CN108120879B - Capacitive resistance testing device of screen connector - Google Patents
Capacitive resistance testing device of screen connector Download PDFInfo
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- CN108120879B CN108120879B CN201810168743.8A CN201810168743A CN108120879B CN 108120879 B CN108120879 B CN 108120879B CN 201810168743 A CN201810168743 A CN 201810168743A CN 108120879 B CN108120879 B CN 108120879B
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- 230000003139 buffering effect Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
- G01R27/2605—Measuring capacitance
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Abstract
The invention discloses a capacitive resistance testing device of a screen connector, and belongs to the technical field of screen testing. The device comprises a frame, a first motion mechanism arranged at the upper end of the frame, and a transmission end of the first motion mechanism is vertically upwards arranged; the carrier seat is connected to the upper end of the transmission end and is horizontally arranged, can move up and down, a screen connector is placed before and after the test, and the screen connector does not generate test interference when moving to the lower part during the test, so that the accuracy of the test is ensured; the second movement mechanism is connected to the frame and above the carrying seat, and the driving end of the second movement mechanism is vertically downward and moves along the vertical direction; the suction plate is connected to the lower end of the transmission end and is horizontally provided with a plurality of through holes, and the suction plate is communicated with the first vacuum pump, so that a screen can be sucked onto the suction plate to test an induction area on the lower surface of the screen connector; the left test pin die and the right test pin die are arranged on the rack and are respectively connected with pins of the screen connector in a one-to-one correspondence manner so as to test the screen connector.
Description
Technical Field
The invention relates to the technical field of screen testing, in particular to a capacitive resistance testing device of a screen connector.
Background
The screen connector of electronic products such as mobile phones or tablet computers needs further testing before assembly after production, so as to ensure the excellent rate of the final products. There is a test of capacitance and resistance of the screen connector, however, since the screen connector has many connection pins and irregular shape, and since the sensing area of the screen connector is at the lower surface, the screen needs to be lifted up for testing, and if the upper surface is tested, other substances may interfere with the test signal, so that the test result is inaccurate. The existing devices are therefore rarely capable of accurately testing the capacitive resistance of the screen connector.
Disclosure of Invention
The invention aims to provide a capacitive resistance testing device of a screen connector, which solves the problem that in the prior art, accurate capacitive resistance testing cannot be carried out on a sensing area of the lower surface of the screen connector.
In order to achieve the above object, the following technical solutions are provided,
the invention provides a capacitive resistance testing device of a screen connector, which comprises a rack and further comprises:
the first movement mechanism is arranged at the upper end of the rack, and the transmission end of the first movement mechanism is vertically upwards arranged and can move along the vertical direction;
the carrier seat is connected to the transmission end of the first movement mechanism and is horizontally arranged;
the second movement mechanism is connected to the frame and arranged above the carrying seat, and the transmission end of the second movement mechanism is vertically arranged downwards and can move along the vertical direction;
the suction plate is connected to the lower end of the transmission end of the second movement mechanism and is horizontally arranged, a plurality of first through holes penetrating up and down are formed in the suction plate, and the first through holes are communicated with the first vacuum pump;
the left test pin die and the right test pin die are arranged on the rack at the left side of the carrier seat and are used for being connected with pins at one side of the screen connector in a one-to-one correspondence manner; the right test needle die is arranged on the frame on the right side of the carrier seat and is used for being connected with pins on the other side of the screen connector in a one-to-one correspondence mode, and the upper end face of the left test needle die is flush with the upper end face of the right test needle die.
Further, the screen connector capacitance resistance testing device also comprises,
the left pressure head assembly comprises a left pressure head and a third movement mechanism, and the left pressure head is arranged on the third movement mechanism, can move along the vertical direction and the width direction of the carrier seat and is used for pressing the left test needle die;
the right pressure head assembly comprises a right pressure head and a fourth movement mechanism, wherein the right pressure head is arranged on the fourth movement mechanism, can move along the vertical direction and the width direction of the carrier seat and is used for compressing the right test needle die.
Further, the edge of the edge where the left test needle die or the right test needle die is located of the carrier is detachably connected with a first reference stop, and the edge of the edge adjacent to the edge is provided with a second reference stop for positioning the screen connector.
