Integral machine for processing pressure sensors

Abstract

The present invention discloses an integral machine for processing pressure sensors, including a welding machine housing (1). The welding machine housing (1) is divided into a pressure sensor processing chamber (2), a control chamber (3), a welding machine chamber (4), and a hydraulic press chamber (5) by a partition. The control chamber (3), the welding machine chamber (4), and the hydraulic press chamber (5) communicate with the pressure sensor processing chamber (2). A pressure sensor welding tooling (H) is installed in the pressure sensor processing chamber (2). By evenly installing hydraulic equipment, welding machine equipment, electric control equipment, pressure sensor processing operation tables, etc. in separate chambers, mutual interference between processing equipment is effectively avoided. A new pressure sensor welding tooling is designed, reducing the processing reject rate of pressure sensors, improving the detection accuracy of pressure sensors, and ensuring the quality of the sensors' factory products.

Description

Technical Field

[0001] The present invention relates to the technical field of pressure sensor processing, and specifically, to an integral machine for processing pressure sensors. Background Art

[0002] A pressure sensor includes two diaphragm seats and a diaphragm, and during pressure detection, the deformation of the diaphragm is detected. During the processing of the pressure sensor, processes such as docking, diaphragm cutting, and welding are required. In the prior art, most of the above processes are carried out in an open processing space. However, due to long-term use, the processing environment changes, and there are often dust and impurities that affect the accuracy of the processed pressure sensor. Moreover, the stamping equipment, pressure detection equipment, cutting equipment, etc. used in the processing process are all placed separately. Due to the operation requirements of each equipment, relevant circuits need to be arranged, resulting in a messy processing site and often problems such as circuit entanglement and knotting, causing the machine to stop operating or even be damaged, bringing irreparable losses to the enterprise.

[0003] During the processing process, it is necessary to ensure that the axis lines of the two diaphragm seats are coaxial, and the diaphragm needs to be placed flat between the two diaphragm seats. In the existing processing technology, manual alignment or even alignment components are mostly used for alignment. However, due to the still existing deviation in alignment accuracy, the two diaphragm seats are not coaxial. Even during the processing process, the deviation is extremely small, but for high-range sensors, the deviation is also extremely large. And for the high-precision field, the accuracy of the produced pressure sensors cannot meet the industrial requirements.

[0004] Moreover, the deviation of each processed sensor is different. During calibration, there is no calibration standard, resulting in a high calibration workload and unable to meet the requirements of high-efficiency production.

[0005] During the processing process, there are processes of diaphragm cutting and welding, which are likely to cause the diaphragm to become loose and offset. Even if it is very small, it will affect the inspection accuracy of the pressure sensor.

[0006] Based on the above defects, it is necessary to propose a technical solution to overcome the above technical problems. Summary of the Invention

[0007] To solve the above problems, the present invention proposes an integral machine for processing pressure sensors. A new processing tooling is designed to improve the processing accuracy; and the relevant equipment of the tooling is placed in a special machine shell to achieve partitioned installation with functions.

[0008] To achieve the above object, the specific technical solution adopted by the present invention is as follows:

[0009] An integral machine for processing pressure sensors, the key technology of which lies in: including a welding machine housing, the welding machine housing is divided into a pressure sensor processing chamber, a control chamber, a welding machine chamber and a hydraulic press chamber by a partition board, and the control chamber, the welding machine chamber, the hydraulic press chamber communicate with the pressure sensor processing chamber;

[0010] A pressure sensor welding tooling is installed in the pressure sensor processing chamber. The pressure sensor welding tooling includes a base base and a base support plate. At least one support stud is erected between the base base and the base support plate. A lower fixture shaft is installed on the base base, and an upper fixture shaft is movably installed at the bottom of the base support plate. The lower fixture shaft and the upper fixture shaft are coaxially arranged. The lower diaphragm seat clamping end of the lower fixture shaft faces the upper diaphragm seat clamping end on the upper fixture shaft. A diaphragm fixture installation position is arranged on the lower fixture shaft. A welding torch is arranged between the base base and the base support plate, and the welding torch communicates with the welding machine chamber.

[0011] Through the above design, a further processing environment for pressure sensor processing is proposed. By setting the above chambers, hydraulic equipment, welding machine equipment, electric control equipment, pressure sensor processing operation tables, etc. are evenly divided and installed in separate chambers, effectively avoiding mutual interference between processing equipment. In the tooling, the lower fixture shaft and the upper fixture shaft are coaxially arranged, and the upper and lower diaphragm seats are respectively fixed on their diaphragm seat clamping ends. When the movable upper fixture shaft carries the upper diaphragm seat close to the lower diaphragm seat, the upper and lower diaphragm seats can still remain coaxial. And the movable upper fixture shaft can change the acting force between the upper and lower diaphragm seats, so that the diaphragm can be firmly clamped between the upper and lower diaphragm seats. Even cutting and welding will not cause the diaphragm to loosen. Effectively reducing the rejection rate of pressure sensors and improving the detection accuracy of pressure sensors. And the pressure sensors processed by the same tooling have basically the same error. When calibrating the pressure sensors, they can also be calibrated uniformly, improving the calibration accuracy and ensuring the quality of the products leaving the factory.

