CN113155367A

CN113155367A - Elbow pipe fitting gas tightness test presser

Info

Publication number: CN113155367A
Application number: CN202110535401.7A
Authority: CN
Inventors: 房广鲁; 孙昊楠; 付应臣; 胡乃帅
Original assignee: Jinan Kede Intelligent Technology Co ltd
Current assignee: Jinan Kede Intelligent Technology Co ltd
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2021-07-23

Abstract

The invention discloses a punching machine for testing the air tightness of an elbow pipe fitting. A punching machine for testing the air tightness of an elbow pipe fitting comprises a strip-shaped workbench, a well sub-frame, a three-section type elbow pipe fitting jacking device, an elbow pipe fitting vibration parallel sorting attitude adjusting and conveying device, a parallel sorting elbow pipe fitting feeding and conveying trough, a parallel sorting elbow pipe fitting discharging and conveying trough, a parallel sorting elbow pipe fitting shifting and conveying device, an elbow pipe fitting air tightness pressure-resistant testing device and an elbow pipe fitting pushing device unqualified in air tightness pressure-resistant testing; the elbow pipe fitting air tightness pressure-resistant test compresses the air cylinder lever guide device, and the elbow pipe fitting parallel sequencing single piece passes through the limiting adjustment device and the parallel sequencing elbow pipe fitting operation limiting device. The automatic feeding and the automatic air-tightness pressure-resistant test of the elbow pipe fitting are realized, the working efficiency is improved, and the labor intensity of workers and the production cost of elbow pipe fitting products are reduced.

Description

Elbow pipe fitting gas tightness test presser

Technical Field

The invention belongs to a pipe connection casting air tightness test pressing device, in particular to an elbow pipe fitting air tightness test pressing machine.

Background

The elbow pipe fitting is a common pipeline connecting piece, and the social demand is very large. After the elbow pipe fitting product is processed, the air tightness pressure-resistant test is required, the existing air tightness testing machine mostly adopts manual piece placing and piece discharging, the labor intensity of operators is high, the working efficiency is low, and the production cost of the elbow pipe fitting product is high; meanwhile, the existing air tightness testing machine is provided with two leak detectors, each leak detector adopts a sensor and performs air tightness pressure-resistant test on four elbow pipe fittings, when leakage parts are detected, the leakage parts can not be determined directly, the positions of the leakage parts need to be changed to perform multiple tests, and the leakage parts can be determined. The problems that how to realize automatic feeding and automatic air-tightness pressure-resistant test of the elbow pipe fitting, improve the work efficiency of the air-tightness pressure-resistant test of the elbow pipe fitting, and reduce the labor intensity of operators of the air-tightness pressure-resistant test product of the elbow pipe fitting and the production cost of the elbow pipe fitting product need to be solved.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: provides a punching machine for testing the air tightness of an elbow pipe fitting. The automatic feeding and the automatic air-tightness pressure-resistant test of the elbow pipe fitting can be realized by using the elbow pipe fitting air-tightness test pressing machine, the work efficiency of the elbow pipe fitting air-tightness pressure-resistant test is improved, and the labor intensity of operation workers of elbow pipe fitting air-tightness pressure-resistant test products and the production cost of the elbow pipe fitting products are reduced.

The technical scheme for solving the technical problems is as follows: the utility model provides an elbow pipe fitting gas tightness test presser, includes the bar frame, installs bar workstation, the derrick in the bar frame, is provided with left and right vertical bar board on the derrick top surface, and the derrick is installed on the left position of bar workstation top surface, installs at the left syllogic elbow pipe fitting jacking device of bar frame, characterized by: the device also comprises an elbow pipe fitting vibration parallel sorting attitude adjusting and conveying device, a parallel sorting elbow pipe fitting feeding and conveying trough, a parallel sorting elbow pipe fitting discharging and conveying trough, a parallel sorting elbow pipe fitting shifting and conveying device, an elbow pipe fitting air tightness pressure resistance testing device, an elbow pipe fitting pushing device with unqualified air tightness pressure resistance testing, and an air pressure and electrical appliance device, wherein the air pressure and electrical appliance device is controlled by a PLC control cabinet;

the elbow pipe fitting air tightness pressure-tight test device is a differential pressure transmitter, the differential pressure transmitter comprises an elbow pipe fitting air tightness pressure-tight test pressing cylinder and an elbow pipe fitting air tightness pressure-tight test pressing head, the elbow pipe fitting air tightness pressure-tight test pressing head is an 8 elbow pipe fitting air tightness pressure-tight test pressing head, the elbow pipe fitting air tightness pressure-tight test pressing cylinder is installed on the position, close to the right side, of the top surface of the left and right longitudinal strip plates arranged on the well sub frame by using an installation seat, the elbow pipe fitting air tightness pressure-tight test pressing cylinder installed on the position, close to the right side, of the top surface of the left and right longitudinal strip plates arranged on the well sub frame penetrates through holes formed in the left and right longitudinal strip plates and extends into a well sub frame space below the left and right longitudinal strip plates, the end part of the elbow pipe fitting air tightness pressure-proof test pressing cylinder lever extending into the space of the left and right longitudinal strip plates below the well sub-frame is fixedly connected with the upper top surface of an 8-elbow pipe fitting air tightness pressure-proof test head by using a connecting piece; the elbow pipe fitting airtightness pressure-tight test pressing cylinder lever guiding device comprises 2 guide rods and 2 guide sleeves, wherein the 2 guide sleeves are respectively matched with the 2 guide rods, the 2 guide sleeves are installed on left and right longitudinal strip plates of a well frame on the left and right sides of the elbow pipe fitting airtightness pressure-tight test pressing cylinder, and one end of each of the 2 guide rods sequentially and vertically penetrates through the 2 guide sleeves and is fixedly connected with the upper top surface of an 8-elbow pipe fitting airtightness pressure-tight test pressure testing head;

the elbow pipe fitting vibration parallel sorting attitude adjustment conveying device comprises a pneumatic vibrator, a guide rail groove and 2 spring strips, wherein the transverse vertical section of the guide rail groove is in a V shape, two groove walls of the guide rail groove with the transverse vertical section in the V shape are perpendicular to each other, the guide rail groove with the transverse vertical section in the V shape and two groove walls perpendicular to each other uses a left connecting piece and a right connecting piece which are arranged at two ends of each spring strip and 2 spring strips, the left connecting piece and the right connecting piece are fixedly arranged on the top surface of the rear side wall of an installation box of the three-section elbow pipe fitting jacking device, the lower bottom surface of the groove bottom of the guide rail groove with the transverse vertical section in the V shape and two groove walls perpendicular to each other uses a pneumatic vibrator installation seat, the pneumatic vibrator generates translation and shaking vibration force to lift the elbow pipe fitting which enters the guide rail groove with the transverse vertical section in the V shape and two groove walls perpendicular to each other through the three-section elbow pipe fitting jacking device, and the elbow pipe fitting in the guide rail groove with the transverse vertical section in the V shape and two groove walls perpendicular to parallel to each other Sequencing and running to the right end part of the system;