Further, the side surface of the first reference stop block is connected to the side surface of the carrier through a spring, and the axis of the spring is consistent with the length direction of the carrier; the lower surface of the suction plate is provided with a groove at a position corresponding to the first reference stop block, when the suction plate is pressed down on the carrier seat, the inner edge of the groove is partially overlapped with the first reference stop block, and the first reference stop block can be pulled out along the length direction of the carrier seat.
Further, a plurality of second through holes penetrating up and down are formed in the carrying seat, and the second through holes are communicated with the second vacuum pump.
Further, a plurality of third through holes penetrating up and down are formed in the left test needle die, and the third through holes are communicated with a third vacuum pump;
the right test needle die is provided with a plurality of fourth through holes penetrating through the right test needle die from top to bottom, and the fourth through holes are communicated with the third vacuum pump.
Further, a bracket is arranged on the frame and on one side, adjacent to the left test needle die and the right test needle die, of the frame along the vertical direction, and the second movement mechanism is arranged on the bracket.
Further, the first movement mechanism is a first air cylinder, a piston rod of the first air cylinder is vertically upwards arranged, and the carrier is connected to the upper end of the piston rod of the first air cylinder;
the second motion mechanism is a second air cylinder, a piston rod of the second air cylinder is vertically downwards arranged, and the suction plate is connected to the lower end of the piston rod of the second air cylinder.
Further, the third movement mechanism comprises a left sliding rail arranged on the left side of the carrier in the width direction of the carrier and a left sliding table matched with the left sliding rail;
the sliding table is characterized by further comprising a third air cylinder arranged on the left side of the carrier seat, wherein the free end of a piston rod of the third air cylinder is connected with the left sliding table, and the axis of the piston rod of the third air cylinder is parallel to the axis of the left sliding rail;
the left pressure head is connected with the free end of a piston rod of the fourth cylinder, and the piston rod of the fourth cylinder is arranged along the vertical direction.
Further, the fourth movement mechanism comprises a right sliding rail arranged on the right side of the carrying seat along the width direction of the carrying seat and a right sliding table matched with the right sliding rail;
the sliding table is characterized by further comprising a fifth air cylinder arranged on the right side of the carrier seat, wherein the free end of a piston rod of the fifth air cylinder is connected with the right sliding table, and the axis of the piston rod of the fifth air cylinder is parallel to the axis of the right sliding rail;
the device is characterized by further comprising a sixth air cylinder arranged on the right sliding table, wherein the sixth air cylinder is connected to the right sliding table through a right bracket, the right pressure head is connected to the free end of a piston rod of the sixth air cylinder, and the piston rod of the sixth air cylinder is arranged in the vertical direction.
When the capacitive resistance testing device for the screen connector is used, the upper end of the carrier seat is flush with the upper ends of the left and right test pin dies, and then the screen connector is placed on the carrier seat, so that the left and right test pin dies are in one-to-one correspondence connection with pins of the screen connector. And then opening the second movement mechanism to enable the suction plate to move downwards to press the carrier seat, and closing the second movement mechanism after the suction plate and the carrier seat have certain pressure. And starting the first vacuum pump until the suction plate tightly sucks the screen connector, starting the first movement mechanism, driving the carrier to move downwards until the carrier moves to a position which does not interfere with the test, and closing the first movement mechanism. And starting to test the capacitance and the resistance of the screen connector, starting the first movement mechanism after the test is completed, lifting the carrier to the original position, and closing the first movement mechanism. And then closing the first vacuum pump to enable the tested screen connector to fall onto the carrier seat, starting the second movement mechanism to enable the suction plate to rise to the original position, and taking down the tested screen connector.
Compared with the prior art, the capacitive resistance testing device for the screen connector is provided with the first movement mechanism, can drive the carrier to move up and down, can place the screen connector before and after testing, can move downwards so as not to generate interference during testing, and ensures the testing accuracy. The screen connector comprises a screen connector, a first vacuum pump, a second moving mechanism, a suction plate, a plurality of first through holes, a screen connector and a screen, wherein the first through holes are formed in the screen connector, the screen connector is arranged on the screen connector, and the screen connector is arranged on the screen connector. The left test pin die and the right test pin die are connected with pins of the screen connector in a one-to-one correspondence mode so as to test the screen connector. The invention has simple structure and can accurately test the sensing area on the lower surface of the screen connector.