[0012] A diaphragm fixture is installed at the diaphragm fixture installation position. Specifically, it includes a fixture base. The fixture base includes an upper base and a lower base. Both the upper base and the lower base are in a cylindrical shape, and they are coaxially connected and integrally formed. The wall thickness of the lower base cylinder is greater than the wall thickness of the upper base cylinder; a cylindrical oil cylinder body is arranged at the top of the lower base. 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 support ring enclose a clamping space; an oil pressure driving structure is arranged in the clamping space. The oil pressure driving structure is used to connect with an oil pressure pump and is used to clamp the pressure sensor diaphragm under oil pressure drive; a locking nut is arranged on the upper part of the support ring. The locking nut is threadedly connected with the outer wall of the oil cylinder body and is used to lock the clamping space; a round hole is opened at the top of the locking nut, and the round hole is coaxial with the hole of the lower base cylinder.

[0013] The fixture base plays a role in supporting the entire fixture and defines the shape of the entire fixture. Under the drive of the oil pressure, the oil pressure drive structure will generate a squeezing force on the diaphragm of the pressure sensor placed in the clamping space, making the diaphragm of the pressure sensor tight and flat. By using oil pressure for driving, a tonnage-level force can be applied to the oil pressure drive structure, so that after the diaphragm is clamped, even if the fixture moves and shakes, the diaphragm will not become loose at all, meeting the accuracy requirements of high-precision pressure sensors. Among them, the fixture is fixed by a locking nut to keep the clamping space fixed. Even under the oil pressure drive, there will be no component displacement, avoiding deformation caused by extrusion. In the present invention, the base, the cylinder body, and the locking nut are all made of alloy tool steel Cr12MoV material.

[0014] Among them, a clamping hydraulic oil hole is provided in the cylinder body. The oil outlet of the clamping hydraulic oil hole is communicated with the clamping space, and a clamping pressure guiding joint is connected to the oil inlet of the clamping hydraulic oil hole; a tensioning hydraulic oil hole is provided in the lower base. The oil outlet of the tensioning hydraulic oil hole is communicated with the clamping space, and a tensioning pressure guiding joint is connected to the oil inlet of the tensioning hydraulic oil hole; gaskets are provided on both the clamping pressure guiding joint and the tensioning pressure guiding joint.

[0015] With the above scheme, the clamping pressure guiding joint and the tensioning pressure guiding joint are connected to an oil pressure pump through pipelines to provide power for the oil pressure drive structure. And in the clamping and tensioning processes, by controlling different oil pumps to pressurize and then injecting the oil pressure through the corresponding oil holes. The gaskets provided are for sealing purposes.

[0016] For further description, the oil pressure drive structure includes a clamping piston ring and a tensioning piston ring, and an inner cylinder sleeve is provided between the two; the lower part of the clamping piston ring is directly opposite to the oil outlet of a hydraulic oil hole, and the upper part of the clamping piston ring is directly opposite to the bottom of the support ring; the lower part of the tensioning piston ring is directly opposite to the oil outlet of another hydraulic oil hole, and the upper part of the tensioning piston ring is directly opposite to the bottom of the support ring.

[0017] With the above scheme, the inner cylinder sleeve plays a role in separating the clamping piston ring and the tensioning piston ring, and during driving, the two 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.

[0018] For further description, the clamping piston ring includes a lower clamping drive ring block and an upper clamping abutting ring block, which are abutted; a clamping protrusion is provided on the upper part of the clamping abutting ring block, and a clamping groove is provided at the bottom of the support ring, and the clamping groove is directly above the clamping protrusion and the structure is adapted; the tensioning piston ring includes a lower tensioning drive ring block and an upper tensioning abutting ring block, which are abutted; a tensioning protrusion is provided on the upper part of the tensioning abutting ring block, and a tensioning groove is provided at the bottom of the support ring, and the tensioning groove is directly above the tensioning protrusion and the structure is adapted.

[0019] The structure adapted between the clamping piston ring and the supporting ring forms a clamping structure for the pressure sensor diaphragm, and the structure adapted between the tensioning piston ring and the supporting ring forms a tensioning structure for the pressure sensor diaphragm; the clamping piston ring is upwardly extruded by the hydraulic pressure and acts on the clamping driving ring block, and the pressure sensor diaphragm is extruded during the upward movement of the clamping driving ring block; finally, the top of the clamping driving ring block contacts and starts to extrude the pressure sensor diaphragm until the clamping driving ring block drives the pressure sensor diaphragm to abut against the top of the clamping groove, and the clamping groove plays a role of extrusion and limitation. After clamping in place, the pressure sensor diaphragm is in a fixed state, the tensioning piston ring is upwardly extruded by the hydraulic pressure and acts on the tensioning driving ring block, the top of the tensioning driving ring block contacts and starts to extrude the pressure sensor diaphragm, and since the pressure sensor diaphragm is in a fixed state, after extrusion, the diaphragm is tensioned in all directions in the plane, so that the diaphragm remains flat and has tension. The magnitude of the tensioning force is set according to the accuracy of the pressure sensor.

[0020] Further description, the height of the tensioning protrusion is greater than the height of the clamping protrusion.

[0021] The height of the tensioning protrusion being greater than the height of the clamping protrusion is for the diaphragm to be more reasonable in force application, making the diaphragm more taut and smooth, facilitating better quality of the pressure sensor diaphragm produced during subsequent cutting. And it increases the tensioning range, which is set according to different sensor accuracies.

