CN115290475A - Adjustable ball power ejection test device and test method - Google Patents
Adjustable ball power ejection test device and test method Download PDFInfo
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- CN115290475A CN115290475A CN202210025466.1A CN202210025466A CN115290475A CN 115290475 A CN115290475 A CN 115290475A CN 202210025466 A CN202210025466 A CN 202210025466A CN 115290475 A CN115290475 A CN 115290475A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/317—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated by electromagnetic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
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Abstract
The invention discloses an adjustable ball power ejection test device and a test method, wherein the ejection test device comprises an ejection cylinder, a spring compression device, a power control device, a power output shaft and a ball; a base frame is connected below the ejection cylinder to form a reliable and stable support system; the spring compression device takes a spring as a power source, and utilizes the compression spring to generate strong elastic force to realize ejection of the ball body; the power output shaft is controlled by the power control device to realize the triggering of the spring compression device; the ejection speed of the ball body is controlled by the compression amount of the spring, the operation is simple and convenient, the control of the elastic force is convenient, and the clamping grooves with the dial scales are formed in the two sides of the ejection cylinder, so that the compression amount of the spring is conveniently and accurately determined; the ejection device is not limited by position and direction, can simulate impact in any direction, meets various sphere power ejection tests, and has wide application range.
Description
Technical Field
The invention relates to an impact test device, in particular to an adjustable ball power ejection test device and a test method.
Background
In the existing ball impact test, researchers mostly start from the perspective of converting gravitational potential energy into kinetic energy. If the ball body is lifted to the air by the mechanical claw, the impact purpose is realized by the free falling motion of the ball body. However, this method can only achieve vertical impact, and requires a large space for operation, which is highly dangerous. For example, in the inclined plane impact test, the impact is realized by utilizing the kinetic energy generated by rolling the ball from the front end of the chute. However, the device has the advantages of small impact range, single impact position, heavy weight and low test precision. Researchers also propose electromagnetic ejection devices, such as the ejection of a sphere by using the principle of an electromagnetic rail gun. But the electromagnetic ejection is mostly used for military industry at present, and the operation technology of the electromagnetic ejection is strong in requirement and high in cost. Therefore, developing a device which has low cost and simple device and can realize the ejection test of the ball body in each direction is one of the problems to be solved urgently by researchers.
Disclosure of Invention
In order to solve the technical defects in the prior art, the invention aims to provide an adjustable ball power ejection test device and an adjustable ball power ejection test method, which can be used for researching ball ejection processes of different ejection positions, angles and speeds.
In order to achieve the purpose, the invention adopts the following scheme:
an adjustable ball power ejection test device: the ejection mechanism comprises an ejection cylinder, a spring compression device, a power control device, a power output shaft and a ball body;
the ejection cylinder is horizontally arranged, a base frame is arranged below the ejection cylinder, clamping grooves with dials are formed in the two sides of the ejection cylinder along the axial direction, a flange plate is connected to the rear end of the ejection cylinder, the rear end of a spring sleeve arranged in the ejection cylinder is fixedly connected with the flange plate, and an arc-shaped connecting sheet capable of sliding along the radial direction of the ejection cylinder is tightly attached to the outer wall of the ejection cylinder;
the spring compression device comprises a threaded rod and a spring, the spring is arranged in a spring sleeve, the threaded rod penetrates through the flange plate and the spring and extends into the ejection cylinder to be capable of freely moving front and back of the ejection cylinder, a nut and a bearing are assembled on one side of the threaded rod, which is positioned behind the flange plate, the front end of the threaded rod, which extends into the ejection cylinder, is connected with the circular baffle through threads, and the ball body is arranged in the ejection cylinder and clings to the circular baffle; clamping steel rods are arranged on two sides of the circular baffle plate, the clamping steel rods on the two sides are respectively arranged in clamping grooves on two sides of the ejection cylinder, and the front end of the spring is free, and the rear end of the spring is fixedly connected with the circular baffle plate;
the power control device is installed on one side of the ejection barrel through a bracket seat, a track arranged along the axial direction is arranged above the ejection barrel, one end of a power output shaft installed on the track is connected with the power control device, the other end of the power output shaft is connected with the arc-shaped connecting sheet, and the arc-shaped connecting sheet is driven by the power control device through the power output shaft to slide along the outer wall of the ejection barrel;
the ejection cylinder both sides draw-in groove all is equipped with the card hole, and same card hole is seted up to arc connection piece tip, and the card hole on the draw-in groove is used for spacing circular baffle both sides screens steel pole, and arc connection piece tip card hole is arranged in pulling out circular baffle both sides screens steel pole from the card hole of draw-in groove.
