CN110763408B

CN110763408B - Direct transmission group gas tightness detection mechanism

Info

Publication number: CN110763408B
Application number: CN201911134520.0A
Authority: CN
Inventors: 陈又; 寇明林; 曾勇; 肖楠; 吕东红; 梁睿; 罗丰华; 孙晏和; 张鹏; 白福川
Original assignee: Chongqing Qianwei Technologies Group Co Ltd
Current assignee: Shenzhen Ruili Technology Co ltd
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2021-07-23
Anticipated expiration: 2039-11-19
Also published as: CN110763408A

Abstract

The invention discloses a mechanism for detecting the air tightness of a direct transmission set, which is characterized in that: comprises an air tightness detection seat and a compression structure; the upper surface of the air tightness detection seat is provided with a detection slot, an annular step is arranged in the detection slot, and the upper surface of the annular step is provided with a sealing gasket; the surface of the air tightness detection seat is provided with an inflation interface communicated with the sealing cavity; the pressing structure comprises a supporting column for pressing, a cylinder for pressing and a pressing block; the lower end of the supporting column for compaction is fixed at a position close to the air tightness detection seat; compress tightly with the cylinder vertical fix compress tightly with upper end and push rod down, the last fixed mounting of push rod has the briquetting, the lower extreme of briquetting has the portion of compressing tightly, the portion of compressing tightly is used for compressing tightly the direct drive group that inserts to detecting with the slot to make the annular arch of the axle sleeve of direct drive group support tight seal ring and realize sealing. The direct transmission set air tightness detection mechanism has the advantages of simple and compact structure and easiness in matching with a manipulator to realize automatic charging and detection.

Description

Direct transmission group gas tightness detection mechanism

Technical Field

The invention belongs to the field of gas meters, and particularly relates to a mechanism for detecting the gas tightness of a direct transmission set.

Background

The diaphragm gas meter is mainly composed of a metering part (comprising two metering boxes respectively internally provided with flexible diaphragms), a transmission part (comprising a diaphragm plate, a folded plate, a vertical shaft, a rocker arm, a connecting rod, a crank, a shifting fork and a valve cover), a counting part and a shell.

The working principle of the membrane type gas meter is as follows: a diaphragm (typically made of elastomer) is sealingly mounted at the centerline within each metering box and separates the interior of the metering box into two metering chambers. After entering the gas meter, the gas enters the two metering gas chambers of each metering box alternately, so that the diaphragm (and the diaphragm plate wrapped and clamped on the diaphragm) makes reciprocating motion, and then the linkage is realized, namely the diaphragm plate drives the folded plate (the outer end of the folded plate), the folded plate (the sleeve part at the inner side) drives the vertical shaft, the vertical shaft drives the rocker arm, the rocker arm drives the connecting rod, the connecting rod drives the crank, and the cam on the crank drives the shifting fork to make the valve cover make reciprocating motion on the valve grid and alternately open the gas inlets of the two metering gas chambers of each metering box (the reciprocating motion of the valve grid can make the gas enter the two metering gas chambers of each metering box alternately). Therefore, the gas in the volumes of the two metering boxes (four metering air chambers) can be discharged by one-time circulation, the crank rotates and drives the gear of the counter to rotate, and the counter displays the volume of the discharged gas.

The patent of publication number CN208238869U in the prior art is a novel magnetic transmission device on a membrane type gas meter, and the novel magnetic transmission device on the membrane type gas meter is the mainstream transmission device at present. However, the technical scheme still has the following defects:

the magnetic transmission device drives the inner magnetic sleeve to rotate through the rotation of the outer magnetic sleeve, so that the rotational kinetic energy is output outwards, however, the magnetic transmission device has more components, is complex in assembly and transmission among the components, and needs to adopt the outer magnetic sleeve to be sleeved outside the inner magnetic sleeve, so that the defects of larger weight, larger volume and difficulty in miniaturization exist, and meanwhile, the outer magnetic sleeve and the inner magnetic sleeve are magnets, so that the magnetic transmission device is not resistant to strong magnetic interference, and the situation of poor transmission precision is easy to occur in a magnetic environment; in addition, the error (gas stealing phenomenon) of the measurement of the instrument is easy to occur due to the artificial magnetic environment.

Based on this, the applicant considers that a direct transmission set is adopted for transmission, the direct transmission set directly utilizes a shaft sleeve provided with a transmission shaft for transmission, a deflector rod is fixedly arranged at one end of the transmission shaft, a connecting piece is fixedly arranged at the other end of the transmission shaft, and a dynamic sealing structure is arranged in the shaft sleeve. The direct transmission set has fewer components and smaller volume, and can better realize miniaturization.

No matter the product is assembled by adopting manual assembly or automatic assembly devices, the quality of the direct transmission set needs to be effectively detected before the product leaves a factory, wherein the air tightness of the direct transmission set directly concerns the use safety of the product and is a key index needing to be detected.

Therefore, how to effectively detect the air tightness of the direct transmission set is a technical problem to be solved.

Disclosure of Invention

Aiming at the defects of the prior art, the technical problems to be solved by the invention are as follows: how to provide a can carry out the effective detection direct drive group gas tightness detection mechanism of gas tightness to the direct drive group.

In order to solve the technical problems, the invention adopts the following technical scheme:

direct drive group gas tightness detection mechanism, its characterized in that: comprises an air tightness detection seat and a compression structure;

the lower end of the air tightness detection seat is a fixed mounting surface, the upper surface of the air tightness detection seat is provided with a detection slot, an annular step is arranged in the detection slot, and the upper surface of the annular step is provided with a sealing gasket; the detection slot is used for inserting the direct transmission set and enabling an annular bulge on a shaft sleeve of the direct transmission set to be lapped on the sealing gasket of the annular step, so that a sealing cavity is formed in the detection slot below the annular bulge on the shaft sleeve of the direct transmission set;

the surface of the air tightness detection seat is provided with an inflation interface communicated with the sealing cavity; the inflation interface is used for being connected with a gas pipe provided with a control valve and a hydraulic sensor in a sealing way;

the pressing structure comprises a supporting column for pressing, a cylinder for pressing and a pressing block; the lower end of the supporting column for pressing is fixed at a position close to the air tightness detection seat; the compressing cylinder is vertically fixed at the upper end for compressing tightly and the push rod faces downwards, the pressing block is fixedly mounted on the push rod, the pressing part is arranged at the lower end of the pressing block and used for compressing a direct transmission set inserted into the detection slot, and an annular bulge of a shaft sleeve of the direct transmission set is tightly abutted to the sealing washer to realize sealing.

The direct transmission set airtightness detection mechanism has the advantages that:

1. the direct transmission assembly device has the advantages that the structure is simple and compact, the direct transmission assembly device can be directly arranged and installed on an assembly table of the direct transmission assembly, the assembly and detection efficiency is improved, and the product quality of the direct transmission assembly is ensured more effectively and efficiently.

2. The operation and the use are convenient, and the direct transmission set is only needed to be placed into the detection slot of the air tightness detection seat, so that the automatic loading and the detection can be realized by being matched with the mechanical arm easily.

Drawings

Fig. 1 is a schematic structural diagram of a direct drive set in the present technical solution (the shaft sleeve is assembled and fixed by screw thread).

Fig. 2 is a schematic structural diagram of the direct drive unit in the present technical solution (the shaft sleeve is assembled and fixed by riveting).

Fig. 3 is a schematic perspective view of the direct drive unit assembling apparatus according to the present embodiment.

Fig. 4 is a top view of the direct drive assembly of the present embodiment.

Fig. 5 is a top view of the mounting seat in the direct drive assembly mounting apparatus of the present solution.

Fig. 6 is a sectional view taken along line a-a of fig. 5.

Fig. 7 is a schematic structural view of a vibration plate and a universal material receiving positioning seat in the direct transmission assembly device in the technical scheme.

Fig. 8 is an enlarged view at I of fig. 7.

Fig. 9 is a schematic structural diagram of a universal transplanting mechanism in the direct drive assembly device in the present technical solution.

Fig. 10 is a schematic structural view of the vacuum suction head for transplantation in the direct drive assembly apparatus according to the present embodiment.

Fig. 11 is a schematic structural view of a vibrating plate adopted by the cup assembly mechanism in the technical scheme.

Fig. 12 is a plan view of the upper drive shaft assembly mechanism according to the present embodiment.

Fig. 13 is a schematic perspective view of a transmission shaft assembly mechanism according to the present embodiment.

Fig. 14 is an enlarged view at II in fig. 13.

Fig. 15 is a schematic structural view of the material receiving positioning seat for the transmission shaft in the technical scheme (in fig. 14, in the X direction, the material receiving slider is retracted).

Fig. 16 is a schematic structural view of the material receiving positioning seat for the transmission shaft in the technical scheme (in fig. 14, in the X direction, the material receiving slider extends out).

Fig. 17 is a schematic structural view of the transplanting mechanism for the transmission shaft in the technical scheme (with the material receiving slider extended).

Fig. 18 is a schematic structural view of a lubricating medium coating structure for a shaft sleeve in the technical scheme.

Fig. 19 is a schematic structural diagram of a torque detection mechanism of the direct drive unit according to the present disclosure.

Fig. 20 is a schematic structural diagram of a torque detection mechanism of the direct drive unit according to the present disclosure.

Fig. 21 is an enlarged view at III in fig. 20.

Fig. 22 is a schematic structural diagram of the air tightness detection mechanism of the direct drive unit in the present technical solution.

Fig. 23 is a schematic structural diagram of a blanking structure of the direct drive unit airtightness detection mechanism in the present technical solution.