[0022] Further description, the inner wall of the oil cylinder body is a two-stage stepped inner wall, the oil outlet of the hydraulic oil hole arranged inside the oil cylinder body is opened on the step surface of the step, and the clamping driving ring block is arranged above the step surface; the oil cylinder inner sleeve includes a lower support inner sleeve and an upper isolation inner sleeve, which are integrally formed, and the bottom surface of the support inner sleeve is fixedly installed on the top of the lower base; the top surface of the support inner sleeve is flush with the step surface, and the isolation inner sleeve is arranged on the side of the top surface of the support inner sleeve close to the step surface; the outer wall of the isolation inner sleeve abuts against the inner wall of the clamping piston ring, and the outer wall of the clamping piston ring abuts against the second-stage inner wall of the oil cylinder body; the outer wall of the supporting ring abuts against the second-stage inner wall of the oil cylinder body; the inner wall of the isolation inner sleeve abuts against the outer wall of the tensioning piston ring, and the inside of the tensioning piston ring abuts against the outer wall of the upper base; the outer wall of the support inner sleeve abuts against the first-stage inner wall of the oil cylinder body, and the inner wall of the support inner sleeve abuts against the outer wall of the upper base; the oil cylinder inner sleeve is provided with an auxiliary oil hole, the oil inlet of the auxiliary oil hole is communicated with the outlet of the tensioning hydraulic oil hole, and the oil outlet of the auxiliary oil hole is directly opposite to the bottom of the tensioning piston ring; at least one sealing groove is respectively opened along the circumferential direction on the inner and outer side walls of the support inner sleeve, the inner and outer side walls of the clamping piston ring, and the inner and outer side walls of the tensioning piston ring, and a sealing ring is fixedly arranged in the sealing groove; a retaining ring is also arranged on one side of the sealing groove close to the supporting ring.

[0023] The isolation inner sleeve is used to separate the clamping piston ring and the tensioning piston ring, so that the clamping piston ring and the tensioning piston ring do not affect each other when they are stressed and act. The sealing ring is placed in the sealing groove to play a sealing role. The retaining ring placed above the sealing ring is to protect the sealing ring from being deformed and damaged under the overpressure driven by the oil pressure. The inner wall of the oil cylinder body is a two-stage stepped inner wall, which is convenient for the setting of the hydraulic oil holes.

[0024] For further description, the lower base is connected to the oil cylinder body by screws, and the lower base is connected to the inner sleeve of the oil cylinder by screws.

[0025] The lower base is connected and fixed to the oil cylinder body and the support inner sleeve by screws, which can strengthen the stability of the bottom of the fixture and make the force applied to the diaphragm of the pressure sensor more uniform.

[0026] For a further technical solution, one end of the upper fixture shaft away from the clamping end of the upper membrane seat is sleeved in the upper bearing seat. The upper bearing seat is fixed at the fixed position of the upper fixture shaft of the guiding sliding sleeve. The guiding sliding sleeve is connected to the oil cylinder output shaft of the hydraulic cylinder. The upper fixture shaft is coaxially arranged with the oil cylinder output shaft. The hydraulic cylinder is fixed on the base support plate;

[0027] On both sides of the fixed position of the upper fixture shaft of the guiding sliding sleeve, a guiding through hole is symmetrically arranged. A fixture column is respectively sleeved in the two guiding through holes. The axis of the fixture column is parallel to the axis of the upper fixture shaft. The two fixture columns are fixed between the base bottom and the base support plate;

[0028] A welding torch fixture is fixed on any one of the fixture columns. The welding torch fixture is used to connect the welding torch.

[0029] Adopting the above scheme, the oil cylinder output shaft of the hydraulic cylinder drives the upper fixture shaft to move up and down, so as to carry the upper membrane seat close to the lower membrane seat. And the hydraulic cylinder adopts a 16Mpa 12-ton special hydraulic cylinder, so that the diaphragm can be firmly fixed between the upper and lower membrane seats, effectively preventing the diaphragm between the membrane seats from deforming, loosening and being damaged during the diaphragm cutting and welding processes. And the guiding sliding sleeve can limit the upper fixture shaft from shaking and deviating during the moving process, so as to ensure that when the upper membrane seat descends to the lower membrane seat, the two still remain coaxial. The fixture column is inserted into the guiding through hole. The fixture column is coaxial with the upper fixture shaft and the lower fixture shaft. Combined with the guiding sliding sleeve, when the hydraulic cylinder drives the upper fixture shaft on the guiding sliding sleeve to descend, the guiding sliding sleeve sleeved on the fixture column can only move along the extending direction of the fixture column and the direction is fixed, so that the upper membrane seat will not deviate laterally. Ensure that when the upper membrane seat descends to the lower membrane seat, the two still remain coaxial. The upper and lower membrane seats and the diaphragm are welded together by a welding torch to form an integrally formed pressure sensor. The welding torch is aimed at the top of the lower membrane seat.

[0030] In a further technical solution, an upper membrane seat mounting groove is formed on the end face of the clamping end of the upper fixture shaft for the membrane seat, and a magnetic block is fixed at the top of the upper membrane seat mounting groove;

[0031] A diaphragm cutting tool mounting position is arranged on the outer wall of the clamping end of the upper fixture shaft for the membrane seat.