the horizontal vertical section of the parallel sequencing elbow pipe fitting feeding and conveying trough is in a V shape, two trough walls of the parallel sequencing elbow pipe fitting feeding and conveying trough are perpendicular, the parallel sequencing elbow pipe fitting feeding and conveying trough penetrates through a left and a right sides of a well sub-frame by using a parallel sequencing elbow pipe fitting feeding and conveying trough mounting support and is mounted on a longitudinal central line of the top surface of a bar-shaped workbench below the well sub-frame, and the left end part of the parallel sequencing elbow pipe fitting feeding and conveying trough, which is mounted on the longitudinal central line of the top surface of the bar-shaped workbench below the well sub-frame, is in clearance contact with the right end part of a guide rail groove with the V-shaped horizontal vertical section; when two mutually vertical end surfaces of the elbow pipe fitting abut against the inner surfaces of two mutually vertical groove walls with V-shaped guide rail grooves in the transverse vertical section and run to a discharge port at the right end part of the elbow pipe fitting in a sequencing way, the elbow pipe fitting in the subsequent sequencing way can be pushed to run to a material receiving port at the left end part of a feeding and conveying trough of the elbow pipe fitting in the parallel sequencing way in the transverse vertical section and run to the feeding and conveying trough of the elbow pipe fitting in the parallel sequencing way along the inner surfaces of the two mutually vertical groove walls; the elbow pipe fitting parallel sorting single piece is an inverted U-shaped split ring matched with the elbow pipe fitting through the limiting adjusting device, the inverted U-shaped split ring matched with the elbow pipe fitting spans the position of the transverse vertical section, the transverse vertical section of the inverted U-shaped split ring is V-shaped, the feeding and conveying trough of the elbow pipe fitting parallel sorting single piece is close to the strip-shaped workbench and is attached to the position of the bottom surface of the left strip-shaped plate transversely arranged on the well sub-frame, the lower end parts of two support legs, which are arranged on the bottom surface of the left strip-shaped plate transversely arranged on the well sub-frame, of the inverted U-shaped split ring are fixedly connected with the top surface of the corresponding strip-shaped workbench, the feeding and conveying trough of the elbow pipe fitting parallel sorting pipe fitting transverse vertical section, the inverted U-shaped split ring is attached to the position of the bottom surface of the left strip-shaped plate transversely arranged on the well sub-frame and can only allow the parallel sorting elbow pipe fitting to pass through the feeding and convey the feeding and conveying single piece of the elbow pipe fitting parallel sorting single piece through the transverse vertical section, which is V-shaped, the position of the elbow pipe fitting parallel sorting single piece is V-shaped The operation in the feeding groove;

the left end part of the parallel sequencing elbow pipe unloading conveying trough which is arranged on the longitudinal central line of the top surface of the bar-shaped workbench on the outer side of the right strip-shaped plate transversely arranged on the well sub-frame in a left and right way penetrates through the space between the lower bottom surface of the right strip-shaped plate of the well sub-frame (not shown in the attached drawing of the specification) and the corresponding bar-shaped workbench and is in clearance contact with the right end part of the parallel sequencing elbow pipe loading conveying trough; the elbow pipe fitting ejecting device comprises 8 elbow pipe fitting ejecting cylinders with unqualified airtightness pressure-resistant tests, elbow pipe fitting push blocks are mounted at the end parts of levers of the elbow pipe fitting ejecting cylinders with unqualified airtightness pressure-resistant tests respectively by using connecting pieces, elbow pipe fitting ejecting openings corresponding to the elbow pipe fitting push blocks are sequentially arranged on the front side groove wall of a parallel sequencing elbow pipe fitting unloading and conveying trough, elbow pipe fitting ejecting openings corresponding to the 8 through holes in the front side groove wall of the parallel sequencing elbow pipe fitting unloading and conveying trough are connected to elbow pipe fitting ejecting openings arranged on the rear side groove wall of the parallel sequencing elbow pipe fitting unloading and conveying trough, 8 elbow pipe fitting ejecting cylinders with unqualified airtightness pressure-resistant tests sequentially correspond to the 8 through holes in the front side groove wall of the parallel sequencing elbow pipe fitting unloading and conveying trough and are mounted on a flat mounting seat The top surface of a strip-shaped workbench at the front side of the row sorting elbow pipe fitting unloading and conveying trough; 8 elbow pipe fitting test results of the pressure head test of the 8 elbow pipe fittings of the differential pressure transmitter are transmitted to 8 elbow pipe fitting ejection cylinders with unqualified airtightness pressure resistance test by the PLC control cabinet and sequentially correspond to the first ejection cylinders and the second ejection cylinders of the 8 elbow pipe fittings with unqualified airtightness pressure resistance test;

the parallel sequencing elbow pipe fitting shifting piece conveying device comprises an elbow pipe fitting shifting cylinder, a double-finger shifting claw mounting bar-shaped block, a sliding shaft sleeve, a fixed shaft sleeve, a sliding shaft sleeve and fixed shaft sleeve mounting shaft rotation direction change pushing cylinder, a sliding shaft sleeve and fixed shaft sleeve mounting shaft rotation direction change pushing rod, a double-finger shifting claw is an 8-elbow pipe fitting double-finger shifting claw, bar-shaped keys are arranged on the outer surfaces of the sliding shaft sleeve and fixed shaft sleeve mounting shaft in the axial direction, bar-shaped key grooves matched with the bar-shaped keys on the outer surfaces of the sliding shaft sleeve and fixed shaft sleeve mounting shaft are respectively arranged on the inner surfaces of the sliding shaft sleeve and the fixed shaft sleeve, and an annular groove is also arranged on the outer surface of the sliding shaft sleeve; the sliding shaft sleeve with the strip-shaped keys arranged on the outer surface in the axial direction and the fixed shaft sleeve mounting shaft are respectively and longitudinally mounted on the lower positions of the inner vertical surfaces of the left and right strip-shaped plates transversely arranged on the well frame by using a left and right bearing with a seat in the left and right directions, the sliding shaft sleeve with the annular groove arranged on the outer surface is slidably sleeved on the sliding shaft sleeve with the strip-shaped keys arranged on the outer surface and the fixed shaft sleeve mounting shaft by using the strip-shaped key groove arranged on the inner surface, the sliding shaft sleeve further comprises a sliding shaft sleeve pull rod, and the other end of the sliding shaft sleeve pull rod is provided with a pull ring matched with the annular groove on the outer surface of the sliding shaft sleeve; the fixed shaft sleeve is fixedly arranged on a sliding shaft sleeve and a fixed shaft sleeve mounting shaft, the outer surface of the sliding shaft sleeve is provided with a bar-shaped key, the bar-shaped key is arranged on the inner surface of the fixed shaft sleeve, the fixed shaft sleeve is fixedly arranged on the sliding shaft sleeve and the fixed shaft sleeve mounting shaft, the fixed shaft sleeve is close to the left belt seat bearing, and one end of a push rod, which changes the rotation direction of the sliding shaft sleeve and the fixed shaft sleeve mounting shaft, is vertically and fixedly arranged on the fixed shaft sleeve by a connecting piece; the elbow pipe fitting pulling cylinder is installed on the middle lower part of the outer vertical surface of the right strip-shaped plate transversely arranged on the derrick by using an elbow pipe fitting pulling cylinder installation seat, the end part of a lever of the elbow pipe fitting pulling cylinder is fixedly connected with one end of a sliding shaft sleeve pull rod by using a connecting piece, a pull ring sleeve arranged at the other end of the sliding shaft sleeve pull rod is installed in an annular groove arranged on the outer surface of the sliding shaft sleeve, and the axis of the sliding shaft sleeve pull rod in the annular groove arranged on the outer surface of the sliding shaft sleeve by using a pull ring sleeve arranged at the other end of the sliding shaft sleeve pull rod and the axis of the sliding shaft sleeve are in the same vertical plane; the double-finger pusher dog mounting bar-shaped block is mounted on the outer surface of one side of the lower part of the sliding shaft sleeve, which faces the parallel sequencing elbow pipe fitting feeding and conveying trough, by using a bar-shaped connecting block, and the 8-elbow pipe fitting double-finger pusher dog is transversely mounted on the lower part of the inner side surface of the double-finger pusher dog mounting bar-shaped block;