Labeled as:

a direct drive group: 1, a shaft sleeve, 2 connecting pieces, 3 leather cups, 4 end covers, 5 deflector rods and 6 transmission shafts;

direct drive group assembly quality: 100 assembly tables, 101 assembly turntables, 102 assembly seats, 103 connecting piece assembly mechanisms, 104 shaft sleeve assembly mechanisms, 105 leather cup assembly mechanisms, 106 end cover assembly mechanisms, 107 transmission shaft assembly mechanisms, 108 deflector rod assembly mechanisms, 109 static flat plates, universal material receiving positioning seats (1101 guide grooves, 1102 material receiving grooves, 1103 material receiving mounting plates, 1104 material receiving end plates, 1105 material receiving transverse moving cylinders, 1106 limiting columns, 1107 material receiving sliding blocks and 1108 hydraulic buffers), universal transplanting mechanisms (1111 transplanting transverse moving cylinders, 1112 transplanting lifting cylinders, 1113 transplanting vacuum suction heads, 1114 transplanting mounting plates and 1115 transplanting end plates) and 112 air blowing pipes;

107 transmission shaft assembly devices: 200 of a first conveying pipe, 201 of a receiving positioning seat (2011 of a base, 2012 of a receiving assembly (20121 of a receiving lug, 20122 of a receiving slider, 20123 of a receiving slider, 20124 of a jacking cylinder for a transmission shaft and 20125 of a jacking point), 202 of a transplanting mechanism for a transmission shaft (2021 of a transverse moving cylinder for transplanting of the transmission shaft, 2022 of a lifting cylinder for transplanting of the transmission shaft and 2023 of an air claw for transplanting of the transmission shaft), 203 of a bypass discharging channel, 204 of a second conveying pipe and 205 of a roller;

300 lubricating medium coating mechanism: 301 extending and swinging cylinder, 302 cantilever and 303 lubricating medium injector;

400 direct drive set torque detection mechanism: a rotary driver (401 rotating the rod, 402 outer magnetic sleeve, 403 inner magnetic sleeve, 404 coupling, 405 assembling tube, 406 assembling column, 407 connecting turntable, 408 detecting lug);

500 direct drive group gas tightness detection mechanism: 5001 air tightness detection seat and a compression structure (5011 compression supporting column, 5012 compression cylinder and 5013 pressing block); the automatic feeding device comprises a feeding structure (a support column for 5021 feeding, a rodless cylinder for 5022 feeding, a lifting cylinder for 5023 feeding, a gas claw for 5024 feeding), a deflector rod driving structure (a 5031 motor), a feeding structure for 504 airtightness detection (a rotary disc for 5041 detection, a support column for 5042 feeding, a rodless cylinder for 5043 feeding, a lifting cylinder for 5044 feeding, a vacuum suction head for 5045 feeding) and an inflating structure (a 5051 inflator pump and a 5052 inflating cylinder).

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A

As shown in fig. 1 and 2: the direct transmission set comprises a transmission shaft 6, a shaft sleeve 1, a dynamic sealing structure, a connecting piece 2 and a deflector rod 5;

the transmission shaft 6 is rotatably inserted in the shaft sleeve 1; one axial end of the transmission shaft 6 is a transmission input end, and the other axial end of the transmission shaft is a transmission output end; the driving input end is fixedly provided with the driving lever 5, and the driving lever 5 is provided with a radially outward convex driving part along the driving shaft 6; the transmission output end is coaxially and fixedly provided with the connecting piece 2;

the position that is close to the transmission input end in the shaft sleeve 1 is provided with the dynamic seal structure, the surface of the shaft sleeve 1 is provided with a shaft sleeve 1 assembling and fixing structure.

The direct drive set has the advantages that:

1. the mechanical transmission is reliable and the transmission energy loss is less.

2. The gas meter has fewer components and a more simplified structure, is easier to manufacture and helps to reduce the manufacturing cost of the gas meter.

3. The structure is more compact, can realize the miniaturization, and the help reduces the volume of gas table, promotes the compactedness of gas table structure to more do benefit to the storage of gas table, transportation and the installation or the change at the scene.

4. And (4) no magnetic part is used for resisting magnetic interference.

Wherein the dynamic sealing structure comprises an annular sealing cavity formed around the transmission shaft 6 at the inner side of the shaft sleeve 1;

the dynamic sealing structure further comprises a leather cup 3 which is made of elastic materials and is positioned in the annular sealing cavity, the leather cup 3 is integrally of a circular ring-shaped structure sleeved on the transmission shaft 6, the edge of the inner side of the leather cup 3 in the radial direction extends along the axial direction of the transmission shaft 6 and protrudes outwards towards the direction close to the shifting rod 5 to form a conical sleeve, the inner side of the conical sleeve is connected with the surface of the transmission shaft 6 in a sealing contact mode to form sealing, the edge of the outer side of the leather cup 3 in the radial direction is abutted to the side of the annular sealing cavity, the leather cup 3 integrally extends along the axial direction of the transmission shaft 6 and protrudes outwards towards the direction close to the shifting rod 5 to form a cylindrical sleeve.

In practice, the elastic material is rubber or silicone.

After the dynamic sealing structure is adopted, the weight of the shaft sleeve 1 and manufacturing materials can be reduced through the annular sealing cavity; better sealing can be realized through the leather cup 3, namely the conical sleeve at the radial inner side end of the leather cup 3 is connected with the surface of the transmission shaft 6 in a compression joint mode to realize sealing, and the cylindrical sleeve at the radial outer side end of the leather cup 3 is connected with the side face of the annular sealing cavity in a bonding mode to realize sealing.

In addition, when the end surface of the leather cup 3, which is close to the deflector rod 5 in the axial direction, bears the action of gas pressure, the gas pressure forms pushing pressure and further enhances the pressing force between the conical sleeve of the leather cup 3 and the transmission shaft 6, and the pressing force between the cylindrical sleeve of the leather cup 3 and the side surface of the annular sealing cavity is enhanced, so that the reliable sealing effect under the working condition is ensured; the gas leakage is avoided more effectively and reliably.

The end side surface of the leather cup 3, which is axially away from the deflector rod 5, and the inner side surface of the annular sealing cavity and the outer side surface of the transmission shaft 6 jointly enclose a lubricating cavity, and a lubricating medium is filled in the lubricating cavity.

The lubricating cavity can be filled with a lubricating medium, so that the transmission shaft 6 can obtain a better lubricating effect, the rotating friction resistance is reduced, more accurate and reliable kinetic energy transmission is realized, and the metering reliability and precision of the gas meter are ensured.

In addition, after the lubricating medium is filled into the lubricating cavity, the lubricating medium can also provide certain pressure for the axial end face of the leather cup 3, and the phenomenon that the leather cup 3 turns outwards under high-pressure impact to form a gap losing the sealing effect is avoided.

Wherein, one end of the cavity for annular sealing, which is close to the transmission input end of the transmission shaft 6, is an open end;

the dynamic sealing structure further comprises an end cover 4, the end cover 4 is provided with an inserting part and an abutting part, the inserting part is a cylindrical structure which is sleeved outside the transmission shaft 6, and the outer side surface of the inserting part is inserted into the opening end in an interference fit manner; the abutting part is a circular plate-shaped structure which is positioned at the end part of the inserting part and the end surface of which abuts against the end surface of the shaft sleeve 1.

In practice, the end cap 4 is made of a material with a small friction coefficient, wear resistance and high hardness (e.g., PETP plastic, graphite, polyoxymethylene resin or acrylic); and the inner side hole wall of the end cover 4 is jointed with the surface of the transmission shaft 6. Like this, not only the inboard pore wall of accessible end cover 4 forms the rotation support of transmission shaft 6, can also form sealed face through the contact between the inboard pore wall of end cover 4 and the transmission shaft 6 surface, effectively avoids gas pressure direct impact leather cup 3 to cause sealed inefficacy, obtains multiple sealed effect.

When the sealing device is implemented, the end part of the insertion part of the end cover 4 is pushed against and enables the axial end face of the leather cup 3 to be attached to the step end face of the annular sealing cavity, so that the leather cup 3 can obtain a better positioning effect.

Can form spacingly to leather cup 3 after adopting above-mentioned end cover 4, avoid leather cup 3 to deviate from annular is sealed with the cavity, ensure that leather cup 3 can lasting reliable formation is sealed.

In addition, the starting of the end cover 4, together with the transmission shaft 6 and the inner wall of the shaft sleeve 1, can form a sealed cavity for injecting and storing a sealing medium, so as to further improve and ensure the lubricating property of the rotation of the transmission shaft 6.

The inner side edge of the end face of one end, close to the connecting piece 2, of the shaft sleeve 1 in the axial direction is concavely formed with an annular cavity for assembly, and the transmission output end of the transmission shaft 6 is positioned in the annular cavity for assembly;

the connecting piece 2 is integrally of a long strip-shaped structure and is provided with two sections in the length direction, wherein one section is an insertion assembly section, and the other section is an external connection section; the whole inserting assembly section is of a cylindrical structure, and the inserting assembly section is fixedly sleeved on the transmission output end of the transmission shaft 6 and is positioned in the annular cavity for assembly; the external connection section extends out of the annular cavity for assembly.

The advantage of adopting above-mentioned structure is:

1. while ensuring functional integrity, helps to shorten the overall product length.

2. The part of the connecting piece 2 fixedly connected with the transmission shaft 6 is positioned in the annular cavity for assembly, so that the side surface of the annular cavity for assembly can be used for protecting the connected part, and the reliability of the structure is better ensured.

Wherein, the part that lies in on the lateral surface of connecting piece 2 and inserts between assembly section and the external section is formed with the round along radial evagination and shelters from and uses the bulge loop, just shelter from and shelter from with the bulge loop annular cavity for the assembly.

Thus, the convex ring for shielding not only can play the role of a reinforcing rib, but also can enhance the integral structural strength of the connecting piece 2; the difficulty of dust entering the annular cavity for assembly can be increased, so that a better dustproof effect is achieved, and the transmission reliability of the transmission shaft 6 is ensured.

Wherein, the connecting section of the connecting piece 2 is provided with an external thread screwed along the rotating direction of the transmission shaft 6.

Therefore, reliable connection between the parts, connected with the connecting piece 2, on the gas meter counter can be durably and effectively ensured.