[0032] With the above magnetic block, after the upper membrane seat is placed in the upper membrane seat mounting groove, the magnetic block can suck the membrane seat to prevent it from falling down, without the need for other fixing devices. This makes the processing more convenient. After the welding is completed, the staff can quickly remove the processed pressure sensor. The tool mounting position can mount the tool on the upper fixture shaft for the tool to cut the diaphragm beyond the edge of the membrane seat, so as to carry out the subsequent welding process. The tool mounting position can be a thread, a pin hole, etc.

[0033] In a further technical solution, a lower membrane seat mounting groove is formed on the end face of the clamping end of the lower fixture shaft. The lower fixture shaft is sleeved in a lower bearing seat, and the lower bearing seat is fixed on the base of the pedestal. One side of the lower bearing seat close to the end of the lower fixture shaft away from the clamping end of the lower membrane seat is set as the diaphragm fixture mounting position; One end of the lower fixture shaft away from the clamping end of the lower membrane seat passes through the lower bearing seat and the base of the pedestal and then is connected to a lower fixture shaft rotation driving assembly;

[0034] The lower fixture shaft rotation driving assembly includes a rotation motor, a driving gear is connected to the output shaft of the rotation motor, a driven gear is connected to one end of the lower fixture shaft away from the clamping end of the lower membrane seat, and the driving gear meshes with the driven gear.

[0035] With the above solution, during the processing, the lower membrane seat is placed in the lower membrane seat mounting groove, and during the downward movement of the upper membrane seat, the lower membrane seat remains stationary, so that the upper and lower membrane seats clamp the diaphragm in the middle. Among them, the diaphragm is placed on the top of the lower membrane seat by a diaphragm fixture, and the edge of the diaphragm is clamped by the diaphragm fixture and forms tension. After the upper membrane seat descends, the diaphragm is fixedly clamped between the upper and lower membrane seats. After cutting, welding is carried out under the drive of the lower fixture shaft rotation driving assembly. The rotation motor drives the lower fixture shaft to rotate. During the welding process, the upper fixture shaft remains stationary.

[0036] In a further technical solution, a fixture bottom plate is also fixed on the base of the pedestal, and the lower bearing seat sleeving the lower fixture shaft is fixed on the base of the pedestal through the fixture bottom plate; A fixture support plate is fixed at the bottom of the pedestal support plate, and both ends of the fixture column between the base of the pedestal and the pedestal support plate are respectively fixed through the fixture bottom plate and the pedestal support plate;

[0037] The base of the pedestal is fixed on a tooling base, and at least 4 tooling base foot balance seats are further arranged at the bottom of the tooling base.

[0038] With the above solution, the fixture column can be conveniently fixed between the base pedestal and the base support plate. The tooling base foot balance seat adjusts the tooling to keep it balanced.

[0039] A further technical solution is that a processing observation door and a transmission observation port are provided on the display surface of the welding machine housing corresponding to the pressure sensor processing chamber. The processing observation door is located above the transmission observation port, and a processing observation window and a handle are provided on the processing observation door.

[0040] With the above solution, the transmission observation port is used to observe the transmission equipment of the pressure sensor welding tooling, and the processing observation door is used to observe the processing process of the pressure sensor. And opening the processing observation door can realize operations such as replacing the processing tool of the tooling, placing processing components, and equipment maintenance. It is convenient and fast, will not cause collision and friction with other processing equipment, and avoids mutual interference.

[0041] A further technical solution is that the control chamber includes an operation display installation sub-chamber, a parameter display screen installation sub-chamber, and a PC installation sub-chamber; the parameter display screen installation sub-chamber is arranged above the operation display installation sub-chamber. On the display surface of the welding machine housing corresponding to the operation display installation sub-chamber, a rotatable display installation cabinet door is installed, and operation buttons and at least one touch display screen are arranged on the display installation cabinet door; a keyboard drawer is provided in the parameter display screen installation sub-chamber, and this keyboard drawer is used to place a keyboard communicated with the control chamber; a parameter display screen is provided on the display surface of the welding machine housing corresponding to the parameter display screen installation sub-chamber; on the display surface of the welding machine housing corresponding to the PC installation sub-chamber, a PC cabinet door and a PC heat dissipation cabinet door are provided. At least one observation window is provided on the PC cabinet door, and a PC heat dissipation mesh hole is provided on the PC heat dissipation cabinet door. A control circuit through hole is provided on the back of the welding machine housing corresponding to the PC installation sub-chamber.

[0042] With the above solution, by using the display installation sub-chamber, the parameter display screen installation sub-chamber, and the PC installation sub-chamber, the electrical control equipment for the entire pressure sensor processing process is installed in partitioned chambers, realizing the automatic control of the processing tooling.

[0043] A further technical solution is that the control chamber and the hydraulic press chamber are located on both sides of the pressure sensor processing chamber. The PC installation sub-chamber of the control chamber is located above the welding machine chamber. The hydraulic press chamber is located at one end of the welding machine housing. The PC installation sub-chamber and the welding machine chamber are located at the other end of the welding machine housing;

[0044] In order to store processing tools and provide a spare space, a spare tool chamber is also provided inside the welding machine housing, and this spare tool chamber is located below the keyboard drawer;

[0045] A spare external heating element mounting frame is also provided at the top of the welding machine housing. The spare external heating element mounting frame is surrounded circumferentially by an external partition, and spare element heat dissipation mesh holes are provided on the external partition.