Further, power control device includes booster compressor and air compressor machine, and the booster compressor passes through the trachea and connects in the air compressor machine, and control switch one end is passed through the trachea and is connected in the booster compressor, and one end is passed through the trachea and is connected in the cylinder, the piston rod and the power output shaft of cylinder.
Furthermore, a bearing and a gasket are arranged on the threaded rod and are positioned between the flange plate and the nut.
Furthermore, a nut and a buckle are welded inside the circular baffle plate, the nut is connected with the threaded rod, and the buckle fixes the front end of the spring in the circular baffle plate.
Furthermore, the distance between the rear end of the clamping groove and the flange plate is not more than 50 percent of the length of the spring, and the distance between the front end of the clamping groove and the outlet of the front end of the ejection cylinder is 5-10 mm.
Furthermore, the clamping groove is provided with a semicircular clamping hole, the diameter of the clamping hole is 2mm-10mm larger than that of the clamping steel rod, one side of the clamping hole is arranged at the upper part of the clamping groove, and the other side of the clamping hole is arranged at the lower part of the clamping groove.
Further, the spring sleeve length is no greater than 50% of the spring length.
Furthermore, the clamping steel rod is a high-strength screw rod with the diameter of 10mm-20mm, screw holes are formed in two sides of the circular baffle, and the screw holes are matched with the clamping steel rod.
Furthermore, the ejection cylinder and the spring sleeve are coaxially arranged, and the rear end of the spring sleeve is fixedly connected with the spring sleeve through a flange plate.
An adjustable sphere power ejection test method comprises the following test steps:
a) Determining the compression amount of the spring:
calculating the ejection speed of the ball according to the formula (1-1) and the formula (1-2) to further obtain the compression amount of the spring;
in the formula: k is the spring stiffness with the unit of N/mm; x is the compression amount of the spring and the unit is mm; m is the mass of the sphere in kg; v is the sphere velocity in m/s; d is the diameter of the spring and the unit is mm; d is the diameter of the spring wire and the unit is mm; n is the effective number of turns of the spring; g is sphere gravity, i.e. G = mg.
b) After the compression amount of the spring is determined, the nut on the threaded rod is rotated in the positive direction to drive the circular baffle plate to compress the spring to a required position; clamping the clamping steel rods on the two sides of the circular baffle by using the arc-shaped connecting sheet, opening the power control device to enable the arc-shaped connecting sheet to clamp the clamping steel rods into the clamping holes, and putting the ball body into the ejection cylinder;
c) Rotating the threaded rod reversely to separate the threaded rod from the circular baffle;
d) The power control device pulls the arc-shaped connecting sheet back, the clamping steel rod is pulled out of the clamping hole, the elastic potential energy of the spring is instantly converted into kinetic energy to pop out the circular baffle, the circular baffle drives the ball body to pop out the ball body from the ejection cylinder, and the test is finished.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention comprises a shooting cylinder, a spring compression device, a power control device, a power output shaft and a ball body, wherein a base frame is connected below the shooting cylinder to form a reliable and stable supporting system; the spring compression device takes a spring as a power source, and utilizes the compression spring to generate strong elastic force to realize ejection of the ball body; the power output shaft is controlled by the power control device to realize the triggering of the spring compression device; the ejection speed of the ball body is controlled by the compression amount of the spring, the operation is simple and convenient, the control of the elastic force is convenient, and the clamping grooves with the dial scales are formed in the two sides of the ejection cylinder, so that the compression amount of the spring is conveniently and accurately determined; the ejection device is not limited by position and direction, can simulate impact in any direction, meets various sphere power ejection tests, and has wide application range.
