CN114216671A - Mechanical life testing device with adjustable insertion angle and working method thereof - Google Patents
Mechanical life testing device with adjustable insertion angle and working method thereof Download PDFInfo
- Publication number
- CN114216671A CN114216671A CN202111641048.7A CN202111641048A CN114216671A CN 114216671 A CN114216671 A CN 114216671A CN 202111641048 A CN202111641048 A CN 202111641048A CN 114216671 A CN114216671 A CN 114216671A
- Authority
- CN
- China
- Prior art keywords
- angle
- plugging
- mounting plate
- angle adjusting
- rack
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 41
- 238000003780 insertion Methods 0.000 title claims abstract description 37
- 230000037431 insertion Effects 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000033001 locomotion Effects 0.000 claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims description 34
- 230000008569 process Effects 0.000 claims description 22
- 210000000078 claw Anatomy 0.000 claims description 9
- 239000012212 insulator Substances 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 10
- 239000002131 composite material Substances 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a mechanical life testing device with an adjustable insertion angle and a working method thereof; the testing device comprises an upper angle adjusting clamp module, a lower angle adjusting clamp module and a rack. The upper angle adjusting clamp module and the lower angle adjusting clamp module are both installed on the rack and are opposite to each other. Go up angle regulation anchor clamps module and angle regulation anchor clamps module can relative movement down, carry out the repeated plug of plug connector public end and plug connector female end. The upper angle adjusting clamp module comprises an upper base, a first aligning force measuring assembly and a first mounting plate. The lower angle adjusting clamp module comprises a lower base, a second mounting plate and a second aligning force measuring assembly. The invention can independently set the plugging angle of the plug or the socket according to the requirement, and can also set the plugging angle of the plug and the socket simultaneously, thereby forming a multi-angle composite mechanical life test and simulating the actual installation working condition of the connector to the maximum extent.
Description
Technical Field
The invention relates to a mechanical life testing device with an adjustable plugging angle and a mechanical life testing method, wherein the device can adjust the plugging angle of a mounting panel of a sample to be tested, adjust and detect the magnitude of reset force, detect the plugging force value, analyze the abrasion condition under the plugging with the angle and can also perform failure test analysis; the test method is more suitable for practical application, and belongs to the field of industrial, rail traffic and new energy application.
Background
The existing connector mechanical life testing device is mostly direct-up and direct-down type plugging equipment without plugging angles, plugging planes of a plug and a socket are parallel, and plugging working conditions are single; in the practical installation application occasion of the connector, an installer cannot keep the plug and socket plugging planes parallel all the time like mechanical equipment, and in the occasion with limited spatial position, the installer may carry out blind plugging, and at the moment, the parallelism of the plugging planes cannot be ensured; the connector is stressed under a certain insertion angle and can return to the right under the action of the guide mechanism, the stress of the insulator and the pin hole piece is more complex in the process, and the mechanical life of the connector is greatly influenced, so that the mechanical life test method without the insertion angle is not in line with the actual installation method of the product, and the test result has larger deviation with the actual application condition.
Disclosure of Invention
The invention aims to provide a mechanical life testing device with an adjustable insertion angle and a mechanical life testing method aiming at the defects of the prior art.
The invention relates to a mechanical life testing device with an adjustable insertion angle. The upper angle adjusting clamp module and the lower angle adjusting clamp module are both installed on the rack and are opposite to each other. Go up angle regulation anchor clamps module and angle regulation anchor clamps module can relative movement down, carry out the repeated plug of plug connector public end and plug connector female end.
The upper angle adjusting clamp module comprises an upper base, a first aligning force measuring assembly and a first mounting plate. The first mounting plate and the bottom of the upper base form a first rotating pair. The first aligning force measuring assembly comprises a first gear, a first rack, a first air cylinder and a first pressure sensor. The first gear is fixed with the first mounting plate. The first cylinder is fixed on the upper base; a first rack is fixed on a piston rod of the first air cylinder. The first gear is meshed with the first rack. The first pressure sensor is mounted on the upper base, and the detection portion is aligned with the first rack. The mounting position of the first pressure sensor can be adjusted along the sliding direction of the first rack, and the first pressure sensor can be locked at different positions. The first rack can be propped against the first pressure sensor under the driving of the first air cylinder.
The lower angle adjusting clamp module comprises a lower base, a second mounting plate and a second aligning force measuring assembly. The second mounting plate and the lower base form a second revolute pair. The second aligning force measuring assembly comprises a second gear, a second rack, a second air cylinder and a second pressure sensor. The second gear and the second mounting plate form a second revolute pair. The second cylinder is fixed on the lower base; and a piston rod of the second cylinder is fixed with the second rack. The second gear is engaged with the second rack. The second pressure sensor is mounted on the lower base, and the detection portion is aligned with the second rack. The mounting position of the second pressure sensor can be adjusted along the sliding direction of the second rack and can be locked at different positions. The second rack can be pressed against the second pressure sensor under the driving of the second cylinder.
Preferably, a first angle indicating needle is fixed on a rotating shaft of the first mounting plate; the upper base is provided with a first angle scale mark; the circle center position corresponding to the first angle scale mark is on the rotating shaft axis of the first mounting plate. Under the state that first mounting panel is horizontal, first angle pointer point to the zero scale position of first angle scale mark.
Preferably, a second angle indicating needle is fixed on the rotating shaft of the second mounting plate; the lower base is provided with a second angle scale mark; the circle center corresponding to the second angle scale mark is positioned on the axis of the rotating shaft of the second mounting plate. And in the horizontal state of the second mounting plate, the second angle indicating needle points to the zero scale position of the second angle scale mark.
Preferably, the common axes of the first rotating pair and the second rotating pair are perpendicular to each other.
Preferably, the first mounting plate and the second mounting plate clamp a tested sample through detachable panels; the detachable panel can be replaced to clamp different tested samples.
Preferably, the sample to be tested comprises a wired plug and socket with a shell, a non-wired plug and socket with a shell, a wired plug and socket without a shell, a non-wired plug and socket without a shell, a shell of the plug and socket, a hinge frame in the plug and socket, and an insulator in the plug and socket.
