CN114682873B

CN114682873B - Welding tool control system based on pressure sensor

Info

Publication number: CN114682873B
Application number: CN202110034994.9A
Authority: CN
Inventors: 杨小华; 朱建
Original assignee: CHONGQING WECAN PRECISION INSTRUMENTS Co
Current assignee: CHONGQING WECAN PRECISION INSTRUMENTS Co
Priority date: 2020-12-31
Filing date: 2021-01-12
Publication date: 2024-02-23
Anticipated expiration: 2041-01-12
Also published as: CN114682873A

Abstract

The invention discloses a welding tool control system based on a pressure sensor, which is characterized in that: the welding machine comprises a welding machine shell, wherein a controller, a pressure sensor welding tool, a welding machine and a hydraulic machine are arranged in the welding machine shell, and a hydraulic cylinder, a lower fixture shaft rotary driving assembly, a welding gun and a diaphragm fixture are arranged on the pressure sensor welding tool; the controller is connected with the hydraulic press and the lower clamp shaft rotation driving assembly of the welding machine; the capacitance value acquisition end of the controller is connected with a capacitance value sensor, and the capacitance value sensor is used for acquiring the capacitance value of the diaphragm. The control is clear, and the welding precision is high.

Description

Welding tool control system based on pressure sensor

Technical Field

The invention relates to the technical field of pressure sensor processing, in particular to a welding tool control system based on a pressure sensor.

Background

The pressure sensor comprises two membrane seats and a membrane, and the deformation of the membrane is detected during pressure detection. In the process of processing the pressure sensor, procedures such as butt joint, diaphragm cutting and welding are needed. In the prior art, the working procedure is mostly carried out by adopting an open working space, but the working environment changes due to the use of daily accumulation and monthly accumulation, and impurities with dust often affect the precision of the pressure sensor to be processed. And stamping equipment, pressure detection equipment, cutting equipment and the like which are required to be used in the processing process are placed in a split mode, and related circuits are required to be arranged as each equipment is required to operate, so that the problem that the circuits are wound and knotted frequently occurs in a processing field, the machine is stopped and even damaged, and irrecoverable loss is brought to enterprises. In the processing process, the diaphragm cutting and welding processes are difficult to control, the diaphragm is easy to loose and deviate, and even tiny, the detection precision of the pressure sensor can be influenced.

Based on the above-mentioned drawbacks, a technical solution is needed to overcome the above-mentioned technical problems.

Disclosure of Invention

Aiming at the problems, the invention provides a welding tool control system based on a pressure sensor, which realizes the installation of partition functions, designs a high-precision pressure sensor processing tool, and combines a controller to achieve the aim of high-precision production.

In order to achieve the above purpose, the invention adopts the following specific technical scheme:

welding tool control system based on pressure sensor, its characterized in that: the welding machine comprises a welding machine shell, wherein the welding machine shell is divided into a pressure sensor processing chamber, a control chamber, a welding machine chamber and a hydraulic machine chamber through a partition plate, and the control chamber, the welding machine chamber and the hydraulic machine chamber are communicated with the pressure sensor processing chamber;

a controller is arranged in the control cavity; a pressure sensor welding tool is arranged in the pressure sensor processing chamber, and a hydraulic cylinder, a lower fixture shaft rotary driving assembly, a welding gun and a diaphragm fixture are arranged on the pressure sensor welding tool; a welding machine is arranged in the welding machine chamber and is connected with a welding gun on the pressure sensor welding tool; a hydraulic press is arranged in the hydraulic press chamber and is connected with a hydraulic cylinder on the pressure sensor welding tool; the hydraulic press is connected with the diaphragm clamp;

The diaphragm clamping control end of the controller is connected with a diaphragm clamp oil supply valve of the hydraulic press;

the clamping control end of the controller is connected with an oil supply valve of a membrane seat clamping hydraulic cylinder of the hydraulic press;

the tensioning control end of the controller is connected with an oil supply valve of a membrane seat tensioning hydraulic cylinder of the hydraulic press;

the welding control end of the controller is connected with the welding machine;

the controller rotation control end is connected with the lower clamp shaft rotation driving assembly;

the capacitance value acquisition end of the controller is connected with a capacitance value sensor, and the capacitance value sensor is used for acquiring the capacitance value of the diaphragm.

Through the design, a further processing environment for processing the pressure sensor is provided, the chamber is arranged, the hydraulic equipment, the welding machine equipment, the electric control equipment, the pressure sensor processing operation table and the like are equally divided and are arranged in the chamber, and the mutual interference of the processing equipment is effectively avoided. The controller is adopted to intelligently control equipment to be used in the processing process within a set threshold value, so that real-time acquisition and monitoring are realized, the whole processing process is integrally controlled, the processing precision is effectively improved, and the quality of products leaving the factory is ensured. The controller can be a PLC controller or a CNC controller.

According to still further technical scheme, the pressure sensor welding fixture comprises a base seat and a base support plate, at least one support stud is erected between the base seat and the base support plate, a lower fixture shaft is mounted on the base seat, an upper fixture shaft is movably mounted at the bottom of the base support plate, the lower fixture shaft and the upper fixture shaft are coaxially arranged, and the upper fixture shaft is driven by the hydraulic cylinder to be close to or far away from the lower fixture shaft; the lower membrane seat clamping end of the lower clamp shaft is opposite to the upper membrane seat clamping end of the upper clamp shaft, a membrane clamp installation position is arranged on the lower clamp shaft and used for placing a membrane clamp, a welding gun is arranged between the base and the base support plate, and one end, far away from the lower membrane seat clamping end, of the lower clamp shaft is connected with the lower clamp shaft rotation driving assembly.

By adopting the scheme, the lower fixture shaft and the upper fixture shaft are coaxially arranged in the tool, the upper membrane seat and the lower membrane seat are correspondingly fixed on the membrane seat holding ends of the upper membrane seat and the lower membrane seat respectively, and when the movable upper fixture shaft carries the membrane seat to be close to the lower membrane seat, the upper membrane seat and the lower membrane seat can still keep coaxial all the time. And under the drive of the hydraulic cylinder, the clamping force between the upper clamp shaft and the upper and lower membrane seats can be changed, so that the membrane can be firmly clamped between the upper and lower membrane seats. The membrane is not loosened even by cutting and welding. The membrane clamp is adopted, the set tension and clamping force of the membrane placed between the two membrane seats are kept, the membrane clamped between the two membrane seats can be kept flat, and the membrane is still kept flat after the membrane seat is clamped to the membrane and before the edge of the membrane is cut. Even if the cutter is used for cutting, the membrane part inside the membrane seat can be ensured not to move. And the membrane seat is welded under the clamping condition, so that the integrity of the edge of the membrane can be further ensured. In the welding process, the rotary driving assembly drives the rotary driving assembly to rotate, so that the welding machine can weld the whole membrane seat for a circle. And the capacitance value is acquired through the capacitance acquisition equipment, the processing precision and the detection precision of the capacitor are detected, and the quality of a finished product is ensured.

According to still further technical scheme, one end of the upper fixture shaft, which is far away from the clamping end of the upper membrane seat, is sleeved in an upper bearing seat, the upper bearing seat is fixed on an upper fixture shaft fixing position of a guide sliding sleeve, the guide sliding sleeve is connected with an oil cylinder output shaft of the hydraulic cylinder, the upper fixture shaft and the oil cylinder output shaft are coaxially arranged, and the hydraulic cylinder is fixed on the base support plate; the hydraulic cylinder is connected with the hydraulic machine through an upper clamp shaft oil delivery pipe, one end of the upper clamp shaft oil delivery pipe, which is close to the hydraulic machine, is provided with a membrane seat hydraulic cylinder oil supply valve, the membrane seat hydraulic cylinder oil supply valve is provided with a membrane seat clamping pressure transmitter, and the membrane seat clamping pressure transmitter is connected with the controller; two side ends of the upper fixture shaft fixing position of the guide sliding sleeve are symmetrically provided with a guide through hole, two fixture upright posts are respectively sleeved in the guide through holes, the axes of the fixture upright posts are parallel to the axis of the upper fixture shaft, and the two fixture upright posts are fixed between the base and the base support plate; a welding gun clamp is movably arranged on any clamp upright post, and the welding gun clamp is used for connecting the welding gun; an upper membrane seat mounting groove is formed in the end face of the clamping end of the upper membrane seat of the upper clamp shaft, and a magnetic block is fixed on the groove top of the upper membrane seat mounting groove; and a diaphragm cutting tool mounting position is arranged on the outer wall of the clamping end of the upper membrane seat of the upper clamp shaft.