The shifting rod 5 is also provided with a cylindrical sleeved fixing part, and the shifting part of the shifting rod 5 is fixedly arranged on the outer side of the sleeved fixing part; the sleeving fixing part is sleeved and fixed at the transmission input end of the transmission shaft 6.

In implementation, the transmission output end and the transmission input end of the transmission shaft 6 are provided with knurls on the side surfaces. This improves the security of the connection.

The structure of the shift lever 5 can ensure that the shift lever 5 and the transmission output end of the transmission shaft 6 can be directly pressed and assembled, thereby reducing the assembly difficulty and improving the assembly efficiency.

A section of the shaft sleeve 1, which is close to the connecting piece 2 in the axial direction, is a threaded connection section with external threads on the outer part, and the threaded connection section forms an assembly and fixing structure of the shaft sleeve 1;

and a convex ring for lapping is convexly formed at the position, adjacent to the threaded connection section, of the outer side surface of the shaft sleeve 1, and an annular groove for embedding an O-shaped sealing ring is formed in the end surface, close to the threaded connection section, of the convex ring for lapping.

The convex ring for lap joint not only can play the role of a reinforcing rib and enhance the structural strength of the shaft sleeve 1; above-mentioned bulge loop for overlap joint can also accomplish fixed assembly back at 1 threaded connection section of axle sleeve, with the plane laminating contact that corresponds to realize the sealed of this contact surface through O shape sealing washer, play the effect that better gas leakage was put, the security and the reliability of using are guaranteed better.

In practice, the connecting element 2 and the driver 5 are made of plastic (e.g., polyoxymethylene). Can help reducing the weight of direct drive group like this, also reduce the required moment of drive transmission shaft 6 rotation for transmission shaft 6 is changeed the drive, improves the precision and the promptness of transmission response.

The direct transmission set is vertically assembled and formed, and the connecting piece 2, the shaft sleeve 1, the dynamic sealing structure, the transmission shaft 6 and the deflector rod 5 are sequentially arranged from bottom to top during assembly.

After the assembly method is adopted, the direct transmission set can be assembled more easily, the assembly device can be conveniently adopted for automatic assembly production, the production efficiency of the product is improved, and the production cost is reduced.

II

As shown in fig. 3 to 23: the direct transmission set assembling device comprises an assembling table 100 and an assembling turntable 101, wherein the assembling turntable 101 is fixedly arranged on the table top of the assembling table 100 in a horizontally rotatable manner, and the assembling turntable 101 is provided with a driving motor; an assembly seat 102 is fixedly arranged on the upper surface of the assembly turntable 101; the assembly seat 102 can be used for sequentially mounting the connecting piece and the shaft sleeve of a single direct transmission set from top to bottom and realizing supporting and positioning;

the six assembling mechanisms are a connecting piece assembling mechanism 103, a shaft sleeve assembling mechanism 104, a leather cup assembling mechanism 105, an end cover assembling mechanism 106, a transmission shaft assembling mechanism 107 and a shifting rod assembling mechanism 108 which are sequentially arranged along the rotating direction of the assembling turntable 101; the six assembling mechanisms are fixedly installed on the table surface of the assembling table 100 on the periphery of the assembling turntable 101 and form six loading points, and the six loading points are located on the rotation track of the axis point of the assembling seat 102 after the rotating of the assembling turntable 101;

each assembling mechanism comprises a vibrating disc, a material receiving positioning seat and a transplanting mechanism; the vibration disc is used for conveying parts stored inside to the material receiving positioning seat one by one, and the transplanting mechanism is used for conveying the parts in the material receiving positioning seat to an adjacent material loading point and loading the parts into the assembling seat 102.

The direct transmission assembly device has the advantages that:

1. the assembly of the direct transmission group can be automatically completed, continuous production without shutdown is realized, and the production efficiency and the yield can be ensured.

2. Each part of the direct transmission set has small volume, the consistency of manual assembly is not good, and the labor intensity is high. After the direct transmission assembly assembling device is adopted, the assembling consistency can be better ensured, the labor intensity is reduced, and the safety of the assembling operation is ensured.

The assembly base 102 is of a cylindrical structure with an open upper end, a step hole is formed in the cylindrical structure of the assembly base 102, the step surface of the step hole can be used for placing the lower end surface of the connecting piece and the lower end surface of the shaft sleeve and forming vertical support, and the side surface of the step hole can be in contact connection with the side surface of the connecting piece and the side surface of the shaft sleeve and forming transverse positioning.

The assembly seat 102 can form vertical support and transverse positioning for the connecting piece and the shaft sleeve, so that a precise preparation foundation is formed, and the assembly precision of each construction can be better ensured.

Each loading point position is also provided with an assembly seat 102 in-place detection mechanism in a matched manner, and the assembly seat 102 in-place detection mechanism comprises an optical fiber sensor;

a circular static flat plate 109 which is positioned above the middle part of the assembly turntable 101 is fixedly installed on the assembly table 100, and a light source emitting end of the optical fiber sensor is fixedly installed on the upper surface of the static flat plate 109 at a position which is opposite to each loading point in the radial direction of the assembly turntable 101; a light source receiving end of the optical fiber sensor is fixedly arranged on the table surface of the assembly table 100 positioned on the periphery of the assembly turntable 101 at a position which is opposite to each loading point in the radial direction of the assembly turntable 101;

the light source emitting end and the light source receiving end are opposite and equal in height with the inlet surface of the assembling seat 102.

When the optical fiber sensor is implemented, technical personnel in the technical field of the optical fiber sensor know that the light source transmitting end and the light source receiving end are respectively connected with corresponding interfaces on the optical fiber sensor body through optical fibers, and the detection of a detected object is realized through optical signals. And will not be described in detail herein.

Therefore, whether the assembling seat 102 is accurately positioned at each loading point can be accurately determined through the in-place detecting mechanism for the assembling seat 102, and the assembling accuracy of each part can be ensured.

Wherein, at least 6 assembling seats 102 are uniformly arranged along the circumferential direction of the assembling turntable 101 at intervals.

Thus, continuous assembly can be realized; the six assembling mechanisms can complete respective assembling operation at the same time, and the most efficient assembling efficiency is obtained.

The receiving positioning seats of the connecting piece assembling mechanism 103, the shaft sleeve assembling mechanism 104, the leather cup assembling mechanism 105, the end cover assembling mechanism 106 and the deflector rod assembling mechanism 108 are all universal receiving positioning seats, and each universal receiving positioning seat comprises a guide chute 1101, a universal receiving block and a support;

the material guide chute 1101 is fixed on the assembly table 100 through the bracket, the chute width of the material guide chute 1101 is only enough for single parts to sequentially pass through, and the inlet end of the material guide chute 1101 is communicated with the discharge hole of the vibration disc;

the universal material receiving block is mounted on the support, one side face of the universal material receiving block is a connecting plane which is attached and connected with the end face of the outlet end of the material guide chute 1101, a material receiving groove 1102 allowing only a single part to enter is arranged on the connecting plane, an opening is formed in the circumferential direction of the material receiving groove 1102, and the opening can be in direct alignment and communication with the outlet end of the material guide chute 1101; the bottom surface of the material receiving groove 1102 forms a vertical supporting surface, and the side surface of the material receiving groove 1102 can be in contact with the side surface of an entering part to form a limiting surface.

After the direct transmission assembly device adopts the structure of the universal material receiving positioning seat, the design difficulty and the complexity of the product structure can be reduced, and the direct transmission assembly device is easier to manufacture and control the manufacturing cost.

In addition, adopt above-mentioned general type to connect the material positioning seat can be effectively with the single part isolation of waiting to transplant to the accurate material of getting of transplanting tool of being convenient for better ensures developing smoothly of automatic assembly.

In practice, those skilled in the art should know that the above-mentioned universal material receiving positioning seat is suitable for different assembling mechanisms, where the size of the material guiding slot 1101 and the size of the material receiving slot 1102 on the universal material receiving block should be adapted to the corresponding parts, for example, the width of the material guiding slot 1101 in the connecting piece assembling mechanism 103 only allows a single connecting piece to pass through in sequence, and the material receiving slot 1102 on the universal material receiving block in the connecting piece assembling mechanism 103 only allows a single connecting piece to enter; and so on.

When the universal material receiving block is implemented, a material receiving detection mechanism is further arranged on the universal material receiving block, the material receiving detection mechanism comprises a pair of opposite through holes which are arranged on the wall of the material receiving groove 1102 in a penetrating mode, a light source emitting end of an optical fiber sensor is arranged in one through hole, and a light source receiving end of the optical fiber sensor is arranged in the other through hole. Therefore, the signal of whether the parts are arranged in the material receiving groove 1102 or not can be conveniently acquired through the optical fiber sensor.

The general material receiving positioning seat further comprises a guide chute 1101 full-load detection mechanism, the guide chute 1101 full-load detection mechanism comprises a detection sensor fixedly mounted outside the starting end of the guide chute 1101, and a probe of the detection sensor is close to and faces to an inlet of the guide chute 1101.

In practice, the detection touch sensor may be an infrared sensor or an ultrasonic sensor.

After the guide chute 1101 is fully loaded with the detection mechanism, whether a material exists at an inlet of the guide chute 1101 can be detected through the detection sensor, once the material exists, a signal is transmitted to a controller (such as a PLC) of the vibration disc to stop vibrating discharging, and once the material does not exist, the signal is transmitted to the controller of the vibration disc, and then the vibration disc vibrates to discharge the material and feeds the material to the guide chute 1101 in time. Therefore, the guide chute 1101 full-load detection mechanism can reduce the operation energy consumption of the vibration disc and better ensure the continuity and reliability of the guide material.

Wherein the detection sensor is an optical fiber sensor;

a pair of assembling grooves are oppositely arranged on two opposite side surfaces of the inlet of the material guide groove 1101 in a penetrating manner, a light source emitting end of the optical fiber sensor is fixedly inserted into one assembling groove, and a light source receiving end of the optical fiber sensor is fixedly arranged in the other assembling groove.