Preferably, the horizontal positions of the tested sample on the first mounting plate and the second mounting plate can be adjusted so as to simulate the plugging and unplugging of the electric connection under the condition of displacement error.
Preferably, the mechanical life testing device with the adjustable insertion angle further comprises an upper clamp power module. The upper clamp power module is installed on the rack and used for driving the upper angle adjusting clamp module to move up and down. The upper clamp power module comprises a lifting driving element and a sliding frame. The sliding frame and the frame form a sliding pair. The sliding frame is driven by the lifting driving element to slide.
Preferably, a plugging force sensor is arranged between the upper clamp power module and the upper angle adjusting clamp module.
Preferably, the upper base and the sliding frame are in clearance fit sliding connection through the coarse positioning guide rod and the guide sleeve. The sliding frame is provided with an auxiliary fixture positioning mechanism for positioning the upper angle adjusting fixture module before the plug connectors are butted at each time.
Preferably, the fixture positioning auxiliary mechanism comprises a cylinder mounting panel, a clamping cylinder and a clamping claw. Two cylinder mounting panels that the level set up all fix on the carriage, and two cylinder mounting panels are located the left and right sides of upper base respectively. Two clamping cylinder fix respectively on two cylinder mounting panel, and the piston rod all faces the upper base. The end parts of the piston rods of the two clamping cylinders are fixed with clamping claws. When the two clamping cylinders are pushed out, the two clamping claws can clamp the edges on the two sides of the upper base.
Preferably, the unilateral gap between the coarse positioning guide rod and the corresponding guide sleeve is 0.5-1 mm.
Preferably, the mechanical life testing device with the adjustable insertion angle further comprises a lower clamp power module. The lower clamp power module is installed on the rack and used for driving the angle adjusting clamp module to move up and down. The lower clamp power module comprises a lifting base plate, a connecting rod, a crank and a driving motor; the lifting base plate is connected to the rack in a sliding mode in the vertical direction. The crank is rotationally connected to the frame and is driven to rotate by the driving motor. One end of the connecting rod is rotationally connected with the crank. The other end of the connecting rod is rotatably connected with the middle part of the bottom surface of the lifting base plate.
Preferably, a self-protection mechanism is arranged between the lower angle adjusting clamp module and the lower clamp power module. The self-protection mechanism comprises a guide post, a spring and a supporting plate. The top of many guide posts all is fixed with the backup pad, and the bottom all with lift base plate sliding connection. Each guide post is sleeved with a spring. The two ends of each spring respectively support the lifting base plate and the supporting plate. The lower angle adjusting clamp module is arranged on the supporting plate.
The working method of the mechanical life testing device with the adjustable insertion angle comprises the following specific steps:
the method comprises the following steps that firstly, an upper angle adjusting clamp module is positioned through a clamp positioning auxiliary mechanism, so that the upper angle adjusting clamp module is kept horizontal, a first inserting part of a tested connector is fixed on a first mounting plate, and meanwhile two inserting parts of the connector are inserted and combined.
And step two, the upper angle adjusting clamp module and the lower angle adjusting clamp module move relatively, so that a second inserting part of the connector is in contact with the second mounting plate, and the second inserting part is fixed on the second mounting plate.
Thirdly, the lower angle adjusting clamp module is reset downwards to drive the male end of the plug connector to be separated from the female end of the plug connector; adjusting a preset torque value M required by aligning the male end and the female end of the plug connector in the plugging process by adjusting the input air pressure of the first air cylinder and the second air cylinder; the positions of the first pressure sensor and the second pressure sensor are adjusted and locked, and the positions of the first pressure sensor and the second pressure sensor correspond to the inclination degree of the first mounting plate and the second mounting plate in the splicing process respectively, so that the male end of the plug connector and the female end of the plug connector form a required splicing angle.
And step four, the lower clamp power module 7 drives the angle adjusting clamp module 5 to perform reciprocating lifting motion, so that the male end and the female end of the plug connector perform repeated plugging motion. In the public end of plug connector and the female end of plug connector the motion process of pegging graft at every turn, public end of plug connector and the female end of plug connector all are under the effect of grafting power for the thrust of first cylinder and second cylinder is overcome respectively to first mounting panel and second mounting panel, returns to vertical state. Therefore, the process of aligning the male end and the female end of the plug connector in the manual plugging process is simulated. Meanwhile, the plugging force sensor continuously detects the magnitude of the plugging force of each plugging.
When the insertion force sensor detects the insertion force, the clamp positioning auxiliary mechanism is separated from the upper angle adjusting clamp module, so that the influence of the clamp positioning auxiliary mechanism on the detection of the insertion force is avoided; when the insertion force sensor detects that the insertion force disappears, the clamp positioning auxiliary mechanism positions the upper angle adjusting clamp module again, and the position of the upper angle adjusting clamp module is determined to be kept accurate.
Preferably, a preset torque value M which is required by the plug male end and the plug female end to return to the normal state in the plugging process is F · r; wherein, F is the pressure value measured by the corresponding pressure sensor, and r is the reference circle radius of the corresponding gear.
The invention has the beneficial effects that:
1. according to the invention, the plugging angle of the plug or the socket can be set independently according to requirements, and the plugging angle of the plug and the socket can also be set simultaneously, so that a multi-angle composite mechanical life test is formed, and the actual installation working condition of the connector is simulated to the maximum extent; after the test, the defects and the mechanical life limit of the product are identified in advance by observing the wear state of the connector, and powerful data support is provided for subsequent product improvement or guidance of an installer for product installation.
2. The invention can replace the mounting plate of the clamp module according to the requirement, test the mechanical life of inserting samples with or without angles of different combinations, can be an integral connector after crimping a cable, can also be an integral connector without crimping the cable, and can also verify the mechanical life of inserting parts of the connector with or without angles, such as: insulators, hinged frames, housings, and other connectors without housings, etc.