Drawings
FIG. 1 is a schematic diagram of a capacitive resistance testing device of a screen connector according to an embodiment of the present invention;
fig. 2 is a schematic structural view of the connection between the carrier and the first reference block in fig. 1.
Reference numerals: 1-a carrier; 2-a suction plate; 3-left test pin die; 4-right test pin die; 5-left pressure head; 6-right pressure head; 7 a-a first reference stop; 7 b-a second reference stop; 8-a first cylinder; 9-a second cylinder; 10-a third cylinder; 11-fourth cylinder; 12-a fifth cylinder; 13-sixth cylinder; 14-left slide rail; 15-a left sliding table; 16-right slide rail; 17-a right slipway; 18-spring.
Detailed Description
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in FIG. 1, the capacitive resistance testing device of the screen connector provided by the invention comprises a frame, a first moving mechanism, a carrier 1, a second moving mechanism, a suction plate 2, a left test pin die 3 and a right test pin die 4. The first movement mechanism is arranged at the upper end of the frame, and the transmission end is vertically upwards arranged and can move along the vertical direction. The carrier 1 is connected to the transmission end of the first movement mechanism and is horizontally arranged. The second movement mechanism is connected to the frame and arranged above the carrying seat 1, and the transmission end of the second movement mechanism is vertically arranged downwards and can move along the vertical direction; the suction plate 2 is connected with the lower end of the transmission end of the second motion mechanism and is horizontally arranged. Further, a bracket is arranged on the frame and on one side, adjacent to the left test needle die 3 and the right test needle die 4, in the vertical direction, and a second movement mechanism is arranged on the bracket. The left test pin die 3 is arranged on the frame at the left side of the carrier 1 and is used for being connected with pins at one side of the screen connector in a one-to-one correspondence manner; the right test needle die 4 is arranged on the frame on the right side of the carrier 1 and is used for being connected with pins on the other side of the screen connector in a one-to-one correspondence manner, and the upper end face of the left test needle die 3 is flush with the upper end face of the right test needle die 4.
Specifically, in the embodiment, the first movement mechanism is a first cylinder 8, a piston rod of the first cylinder 8 is vertically arranged upwards, and the carrier 1 is connected to the upper end of the piston rod of the first cylinder 8; the second motion mechanism is a second air cylinder 9, a piston rod of the second air cylinder 9 is vertically arranged downwards, and the suction plate 2 is connected to the lower end of the piston rod of the second air cylinder 9. The suction plate 2 is provided with a plurality of first through holes penetrating up and down, and the first through holes are communicated with the first vacuum pump. The center of the suction plate 2 is also provided with a plurality of vent holes which are not communicated with the first vacuum pump, and the vent holes are used for leading outside air between the screen and the suction plate 2 when the screen is not required to be sucked, so that the screen is convenient to fall off. Before placing the screen connector, the upper end face of the carrier 1 is flush with the upper end face of the left test pin die 3 and the upper end face of the right test pin die 4.
Further, the capacitive resistance testing device of the screen connector further comprises a left pressure head assembly and a right pressure head assembly, wherein the left pressure head assembly comprises a left pressure head 5 and a third movement mechanism, and the left pressure head 5 is arranged on the third movement mechanism and can move along the width direction of the vertical and carrying seat 1 and is used for pressing the left test needle mould 3; the right pressure head assembly comprises a right pressure head 6 and a fourth movement mechanism, wherein the right pressure head 6 is arranged on the fourth movement mechanism and can move along the width direction of the vertical and carrier 1 for pressing the right test needle die 4. The screen connector, the left test pin die and the right test pin die are pressed together by the left pressure head assembly and the right pressure head assembly, so that the stability of the test is ensured.