the change of the rotating direction of the mounting shafts of the sliding shaft sleeve and the fixed shaft sleeve pushes a cylinder to be transversely and parallelly mounted on the inner vertical surface of a rear side strip-shaped plate longitudinally arranged on the well sub-frame by using a mounting seat, the change of the rotating direction of the mounting shafts of the sliding shaft sleeve and the fixed shaft sleeve which are transversely and parallelly mounted on the inner vertical surface of the rear side strip-shaped plate longitudinally arranged on the well sub-frame pushes the cylinder to be close to a left side strip-shaped plate transversely arranged on the well sub-frame, the change of the rotating direction of the mounting shafts of the sliding shaft sleeve and the fixed shaft sleeve pushes the lever end of the cylinder to be hinged and connected with the sliding shaft sleeve vertically and fixedly mounted on the fixed shaft sleeve and one end of a change push rod of the rotating direction of the mounting shafts of the fixed shaft sleeve by using a connecting piece, and in an initial state, a double-, a strip-shaped connecting block and a double-finger pusher dog on the outer surface of one side of the parallel sequencing elbow pipe fitting feeding and conveying trough facing the lower part of the sliding shaft sleeve are used for mounting the strip-shaped block in a vertical state, and a gap for the upper and lower running of the 8-elbow pipe fitting air tightness pressure resistance test pressure head is formed between the front side vertical surface of the double-finger pusher dog mounting strip-shaped block in the vertical state and the rear side vertical surface of the 8-elbow pipe fitting air tightness pressure resistance test pressure head;

the parallel sequencing elbow pipe fitting operation limiting device comprises a parallel sequencing elbow pipe fitting operation limiting air cylinder and a parallel sequencing elbow pipe fitting operation limiting inserting plate, the parallel sequencing elbow pipe fitting operation limiting air cylinder is installed at the upper middle part of a rear side strip-shaped plate longitudinally arranged on a well sub-frame in a transverse inclined mode through a mounting seat, the axis of the parallel sequencing elbow pipe fitting operation limiting air cylinder installed at the upper middle part of the rear side strip-shaped plate longitudinally arranged on the well sub-frame in a transverse inclined mode through the mounting seat is on the same plane with the inner surface of the rear groove wall of a feeding groove of the parallel sequencing elbow pipe fitting, the lever end part of the parallel sequencing elbow pipe fitting operation limiting air cylinder installed at the upper middle part of the rear side strip-shaped plate longitudinally arranged on the well sub-frame in a transverse inclined mode through the mounting seat is fixedly connected with one end of the parallel sequencing elbow pipe fitting operation limiting inserting plate through a connecting piece, in an initial state, the other end of a parallel sequencing elbow pipe fitting operation limiting plugboard fixedly connected with the end part of a parallel sequencing elbow pipe fitting operation limiting air cylinder lever by using a connecting piece is inserted into a parallel sequencing elbow pipe fitting feeding and conveying trough to limit the operation of the parallel sequencing elbow pipe fitting operating in the parallel sequencing elbow pipe fitting feeding and conveying trough, and at least 8 parallel sequencing elbow pipe fittings can be accommodated in the parallel sequencing elbow pipe fitting feeding and conveying trough between the left vertical surface of the parallel sequencing elbow pipe fitting operation limiting plugboard and the right vertical surface of a sliding shaft sleeve and a fixed shaft sleeve mounting shaft in the rotating direction change push rod shadow; when the rotating direction of the mounting shaft of the fixed shaft sleeve changes the right vertical surface under the shadow of the push rod and the left vertical surface of the parallel sequencing elbow pipe operation limiting plugboard, at least 8 parallel sequencing elbow pipes are accommodated and gathered in the parallel sequencing elbow pipe feeding conveying trough, the parallel sequencing elbow pipe operation limiting air cylinder acts, the parallel sequencing elbow pipe operation limiting plugboard is separated from the parallel sequencing elbow pipe feeding conveying trough, the rotating direction of the mounting shaft of the sliding shaft sleeve and the fixed shaft sleeve changes to push the air cylinder to act and contract simultaneously, the mounting shaft of the sliding shaft sleeve and the fixed shaft sleeve rotates towards the inner side of the well frame, the double-finger shifting claws of the 8 elbow pipes mounted on the double-finger shifting claw mounting strip-shaped block stretch into the parallel sequencing elbow pipe feeding conveying trough to clamp the 8 elbow pipes in the parallel sequencing elbow pipe feeding conveying trough, and the elbow pipe shifting air cylinder acts to pull the double-finger shifting claws of the 8 elbow pipes to convey the 8 elbow pipes to the elbow pipe feeding conveying trough along the parallel sequencing elbow pipe feeding conveying trough The pipe fitting air tightness pressure-resistance testing device comprises an air tightness pressure-resistance testing station and elbow pipe fitting pushing-out device stations, wherein 8 elbow pipe fittings which finish air tightness pressure-resistance testing in advance are pushed to the elbow pipe fitting air tightness pressure-resistance testing unqualified elbow pipe fitting pushing-out device stations of a parallel sequencing elbow pipe fitting unloading conveying trough along a parallel sequencing elbow pipe fitting feeding conveying trough at the air tightness pressure-resistance testing station of the elbow pipe fitting air tightness pressure-resistance testing device; meanwhile, the operation of the parallel sequencing elbow pipe fittings limits the resetting of the air cylinder, the resetting of the elbow pipe fittings pull-pull air cylinder, and the rotation direction of the mounting shafts of the sliding shaft sleeve and the fixed shaft sleeve changes to push the resetting of the air cylinder; the elbow pipe fitting air tightness pressure-resistance test pressing cylinder acts to push the 8 elbow pipe fitting air tightness pressure-resistance test pressing head to perform air tightness pressure-resistance test on 8 elbow pipe fittings located at an air tightness pressure-resistance test station of the elbow pipe fitting air tightness pressure-resistance test device; when one or more elbow pipe fittings in 8 elbow pipe fittings of an 8-elbow pipe fitting air tightness pressure resistance test pressure head test of the differential pressure transmitter are unqualified in air tightness pressure resistance test, the PLC control cabinet sends a corresponding signal instruction, one or more elbow pipe fittings which are unqualified in air tightness pressure resistance test are pushed out of the air cylinder to act corresponding to elbow pipe fittings which are unqualified in air tightness pressure resistance test, and one or more elbow pipe fittings which are unqualified in air tightness pressure resistance test are pushed out and fall into an elbow pipe fitting bin which is unqualified in air tightness pressure resistance test along an elbow pipe fitting chute which is unqualified in air tightness pressure resistance test; the elbow pipe fitting qualified for the air tightness pressure-resistant test runs along the discharge conveying trough of the parallel sequencing elbow pipe fitting and falls into the bin of the elbow pipe fitting qualified for the air tightness pressure-resistant test.

