TWI752272B - Pressure detection unit and operating equipment for its application - Google Patents

Abstract

A pressure detection unit includes a bearing and a sensor, the bearing is provided with at least one bearing portion, and a limit member is arranged on the peripheral side of the bearing portion, and the sensor is placed in the bearing The receiving part is provided with a pressure-bearing surface that can withstand the downward pressure on the first surface, and a sensing element for sensing the downward pressure is arranged on the second surface, and the sensor is limited by the limiting member of the bearing seat. When detecting the pressure under the lower pressure piece, the pressure detection unit uses the pressure-bearing surface of the sensor to contact the surface of the lower pressure piece that is vertically abutted, so that the pressure-bearing surface can bear the downward pressure The positive downward pressure of the piece, and the limit part of the bearing seat ensures the vertical displacement of the sensor, so that the sensing piece of the sensor can accurately sense the pressure under the pressing piece, so as to improve the accuracy of pressure detection. benefit.

Description

Pressure detection unit and operating equipment for its application

The present invention provides a pressure detection unit which can make the lower pressing piece vertically and positively press the sensor, so that the sensor can accurately sense the pressure under the lower pressing piece, thereby improving the pressure detection accuracy.

Today, optical components or electronic components often use a pressing device to perform the pressing operation. The pressing device must meet various operation requirements and provide the component with an appropriate pressing force. If it is too much, the operation will fail. For electronic component testing equipment, after the pick-and-placer moves the electronic component into the test seat, the moving arm of the pressing device drives the pressing member to move downward, so that the pressing member exerts an appropriate downward pressure on the electronic component. The contact point of the electronic component is kept in electrical contact with the probe of the test seat to perform the test operation. Since the pressing member will bear the reaction force of the electronic component, the pressing device is equipped with a float above the pressing member to avoid The lower pressing piece can be used for upward floating and buffering displacement. However, the assembly accuracy of the moving arm and other mechanisms will affect the pressure under the pressing piece. The lowering device performs a lowering pressure detection operation to confirm whether the pressure under the lowering piece is a preset lowering force.

Please refer to Figures 1 and 2, the test equipment is provided with a test device 12 having a test seat 121 on the machine table 11, and a pressing device 13 is arranged above the testing device 12, and the pressing device 13 is attached to a moving arm A floater 132 is assembled below the 131. The floater 132 includes a main body 1321, an actuating part 1322, a pressing part 1323 and a pressing part 1324. An actuating part 1322 is assembled inside the main body 1321, and a A pressure-feeding piece 1324, the pressure-feeding piece 1324 pushes the actuating piece 1322 for downward displacement in the Z-axis, and below the actuating piece 1322 is a pressing piece 1323 that can push down the electronic components; In the down pressure detection operation, the operator installs a pressure sensor 14 with a sensing bead 141 on the top of the test seat 121 of the test device 12 and relative to the lower pressure piece 1323 of the down pressure device 13 to sense the down pressure When the downward pressure is detected, the downward pressure device 13 uses the moving arm 131 to drive the floating The actuator 132 moves downward in the Z direction, so that the lower pressing piece 1323 of the float 132 presses against the sensing bead 141 of the pressure sensor 14, so that the sensing bead 141 senses whether the pressure under the pressing piece 1323 is However, because the lower pressing member 1323 of the floater 132 can perform a floating deflection displacement, and the sensing bead 141 has an arc surface, the pressing member 1323 is pressed down and is connected to the sensing bead 141 When making point contact, it is easy to cause the pressing member 1323 to float and bias against the sensing bead 141, so that the pressure under the pressing member 1323 will be divided into a positive force and a lateral force, resulting in the sensing bead 141 The correct lower pressure cannot be sensed, so that the lower pressure of the lower pressing member 1323 is misjudged; however, the electronic components are becoming more and more sophisticated, and the development of ultra-thin types, the lower pressure they can withstand is also greatly reduced, and the lower pressing device 13 officially performs the downward pressure During the operation of the electronic components, since the pressure sensor 14 misjudges the pressure under the pressing piece 1323, in the case where the ultra-thin electronic components can withstand the lower pressure than the pressure under the pressing piece 1323, the electronic components are bound to be overused. Therefore, how to accurately detect the pressure under the pressing member 1323 is very important.