2. The power control device realizes the triggering of the spring compression device through the air compressor and the booster cylinder, and has stable and reliable operation, safety and high efficiency.
3. The bearing is ingeniously arranged between the flange plate and the nut, so that the friction force between the flange plate and the nut is greatly reduced, the friction between the nut and the flange plate is reduced when the threaded rod is separated from the circular baffle plate and the nut is screwed, and the operation is labor-saving and convenient.
4. The lower part of the ejection cylinder is connected with the base frame to form a reliable and stable supporting system; all parts in the test device can be detached or connected, so that the test device is convenient to replace and repair during testing.
Drawings
FIG. 1 is a schematic three-dimensional structure diagram of a ball ejection test device according to the present invention
FIG. 2 is a schematic view of the track of FIG. 1
FIG. 3 is a schematic view of the structure of the ejection cylinder in FIG. 1
FIG. 4 is a schematic view of the connection between the threaded rod and the spring sleeve and the spring in FIG. 1
FIG. 5 is a schematic view of the circular baffle of FIG. 1
FIG. 6 is a schematic view of the power take-off shaft of FIG. 1
In the figure: 1-supercharger, 2-air pipe, 3-threaded rod, 4-flange plate, 5-control switch, 6-air cylinder, 7-ejection cylinder, 8-base frame, 9-track, 10-piston rod, 11-nut, 12-gasket, 13-support base, 14-power output shaft, 15-arc connecting sheet, 16-clamping steel rod, 17-spring, 18-circular baffle, 19-sphere, 20-bearing, 21-track fixing sheet, 22-bolt, 23-spring sleeve, 24-air compressor, 25-clamping hole, 26-clamping groove and 27-clamping buckle.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the ball power ejection test device of the present invention includes an ejection cylinder 7, a spring compression device, a power control device, a power output shaft 14 and a ball 19.
As shown in fig. 1 and 3, a base frame 8 is arranged below the ejection cylinder 7, clamping grooves 26 with dials are formed in two sides of the ejection cylinder, a spring sleeve 23 is arranged in the ejection cylinder, a rail 9 is arranged above the ejection cylinder, and an arc-shaped connecting sheet 15 is tightly attached to the outer wall of the ejection cylinder 7.
As shown in fig. 1, 4 and 5, the spring compression device comprises a threaded rod 3 and a spring 17, the flange plate 4 is connected to the rear end of the ejection cylinder 7, the spring 17 is arranged in a spring sleeve 23, the threaded rod 3 penetrates through the flange plate 4 and the spring 17 and extends into the ejection cylinder 7, a bearing 20 and a nut 11 are arranged on the threaded rod 3, the bearing 20 reduces friction force generated by the flange plate 4 and the nut 11, and a circular baffle 18 is arranged at the front end of the threaded rod 3; the round baffle 18 both sides are equipped with screens steel pole 16, and round baffle 18 is inside to have welded nut 11 and buckle 27, and nut 11 is connected with threaded rod 3, and buckle 27 realizes the compression of spring 17 through threaded rod 3 and round baffle 18 with spring 17 front end fixed in round baffle 18.
As shown in fig. 1, the power control device includes a supercharger 1, an air compressor 24, an air pipe 2, a control switch 5, a cylinder 6 and a piston rod 10, the air compressor 24 generates thrust by sucking and compressing air, the supercharger 1 is connected to the air compressor 24 through the air pipe 2 and increases the thrust generated by the air compressor 24, one end of the control switch 5 is connected to the supercharger 1 through the air pipe 2, one end of the control switch is connected to the cylinder 6 through the air pipe 2, and the cylinder 6 is connected to the flange plate 4 through a bracket base 13 and pushes the piston rod 10 to move by using the thrust generated by the air compressor 24.
As shown in fig. 1, 2 and 6, the power take-off shaft 14 is fixed to the rail 9 by a bolt 22, and has one end connected to the piston rod 10 and one end connected to the arc-shaped connecting piece 15.
