CN115184791A - Press key test aircraft nose and testing arrangement - Google Patents
Press key test aircraft nose and testing arrangement Download PDFInfo
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- CN115184791A CN115184791A CN202210897417.7A CN202210897417A CN115184791A CN 115184791 A CN115184791 A CN 115184791A CN 202210897417 A CN202210897417 A CN 202210897417A CN 115184791 A CN115184791 A CN 115184791A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
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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
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
Abstract
The invention discloses a press key testing machine head and a testing device, which are technically characterized in that the testing machine head comprises a linear voice coil motor, an elastic piece, a machine head fixing seat and a touch pressure head, wherein the output end of the linear voice coil motor faces downwards and is fixedly connected with the machine head fixing seat; the top end of the elastic piece supports against the linear voice coil motor, and the bottom end of the elastic piece supports against the machine head fixing seat. According to the invention, the contact between the contact pressure head and the pressing key has certain elasticity through the structure of the linear voice coil motor, so that overload protection is realized conveniently. In addition, when the power is off, the touch head is far away from the pressed key by virtue of the elasticity of the elastic piece, so that the touch head is prevented from being pressed on the pressed key for a long time.
Description
Technical Field
The invention relates to the field of key pressing tests, in particular to a key pressing test machine head and a key pressing test device.
Background
With the continuous improvement of the living standard of people, the technology in the field of electronic products enters a rapid development stage, and electronic products are more and more common in the life and work of people, which puts higher requirements on the processing efficiency and the qualification rate of electronic product manufacturers. Electronic product manufacturers have been developing and optimizing product function testing equipment while improving the efficiency of electronic product manufacturing processes. The use of key presses on electronic products is extremely frequent. In order to determine that the pressed key can work normally, the pressed key needs to be detected before the electronic product leaves a factory.
At present, a common key pressing test device is pressed and contacted on a key pressing through a cylinder direct drive detection mechanism. Because the extension length of a piston rod of the air cylinder is difficult to accurately control, a detection mechanism easily collides the pressed key with great force under the driving of the air cylinder in the detection process, so that the pressed key is damaged due to overlarge stress. In addition, in the detection process, once the cylinder is powered off, the piston rod of the cylinder cannot be successfully retracted, the detection mechanism can be always pressed on the pressing key of a product, and the pressing key is easily damaged.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a press key testing machine head and a testing device, which can effectively prevent the press key from being damaged due to overlarge stress and avoid the possibility that the press head presses the press key for a long time when the testing machine head is powered off.
In order to realize the purpose, the invention provides the following technical scheme: a press key test machine head comprises a linear voice coil motor, an elastic piece, a machine head fixing seat and a touch pressure head, wherein the output end face of the linear voice coil motor faces downwards and is fixedly connected with the machine head fixing seat; the elastic piece is located linear voice coil motor below, and its top supports tight linear voice coil motor's output end face, and tight aircraft nose fixing base is supported to the bottom.
Through adopting above-mentioned technical scheme, linear voice coil motor drives the pressure head and goes up and down, and linear voice coil motor's structure makes the pressure head and presses the contact between the key to have certain elasticity to in realize overload protection, prevent to press the key because of the too big damage of atress. In addition, when the power is off, the touch head can be far away from the pressed key by virtue of the elasticity of the elastic piece, so that the touch head is prevented from being pressed on the pressed key for a long time, and the pressed key is protected.
The invention is further configured to: the testing machine head further comprises a pressure sensor, the pressure sensor is located between the linear voice coil motor and the contact pressure head, and the linear voice coil motor and the contact pressure head are fixedly connected with the pressure sensor.
Through adopting above-mentioned technical scheme, touch the pressure head and press when touching on pressing the key, pressure sensor can gather and touch the pressure value that the pressure head applyed to pressing the key to whether analysis pressure value reaches the design requirement. Meanwhile, the pressure sensor can realize an overvoltage protection function, when the pressure value detected by the pressure sensor is greater than a set value, the current of the direct-current voice coil driving motor can be reduced, and the pressure applied to the pressed key by the cylindrical coil through the contact pressure head is reduced, so that the pressed key is prevented from being damaged by pressure.