One of the objectives of the present invention is to provide a pressure detection unit, which includes a seat and a sensor, the seat is provided with at least one receiving portion, and a limit member is arranged on the peripheral side of the receiving portion, the sensor is The detector is placed in the receiving part of the bearing seat, and a pressure bearing surface capable of withstanding the downward pressure is arranged on the first side, and a sensing element for sensing the downward pressure is arranged on the second side, and the sensor is The vertical displacement is limited by the limiting member of the bearing seat. When detecting the pressure under the lower pressing piece, the pressure detection unit uses the pressure-bearing surface of the sensor to contact the vertically abutting surface of the lower pressing piece. , so that the pressure-bearing surface bears the positive downward pressure of the pressing piece, and the limit part of the bearing seat is used to ensure the vertical displacement of the sensor, so that the sensing piece of the sensor can accurately sense the pressure under the pressing piece to achieve Practical benefits of improving the accuracy of downforce detection.

The second object of the present invention is to provide a pressure detection unit, wherein the pressure-bearing surface of the sensor is in contact with the surface of the lower pressing member that is vertically abutted, so as to prevent the lower pressing member from swaying and pressing down, making the sensor feel The sensing element of the tester accurately senses the pressure under the pressing element, so as to prevent the pressing element from being damaged by pressure on the electronic components when the pressing operation is formally performed, thereby achieving the practical benefit of improving the yield of electronic components.

The third object of the present invention is to provide an operation equipment using a pressure detection unit, which includes a machine table, a pressing device, a pressure detecting unit and a central control device, and the pressing device is a It is assembled on the machine table, and has at least a pressing piece under the pressing piece to be pressed. The pressure detection unit is arranged below the pressing device, and is provided with a seat and a sensor to detect the pressing piece under the pressing piece. Pressure, the central control device is used to control and integrate the actions of various devices to perform automated operations and achieve practical benefits of improving operational efficiency.

(accustomed knowledge)

11: Machine

12: Test device

121: Test seat

13: Press down device

131: Moving Arm

132: Floater

1321: Ontology

1322: Actuator

1323: Down Press

1324: Feeding parts

14: Pressure sensor

141: Sensing Beads

〔this invention〕

20: Pressure detection unit

21: Bearing

211: Bearing Department

212: Limit parts

22: Sensor

221: Pressure bearing surface

222: Sensing piece

30: Machine

40: Press down device

41: Moving Arm

42: Floater

421: Ontology

422: Actuator

423: Down Press

424: Feeding parts

50: Test device

51: Test seat

52: Electronic Components

Figure 1: A schematic diagram of the configuration of a conventional testing device, a pressing device and a pressure sensor.

Figure 2: A schematic diagram of the use of a conventional pressing device and a pressure sensor.

Figure 3: A schematic diagram of the pressure detection unit of the present invention.

Figure 4: Schematic diagram (1) of the use of the pressure detection unit of the present invention.

Figure 5: Schematic diagram (2) of the use of the pressure detection unit of the present invention.

Figure 6: Schematic diagram of the use of the pressure-measuring electronic components of the pressing device of the present invention.