As shown in figures 3 and 4, the inner diameter of the ejection cylinder 7 is matched with the diameter of the ball 19, no larger gap is formed between the inner diameter of the ejection cylinder and the ball 9, and the thickness of the ejection cylinder 7 is 5mm-20mm.
As shown in fig. 3 and 5, the width of the slot 26 formed on both sides of the ejection cylinder 7 should be larger than the diameter of the locking steel rod 16 by 10mm to 20mm, the distance from the rear end of the slot 26 to the flange 4 should not be larger than the length of the spring 17 by 50%, the distance from the front end to the outlet of the ejection cylinder 7 by 5mm to 10mm, the slot 26 is provided with a semicircular locking hole 25, the diameter of the locking hole 25 should be larger than the diameter of the locking steel rod 16 by 2mm to 10mm, one side of the locking hole 25 is arranged on the upper portion of the slot 26, and the other side thereof is arranged on the lower portion of the slot 26.
As shown in FIG. 4, the rear end of the spring sleeve 23 is connected to the flange 4, and the length of the spring sleeve 23 is set according to the compression amount of the spring 17 and cannot be larger than 50% of the length of the spring 17.
As shown in fig. 1 and 2, the rail 9 is welded to the upper portion of the shooting pot 7, the rail 9 is U-shaped, and a sliding groove is formed in the middle of the rail 9 to allow the power output shaft 14 to move.
The clamping steel rod 16 is a high-strength screw rod with the diameter of 10mm-20mm.
The thread of the threaded rod 3 is matched with the nut 11, and the diameter of the threaded rod 3 is 20mm-40mm.
Screw holes are formed in two sides of the circular baffle 18 and are matched with the clamping steel rod 16, so that the clamping steel rod 16 can be conveniently detached;
the end of the power output shaft 14 connected with the piston rod 10 is larger than the end connected with the arc connecting piece 15 to achieve the effect of a power arm and a resistance arm, the end of the arc connecting piece 15 is provided with a clamping hole 25, and the size of the clamping hole 25 is consistent with that of the clamping hole 25 opened by the clamping groove 26.
The invention also provides a construction method of the sphere dynamic ejection test device, which comprises the following test steps:
1. the prefabricated part: the ejection barrel 7, the threaded rod 3, the circular baffle 18, the power output shaft 14, the bracket base 13, the control switch 5, the clamping lever 16, the ball 19 and the spring sleeve 23 are processed in advance;
2. assembling a testing device: after the spring sleeve 23 and the flange plate 4 are assembled, the spring sleeve penetrates into the ejection cylinder 7 and is fixed with the flange plate 4 through bolts, and the threaded rod 3 penetrates into the ejection cylinder 7 and the spring sleeve 23 through the flange plate 4. The spring 17 and the circular baffle 18 are assembled by the buckle 27 and then placed in the shooting pot 7. The threaded rod 3 is connected with the circular baffle 18 through the nut 11, and the gasket 12, the bearing 20, the gasket 12 and the nut 11 are sleeved on the tail part of the threaded rod 3 in sequence. The power output shaft 14 is connected with an arc-shaped connecting sheet 15 on the ejection cylinder 7, and one end of the power output shaft 14 is connected with the track 9 and the other end is connected with the piston rod 10. Support seat 13 is connected on ring flange 4, fixes cylinder 6 and control switch 5 again on support seat 13, and cylinder 6 is connected to 2 one ends of trachea, and booster compressor 1 is connected to one end, and air compressor machine 24 is connected through trachea 2 with booster compressor 1.
3. The test was started:
a determines the amount of compression of the spring 17: the device converts spring potential energy into sphere kinetic energy to launch a sphere 19, calculates the sphere ejection speed according to a formula (1-1) and a formula (1-2), and further obtains the spring compression amount;
in the formula: k is the spring stiffness with the unit of N/mm; x is the spring compression, and the unit is mm; m is the mass of the sphere in kg; v is the sphere velocity in m/s; d is the diameter of the spring and the unit is mm; d is the diameter of the spring wire and the unit is mm; n is the effective number of turns of the spring; g is sphere gravity, i.e. G = mg.