The invention is further configured to: the head fixing seat comprises a motor connecting plate and a pressure head limiting plate, the linear voice coil motor is fixedly connected with the motor connecting plate, the pressure head limiting plate is located below the linear voice coil motor, a guide through hole is formed in the pressure head limiting plate, and the pressure head is inserted into the guide through hole and can slide up and down.
Through adopting above-mentioned technical scheme, the position that touches the pressure head can supplementary injecing by the direction through-hole to touch the pressure head and accurately press and touch on pressing the key.
The invention is further configured to: the test machine head further comprises a first guide rail assembly, the first guide rail assembly comprises a fixed rail and a sliding rail, the fixed rail is fixedly connected with the machine head fixing seat, the sliding rail is slidably connected with the fixed rail, the sliding direction of the sliding rail is parallel to the output direction of the linear voice coil motor, and the contact pressure head is fixedly connected with the sliding rail.
Through adopting above-mentioned technical scheme, linear voice coil motor prescribes a limit to the slip direction that touches the pressure head can be assisted to first guide rail set spare.
A press key testing device comprises a product positioning module, a lifting module and the testing machine head. The product location module is used for injecing the electronic product position, and the setting of test aircraft nose is in product location module top, aircraft nose fixing base and lift module fixed connection, and lift module is used for driving the aircraft nose fixing base and reciprocates.
The invention is further configured to: the gantry type automatic positioning device is characterized by further comprising a plurality of portal frame modules, wherein all the product positioning modules are horizontally and linearly arranged; the lifting module is installed on the portal frame module and can slide on the portal frame module along the arrangement direction of the product positioning module.
Through adopting above-mentioned technical scheme, when pressing the key test to the electronic product on a product location module, operating personnel can fix the electronic product on other product location modules, guarantees the continuity that detects, improves detection efficiency.
The invention is further configured to: the portal frame module comprises a portal frame body, a first linear driving device and a first position sensor, the portal frame body is erected above all the product positioning modules, the first linear driving device is fixedly connected with the portal frame body, and the lifting module is connected with the first linear driving device; every product location module corresponds a first position sensor, and all first position sensors all with portal frame support body fixed connection, every first position sensor is located its top that corresponds product location module.
Through adopting above-mentioned technical scheme, first position sensor detects behind the lifting unit, and first linear drive stops, makes the lift module drive the test aircraft nose and stops in the product location module top that this first position sensor corresponds.
The invention is further configured to: still include the business turn over module, product location module and business turn over module fixed connection, business turn over module drive product location module horizontal slip.
Through adopting above-mentioned technical scheme, the business turn over module can drive the product location module and slide away or slide to the below of testing the aircraft nose to in operation personnel get and put the electronic product.
The invention is further configured to: the product positioning module is connected with the second linear driving device; the second position sensor is located below the test head.
Through adopting above-mentioned technical scheme, after second position sensor detected product location module, second straight line drive arrangement stopped, made the electronic product that product location module drove its load stop in the below of testing the aircraft nose.
The invention is further configured to: the product positioning module comprises a product positioning support plate and a product detection sensor, and the product detection sensor is fixed on the product positioning support plate.
By adopting the technical scheme, when the product detection sensor detects the electronic product, the electronic product is positioned at the designated position on the product positioning carrier plate.
In summary, compared with the prior art, the invention has the following beneficial effects:
1. the invention makes the contact between the touch pressure head and the pressing key have certain elasticity by means of the structure of the linear voice coil motor. When the force fed back to the cylinder type coil by the pressing key through the pressing head is larger than the electromagnetic force generated by the cylinder type coil, the cylinder type coil can move reversely to carry out overload protection, so that the pressing key is prevented from being damaged due to overlarge stress.
2. The spring can make the contact pressure head far away from the press key by the elasticity of the spring even when the power is off, thereby preventing the contact pressure head from pressing the press key for a long time and protecting the press key.