In order to make your examiners have a further understanding of the present invention, a preferred embodiment is given with the accompanying drawings. The device 22, the holder 21 is provided with at least one receiving portion 211, and further, the holder 21 can use the top surface of a panel as the receiving portion, or the receiving space of the hollow seat body as the receiving portion, Both can be used to hold the sensor 22. In this embodiment, the holder 21 is an open hollow base, and the receiving space is used as the holding portion 211 to hold the sensor 22, and The bearing 21 is provided with a limiting member 212 on the peripheral side of the bearing portion 211 for vertical displacement by the limiting sensor 22. Further, the limiting member 212 can be a vertical element or a side plate, such as the bearing 21 With the first surface (such as the top surface) of the panel as the receiving part, a plurality of vertical elements (such as limit posts) can be installed on the panel, and are arranged and limited to the peripheral side of the sensor 22, so as to In order to avoid the sensor 22 from tilting and swaying, for example, the holder 21 uses the accommodating space of the hollow base body as the accommodating part, then the side plate around the accommodating space can be used as the limiting member to limit the sensor 22, The relative spacing dimension of the plurality of limiting members 212 is for the sensor 22 to be placed in the receiving portion 211 and maintained in a vertical state, so the quantity and type of the limiting members 212 are determined according to the design requirements of the bearing seat 21 . There are differences, which are not limited to the various types disclosed in the present invention; in this embodiment, the bearing 21 uses the surrounding side plates of the bearing portion 211 as the limiting members 212, and a plurality of limiting members 212 are used. The inner surface is in contact with the outer ring surface of the contact sensor 22, so that the limit sensor 22 maintains a vertical state and moves in displacement; the sensor 22 is assembled on the bearing portion 211 of the bearing seat 21 and is placed One side is provided with a pressure bearing surface 221 for receiving downward pressure, and a second surface is provided with a sensing element 222 for sensing the downward pressure. The pressure bearing surface 221 can be a flat surface, a concave surface or a convex surface, and its shape is for the downward pressure The components (not shown in the figure) can be in surface contact, which is not limited to the types disclosed in the present invention. In this embodiment, the pressure-bearing surface 221 of the sensor 22 is a plane to provide a relatively The large-sized pressure-bearing area (that is, the pressure-bearing area of the pressure-bearing surface 221 is larger than the crimping area of the bottom end of the pressing member), and faces upwards to bear the downward pressure, and the sensing member 222 faces downwards and abuts against it. The bottom surface of the bearing portion 211 is used to sense the pressure under the pressing piece. In addition, the outer ring surface of the sensor 22 is attached to the limiting member 212 of the bearing seat 21, and the limiting member 212 is limited to prevent The yaw action causes the sensor 22 to vertically displace in the receiving portion 211 .

Please refer to FIG. 4 , the pressure detecting unit 20 of the present invention is applied to the pressing force detecting operation of the pressing device of the electronic component operation equipment. The operating equipment includes a machine table 30 , a pressing device 40 and a pressure detecting unit 20 . and a central control device (not shown in the figure). In this embodiment, the operation equipment is an electronic component testing equipment, and further includes a testing device 50. The testing device 50 is assembled on the machine table 30 and is provided with at least one A test seat 51 for testing electronic components, the pressing device 40 is assembled on the machine table 30, and has at least a lower pressing part for pressing the workpiece to be operated (such as an electronic component). In this embodiment, the pressing device 40 is a A floater 42 is located above the testing device 50 and below a moving arm 41 . The floater 42 includes a main body 421 , an actuating part 422 , a pressing part 423 and a pressing part 424 , and an actuating part 424 is assembled inside the main body 421 A pressure-feeding member 424 is arranged above the actuating member 422. The pressure-feeding member 424 pushes the actuating member 422 to move downward in the Z-axis direction. The pressing member 423, the pressure detection unit 20 is disposed below the pressing device 40, and is provided with a bearing 21 and a sensor 22 to detect the pressure under the pressing member 423. In this embodiment, The bearing seat 21 of the pressure detection unit 20 is straddling the test seat 51 of the testing device 50 and is located under the pressing piece 4 of the pressing device 40 Below 23 , the pressure-bearing surface 221 of the sensor 22 is positioned relative to the lower pressing member 423 . The central control device is used to control and integrate the actions of each device to perform automated operations and achieve practical benefits of improving operational efficiency.