Utilize optical fiber sensor to detect the structure, the light source transmitting terminal and the light source receiving terminal be the end of optic fibre, and the optic fibre volume is fine and exquisite small and exquisite, more is suitable for and uses in the narrow and small place in space, and is difficult for receiving electromagnetic interference, can be applicable to and detect various products, and the commonality is good, detects the precision height.

After the detection sensor and the installation structure thereof are adopted, the installation and the fixation of the light source transmitting end and the light source receiving end of the optical fiber sensor are more convenient, the optical fiber can be clamped and limited through the right assembling grooves, the optical axis of the light source transmitting end can be effectively ensured to be right opposite to the light source receiving end, and the detection reliability is ensured.

When the light source receiving end receives the light signal, the light signal is in a material shortage state, and a signal is output to the controller of the vibration disk to enable the vibration disk to vibrate and timely supplement materials.

The universal material receiving positioning seat further comprises a material taking mounting plate 1103, a material taking end plate 1104, a material taking traversing cylinder 1105, a limiting column 1106, a material taking guide rail and a material taking sliding block 1107;

the whole material taking mounting plate 1103 is of a strip-shaped flat plate structure along the width direction of the guide chute 1101, and the material taking mounting plate 1103 is fixed on the support; the upper surface of the material taking mounting plate 1103 is fixedly provided with the material taking guide rail along the length direction thereof, and the material taking slide block 1107 is slidably sleeved on the material taking guide rail;

two upwards-convex material taking end plates 1104 are fixedly mounted at two ends of the material taking mounting plate 1103 in the length direction, the material taking transverse moving cylinder 1105 is fixedly mounted on one material taking end plate 1104, and a push rod of the material taking transverse moving cylinder 1105 extends out along the length direction of the material taking mounting plate 1103 and is connected with the material taking slide block 1107; limiting columns 1106 used for limiting the reciprocating movement of the material taking sliding blocks 1107 are respectively fixed on the inner sides of the two material taking end plates 1104; the material taking slider 1107 can enable the material receiving groove 1102 to be in a material receiving state or a material waiting state when the material taking slider is at a back-and-forth stop point, wherein the material receiving state is that an opening of the material receiving groove 1102 is communicated with an outlet end of the material guide groove 1101 in a facing manner, and the material waiting state is that a limiting surface surrounding parts in the material receiving groove 1102 is formed by the side surface of the material receiving groove 1102 and the end surface of the material guide groove 1101.

After the general material receiving positioning seat structure is adopted, the material receiving groove 1102 of the material receiving plate can be guaranteed to smoothly take materials from the material guide groove 1101, the material receiving plate can be pushed to enable the side face of the material receiving groove 1102 and the end face of the material guide groove 1101 to jointly form a limiting face and surround parts in the material receiving groove 1102 (to-be-taken state) through the material taking transverse moving cylinder 1105 after the material taking is completed, so that the impact disturbance of the parts in the material guide groove 1101 close to the material receiving groove 1102 (and the difficulty and the assembly precision of a transplanting tool in accurate material taking) can be avoided when the material receiving state is achieved, the positioning precision of the parts in the material receiving groove 1102 is better guaranteed, and the transplanting tool is effectively helped to accurately take the materials and assemble the parts.

The universal material receiving positioning seat further comprises hydraulic buffers 1108, one hydraulic buffer 1108 is respectively fixed to each of the two material taking end plates 1104, and a buffer contact of each hydraulic buffer 1108 is used for forming buffering after being impacted with the material taking sliding block 1107.

By adopting the hydraulic buffer 1108, the moving speed of the push rod of the traversing cylinder 1105 for taking materials can be increased, and simultaneously, the sliding block 1107 for taking materials is close to the reciprocating start-stop position through the hydraulic buffer 1108 to form buffering, thereby achieving better anti-collision protection effect.

The transplanting mechanisms of the connecting piece assembling mechanism 103, the shaft sleeve assembling mechanism 104, the leather cup assembling mechanism 105, the end cover assembling mechanism 106 and the deflector rod assembling mechanism 108 are all universal transplanting mechanisms, and each universal transplanting mechanism comprises a support upright post, a transverse moving cylinder 1111 for transplanting, a lifting cylinder 1112 for transplanting, a vacuum suction head 1113 for transplanting, a guide rail for transplanting, a sliding block for transplanting, an installing plate 1114 for transplanting and an end plate 1115 for transplanting;

the lower end of the supporting upright post is fixed on the table surface of the assembly table 100, the upper end of the supporting upright post is fixed with a transverse strip-shaped transplanting mounting plate 1114, the plate surface of the transplanting mounting plate 1114 is fixedly provided with a transverse transplanting guide rail, the transplanting guide rail is slidably sleeved with a transplanting slider, the transplanting slider is fixedly provided with a vertical transplanting lifting cylinder 1112, the push rod of the transplanting lifting cylinder 1112 faces downwards, and the lower end of the transplanting lifting cylinder 1112 is fixedly provided with the transplanting vacuum suction head 1113;

two opposite end plates 1115 for transplantation are vertically fixed at two ends of the length direction of the installation plate 1114 for transplantation, one end plate 1115 for transplantation is fixedly provided with the transverse moving cylinder 1111 for transplantation, and a push rod of the transverse moving cylinder 1111 for transplantation is fixedly connected with the sliding block for transplantation.

The universal transplanting mechanism is simple in structure and small in occupied area, the space above the 100 surfaces of the assembly table can be fully utilized, and the occupied area of the direct transmission set assembly device is reduced.

Meanwhile, the vacuum suction head 1113 for transplantation can suck other various parts except the transmission shaft, and has good universality.

During implementation, the vacuum suction head 1113 for transplanting is made of a metal material, so that the vacuum suction head can be used for press fitting operation while playing a role in taking and placing materials, and rich functions are realized.

When the leather cup assembling mechanism 105 is implemented, the outer part of the tail section of the discharge chute of the vibration disc of the leather cup assembling mechanism 105 is fixedly provided with the air blowing pipe 112, and an air blowing opening of the air blowing pipe 112 faces the inside of the discharge chute and is used for lifting the leather cup to move forward.

Because the packing leather cup is made by elastic material, the packing leather cup originally can absorb the partial vibration energy of vibration dish, reduces the efficiency of ejection of compact, in addition, will get into baffle box 1101 after one by one when the packing leather cup is at the end of blown down tank after, adjacent packing leather cup can extrude each other to influence the smooth and easy nature of the packing leather cup ejection of compact and the ejection of compact gesture of packing leather cup.

After the air blowing pipe 112 is additionally arranged, the leather cup can be discharged smoothly through wind power.

III

As shown in fig. 12 to 17: the transmission shaft assembling mechanism 107 of the direct transmission set assembling device comprises a vibration disc for a transmission shaft, a first conveying pipe 200, a material receiving positioning seat 201 for the transmission shaft and a transplanting mechanism 202 for the transmission shaft;

the receiving positioning seat 201 for the transmission shaft comprises a base 2011 and a receiving assembly 2012, wherein the receiving assembly 2012 comprises a receiving lug 20121, a receiving slider, a transverse moving cylinder 20123 for the receiving slider and a jacking cylinder 20124 for the transmission shaft;

the base 2011 is fixedly installed on the table top of the assembly table 100, the base 2011 is in a long strip-shaped structure, and a horizontal supporting surface and the receiving protrusion 20121 are arranged along the length direction of the upper surface of the base 2011; the jacking cylinder 20124 for the transmission shaft is fixedly arranged at the lower part of the base 2011, and a push rod of the jacking cylinder 20124 for the transmission shaft penetrates through the horizontal supporting surface to form a jacking point 20125;

the side surface of the material receiving bump 20121 close to the horizontal supporting surface is provided with a concave jack, the lower side surface of the jack is flush with the horizontal supporting surface, and two opposite side surfaces of the jack are provided with strip-shaped guide limiting holes in mirror symmetry in a penetrating way; the material receiving sliding block is inserted in the jack in a sliding mode, convex columns inserted in the guide limiting holes are formed in the two back side surfaces of the material receiving sliding block in a convex mode, and the outer ends of the material receiving sliding block can retract into the jack or extend out of the position right above the jacking point 20125 along the guide limiting holes; the material receiving slide block is fixedly connected with the inner side end of the material receiving slide block through a push rod of a transverse moving cylinder 20123;

a blanking hole is vertically arranged between the position, close to the outer end, of the upper surface of the material receiving sliding block and the upper side surface of the jack in a penetrating mode, and the diameter of the blanking hole is consistent with the maximum diameter of the transmission shaft;

a jacking interval is arranged between the lower surface of the material receiving sliding block and the lower side surface of the jack, and the height between the upper surface of the material receiving sliding block and the lower side surface of the jack is consistent with the axial length of the transmission shaft;

the cross section of the first conveying pipe 200 only can pass through a single transmission shaft, the upper end of the first conveying pipe 200 is communicated with a discharge hole of the vibration disc for the transmission shaft, and the lower end of the first conveying pipe 200 is communicated with a blanking hole in the material receiving bump 20121;

the transplanting mechanism 202 for the transmission shaft is used for clamping and taking out the transmission shaft from the jacking point and conveying the transmission shaft to the assembly seat 102 of the direct transmission set assembly device.

The transmission shaft assembling mechanism 107 of the direct drive group assembling device has the advantages that:

1. the transmission shaft is downwards transmitted in the conveying pipe by the gravity of the transmission shaft, the conveying speed is high, and the continuity and the smoothness of conveying are guaranteed.

2. After the transmission shaft enters through the material receiving convex block 20121 and the material receiving hole in the material receiving slider, when the lower end of the transmission shaft is abutted to the lower side face of the jack of the material receiving convex block 20121, the upper end of the transmission shaft is flush with the upper side of the material receiving slider right, a limiting face for the falling of the lower end of one transmission shaft above is formed, and the material receiving slider can slide out smoothly. Therefore, the structure can ensure that only one transmission shaft enters the blanking hole of the material receiving sliding block at a time, and the ordered discharging of the transmission shafts is ensured.