b, after the compression amount of the spring is determined, the nut 11 on the threaded rod 3 is rotated in the positive direction, and the circular baffle 18 is driven to compress the spring 17 to a required position. The clamping steel rods 16 at the two sides of the circular baffle 18 are clamped by the arc-shaped connecting sheet 15. The air compressor 24 and the supercharger 1 are started, the control switch 5 is rotated in the forward direction to clamp the clamping steel rod 16 into the clamping hole 25, and the ball 19 is placed into the ejection cylinder 7.
c rotating the threaded rod 3 in the opposite direction to disengage the threaded rod 3 from the nut 11 in the circular baffle 18.
d, pulling the clamping steel rod 16 out of the clamping hole 25 after the control switch 5 is rotated reversely. At this point, the threaded rod 3 is disengaged from the circular stop 18. The huge elastic potential energy is instantly converted into kinetic energy to eject the circular baffle 18, and the circular baffle 18 drives the ball 19 to eject from the ejection barrel 7. The round baffle 18 is prevented from ejecting from the shooting pot because the clamping steel rod 16 is in the clamping groove 26. The test is now complete.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides a spheroid power ejection test device that can regulate and control which characterized in that: comprises a shooting cylinder (7), a spring compression device, a power control device, a power output shaft (14) and a sphere (19);
the ejection cylinder (7) is horizontally arranged, a base frame (8) is installed below the ejection cylinder (7), clamping grooves (26) with dials are formed in the two sides of the ejection cylinder (7) along the axial direction, a flange plate (4) is connected to the rear end of the ejection cylinder (7), the rear end of a spring sleeve (23) arranged inside the ejection cylinder (7) is fixedly connected with the flange plate (4), and an arc-shaped connecting sheet (15) capable of sliding along the radial direction of the outer wall of the ejection cylinder (7) is tightly attached to the outer wall of the ejection cylinder;
the spring compression device comprises a threaded rod (3) and a spring (17), the spring (17) is arranged in a spring sleeve (23), the threaded rod (3) penetrates through a flange plate (4) and the spring (17) and extends into the ejection barrel (7) to be capable of freely moving front and back of the ejection barrel (7), a nut (11) and a bearing (20) are assembled on one side of the threaded rod (3) behind the flange plate (4), the front end of the threaded rod (3) extending into the ejection barrel (7) is connected with a circular baffle (18) through threads, and a sphere (19) is arranged in the ejection barrel (7) and clings to the circular baffle (18); clamping steel rods (16) are arranged on two sides of the circular baffle (18), the clamping steel rods (16) on the two sides are respectively arranged in clamping grooves (26) on two sides of the ejection cylinder (7), and the front end of the spring (17) is free, and the rear end of the spring is fixedly connected with the circular baffle (18);
the power control device is installed on one side of the ejection cylinder (7) through a support seat (13), a rail (9) arranged along the axial direction is arranged above the ejection cylinder (7), one end of a power output shaft (14) installed on the rail (9) is connected with the power control device, the other end of the power output shaft is connected with an arc-shaped connecting sheet (15), and the arc-shaped connecting sheet (15) is driven by the power control device through the power output shaft (14) to slide along the outer wall of the ejection cylinder (7);
a section of thick bamboo (7) both sides draw-in groove (26) all are equipped with card hole (25), and same card hole (25) are seted up to arc connection piece (15) tip, and card hole (25) on draw-in groove (26) are used for spacing circular baffle (18) both sides screens steel pole (16), and arc connection piece (15) tip card hole (25) are arranged in pulling out circular baffle (18) both sides screens steel pole (16) from card hole (25) of draw-in groove (26).
2. The adjustable ball dynamic ejection test device of claim 1, wherein: power control device includes booster compressor (1) and air compressor machine (24), and booster compressor (1) is connected in air compressor machine (24) through trachea (2), and control switch (5) one end is passed through trachea (2) and is connected in booster compressor (1), and trachea (2) are passed through to one end and are connected in cylinder (6), and piston rod (10) and power output shaft (14) of cylinder (6) are connected.
3. The adjustable ball dynamic ejection test device of claim 1, wherein: and a bearing (20) and a gasket (12) are arranged on the threaded rod (3), and the bearing (20) and the gasket (12) are positioned between the flange plate (4) and the nut (11).
4. A regulated ball dynamic ejection test apparatus as claimed in claim 1, 2 or 3, wherein: a nut (11) and a buckle (27) are welded inside the circular baffle (18), the nut (11) is connected with the threaded rod (3), and the buckle (27) fixes the front end of the spring (17) in the circular baffle (18).
5. The adjustable sphere dynamic ejection test device of claim 4, wherein: the distance between the rear end of the clamping groove (26) and the flange plate (4) is not more than 50% of the length of the spring (17), and the distance between the front end of the clamping groove (26) and the outlet of the front end of the ejection cylinder (7) is 5-10 mm.
6. The adjustable sphere dynamic ejection test device of claim 4, wherein: the clamping groove (26) is provided with a semicircular clamping hole (25), the diameter of the clamping hole (25) is 2mm-10mm larger than that of the clamping steel rod (16), one side of the clamping hole (25) is arranged at the upper part of the clamping groove (26), and the other side of the clamping hole is arranged at the lower part of the clamping groove (26).
7. The adjustable sphere dynamic ejection test device of claim 4, wherein: the length of the spring sleeve (23) is not more than 50% of the length of the spring (17).
8. The adjustable sphere dynamic ejection test device of claim 4, wherein: the clamping steel rod (16) is a high-strength screw rod with the diameter of 10mm-20mm, screw holes are formed in two sides of the circular baffle (18), and the screw holes are matched with the clamping steel rod (16).
9. The adjustable sphere dynamic ejection test device of claim 4, wherein: the ejection cylinder (7) and the spring sleeve (23) are coaxially arranged, and the rear end of the spring sleeve (23) is fixedly connected with the flange plate (4) through the flange plate.
10. An adjustable ball power ejection test method based on the ejection test device of claim 1, which is characterized by comprising the following test steps:
a) Determining the compression amount of the spring:
calculating the ejection speed of the ball according to the formula (1-1) and the formula (1-2) to further obtain the compression amount of the spring;
in the formula: k is the spring stiffness with the unit of N/mm; x is the compression amount of the spring and the unit is mm; m is the mass of the sphere in kg; v is the sphere velocity in m/s; d is the diameter of the spring and the unit is mm; d is the diameter of the spring wire and the unit is mm; n is the effective number of turns of the spring; is sphere gravity, i.e., G = mg;
b) After the compression amount of the spring is determined, the nut (11) on the threaded rod (3) is rotated in the positive direction to drive the circular baffle (18) to compress the spring (17) to a required position; clamping steel clamping rods (16) on two sides of the circular baffle (18) are clamped by using the arc-shaped connecting sheet (15), the power control device is started, so that the arc-shaped connecting sheet (15) clamps the clamping steel clamping rods (16) into the clamping holes (25), and the ball body (19) is placed into the ejection cylinder (7);
c) The threaded rod (3) is rotated reversely to separate the threaded rod (3) from the circular baffle (18);
d) The power control device pulls the arc-shaped connecting sheet (15) back, the clamping steel rod (16) is pulled out of the clamping hole (25), the elastic potential energy of the spring (17) is instantly converted into kinetic energy to pop the circular baffle (18) out, the circular baffle (18) drives the ball body (19) to pop the ball body out of the ejection cylinder (7), and the test is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210025466.1A CN115290475A (en) | 2022-01-11 | 2022-01-11 | Adjustable ball power ejection test device and test method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210025466.1A CN115290475A (en) | 2022-01-11 | 2022-01-11 | Adjustable ball power ejection test device and test method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118010288A (en) * | 2024-04-09 | 2024-05-10 | 华羿微电子股份有限公司 | Intensity testing device and method for plastic package body of semiconductor device |
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2022
- 2022-01-11 CN CN202210025466.1A patent/CN115290475A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118010288A (en) * | 2024-04-09 | 2024-05-10 | 华羿微电子股份有限公司 | Intensity testing device and method for plastic package body of semiconductor device |
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