Please refer to FIG. 5 , when detecting the lower pressure of the pressing device 40 , the pressing device 40 drives the floater 42 to move downward in the Z direction with the moving arm 41 , so that the lower pressing member 423 of the floater 42 is pressed against Since the pressure-bearing surface 221 of the sensor 22 of the pressure detection unit 20 is a flat surface and has a larger contact pressure-bearing area, the lower pressing member 423 can be used for positive vertical pressure-contact sensing. When the pressure-bearing surface 221 of the device 22 is in surface contact with the pressure-bearing surface 221, the lower-pressure piece 423 can evenly bear the reaction force of the pressure-bearing surface 221, and can float horizontally and upwardly to buffer displacement without tilting. The sensor 22 is biased and pressed, so that the pressure-bearing surface 221 of the sensor 22 is subjected to the vertical positive downward force of the pressing member 423, and no lateral component force is generated, because the outer ring surface of the sensor 22 is The stopper 21 is attached to the limiting member 212 of the socket 21 . The socket 21 uses the limiting member 212 to prevent the sensor 22 from swinging after being pressed, so that the sensor 22 is held in the bearing portion 211 of the socket 21 . Vertical downward displacement, however, since the sensing element 222 of the sensor 22 is abutted against the bottom surface of the receiving portion 211, when the sensor 22 is displaced downward, the sensing element 222 of the sensor 22 can accurately sense the pressing element The lower pressure of 423 is used to determine whether the lower pressure of the lower pressing member 423 conforms to the preset lower pressure, so as to achieve the practical benefit of improving the accuracy of the detection of the lower pressure.

Please refer to FIG. 6 , after the down pressure detection operation is completed, if the pressure detection unit accurately detects that the pressure below the pressing device 40 conforms to the preset down pressure, the staff can remove the pressure detection unit from the testing device 50 The upper part of the test seat 51 is removed, so that the pressing piece 423 of the pressing device 40 can formally perform the pressing operation on the electronic components 52 in the test seat 51. Since the pressure under the pressing device 40 is the preset downward pressure, The pressing member 423 is prevented from being damaged by pressure on the electronic components 52 , so as to achieve practical benefits of improving the quality of the pressing operation and improving the yield of the electronic components.

20: Pressure detection unit

21: Bearing

211: Bearing Department

212: Limit parts

22: Sensor

221: Pressure bearing surface

222: Sensing piece

Claims (9)

A pressure detection unit, comprising: a bearing seat: at least one bearing part is provided, and a limit part is arranged on the peripheral side of the bearing part; a sensor: is assembled on the bearing part of the bearing seat and receives The limiting member can only move up and down. The sensor is provided with a pressure-bearing surface on the first surface for receiving the downward pressure, and a sensor on the second surface for sensing the downward pressure. The bearing portion abuts against the bearing seat, so that the bearing surface can bear the positive downward pressure. According to the pressure detection unit described in item 1 of the scope of the patent application, wherein, the first surface of the at least one panel is used as the receiving portion, or the accommodating space of the hollow seat is used as the receiving portion. According to the pressure detection unit described in item 1 of the scope of the patent application, the limiting member of the bearing seat is a vertical element or a side plate. According to the pressure detection unit described in item 1 of the scope of the patent application, the bearing seat is provided with a plurality of limiting parts, and the relative distance between the plurality of limiting parts is for the sensor to be placed in the bearing. position and keep it vertical. According to the pressure detection unit described in item 1 of the claimed scope, the inner surface of the limiting member of the bearing is abutted against the outer annular surface of the sensor. According to the pressure detection unit described in claim 1, the pressure bearing surface of the sensor is a flat surface, a concave surface or a convex surface. According to the pressure detection unit of claim 1, wherein the pressure bearing surface of the sensor is in surface contact with the lower pressure piece. According to the pressure detection unit described in item 1 of the claimed scope, the pressure-bearing area of the pressure-bearing surface of the sensor is larger than the pressure-contact area of the lower pressure piece. A working equipment using a pressure detection unit, comprising: a machine; a pressing device: assembled on the machine, and is provided with at least a downward pressure on the workpiece to be operated. at least one pressure detection unit according to item 1 of the scope of the patent application: used to detect the pressing force of the pressing member under the pressing device; central control device: used to control and integrate the actions of each device, perform automated tasks.

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