3. The pressure sensor can realize the overvoltage protection function, and when the pressure value detected by the pressure sensor is greater than a set value, the current of the direct-current voice coil driving motor can be reduced, the pressure applied to the pressed key by the cylindrical coil through the pressing head can be reduced, and the pressed key can be protected.
Drawings
FIG. 1 is a schematic view of the overall structure of the present embodiment;
FIG. 2 is a schematic view of the internal structure of the test head;
FIG. 3 is a schematic view of the internal structure of a gantry module;
FIG. 4 is a schematic diagram of the internal structure of the in-out module;
FIG. 5 is a schematic view of a product positioning module;
fig. 6 is a schematic diagram of an internal structure of the lifting module.
In the figure: 1. an electric control module; 2. a product positioning module; 21. a product positioning carrier plate; 211. a product positioning groove; 212. a taking and placing groove; 22. a product detection sensor; 23. a support plate bracket; 3. a lifting module; 31. a third linear drive; 32. a second shield; 33. fixing the substrate; 4. testing the machine head; 41. a linear voice coil motor; 42. an elastic member; 43. a machine head fixing seat; 431. a motor connecting plate; 432. a pressure head limiting plate; 4321. a guide through hole; 433. a fixing plate; 434. a spring support block; 435. a first shield; 44. a pressure-contact head; 45. an electrical connector; 46. a pressure sensor; 47. a sensor holder; 48. a ram connector; 49. a first rail assembly; 491. a fixed rail; 492. a sliding rail; 5. a gantry module; 51. a gantry frame body; 52. a first linear driving device; 521. a drive motor; 522. a synchronous belt; 523. a synchronizing wheel; 524. a slide base; 525. a second track assembly; 5251. a linear guide rail; 5252. a slider; 53. a first position sensor; 54. an initial position sensor; 6. an in-out module; 61. a second linear drive; 62. a second position sensor; 63. a support frame body; 64. prevent excessive sensor.
Detailed Description
The technical solutions of the present invention will be clearly described below with reference to the accompanying drawings, and it is obvious that the described embodiments are not all embodiments of the present invention, and all other embodiments obtained by those skilled in the art without any inventive work belong to the protection scope of the present invention.
It should be noted that the terms "center", "upper", "lower", "horizontal", "left", "right", "front", "rear", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-2, a key pressing test apparatus according to a preferred embodiment of the present invention includes an electrical control module 1, a product positioning module 2, a lifting module 3, and a test head 4. The electronic product is positioned at the top of the product positioning module 2 in a state that the pressing key is kept upward, the testing machine head 4 is arranged above the product positioning module 2, and the lifting module 3 is used for driving the testing machine head 4 to move up and down; the electric control module 1 is electrically connected with the lifting module 3.
The test head 4 includes a linear voice coil motor 41, an elastic member 42, a head fixing base 43, and a contact head 44. The linear voice coil motor 41 includes a cylindrical iron case, a cylindrical iron core, a cylindrical magnet, and a cylindrical coil; one end of the cylindrical iron shell is open, the cylindrical magnet is fixed on the inner side of the cylindrical iron shell, the cylindrical iron core is inserted into the cylindrical magnet and fixedly connected with the cylindrical iron shell, a gap is formed between the cylindrical magnet and the cylindrical iron core, and the cylindrical coil is inserted into the gap; after the cylindrical coil is electrified, the electromagnetic force generated by the cylindrical coil drives the cylindrical coil to slide back and forth along the axis direction of the cylindrical iron core.
The machine head fixing seat 43 is fixedly connected with the lifting module 3, the linear voice coil motor 41 is fixedly connected with the machine head fixing seat 43, and the opening of the cylindrical iron shell is vertically downward. The contact head 44 is located below the cylindrical coil and is fixedly connected with the cylindrical coil. The elastic piece 42 is positioned below the cylindrical coil, the top end of the elastic piece tightly abuts against the cylindrical coil, and the bottom end of the elastic piece tightly abuts against the handpiece fixing seat 43; the electronic control module 1 is electrically connected with the linear voice coil motor 41.