[0046] A status display lamp is fixed on the welding machine housing, and the status display lamp is communicated with the control chamber.

[0047] An installation base is provided at the bottom of the welding machine housing.

[0048] With the above solution, the layout is reasonable, and all devices are integrally placed inside the housing. The integration degree is high, and mutual interference is not likely to occur. The installation of the spare external heating element mounting frame can be used to place other heating devices, which is convenient for ventilation and heat dissipation and is integrally placed with the housing. Through the above status display lamp, the processing status of the pressure sensor is displayed. The installation base is used to keep the whole device balanced.

[0049] A further technical solution is that a welding machine push-in port is opened on the display surface of the welding machine housing corresponding to the welding machine chamber, a welding machine heat dissipation mesh hole is opened on the back of the welding machine housing corresponding to the welding machine chamber, the welding machine chamber is used for detachably connecting a welding machine, and a welding machine wire passing hole is opened on the side wall of the welding machine chamber for the welding machine in the welding machine chamber to connect to the welding gun in the pressure sensor processing chamber.

[0050] With the above solution, the welding machine is integrally set. In order to facilitate installation into the housing, a welding machine push-in port is provided. During the assembly process of the overall processing equipment, it only needs to be pushed into the housing through the welding machine push-in port. The assembly is convenient and fast.

[0051] A further technical solution is that the hydraulic unit has large heat dissipation. In order to ensure its normal operation, hydraulic machine heat dissipation mesh holes are opened on the display surface, back surface and top of the welding machine housing corresponding to the hydraulic machine chamber. A hydraulic machine is installed in the hydraulic machine chamber, and the hydraulic machine is connected to the hydraulic cylinder in the pressure sensor processing chamber.

[0052] Advantages of the present invention: A further processing environment for the pressure sensor processing is proposed. By setting the above-mentioned chamber and installing hydraulic equipment, welding equipment, electronic control equipment, pressure sensor processing operation tables, etc. in separate chambers, mutual interference between processing equipment is effectively avoided. In the tooling, the lower fixture shaft and the upper fixture shaft are coaxially arranged, and the upper and lower membrane seats are respectively fixed to their membrane seat clamping ends. When the movable upper fixture shaft carries the upper membrane seat close to the lower membrane seat, the upper and lower membrane seats can still remain coaxial. Moreover, the movable upper fixture shaft can change the acting force between the upper and lower membrane seats, enabling the diaphragm to be firmly clamped between the upper and lower membrane seats. Even during cutting and welding, the diaphragm will not become loose. The rejection rate of the pressure sensor is effectively reduced, and the detection accuracy of the pressure sensor is improved. In addition, the errors of the pressure sensors processed by the same tooling are basically the same. When calibrating the pressure sensors, they can also be calibrated uniformly, improving the calibration accuracy and ensuring the quality of the products leaving the factory. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 is a perspective structural schematic diagram of the welding machine housing Figure 1 ;

[0054] Figure 2 is a perspective structural schematic diagram of the welding machine housing Figure 2 ;

[0055] Figure 3 is a front view of the welding machine housing;

[0056] Figure 4 is a top view of the welding machine housing;

[0057] Figure 5 is Figure 4 a cross-sectional schematic diagram taken along line A-A in

[0058] Figure 6 is a rear view of the welding machine housing;

[0059] Figure 7 is a perspective structural schematic diagram of the pressure sensor welding tooling Figure 1 ;

[0060] Figure 8 is a perspective structural schematic diagram of the pressure sensor welding tooling Figure 2 ;

[0061] Figure 9 is a side view of the pressure sensor welding tooling;

[0062] Figure 10 is Figure 9 a cross-sectional schematic diagram taken along line B-B in

[0063] Figure 11 is Figure 10 an enlarged schematic diagram of A in

[0064] Figure 12 It is a schematic diagram of the connection and installation of the upper fixture shaft;

[0065] Figure 13 It is a schematic diagram of the structure of the fixture shaft rotation drive assembly. Specific embodiments

[0066] The following further elaborates on the specific embodiments and working principles of the present invention in conjunction with the accompanying drawings.

[0067] An integrated machine for processing pressure sensors, as can be seen from Figure 1 , 2 , 3, 4, and 5, includes a welding machine housing 1. The welding machine housing 1 is divided into a pressure sensor processing chamber 2, a control chamber 3, a welding machine chamber 4, and a hydraulic press chamber 5 by a partition. The control chamber 3, the welding machine chamber 4, and the hydraulic press chamber 5 communicate with the pressure sensor processing chamber 2.

[0068] A pressure sensor welding tooling H is installed in the pressure sensor processing chamber 2. See Figure 5 .

[0069] As can be seen from Figures 7 - 9 , this pressure sensor welding tooling includes a base base H1a and a base support plate H1b. At least one support stud H2 is erected between the base base H1a and the base support plate H1b. A lower fixture shaft H3 is installed on the base base H1a. The bottom of the base support plate H1b is movably installed with an upper fixture shaft H4. The lower fixture shaft H3 and the upper fixture shaft H4 are coaxially arranged. The lower diaphragm seat clamping end of the lower fixture shaft H3 faces the upper diaphragm seat clamping end of the upper fixture shaft H4. A diaphragm fixture installation position is provided on the lower fixture shaft H3. A welding torch is provided between the base base H1a and the base support plate H1b, and the welding torch communicates with the welding machine chamber 4.