By adopting the scheme, the oil cylinder output shaft of the hydraulic cylinder drives the upper clamp shaft to move up and down, so that the carrying membrane seat is close to the lower membrane seat, and the hydraulic cylinder adopts a 16Mpa12 ton special hydraulic cylinder, so that the membrane can be firmly fixed between the upper membrane seat and the lower membrane seat, and the membrane between the membrane seats is effectively prevented from deforming, loosening and damaging in the membrane cutting and welding processes. And the guide sliding sleeve can limit the upper clamp shaft to move without shaking or shifting, so that the upper membrane seat is ensured to descend to the lower membrane seat, and the upper membrane seat and the lower membrane seat are kept coaxial. Penetrating the anchor clamps stand in the direction through-hole, anchor clamps stand and last anchor clamps axle, lower anchor clamps axle are coaxial, combine the direction sliding sleeve, when the pneumatic cylinder drove the last anchor clamps axle on the direction sliding sleeve and descend, the direction sliding sleeve of cover at the anchor clamps stand can only be along anchor clamps stand extending direction removal, and the direction is fixed, then can not lead to going up the membrane seat and take place the skew in horizontal direction. The upper membrane seat and the lower membrane seat are still coaxially arranged when the upper membrane seat descends to the lower membrane seat. And the upper membrane seat, the lower membrane seat and the membrane are welded together through a welding gun to form the integrated pressure sensor. The welding gun is opposite to the top of the lower membrane seat. The cutter is installed to be can install the cutter on last fixture axle for the cutter is cut the diaphragm that surpasses membrane seat edge, thereby carries out subsequent welding process. The tool mounting locations may be threads, pin holes, etc.

Still further, a lower membrane seat mounting groove is formed in the end face of the clamping end of the lower membrane seat of the lower clamp shaft, the lower clamp shaft is sleeved in a lower bearing seat, the lower bearing seat is fixed on the base seat, and one side, close to the clamping end of the lower membrane seat, of the lower bearing seat, which is far away from the clamping end of the lower membrane seat, is set as the membrane clamp mounting position; one end of the lower clamp shaft, which is far away from the clamping end of the lower membrane seat, passes through the lower bearing seat and the base seat and then is connected with the lower clamp shaft rotary driving assembly; the lower clamp shaft rotary driving assembly comprises a rotary motor, the rotary motor is connected with the controller, a driving gear is connected to an output shaft of the rotary motor, a driven gear is connected to one end portion of the lower clamp shaft, which is far away from the clamping end of the lower membrane seat, and the driving gear is meshed with the driven gear.

By adopting the scheme, in the processing process, the lower membrane seat is placed in the lower membrane seat mounting groove, and the upper membrane seat is kept motionless in the descending process, so that the membrane is clamped between the upper membrane seat and the lower membrane seat, wherein the membrane is placed at the top of the lower membrane seat by adopting the membrane clamp, the edge of the membrane is clamped by the membrane clamp and forms tension, and after the upper membrane seat descends, the membrane is fixedly clamped between the upper membrane seat and the lower membrane seat. After cutting, welding is performed under the driving rotation of the lower clamp shaft rotation driving assembly. The rotating motor drives the lower clamp shaft to rotate. During the welding process, the upper clamp shaft remains stationary.

The further technical scheme is that a clamp bottom plate is also fixed on the base seat, and a lower bearing seat sleeved with the lower clamp shaft is fixed on the base seat through the clamp bottom plate; the bottom of the base support plate is fixedly provided with a clamp support plate, and two ends of a clamp upright post between the base and the base support plate are respectively fixed through the clamp bottom plate and the base support plate;

the base is fixed on the tool base, and at least 4 tool base foot balancing seats are further arranged at the bottom of the tool base.

By adopting the scheme, the clamp upright post can be conveniently fixed between the base seat and the base support plate. The tooling is adjusted by the tooling footing balance seat so as to keep balance.

The membrane clamp comprises a clamp base, wherein the clamp base comprises an upper base and a lower base which are both cylindrical, and the upper base and the lower base are coaxially connected and integrally formed, and the thickness of the wall of the lower base is larger than that of the wall of the upper base; the top of the lower base is provided with a cylindrical oil cylinder body, and the inner wall of the oil cylinder body, the outer wall of the upper base, the top of the lower base and the bottom of the supporting ring are surrounded to form a clamping space; an oil pressure driving structure is arranged in the clamping space and is used for being connected with the oil pressure pump, and is used for clamping the pressure sensor membrane under the oil pressure driving; the upper part of the supporting ring is provided with a locking nut which is in threaded connection with the outer wall of the oil cylinder body and is used for locking the clamping space; the top of the lock nut is provided with a round hole which is coaxial with the cylinder hole of the lower base.

By adopting the scheme, through the design, the base plays a role in supporting the whole clamp and plays a role in limiting the shape of the whole clamp. The oil pressure driving structure is driven by oil pressure, and can generate extrusion force on the pressure sensor diaphragm placed in the clamping space, so that the pressure sensor diaphragm is tight and flat. The hydraulic driving structure is driven by oil pressure, tonnage-level force can be applied to the hydraulic driving structure, so that after the diaphragm is clamped, even if the clamp moves and shakes, the diaphragm cannot loose, and the precision requirement of the high-precision pressure sensor is met. The clamp is fixed by the lock nut, so that the clamping space is fixed, and even under the oil pressure driving, the displacement of the part can not occur, and the deformation of the extrusion is avoided.

Still further, a clamping hydraulic oil hole is formed in the oil cylinder body, the clamping hydraulic oil hole is connected with the hydraulic machine through a membrane clamping fixture oil delivery pipe, the membrane seat clamping hydraulic cylinder oil supply valve is arranged on the membrane clamping fixture oil delivery pipe, a membrane clamping pressure transmitter is arranged on the membrane seat clamping hydraulic cylinder oil supply valve, and the membrane clamping pressure transmitter is connected with the controller; an oil outlet of the clamping hydraulic oil hole is communicated with the clamping space, and an oil inlet of the clamping hydraulic oil hole is connected with a clamping pressure guiding joint; the lower base is internally provided with a tensioning hydraulic oil hole, the tensioning hydraulic oil hole is connected with the hydraulic press through a diaphragm tensioning clamp oil delivery pipe, the diaphragm tensioning clamp oil delivery pipe is provided with a diaphragm seat tensioning hydraulic cylinder oil supply valve, the diaphragm seat tensioning hydraulic cylinder oil supply valve is provided with a diaphragm tensioning pressure transmitter, and the diaphragm tensioning pressure transmitter is connected with the controller; an oil outlet of the tensioning hydraulic oil hole is communicated with the clamping space, and an oil inlet of the tensioning hydraulic oil hole is connected with a tensioning pressure guiding joint; the clamping pressure guiding joint and the tensioning pressure guiding joint are both provided with gaskets;

The oil pressure driving structure comprises a clamping piston ring and a tensioning piston ring, and an oil cylinder inner sleeve is arranged between the clamping piston ring and the tensioning piston ring; the lower part of the clamping piston ring is opposite to an oil outlet of a hydraulic oil hole, and the upper part of the clamping piston ring is opposite to the bottom of the supporting ring; the lower part of the tensioning piston ring is opposite to the oil outlet of the other hydraulic oil hole, and the upper part of the tensioning piston ring is opposite to the bottom of the supporting ring.