3. The invention can monitor the whole plugging force of the sample in real time through the plugging force sensor, can obtain the change trend of the whole plugging force of the connector under different plugging angles and different plugging times, can also calculate the abrasion area through the test sample to obtain the abrasion change trend of the sample, and provides powerful data support for product design and subsequent guidance of customers.
4. According to the invention, the air cylinder holding mechanism and the angle resetting force measuring sensor can be used for setting and measuring aligning force values under different angles, and simultaneously, the resistance required to be overcome in the insertion process is also used for simulating the force applied to a product by a person during installation with an angle under an actual working condition, so that the test condition is more severe, and the working condition is more practical.
5. According to the invention, a mechanical plugging life test under multiple working conditions can be carried out through the mounting plate of the replaceable clamp module, the mounting plate is provided with the threaded hole to be fixed with a sample to be tested, and the position of the sample to be tested can be adjusted through the position of the mounting hole, so that the device can also carry out mechanical plugging life with displacement, mechanical plugging life with displacement and angle and the like.
6. The invention can continuously monitor data by operating an intelligent system, simultaneously measure the mechanical life and the plugging force, avoid the processes of repeated disassembly, measurement and re-clamping, reduce the workload of designers and testers and greatly improve the efficiency.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a schematic front view of the present invention;
FIG. 3 is a schematic view of the assembly of the upper angle adjustment fixture module and the fixture positioning assist mechanism of the present invention;
FIG. 4 is a schematic front view of an upper angle adjustment fixture module of the present invention;
FIG. 5 is a schematic rear view of an upper angle adjustment fixture module of the present invention;
FIG. 6 is a combined elevation view of the lower angle adjustment clamp module, self-shielding mechanism, and lower clamp power module of the present invention.
Fig. 7 is a combined perspective view of the lower angle adjustment clamp module, the self-protection mechanism and the lower clamp power module in the present invention.
Fig. 8 is a schematic view showing the installation position of the second angle indicating pin in the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 and 2, the mechanical life testing device with the adjustable plugging angle comprises a touch screen industrial computer 1, an upper clamp power module 2, a plugging force sensor 3, an upper angle adjusting clamp module 4, a lower angle adjusting clamp module 5, a self-protection mechanism 6, a lower clamp power module 7, a rack 8 and a clamp positioning auxiliary mechanism 9. The lower clamp power module 7 and the upper clamp power module 2 are installed on the rack 8 and are arranged in an up-and-down opposite mode. The self-protection mechanism 6 is mounted on the lower clamp power module 7. The upper angle adjusting clamp module 4 and the clamp positioning auxiliary mechanism 9 are both installed on the upper clamp power module 2, and the lower angle adjusting clamp module 5 is installed on the self-protection mechanism 6. The upper angle adjusting clamp module 4 and the lower angle adjusting clamp module 5 are arranged opposite to each other. Four guide slide bars are vertically arranged on the frame 8. An upper clamp power module 2 is mounted on top of the frame and includes a lift drive member and a carriage 2-1. Four corners of the sliding frame 2-1 are respectively connected with the four guide sliding rods in a sliding manner. The lifting driving element adopts a screw motor, and the bottom end of a screw is fixed with the middle part of the sliding frame 2-1, so that the lifting driving of the sliding frame 2-1 is realized.
As shown in FIGS. 3 and 4, the upper angle adjustment clamp module 4 includes an upper base 4-1, a first aligning load cell assembly 4-2, and a first mounting plate 4-3. An inserting force sensor 3 is arranged between the upper base 4-1 and the sliding frame 2-1, so that the inserting force sensor 3 can measure the axial inserting force. The four corners at the top of the upper base 4-1 are vertically arranged on coarse positioning guide rods 4-4. Four guide sleeves are fixed on the sliding frame 2-1; the four guide sleeves are respectively sleeved on four coarse positioning guide rods 4-4; the coarse positioning guide rod 4-4 is provided with a limit position in the vertical direction, so that the upper base 4-1 is prevented from being too far away from the plugging force sensor 3; the guide sleeve is in clearance fit with the corresponding coarse positioning guide rod 4-4, so that when the sliding frame 2-1 is subjected to torque in the inserting process, large friction force cannot be generated between the sliding frame 2-1 and the coarse positioning guide rod 4-4, and accurate inserting force measured by the inserting force sensor 3 is guaranteed. The unilateral clearance between the guide sleeve and the corresponding coarse positioning guide rod 4-4 is 0.5 mm-1 mm.
The two sides of the first mounting plate 4-3 and the bottom of the upper base 4-1 form a first rotating pair with a common axis arranged horizontally. The first aligning force measuring component 4-2 comprises a first gear 4-2-1, a first rack 4-2-2, a first cylinder 4-2-3 and a first pressure sensor 4-2-4. The first gear 4-2-1 and the first mounting plate 4-3 are coaxially fixed. The first cylinder 4-2-3 is fixed on the upper base 4-1; the piston rod of the first cylinder 4-2-3 is vertically arranged and fixed with the first rack 4-2-2. The first gear 4-2-1 is engaged with the first rack 4-2-2. The first pressure sensor 4-2-4 is mounted on the upper base 4-1 with the sensing portion aligned with the end of the first rack 4-2-2. The mounting position of the first pressure sensor 4-2-4 can be adjusted in the vertical direction and can be locked in different positions, and the position adjustment is realized by matching a bolt and a vertical waist-shaped hole. When the first cylinder 4-2-3 is pushed out, the end of the first rack 4-2-2 abuts against the first pressure sensor 4-2-4. The first pressure sensor 4-2-4 can detect the thrust of the first cylinder 4-2-3 to the first rack 4-2-2; and further converts the torque required for the first mounting plate 4-3 to return to normal. By adjusting the vertical position of the first pressure sensor 4-2-4, the degree of tilt of the first mounting plate 4-3 can be adjusted.
As shown in fig. 5, a first angle indicator 4-5 is fixed on the rotating shaft of the first mounting plate 4-3; the upper base 4-1 is provided with a first angle scale mark 4-6; the circle center position corresponding to the first angle scale mark 4-6 is on the rotating shaft axis of the first mounting plate 4-3. In a state where the first mounting plate 4-3 is horizontal, the first angle indicating pin 4-5 points to a zero scale position of the first angle scale mark 4-6.