The three-section type elbow pipe fitting jacking device, the pneumatic vibrator and the differential pressure transmitter all adopt the prior art.

The working process of the invention is as follows: sending the elbow pipe fitting to be subjected to the gas tightness pressure resistance test into a three-section elbow pipe fitting jacking device, starting the three-section elbow pipe fitting jacking device, enabling a pneumatic vibrator to generate translational and shaking vibration force vibration to lift the elbow pipe fitting to be subjected to the gas tightness pressure resistance test into a guide rail groove with a V-shaped transverse vertical section and two perpendicular groove walls through the three-section elbow pipe fitting jacking device, enabling the elbow pipe fitting to be subjected to the gas tightness pressure resistance test to run to the right end part of the elbow pipe fitting in a parallel sequencing mode in the guide rail groove with the V-shaped transverse vertical section and the two perpendicular groove walls, and enabling the two perpendicular end surfaces of the elbow pipe fitting to be subjected to the gas tightness pressure resistance test to run to the right end part of the elbow pipe fitting to be subjected to the gas tightness pressure resistance test to be attached to the inner surfaces of the two perpendicular groove walls of the guide rail groove with the V-shaped transverse vertical section; when two mutually vertical end surfaces of the elbow pipe fitting to be tested for air tightness abut against the inner surfaces of two mutually vertical groove walls with V-shaped guide rail grooves in the transverse and vertical cross sections to be sequenced and run to the discharge port at the right end part, the elbow pipe fitting to be sequenced and run in sequence is pushed by the elbow pipe fitting to be sequenced and run in sequence to the left end part of the feeding and conveying groove of the elbow pipe fitting to be sequenced and run in parallel in the transverse and vertical cross section in V-shaped, and the elbow pipe fitting to be tested for air tightness is singly passed through the inverted U-shaped split ring and runs to the lever end part of the parallel sequencing elbow pipe fitting running and limiting cylinder through the inverted U-shaped split ring under the limiting and adjusting action of the inverted U-shaped split ring of the elbow pipe fitting parallel sequencing single piece through the limiting and adjusting device, the parallel sequencing elbow pipe fitting to be tested for air tightness runs and limited in the feeding and conveying groove of the elbow pipe fitting by the left vertical surface of the parallel sequencing and parallel elbow pipe fitting running and limiting insertion plate fixedly connected through the elbow connecting piece, at least 8 parallel sequencing elbow pipe fittings to be subjected to air tightness pressure-proof test are accommodated in a parallel sequencing elbow pipe fitting feeding and conveying trough between the left vertical surface of the operation limiting inserting plate and the right vertical surface of the sliding shaft sleeve and the fixed shaft sleeve installation shaft under the condition that the rotating direction of the installation shaft changes the push rod; when the rotating direction of the fixed shaft sleeve mounting shaft changes and the right vertical surface under the shadow of the push rod and the parallel sequencing elbow pipe operation limiting inserting plate contain and gather at least 8 parallel sequencing elbow pipe fittings to be tested for air tightness, the parallel sequencing elbow pipe operation limiting air cylinder acts, the parallel sequencing elbow pipe operation limiting inserting plate is separated from the parallel sequencing elbow pipe fitting feeding and conveying groove, the rotating direction of the sliding shaft sleeve and the fixed shaft sleeve mounting shaft changes and pushes the air cylinder to act and contract simultaneously, the sliding shaft sleeve and the fixed shaft sleeve mounting shaft rotate towards the inner side of the well frame, the double-finger shifting claw of the 8 elbow pipe fittings arranged on the double-finger shifting claw mounting block acts to extend into the parallel sequencing elbow pipe fitting feeding and conveying groove to clamp the 8 elbow pipes to be tested for air tightness in the parallel sequencing elbow pipe fitting feeding and conveying groove, the elbow pipe fitting pulling cylinder acts to pull the 8 elbow pipe fitting double-finger pusher dogs to convey 8 elbow pipe fittings to be subjected to gas tightness pressure resistance test to an air tightness pressure resistance test station of the elbow pipe fitting gas tightness pressure resistance test device along the parallel sorting elbow pipe fitting feeding conveying trough and sequentially push the 8 elbow pipe fittings subjected to gas tightness pressure resistance test to a station of an elbow pipe fitting pushing device unqualified in the gas tightness pressure resistance test of the elbow pipe fitting along the parallel sorting elbow pipe fitting feeding conveying trough at the air tightness pressure resistance test station of the elbow pipe fitting gas tightness pressure resistance test device; meanwhile, the operation of the parallel sequencing elbow pipe fittings limits the resetting of the air cylinder, the resetting of the elbow pipe fittings pull-pull air cylinder, and the rotation direction of the mounting shafts of the sliding shaft sleeve and the fixed shaft sleeve changes to push the resetting of the air cylinder; the elbow pipe fitting air tightness pressure-resistance test pressing cylinder acts to push the 8 elbow pipe fitting air tightness pressure-resistance test pressing heads to carry out air tightness pressure-resistance test on 8 elbow pipe fittings to be subjected to air tightness pressure-resistance test at the air tightness pressure-resistance test station of the elbow pipe fitting air tightness pressure-resistance test device; when one or more elbow pipe fittings in 8 elbow pipe fittings of an 8-elbow pipe fitting air tightness pressure resistance test pressure head test of a differential pressure transmitter are unqualified in air tightness pressure resistance test, a PLC control cabinet sends a corresponding signal instruction, one or more elbow pipe fittings which are unqualified in air tightness pressure resistance test are pushed out of an air cylinder to act corresponding to the elbow pipe fittings which are unqualified in air tightness pressure resistance test, one or more elbow pipe fittings which are unqualified in air tightness pressure resistance test are pushed out and fall into an elbow pipe fitting bin which is unqualified in air tightness pressure resistance test along an elbow pipe fitting chute of the unqualified in air tightness pressure resistance test, and the elbow pipe fittings which are qualified in air tightness pressure resistance test run along a parallel sorting elbow pipe fitting unloading conveying chute and fall into the elbow pipe bin which is qualified in air tightness pressure resistance test; the actions are repeated in sequence, the 8 elbow pipe fitting double-finger pusher dogs are sent to the other 8 elbow pipe fittings to be subjected to the air-tightness pressure-resistance test at the air-tightness pressure-resistance test station of the elbow pipe fitting air-tightness pressure-resistance test device to complete the air-tightness pressure-resistance test, and conveying the other 8 elbow pipes subjected to the air tightness pressure-resistant test to the station of the elbow pipe pushing device unqualified in the air tightness pressure-resistant test, sending corresponding signal instructions by the PLC control cabinet again, pushing one or more elbow pipes subjected to the air tightness pressure-resistant test out of the air cylinder corresponding to the elbow pipes subjected to the air tightness pressure-resistant test, pushing one or more elbow pipes subjected to the air tightness pressure-resistant test out and falling into an elbow pipe bin subjected to the air tightness pressure-resistant test along the elbow pipe chute subjected to the air tightness pressure-resistant test, and running the elbow pipes subjected to the air tightness pressure-resistant test along the parallel sorting elbow pipe unloading conveying chute and falling into the elbow pipe bin subjected to the air tightness pressure-resistant test.