[0070] In this embodiment, the base base H1a is fixed on a tooling base H12, and 4 tooling base foot balance seats H13 are further provided at the bottom of the tooling base H12. Specifically, see Figures 7 - 9 .

[0071] In this embodiment, in combination with Figure 10 , it can be seen that a fixture bottom plate H14b is also fixed on the base base H1a. The lower bearing seat H9 sleeving the lower fixture shaft H3 is fixed on the base base H1a through the fixture bottom plate H14b;

[0072] A fixture support plate H14a is fixed to the bottom of the base support plate H1b, and both ends of the fixture column H8 between the base base H1a and the base support plate H1b are fixed via the fixture bottom plate H14b and the base support plate H1b respectively.

[0073] Combined with Figure 11 It can be seen that an upper film seat mounting groove H4a is provided on the end face of the film seat clamping end of the upper fixture shaft H4, and a magnet H4b is fixed to the top of the upper film seat mounting groove H4a. After the upper film seat is placed in the upper film seat mounting groove H4a, since the upper film seat is made of metal, the magnet has an attractive force on the upper film seat, and the magnitude of the attractive force is greater than the gravity of the magnet. In this embodiment, the inner diameter of the upper film seat mounting groove is adapted to the outer diameter of the upper film seat, and the size by which the inner diameter value of the upper film seat mounting groove exceeds the outer diameter value of the upper film seat is within the error range. Even if the placement position is offset each time, it is within the error range. The depth of the upper film seat mounting groove is less than or equal to the height of the upper film seat.

[0074] A film cutting tool mounting position is provided on the outer wall of the film seat clamping end of the upper fixture shaft H4. In the embodiment, the tool for cutting the film is connected by a thread, and a tool connection thread is provided on the outer wall of the film seat clamping end of the upper fixture shaft H4. And the tool can rotate circumferentially along the upper fixture shaft H4.

[0075] Combined with Figure 10 and 12 It can be seen that one end of the upper fixture shaft H4 away from the film seat clamping end is sleeved in the upper bearing seat H5, the upper bearing seat H5 is fixed at the upper fixture shaft fixing position of the guide sliding sleeve H6, the guide sliding sleeve H6 is connected to the oil cylinder output shaft H7a of the 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 the base support plate H1b.

[0076] Combined with Figure 10 and 12 It can be seen that a guide through hole is symmetrically provided at both end portions of the upper fixture shaft fixing position of the guide sliding sleeve H6, and a fixture column H8 is respectively sleeved in the two guide through holes. The axis of the fixture column H8 is parallel to the axis of the upper fixture shaft H4, that is, the coaxiality of the upper fixture shaft H4 and the lower fixture shaft H3 is realized, and the axes of the upper fixture shaft H4 and the lower fixture shaft H3 are parallel to the fixture column 8.

[0077] Combined with Figure 10 It can be seen that the two fixture columns H8 are fixed between the base base H1a and the base support plate H1b via the fixture bottom plate H14b and the fixture support plate H14a.

[0078] A welding torch fixture H11 is fixed on one of the fixture columns H8, and the welding torch fixture H11 is used to connect the welding torch. In this embodiment, the welding torch is not shown in the figure.

[0079] Combined Figure 10 It can also be seen that the end face of the clamping end of the lower film seat of the lower clamping shaft H3 is provided with a lower film seat mounting groove H3a. The lower clamping shaft H3 is sleeved in the lower bearing seat H9, and the lower bearing seat H9 is fixed on the base base H1a. The side of the lower bearing seat H9 close to the end of the lower clamping shaft H3 away from the clamping end of the lower film seat is set as the diaphragm fixture mounting position; one end of the lower clamping shaft H3 away from the clamping end of the lower film seat passes through the lower bearing seat H9 and the base base H1a and then is connected to the lower clamping shaft rotation drive assembly H10.

[0080] Combined Figure 13 and Figure 11 It can be seen that the lower clamping shaft rotation drive assembly H10 includes a rotation motor H10a. A drive gear H10b is connected to the output shaft of the rotation motor H10a. One end of the lower clamping shaft H3 away from the clamping end of the lower film seat is connected to a driven gear H10c, and the drive gear H10b meshes with the driven gear H10c.

[0081] In this embodiment, combined Figure 3 It can be seen that the control chamber 3 includes an operation display installation sub-chamber 3a, a parameter display screen installation sub-chamber 3b, and a PC installation sub-chamber 3c;

[0082] In this embodiment, combined Figure 1 and 3 It can be seen that a spare tool chamber 7 is further provided inside the welding machine housing 1, and the spare tool chamber 7 is located below the keyboard drawer.

[0083] In this embodiment, from Figures 1 - 4 It can be seen that the control chamber 3 and the hydraulic press chamber 5 are located on both sides of the pressure sensor processing chamber 2. The PC installation sub-chamber 3c of the control chamber 3 is located above the welding machine chamber 4. The hydraulic press chamber 5 is located at one end of the welding machine housing 1, and the PC installation sub-chamber 3c and the welding machine chamber 4 are located at the other end of the welding machine housing 1.

[0084] In this embodiment, combined Figure 3 It can be seen that the inside of the pressure sensor processing chamber 2 is used to fix the pressure sensor welding tooling. A processing observation door 2a and a transmission observation port 2b are provided on the display surface of the welding machine housing 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 provided on the processing observation door 2a.

