161 is provided with an outwardly extending eave 1611, and the two sides of the eave 1611 are respectively in abutment with the slot bottom of the active slot 1621 and the elastic member 163. The active slot 1621 provides a movable space for the pin 161, and when the air nozzle 52 abuts against the pin 161, the air nozzle 52 provides a counterforce in the opposite direction to the pin 161, drives the air nozzle 52 to move upward and compresses the elastic member 163. The elastic member 163 simultaneously provides a pushing force for the pin 161 in the direction of the air nozzle 52, ensures that the pin 161 can provide a stable pushing force for the air nozzle 52, and avoids that the pushing force is too large to damage the air nozzle 52. In the embodiment, the elastic member 163 is a spring. Further, the end of the pin 161 abuts against the bolt 53, avoiding that the pin 161 directly abuts against the end of the air nozzle 52 to damage the air nozzle 52, and the hardness of the bolt 53 is relatively high, and the movable space provides a reverse movement space for the pin 161, so that the abutment between the pin 161 and the bolt 53 will not damage the tire pressure sensor 5. Figure 3 and Figure 5 , the end of the pin 161 abuts against the bolt 53, avoiding that the pin 161 directly abuts against the end of the air nozzle 52 to damage the air nozzle 52, and the hardness of the bolt 53 is relatively high, and the movable space provides a reverse movement space for the pin 161, so that the abutment between the pin 161 and the bolt 53 will not damage the tire pressure sensor 5.

[0044] The slot opening of the active slot 1621 is provided with a guide block 164, the guide block 164 is provided with a guide channel 1641, the other end of the pin 161 is provided with an outwardly extending guide segment 1612, the end of the guide segment 1612 is inserted into the guide channel 1641, and the two ends of the elastic member 163 are respectively in abutment with the guide block 164 and the eave 1611. The guide block 164 guides the guide segment 1612 of the pin 161, thereby guiding the retraction process of the pin 161, ensuring that the pin 161 also moves in the extension direction of the air nozzle 52 during the retraction process, avoiding that the pin 161 moves deviatedly to cause an oblique force applied to the air nozzle 52, and damaging the air nozzle 52.

[0045] Please refer to Figure 3 and Figure 5As shown, a second sealing member 171 is arranged between the upper die 1 and the lower die 2, and the upper die core 11 and the lower die core 21 are enclosed in the second sealing member 171. In the embodiment, the second sealing member 171 is a sealing ring, which seals the die closing position of the upper die core 11 and the lower die core 21, avoids the detection gas from leaking from the die closing position, and affects the accuracy of the air tightness test of the tire pressure sensor 5. Further, the upper die 1 is provided with an outwardly protruding boss 17, the lower die 2 is provided with a groove 25 corresponding to the boss 17, the boss 17 is embedded in the groove 25, and the second sealing member 171 is arranged around the side of the boss 17. The bottom surface of the upper die core 11 is flush with the bottom surface of the boss 17, and the top surface of the lower die core 21 is flush with the bottom of the groove 25. The boss 17 and the groove 25 increase the contact area between the upper die 1 and the lower die 2, and the sealing effect of the second sealing member 171.

[0046] Further, the lower die core 21 is provided with a third sealing member 212, which is interference fitted between the lower die core 21 and the lower die 2. In the embodiment, the third sealing member 212 is a sealing ring, which seals the gap between the lower die core 21 and the lower die 2, avoids the detection gas from entering the gas outlet channel 22 through the gap between the lower die core 21 and the lower die 2, and affects the detection accuracy of the air tightness of the tire pressure sensor 5.

[0047] Please refer to Figures 1-3 Further, the air tightness detection device of the tire pressure sensor 5 further comprises a bottom plate 4, the bottom plate 4 is fixed with oppositely arranged support plates 41, and the die closing driving assembly 3 is fixed on the support plates 41. The driving end of the die closing driving assembly 3 extends downward between the support plates 41, i.e. the upper die 1 is located between the support plates 41. The bottom plate 4 is provided with a sliding assembly 42, the sliding assembly 42 is located between the support plates 41, and the lower die 2 is movably arranged on the sliding assembly 42. The sliding assembly 42 drives the lower die 2 to slide, in the feeding and discharging process, the sliding assembly 42 drives the lower die 2 to move out of the support plates 41, which facilitates the feeding and discharging of the tire pressure sensor 5 in the lower die 2; in the detection process, the sliding assembly 42 drives the lower die 2 to move between the upper die 1, the die closing driving assembly 3 drives the upper die 1 to move downward to close with the lower die 2, and the air tightness detection process is performed; and the convenience of feeding and discharging the tire pressure sensor 5 is effectively improved. In the embodiment, the die closing driving assembly 3 comprises a die closing cylinder 32 and a driving mounting plate 31, the driving mounting plate 31 is fixed on the support plates 41, the die closing cylinder 32 is fixed on the driving mounting plate 31, the driving end of the die closing cylinder 32 extends downward through the driving mounting plate 31 and is fixedly connected with the upper die 1, and the opening and closing of the upper die 1 is driven.