Specifically, the third movement mechanism includes a left slide rail 14 provided on the left side of the carrier 1 in the width direction of the carrier 1, a left slide table 15 mated with the left slide rail 14; the device further comprises a third air cylinder 10 arranged on the left side of the carrier seat 1, the free end of a piston rod of the third air cylinder 10 is connected with the left sliding table 15, and the axis of the piston rod of the third air cylinder 10 is parallel to the axis of the left sliding rail 14; the left pressure head 5 is connected to the free end of a piston rod of the fourth cylinder 11, and the piston rod of the fourth cylinder 11 is arranged in the vertical direction. The fourth movement mechanism comprises a right sliding rail 16 arranged on the right side of the carrier 1 along the width direction of the carrier 1 and a right sliding table 17 matched with the right sliding rail 16; the device further comprises a fifth air cylinder 12 arranged on the right side of the carrier seat 1, the free end of a piston rod of the fifth air cylinder 12 is connected with the right sliding table 17, and the axis of the piston rod of the fifth air cylinder 12 is parallel to the axis of the right sliding rail 16; the hydraulic cylinder further comprises a sixth air cylinder 13 arranged on the right sliding table 17, the sixth air cylinder 13 is connected to the right sliding table 17 through a right bracket, the right pressure head 6 is connected to the free end of a piston rod of the sixth air cylinder 13, and the piston rod of the sixth air cylinder 13 is arranged in the vertical direction.
Further, two first reference stoppers 7a are detachably connected to the edge of the side of the carrier 1 where the left test needle mold 3 or the right test needle mold 4 is located, and two second reference stoppers 7b are provided to the edge of the side adjacent to the side for positioning the screen. Specifically, the detachable connection is achieved by the following results: as shown in fig. 2, the side surface of the first reference stopper 7a is connected to the side surface of the carrier 1 through a spring 18, and the axis of the spring 18 is consistent with the length direction of the carrier 1; the lower surface of the suction plate 2 is provided with a groove at a position corresponding to the first reference stopper 7a, and when the suction plate 2 is used for lowering the carrier 1, the inner edge of the groove is partially overlapped with the first reference stopper 7a, so that the first reference stopper 7a can be pulled out along the length direction of the carrier 1.
Further, be provided with a plurality of second through-holes that run through from top to bottom on carrying seat 1, the second through-hole all communicates with the second vacuum pump, can inhale the screen on carrying seat 1. The left test needle mould 3 is provided with a plurality of third through holes penetrating up and down, and the third through holes are communicated with a third vacuum pump; the right test needle die 4 is provided with a plurality of fourth through holes penetrating up and down, and the fourth through holes are communicated with the third vacuum pump and can suck the screen connector onto the left test needle die and the right test needle die. The center of the carrying seat 1 is also provided with a plurality of vent holes which are not communicated with the second vacuum pump and are used for leading outside air between the screen and the carrying seat 1 when the screen is not required to be sucked, so that the screen can be conveniently taken away. Further, the end of the left and right sliding rails 16 far away from the left and right test needle molds 4 is provided with buffers, the buffers on the left sliding rail 14 are connected with the left sliding table 15, and the buffers on the right sliding rail 16 are connected with the right sliding table 17, so as to play a role in buffering. The testing device is characterized in that a testing board is further arranged in the frame, the left testing pin die 4 and the right testing pin die 4 are electrically connected with the testing board through a switching PCB, and the testing of capacitance and resistance of the screen connector is achieved.
When the capacitive resistance testing device for the screen connector is used, the upper end of the carrier 1 is flush with the upper ends of the left and right test pin dies, then the screen connector is placed on the carrier 1, and the first reference stop block 7a and the second reference stop block 7b are aligned, so that the left and right test pin dies are in one-to-one correspondence with pins of the screen connector. Then the second vacuum pump is started to suck the screen tightly on the carrier 1. Then the second cylinder 9 is opened to move the suction plate 2 downwards to press the carrier 1, and when the suction plate 2 and the carrier 1 have a certain pressure, the second cylinder 9 is closed. The second vacuum pump is turned off and the first vacuum pump is turned on until the suction plate 2 tightly sucks the screen, the first cylinder 8 is turned on, which drives the carrier 1 to move downwards until the carrier 1 moves to a position where it does not interfere with the test, and the first cylinder 8 is turned off. And opening the third air cylinder 10 and the fifth air cylinder 12 to respectively drive the left pressure head assembly and the right pressure head assembly to move towards the left test needle mould and the right test needle mould until the left test needle mould and the right test needle mould correspond to each other, and closing the third air cylinder 10 and the fifth air cylinder 12. And then the fourth cylinder 11 and the sixth cylinder 13 are started to respectively drive the left pressure head assembly and the right pressure head assembly to move downwards until the screen connector is tightly pressed with the left test needle mould and the right test needle mould, and the fourth cylinder 11 and the sixth cylinder 13 are closed. After the test is finished, the fourth cylinder 11 and the sixth cylinder 13 are started to enable the left pressure head assembly and the right pressure head assembly to move upwards to the original positions, the fourth cylinder 11 and the sixth cylinder 13 are closed, the third cylinder 10 and the fifth cylinder 12 are started to enable the left pressure head assembly and the right pressure head assembly to be driven to retract to the original positions towards the two sides, and the third cylinder 10 and the fifth cylinder 12 are closed. Then the first cylinder 8 is opened, the carrier 1 is lifted to the original position, and the first cylinder 8 is closed. And then the first vacuum pump is closed, the tested screen connector falls onto the carrier seat 1, the second air cylinder 9 is opened, the suction plate 2 is lifted to the original position, and the tested screen connector is taken down to complete the test work.