The invention has the beneficial effects that: the invention is provided with a strip-shaped frame, a strip-shaped workbench, a well frame and a three-section type elbow pipe jacking device, and is also provided with an elbow pipe vibration parallel sequencing attitude adjusting and conveying device, a parallel sequencing elbow pipe feeding and conveying trough, a parallel sequencing elbow pipe discharging and conveying trough, a parallel sequencing elbow pipe shifting and conveying device, an elbow pipe air tightness pressure-resistant testing device, an elbow pipe pushing device with unqualified air tightness pressure-resistant testing, and an air pressure and electric appliance device; the device is also provided with a compression cylinder lever guide device for the elbow pipe fitting air tightness pressure-resistant test, a limiting adjustment device for parallel sorting single pieces of the elbow pipe fitting and a parallel sorting elbow pipe fitting operation limiting device. The automatic feeding and automatic air-tightness pressure-resistant test device disclosed by the invention realizes the automatic feeding and automatic air-tightness pressure-resistant test of the elbow pipe fitting, improves the working efficiency of the air-tightness pressure-resistant test of the elbow pipe fitting, and reduces the labor intensity of operators of the air-tightness pressure-resistant test product of the elbow pipe fitting and the production cost of the elbow pipe fitting product.

Drawings

The invention is further explained below with reference to the figures and examples;

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of the present invention;

figure 3 is a left side view of the parallel sequencing elbow pipe operation limiting cylinder and the parallel sequencing elbow pipe operation limiting flashboard of the present invention;

in the drawings: 1. the device comprises a strip-shaped frame, 2 a strip-shaped workbench, 3 a well rack, 4 a three-section type elbow pipe fitting jacking device, 5 a parallel sequencing elbow pipe fitting feeding and conveying trough, 6 a parallel sequencing elbow pipe fitting discharging and conveying trough, 7 an elbow pipe fitting airtightness pressure-resistance test pressing cylinder, 8 an elbow pipe fitting airtightness pressure-resistance test pressure head, 9 a guide rod, 10 a guide sleeve, 11 a pneumatic vibrator, 12 a guide rail groove, 13 an inverted U-shaped split ring, 14 an airtightness pressure-resistance test unqualified elbow pipe fitting pushing cylinder, 15 an elbow pipe fitting shifting and pulling cylinder, 16 a double-finger shifting claw, 17 a double-finger shifting claw mounting strip-shaped block, 18 a sliding shaft sleeve, 19 a fixed shaft sleeve, 20 a sliding shaft sleeve and fixed shaft sleeve mounting shaft, 21 a sliding shaft sleeve and fixed shaft sleeve mounting shaft rotation direction change pushing cylinder, 22 a sliding shaft sleeve and fixed shaft sleeve mounting shaft rotation direction change push rod, 23. The device comprises a slide shaft sleeve pull rod, 24 parallel sequencing elbow pipe fitting operation limiting cylinders and 25 parallel sequencing elbow pipe fitting operation limiting insertion plates.

Detailed Description

The present invention is described in further detail below with reference to specific examples.

Example 1

As shown in fig. 1, 2 and 3, the elbow pipe tightness test punching machine comprises a strip-shaped frame 1, a strip-shaped workbench 2 and a well frame 3 which are arranged on the strip-shaped frame 1, wherein the top surface of the well frame 3 is provided with a left longitudinal strip plate and a right longitudinal strip plate, the well frame 3 is arranged on the top surface of the strip-shaped workbench 2 (an observer faces the punching machine, the left side of the observer is the left side of the strip-shaped workbench, the right side of the observer is the right side of the strip-shaped workbench; one side close to the strip-shaped workbench is the front side of the workbench, and one side far away from the strip-shaped workbench is the rear side of the workbench), and a three-section type elbow pipe jacking device 4 arranged on the left side of the strip-shaped frame 1 is characterized in that: the device also comprises an elbow pipe vibration parallel sorting attitude adjusting and conveying device, a parallel sorting elbow pipe feeding and conveying trough 5, a parallel sorting elbow pipe discharging and conveying trough 6, a parallel sorting elbow pipe shifting and conveying device, an elbow pipe air tightness pressure resistance testing device, an elbow pipe pushing device with unqualified air tightness pressure resistance testing, and an air pressure and electrical device; the air pressure and electric appliance device is controlled by a PLC control cabinet

Elbow pipe fitting gas tightness pressure resistance test device is differential pressure transmitter, differential pressure transmitter includes elbow pipe fitting gas tightness pressure test compress cylinder 7, elbow pipe fitting gas tightness pressure resistance test pressure head 8 is 8 elbow pipe fitting gas tightness pressure resistance test pressure heads, elbow pipe fitting gas tightness pressure test compress cylinder 7 uses the mount pad to install on the left side of well subframe 3 settings, right side vertical bar top surface is close to on the position on right side, use the mount pad to install on the left side of well subframe 3 settings, elbow pipe fitting gas tightness pressure resistance test compress cylinder on right side vertical bar top surface is close to the right side position passes a left side, the through-hole of right side vertical bar setting stretches into a left side, in the well subframe 3 space under the right side vertical bar, elbow pipe fitting gas tightness pressure resistance test compress cylinder 7 lever stretches into a left side, the tip in the well subframe space under the right side vertical bar uses the connecting piece and 8 elbow pipe fitting gas tightness pressure resistance test pressure head upper surface solid top surface Fixedly connecting; the elbow pipe fitting airtightness pressure-tight test pressing cylinder lever guiding device comprises 2

guide rods

9 and 2 guide sleeves 10, wherein the 2 guide sleeves 10 are respectively matched with the 2 guide rods 9, the 2 guide sleeves 10 are arranged on left and right longitudinal strip plates arranged on the well frame 3 on the left and right sides of an elbow pipe fitting airtightness pressure-tight test pressing cylinder 7, and one end of each of the 2 guide rods 9 sequentially vertically penetrates through the 2 guide sleeves 10 and is fixedly connected with the upper top surface of an 8-elbow pipe fitting airtightness pressure-tight test pressure testing head;

the elbow pipe fitting vibration parallel sorting attitude adjustment conveying device comprises a pneumatic vibrator 11, a

guide rail groove

12 and 2 spring strips, wherein the transverse vertical section of the guide rail groove 12 is V-shaped, two groove walls of the guide rail groove with the transverse vertical section in the V-shaped shape are perpendicular to each other, the guide rail groove with the transverse vertical section in the V-shaped shape and the two groove walls of the guide rail groove are provided with 2 spring strips and 2 spring strips, the left and right connecting pieces are fixedly arranged on the top surface of the rear side wall of an installation box of a three-section elbow pipe fitting jacking device 4, the pneumatic vibrator 11 is arranged on the bottom surface of the guide rail groove with the transverse vertical section in the V-shaped shape and the two groove walls of the guide rail groove in the V-shaped shape by using a pneumatic vibrator installation seat, the pneumatic vibrator 11 generates translation and shaking vibration force to lift the elbow pipe fitting which enters the guide rail groove with the transverse vertical section in the V-shaped shape and the two groove walls of the guide rail groove in the V-shaped shape by the three-section elbow pipe fitting jacking device 4, and the elbow pipe fitting in the transverse vertical section in the V-shaped groove The guide rail grooves run to the right end part in parallel in sequence;