The first angle indicator pin 4-5 is used for indicating the inclination angle of the first mounting plate 4-3.
As shown in fig. 3, the fixture positioning auxiliary mechanism 9 is mounted on the sliding frame 2-1, and is used for positioning the upper angle adjusting fixture module 4 before each docking of the plug connectors, so as to ensure that the centers of the male terminals and the female terminals of the plug connectors on the first mounting plate 4-3 and the second mounting plate 5-2 are on the same vertical axis when the plug connectors are plugged. The fixture positioning auxiliary mechanism 9 comprises a cylinder mounting panel 9-1, a clamping cylinder 9-2 and a clamping claw 9-3. Two cylinder mounting panels 9-1 which are horizontally arranged are fixed on the sliding frame 2-1, and the two cylinder mounting panels 9-1 are respectively positioned at the left side and the right side of the upper base 4-1. The two clamping cylinders 9-2 are respectively fixed on the two cylinder mounting panels 9-1, and the piston rods face the upper base 4-1. The end parts of the piston rods of the two clamping cylinders 9-2 are fixed with clamping claws 9-3. When the two clamping cylinders 9-2 are pushed out, the two clamping claws 9-3 can clamp the edges of the two sides of the upper base 4-1, so that the upper base 4-1 is positioned and clamped.
As shown in fig. 6 and 7, the lower clamp power module 7 comprises a lifting base plate 7-1, a telescopic rod 7-2, a connecting rod 7-3, a crank 7-4 and a driving motor 7-5; four telescopic rods 7-2 which are arranged in a rectangular shape are all arranged on the table top of the frame 8. Four corners of the bottom surface of the lifting base plate 7-1 are respectively fixed with the telescopic rods of the four telescopic rod pieces 7-2; the crank 7-4 is in a disc shape; the crank 7-4 is rotatably connected under the table top of the frame and is driven to rotate by a driving motor 7-5 fixed under the table top. One end of the connecting rod 7-3 is rotatably connected with the eccentric position of the crank 7-4. The other end of the connecting rod 7-3 is rotatably connected with the middle part of the bottom surface of the lifting base plate 7-1. The driving motor 7-5 drives the crank 7-4 to rotate, so as to drive the lifting base plate 7-1 to move up and down. The self-protection mechanism 6 comprises a guide post, a spring 6-1 and a support plate 6-2. The top ends of the four guide posts are respectively fixed with four corners of the supporting plate 6-2, and the bottom ends of the four guide posts are all connected with the lifting base plate 7-1 in a sliding manner. Each guide post is sleeved with a spring 6-1. Two ends of each spring 6-1 respectively support against the lifting base plate 7-1 and the supporting plate 6-2. The self-protection mechanism 6 is used for providing a space for downward yielding for the lower angle adjusting clamp module 5 when the insertion force is too large, so that damage is avoided. The reason why the self-protection mechanism 6 is provided is that: after a certain number of mechanical lives, the pin hole part is worn, so that the plugging force is increased and the range of the sensor is exceeded, or when the connector is failed at the limit position, the equipment is protected and prevented from being damaged when the normal plugging is not realized.
As shown in FIG. 7, the lower angle adjustment clamp module 5 comprises a lower base 5-1, a second mounting plate 5-2 and a second aligning load cell assembly 5-3. Two lower bases 5-1 are respectively fixed at two ends of the top surface of the supporting plate 6-2. The second mounting plate 5-2 and the tops of the opposite side surfaces of the two lower bases 5-1 form a second rotating pair with a common axis arranged horizontally. The common axes of the first rotating pair and the second rotating pair are vertical to each other.
As shown in FIG. 7, the second aligning force-measuring unit 5-3 comprises a second gear 5-3-1, a second rack 5-3-2, a second cylinder 5-3-3 and a second pressure sensor 5-3-4. The second gear 5-3-1 and the second mounting plate 5-2 are coaxially fixed through rotating shafts. The second cylinder 5-3-3 is fixed on the lower base 5-1; the piston rod of the second cylinder 5-3-3 is vertically arranged and fixed with the second rack 5-3-2. The second gear 5-3-1 is engaged with the second rack 5-3-2. The second pressure sensor 5-3-4 is mounted on the lower base 5-1 with the sensing portion aligned with the end of the second rack 5-3-2. The mounting position of the second pressure sensor 5-3-4 can be adjusted in the vertical direction and can be locked in different positions, and the position adjustment is realized by matching a bolt and a vertical waist-shaped hole. When the second cylinder 5-3-3 is pushed out, the end part of the second rack 5-3-2 is propped against the second pressure sensor 5-3-4. The second pressure sensor 5-3-4 can detect the thrust of the second air cylinder 5-3-3 to the second rack 5-3-2; and further converts the torque required for the second mounting plate 5-2 to return to the normal position. The degree of inclination of the second mounting plate 5-2 can be adjusted by adjusting the vertical position of the second pressure sensor 5-3-4.
As shown in fig. 8, a second angle indicator 5-4 is fixed on the rotating shaft of the second mounting plate 5-2; the lower base 5-1 is provided with a second angle scale mark 5-5; the circle center position corresponding to the second angle scale mark 5-5 is on the rotating shaft axis of the second mounting plate 5-2. And in the state that the second mounting plate 5-2 is horizontal, the second angle indicating needle 5-4 points to the zero scale position of the second angle scale mark 5-5. The second angle indicating pin 5-4 is used for indicating the inclination angle of the second mounting plate 5-2.
The opposite side surfaces of the first mounting plate 4-3 and the second mounting plate 5-2 are provided with plug connector mounting holes, and the first mounting plate 4-3 and the second mounting plate 5-2 can be detached and replaced according to the structure of a sample to be tested. Therefore, the mechanical plugging and unplugging service life test under different tested samples under multiple working conditions can be carried out; the first mounting plate 4-3 and the second mounting plate 5-2 can be matched with the bolts through the mounting holes to adjust the position of the tested sample, so that the center of the tested sample can be out of the same vertical central line, and the mechanical plugging service life with displacement, the mechanical plugging service life with displacement and angle and the like can be carried out under the condition that the displacement error exists in the simulation electric connector.