According to the capacitive resistance testing device for the screen connector, provided by the invention, the first movement mechanism is arranged, so that the carrier 1 can be driven to move up and down, the screen connector can be placed before and after testing, and the screen connector can also move downwards so as not to generate interference during testing, and the testing accuracy is ensured. The second motion mechanism and the suction plate 2 are arranged, the second motion mechanism drives the suction plate 2 to move up and down, a plurality of first through holes are formed in the suction plate 2 and are connected with the first vacuum pump, and a screen can be sucked onto the suction plate 2 so as to test an induction area of the lower surface of the screen connector. The left test pin die and the right test pin die are connected with pins of the screen connector in a one-to-one correspondence mode so as to test the screen connector. The invention has simple structure and can accurately test the sensing area on the lower surface of the screen connector.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (7)
1. The utility model provides a screen connector capacitance resistance testing arrangement, includes the frame, its characterized in that still includes:
the first movement mechanism is arranged at the upper end of the rack, and the transmission end of the first movement mechanism is vertically upwards arranged and can move along the vertical direction;
the carrier seat (1) is connected to the transmission end of the first movement mechanism and is horizontally arranged;
the second movement mechanism is connected to the frame and arranged above the carrying seat (1), and the transmission end of the second movement mechanism is vertically arranged downwards and can move along the vertical direction;
the suction plate (2) is connected to the lower end of the transmission end of the second movement mechanism and is horizontally arranged, a plurality of first through holes penetrating up and down are formed in the suction plate (2), and the first through holes are communicated with the first vacuum pump;
the left test pin die (3) and the right test pin die (4) are arranged on the rack at the left side of the carrier seat (1) and are used for being connected with pins at one side of the screen connector in a one-to-one correspondence manner; the right test pin die (4) is arranged on the frame on the right side of the carrier seat (1) and is used for being connected with pins on the other side of the screen connector in a one-to-one correspondence manner, and the upper end face of the left test pin die (3) is flush with the upper end face of the right test pin die (4);
the left pressure head assembly comprises a left pressure head (5) and a third movement mechanism, wherein the left pressure head (5) is arranged on the third movement mechanism and can move along the vertical direction and the width direction of the carrier seat (1) and is used for compressing the left test needle mould (3);
the right pressure head assembly comprises a right pressure head (6) and a fourth movement mechanism, wherein the right pressure head (6) is arranged on the fourth movement mechanism and can move along the vertical direction and the width direction of the carrier seat (1) and is used for compressing the right test needle mould (4);
a first reference stop block (7 a) is detachably connected to the edge of the carrier seat (1) where the left test needle die (3) or the right test needle die (4) is located, and a second reference stop block (7 b) is arranged at the edge of the edge adjacent to the edge and used for positioning a screen connector;
the side surface of the first reference stop block (7 a) is connected to the side surface of the carrier seat (1) through a spring (18), and the axis of the spring (18) is consistent with the length direction of the carrier seat (1); the lower surface of the suction plate (2) is provided with a groove at a position corresponding to the first reference stop block (7 a), when the suction plate (2) is pressed down on the carrying seat (1), the inner edge of the groove is partially overlapped with the first reference stop block (7 a), and the first reference stop block (7 a) can be pulled out along the length direction of the carrying seat (1).