3. After the outer end of the material receiving slider reaches the jacking point position 20125 under the action of the transverse moving cylinder 20123 for the material receiving slider, the jacking cylinder 20124 for the transmission shaft pushes the transmission shaft upwards, the upper section of the transmission shaft extends out, and the extending amount (through the interval for jacking) of the transmission shaft can be accurately determined, so that the transplanting mechanism 202 for the transmission shaft can accurately take materials and complete the feeding amount of the transmission shaft and the accurate assembly, and the accurate assembly is realized.

In conclusion, the transmission shaft assembling mechanism 107 of the direct transmission set assembling device can effectively ensure that the transmission shafts are sequentially and orderly output one by one and accurately positioned, and is favorable for helping to realize high-precision assembly of the transmission shafts.

In practice, the delivery tube is made of smooth stainless steel. Therefore, the conveying pipe is not easy to rust, the conveying resistance is not increased due to rust, and the conveying smoothness is effectively ensured for a long time.

The transplanting mechanism 202 for the transmission shaft comprises a support upright post, a transverse moving cylinder 2021 for transplanting the transmission shaft, a lifting cylinder 2022 for transplanting the transmission shaft, an air claw 2023 for transplanting the transmission shaft, a guide rail for transplanting the transmission shaft, a sliding block for transplanting the transmission shaft, an installation plate 1114 for transplanting the transmission shaft and an end plate 1115 for transplanting the transmission shaft;

the lower end of the support upright post is fixed on the table surface of the assembly table 100, the upper end of the support upright post is fixed with a transverse strip-shaped transmission shaft transplanting mounting plate 1114, the surface of the transmission shaft transplanting mounting plate 1114 is fixedly provided with a transverse transmission shaft transplanting guide rail, the transmission shaft transplanting guide rail is slidably sleeved with a transmission shaft transplanting slider, the transmission shaft transplanting slider is fixedly provided with a vertical transmission shaft transplanting lifting cylinder 2022, the push rod of the transmission shaft transplanting lifting cylinder 2022 faces downwards, and the lower end of the transmission shaft transplanting lifting cylinder 2023 is fixedly provided with the transmission shaft transplanting air claw 2023;

two opposite end plates 1115 for transmission shaft transplanting are vertically fixed at two ends of the mounting plate 1114 for transmission shaft transplanting in the length direction, one end plate 1115 for transmission shaft transplanting is fixedly provided with the transverse moving cylinder 2021 for transmission shaft transplanting, and a push rod of the transverse moving cylinder 2021 for transmission shaft transplanting is fixedly connected with the sliding block for transmission shaft transplanting.

The transplanting mechanism 202 for the transmission shaft is simple in structure and small in occupied area, can fully utilize the space above the surface of the assembly table 100, and helps to reduce the occupied area of the direct transmission set assembly device.

The transmission shaft assembling mechanism 107 further comprises a bypass discharging channel 203 and a second conveying pipe 204, the bypass discharging channel 203 is arranged at the straight discharging section of the vibration disc for the transmission shaft side by side, a feeding hole of the bypass discharging channel 203 is communicated with an opening on the side surface of the spiral conveying channel of the vibration disc for the transmission shaft, and the lower side surface of the opening is flush with the road surface of the spiral conveying channel of the vibration disc for the transmission shaft;

two sets of receiving assemblies 2012 are arranged on two sides of the horizontal supporting surface in the length direction of the base 2011, the heights of the transmission shafts in the two sets of receiving assemblies 2012, which are inserted into the positions, are the same or different, and the blanking holes of the receiving lugs 20121 in one set of receiving assemblies 2012 are communicated with the discharge hole of the bypass discharge channel 203 through the second conveying pipe 204.

The structure has the advantages that:

1. when the heights of the transmission shafts in the two sets of material receiving assemblies 2012 are the same, a main and standby double-insurance structure can be formed while the structure complexity and the manufacturing difficulty are reduced, when one of the two sets of material receiving assemblies 2012 breaks down, the other set of material receiving assembly 2012 can be adopted in time, the long-time halt is avoided, and the assembly production of the direct transmission set is effectively ensured.

2. When the heights of the transmission shafts in the two sets of material receiving assemblies 2012 are different, the transmission shaft assembling mechanisms 107 can be used for loading and assembling the transmission shafts with two different heights (in different time), the structural complexity and the manufacturing difficulty are reduced, and the practicability is improved.

Wherein, the opening on the side of the spiral conveying channel of the vibration disk for the transmission shaft is provided with a gate capable of being opened and closed.

Therefore, the gate can be opened and closed to rapidly open or close the bypass discharging channel 203, and the convenience and switching speed of discharging channel switching are improved.

The whole surface of the feed inlet of the bypass discharge channel 203 is a slope surface structure which is in through connection with an opening on the side surface of the spiral material conveying channel of the vibration disc for the transmission shaft from bottom to top.

The setting on above-mentioned slope can make the transmission shaft through get into bypass discharging channel 203 through the slope under its self action of gravity, effectively ensures that bypass discharging channel 203 can the ejection of compact smoothly.

The transmission shaft assembling mechanism 107 further comprises a transmission shaft feeding detection mechanism, and the transmission shaft feeding detection mechanism comprises a detection perforation and an optical fiber sensor;

a pair of detection through holes are arranged on two opposite side surfaces of the jacking interval in the material receiving bump 20121 in a penetrating manner, and the connecting line of the pair of detection through holes can be intersected with the extending line of the material falling hole in the material receiving bump 20121; and one of the pair of detection perforations is provided with a light source emitting end of the optical fiber sensor, and the other detection perforation is provided with a light source receiving end of the optical fiber sensor.

After the transmission shaft feeding detection mechanism is adopted, whether the transmission shaft is correctly arranged in the material arrangement hole or not can be detected in time, and therefore preparation is provided for subsequent transmission shaft taking-out and assembling procedures.

The transmission shaft assembling mechanism 107 further comprises a lubricating medium coating structure for the transmission shaft, wherein the lubricating medium coating structure for the transmission shaft comprises a narrowed lubricating medium coating surface;

the narrowing lubricating medium coating surface is arranged on the surface of the assembling table 100 below the connecting line of the jacking point 20125 and the adjacent loading point, the narrowing lubricating medium coating surface is gradually narrowed from the radial outer side of the assembling rotating disc 101 to the inner side, and the narrowest part of the narrowing lubricating medium coating surface can be used for the transmission shaft to vertically pass through and can be contacted with the surface of the transmission shaft.

After the lubricating medium coating structure for the transmission shaft is adopted, the coating of the lubricating medium on the surface of the transmission shaft can be completed simultaneously in the transplanting process of the transmission shaft, the cooperative high-efficiency degree of the transmission shaft assembly is improved, the lubricating medium coating structure and the volume of the transmission shaft are effectively simplified, and a better implementation effect is obtained.

Wherein the narrowed lubricating medium coating surface is formed by adjacent side surfaces between two rollers 25 which are vertical side by side.

In this way, the roller 25 can rotate after contacting the surface of the transmission shaft to reduce the frictional resistance to the transmission shaft, and at the same time, the rolling roller 25 can increase the contact area with the transmission shaft, so that more lubricating medium is applied to the surface of the transmission shaft, and a better lubricating effect is obtained.

Wherein, the surface cover of two cylinders 25 is equipped with the sponge cover that adsorbs the lubricating medium, and the sponge cover that separates the nearest on two cylinders 25 extrudees each other.

The surface that above-mentioned sponge cover's setting can contact with the transmission shaft more comes extrusion deformation and abundant contact for the epaxial lubricating grease coating of transmission is more abundant and even.

Wherein, the rotating shafts of the two rollers 25 are respectively connected with the output shaft of the driving motor through a gear pair, and the two rollers 25 can rotate along the transplanting passing direction of the driving shaft.

In this way, it is possible to avoid situations in which the grease on the sponge sleeve at a single circumferential angle on the cylinder 25 is consumed quickly and cannot be replenished in time (and therefore situations in which the grease coating on the surface of the drive shaft is poor or not uniform enough); lubricating grease that can be more abundant inside the good sponge cover of utilization deposit to, cylinder 25 can also make the lubricating grease intensive dispersion in the sponge cover and gather to the surface through centrifugal force under the drive of motor, thereby the lubricating grease coating effect of better assurance transmission shaft.

In practice, the lubricating medium coating structure for the transmission shaft further comprises a box body filled with the lubricating medium, and the two rollers 25 are arranged inside the box body. Therefore, the sponge on the roller 25 can timely draw the lubricating medium from the box body, and the reliable coating of the lubricating medium on the transmission shaft is ensured.

During implementation, preferably the height of the side face of the box body is consistent with the height of the sponge sleeve, and the box body is provided with yielding slotted holes for the transmission shaft to vertically pass through by penetrating two opposite side faces at the intersection of the two rollers 25. Thus, the lubricating medium on the sponge sleeve can be prevented from being sprayed out by the centrifugal force generated by the rotating roller 25 through the side surface of the box body, waste is avoided, and the utilization rate of the lubricating medium is improved.

Fourthly

As shown in fig. 4, 12, 14 and 18: the lubricating medium coating mechanism of the direct transmission set assembling device comprises a lubricating medium coating structure for a shaft sleeve, wherein the lubricating medium coating structure for the shaft sleeve comprises a stretching and swinging cylinder 301, a cantilever 302 and a lubricating medium injector 303;

a static flat plate 109 positioned above the middle part of the assembly turntable 101 is fixedly arranged on the assembly table 100 of the direct transmission set assembly device, and the lower end of the stretching and swinging cylinder 301 is fixed on the static flat plate 109 and is close to the position of the shaft sleeve assembly mechanism 104; the pendulum arm that stretches out of pendulum cylinder 301 is upwards fixed with cantilever 302, the outer end of cantilever 302 is less than stretch out pendulum cylinder 301's upper end and fixed mounting have vertical decurrent lubricating medium injector 303, lubricating medium is deposited to the inside of lubricating medium injector 303, lubricating medium injector 303 lower extreme is the filling opening that can supply lubricating medium to flow out, the filling opening can be followed and stretched out pendulum cylinder 301 and can get into and contact and pour into lubricating medium with the axle sleeve bottom in the assembly seat 102 on the direct drive group assembly quality.