During detection, the electric control module 1 controls the lifting module 3 to enable the lifting module 3 to drive the testing machine head 4 to descend to be close to the electronic product. When the test head 4 is at the lowest position, there is a gap between the pressing head 44 and the pressing key. Then the electric control module 1 controls the cylindrical coil to be electrified, the cylindrical coil slides out of the cylindrical iron shell downwards, the touch pressure head 44 presses the touch pressure key for detection, and the elastic element 42 is in a compressed state at the moment. In this embodiment, the lifting module 3 indirectly drives the contact head 44 to lift through the linear voice coil motor 41, and the structure of the linear voice coil motor 41 enables the contact head 44 and the pressed key to have certain elasticity. When the force fed back to the cylinder type coil by the key press head 44 is greater than the electromagnetic force generated by the cylinder type coil, the cylinder type coil moves in the reverse direction to perform overload protection, thereby preventing the key press from being damaged due to the excessive stress.
After the detection is finished, the electric control module 1 controls the cylindrical coil to be powered off, the elastic piece 42 restores the initial state, and the cylindrical coil is upwards pushed into the cylindrical iron shell; then the electronic control module 1 controls the lifting module 3 to make the lifting module 3 drive the testing head 4 to ascend and be away from the electronic product, so as to take down the electronic product from the product positioning module 2. During the detection, even the electricity outage appears in automatically controlled module 1, elastic component 42 also can lean on the elasticity of self upwards to push into the section of thick bamboo type iron-clad with section of thick bamboo type coil, makes touch pressure head 44 keep away from pressing the key, prevents that touch pressure head 44 from pressing on pressing the key for a long time, and the protection is pressed the key.
The contact head 44 is a flexible material in this embodiment. When the touch head 44 contacts the press key, the touch head 44 made of flexible material has a springback amount of several millimeters, so that the touch head 44 is in elastic contact with the press key, the effect of pressing the press key can be realized, and the possibility of being crushed due to the overlarge stress of the press key can be reduced. Specifically, the contact head 44 may be made of PU material, rubber material, or the like.
The head fixing base 43 in this embodiment includes a motor connecting plate 431, a head pressure-limiting plate 432, and a fixing plate 433. Fixed plate 433 and lifting module 3 fixed connection, motor connecting plate 431 and pressure head limiting plate 432 all with fixed plate 433 fixed connection. The cylindrical iron shell of the linear voice coil motor 41 is fixedly connected with the motor connecting plate 431, the pressure head limiting plate 432 is positioned below the linear voice coil motor 41, a guide through hole 4321 vertically penetrating through the pressure head limiting plate 432 is formed in the pressure head limiting plate 432, and the contact pressure head 44 is inserted into the guide through hole 4321 and can slide up and down along the hole wall of the contact pressure head. The guide through hole 4321 serves to define the position of the touch head 44 so that the touch head 44 accurately presses the pressed key.
Specifically, the test head 4 further includes two electrical connectors 45, the two electrical connectors 45 are electrically connected to the cylindrical coil, and the electronic control module 1 is electrically connected to the two electrical connectors 45. Both electrical connections 45 are fixed to the motor connection plate 431.
Specifically, the test head 4 further includes a pressure sensor 46, the pressure sensor 46 is located between the linear voice coil motor 41 and the contact head 44, and both the linear voice coil motor 41 and the contact head 44 are fixedly connected to the pressure sensor 46. When the touch head 44 is pressed on the pressed key, the pressure sensor 46 collects the pressure value applied by the touch head 44 to the pressed key, and feeds the pressure value back to the electronic control module 1. The pressure value is fed back to the PC end by the electronic control module 1, whether the analysis pressure value meets the design requirement or not is analyzed, and the analysis result is displayed through the display and uploaded to the server at the same time. Meanwhile, an overvoltage protection function is further provided in the embodiment, when the pressure value detected by the pressure sensor 46 is greater than a set value, the electronic control module 1 reduces the current of the direct current voice coil driving motor 521, and reduces the pressure applied to the pressed key by the cylindrical coil through the touch head 44, so as to prevent the pressed key from being damaged by pressure.