2. The capacitive resistance testing device of the screen connector according to claim 1, wherein a plurality of second through holes penetrating up and down are arranged on the carrier (1), and the second through holes are communicated with a second vacuum pump.
3. The capacitive resistance testing device of the screen connector according to claim 2, wherein a plurality of third through holes penetrating up and down are formed in the left test pin die (3), and the third through holes are communicated with a third vacuum pump;
the right test needle die (4) is provided with a plurality of fourth through holes penetrating up and down, and the fourth through holes are communicated with the third vacuum pump.
4. The capacitive resistance testing device for the screen connector according to claim 1, wherein a bracket is arranged on the frame on one side, adjacent to the left test pin die (3) and the right test pin die (4), in a vertical direction, and the second movement mechanism is arranged on the bracket.
5. The capacitive resistance testing device for the screen connector according to any one of claims 1 to 4, wherein the first movement mechanism is a first cylinder (8), a piston rod of the first cylinder (8) is vertically arranged upwards, and the carrier (1) is connected to the upper end of the piston rod of the first cylinder (8);
the second movement mechanism is a second air cylinder (9), a piston rod of the second air cylinder (9) is vertically arranged downwards, and the suction plate (2) is connected to the lower end of the piston rod of the second air cylinder (9).
6. The screen connector capacitance-resistance testing device according to claim 1, wherein the third movement mechanism comprises a left slide rail (14) arranged on the left side of the carrier (1) along the width direction of the carrier (1), and a left slide table (15) matched with the left slide rail (14);
the device further comprises a third air cylinder (10) arranged on the left side of the carrying seat (1), the free end of a piston rod of the third air cylinder (10) is connected with the left sliding table (15), and the axis of the piston rod of the third air cylinder (10) is parallel to the axis of the left sliding rail (14);
the device is characterized by further comprising a fourth air cylinder (11) arranged on the left sliding table (15), wherein the fourth air cylinder (11) is connected to the left sliding table (15) through a left bracket, the left pressure head (5) is connected to the free end of a piston rod of the fourth air cylinder (11), and the piston rod of the fourth air cylinder (11) is arranged along the vertical direction.
7. The screen connector capacitance-resistance testing device according to claim 6, wherein the fourth movement mechanism comprises a right slide rail (16) arranged on the right side of the carrier (1) along the width direction of the carrier (1), and a right slide table (17) matched with the right slide rail (16);
the device further comprises a fifth air cylinder (12) arranged on the right side of the carrying seat (1), the free end of a piston rod of the fifth air cylinder (12) is connected with the right sliding table (17), and the axis of the piston rod of the fifth air cylinder (12) is parallel to the axis of the right sliding rail (16);
the automatic feeding device is characterized by further comprising a sixth air cylinder (13) arranged on the right sliding table (17), wherein the sixth air cylinder (13) is connected to the right sliding table (17) through a right support, the right pressure head (6) is connected to the free end of a piston rod of the sixth air cylinder (13), and the piston rod of the sixth air cylinder (13) is arranged along the vertical direction.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810168743.8A CN108120879B (en) | 2018-02-28 | 2018-02-28 | Capacitive resistance testing device of screen connector |
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|---|---|---|---|
| CN201810168743.8A CN108120879B (en) | 2018-02-28 | 2018-02-28 | Capacitive resistance testing device of screen connector |
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| CN108120879A CN108120879A (en) | 2018-06-05 |
| CN108120879B true CN108120879B (en) | 2024-03-12 |
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| CN201810168743.8A Active CN108120879B (en) | 2018-02-28 | 2018-02-28 | Capacitive resistance testing device of screen connector |
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| CN109036049B (en) * | 2018-10-16 | 2020-12-11 | 马鞍山市浩宇仪表有限公司 | Ohm law display device for electronic teaching |
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| CN207882344U (en) * | 2018-02-28 | 2018-09-18 | 昆山龙雨智能科技有限公司 | Screen connection capacitance resistance test device |
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| WO2013169728A2 (en) * | 2012-05-07 | 2013-11-14 | Flextronics Ap, Llc | Universal device multi-function test apparatus |
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| CN108120879A (en) | 2018-06-05 |
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