the horizontal vertical section of the parallel sequencing elbow pipe fitting feeding and conveying trough 5 is in a V shape, two trough walls of the parallel sequencing elbow pipe fitting feeding and conveying trough 5 are perpendicular, the parallel sequencing elbow pipe fitting feeding and conveying trough 5 uses a parallel sequencing elbow pipe fitting feeding and conveying trough mounting support to penetrate through the left and right of a well sub-frame 3 and is mounted on the longitudinal central line of the top surface of a strip-shaped workbench 2 below the well sub-frame 3, and the left end part of the parallel sequencing elbow pipe fitting feeding and conveying trough 5, which is mounted on the longitudinal central line of the top surface of the strip-shaped workbench 2 below the well sub-frame 3, is in clearance contact with the right end part of a guide rail trough with the V-shaped horizontal vertical section; when two mutually vertical end surfaces of the elbow pipe fitting abut against the inner surfaces of two mutually vertical groove walls with V-shaped guide rail grooves in the transverse vertical section and run to a discharge port at the right end part of the elbow pipe fitting in a sequencing way, the elbow pipe fitting in the subsequent sequencing way can be pushed to run to a material receiving port at the left end part of a feeding and conveying trough of the parallel sequencing elbow pipe fitting in the transverse vertical section in a V shape and run to the feeding and conveying trough 5 of the parallel sequencing elbow pipe fitting in a sequencing way along the inner surfaces of the two mutually vertical groove walls; still include elbow pipe fitting parallel sequencing list and pass through spacing adjusting device, elbow pipe fitting parallel sequencing list passes through spacing adjusting device and is the U-shaped split ring 13 of falling with elbow pipe fitting matched with, the U-shaped split ring 13 of falling with elbow pipe fitting matched with spanes horizontal vertical cross-section and is the parallel sequencing elbow pipe fitting material loading transport silo of V font and be close to bar workstation 2 and lean on the position of installing in the left side bar bottom surface that creel 3 transversely set up, install on the left side bar bottom surface that creel 3 transversely sets up two landing leg lower tip that the U-shaped split ring 13 has and corresponding bar workstation 2's top surface fixed connection under the horizontal vertical cross-section is the parallel sequencing elbow pipe fitting material loading transport silo of V font and be close to the bar workstation and lean on and install on the left side bar bottom surface position that creel 3 transversely sets up, the U-shaped split ring 13 can only let parallel sequencing elbow pipe fitting list pass through and be the parallel sequencing elbow pipe fitting list of V font in horizontal vertical cross-section The feeding and conveying trough of the sequencing elbow pipe fitting runs; the part of the elbow pipe fitting air tightness pressure resistance test pressure head 8 of the elbow pipe fitting air tightness pressure resistance test device, which corresponds to the parallel sequencing elbow pipe fitting feeding and conveying trough 5, is an air tightness pressure resistance test station of the elbow pipe fitting air tightness pressure resistance test device;

the parallel sequencing elbow pipe unloading and conveying trough 6 is correspondingly arranged on the longitudinal central line of the top surface of the bar-shaped workbench 2 outside the right bar-shaped plate transversely arranged on the well sub-frame 3 in a left and right way, and the left end part of the parallel sequencing elbow pipe unloading and conveying trough 6 arranged on the longitudinal central line of the top surface of the bar-shaped workbench 2 outside the right bar-shaped plate transversely arranged on the well sub-frame 3 in a left and right way penetrates through the space between the lower bottom surface of the right bar-shaped plate transversely arranged on the well sub-frame 3 and the corresponding bar-shaped workbench 2 to be in clearance contact with the right end part of the parallel sequencing elbow pipe loading and conveying trough 5; the elbow pipe fitting ejection device unqualified in the airtightness and pressure resistance test comprises 8 elbow pipe fitting ejection cylinders 14 unqualified in the airtightness and pressure resistance test, the lever end parts of the 8 elbow pipe fitting ejection cylinders 14 unqualified in the airtightness and pressure resistance test are respectively provided with an elbow pipe fitting push block by using a connecting piece, the front side groove wall of the parallel sequencing elbow pipe fitting unloading and conveying trough 6 is sequentially provided with 8 through holes corresponding to the elbow pipe fitting push block, the rear side groove wall of the parallel sequencing elbow pipe fitting unloading and conveying trough 6 is provided with elbow pipe fitting ejection openings (not shown in the attached drawings of the specification) corresponding to the 8 through holes on the front side groove wall, the elbow pipe fitting ejection openings arranged on the rear side groove wall of the parallel sequencing elbow pipe fitting unloading and conveying trough 6 are connected with an elbow pipe fitting chute (not shown in the attached drawings of the specification), 8 elbow pipe fitting pushing cylinders 14 with unqualified airtightness pressure-resistant tests sequentially correspond to 8 through holes in the front side groove wall of the parallel sequencing elbow pipe fitting unloading conveying trough 6 and are installed on the top surface of a bar-shaped workbench 2 in the front side of the parallel sequencing elbow pipe fitting unloading conveying trough 6 by using an installation seat, and 8 elbow pipe fitting test results of the 8 elbow pipe fitting airtightness pressure-resistant test pressure head test of the differential pressure transmitter are transmitted to the 8 elbow pipe fitting pushing cylinders with unqualified airtightness pressure-resistant test by a PLC control cabinet and sequentially correspond to the 8 elbow pipe fitting pushing cylinders 14I with unqualified airtightness pressure-resistant test; the parts of 8 unqualified elbow pipe pushing cylinders 14 for the pressure-tight test of the elbow pipe tightness pressure-tight test corresponding to the elbow pipe unloading and conveying chute 6 of the parallel sequencing elbow pipe pushing device are pushing stations of the elbow pipe tightness pressure-tight test unqualified elbow pipe pushing device;