Specifically, the test head 4 further comprises a sensor fixing seat 47 and a pressure head connecting piece 48. In this embodiment, a driving motor 521 connector is fixed on the bottom surface of the cylindrical coil of the linear voice coil motor 41, the sensor fixing seat 47 is located between the driving motor 521 connector and the pressure sensor 46, and the sensor fixing seat 47 is detachably connected with the pressure sensor 46 through a threaded connector. The pressure head connecting piece 48 is located between the pressure sensor 46 and the contact pressure head 44, and two screws are arranged at two ends of the pressure sensor 46 in the embodiment and are respectively in threaded connection with the sensor fixing seat 47 and the pressure head connecting piece 48. The contact head 44 is sleeved on the bottom end of the pressure head connecting piece 48, and the contact head is detachably connected with the pressure head connecting piece 48 through friction force.
The testing machine head 4 further comprises a first guide rail assembly 49, the first guide rail assembly 49 comprises a fixed rail 491 and a sliding rail 492, the fixed rail 491 is fixedly connected with the fixing plate 433, the sliding rail 492 is slidably connected with the fixed rail 491, the sliding direction of the sliding rail 492 is parallel to the output direction of the linear voice coil motor 41, and the sensor fixing seat 47 is fixedly connected with the sliding rail 492. The first rail assembly 49 can assist the linear voice coil motor 41 in defining the sliding direction of the contact head 44.
In this embodiment, the elastic member 42 is a tower-shaped spring, which has the advantages of small volume and large load and can support the cylindrical coil well.
Specifically, the handpiece fixing base 43 further includes a spring supporting block 434, and the spring supporting block 434 is located below the sensor fixing base 47 and is fixedly connected to the fixing plate 433. The tower-shaped spring is disposed between the sensor fixing seat 47 and the spring supporting block 434, and two ends of the tower-shaped spring respectively abut against the sensor fixing seat 47 and the spring supporting block 434. In this embodiment, the bottom surface of the sensor fixing seat 47 is provided with a spring limiting groove, and the top surface of the spring supporting block 434 is provided with a spring limiting post. The top end of the tower-shaped spring is embedded into the spring limiting groove, and the bottom end of the tower-shaped spring is sleeved on the spring limiting column.
Specifically, the handpiece fixing base 43 further includes a first protective cover 435, and the first protective cover 435 covers the side surfaces of the motor connecting plate 431, the pressure head limiting plate 432 and the fixing plate 433, and is detachably connected to the fixing plate 433 through a threaded connection. The first protective cover 435, the motor connecting plate 431, the pressure head limiting plate 432 and the fixing plate 433 form a relatively closed cover body, and play a role in preventing dust and protecting the internal components.
The embodiment also comprises a portal frame module 5, wherein the portal frame module 5 is electrically connected with the electronic control module 1; the product positioning modules 2 are arranged in plurality, and all the product positioning modules 2 are horizontally and linearly arranged; lifting module 3 installs on portal frame module 5, and lifting module 3 slides along the direction of arranging of product location module 2 on portal frame module 5 to drive test aircraft nose 4 and press the key test to the electronic product on the different product location module 2. When pressing the key test to the electronic product on a product location module 2, operating personnel can fix the electronic product on other product location modules 2, guarantees the continuity that detects, improves detection efficiency. In this embodiment, two product positioning modules 2 are provided.
As shown in fig. 3, the gantry module 5 includes a gantry frame body 51, a first linear driving device 52 and a first position sensor 53, the gantry frame body 51 is erected above all the product positioning modules 2, the first linear driving device 52 is fixedly connected with the gantry frame body 51, and the lifting module 3 is connected with the first linear driving device 52; each product positioning module 2 corresponds to one first position sensor 53, all the first position sensors 53 are fixedly connected with the portal frame body 51, and each first position sensor 53 is positioned above the corresponding product positioning module 2; the first linear driving device 52 and all the first position sensors 53 are electrically connected with the electronic control module 1. In this embodiment, two first position sensors 53 are disposed corresponding to the product positioning module 2. After the first position sensor 53 detects the lifting assembly, it will send a signal to the electronic control module 1, and the electronic control module 1 controls the first linear driving device 52 to stop, so that the lifting module 3 drives the testing machine head 4 to stop above the product positioning module 2 corresponding to the first position sensor 53.