By adopting the scheme, the clamp base plays a role in supporting the whole clamp and plays a role in limiting the shape of the whole clamp. The oil pressure driving structure is driven by oil pressure, and can generate extrusion force on the pressure sensor diaphragm placed in the clamping space, so that the pressure sensor diaphragm is tight and flat. The hydraulic driving structure is driven by oil pressure, tonnage-level force can be applied to the hydraulic driving structure, so that after the diaphragm is clamped, even if the clamp moves and shakes, the diaphragm cannot loose, and the precision requirement of the high-precision pressure sensor is met. The clamp is fixed by the lock nut, so that the clamping space is fixed, and even under the oil pressure driving, the displacement of the part can not occur, and the deformation of the extrusion is avoided. In the invention, the base, the oil cylinder body and the lock nut are all made of alloy tool steel Cr12MoV materials. The clamping pressure guiding joint and the tensioning pressure guiding joint are connected with the hydraulic pump through a pipeline to provide power for the hydraulic driving structure. And in the clamping and tensioning procedures, oil pressure is injected through corresponding oil holes after different oil pumps are controlled to be pressurized. The gasket is provided to act as a seal. The cylinder inner sleeve plays a role of separating the clamping piston ring from the tensioning piston ring, and when in driving, the clamping piston ring and the tensioning piston ring are separated and do not interfere with each other. The two hydraulic oil holes respectively provide power for the clamping piston ring and the tensioning piston ring.

Still further described, the clamp piston ring includes a lower clamp drive ring block and an upper clamp abutment ring block, both in abutment arrangement; the upper part of the clamping abutting ring block is provided with a clamping protrusion, the bottom of the supporting ring is provided with a clamping groove, and the clamping groove is positioned right above the clamping protrusion and is structurally adaptive; the tensioning piston ring comprises a tensioning driving ring block at the lower part and a tensioning abutting ring block at the upper part, which are arranged in an abutting manner; the upper part of the tensioning abutting ring block is provided with a tensioning protrusion, the bottom of the supporting ring is provided with a tensioning groove, and the tensioning groove is positioned right above the tensioning protrusion and is structurally adaptive; the height of the tensioning protrusion is larger than that of the clamping protrusion;

the inner wall of the oil cylinder body is a two-stage ladder-shaped inner wall, an oil outlet of a hydraulic oil hole arranged in the oil cylinder body is arranged on a step surface of a ladder, and the clamping driving ring block is arranged above the step surface; the oil cylinder inner sleeve comprises a lower supporting inner sleeve and an upper isolating inner sleeve which are integrally formed, and the bottom surface of the supporting inner sleeve is fixedly arranged at the top of the lower base; the top surface of the supporting inner sleeve is flush with the step surface, and the isolation inner sleeve is arranged on the side, close to the step surface, of the top surface of the supporting inner sleeve; the outer wall of the isolation inner sleeve is abutted with the inner wall of the clamping piston ring, and the outer wall of the clamping piston ring is abutted with the second-stage inner wall of the oil cylinder body; the outer wall of the supporting ring is abutted with the second-stage inner wall of the oil cylinder body; the inner wall of the isolation inner sleeve is abutted with the outer wall of the tensioning piston ring, and the inner part of the tensioning piston ring is abutted with the outer wall of the upper base; the outer wall of the supporting inner sleeve is abutted with the first-stage inner wall of the oil cylinder body, and the inner wall of the supporting inner sleeve is abutted with the outer wall of the upper base; the oil cylinder inner sleeve is provided with an auxiliary oil hole, an oil inlet of the auxiliary oil hole is communicated with the tensioning hydraulic oil hole, and an oil outlet of the auxiliary oil hole is opposite to the bottom of the tensioning piston ring; at least one sealing groove is formed in the inner side wall and the outer side wall of the supporting inner sleeve, the inner side wall and the outer side wall of the clamping piston ring and the inner side wall of the tensioning piston ring respectively along the circumferential direction, and a sealing ring is fixedly arranged in the sealing groove; and a check ring is further arranged on one side, close to the supporting ring, in the sealing groove.

The structure which is fit between the clamping piston ring and the supporting ring forms a clamping structure for the pressure sensor diaphragm, and the structure which is fit between the tensioning piston ring and the supporting ring forms a tensioning structure for the pressure sensor diaphragm; the clamping piston ring is upwards extruded by hydraulic pressure to act on the clamping driving ring block, and the pressure sensor diaphragm is stressed and extruded in the upward process of the clamping driving ring block; finally, the top of the clamping driving ring block is contacted and starts to extrude the pressure sensor membrane until the clamping driving ring block drives the pressure sensor membrane to be propped against the top of the clamping groove, and the clamping groove plays a role of extrusion limiting. After the pressure sensor diaphragm is clamped in place, the tension piston ring is pressed upwards by hydraulic pressure to act on the tension driving ring block, the top of the tension driving ring block is contacted and starts to press the pressure sensor diaphragm, and after the pressure sensor diaphragm is pressed in place, the diaphragm is tensioned around on the plane, so that the diaphragm is kept flat and has tension. Wherein the magnitude of the tension is set according to the magnitude of the accuracy of the pressure sensor.

The height of the tensioning bulge is larger than that of the clamping bulge, so that the membrane is more reasonable in stress, the membrane is more tight, and the quality of the pressure sensor membrane produced in the subsequent cutting process is smoother and more convenient. And the tensioning range is improved, and the precision of different sensors is combined to be set.

The isolating inner sleeve is used for isolating the clamping piston ring from the tensioning piston ring, so that the clamping piston ring and the tensioning piston ring are not mutually influenced when being stressed. The sealing ring is placed in the sealing groove to play a sealing role, and the retainer ring placed above the sealing ring is used for protecting the sealing ring from deformation and damage under the condition of oil pressure driving overpressure. The inner wall of the oil cylinder body is a two-stage ladder-shaped inner wall, so that the hydraulic oil hole can be conveniently arranged.

Still further described, a processing observation door and a transmission observation port are arranged on the display surface of the welding machine shell corresponding to the pressure sensor processing chamber, the processing observation door is positioned above the transmission observation port, and a processing observation window and a handle are arranged on the processing observation door;

a welding machine pushing opening is formed in the display surface of the welding machine shell corresponding to the welding machine cavity, welding machine radiating meshes are formed in the back surface of the welding machine shell corresponding to the welding machine cavity, the welding machine cavity is used for detachably connecting a welding machine, welding machine threading holes are formed in the side wall of the welding machine cavity, and a welding machine in the welding machine cavity is connected with a welding gun in the pressure sensor processing cavity;

The hydraulic press chamber is internally provided with a hydraulic press, and the hydraulic press radiating meshes are formed in the display surface, the back surface and the top of the welding machine shell corresponding to the hydraulic press chamber.

By adopting the scheme, the transmission observation port is used for observing the pressure sensor welding tool transmission equipment, the processing observation door is used for observing the processing process of the pressure sensor, and the processing observation door is opened to realize the working procedures of replacing a processing tool of a tool, placing a processing original device, maintaining equipment and the like. The device is convenient and quick, collision and friction can not occur to other processing equipment, and mutual interference is avoided. The welding machine body is integrally arranged, so that the welding machine pushing port is arranged for being convenient to install and enter the shell, and in the assembling process of the whole processing equipment, the welding machine body is only required to be pushed into the shell through the welding machine pushing port. The assembly is convenient and quick. The hydraulic machine unit has large heat dissipation, and in order to ensure the normal work of the hydraulic machine unit, the heat dissipation is quickened by arranging heat dissipation meshes of the hydraulic machine unit.