The lubricating medium coating mechanism of the direct transmission set assembling device has the advantages that:

1. the stretching and swinging cylinder 301 is adopted to enable the injector to complete stretching and swinging actions, and the device has the advantages of simple operation and control and compact structure.

2. The lubricating medium coating structure for the shaft sleeve can work immediately after the shaft sleeve is assembled, the implementation efficiency is high, the completion speed is high, and the efficient, reliable and scientific assembling process of the direct transmission set can be greatly realized. The durable low-friction rotation of the transmission shaft in the direct transmission assembly device after the subsequent assembly can be ensured, and the transmission performance is ensured.

The lubricating medium injector 303 comprises an oil storage cylinder and an injection pipe from top to bottom in sequence;

the top of the oil storage cylinder is provided with a connector which is communicated with the lubricating medium conveying pipe in a sealing way;

the upper section of the injection pipe is inserted in the oil storage cylinder in a sealing and sliding manner, the upper end of the injection pipe is provided with a circle of limiting convex ring, and the limiting convex ring is matched with a limiting step in the oil storage cylinder to realize downward movement limiting of the injection pipe;

the outer surface of the middle position of the height direction of the injection pipe is provided with a circle of bulges, a circle of pressure spring is sleeved on the tubular structure above the bulges, and two ends of the pressure spring are pressed between the bulges and the lower end surface of the oil storage cylinder.

After the structure is adopted, the lubricating medium can be supplemented to the oil storage cylinder in time through the lubricating medium conveying pipe; the injection pipe moves upwards after entering the shaft sleeve along with the telescopic rod and extrudes the oil storage cylinder and the inner cavity of the injection pipe, so that a lubricating medium (particularly, the lubricating grease is suitable for lubricating grease) is reliably sent out; and the refill tube is reset under the action of the compression spring, and then the inner cavity is expanded again and is replenished through the lubricating medium conveying pipe again.

Wherein, the periphery of the injection pipe is wrapped with a wiping cloth.

Therefore, when the lubricating medium is injected through the wiping cloth, dust on the inner side of the shaft sleeve can be cleaned and wiped smoothly, and the transmission shaft can be better ensured to be lubricated durably and reliably.

The lubricating medium coating structure for the shaft sleeve further comprises a shaft sleeve clamping mechanism, wherein the shaft sleeve clamping mechanism comprises a clamping cylinder and a clamping block; the clamping cylinder is fixedly mounted on the stationary plate 109; the clamping cylinder has an air claw on which a pair of clamping blocks are mounted and which can be opened and closed by 180 degrees, and the pair of clamping blocks can clamp the portion of the assembly base 102 protruding from the upper section of the shaft sleeve when swinging to the closed position.

The arrangement of the shaft sleeve clamping mechanism can prevent the shaft sleeve from being taken out of the assembling seat 102 by the friction force of the wiping cloth, and the automation and the continuity of the assembling can be better ensured.

The pair of 180-degree opening-closing type clamping blocks can play a role in firstly avoiding interference and installation of an optical fiber sensor for adjacent loading positions; next, the mounting seat 102 on the rotating mounting turntable 101 can be set aside, and the rotation of the mounting turntable 101 can be ensured to be smoothly performed.

The lubricating medium coating mechanism further comprises a lubricating medium coating structure for a leather cup, and the lubricating medium coating structure for the leather cup comprises a stretching and swinging cylinder 301, a cantilever 302 and a lubricating medium injector 303;

the lower end of the stretching and swinging cylinder 301 is fixed on the static flat plate 109 at a position close to the leather cup assembling mechanism 105; the swing rod of the swing cylinder 301 faces upwards and is fixed with the cantilever 302, the outer end of the cantilever 302 is lower than the upper end of the swing cylinder 301 and is fixedly provided with the lubricating medium injector 303 facing downwards vertically, lubricating medium is stored in the lubricating medium injector 303, the lower end of the lubricating medium injector 303 is an injection port through which the lubricating medium can flow out, and the injection port can enter and contact with a leather cup in a shaft sleeve on the assembling seat 102 of the direct transmission set assembling device and inject the lubricating medium after swinging along with the swing cylinder 301.

The lubricating medium coating structure for the shaft packing cup can immediately operate after the packing cup is assembled, greatly improves the operating efficiency, and can ensure the lasting low-friction rotation of the transmission shaft in the direct transmission assembly assembling device after the subsequent assembly, thereby ensuring the transmission performance.

The lubricating medium coating mechanism for the transmission shaft further comprises a lubricating medium coating structure for the transmission shaft, and the lubricating medium coating structure for the transmission shaft comprises a narrowed lubricating medium coating surface;

Wherein, the lubricating medium coating structure for the transmission shaft further comprises a box body filled with the lubricating medium, and the two rollers 25 are arranged in the box body.

Therefore, the sponge on the roller 25 can timely draw the lubricating medium from the box body, and the reliable coating of the lubricating medium on the transmission shaft is ensured.

Five of them

The quality detection method of the direct transmission set comprises an air tightness detection step, wherein the air tightness detection step comprises the following three steps:

step one, forming a sealed cavity:

inserting a connecting piece or a deflector rod of the direct transmission set into a detection slot and forming a sealed cavity inside the detection slot;

step two, inflation:

an inflation inlet which is hermetically communicated with the inside is arranged on the upper side surface of the detection slot, gas is injected into the sealed inflation inlet through a gas source, a control valve and a gas pipe, then the control valve is closed, and an initial pressure value is measured through a hydraulic sensor arranged on the gas pipe;

thirdly, judging whether air is leaked:

closing the control valve, and measuring the air pressure value in the air delivery pipe as a leakage detection air pressure value through a hydraulic sensor after a preset time;

judging the magnitude of the leak detection air pressure value and the initial air pressure value, and if the leak detection air pressure value is equal to the initial air pressure value, the air tightness detection of the direct transmission set is qualified; and when the leak detection air pressure value is smaller than the initial air pressure value, the air tightness detection of the direct transmission set is unqualified.

The quality detection method of the direct transmission set can detect the air tightness quality of the direct transmission set, so that the use safety of the direct transmission set is better ensured.

And in the third step, rotating a transmission shaft of the direct transmission set within a preset time to form dynamic seal detection.

The working condition of the direct transmission set during actual use on the gas meter can be better simulated, and therefore the sealing performance under the normal rotation condition can be better detected.

Wherein, the transmission shaft of the direct transmission group is rotated by driving the rotatable part connected with the transmission shaft on the direct transmission group outside the detection slot.

In this way, both ends of the transmission shaft of the direct transmission set are rotatable parts (one end is a connecting piece fixedly connected with the transmission shaft, and the other end is a deflector rod fixedly connected with the transmission shaft).

And the air tightness detection step is realized by adopting a direct transmission set air tightness detection mechanism below.

The direct drive set mass detection method further comprises a torque detection step having the following

Firstly, clamping and fixing a shaft sleeve;

secondly, a rotary driver is used for driving a transmission shaft of the direct transmission set to rotate;

thirdly, obtaining a transmission shaft rotation parameter of the direct transmission set, wherein the rotation parameter is a torque parameter or a rotation number; the preset driving parameters of the rotary driver and the transmission shaft rotation parameters are the same type of parameters, the transmission shaft rotation parameters are compared with the preset driving parameters of the rotary driver, if the preset driving parameters are consistent, the torque detection is qualified, and if the preset driving parameters are inconsistent, the torque detection is unqualified.

The meaning of "the preset driving parameter of the rotary driver and the transmission shaft rotation parameter are the same type of parameter" means that either the preset driving parameter and the transmission shaft rotation parameter are both "torque parameters", or the preset driving parameter and the transmission shaft rotation parameter are both the number of rotation turns.

Can realize the detection of direct drive group rotation performance like this through above-mentioned moment of torsion detects, the rotatory smoothness nature of the direct drive group that the better assurance was dispatched from the factory.

Six ingredients

As shown in fig. 3, 4, 19 to 21: a direct drive set torque detection mechanism fixedly mounted on the mounting table 100 of the direct drive set mounting apparatus;

the direct transmission set torque detection mechanism comprises a rotating clamp, a rotating driver and a rotating parameter acquirer, wherein the rotating clamp is used for clamping a part, inserted into an assembly seat 102 of a direct transmission set assembly device, of a shaft sleeve upper section of a direct transmission set; the rotary driver comprises a motor and a rotating rod 401, the rotating rod 401 and a rotating shaft of the motor synchronously rotate, and the rotary driver is used for driving a shifting rod and a transmission shaft of a direct transmission set inserted into the assembly seat 102 to rotate through the rotating rod 401; the rotation parameter acquirer is used for measuring and taking out the rotation parameters of the transmission shaft of the direct transmission set.

The direct drive set torque detection mechanism has the advantages that:

1. the torque detection can be directly completed on the direct transmission set assembling device, and the assembling and detecting efficiency is improved.

2. The torque detection structure and the detection operation are simple. The torque of the direct transmission set can be judged to be qualified or not only by measuring the 'transmission shaft rotation parameter' through the rotation parameter acquirer and comparing the 'transmission shaft rotation parameter' with the 'preset driving parameter' of the motor.

The motor of the rotary driver is a servo motor, and the servo motor forms the rotation parameter acquirer.

The technical personnel in the field know that the control circuit of the servo motor controls the driving current of each phase of the motor through the feedback of the current loop, the speed loop and the position loop, so that the speed and the position of the servo motor can accurately run according to the preset operation, and the preset driving parameters can be obtained. In addition, the servo motor is also a three-closed-loop control comprising a current loop, a speed loop and a position loop, and the three-closed-loop control can respectively feed back the angular acceleration, the angular speed and the rotating position of the motor operation, so that the 'transmission shaft rotating parameter' can be measured.