In this embodiment, the first linear driving device 52 is fixed in the gantry frame body 51, and includes a driving motor 521, a synchronous belt 522, two synchronous wheels 523 and a sliding seat 524, the two synchronous wheels 523 tightly support the synchronous belt 522, an output end of the driving motor 521 is fixedly connected with one of the synchronous wheels 523, the sliding seat 524 is fixedly connected with the synchronous belt 522, and the sliding seat 524 extends out of the gantry frame body 51 and is fixedly connected with the lifting module 3.
Specifically, the first linear driving device 52 further includes a second guide assembly 525, the second guide assembly 525 includes a linear guide 5251 and a sliding block 5252, and the sliding block 5252 is slidably connected to the linear guide 5251. In this embodiment, two second rail assemblies 525 are disposed in the first linear driving device 52, the two second rail assemblies 525 are respectively located at two sides of the timing belt 522, the two sliding blocks 5252 are both fixedly connected to the sliding base 524, and one of the sliding blocks 5252 is fixedly connected to the timing belt 522.
Specifically, the gantry module 5 further includes an initial position sensor 54, and the initial position sensor 54 is fixed on the gantry frame body 51 and located above any one of the product positioning modules 2. The home position sensor 54 in this embodiment is located above the leftmost product positioning module 2. After the electronic control module 1 is started, if the initial position sensor 54 detects the sliding seat 524, the sliding seat 524 is located at the initial position, and the driving motor 521 does not need to be started; if the initial position sensor 54 does not detect the slide seat 524, the slide seat 524 is located at a non-initial position, and the driving motor 521 is started to bring the slide seat 524 to the initial position.
This embodiment still includes business turn over module 6, and product location module 2 and business turn over module 6 fixed connection, business turn over module 6 drive product location module 2 horizontal slip, and business turn over module 6 is connected with automatically controlled module 1 electricity. The driving direction of the in-out module 6 in this embodiment is perpendicular to the arrangement direction of the product positioning module 2. Every product location module 2 is connected one and is passed in and out module 6, and pass in and out module 6 corresponds product location module 2 and sets up two. The in-out module 6 can drive the product positioning module 2 to slide away from or slide to the lower part of the testing machine head 4, so that an operator can conveniently take and place the electronic product.
As shown in fig. 4, the in-out module 6 includes a second linear driving device 61 and a second position sensor 62, and the product positioning module 2 is connected to the second linear driving device 61; the second position sensor 62 is located below the testing machine head 4, and both the second linear driving device 61 and the second position sensor 62 are electrically connected with the electronic control module 1. After the second position sensor 62 detects the product positioning module 2, it will send a signal to the electronic control module 1, and the electronic control module 1 controls the second linear driving device 61 to stop, so that the product positioning module 2 drives the loaded electronic product to stop below the testing machine head 4. The second linear drive 61 in this embodiment corresponds to the components of the first linear drive 52.
Specifically, the in-out module 6 further includes a support frame 63, the second linear driving device 61 and the second position sensor 62 are both fixed on the support frame 63, and the sliding seat of the second linear driving device 61 extends out of the support frame 63 and is fixedly connected with the product positioning module 2.
Specifically, the in-out module 6 further includes an over-position prevention sensor 64, and the over-position prevention sensor 64 is mounted on the support frame 63 and located near a synchronizing wheel of the second linear driving device 61 far from the second position sensor 62.
As shown in fig. 5, the product positioning module 2 includes a product positioning carrier 21 and a product detection sensor 22, the product detection sensor 22 is fixed on the product positioning carrier 21, and the product detection sensor 22 is electrically connected to the electronic control module 1. When the product detecting sensor 22 detects the electronic product, it means that the electronic product is located at a designated position on the product positioning carrier 21, and at this time, the product detecting sensor 22 will send a product positioning signal to the electronic control module 1. Automatically controlled module 1 can drive business turn over module 6, portal frame module 5 and lifting module 3, makes test aircraft nose 4 and product location module 2 align, drives test aircraft nose 4 afterwards and presses the pressure of key and touch the detection.