The control chamber comprises an operation display installation sub-chamber, a parameter display screen installation sub-chamber and a pc machine installation sub-chamber; the parameter display screen installation subchamber is arranged above the operation display installation subchamber, a rotatable display installation cabinet door is arranged on the display surface of the welding machine shell corresponding to the operation display installation subchamber, and an operation button and at least one touch display screen are arranged on the display installation cabinet door; the parameter display screen is provided with a keyboard drawer in the sub-cavity for placing a keyboard communicated with the control cavity; the parameter display screen is arranged on the display surface of the welding machine shell corresponding to the parameter display screen mounting sub-cavity; the controller is arranged in the PC machine installation sub-cavity, a PC machine cabinet door and a PC machine heat dissipation cabinet door are arranged on the display surface of the welding machine shell corresponding to the PC machine installation sub-cavity, at least one observation window is arranged on the PC machine cabinet door, a PC machine heat dissipation mesh is arranged on the PC machine heat dissipation cabinet door, and a control circuit via hole is arranged on the back surface of the welding machine shell corresponding to the PC machine installation sub-cavity;

The control chamber and the hydraulic machine chamber are positioned at two sides of the pressure sensor processing chamber, a pc machine mounting sub-chamber of the control chamber is positioned above the welder chamber, the hydraulic machine chamber is positioned at one end part of the welder housing, and the pc machine mounting sub-chamber and the welder chamber are positioned at the other end part of the welder housing;

a spare tool cavity is further arranged in the welding machine shell and is positioned below the keyboard drawer;

the top of the welding machine shell is also provided with a standby external heating element mounting frame which is circumferentially surrounded by an external partition plate, and the external partition plate is provided with standby element radiating meshes;

a status display lamp is fixed on the welding machine shell and is communicated with a controller of the control chamber;

the welding machine shell bottom is provided with the installation base.

By adopting the scheme, the display installation sub-cavity, the parameter display screen installation sub-cavity and the pc machine installation sub-cavity are adopted, and the electric control equipment of the whole pressure sensor processing process is installed in a sub-cavity and sub-cavity mode, so that automatic control of the processing tool is realized. Providing a spare space for storing processing tools, wherein a spare tool cavity is further arranged in the welding machine shell and is positioned below the keyboard drawer; the layout is reasonable, and all the devices are integrally placed inside the shell. The integration degree is high, and mutual interference is not easy to occur. The spare external heating element mounting frame can be used for placing other heating equipment, and is convenient for ventilation and heat dissipation colleagues to place the spare external heating element mounting frame and the shell integrally. And displaying the processing state of the pressure sensor through the state display lamp. The mounting base is used to balance the entire device.

The invention has the beneficial effects that: the pressure sensor processing device has the advantages that a further processing environment for pressure sensor processing is provided, the chamber is arranged, the hydraulic equipment, the welding machine equipment, the electric control equipment, the pressure sensor processing operation table and the like are equally divided and arranged in the chamber, and the mutual interference of the processing equipment is effectively avoided. The controller is adopted to intelligently control equipment to be used in the machining process within a set threshold value, so that real-time acquisition and monitoring are realized, the whole machining process is integrally controlled, and the machining precision is effectively improved. The lower fixture shaft and the upper fixture shaft are coaxially arranged in the fixture, the upper membrane seat and the lower membrane seat are correspondingly fixed on the membrane seat holding ends of the upper membrane seat and the lower membrane seat respectively, and when the movable upper fixture shaft carries the membrane seat to be close to the lower membrane seat, the upper membrane seat and the lower membrane seat can still keep coaxial all the time. And under the drive of the hydraulic cylinder, the clamping force between the upper clamp shaft and the upper and lower membrane seats can be changed, so that the membrane can be firmly clamped between the upper and lower membrane seats. The membrane is not loosened even by cutting and welding. The membrane clamp is adopted, the set tension and clamping force of the membrane placed between the two membrane seats are kept, the membrane clamped between the two membrane seats can be kept flat, and the membrane is still kept flat after the membrane seat is clamped to the membrane and before the edge of the membrane is cut. Even if the cutter is used for cutting, the membrane part inside the membrane seat can be ensured not to move. And the membrane seat is welded under the clamping condition, so that the integrity of the edge of the membrane can be further ensured. In the welding process, the rotary driving assembly drives the rotary driving assembly to rotate, so that the welding machine can weld the whole membrane seat for a circle. And the capacitance value is acquired through the capacitance acquisition equipment, the processing precision and the detection precision of the capacitor are detected, and the quality of a finished product is ensured.

Drawings

FIG. 1 is a schematic perspective view of a welder housing;

FIG. 2 is a schematic perspective view of a welder housing;

FIG. 3 is a front view of a welder housing;

FIG. 4 is a top view of the welder housing;

FIG. 5 is a schematic cross-sectional view at A-A of FIG. 4;

fig. 6 is a rear view of the welder housing.

FIG. 7 is a schematic diagram of a perspective structure of a pressure sensor welding tool;

FIG. 8 is a schematic diagram of a second perspective structure of the pressure sensor welding tool;

FIG. 9 is a side view of a pressure sensor welding tool;

FIG. 10 is a schematic cross-sectional view at B-B in FIG. 9;

FIG. 11 is an enlarged schematic view of A in FIG. 10;

FIG. 12 is a schematic view of the attachment of the upper clamp shaft;

FIG. 13 is a schematic view of a clamp shaft rotational drive assembly;

FIG. 14 is a perspective view of the membrane clip;

FIG. 15 is a lower view of the membrane fixture;

FIG. 16 is a cross-sectional view taken at C-C of FIG. 15;

FIG. 17 is an enlarged view of part of E in FIG. 16;

FIG. 18 is a cross-sectional view taken at D-D of FIG. 15;

fig. 19 is a control block diagram of the controller.

Detailed Description

The following describes the embodiments and working principles of the present invention in further detail with reference to the drawings.

As can be seen from fig. 1, 5, 7 and 19, a welding tool control system based on a pressure sensor comprises a welding machine shell 1, wherein the welding machine shell 1 is divided into a pressure sensor processing chamber 2, a control chamber 3, a welding machine chamber 4 and a hydraulic machine chamber 5 by a partition plate, and the control chamber 3, the welding machine chamber 4 and the hydraulic machine chamber 5 are communicated with the pressure sensor processing chamber 2;

A controller K is arranged in the control chamber 3; a pressure sensor welding tool H is arranged in the pressure sensor processing chamber 2, and a hydraulic cylinder H7, a lower fixture shaft rotation driving assembly H10, a welding gun and a diaphragm fixture J are arranged on the pressure sensor welding tool H; a welding machine is arranged in the welding machine chamber 4 and is connected with a welding gun on the pressure sensor welding tool H; a hydraulic press is arranged in the hydraulic press chamber 5 and is connected with a hydraulic cylinder H7 on the pressure sensor welding tool H; the hydraulic press is connected with the diaphragm clamp J;

the diaphragm clamping control end of the controller K is connected with a diaphragm clamp oil supply valve of the hydraulic machine;

the clamping control end of the controller K is connected with an oil supply valve of a membrane seat clamping hydraulic cylinder of the hydraulic press;

the tensioning control end of the controller K is connected with an oil supply valve of a membrane seat tensioning hydraulic cylinder of the hydraulic machine;

the welding control end of the controller K is connected with the welding machine;

the rotation control end of the controller K is connected with the lower clamp shaft rotation driving assembly H10;

the capacitance value acquisition end of the controller K is connected with a capacitance value sensor, and the capacitance value sensor is used for acquiring the capacitance value of the diaphragm.

In the present embodiment, the welder housing 1 is also provided with an emergency stop button, a gun manual button, a rotation control forward rotation button, a rotation control reverse rotation button, and the like.

As can be seen from fig. 7 to 9, the pressure sensor welding fixture comprises a base seat H1a and a base support plate H1b, at least one support stud H2 is erected between the base seat H1a and the base support plate H1b, a lower fixture shaft H3 is installed on the base seat H1a, an upper fixture shaft H4 is movably installed at the bottom of the base support plate H1b, the lower fixture shaft H3 and the upper fixture shaft H4 are coaxially arranged, a lower film seat clamping end of the lower fixture shaft H3 is opposite to an upper film seat clamping end of the upper fixture shaft H4, a film clamp installation position is arranged on the lower fixture shaft H3, a welding gun is arranged between the base seat H1a and the base support plate H1b, and the welding gun is communicated with the chamber 4 of the welder.

In this embodiment, the base seat H1a is fixed on the tooling seat H12, and 4 tooling foot balancing seats H13 are further provided at the bottom of the tooling seat H12. See in particular figures 7-9.

In this embodiment, as can be seen from fig. 10, a clamp bottom plate H14a is further fixed on the base seat H1a, and a lower bearing seat H9 sleeved with the lower clamp shaft H3 is fixed on the base seat H1a through the clamp bottom plate H14 a;

The bottom of the base support plate H1b is fixed with a clamp support plate H14b, and two ends of a clamp column H8 between the base H1a and the base support plate H1b are respectively fixed through the clamp bottom plate H14a and the base support plate H1 b.

As can be seen from fig. 11, an upper film seat mounting groove H4a is formed on the end face of the upper film seat clamping end of the upper clamping shaft H4, and a magnetic block H4b is fixed on the groove top of the upper film seat mounting groove H4 a. After the upper membrane seat is placed in the upper membrane seat mounting groove H4a, as the upper membrane seat is made of metal, the magnetic block has attractive force effect on the upper membrane seat, and the attractive force is larger than the gravity of the magnetic block. In this embodiment, the inner diameter of the upper membrane seat mounting groove is adapted to the outer diameter of the upper membrane seat, and the size of the inner diameter of the upper membrane seat mounting groove exceeding the outer diameter of the upper membrane seat is within an error range, and even if the placement position is offset each time, the size is within the error range. The depth of the upper membrane seat mounting groove is smaller than or equal to the height of the upper membrane seat.

And a diaphragm cutting tool mounting position is arranged on the outer wall of the clamping end of the upper membrane seat of the upper clamp shaft H4. In the embodiment, a cutter for cutting the membrane is connected through threads, and cutter connecting threads are formed on the outer wall of the clamping end of the membrane seat on the upper clamping shaft H4. And the tool can be rotated circumferentially along the upper clamp axis H4.

As can be seen in fig. 10 and 12, one end of the upper fixture shaft H4, which is far away from the clamping end of the upper membrane seat, is sleeved in an upper bearing seat H5, the upper bearing seat H5 is fixed on an upper fixture shaft fixing position of a guiding sliding sleeve H6, the guiding sliding sleeve H6 is connected with an oil cylinder output shaft H7a of a hydraulic cylinder H7, the upper fixture shaft H4 is coaxially arranged with the oil cylinder output shaft H7a, and the hydraulic cylinder H7 is fixed on a base support plate H1 b.

In this embodiment, referring to fig. 19, the hydraulic cylinder H7 is connected to the hydraulic machine through an upper fixture shaft oil delivery pipe, and the end of the upper fixture shaft oil delivery pipe, which is close to the hydraulic machine, is provided with the membrane seat hydraulic cylinder oil supply valve, which is provided with a membrane seat clamping pressure transmitter, and the membrane seat clamping pressure transmitter is connected to the controller;

as can be seen by combining fig. 10 and 12, two side end portions of the upper fixture shaft fixing position of the guiding sliding sleeve H6 are symmetrically provided with a guiding through hole, two fixture upright posts H8 are respectively sleeved in the guiding through holes, and the axes of the fixture upright posts H8 are parallel to the axes of the upper fixture shaft H4, namely, the upper fixture shaft H4 and the lower fixture shaft H3 are coaxial, and the axes of the upper fixture shaft H4 and the lower fixture shaft H3 are parallel to the fixture upright posts 8.

As can be seen in conjunction with fig. 10, the two clamp posts H8 are fixed between the base H1a and the base support plate H1b via the clamp base plate H14a and the clamp support plate H14 b.

One of the fixture columns H8 is fixed with a welding gun fixture H11, and the welding gun fixture H11 is used for connecting the welding gun, in this embodiment, the welding gun is not shown in the figure.

As can be seen from fig. 10, a lower membrane seat mounting groove H3a is formed in the end surface of the lower membrane seat clamping end of the lower clamp shaft H3, the lower clamp shaft H3 is sleeved in a lower bearing seat H9, the lower bearing seat H9 is fixed on the base seat H1a, and one side, close to the lower clamp shaft H3, far from the lower membrane seat clamping end is set as the membrane clamp mounting position; one end of the lower fixture shaft H3, which is far away from the clamping end of the lower membrane seat, passes through the lower bearing seat H9 and the base seat H1a and then is connected with the lower fixture shaft rotary driving assembly H10.

As can be seen from fig. 13 and 11, the lower fixture shaft rotation driving assembly H10 includes a rotating motor H10a, and as can be seen from fig. 19, the rotating motor H10a is connected to the controller K, and a driving gear H10b is connected to an output shaft of the rotating motor H10a, in this embodiment, the rotating motor H10a is a dc reduction motor.

And one end part of the lower clamp shaft H3, which is far away from the clamping end of the lower membrane seat, is connected with a driven gear H10c, and the driving gear H10b is meshed with the driven gear H10 c.

In this embodiment, as can be seen in conjunction with fig. 3, the control chamber 3 includes an operation display installation sub-chamber 3a, a parameter display screen installation sub-chamber 3b, and a pc machine installation sub-chamber 3c;

in this embodiment, as can be seen in connection with fig. 1 and 3, a spare tool space 7 is also provided inside the welder housing 1, which spare tool space 7 is located below the keyboard drawer.

In this embodiment, as can be seen from fig. 1 to 4, the control chamber 3 and the hydraulic press chamber 5 are located at two sides of the pressure sensor processing chamber 2, the pc machine mounting sub-chamber 3c of the control chamber 3 is located above the welder chamber 4, the hydraulic press chamber 5 is located at one end of the welder housing 1, and the pc machine mounting sub-chamber 3c and the welder chamber 4 are located at the other end of the welder housing 1.

In this embodiment, as can be seen in connection with fig. 3, the pressure sensor processing chamber 2 is internally used for fixing a pressure sensor welding tool, a processing observation door 2a and a transmission observation port 2b are disposed on the display surface of the welding machine shell 1 corresponding to the pressure sensor processing chamber 2, the processing observation door 2a is located above the transmission observation port 2b, and a processing observation window and a handle are disposed on the processing observation door 2 a.

In this embodiment, the parameter display screen installation subchamber 3b is disposed above the operation display installation subchamber 3a, a rotatable display installation cabinet door is installed on the display surface of the welding machine shell 1 corresponding to the operation display installation subchamber 3a, and an operation button and 3 touch display screens are arranged on the display installation cabinet door; the parameter display screen mounting subchamber 3b is provided with a keyboard drawer which is used for placing a keyboard communicated with the control chamber 3;

in this embodiment, a parameter display screen is disposed on the display surface of the welding machine housing 1 corresponding to the parameter display screen mounting sub-cavity 3 b;

in this embodiment, PC machine installation divides chamber 3c to correspond be provided with PC machine cabinet door and PC machine heat dissipation cabinet door on the show face of welding machine casing 1, 2 observation windows have been seted up on the PC machine cabinet door, PC machine heat dissipation mesh has been seted up to PC machine heat dissipation cabinet door, PC machine installation divides chamber 3c to correspond the control circuit via hole has been seted up at the back of welding machine casing 1.

In this embodiment, as can be seen in fig. 1 and 4, a standby external heating element mounting frame 8 is further disposed on the top of the welding machine housing 1, the standby external heating element mounting frame 8 is circumferentially surrounded by an external partition board, and a standby element heat dissipation mesh is formed on the external partition board.

In this embodiment, as can be seen in connection with fig. 1 and 3, a status display lamp 9 is fixed to the welder housing 1, which status display lamp 9 communicates with the control chamber 3.

In this embodiment, as can be seen from fig. 1, a welder pushing opening is formed on the display surface of the welder housing 1 corresponding to the welder chamber 4, as can be seen from fig. 6, a welder radiating mesh is formed on the back surface of the welder housing 1 corresponding to the welder chamber 4, and the welder chamber 4 is used for detachably connecting with a welder. And a welding machine threading hole is formed in the side wall of the welding machine chamber 4, and a welding machine in the welding machine chamber 4 is connected with a welding gun in the pressure sensor processing chamber 2.

In this embodiment, as can be seen in fig. 1, 6 and 4, hydraulic press heat dissipation meshes are formed on the display surface, the back surface and the top of the welding machine housing 1 corresponding to the hydraulic press chamber 5.

In this embodiment, as can be seen in connection with fig. 2, the bottom of the welder housing 1 is provided with a mounting base 10.

As shown in fig. 14 and 15, the base J1 includes an upper base J1a and a lower base J1b, and the upper base J1a and the lower base J1b are both cylindrical, and are coaxially connected and integrally formed.