The tested sample can be a plug and a socket after connection; the plug and the socket after wiring are arranged on the sample installation panel to be tested of the first installation plate 4-3 and the second installation plate 5-2, the cable is locked by the connector, the pin hole piece can deflect under the stress condition, the pin hole piece is more suitable for the practical application condition, and the performance of the connector after wiring can be accurately detected under the condition that the connector is inserted at an angle or is not inserted at an angle.
The tested sample can be a plug and a socket which are not connected with wires; the plug and the socket which are not connected are arranged on the sample mounting panel to be tested of the first mounting plate 4-3 and the second mounting plate 5-2, are not influenced by cables, and can accurately detect the performance of the connector under the condition of insertion at an angle or without the angle.
The tested sample can be a plug and a socket without a shell after connection; after wiring, the connector without the shell is mounted on the mounting panel of the sample to be tested of the first mounting plate 4-3 and the second mounting plate 5-2, the fixing screw can be a guide screw with a guide structure or a common screw without a guide structure, the fixing screw can be matched with a mounting frame for fixing, the cable is tied tightly by a cable tie, the pinhole piece can deflect under the condition of stress, the connector is more suitable for practical application, and the connector without the shell after wiring can be accurately detected to have the performance under the condition of angle insertion or angle insertion.
The tested sample can be an un-wired plug and a socket without a shell; the non-wired connector without the shell is characterized in that the non-wired connector without the shell plug and the non-wired socket are mounted on the to-be-tested sample mounting panel of the first mounting plate 4-3 and the second mounting plate 5-2, the fixing screws can be guide screws with guide structures or ordinary screws without guide structures, the fixing screws can be fixed by matching with mounting frames, the connector without the non-wired connector without the shell plug and the socket is not influenced by cables, and the performance of the non-wired connector without the shell plug and the socket under the condition of angle insertion or angle insertion can be accurately detected.
The tested sample can be a plug and a socket shell; the shell is directly arranged on the sample mounting panel to be tested of the first mounting plate 4-3 and the second mounting plate 5-2, and the shell is provided with a guide mechanism, so that the performance of the shell under the insertion with or without an angle can be accurately detected.
The tested sample can be a hinged frame in a plug and a socket; the hinged frame is directly arranged on the sample mounting panel to be tested of the first mounting plate 4-3 and the second mounting plate 5-2, and the fixing screws can be guide screws with guide structures or ordinary screws without guide structures according to actual use conditions; articulated frame itself still has guiding mechanism simultaneously, can accurate detection articulated frame take the angle or do not take the angle to insert the performance under closing.
The tested sample can be insulators in a plug and a socket; the insulator is directly arranged on the sample mounting panel to be tested of the first mounting plate 4-3 and the second mounting plate 5-2, and the fixing screw can be a guide screw with a guide structure or a common screw without a guide structure according to the actual use condition; meanwhile, the insulator is also provided with a guide mechanism, so that the performance of the insulator under the insertion with or without an angle can be accurately detected.
The inclination degree of the first mounting plate 4-3 and the second mounting plate 5-2 is adjusted, so that the insertion angles of the male ends and the female ends of the plug connectors which are arranged on the first mounting plate 4-3 and the second mounting plate 5-2 in different directions can be relatively formed. The touch screen industrial computer 1 is mounted on a rack 8. The signal lines of the insertion force sensor 3, the first pressure sensor 4-2-4 and the second pressure sensor 5-3-4 are all connected with the signal input interface of the touch screen industrial computer 1. The touch screen industrial computer 1 is used for collecting data of the insertion force sensor 3 and the angle resetting force measuring sensor 11 and performing arrangement and operation of other series of data.
The working method of the mechanical life testing device with the adjustable insertion angle comprises the following specific steps:
step one, adjusting the upper angle adjusting clamp module 4 to a proper position and fixing, pressurizing the clamping cylinder 9-2, accurately positioning the upper angle adjusting clamp module 4 without deflection, fixing the male end of the tested connector clip onto the first mounting plate 4-3, and simultaneously inserting the female end and the male end of the connector clip.
And step two, adjusting the lower angle adjusting clamp module 5 to slowly approach the upper angle adjusting clamp module 4, so that the second mounting plate 5-2 is superposed with the mounting surface at the other end of the plugged connector, and the female end of the connector is fixed with the second mounting plate 5-2.
Resetting the lower angle adjusting clamp module 5 to drive the male end of the plug connector to be separated from the female end of the plug connector; adjusting a preset torque value M required by aligning the male end and the female end of the plug connector in the plugging process by adjusting the input air pressure of the first air cylinder 4-2-3 and the second air cylinder 5-3-3, wherein the preset torque value M is equal to F.r; wherein, F is the pressure value measured by the corresponding pressure sensor, and r is the reference circle radius of the corresponding gear.
And fourthly, adjusting the positions of the first pressure sensor 4-2-4 and the second pressure sensor 5-3-4, locking, and inclining the male end and the female end of the plug connector at a mutually separated state by a first preset angle and a second preset angle around two mutually vertical horizontal lines.