Specifically, the top surface of the product positioning carrier 21 is provided with a product positioning slot 211, the sensing end of the product detection sensor 22 is located in the product positioning slot 211, and the sensing end surface of the product detection sensor 22 is flush with the bottom surface of the product positioning slot 211.
Specifically, the top surface of the product positioning carrier 21 is further provided with two pick-and-place slots 212, and the two pick-and-place slots 212 are respectively located at two sides of the product positioning slot 211 and are communicated with the product positioning slot 211, so as to take out or place the electronic product into the product positioning slot 211.
Specifically, the product positioning module 2 further includes a carrier support 23, the carrier support 23 is fixedly connected to the slide seat of the second linear driving device 61, and the product positioning carrier 21 is fixed on the top surface of the carrier support 23.
As shown in fig. 6, the lifting module 3 includes a third linear driving device 31, a second shield 32, and a fixed base plate 33, and components of the third linear driving device 31 correspond to components of the first linear driving device 52. The fixed substrate 33 is fixedly connected to the slide 524 of the first linear driving device 52, the third linear driving device 31 is fixedly connected to the fixed substrate 33, and the second protection mask 32 is fixedly connected to the fixed substrate 33. The carriage of the third linear drive 31 is located outside the second guard 32 and the remaining components are located inside the second guard 32. The slide of the third linear driving device 31 is fixedly connected to the fixing plate 433 of the head fixing base 43. The driving motor in the third linear driving device 31 is electrically connected to the electronic control module 1, and the electronic control module 1 controls the sliding seat of the third linear driving device 31 to move up and down through the driving motor of the third linear driving device 31, so as to drive the testing machine head 4 to move up and down.
In summary, the present embodiment utilizes the structure of the linear voice coil motor 41 to make the contact between the pressing head 44 and the pressed key have a certain elasticity. When the force fed back to the cylinder type coil by the key press through the touch head 44 is greater than the electromagnetic force generated by the cylinder type coil, the cylinder type coil moves in the reverse direction to perform overload protection, thereby preventing the key press from being damaged due to excessive stress. In addition, even in the power-off state, the tower-shaped spring can push the cylindrical coil upwards into the cylindrical iron shell by means of the elasticity of the tower-shaped spring, so that the touch head 44 is far away from the pressed key, the touch head 44 is prevented from being pressed on the pressed key for a long time, and the pressed key is protected. In addition, in the embodiment, the pressure sensor 46 further has an overvoltage protection function, and when the pressure value detected by the pressure sensor 46 is greater than the set value, the electronic control module 1 reduces the current of the dc voice coil driving motor 521, so as to reduce the pressure applied to the pressed key by the cylinder coil through the pressing head 44, thereby protecting the pressed key.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A press key test aircraft nose which characterized in that: the testing machine head (4) comprises a linear voice coil motor (41), an elastic piece (42), a machine head fixing seat (43) and a contact pressure head (44), wherein the output end face of the linear voice coil motor (41) faces downwards and is fixedly connected with the machine head fixing seat (43), and the contact pressure head (44) is fixedly connected with the output end face of the linear voice coil motor (41); the elastic piece (42) is located below the linear voice coil motor (41), the top end of the elastic piece abuts against the output end face of the linear voice coil motor (41), and the bottom end of the elastic piece abuts against the machine head fixing seat (43).
2. The key press test head as claimed in claim 1, wherein: the testing machine head (4) further comprises a pressure sensor (46), the pressure sensor (46) is located between the linear voice coil motor (41) and the contact pressure head (44), and the linear voice coil motor (41) and the contact pressure head (44) are fixedly connected with the pressure sensor (46).
3. A key press test head as defined in claim 1, wherein: the head fixing seat (43) comprises a motor connecting plate (431) and a pressure head limiting plate (432), the linear voice coil motor (41) is fixedly connected with the motor connecting plate (431), the pressure head limiting plate (432) is located below the linear voice coil motor (41), a guide through hole (4321) is formed in the pressure head limiting plate (432), and the contact pressure head (44) is inserted into the guide through hole (4321) and can slide up and down.