[0048] Specifically, the sliding assembly 42 comprises a slide rail 421 arranged oppositely and a sliding base 422 movably arranged on the slide rail 421, and the lower mold 2 is fixed on the sliding base 422. A driving cylinder 43 is fixed on the bottom plate 4, and a driving end of the driving cylinder 43 is fixedly connected with the sliding base 422. The driving cylinder 43 drives the sliding base 422 to move on the slide rail 421, so as to realize horizontal driving of the lower mold 2.

[0049] Further, the slide rail 421 is provided with a positioning block 44 at both ends, the height of the positioning block 44 corresponds to the sliding base 422, the positioning block 44 is arranged at both ends of the slide rail 421 to form positioning for the sliding base 422, so that the sliding base 422 carrying the lower mold 2 can be accurately stopped below the upper mold 1, and in the process of feeding and discharging, the lower mold 2 is prevented from moving to a too far position, so as to avoid affecting the detection efficiency.

[0050] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A tire pressure sensor assembly inspection apparatus, the tire pressure sensor comprising a sensor body and a valve stem connected to each other, characterized by, It includes an upper mold, a lower mold, and a mold closing drive assembly, wherein the drive end of the mold closing drive assembly is fixedly connected to the upper mold; The upper mold and the lower mold are respectively provided with an upper mold core and a lower mold core. The upper mold core has a detection space and the lower mold core has an insertion space. The sensor body is embedded in the detection space and the air nozzle is inserted into the insertion space. The upper mold has an air inlet channel, one end of which is connected to the detection space, and the other end of which is connected to an air inlet pipe; the lower mold has an air outlet channel, one end of which is connected to the insertion space and is provided with a first sealing element, one end of which abuts against and presses against the first sealing element and connects with one end of the air outlet channel; the other end of the air outlet channel is provided with an air outlet detection component.

2. The tire pressure sensor assembly inspection apparatus according to claim 1, characterized by: The other end of the air intake channel is provided with a three-way interface. One interface of the three-way interface is connected to the air intake pipe, and the other interface of the three-way interface is connected to a pressure sensor. The pressure sensor and the sensor body are connected to an external processor for communication.

3. The tire pressure sensor assembly inspection apparatus of claim 1, wherein: The upper mold core is fixed with a movable pin assembly, which includes a pin that moves along the mold closing direction, with one end of the pin facing the other end of the air nozzle.

4. The tire pressure sensor assembly detection apparatus according to claim 3, characterized by: The movable pin assembly also includes a mounting base, the top of which is fixed to the inner top surface of the detection space; The mounting base has a movable groove on its top surface. One end of the pin extends outward through the movable groove. An elastic element is embedded in the movable groove. The other end of the pin has an outwardly extending eave on its periphery. The two sides of the eave abut against the bottom of the movable groove and the elastic element, respectively.

5. The tire pressure sensor assembly detection apparatus of claim 4, wherein: The slot of the movable groove is provided with a guide block, and a guide channel is provided on the guide block. The other end of the pin is provided with an outwardly extending guide section. The end of the guide section is inserted into the guide channel. The two ends of the elastic element abut against the guide block and the top of the convex eave, respectively.

6. The tire pressure sensor assembly detection apparatus of claim 1, wherein: A second sealing element is provided between the upper mold and the lower mold, which encloses the upper mold core and the lower mold core.

7. The tire pressure sensor assembly detection apparatus of claim 6, wherein: The upper mold has an outwardly protruding boss, and the lower mold has a groove corresponding to the boss. The boss is embedded in the groove, and the second sealing element is circumferentially disposed around the boss.

8. The tire pressure sensor assembly detection apparatus of claim 1, wherein: A third sealing element is provided on the periphery of the lower mold core, and the third sealing element is interference-fitted between the lower mold core and the lower mold.

9. The tire pressure sensor assembly detection apparatus of claim 1, wherein: It also includes a base plate, on which a support plate is fixedly disposed opposite, the mold closing drive assembly is fixed on the support plate, and the drive end of the mold closing drive assembly extends downward to the space between the support plates; The base plate is provided with a sliding component, which is located between the support plates, and the lower mold is movably mounted on the sliding component.

10. The tire pressure sensor assembly detection apparatus of claim 9, wherein: The sliding assembly includes a slide rail disposed opposite to each other and a sliding base movably disposed on the slide rail, and the lower mold is fixed on the sliding base; A drive cylinder is fixed on the base plate, and the drive end of the drive cylinder is fixedly connected to the sliding base.

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