[0085] In this embodiment, the parameter display screen installation sub-chamber 3b is arranged above the operation display installation sub-chamber 3a. A rotatable display installation cabinet door is installed on the display surface of the welding machine housing 1 corresponding to the operation display installation sub-chamber 3a. Operation buttons and three touch display screens are arranged on the display installation cabinet door; the parameter display screen installation sub-chamber 3b is provided with a keyboard drawer for placing a keyboard communicated with the control chamber 3.

[0086] In this embodiment, a parameter display screen is arranged on the display surface of the welding machine housing 1 corresponding to the parameter display screen installation sub-chamber 3b.

[0087] In this embodiment, a PC cabinet door and a PC heat dissipation cabinet door are arranged on the display surface of the welding machine housing 1 corresponding to the PC installation sub-chamber 3c. Two observation windows are opened on the PC cabinet door, and a PC heat dissipation mesh hole is opened on the PC heat dissipation cabinet door. A control circuit through hole is opened on the back of the welding machine housing 1 corresponding to the PC installation sub-chamber 3c.

[0088] In this embodiment, combined with Figure 1 and 4 it can be seen that a spare external heating element installation frame 8 is further arranged on the top of the welding machine housing 1. The spare external heating element installation frame 8 is surrounded by an external partition in the circumferential direction, and spare element heat dissipation mesh holes are opened on the external partition.

[0089] In this embodiment, combined with Figure 1 and 3 it can be seen that a status display lamp 9 is fixed on the welding machine housing 1, and the status display lamp 9 is communicated with the control chamber 3.

[0090] In this embodiment, combined with Figure 1 it can be seen that a welding machine push-in port is opened on the display surface of the welding machine housing 1 corresponding to the welding machine chamber 4. Combined with Figure 6 it can be seen that a welding machine heat dissipation mesh hole is opened on the back of the welding machine housing 1 corresponding to the welding machine chamber 4. The welding machine chamber 4 is used for detachably connecting a welding machine. A welding machine wire passing hole is opened on the side wall of the welding machine chamber 4 for the welding machine in the welding machine chamber 4 to connect a welding gun in the pressure sensor processing chamber 2.

[0091] In this embodiment, combined with Figure 1 、 6 and 4 it can be seen that welding machine heat dissipation mesh holes are opened on the display surface, back surface and top of the welding machine housing 1 corresponding to the hydraulic press chamber 5.

[0092] In this embodiment, combined with Figure 2 it can be seen that an installation base 10 is arranged at the bottom of the welding machine housing 1.

Claims

1. An integrated machine for processing pressure sensors, characterized in that: It includes a welding machine housing (1), which is divided into a pressure sensor processing chamber (2), a control chamber (3), a welding machine chamber (4), and a hydraulic press chamber (5) by a partition. The control chamber (3), the welding machine chamber (4), and the hydraulic press chamber (5) communicate with the pressure sensor processing chamber (2). A pressure sensor welding fixture (H) is installed in the pressure sensor processing chamber (2). The pressure sensor welding fixture (H) includes a base base (H1a) and a base support plate (H1b). At least one support stud (H2) is erected between the base base (H1a) and the base support plate (H1b). A lower clamp shaft (H3) is installed on the base base (H1a). An upper clamp shaft (H4) is movably installed at the bottom of the base support plate (H1b). The lower clamp shaft (H3) and the upper clamp shaft (H4) are coaxially arranged. The lower membrane seat clamping end of the lower clamp shaft (H3) faces the upper membrane seat clamping end of the upper clamp shaft (H4). A diaphragm clamp installation position is provided on the lower clamp shaft (H3). A welding torch is arranged between the base base (H1a) and the base support plate (H1b), and the welding torch communicates with the welding machine chamber (4). An upper membrane seat installation groove (H4a) is formed on the end face of the upper membrane seat clamping end of the upper clamp shaft (H4), and a fixing magnet (H4b) is fixed at the top of the upper membrane seat installation groove (H4a). A diaphragm cutting tool installation position is provided on the outer wall of the upper membrane seat clamping end of the upper clamp shaft (H4). A lower membrane seat installation groove (H3a) is formed on the end face 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), and the lower bearing seat (H9) is fixed on the base base (H1a). The upper side of the lower bearing seat (H9) is the diaphragm clamp installation position. The lower end of the lower clamp shaft (H3) passes through the lower bearing seat (H9) and the base base (H1a) and then connects to a lower clamp shaft rotation drive assembly (H10). The lower clamp shaft rotation drive assembly (H10) includes a rotation motor (H10a). A drive gear (H10b) is connected to the output shaft of the rotation motor (H10a). A driven gear (H10c) is connected to the end of the lower clamp shaft (H3) far from the lower membrane seat clamping end. The drive gear (H10b) meshes with the driven gear (H10c). During the processing, a lower membrane seat is placed in the lower membrane seat installation groove (H3a). During the descent of the upper membrane seat, the lower membrane seat remains stationary, so that the diaphragm is clamped between the upper and lower membrane seats. Among them, the diaphragm is placed on the top of the lower membrane seat by a diaphragm clamp, and the edge of the diaphragm is clamped by the diaphragm clamp to form tension. After the upper membrane seat descends, the diaphragm is fixed between the clamped upper and lower membrane seats. After cutting, welding is carried out under the drive of the lower clamp shaft rotation drive assembly (H10).