In this embodiment, as can be seen in conjunction with fig. 3, the thickness of the wall of the lower base J1b is greater than that of the wall of the upper base J1 a; the top of the lower base J1b is provided with a cylindrical oil cylinder body J4, and the inner wall of the oil cylinder body J4 surrounds the outer wall of the upper base J1a, the top of the lower base J1b and the bottom of the supporting ring J6 to form a clamping space; an oil pressure driving structure is arranged in the clamping space.

In the present embodiment, the oil pressure driving structure is used for connecting with an oil pressure pump, and is used for clamping a pressure sensor diaphragm J17 under the oil pressure driving; the upper part of the supporting ring J6 is provided with a locking nut J5, and the locking nut J5 is in threaded connection with the outer wall of the oil cylinder body J4 and is used for locking the clamping space; the top of the locking nut J5 is provided with a round hole which is coaxial with the cylinder hole of the lower base J1 b. The base serves to support the entire clamp and to define the shape of the entire clamp. The oil pressure driving structure is driven by oil pressure, and can generate extrusion force on the pressure sensor diaphragm placed in the clamping space, so that the pressure sensor diaphragm is tight and smooth. The base J1, the oil cylinder body J4, the supporting ring J6 and the locking nut J5 are made of alloy tool steel Cr12MoV materials.

Referring to fig. 16 and 17, a clamping hydraulic oil hole J18a is formed in the oil cylinder body J4, an oil outlet of the clamping hydraulic oil hole J18a is communicated with the clamping space, and an oil inlet of the clamping hydraulic oil hole J18a is connected with a clamping pressure leading joint J3; a tensioning hydraulic oil hole J18b is formed in the lower base J1b, an oil outlet of the tensioning hydraulic oil hole J18b is communicated with the clamping space, and a tensioning leading joint J2 is connected to an oil inlet of the tensioning hydraulic oil hole J18 b; both the clamping and tensioning lead joint J3, J2 are provided with washers J8. The hydraulic oil hole provides power for the oil pressure driving structure. The clamping pressure guiding joint J3 and the tensioning pressure guiding joint J2 are made of 45 # steel, and the gasket J8 is made of a composite material.

In this embodiment, referring to fig. 19, the clamping hydraulic oil hole J18a is connected to the hydraulic machine through a diaphragm clamping fixture oil pipe, the diaphragm clamping fixture oil pipe is provided with the diaphragm seat clamping hydraulic cylinder oil supply valve, the diaphragm seat clamping hydraulic cylinder oil supply valve is provided with a diaphragm clamping pressure transmitter, and the diaphragm clamping pressure transmitter is connected to the controller;

in this embodiment, referring to fig. 19, a tensioning hydraulic oil hole J18b is connected to the hydraulic machine through a diaphragm tensioning clamp oil delivery pipe, the diaphragm tensioning clamp oil delivery pipe is provided with a diaphragm seat tensioning hydraulic cylinder oil supply valve, the diaphragm seat tensioning hydraulic cylinder oil supply valve is provided with a diaphragm tensioning pressure transmitter, and the diaphragm tensioning pressure transmitter is connected to the controller;

As shown in fig. 17, the oil pressure driving structure comprises a clamping piston ring J9 and a tensioning piston ring J10, and an oil cylinder inner sleeve J7 is arranged between the clamping piston ring J9 and the tensioning piston ring J10; the lower part of the clamping piston ring J9 is opposite to an oil outlet of the hydraulic oil hole 18, and the upper part of the clamping piston ring J9 is opposite to the bottom of the supporting ring J6; the lower part of the tensioning piston ring J10 is opposite to the oil outlet of the other hydraulic oil hole J18, and the upper part of the tensioning piston ring J10 is opposite to the bottom of the supporting ring J6. The clamping piston ring J9 comprises a lower clamping driving ring block J9a and an upper clamping abutting ring block 9b which are in abutting connection; the upper part of the clamping abutting ring block J9b is provided with a clamping protrusion, the bottom of the supporting ring J6 is provided with a clamping groove, and the clamping groove is positioned right above the clamping protrusion and is structurally adaptive; the tensioning piston ring J10 comprises a tensioning driving ring block J10a at the lower part and a tensioning abutting ring block J10b at the upper part, which are in abutting arrangement; the upper portion of tensioning butt joint circle piece J10b is provided with the tensioning arch, supporting ring J6 bottom is provided with the tensioning recess, and this tensioning recess is located the tensioning arch and the structural adaptation. The clamping piston ring J9 and the tensioning piston ring J10 are made of alloy tool steel Cr12MoV materials.

In this embodiment, as can be seen in connection with fig. 17, the height of the tensioning projection is greater than the clamping projection height.

The oil pressure driving structure provides power in the extrusion process of the pressure sensor diaphragm J17, the pressure sensor diaphragm J17 is firstly subjected to clamping force in the upward extrusion process, the upper part of the clamping piston ring J9 is firstly clamped with the bottom of the supporting ring J6 to clamp the pressure sensor diaphragm J17, the tensioning piston ring J10 and the bottom of the supporting ring J6 are tensioned to clamp the pressure sensor diaphragm J17, and finally cutting is carried out.

As shown in fig. 15, 17 and 18, the inner wall of the oil cylinder body J4 is a two-stage stepped inner wall, the oil outlet of the hydraulic oil hole arranged in the oil cylinder body J4 is arranged on the stepped surface, and the clamping driving ring block J9a is arranged above the stepped surface; the oil cylinder inner sleeve J7 comprises a lower supporting inner sleeve and an upper isolating inner sleeve which are integrally formed, and the bottom surface of the supporting inner sleeve is fixedly arranged at the top of the lower base J1 b; the top surface of the supporting inner sleeve is flush with the step surface, and the isolation inner sleeve is arranged on the side, close to the step surface, of the top surface of the supporting inner sleeve; the outer wall of the isolation inner sleeve is abutted with the inner wall of the clamping piston ring J9, and the outer wall of the clamping piston ring J9 is abutted with the second-stage inner wall of the oil cylinder body J4; the outer wall of the supporting ring J6 is abutted against the second-stage inner wall of the oil cylinder body J4; the inner wall of the isolation inner sleeve is abutted with the outer wall of the tensioning piston ring J10, and the inner part of the tensioning piston ring J10 is abutted with the outer wall of the upper base J1 a; the outer wall of the supporting inner sleeve is abutted with the first-stage inner wall of the oil cylinder body J4, and the inner wall of the supporting inner sleeve is abutted with the outer wall of the upper base J1 a; the oil cylinder inner sleeve J7 is provided with an auxiliary oil hole J20, an oil inlet of the auxiliary oil hole J20 is communicated with the tensioning hydraulic oil hole 18b, and an oil outlet of the auxiliary oil hole J20 is opposite to the bottom of the tensioning piston ring J10; at least one sealing groove is formed in the inner side wall and the outer side wall of the supporting inner sleeve, the inner side wall and the outer side wall of the clamping piston ring J9 and the inner side wall and the outer side wall of the tensioning piston ring J10 respectively along the circumferential direction, and a sealing ring J14 is fixedly arranged in the sealing groove; and a check ring J13 is further arranged on one side, close to the supporting ring J6, in the sealing groove.

The sealing ring J14 plays a sealing role on the sealing groove, the sealing ring is made of nitrile rubber, and the retainer ring J13 arranged above the sealing ring is used for protecting the sealing ring J14 from deformation and damage under the condition of oil pressure driving overpressure. The retainer ring is made of nylon 66.

As shown in fig. 16 and 18, the lower base J1b is connected with the cylinder body J4 by a screw, and the lower base J1b is fixed with the cylinder inner sleeve by a screw. The lower base is fixedly connected with the oil cylinder body and the supporting inner sleeve by using screws, so that the stability of the bottom of the clamp can be enhanced, and the force applied to the pressure sensor membrane is more uniform.

It should be noted that the above description is not intended to limit the invention, but rather the invention is not limited to the above examples, and that variations, modifications, additions or substitutions within the spirit and scope of the invention will be within the scope of the invention.

Claims

1. Welding tool control system based on pressure sensor, its characterized in that: the welding machine comprises a welding machine shell (1), wherein the welding machine shell (1) is divided into a pressure sensor processing chamber (2), a control chamber (3), a welding machine chamber (4) and a hydraulic machine chamber (5) through a partition plate, and the control chamber (3), the welding machine chamber (4) and the hydraulic machine chamber (5) are communicated with the pressure sensor processing chamber (2);

A controller (K) is arranged in the control chamber (3); a pressure sensor welding tool (H) is arranged in the pressure sensor processing chamber (2), and a hydraulic cylinder (H7), a lower clamp shaft rotary driving assembly (H10), a welding gun and a diaphragm clamp (J) are arranged on the pressure sensor welding tool (H); a welding machine is arranged in the welding machine chamber (4) and is connected with a welding gun on the pressure sensor welding tool (H); a hydraulic press is arranged in the hydraulic press chamber (5), and is connected with a hydraulic cylinder (H7) on the pressure sensor welding tool (H); the hydraulic press is connected with the diaphragm clamp (J);

the diaphragm clamping control end of the controller (K) is connected with a diaphragm clamp oil supply valve of the hydraulic machine;

the clamping control end of the controller (K) is connected with an oil supply valve of a membrane seat clamping hydraulic cylinder of the hydraulic press;

the tensioning control end of the controller (K) is connected with an oil supply valve of a membrane seat tensioning hydraulic cylinder of the hydraulic machine;

the welding control end of the controller (K) is connected with the welding machine;

the rotation control end of the controller (K) is connected with the lower clamp shaft rotation driving assembly (H10);

the capacitance value acquisition end of the controller (K) is connected with a capacitance value sensor, and the capacitance value sensor is used for acquiring the capacitance value of the diaphragm.

2. The pressure sensor-based welding tooling control system of claim 1, wherein:

the pressure sensor welding tool (H) comprises a base (H1 a) and a base supporting plate (H1 b), at least one supporting stud (H2) is erected between the base (H1 a) and the base supporting plate (H1 b), a lower fixture shaft (H3) is installed on the base (H1 a), an upper fixture shaft (H4) is movably installed at the bottom of the base supporting plate (H1 b), the lower fixture shaft (H3) and the upper fixture shaft (H4) are coaxially arranged, and the upper fixture shaft (H4) is driven by a hydraulic cylinder (H7) to be close to or far away from the lower fixture shaft (H3); the membrane holder clamping end of the lower clamp shaft (H3) is opposite to the membrane holder clamping end of the upper clamp shaft (H4), a membrane holder mounting position is arranged on the lower clamp shaft (H3), the membrane holder mounting position is used for placing a membrane holder (J), a welding gun is arranged between the base seat (H1 a) and the base support plate (H1 b), and one end, far away from the lower membrane holder clamping end, of the lower clamp shaft (H3) is connected with a lower clamp shaft rotation driving assembly (H10).

3. The pressure sensor-based welding tooling control system of claim 2, wherein: one end of the upper clamp shaft (H4) far away from the clamping end of the upper membrane seat is sleeved in an upper bearing seat (H5), the upper bearing seat (H5) is fixed on an upper clamp shaft fixing position of a guide sliding sleeve (H6), the guide sliding sleeve (H6) is connected with an oil cylinder output shaft (H7 a) of a hydraulic cylinder (H7), the upper clamp shaft (H4) and the oil cylinder output shaft (H7 a) are coaxially arranged, and the hydraulic cylinder (H7) is fixed on a base support plate (H1 b); the hydraulic cylinder (H7) is connected with the hydraulic machine through an upper clamp shaft oil delivery pipe, one end of the upper clamp shaft oil delivery pipe, which is close to the hydraulic machine, is provided with a membrane seat hydraulic cylinder oil supply valve, the membrane seat hydraulic cylinder oil supply valve is provided with a membrane seat clamping pressure transmitter, and the membrane seat clamping pressure transmitter is connected with the controller; two side ends of the upper clamp shaft fixing position of the guide sliding sleeve (H6) are symmetrically provided with guide through holes, two clamp upright posts (H8) are respectively sleeved in the guide through holes, the axis of each clamp upright post (H8) is parallel to the axis of the upper clamp shaft (H4), and the two clamp upright posts (H8) are fixed between the base seat (H1 a) and the base support plate (H1 b); a welding gun clamp (H11) is movably arranged on any clamp upright post (H8), and the welding gun clamp (H11) is used for connecting the welding gun; an upper membrane seat mounting groove (H4 a) is formed in the end face of the clamping end of the upper membrane seat of the upper clamp shaft (H4), and a magnetic block (H4 b) is fixed at the groove top of the upper membrane seat mounting groove (H4 a); and a diaphragm cutting tool mounting position is arranged on the outer wall of the clamping end of the upper membrane seat of the upper clamp shaft (H4).

4. The pressure sensor-based welding tooling control system of claim 2, wherein: a lower membrane seat mounting groove (H3 a) is formed in the end face of the clamping end of the lower membrane seat of the lower clamp shaft (H3), the lower clamp shaft (H3) is sleeved in a lower bearing seat (H9), the lower bearing seat (H9) is fixed on the base seat (H1 a), and one side, close to the lower clamp shaft (H3), far away from the clamping end of the lower membrane seat is arranged as the membrane clamp mounting position; one end, far away from the clamping end of the lower membrane seat, of the lower clamp shaft (H3) penetrates through the lower bearing seat (H9) and the base seat (H1 a) and then is connected with the lower clamp shaft rotary driving assembly (H10); the lower clamp shaft rotary driving assembly (H10) comprises a rotary motor (H10 a), the rotary motor (H10 a) is connected with the controller (K), a driving gear (H10 b) is connected to an output shaft of the rotary motor (H10 a), a driven gear (H10 c) is connected to one end portion of the lower clamp shaft (H3) far away from the clamping end of the lower membrane seat, and the driving gear (H10 b) is meshed with the driven gear (H10 c).

5. The pressure sensor-based welding tooling control system of claim 2, wherein: a clamp bottom plate (H14 a) is also fixed on the base seat (H1 a), and a lower bearing seat (H9) sleeved with the lower clamp shaft (H3) is fixed on the base seat (H1 a) through the clamp bottom plate (H14 a); the bottom of the base support plate (H1 b) is fixedly provided with a clamp support plate (H14 b), and two ends of a clamp upright post (H8) between the base (H1 a) and the base support plate (H1 b) are respectively fixed through the clamp bottom plate (H14 a) and the base support plate (H1 b);

The base (H1 a) is fixed on the tool base (H12), and at least 4 tool base foot balancing seats (H13) are further arranged at the bottom of the tool base (H12).

6. The pressure sensor-based welding tooling control system of claim 2, wherein: the membrane clamp (J) comprises a clamp base (J1), wherein the clamp base (J1) comprises an upper base (J1 a) and a lower base (J1 b), the upper base (J1 a) and the lower base (J1 b) are both cylindrical, are coaxially connected and are integrally formed, and the thickness of the wall of the lower base (J1 b) is larger than that of the wall of the upper base (J1 a); the top of the lower base (J1 b) is provided with a cylindrical oil cylinder body (J4), and the inner wall of the oil cylinder body (J4) surrounds the outer wall of the upper base (J1 a), the top of the lower base (J1 b) and the bottom of the supporting ring (J6) to form a clamping space; an oil pressure driving structure is arranged in the clamping space and is used for being connected with an oil pressure pump, and is used for clamping a pressure sensor diaphragm (J17) under oil pressure driving; the upper part of the supporting ring (J6) is provided with a locking nut (J5), and the locking nut (J5) is in threaded connection with the outer wall of the oil cylinder body (J4) and is used for locking the clamping space; the top of the lock nut (J5) is provided with a round hole which is coaxial with the cylinder hole of the lower base (J1 b).

7. The pressure sensor based welding tooling control system of claim 6, wherein:

a clamping hydraulic oil hole (J18 a) is formed in the oil cylinder body (J4), the clamping hydraulic oil hole (J18 a) is connected with the hydraulic machine through a membrane clamping fixture oil delivery pipe, the membrane clamping fixture oil delivery pipe is provided with a membrane seat clamping hydraulic cylinder oil supply valve, the membrane seat clamping hydraulic cylinder oil supply valve is provided with a membrane clamping pressure transmitter, and the membrane clamping pressure transmitter is connected with the controller; an oil outlet of the clamping hydraulic oil hole (J18 a) is communicated with the clamping space, and an oil inlet of the clamping hydraulic oil hole (J18 a) is connected with a clamping pressure guiding joint (J3); a tensioning hydraulic oil hole (J18 b) is formed in the lower base (J1 b), the tensioning hydraulic oil hole (J18 b) is connected with the hydraulic machine through a diaphragm tensioning clamp oil delivery pipe, the diaphragm tensioning clamp oil delivery pipe is provided with a diaphragm seat tensioning hydraulic cylinder oil supply valve, the diaphragm seat tensioning hydraulic cylinder oil supply valve is provided with a diaphragm tensioning pressure transmitter, and the diaphragm tensioning pressure transmitter is connected with the controller; an oil outlet of the tensioning hydraulic oil hole (J18 b) is communicated with the clamping space, and an oil inlet of the tensioning hydraulic oil hole (J18 b) is connected with a tensioning pressure guiding joint (J2); the clamping leading joint (J3) and the tensioning leading joint (J2) are both provided with washers (J8);

The oil pressure driving structure comprises a clamping piston ring (J9) and a tensioning piston ring (J10), and an oil cylinder inner sleeve (J7) is arranged between the clamping piston ring and the tensioning piston ring; the lower part of the clamping piston ring (J9) is opposite to an oil outlet of a hydraulic oil hole (J18), and the upper part of the clamping piston ring (J9) is opposite to the bottom of the supporting ring (J6); the lower part of the tensioning piston ring (J10) is opposite to the oil outlet of the other hydraulic oil hole (J18), and the upper part of the tensioning piston ring (J10) is opposite to the bottom of the supporting ring (J6).

8. The pressure sensor based welding tooling control system of claim 7, wherein:

the clamping piston ring (J9) comprises a lower clamping driving ring block (J9 a) and an upper clamping abutting ring block (J9 b), which are in abutting arrangement; the upper part of the clamping abutting ring block (J9 b) is provided with a clamping protrusion, the bottom of the supporting ring (J6) is provided with a clamping groove, and the clamping groove is positioned right above the clamping protrusion and is structurally adaptive; the tensioning piston ring (J10) comprises a tensioning driving ring block (J10 a) at the lower part and a tensioning abutting ring block (J10 b) at the upper part, which are in abutting arrangement; the upper part of the tensioning abutting ring block (J10 b) is provided with a tensioning protrusion, the bottom of the supporting ring (J6) is provided with a tensioning groove, and the tensioning groove is positioned right above the tensioning protrusion and is structurally adaptive; the height of the tensioning protrusion is larger than that of the clamping protrusion;

The inner wall of the oil cylinder body (J4) is a two-stage ladder-shaped inner wall, an oil outlet of a hydraulic oil hole arranged in the oil cylinder body (J4) is arranged on a step surface of a ladder, and the clamping driving ring block (J9 a) is arranged above the step surface; the oil cylinder inner sleeve (J7) comprises a lower supporting inner sleeve and an upper isolating inner sleeve which are integrally formed, and the bottom surface of the supporting inner sleeve is fixedly arranged at the top of the lower base (J1 b); the top surface of the supporting inner sleeve is flush with the step surface, and the isolation inner sleeve is arranged on the side, close to the step surface, of the top surface of the supporting inner sleeve; the outer wall of the isolation inner sleeve is abutted with the inner wall of the clamping piston ring (J9), and the outer wall of the clamping piston ring (J9) is abutted with the second-order inner wall of the oil cylinder body (J4); the outer wall of the supporting ring (J6) is abutted with the second-stage inner wall of the oil cylinder body (J4); the inner wall of the isolation inner sleeve is abutted with the outer wall of the tensioning piston ring (J10), and the inner part of the tensioning piston ring (J10) is abutted with the outer wall of the upper base (J1 a); the outer wall of the supporting inner sleeve is abutted with the first-stage inner wall of the oil cylinder body (J4), and the inner wall of the supporting inner sleeve is abutted with the outer wall of the upper base (J1 a); the oil cylinder inner sleeve (J7) is provided with an auxiliary oil hole (J20), an oil inlet of the auxiliary oil hole (J20) is communicated with the tensioning hydraulic oil hole (J18 b), and an oil outlet of the auxiliary oil hole (J20) is opposite to the bottom of the tensioning piston ring (J10); at least one sealing groove is formed in the inner side wall and the outer side wall of the supporting inner sleeve, the inner side wall and the outer side wall of the clamping piston ring (J9) and the inner side wall of the tensioning piston ring (J10) along the circumferential direction respectively, and a sealing ring (J14) is fixedly arranged in the sealing groove; and a check ring (J13) is further arranged on one side, close to the supporting ring (J6), in the sealing groove.

9. The pressure sensor-based welding tooling control system of claim 1, wherein: a processing observation door (2 a) and a transmission observation port (2 b) are arranged on the display surface of the welding machine shell (1) corresponding to the pressure sensor processing chamber (2), the processing observation door (2 a) is positioned above the transmission observation port (2 b), and a processing observation window and a handle are arranged on the processing observation door (2 a);

a welder pushing opening is formed in the display surface of the welder shell (1) corresponding to the welder chamber (4), welder radiating meshes are formed in the back surface of the welder shell (1) corresponding to the welder chamber (4), the welder chamber (4) is used for being detachably connected with a welder, and welder threading holes are formed in the side wall of the welder chamber (4) and are used for connecting a welder in the welder chamber (4) with a welding gun in the pressure sensor processing chamber (2);

hydraulic press radiating meshes are formed in the display surface, the back surface and the top of the welding machine shell (1) corresponding to the hydraulic press cavity (5), and a hydraulic press is arranged in the hydraulic press cavity (5).

10. The pressure sensor-based welding tooling control system of claim 1, wherein: the control chamber (3) comprises an operation display installation subchamber (3 a), a parameter display screen installation subchamber (3 b) and a pc machine installation subchamber (3 c); the parameter display screen installation subchamber (3 b) is arranged above the operation display installation subchamber (3 a), a rotatable display installation cabinet door is installed on the display surface of the welding machine shell (1) corresponding to the operation display installation subchamber (3 a), and an operation button and at least one touch display screen are arranged on the display installation cabinet door; the parameter display screen mounting subchamber (3 b) is provided with a keyboard drawer which is used for placing a keyboard communicated with the control chamber (3); a parameter display screen is arranged on the display surface of the welding machine shell (1) corresponding to the parameter display screen mounting sub-cavity (3 b); the controller (K) is arranged in the PC machine installation sub-cavity (3 c), a PC machine cabinet door and a PC machine heat dissipation cabinet door are arranged on the display surface of the welding machine shell (1) corresponding to the PC machine installation sub-cavity (3 c), at least one observation window is arranged on the PC machine cabinet door, PC machine heat dissipation meshes are arranged on the PC machine heat dissipation cabinet door, and control circuit through holes are arranged on the back surface of the welding machine shell (1) corresponding to the PC machine installation sub-cavity (3 c);

The control chamber (3) and the hydraulic press chamber (5) are positioned on two sides of the pressure sensor processing chamber (2), a pc machine installation sub-chamber (3 c) of the control chamber (3) is positioned above the welder chamber (4), the hydraulic press chamber (5) is positioned at one end part of the welder housing (1), and the pc machine installation sub-chamber (3 c) and the welder chamber (4) are positioned at the other end part of the welder housing (1);

a spare tool cavity (7) is further arranged in the welding machine shell (1), and the spare tool cavity (7) is positioned below the keyboard drawer;

the top of the welding machine shell (1) is also provided with a standby external heating element mounting frame (8), the standby external heating element mounting frame (8) is circumferentially surrounded by an external partition plate, and the external partition plate is provided with standby element radiating meshes;

a status display lamp (9) is fixed on the welding machine shell (1), and the status display lamp (9) is communicated with a controller of the control chamber (3);

the bottom of the welding machine shell (1) is provided with a mounting base (10).