For example, when the direct drive unit is jammed, the servo motor needs to be larger than a preset torque or cannot drive the shift lever and the transmission shaft of the direct drive unit to rotate at all, so that the servo motor can measure a real-time transmission shaft rotation parameter through a control circuit of the servo motor, and after the real-time transmission shaft rotation parameter is compared with a preset drive parameter, a judgment signal can be transmitted to a controller (PLC), and the controller reminds a worker, or directly screens out the direct drive unit with unqualified torque through a manipulator.

The rotary driver further comprises an outer magnetic sleeve 402 and an inner magnetic sleeve 403, wherein the outer magnetic sleeve 402 is arranged outside the inner magnetic sleeve 403, and the inner magnetic sleeve 403 can be suspended under the action of magnetic attraction force;

the rotary driver further comprises a coupling 404, an assembly cylinder 405, an assembly column 406 and a connection turntable 407, all made of paramagnetic material; the coupler 404 is coaxially and fixedly connected with a rotating shaft of the motor, the lower end of the coupler 404 is fixedly connected with the assembling cylinder 405 through threads, the outer magnetic sleeve 402 is positioned in the assembling cylinder 405, and the upper end and the lower end of the outer magnetic sleeve 402 are tightly pressed between the lower end surface of the coupler 404 and the lower end plate of the assembling cylinder 405;

the inner magnetic sleeve 403 is fixedly sleeved on the upper section of the assembling post 406 and is positioned inside the outer magnetic sleeve 402 through magnetic attraction; the lower section of the assembling column 406 extends out of a through hole formed in the middle of the lower end plate of the assembling cylinder 405, the lower end of the assembling column 406 is coaxially fixed with the connecting turntable 407, and the lower surface of the connecting turntable 407 is fixedly provided with the eccentric and downward-convex rotating rod 401;

the connection turntable 407 is also fixedly provided with a detection lug 408 protruding outwards along the radial direction of the connection turntable;

the rotation parameter acquirer is a proximity sensor, and a probe of the proximity sensor vertically faces any position on a rotation track of the detection bump 408.

In practice, the shaft coupler 404 and the assembling cylinder 405 are preferably made of copper materials, and the assembling column 406, the connecting rotary disc 407 and the rotating rod 401 are all made of plastics.

In the structure of the above-mentioned rotary driver, magnetic attraction between outer magnetic sleeve 402 and inner magnetic sleeve 403 forms rated torque, when the transmission shaft jamming of direct drive group torque, the motor still drives assembly cylinder 405 and outer magnetic sleeve 402 through coupler 404 to rotate, but inner magnetic sleeve 403, assembly post 406, connection carousel 407 and dwang 401 then overcome magnetic attraction and can not rotate enough under the transmission shaft jamming of direct drive group torque, like this, proximity sensor judges the number of turns of connection carousel 407 rotation through the number of times of passing through of detecting and detecting with lug 408, when this number of turns is inconsistent with motor shaft number of turns, then direct drive group torque is unqualified.

Therefore, the structure of the rotary driver is simple, rated torque can be automatically recovered, and the rotary driver can be used for torque detection continuously, permanently and reliably, and has a good using effect. In addition, the magnetic torque generated by the outer magnetic sleeve 402 and the inner magnetic sleeve 403 is smaller, and the driving lever is driven to rotate by the smaller magnetic torque, so that the torque detection is stricter, and the transmission reliability of the direct transmission set is better ensured.

The proximity sensor is an optical fiber sensor, and a light source transmitting end and a light source receiving end of the optical fiber sensor are fixedly arranged at the upper end and the lower end of a C-shaped bracket; the inspection bumps 408 are made of a light-impermeable material and can be laterally scored through the openings and interior of the C-shaped bracket.

The light source transmitting end and the light source receiving end of the optical fiber sensor are optical fiber end sections, and the optical fibers are flexible and soft, are not easily limited by installation places, and can be easily installed. Moreover, the optical fiber is not easily interfered by electricity, so that the detection accuracy and reliability can be better ensured.

The rotating clamp comprises a shaft sleeve clamping mechanism, a clamping cylinder and a clamping block, wherein the shaft sleeve clamping mechanism comprises the clamping cylinder and the clamping block;

a circular stationary flat plate 109 which is positioned above the middle part of the assembly turntable 101 is fixedly installed on the assembly table 100, and the clamping cylinder is fixedly installed on the stationary flat plate 109; the clamping cylinder has a pneumatic claw on which a pair of clamping blocks are mounted, and the clamping blocks can swing to a position where they can clamp the portion of the assembly base 102 protruding from the upper section of the sleeve when the clamping cylinder is closed.

The arrangement of the shaft sleeve clamping mechanism can avoid the integral rotation of the direct transmission set in the assembly seat 102 when the rotating rod 401 of the motor drives the deflector rod of the direct transmission set to rotate, so that the detected result cannot correctly reflect the torque condition of the direct transmission set; the correctness of the torque detection result is better ensured.

The assembling seats 102 of the 8 direct transmission set assembling devices are uniformly arranged along the circumferential direction of the assembling rotary table 101 of the direct transmission set assembling devices at intervals, six loading point positions and two detection point positions are formed, a first detection point position and a second detection point position are sequentially arranged at the positions of the two adjacent assembling seats 102 in the rotating sequence direction of the assembling rotary table 101, the direct transmission set torque detection mechanism is arranged on the surface of the assembling table 100 adjacent to the first detection point position, and the direct transmission set air tightness detection mechanism is arranged on the surface of the assembling table 100 adjacent to the second detection point position.

Therefore, the direct transmission assembly device is an integrated device of assembly and quality detection, and has more ideal use effect and higher assembly and detection efficiency.

An unqualified part placing box is arranged below a walking path of the feeding rodless cylinder 5043 driving the feeding vacuum suction head 5045.

Above-mentioned unqualified piece places the setting of box, can make things convenient for vacuum suction head 5045 for the material loading to come the direct drive group that directly detects unqualified torque to lose to put to unqualified piece and place the box and collect, makes things convenient for the manual work to take away fast and overhaul.

In practice, the unfit fitting box is preferably provided at the outer end of the rodless feeding cylinder 5043 remote from the assembly turntable 101.

Seven-piece

As shown in fig. 3, 4, 22 and 23: the direct transmission set air tightness detection mechanism comprises an air tightness detection seat 5001 and a compression structure;

the lower end of the air tightness detection seat 5001 is a fixed mounting surface, the upper surface of the air tightness detection seat 5001 is provided with a detection slot, an annular step is arranged in the detection slot, and the upper surface of the annular step is provided with a sealing gasket; the detection slot is used for inserting the direct transmission set and enabling an annular bulge on a shaft sleeve of the direct transmission set to be lapped on the sealing gasket of the annular step, so that a sealing cavity is formed in the detection slot below the annular bulge on the shaft sleeve of the direct transmission set;

an inflation interface communicated with the sealing cavity is arranged on the surface of the air tightness detection seat 5001; the inflation interface is used for being connected with a gas pipe provided with a control valve and a hydraulic sensor in a sealing way;

the compression structure comprises a support column 5011 for compression, a cylinder 5012 for compression and a pressing block 5013; the lower end of the supporting column 5011 for compressing is fixed at a position close to the air tightness detection seat 5001; compress tightly with cylinder 5012 vertical fix compress tightly with upper end and push rod down, the last fixed mounting of push rod has briquetting 5013, briquetting 5013's lower extreme has the portion of compressing tightly, the portion of compressing tightly is used for will inserting to detect and compress tightly with the direct drive group in the slot to make the annular arch of the axle sleeve of direct drive group support tightly seal ring realizes sealedly.

1. the structure is simple and compact, the direct transmission assembly can be directly arranged and installed on the assembly table 100 of the direct transmission assembly, the assembly and detection efficiency is improved, and the product quality of the direct transmission assembly is ensured more effectively and efficiently.

2. The operation and the use are convenient, and only the direct transmission set needs to be placed into the detection slot of the air tightness detection seat 5001, so that the automatic charging and the detection can be realized by being matched with a manipulator easily.

The air tightness detection seat 5001 is a strip-shaped block structure, and a plurality of detection slots are formed in the air tightness detection seat 5001 at intervals along the length direction; the press block 5013 is provided with a plurality of the pressing portions which are opposite to the detection slots one by one.

Therefore, the airtightness detection of a plurality of direct transmission sets can be completed at one time, and the detection efficiency is improved by multiple times. During detection, when pressure drop occurs in the gas transmission pipe, it can be judged that one of the plurality of direct transmission sets in the batch has leakage, and the batch is completely placed into an unqualified product box for subsequent detailed detection and maintenance. When the pressure drop of the gas transmission pipe does not occur, the air tightness of the batch of the multiple direct transmission sets can be judged to be qualified, so that multiple products can be completely put into a qualified product box.

The direct transmission set air tightness detection mechanism further comprises a blanking structure, wherein the blanking structure comprises a supporting column 5021 for blanking, a rodless cylinder 5022 for blanking, a lifting cylinder 5023 for blanking and an air claw 5024 for blanking;

the rodless cylinder 5022 for blanking is fixedly arranged on the supporting column 5021 for blanking, and the movable block of the rodless cylinder 5022 for blanking can approach or depart from the air tightness detection seat 5001; the movable block is fixed with the push rod through the support frame and faces downwards lifting cylinder 5023 for the unloading, and fixed mounting has a supporting flat plate of horizontal bar on this lifting cylinder 5023 for the unloading push rod, along length direction fixed mounting on the supporting flat plate with each detect with the slot one by one just right a plurality of for the unloading gas claw 5024, each for the unloading gas claw 5024 is used for pressing from both sides the outside part of slot for the detection on the axle sleeve of each direct drive group.

After the blanking structure is adopted, the controller (such as a PLC) can be used for automatically clamping and blanking the direct transmission group which completes the air tightness detection, so that the blanking efficiency is improved.

Wherein, a qualified product box and an unqualified product box are sequentially arranged under the retraction stroke of the gas claw 5024 for blanking.