Driven by a driving motor 7-5, a connecting rod 7-3 drives a lifting base plate 7-1 to vertically reciprocate under the constraint of a telescopic rod 7-2, so that the insertion and extraction actions of the male end and the female end of the connector are realized; in the process of each insertion movement of the male end and the female end of the plug connector, when the male end and the female end are just contacted, the insertion force sensor 3 detects the occurrence of a force value, the force value is fed back to the touch screen industrial computer 1 and controls the clamping cylinder 9-2 to release pressure, the clamping jaw 9-3 is separated from the contact with the upper base 4-1, and at the moment, the only stress point is positioned at the connecting part of the insertion force sensor 3 on the upper angle adjusting clamp module 4; in the process of each pulling-out motion of the male end and the female end of the plug connector, when the male end and the female end are just separated from contact, the force value detected by the plugging force sensor 3 disappears, the force value is fed back to the touch screen industrial computer 1 and controls the clamping cylinder 9-2 to be pressurized, and the clamping claws 9-3 are contacted with and clamped by the upper base 4-1;
in the process of each plugging movement of the male connector and the female connector, the male connector and the female connector both act under the plugging force, so that the first mounting plate 4-3 and the second mounting plate 5-2 overcome the thrust of the first cylinder 4-2-3 and the second cylinder 5-3-3 respectively and return to the vertical state. Therefore, the process of aligning the male end and the female end of the plug connector in the manual plugging process is simulated. Meanwhile, the plugging force sensor 3 continuously detects the magnitude of the plugging force of each plugging.
When the plugging force is larger than a preset limit plugging force value or the maximum plugging times is reached, the alarm sends out an alarm signal, and the test is finished. And the plug connector is considered to be damaged when the plugging force is larger than the preset limit plugging force value. Therefore, the performance test of the plug connector simulating the real plug-in condition is realized.
Claims (16)
1. A mechanical life testing device with an adjustable insertion angle comprises an upper angle adjusting clamp module (4), a lower angle adjusting clamp module (5) and a rack (8); the method is characterized in that: the upper angle adjusting clamp module (4) and the lower angle adjusting clamp module (5) are both arranged on the rack (8) and are arranged opposite to each other; the upper angle adjusting clamp module (4) and the lower angle adjusting clamp module (5) can move relatively to perform repeated plugging and unplugging of the male end and the female end of the plug connector;
the upper angle adjusting clamp module (4) comprises an upper base (4-1), a first aligning force measuring assembly (4-2) and a first mounting plate (4-3); the first mounting plate (4-3) and the bottom of the upper base (4-1) form a first rotating pair; the first aligning force measuring component (4-2) comprises a first gear (4-2-1), a first rack (4-2-2), a first air cylinder (4-2-3) and a first pressure sensor (4-2-4); the first gear (4-2-1) is fixed with the first mounting plate (4-3); the first cylinder (4-2-3) is fixed on the upper base (4-1); a piston rod of the first cylinder (4-2-3) is fixed with a first rack (4-2-2); the first gear (4-2-1) is meshed with the first rack (4-2-2); the first pressure sensor (4-2-4) is arranged on the upper base (4-1), and the detection part is aligned with the first rack (4-2-2); the mounting position of the first pressure sensor (4-2-4) can be adjusted along the sliding direction of the first rack (4-2-2) and can be locked at different positions; the first rack (4-2-2) can be pressed against the first pressure sensor (4-2-4) under the driving of the first cylinder (4-2-3);
the lower angle adjusting clamp module (5) comprises a lower base (5-1), a second mounting plate (5-2) and a second aligning force measuring assembly (5-3); the second mounting plate (5-2) and the lower base (5-1) form a second revolute pair; the second aligning force measuring assembly (5-3) comprises a second gear (5-3-1), a second rack (5-3-2), a second air cylinder (5-3-3) and a second pressure sensor (5-3-4); the second gear (5-3-1) and the second mounting plate (5-2) form a second revolute pair; the second cylinder (5-3-3) is fixed on the lower base (5-1); a piston rod of the second cylinder (5-3-3) is fixed with the second rack (5-3-2); the second gear (5-3-1) is meshed with the second rack (5-3-2); the second pressure sensor (5-3-4) is arranged on the lower base (5-1), and the detection part is aligned with the second rack (5-3-2); the mounting position of the second pressure sensor (5-3-4) can be adjusted along the sliding direction of the second rack (5-3-2) and can be locked at different positions; the second rack (5-3-2) can be pressed against the second pressure sensor (5-3-4) under the driving of the second cylinder (5-3-3).
2. The mechanical life testing device with adjustable plugging angle of claim 1, wherein: a first angle indicating needle (4-5) is fixed on a rotating shaft of the first mounting plate (4-3); the upper base (4-1) is provided with a first angle scale mark (4-6); the circle center corresponding to the first angle scale mark (4-6) is positioned on the rotating shaft axis of the first mounting plate (4-3); under the state that the first mounting plate (4-3) is horizontal, the first angle indicating needle (4-5) points to the zero scale position of the first angle scale mark (4-6).
3. The mechanical life testing device with adjustable plugging angle of claim 1, wherein: a second angle indicating needle (5-4) is fixed on the rotating shaft of the second mounting plate (5-2); the lower base (5-1) is provided with a second angle scale mark (5-5); the circle center corresponding to the second angle scale mark (5-5) is positioned on the rotating shaft axis of the second mounting plate (5-2); and in the state that the second mounting plate (5-2) is horizontal, the second angle indicating needle (5-4) points to the zero scale position of the second angle scale mark (5-5).
4. The mechanical life testing device with adjustable plugging angle of claim 1, wherein: the common axes of the first rotating pair and the second rotating pair are vertical to each other.
5. The mechanical life testing device with adjustable plugging angle of claim 1, wherein: the first mounting plate (4-3) and the second mounting plate (5-2) clamp a tested sample through detachable panels; the detachable panel can be replaced to clamp different tested samples.
6. The mechanical life testing device with the adjustable plugging angle as claimed in claim 5, wherein: the tested sample comprises a connected plug and a connected socket with a shell, a non-connected plug and a non-connected socket with a shell, a non-connected shell plug and a non-connected socket with a shell, a shell of the plug and the socket, a hinged frame in the plug and the socket, and insulators in the plug and the socket.
7. The mechanical life testing device with adjustable plugging angle of claim 1, wherein: the horizontal positions of the tested sample on the first mounting plate (4-3) and the second mounting plate (5-2) can be adjusted, so that plugging and unplugging of electric connection under the condition of displacement errors can be simulated.