the parallel sequencing elbow pipe fitting shifting piece conveying device comprises an elbow pipe fitting shifting cylinder 15, a double-finger shifting claw 16, a double-finger shifting claw mounting bar-shaped block 17, a sliding shaft sleeve 18, a fixed shaft sleeve 19, a sliding shaft sleeve and fixed shaft sleeve mounting shaft 20, a sliding shaft sleeve and fixed shaft sleeve mounting shaft rotation direction changing pushing cylinder 21, a sliding shaft sleeve and fixed shaft sleeve mounting shaft rotation direction changing push rod 22, wherein the double-finger shifting claw is an 8-elbow pipe fitting double-finger shifting claw, bar-shaped keys are arranged on the outer surface axial direction of the sliding shaft sleeve and fixed shaft sleeve mounting shaft 20, bar-shaped key grooves matched with the bar-shaped keys on the outer surface of the sliding shaft sleeve and fixed shaft sleeve mounting shaft 20 are respectively arranged on the inner surfaces of the sliding shaft sleeve 18 and the fixed shaft sleeve 19, and an annular groove is also arranged on the outer surface of the sliding shaft sleeve 18; the sliding shaft sleeve and the fixed shaft sleeve are provided with a bar-shaped key in the axial direction of the outer surface, two ends of the sliding shaft sleeve and the fixed shaft sleeve mounting shaft 20 are respectively longitudinally arranged on the lower parts of the inner vertical surfaces of the left and right bar-shaped plates transversely arranged on the well sub-frame 3 by using a left and right bearing with a seat, the sliding shaft sleeve 18 provided with an annular groove in the outer surface is slidably sleeved on the sliding shaft sleeve and the fixed shaft sleeve mounting shaft 20 provided with the bar-shaped key in the outer surface by using a bar-shaped key groove arranged in the inner surface, the sliding shaft sleeve further comprises a sliding shaft sleeve pull rod 23, and the other end of the sliding shaft sleeve pull rod 23 is provided with a pull ring matched with the annular groove in the outer surface of the sliding shaft sleeve 18; the fixed shaft sleeve 19 is fixedly arranged on a sliding shaft sleeve and a fixed shaft sleeve mounting shaft 20 of which the outer surface is provided with a bar-shaped key by using a bar-shaped key groove and a bar-shaped key which are arranged on the inner surface of the fixed shaft sleeve 19, the fixed shaft sleeve 19 fixedly arranged on the sliding shaft sleeve and the fixed shaft sleeve mounting shaft 20 is close to the left belt seat bearing, and one end of a push rod 22 for changing the rotation direction of the sliding shaft sleeve and the fixed shaft sleeve mounting shaft is vertically and fixedly arranged on the fixed shaft sleeve 19 by using a connecting piece; the elbow pipe fitting pulling cylinder 15 is installed on the middle lower part of the outer vertical surface of the right strip-shaped plate transversely arranged on the well sub-frame 3 by using an elbow pipe fitting pulling cylinder installation seat, the end part of a lever of the elbow pipe fitting pulling cylinder 15 is fixedly connected with one end of a sliding shaft sleeve pull rod 23 by using a connecting piece, a pull ring sleeve arranged at the other end of the sliding shaft sleeve pull rod 23 is installed in an annular groove arranged on the outer surface of the sliding shaft sleeve 18, and the axis of the sliding shaft sleeve pull rod 23 in the annular groove arranged on the outer surface of the sliding shaft sleeve 18 by using a pull ring sleeve arranged at the other end is in the same vertical plane with the axis of the sliding shaft sleeve 18; a double-finger pusher dog mounting strip-shaped block 17 is mounted on the outer surface of the lower part of the sliding shaft sleeve 18, which faces one side of the parallel sequencing elbow pipe fitting feeding and conveying trough 5, by using a strip-shaped connecting block, and a double-finger pusher dog of an 8-elbow pipe fitting is transversely mounted on the lower part of the inner side surface of the double-finger pusher dog mounting strip-shaped block 17;

the change of the rotating direction of the mounting shafts of the sliding shaft sleeve and the fixed shaft sleeve pushes a cylinder 21 to be transversely and parallelly mounted on the inner vertical surface of a rear side strip-shaped plate longitudinally arranged on the well sub-frame 3 by using a mounting seat, the change of the rotating direction of the mounting shafts of the sliding shaft sleeve and the fixed shaft sleeve which are transversely and parallelly mounted on the inner vertical surface of the rear side strip-shaped plate longitudinally arranged on the well sub-frame pushes the cylinder 21 to be close to a left side strip-shaped plate transversely arranged on the well sub-frame 3 by using the mounting seat, the end part of a lever of the change of the rotating direction of the mounting shafts of the sliding shaft sleeve and the fixed shaft sleeve pushes the cylinder 21 to be hinged and connected with one end of a sliding shaft sleeve vertically and fixedly mounted on the fixed shaft sleeve 19 and a change of the rotating direction of the mounting shafts of the fixed shaft sleeve by using a connecting piece, and in an initial state, a double-finger pusher dog of an 8 elbow pipe fitting mounted on a double-finger pusher block 18 connected by using a strip-shaped connecting piece does not contact with a parallel sorting elbow pipe fitting running in a feeding and conveying chute 5, a strip-shaped connecting block and a double-finger pusher dog mounting strip-shaped block 17 on the outer surface of one side of the parallel sequencing elbow pipe fitting feeding and conveying trough 5 at the lower part of the sliding shaft sleeve 18 are in a vertical state, and a gap for the 8-elbow pipe fitting air-tightness pressure-resistance test head to move up and down is formed between the front side vertical surface of the vertical double-finger pusher dog mounting strip-shaped block 17 and the rear side vertical surface of the 8-elbow pipe fitting air-tightness pressure-resistance test head;

the parallel sequencing elbow pipe running limiting device comprises a parallel sequencing elbow pipe running limiting air cylinder 24 and a parallel sequencing elbow pipe running limiting insertion plate 25, wherein the parallel sequencing elbow pipe running limiting air cylinder 24 is transversely obliquely installed at the middle upper part of a rear side strip-shaped plate longitudinally arranged on a well sub-frame 3 by using a mounting seat, the axis of the parallel sequencing elbow pipe running limiting air cylinder 24 which is transversely obliquely installed at the middle upper part of the rear side strip-shaped plate longitudinally arranged on the well sub-frame 3 by using the mounting seat is on the same plane with the inner surface of the rear groove wall of a feeding and conveying trough 5 of the parallel sequencing elbow pipe, the lever end part of the parallel sequencing elbow pipe running limiting air cylinder 24 which is transversely obliquely installed at the middle upper part of the rear side strip-shaped plate longitudinally arranged on the well sub-frame 3 by using the mounting seat is fixedly connected with one end of the parallel sequencing elbow pipe running limiting insertion plate 25 by using a connecting piece, in an initial state, the other end of a parallel sequencing elbow pipe operation limiting inserting plate 25 fixedly connected with the end part of a lever of a parallel sequencing elbow pipe operation limiting air cylinder 24 through a connecting piece is inserted into a parallel sequencing elbow pipe feeding and conveying trough 5 to limit the operation of the parallel sequencing elbow pipe operated in the parallel sequencing elbow pipe feeding and conveying trough 5, and at least 8 parallel sequencing elbow pipes can be accommodated in the parallel sequencing elbow pipe feeding and conveying trough 5 between the left vertical surface of the parallel sequencing elbow pipe operation limiting inserting plate 25 and the right vertical surface of a sliding shaft sleeve and a fixed shaft sleeve installation shaft rotation direction change push rod 22 shadow; when the rotating direction of the fixed shaft sleeve mounting shaft changes, the right vertical surface under the shadow of the push rod 22 and the parallel sequencing elbow pipe operation limiting inserting plate 25 between the parallel sequencing elbow pipe feeding conveying trough 5 contain and gather at least 8 parallel sequencing elbow pipes, the parallel sequencing elbow pipe operation limiting air cylinder 24 acts, the parallel sequencing elbow pipe operation limiting inserting plate 25 is separated from the parallel sequencing elbow pipe feeding conveying trough, the rotating direction of the sliding shaft sleeve and the fixed shaft sleeve mounting shaft changes to push the air cylinder 21 to simultaneously act and contract, the sliding shaft sleeve and the fixed shaft sleeve mounting shaft 20 rotate towards the inner side of the well sub-frame, the 8-elbow pipe double-finger shifting claw mounted on the double-finger shifting claw mounting strip block 17 acts to stretch into the parallel sequencing elbow pipe feeding conveying trough 5 to clamp 8 elbow pipes in the parallel sequencing elbow pipe feeding conveying trough, and the elbow pipe pulling air cylinder 15 acts to pull the 8-elbow pipe double-finger shifting claw to enable the 8 elbow pipes to follow the parallel sequencing elbow pipe feeding conveying trough The feeding and conveying trough 5 is conveyed to an air-tightness pressure-resistance testing station of the elbow pipe fitting air-tightness pressure-resistance testing device, and 8 elbow pipe fittings which are subjected to air-tightness pressure-resistance testing in advance are sequentially pushed to an elbow pipe fitting air-tightness pressure-resistance testing unqualified elbow pipe fitting pushing device station of the parallel sorting elbow pipe fitting unloading and conveying trough 6 along the parallel sorting elbow pipe fitting air-tightness pressure-resistance testing station of the elbow pipe fitting air-tightness pressure-resistance testing device; meanwhile, the parallel sequencing elbow pipe operation limiting cylinder 24 resets, the elbow pipe pulling cylinder 15 resets, and the sliding shaft sleeve and fixed shaft sleeve mounting shaft rotation direction changes to push the cylinder 21 to reset; the elbow pipe fitting air tightness pressure-resistance test pressing cylinder 7 acts to push the 8 elbow pipe fitting air tightness pressure-resistance test pressing heads to perform air tightness pressure-resistance test on 8 elbow pipe fittings located at the air tightness pressure-resistance test station of the elbow pipe fitting air tightness pressure-resistance test device; when one or more elbow pipe fittings in 8 elbow pipe fittings of an 8-elbow pipe fitting air tightness pressure resistance test pressure head test of the differential pressure transmitter are unqualified in air tightness pressure resistance test, the PLC control cabinet sends a corresponding signal instruction, one or more elbow pipe fittings which are unqualified in air tightness pressure resistance test are pushed out of the air cylinder 14 to act correspondingly, and one or more elbow pipe fittings which are unqualified in air tightness pressure resistance test are pushed out and fall into an elbow pipe fitting bin which is unqualified in air tightness pressure resistance test along an elbow pipe fitting chute which is unqualified in air tightness pressure resistance test; the elbow pipe fitting qualified for the air tightness pressure-resistant test runs along the parallel sorting elbow pipe fitting unloading conveying trough 6 and falls into the elbow pipe fitting material box qualified for the air tightness pressure-resistant test.

From the above description, those skilled in the art can make various changes and modifications within the scope of the technical idea of the present invention without departing from the scope of the invention. The present invention is not limited to the details given herein, but is within the ordinary knowledge of those skilled in the art.

Claims

1. The utility model provides an elbow pipe fitting gas tightness test presser, includes the bar frame, installs bar workstation, the derrick in the bar frame, is provided with left and right vertical bar board on the derrick top surface, and the derrick is installed on the left position of bar workstation top surface, installs at the left syllogic elbow pipe fitting jacking device of bar frame, characterized by: the device also comprises an elbow pipe vibration parallel sorting attitude adjusting and conveying device, a parallel sorting elbow pipe feeding and conveying trough, a parallel sorting elbow pipe discharging and conveying trough, a parallel sorting elbow pipe shifting and conveying device, an elbow pipe air tightness pressure resistance testing device, an elbow pipe pushing device with unqualified air tightness pressure resistance testing, and an air pressure and electrical device; the air pressure and electric appliance device is controlled by a PLC control cabinet

The elbow pipe fitting air tightness pressure-tight test device is a differential pressure transmitter, the differential pressure transmitter comprises an elbow pipe fitting air tightness pressure-tight test pressing cylinder and an elbow pipe fitting air tightness pressure-tight test pressing head, the elbow pipe fitting air tightness pressure-tight test pressing head is an 8 elbow pipe fitting air tightness pressure-tight test pressing head, the elbow pipe fitting air tightness pressure-tight test pressing cylinder is installed on the position, close to the right side, of the top surface of the left and right longitudinal strip plates arranged on the well sub-frame by using an installation seat, the elbow pipe fitting air tightness pressure-tight test pressing cylinder installed on the position, close to the right side, of the top surface of the left and right longitudinal strip plates arranged on the well sub-frame by using the installation seat penetrates through holes formed in the left and right longitudinal strip plates and extends into the well sub-frame space below the left and right longitudinal strip plates, the end part of the elbow pipe fitting air tightness pressure-proof test pressing cylinder lever extending into the space of the left and right longitudinal strip plates below the well sub-frame is fixedly connected with the upper top surface of an 8-elbow pipe fitting air tightness pressure-proof test head by using a connecting piece; the elbow pipe fitting airtightness pressure-tight test pressing cylinder lever guiding device comprises 2 guide rods and 2 guide sleeves, wherein the 2 guide sleeves are respectively matched with the 2 guide rods, the 2 guide sleeves are installed on left and right longitudinal strip plates of a well frame on the left and right sides of the elbow pipe fitting airtightness pressure-tight test pressing cylinder, and one end of each of the 2 guide rods sequentially and vertically penetrates through the 2 guide sleeves and is fixedly connected with the upper top surface of an 8-elbow pipe fitting airtightness pressure-tight test pressure testing head;

the elbow pipe fitting vibration parallel sorting attitude adjustment conveying device comprises a pneumatic vibrator, a guide rail groove and 2 spring strips, wherein the transverse vertical section of the guide rail groove is in a V shape, two groove walls of the guide rail groove with the transverse vertical section in the V shape are perpendicular to each other, the guide rail groove with the transverse vertical section in the V shape and two groove walls perpendicular to each other uses a left connecting piece and a right connecting piece which are arranged at two ends of each spring strip and 2 spring strips, the left connecting piece and the right connecting piece are fixedly arranged on the top surface of the rear side wall of an installation box of the three-section elbow pipe fitting jacking device, the lower bottom surface of the groove bottom of the guide rail groove with the transverse vertical section in the V shape and two groove walls perpendicular to each other uses a pneumatic vibrator installation seat, the pneumatic vibrator generates translation and shaking vibration force to lift the elbow pipe fitting which enters the guide rail groove with the transverse vertical section in the V shape and two groove walls perpendicular to each other through the three-section elbow pipe fitting jacking device, and the elbow pipe fitting in the guide rail groove with the transverse vertical section in the V shape and two groove walls perpendicular to parallel sorting attitude Run to its right end;

the change of the rotating direction of the mounting shafts of the sliding shaft sleeve and the fixed shaft sleeve pushes a cylinder to be transversely and parallelly mounted on the inner vertical surface of a rear side strip-shaped plate longitudinally arranged on the well sub-frame by using a mounting seat, the change of the rotating direction of the mounting shafts of the sliding shaft sleeve and the fixed shaft sleeve which are transversely and parallelly mounted on the inner vertical surface of the rear side strip-shaped plate longitudinally arranged on the well sub-frame pushes the cylinder to be close to a left side strip-shaped plate transversely arranged on the well sub-frame, the change of the rotating direction of the mounting shafts of the sliding shaft sleeve and the fixed shaft sleeve pushes the lever end of the cylinder to be hinged and connected with the sliding shaft sleeve vertically and fixedly mounted on the fixed shaft sleeve and one end of a change push rod of the rotating direction of the mounting shafts of the fixed shaft sleeve by using a connecting piece, and in an initial state, a double-finger pusher dog of an 8-elbow pipe fitting mounted on the sliding shaft by using a double-finger pusher block to be connected with a strip-shaped connecting piece is not contacted with a parallel sorting elbow pipe fitting running in a feeding and conveying trough, a strip-shaped connecting block and a double-finger pusher dog on the outer surface of one side of the parallel sequencing elbow pipe fitting feeding and conveying trough facing the lower part of the sliding shaft sleeve are used for mounting the strip-shaped block in a vertical state, and a gap for the upper and lower running of the 8-elbow pipe fitting air tightness pressure resistance test pressure head is formed between the front side vertical surface of the double-finger pusher dog mounting strip-shaped block in the vertical state and the rear side vertical surface of the 8-elbow pipe fitting air tightness pressure resistance test pressure head;