Therefore, the products can be automatically divided through the blanking structure.

The overlooking direction of the pressing part is of a C-shaped structure, and the C-shaped structure can be used for exposing the upper section of the shaft sleeve of the direct transmission set inserted into the slot for detection and the deflector rod;

the upper part of the pressing block 5013 is also provided with a deflector rod driving structure, and the deflector rod driving structure comprises a motor, a driving shaft, a rotating column and a supporting plate; the motor and the support plate are fixed to the press block 5013, and the number of the drive shafts and the number of the rotation columns are equal to the number of the slots for detection; the driving shaft is rotatably arranged on the supporting plate and is vertically opposite to the detection slots one by one;

the driving shaft is in transmission connection with a rotating shaft of the motor and is coaxial with a transmission shaft of a direct transmission set inserted into the detection slot right opposite to the lower part, an L-shaped rotating column which is clockwise turned by 90 degrees is fixed at the lower end of the driving shaft, and the rotating column is used for driving a deflector rod of the direct transmission set inserted into the detection slot right opposite to the lower part to rotate.

After adopting above-mentioned structure, can drive the transmission shaft rotation of inserting the direct drive group in detecting with the slot through driving lever drive structure in the gas tightness testing process to the process of more real simulation actual operation use realizes the dynamic seal and detects, thereby the safety in utilization and the reliability of better assurance product.

The number of the motors is one, and the driving shafts are connected with the rotating shafts of the motors through gear sets.

Therefore, the driving structure of the deflector rod can be simplified, the manufacturing cost is reduced, and the cost performance is improved.

The direct transmission set air tightness detection mechanism further comprises an air tightness detection feeding structure 504, wherein the air tightness detection feeding structure 504 comprises a feeding shifting mechanism, a feeding supporting column 5042, a feeding rodless cylinder 5043, a feeding lifting cylinder 5044 and a feeding vacuum suction head 5045;

the supporting part of the shifting mechanism for feeding is fixedly provided with the air tightness detection seat 5001, and the shifting mechanism for feeding is used for moving the air tightness detection seat 5001 back and forth between two transverse positions;

the lower extreme fixed mounting of support column 5042 for the material loading is in position on one side of seat 5001 is detected to the gas tightness, just upper end fixed mounting of support column 5042 for the material loading is horizontal rodless cylinder 5043 for the material loading, fixed mounting has the push rod down on rodless cylinder 5043 for the material loading the lift cylinder 5044 for the material loading, lift cylinder 5044 for the material loading's push rod lower extreme fixed mounting have vacuum suction head 5045 for the material loading, vacuum suction head 5045 for the material loading can shift to the direct drive group in the assembly seat 102 on the direct drive group assembly quality under the drive of rodless cylinder 5043 for the material loading and lift cylinder 5044 for the material loading in the slot is used in the detection of seat 5001 is detected to the gas tightness.

By adopting the feeding structure 504 for air tightness detection, automatic material taking of the direct transmission set assembled on the direct transmission set assembling device can be realized, and the material is transferred to the air tightness detection mechanism of the direct transmission set to quickly complete air tightness detection, so that the assembling and detecting efficiency of the direct transmission set is improved, and the product quality of the direct transmission set can be better ensured.

The displacement mechanism is a

rotary detection disc

5041, and 2 airtight detection seats 5001 are uniformly arranged on the rotary detection disc 5041 in the circumferential direction at intervals.

The rotary disc 5041 for detection is simpler in structure, smaller in occupied area required by installation, easier to arrange and use and capable of reducing the volume of the direct transmission set air tightness detection mechanism.

In addition, 2 setting of gas tightness detection seat 5001, can be when one detects, another material loading to detection efficiency has further been promoted manyfold again.

The direct transmission set airtightness detection mechanism further comprises an inflation structure which can be inserted into or far away from the inflation interface, and the inflation structure comprises an inflator 5051 and an inflation cylinder 5052;

the inflator 5051 is arranged right opposite to the inflation interface, and an inflation hole and an O-shaped sealing ring surrounding the inflation hole are arranged on the end face, right opposite to the inflation interface, of the inflator 5051; the other end of the inflator 5051 is fixedly connected with a push rod of the inflation cylinder 5052; the upper surface of the inflator 5051 is provided with a gas pipe joint which is in sealed communication with the inflation hole.

After the inflation structure is adopted, the inflation cylinder 5052 can retract before the detection rotary disc 5041 rotates, so that interference to the detection rotary disc 5041 or winding of an inflation pipe is avoided, and the running and using reliability of each mechanism is better ensured.

Wherein, direct drive group gas tightness detection mechanism still includes photoelectric switch, photoelectric switch follows the length direction interval distribution of rodless cylinder 5043 is used in the material loading, just photoelectric switch with the position of a plurality of detection slots is just right on gas tightness detection seat 5001 one by one, photoelectric switch's probe can just be to the direct drive group of vacuum suction head 5045 for the material loading and holding.

Thus, the discharge position of the feeding vacuum suction head 5045 can be accurately positioned by the photoelectric switch, and the accurate discharge in the plurality of detection slots can be ensured.

The above is only a preferred embodiment of the present invention, and it should be noted that several modifications and improvements made by those skilled in the art without departing from the technical solution should also be considered as falling within the scope of the claims.

Claims

1. Direct drive group gas tightness detection mechanism, its characterized in that: comprises an air tightness detection seat and a compression structure;

the pressing structure comprises a supporting column for pressing, a cylinder for pressing and a pressing block; the lower end of the supporting column for pressing is fixed at a position close to the air tightness detection seat; the pressing cylinder is vertically fixed at the upper end for pressing, the push rod faces downwards, the press block is fixedly installed on the push rod, the lower end of the press block is provided with a pressing part, and the pressing part is used for pressing the direct transmission set inserted into the detection slot and enabling the annular bulge of the shaft sleeve of the direct transmission set to abut against the sealing washer to realize sealing;

the upper part of the pressing block is also provided with a driving lever driving structure, and the driving lever driving structure comprises a motor, a driving shaft, a rotating column and a supporting plate; the motor and the supporting plate are fixed on the pressing block, and the number of the driving shafts and the number of the rotating columns are equal to that of the slots for detection; the driving shaft is rotatably arranged on the supporting plate and is vertically opposite to the detection slots one by one;

2. The direct drive unit airtightness detection mechanism according to claim 1, wherein: the air tightness detection seat is of a strip-shaped block structure, and a plurality of detection slots are formed in the air tightness detection seat at intervals along the length direction; the pressing block is provided with a plurality of pressing parts which are opposite to the detection slots one by one.

3. The direct drive unit airtightness detection mechanism according to claim 2, wherein: the blanking structure comprises a support pillar for blanking, a rodless cylinder for blanking, a lifting cylinder for blanking and a gas claw for blanking;

the rodless cylinder for blanking is fixedly arranged on the supporting column for blanking in a transverse mode integrally, and a movable block of the rodless cylinder for blanking can be close to or far away from the air tightness detection seat; the movable block is fixed with the lifting cylinder for unloading through the support frame, and fixed mounting has a supporting flat board of horizontal bar on this lifting cylinder for unloading's the push rod, on the supporting flat board along length direction fixed mounting with each detect with the slot one-to-one a plurality of gas claw for the unloading, each gas claw for the unloading is used for stretching out the outside part of slot for the detection on the axle sleeve that presss from both sides tight each direct drive group.

4. The direct drive unit airtightness detection mechanism according to claim 3, wherein: and a qualified product box and an unqualified product box are sequentially placed under the retraction stroke of the pneumatic claw for blanking.

5. The direct drive unit airtightness detection mechanism according to claim 1, wherein: the number of the motors is one, and the driving shafts are connected with the rotating shafts of the motors through gear sets.

6. The direct drive unit airtightness detection mechanism according to claim 1, wherein: the air tightness detection feeding structure comprises a feeding shifting mechanism, a feeding supporting column, a feeding rodless cylinder, a feeding lifting cylinder and a feeding vacuum suction head;

the supporting part of the shifting mechanism for feeding is fixedly provided with the air tightness detection seat, and the shifting mechanism for feeding is used for moving the air tightness detection seat back and forth between two transverse positions;

the lower extreme fixed mounting of support post for the material loading is in position on one side of the gas tightness detection seat, just the upper end fixed mounting of support post for the material loading is horizontal rodless cylinder for the material loading, fixed mounting has the push rod down on the movable block of rodless cylinder for the material loading lift cylinder for the material loading, the push rod lower extreme fixed mounting of lift cylinder for the material loading vacuum suction head for the material loading, vacuum suction head for the material loading can be driven down at rodless cylinder for the material loading and lift cylinder for the material loading and will directly transmit the direct transmission group in the assembly seat on the assembly quality control seat and shift to in the slot for the detection of gas tightness detection seat.

7. The direct drive unit airtightness detection mechanism according to claim 6, wherein: the shifting mechanism is a rotary disc for detection, and 2 air tightness detection seats are uniformly arranged on the rotary disc for detection at intervals in the circumferential direction.

8. The direct drive unit airtightness detection mechanism according to claim 7, wherein: the inflatable structure can be inserted into or far away from the inflation interface and comprises an inflator pump and an inflation cylinder;

the inflator is arranged right opposite to the inflation connector, and an inflation hole and an O-shaped sealing ring surrounding the inflation hole are arranged on the end face, right opposite to the inflation connector, of the inflator; the other end of the inflator is fixedly connected with a push rod of the cylinder for inflation; and the upper surface of the inflator is provided with an air pipe joint which is hermetically communicated with the inflation hole.

9. The direct drive unit airtightness detection mechanism according to claim 6, wherein: the automatic air tightness detection device is characterized by further comprising photoelectric switches, the photoelectric switches are distributed at intervals along the length direction of the rodless cylinder for feeding, the photoelectric switches are opposite to the positions of the detection slots on the air tightness detection seat one by one, and probes of the photoelectric switches can be opposite to a direct transmission set sucked by the vacuum suction head for feeding.