8. The mechanical life testing device with adjustable plugging angle of claim 1, wherein: the clamp further comprises an upper clamp power module (2); the upper clamp power module (2) is arranged on the rack (8) and is used for driving the upper angle adjusting clamp module (4) to move up and down; the upper clamp power module (2) comprises a lifting driving element and a sliding frame (2-1); the sliding frame (2-1) and the frame (8) form a sliding pair; the sliding frame (2-1) is driven by the lifting driving element to slide.
9. The mechanical life testing device with adjustable plugging angle according to any one of claims 1-8, wherein: and an inserting force sensor (3) is arranged between the upper clamp power module (2) and the upper angle adjusting clamp module (4).
10. The mechanical life testing device with adjustable plugging angle of claim 9, wherein: the upper base (4-1) and the sliding frame (2-1) are in clearance fit sliding connection through a coarse positioning guide rod (4-4) and a guide sleeve; and the sliding frame (2-1) is provided with an auxiliary fixture positioning mechanism (9) for positioning the upper angle adjusting fixture module (4) before the plug connectors are butted each time.
11. The mechanical life testing device with adjustable plugging angle of claim 10, wherein: the fixture positioning auxiliary mechanism (9) comprises a cylinder mounting panel (9-1), a clamping cylinder (9-2) and a clamping jaw (9-3); two cylinder mounting panels (9-1) which are horizontally arranged are fixed on the sliding frame (2-1), and the two cylinder mounting panels (9-1) are respectively positioned at the left side and the right side of the upper base (4-1); the two clamping cylinders (9-2) are respectively fixed on the two cylinder mounting panels (9-1), and piston rods face the upper base (4-1); the end parts of piston rods of the two clamping cylinders (9-2) are fixed with clamping claws (9-3); when the two clamping cylinders (9-2) are pushed out, the two clamping claws (9-3) can clamp the two side edges of the upper base (4-1).
12. The mechanical life testing device with adjustable plugging angle of claim 10, wherein: the single-side gap between the coarse positioning guide rod (4-4) and the corresponding guide sleeve is 0.5-1 mm.
13. The mechanical life testing device with adjustable plugging angle of claim 1, wherein: the device also comprises a lower clamp power module (7); the lower clamp power module (7) is arranged on the rack (8) and is used for driving the lower angle adjusting clamp module (5) to move up and down; the lower clamp power module (7) comprises a lifting base plate (7-1), a connecting rod (7-3), a crank (7-4) and a driving motor (7-5); the lifting base plate (7-1) is connected to the rack (8) in a sliding manner along the vertical direction; the crank (7-4) is rotationally connected to the frame and is driven to rotate by the driving motor (7-5); one end of the connecting rod (7-3) is rotationally connected with the crank (7-4); the other end of the connecting rod (7-3) is rotatably connected with the middle part of the bottom surface of the lifting base plate (7-1).
14. The mechanical life testing device with adjustable plugging angle of claim 13, wherein: a self-protection mechanism (6) is arranged between the lower angle adjusting clamp module (5) and the lower clamp power module (7); the self-protection mechanism (6) comprises a guide post, a spring (6-1) and a support plate (6-2); the top ends of the guide columns are fixed with the support plate (6-2), and the bottom ends of the guide columns are in sliding connection with the lifting base plate (7-1); each guide post is sleeved with a spring (6-1); two ends of each spring (6-1) respectively abut against the lifting base plate (7-1) and the supporting plate (6-2); the lower angle adjusting clamp module (5) is arranged on the supporting plate (6-2).
15. The working method of the mechanical life testing device with the adjustable insertion angle as claimed in any one of claims 1 to 14, characterized in that: positioning an upper angle adjusting clamp module (4) through a clamp positioning auxiliary mechanism (9), keeping the upper angle adjusting clamp module (4) horizontal, fixing a first plugging part of a tested plug connector to a first mounting plate (4-3), and plugging two plugging parts of the plug connector;
secondly, the upper angle adjusting clamp module (4) and the lower angle adjusting clamp module (5) move relatively, and a second inserting part of the connector is fixed with a second mounting plate (5-2);
thirdly, the lower angle adjusting clamp module (5) is reset downwards to drive the male end and the female end of the plug connector to be separated; adjusting a preset torque value M required by aligning the male end and the female end of the plug connector in the plugging process by adjusting the input air pressure of the first air cylinder (4-2-3) and the second air cylinder (5-3-3); the positions of the first pressure sensor (4-2-4) and the second pressure sensor (5-3-4) are adjusted and locked, and the positions of the first pressure sensor (4-2-4) and the second pressure sensor (5-3-4) respectively correspond to the inclination degrees of the first mounting plate (4-3) and the second mounting plate (5-2) in the plugging process, so that the male end of the plug connector and the female end of the plug connector form a required plugging angle;
fourthly, the angle adjusting clamp module 5 performs reciprocating lifting motion, so that the male end of the plug connector and the female end of the plug connector perform repeated plugging motion; in the process of each plugging movement of the male end and the female end of the plug connector, the male end and the female end of the plug connector are both under the effect of plugging force, so that the first mounting plate (4-3) and the second mounting plate (5-2) overcome the thrust of the first cylinder (4-2-3) and the second cylinder (5-3-3) respectively, and the first mounting plate and the second mounting plate are rightly returned to a vertical state; thereby simulating the process of aligning the male end and the female end of the plug connector in the manual plugging process; meanwhile, the plugging force sensor (3) continuously detects the magnitude of the plugging force of each plugging;
when the insertion force sensor (3) detects the insertion force, the fixture positioning auxiliary mechanism (9) is separated from the upper angle adjusting fixture module (4), so that the influence of the fixture positioning auxiliary mechanism (9) on the detection of the insertion force is avoided; when the plugging force sensor (3) detects that the plugging force disappears, the clamp positioning auxiliary mechanism (9) positions the upper angle adjusting clamp module (4) again, and the position of the upper angle adjusting clamp module (4) is determined to be kept accurate.