4. The key press test head as claimed in claim 1, wherein: the testing machine head (4) further comprises a first guide rail assembly (49), the first guide rail assembly (49) comprises a fixed rail (491) and a sliding rail (492), the fixed rail (491) is fixedly connected with a machine head fixing seat (43), the sliding rail (492) is slidably connected with the fixed rail (491), the sliding direction of the sliding rail (492) is parallel to the output direction of the linear voice coil motor (41), and the contact pressure head (44) is fixedly connected with the sliding rail (492).
5. A key-press test device, comprising: comprising a product positioning module (2), a lifting module (3) and a test head (4) according to any one of the preceding claims 1 to 4; product location module (2) are used for injecing electronic product (7) position, and test aircraft nose (4) set up in product location module (2) top, aircraft nose fixing base (43) and lifting module (3) fixed connection, and lifting module (3) are used for driving aircraft nose fixing base (43) and reciprocate.
6. The key pressing test apparatus according to claim 5, wherein: the gantry type automatic packaging machine is characterized by further comprising a plurality of portal frame modules (5), wherein the product positioning modules (2) are arranged in a horizontal linear mode, and all the product positioning modules (2) are arranged in a horizontal linear mode; the lifting module (3) is installed on the portal frame module (5) and can slide on the portal frame module (5) along the arrangement direction of the product positioning module (2).
7. The key press test apparatus as set forth in claim 6, wherein: the gantry module (5) comprises a gantry frame body (51), a first linear driving device (52) and a first position sensor (53), the gantry frame body (51) is erected above all the product positioning modules (2), the first linear driving device (52) is fixedly connected with the gantry frame body (51), and the lifting module (3) is connected with the first linear driving device (52); every product location module (2) corresponds a first position sensor (53), and all first position sensors (53) all with portal frame body (51) fixed connection, every first position sensor (53) are located its top that corresponds product location module (2).
8. The key pressing test apparatus according to claim 6, wherein: still include business turn over module (6), product location module (2) and business turn over module (6) fixed connection, business turn over module (6) drive product location module (2) horizontal slip.
9. A key depression test apparatus according to claim 8, wherein: the in-out module (6) comprises a second linear driving device (61) and a second position sensor (62), and the product positioning module (2) is connected with the second linear driving device (61); the second position sensor (62) is located below the test head (4).
10. The key press test apparatus as set forth in claim 6, wherein: the product positioning module (2) comprises a product positioning carrier plate (21) and a product detection sensor (22), and the product detection sensor (22) is fixed on the product positioning carrier plate (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210897417.7A CN115184791A (en) | 2022-07-28 | 2022-07-28 | Press key test aircraft nose and testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210897417.7A CN115184791A (en) | 2022-07-28 | 2022-07-28 | Press key test aircraft nose and testing arrangement |
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| Publication Number | Publication Date |
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| CN115184791A true CN115184791A (en) | 2022-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210897417.7A Pending CN115184791A (en) | 2022-07-28 | 2022-07-28 | Press key test aircraft nose and testing arrangement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116359033A (en) * | 2023-06-01 | 2023-06-30 | 成都光创联科技有限公司 | Quick pressure testing device |
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| CN216217041U (en) * | 2021-03-12 | 2022-04-05 | 珠海市运泰利自动化设备有限公司 | Mobile phone key test equipment |
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| CN207473042U (en) * | 2017-07-11 | 2018-06-08 | 深圳长城开发科技股份有限公司 | Fingerprint module test equipment and its test header structure |
| CN211527795U (en) * | 2019-12-11 | 2020-09-18 | 珠海博杰电子股份有限公司 | Keyboard performance test equipment |
| CN212568891U (en) * | 2020-05-29 | 2021-02-19 | 杭州万德激光有限公司 | Device applied to automatic contraction of flying probe tester during power failure |
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Application publication date: 20221014 |
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