2. The integrated machine for processing a pressure sensor according to claim 1, wherein: One end of the upper fixture shaft (H4) far from the clamping end of the upper film seat is sleeved in the upper bearing seat (H5), the upper bearing seat (H5) is fixed on the upper fixture shaft fixing position of the guiding sliding sleeve (H6), the guiding sliding sleeve (H6) is connected with the oil cylinder output shaft (H7a) of the 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 the base support plate (H1b); On both sides of the upper fixture shaft fixing position of the guiding sliding sleeve (H6), a guiding through hole is symmetrically arranged at each end. A fixture column (H8) is sleeved in each of the two guiding through holes. The axis of the fixture column (H8) is parallel to the axis of the upper fixture shaft (H4). The two fixture columns (H8) are fixed between the base base (H1a) and the base support plate (H1b); A welding torch fixture (H11) is fixed on any one of the fixture columns (H8), and the welding torch fixture (H11) is used to connect the welding torch.

3. The integrated machine for processing a pressure sensor according to claim 1, wherein: A fixture bottom plate (H14b) is also fixed on the base base (H1a). The lower bearing seat (H9) sleeving the lower fixture shaft (H3) is fixed on the base base (H1a) through the fixture bottom plate (H14b); a fixture support plate (H14a) is fixed at the bottom of the base support plate (H1b). The two ends of the fixture column (H8) between the base base (H1a) and the base support plate (H1b) are respectively fixed through the fixture bottom plate (H14b) and the base support plate (H1b); The base base (H1a) is fixed on the tooling base (H12), and at least 4 tooling base foot balance seats (H13) are further arranged at the bottom of the tooling base (H12).

4. The integrated machine for processing a pressure sensor according to claim 1, wherein: On the display surface of the welding machine housing (1) corresponding to the pressure sensor processing chamber (2), a processing observation door (2a) and a transmission observation port (2b) are arranged. The processing observation door (2a) is located above the transmission observation port (2b). A processing observation window and a handle are arranged on the processing observation door (2a).

5. The integrated machine for processing a pressure sensor according to claim 1, characterized in that: The control chamber (3) includes an operation display installation sub-chamber (3a), a parameter display screen installation sub-chamber (3b), and a PC installation sub-chamber (3c); the parameter display screen installation sub-chamber (3b) is arranged above the operation display installation sub-chamber (3a), and a rotatable display installation cabinet door is installed on the display surface of the welding machine housing (1) corresponding to the operation display installation sub-chamber (3a), and operation buttons and at least one touch display screen are arranged on the display installation cabinet door; the parameter display screen installation sub-chamber (3b) is provided with a keyboard drawer for placing a keyboard communicating with the control chamber (3); a parameter display screen is arranged on the display surface of the welding machine housing (1) corresponding to the parameter display screen installation sub-chamber (3b); on the display surface of the welding machine housing (1) corresponding to the PC installation sub-chamber (3c), a PC cabinet door and a PC heat dissipation cabinet door are provided, at least one observation window is opened on the PC cabinet door, a PC heat dissipation mesh hole is opened on the PC heat dissipation cabinet door, and a control circuit through hole is opened on the back surface of the welding machine housing (1) corresponding to the PC installation sub-chamber (3c).

6. The integrated machine for processing a pressure sensor according to claim 5, wherein: The control chamber (3) and the hydraulic press chamber (5) are located on both sides of the pressure sensor processing chamber (2), the PC installation sub-chamber (3c) of the control chamber (3) is located above the welding machine chamber (4), the hydraulic press chamber (5) is located at one end of the welding machine housing (1), and the PC installation sub-chamber (3c) and the welding machine chamber (4) are located at the other end of the welding machine housing (1); A spare tool chamber (7) is further provided inside the welding machine housing (1), and the spare tool chamber (7) is located below the keyboard drawer; A spare external heating element installation frame (8) is further provided on the top of the welding machine housing (1), and the spare external heating element installation frame (8) is surrounded by an external partition in the circumferential direction, and spare element heat dissipation mesh holes are opened on the external partition; A status display lamp (9) is fixed on the welding machine housing (1), and the status display lamp (9) is communicated with the control chamber (3); An installation base (10) is arranged at the bottom of the welding machine housing (1).

7. The integrated machine for processing a pressure sensor according to claim 1, wherein: A welding machine push-in port is opened on the display surface of the welding machine housing (1) corresponding to the welding machine chamber (4), a welding machine heat dissipation mesh hole is opened on the back surface of the welding machine housing (1) corresponding to the welding machine chamber (4), the welding machine chamber (4) is used for detachably connecting a welding machine, and a welding machine wire passing hole is opened on the side wall of the welding machine chamber (4) for the welding machine in the welding machine chamber (4) to connect the welding torch in the pressure sensor processing chamber (2).

8. The integrated machine for processing a pressure sensor according to claim 2, wherein: Hydraulic press heat dissipation mesh holes are opened on the display surface, back surface, and top of the welding machine housing (1) corresponding to the hydraulic press chamber (5), a hydraulic press is installed in the hydraulic press chamber (5), and the hydraulic press is connected to the hydraulic cylinder (H7) in the pressure sensor processing chamber (2).

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