16. The method of operation of claim 15, wherein: the method comprises the following steps that a preset torque value M which is required by aligning in the plugging process of the male end and the female end of the plug connector is equal to F.r; wherein, F is the pressure value measured by the corresponding pressure sensor, and r is the reference circle radius of the corresponding gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111641048.7A CN114216671A (en) | 2021-12-29 | 2021-12-29 | Mechanical life testing device with adjustable insertion angle and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111641048.7A CN114216671A (en) | 2021-12-29 | 2021-12-29 | Mechanical life testing device with adjustable insertion angle and working method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114216671A true CN114216671A (en) | 2022-03-22 |
Family
ID=80706778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111641048.7A Pending CN114216671A (en) | 2021-12-29 | 2021-12-29 | Mechanical life testing device with adjustable insertion angle and working method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114216671A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116557381A (en) * | 2023-05-12 | 2023-08-08 | 安徽派博肯机电科技有限公司 | Fault detection device based on hydraulic system |
| CN117948925A (en) * | 2024-03-21 | 2024-04-30 | 东莞市优为科精密电子科技有限公司 | Automatic testing device for connector |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007187569A (en) * | 2006-01-13 | 2007-07-26 | Toshiba Corp | Extendable member testing device, extendable member inspection device, extendable member test method, and extendable member inspection method |
| CN106769130A (en) * | 2016-11-30 | 2017-05-31 | 无锡明珠增压器制造有限公司 | The plug and pull out detector of drilling platforms spud leg |
| CN207318600U (en) * | 2017-09-08 | 2018-05-04 | 惠州市嘉和立方科技有限公司 | A kind of condenser type flexible touch button flex life detection device |
| CN208654295U (en) * | 2018-06-12 | 2019-03-26 | 深圳市星福龙科技有限公司 | A kind of full-automatic mobile power source burn-in test industrial equipment |
| CN209673070U (en) * | 2019-04-10 | 2019-11-22 | 安徽会合智能设备有限公司 | A kind of transmission that inclusiveness is strong gear transmission clearance measuring device |
| CN111203834A (en) * | 2020-03-16 | 2020-05-29 | 格力电器（石家庄）有限公司 | Coupler socket mechanical life detection device and method |
| CN111649928A (en) * | 2020-06-17 | 2020-09-11 | 无锡湖山智能科技有限公司 | Socket testing device for Beidou navigation chip |
-
2021
- 2021-12-29 CN CN202111641048.7A patent/CN114216671A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007187569A (en) * | 2006-01-13 | 2007-07-26 | Toshiba Corp | Extendable member testing device, extendable member inspection device, extendable member test method, and extendable member inspection method |
| CN106769130A (en) * | 2016-11-30 | 2017-05-31 | 无锡明珠增压器制造有限公司 | The plug and pull out detector of drilling platforms spud leg |
| CN207318600U (en) * | 2017-09-08 | 2018-05-04 | 惠州市嘉和立方科技有限公司 | A kind of condenser type flexible touch button flex life detection device |
| CN208654295U (en) * | 2018-06-12 | 2019-03-26 | 深圳市星福龙科技有限公司 | A kind of full-automatic mobile power source burn-in test industrial equipment |
| CN209673070U (en) * | 2019-04-10 | 2019-11-22 | 安徽会合智能设备有限公司 | A kind of transmission that inclusiveness is strong gear transmission clearance measuring device |
| CN111203834A (en) * | 2020-03-16 | 2020-05-29 | 格力电器（石家庄）有限公司 | Coupler socket mechanical life detection device and method |
| CN111649928A (en) * | 2020-06-17 | 2020-09-11 | 无锡湖山智能科技有限公司 | Socket testing device for Beidou navigation chip |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116557381A (en) * | 2023-05-12 | 2023-08-08 | 安徽派博肯机电科技有限公司 | Fault detection device based on hydraulic system |
| CN116557381B (en) * | 2023-05-12 | 2023-10-27 | 安徽派博肯机电科技有限公司 | Fault detection device based on hydraulic system |
| CN117948925A (en) * | 2024-03-21 | 2024-04-30 | 东莞市优为科精密电子科技有限公司 | Automatic testing device for connector |
| CN117948925B (en) * | 2024-03-21 | 2024-06-11 | 东莞市优为科精密电子科技有限公司 | Automatic testing device for connector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114216671A (en) | Mechanical life testing device with adjustable insertion angle and working method thereof | |
| CN201622210U (en) | Adjustable fretting fatigue tester | |
| JP5496421B2 (en) | Apparatus and test method for static characteristics of full load of bolt joint surface unit | |
| US11415557B2 (en) | Tempo-spatial evolution test system for rock breaking in deep and complex environment | |
| CN109186994A (en) | A kind of charging interface plug and pull out detector | |
| CN109520831A (en) | One kind being bolted slow test tooling, pilot system and application method | |
| CN209085910U (en) | A kind of charging interface plug and pull out detector | |
| CN107589031B (en) | Check-up draws and presses reaction frame | |
| CN109901312A (en) | A kind of display panel cell sections of detection device | |
| CN210269445U (en) | Multidimensional loading comprehensive test system | |
| CN111089783B (en) | Shearing box connecting device | |
| CN111006832A (en) | Universal clamp for circuit board of vibration test board and use method thereof | |
| CN219694776U (en) | Rock unipolar compressive strength automatic test device | |
| CN217689079U (en) | Off-line burning rack | |
| CN211627612U (en) | Power-on crimping mechanism and power-on crimping jig for panel | |
| CN219625682U (en) | High-efficient detection frame of voltage transformer test | |
| CN219495951U (en) | Device for testing constant voltage resistance of electronic product | |
| CN220671139U (en) | Tensile strength detection equipment convenient to clamp | |
| CN114719704B (en) | Three-way catalyst assembly examines a workstation | |
| CN113968357B (en) | Loading device and method for simulating pneumatic load of special-shaped cabin section | |
| CN221303466U (en) | Crimping type electric connection testing tool based on flexible probe | |
| CN116448585B (en) | Linear motor's testing arrangement | |
| CN220583649U (en) | Cylindrical cell bidirectional expansion force measuring device | |
| CN220231805U (en) | FCT detects tool convenient to quick installation is dismantled | |
| CN214151029U (en) | Calibration stand for electric energy meter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |