TW202046586A - socket - Google Patents

Abstract

Provided is a socket wherein it is possible to easily change the height of a member used to apply pressure on an item subject to inspection. This socket is provided with: a base; a to-be-inspected item pressing member which has a first to-be-pressed surface and a second to-be-pressed surface that is located closer to the base than the first to-be-pressed surface is; and a cam which presses the to-be-inspected item pressing member toward the base. The cam has: a first pressing surface that comes into contact with the first to-be-pressed surface when the cam is rotated about a rotational axis thereof by a first angular degree from a reference position; and a second pressing surface that comes into contact with the second to-be-pressed surface when the cam is rotated about the rotational axis by a second angular degree from the reference position.

Description

socket

The invention relates to a socket for inspecting electronic parts.

In the manufacturing process of electronic parts such as integrated circuits (IC), various inspection devices are used to inspect electronic parts. Among these inspection apparatuses, there are inspection apparatuses that respectively apply predetermined pressures to a plurality of types of inspected objects having mutually different thicknesses. For example, Patent Document 1 discloses an inspection device that adjusts the height of a member for applying pressure to an inspected body by turning a handle arm connected to an eccentric cam. [Prior Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. 2010-15894

[The problem to be solved by the invention] However, when the inspection device of Patent Document 1 is used to inspect the subject, since the eccentric cam is in the shape of a round roller, it is necessary to fix the handle arm at this position after rotating the handle arm by a specific angle. Therefore, the inspection device of Patent Document 1 needs to fix the handle arm every time in order to switch to a plurality of heights for inspection, so it can be said that it is difficult to switch the height easily.

Therefore, the present invention provides a socket that can easily switch the height of the member for applying pressure to the subject. [Means to solve the problem]

The socket of the present invention includes: a base; an inspected body pressing member having a first pressed surface and a second pressed surface located closer to the base than the first pressed surface; and a cam for holding the The inspection body pressing member presses against the base, and the cam has: a first pressing surface that contacts the first pressed surface when the cam rotates a first angle around the rotation axis from the reference posture; and a second pressing When the cam rotates a second angle around the rotation axis from the reference position, it contacts the second pressed surface. [Effects of the invention]

According to the present invention, it is possible to provide a socket that can easily switch the height of the member for applying pressure to the subject.

Hereinafter, description will be made with reference to the drawings of the embodiment. In each figure, for the convenience of description, a three-dimensional orthogonal coordinate system including X axis, Y axis and Z axis is drawn. The positive direction of the X axis is defined as the +X direction, the positive direction of the Y axis is defined as the +Y direction, and the positive direction of the Z axis is defined as the +Z direction (upward direction).

Fig. 1 is a perspective view of a socket 1 according to an embodiment of the present invention. The details will be shown in the following description, but it shows the socket 1 in a pressurized state in which pressure is applied to a subject. The socket 1 is arranged on the wiring board 100.

The socket 1 includes a base 2, a cover 3, a latch portion 4, an object pressing member 5 (for example, a heat sink that also serves as a heat dissipation member), a cam 6, a handle 7, a pressure plate 8, and the like.

The base 2 has a main body part 21 and a mounting part 22 (refer to FIG. 5). The main body 21 supports the cover 3 and the latch 4. In addition, the main body 21 is a frame member constituting the main body of the base 2.

The mounting portion 22 is a member for mounting the object to be inspected, and is surrounded by the main body 21 (refer to FIG. 5 ). A plurality of contact pins (not shown) are arranged on the mounting portion 22. The contact pins are in contact with connection terminals (not shown) arranged on the wiring board 100.

The cover 3 is a member that covers the socket 1 from above. The cover 3 has a receiving hole 3 a (refer to FIG. 8) for receiving the second spring 132 described below, and an engaged portion 3 b (refer to FIG. 7) into which the latch portion 4 is engaged. The cover 3 is rotatably fixed to the +Y direction side of the main body 21 via the spindle 111. The operator of the socket 1 can open and close the cover 3 by rotating the cover 3 around the main shaft 111. Furthermore, the cover 3 may not necessarily be rotatably fixed to the main body 21. For example, the cover 3 may be configured to be detachable from the main body 21.

The latch part 4 has an engagement part 4a, and is rotatably fixed to the -Y direction side of the main body part 21 via the latch shaft 113 (refer FIG. 7). The operator of the socket 1 rotates the latch 4 to engage the engaging portion 4a with the engaged portion 3b, thereby maintaining the closed state of the cover 3.

The test object pressing member 5 is a member for applying pressure from the +Z direction side to the test object placed on the mounting portion 22 during inspection. When pressure is applied to the test object, the connection terminals provided on the test object and the connection terminals of the wiring board 100 are electrically connected via the contact pins of the mounting portion 22. In addition, the inspection object pressing member 5 functions as a heat dissipation member that takes heat from the inspection object under inspection and releases the taken heat to the surroundings to maintain the inspection object at a predetermined temperature.

As shown in FIG. 2 which is a perspective view of the object pressing member 5, the object pressing member 5 has a hard stop portion 51, a pressing portion 52 (refer to FIG. 5), a flange portion 53, and the like. The hard stop 51 is a portion pressed by the cam 6 due to the rotation of the cam 6. The hard stop 51 will be described in detail below. The pressurizing part 52 is a part that comes into contact with the subject when pressure is applied to the subject.

Refer to Figure 1 again. The two cams 6 are arranged one on each side of the object pressing member 5. The cam 6 is a member that rotates around the rotation axis O and presses the object pressing member 5 against the mounting portion 22. As shown in FIG. 3 which is a front view of the cam 6, the cam 6 has a first pressing surface 61, a second pressing surface 62, a non-pressing surface 63, an escape surface 64, and the like.

The cam 6 has a plurality of side surfaces parallel to the rotation axis O, that is, has a first pressing surface 61, a second pressing surface 62, a non-pressing surface 63, an escape surface 64, and the like. Furthermore, the rotation axis O is parallel to the X axis direction.

The first pressing surface 61 is one side surface of the cam 6 and is located on the −Y direction side with respect to the rotation axis O. The second pressing surface 62 is located on the +Y direction side with respect to the rotation axis O, and is located closer to the −X direction side than the first pressing surface 61. The first pressing surface 61 and the second pressing surface 62 are parallel to each other.

The non-pressing surface 63 is a side surface of the cam 6 that is different from the first pressing surface 61 and the second pressing surface 62 (the bottom surface of the cam 6 in FIG. 3 ). The non-pressing surface 63 is perpendicular to the first pressing surface 61 and the second pressing surface 62.

The curved surface 63 a connects the first pressing surface 61 and the non-pressing surface 63, and the curved surface 63 b connects the second pressing surface 62 and the non-pressing surface 63.

The escape surface 64 is a side surface of the cam 6 that is located on the +Y direction side with respect to the rotation axis O and is located on the +X direction side than the second pressing surface 62. Although not shown in FIG. 3, the cam 6 has an escape surface 65 (refer to FIG. 5). The escape surface 65 is located on the -Y direction side with respect to the rotation axis O, and is located in the -X direction than the first pressing surface 61 side.

The cam 6 has a shaft hole 66 formed along the X axis. The shaft hole 66 is a hole through which the main shaft 112 (FIG. 5) is inserted. Here, the distance x1 from the rotation axis O to the first pressing surface 61 and the distance x2 from the rotation axis O to the second pressing surface 62 are equal to each other. On the other hand, the distance x3 from the rotation axis O to the non-pressing surface 63 is shorter than the distance x1 and the distance x2.

As will be described in detail below, in the state where the cam 6 takes the posture shown in FIG. 3, that is, the state where the non-pressing surface 63 is downward, the cam 6 does not press the inspected body pressing member 5, so the inspected body pressing member 5 is not aligned. The subject is pressurized. Therefore, this state is described below as a non-pressurized state. In the non-pressurized state, the handle 7 is in an upright state with respect to the placing portion 22 (refer to FIGS. 10 and 12).

Refer to Figure 1 again. The handle 7 is connected to the two cams 6 and functions as a gripper when the cams 6 are rotated.

The pressure plate 8 is a member that is supported by the cover 3 and supports the object pressing member 5 and the cam 6. The pressure plate 8 is a member that functions as a safety device of the socket 1.

As shown in FIG. 4 which is a perspective view of the pressure plate 8, the pressure plate 8 has two cam holding portions 81, a plurality of first spring arrangement portions 82, a plurality of second spring arrangement portions 83, and the like.

Each cam holding part 81 has two protrusion parts 81a, 81b. The protrusion 81a and the protrusion 81b are parallel to each other, and protrude in the +Z direction from the upper surface 8a of the pressure plate 8. A cam 6 is inserted between the protrusion 81a and the protrusion 81b. In addition, a shaft hole through which the main shaft 112 is inserted is formed along the X-axis in the protruding portion 81a and the protruding portion 81b. In addition, in the cam holding portion 81, a hard stop insertion hole 81c through which the hard stop portion 51 is inserted is formed along the Z axis.

The first spring 131 (see FIG. 7) is arranged in the first spring arrangement portion 82, and the second spring 132 (see FIG. 8) is arranged in the second spring arrangement portion 83. In addition, in the first spring arrangement portion 82 and the second spring arrangement portion 83, a guide pin through hole 82a (refer to FIG. 7) and a guide pin through hole 83a are formed along the Z axis, respectively.

Fig. 5 is a diagram showing a part of the A-A cross-sectional view shown in Fig. 1. In addition, Fig. 6 is a B-B cross-sectional view shown in Fig. 5. 5 and 6 show a state (pressurized state) in which a relatively thick object S1 is placed on the placement portion 22 and pressure is applied to the object S1.

The hard stop 51 is inserted to the hard stop insertion hole 81c. The hard stop portion 51 has a first pressed surface 51a and a second pressed surface 51b. The second pressed surface 51b is located closer to the placing portion 22 than the first pressed surface 51a. In other words, the second pressed surface 51b is located closer to the -Z direction side than the first pressed surface 51a. In addition, since the first pressed surface 51a and the second pressed surface 51b have a stepped shape, the distance from the first pressed surface 51a to the second pressed surface 51b is g1. Both the first pressed surface 51a and the second pressed surface 51b are flat surfaces.

The cam 6 is arranged between the protruding portion 81 a and the protruding portion 81 b of the cam holding portion 81, and is rotatably attached to the pressure plate 8 via the main shaft 112. When the cam 6 rotates by a first angle around the main shaft 112 from the non-pressurized state, the first pressing surface 61 contacts the first pressed surface 51 a and presses the object pressing member 5. When the cam 6 rotates a second angle around the main shaft 112 from the non-pressurized state, the second pressing surface 62 contacts the second pressed surface 51 b and presses the object pressing member 5. In this embodiment, the value of the second angle is the negative value of the first angle.

In detail, when the cam 6 rotates 90 degrees clockwise around the main shaft 112 from the non-pressurized state, the second pressing surface 62 contacts the second pressed surface 51 b to press the object pressing member 5. The state at this time is shown in FIG. 5. In addition, as described below with reference to FIG. 9, when the cam 6 rotates 90 degrees counterclockwise around the main shaft 112 from the non-pressurized state, the first pressing surface 61 contacts the first pressed surface 51a to press the inspected body pressing member 5 . In this way, when the state of the cam 6 shown in FIG. 3 is set to the rotation angle of 0 degrees, the first angle is 90 degrees counterclockwise, and the second angle is 90 degrees clockwise (counterclockwise -90 degrees). Hereinafter, the state where the cam 6 rotates 90 degrees counterclockwise around the main shaft 112 from the non-pressurized state is referred to as the "0-degree state", and the state of the cam 6 in the non-pressurized state is referred to as the "90-degree state". In addition, the state where the cam 6 rotates 90 degrees clockwise around the main shaft 112 from the non-pressurized state is referred to as a "180 degree state".

The avoidance surface 64 is adjacent to the second pressing surface 62 and forms a stepped shape together with the second pressing surface 62. Here, the distance from the second pressing surface 62 to the avoiding surface 64 is greater than g1. Therefore, when the second pressing surface 62 contacts the second pressed surface 51b, a gap appears between the avoiding surface 64 and the second pressed surface 51b. The relief surface 65 is adjacent to the first pressing surface 61 and forms a stepped shape together with the first pressing surface 61.

In addition, the orthographic projection of the first pressing surface 61 onto the base 2 is located on the upper surface of the portion 21a shown in FIG. 5. The orthographic projection of the second pressing surface 62 to the base 2 is located on the upper surface of the portion 21b shown in FIG. 5. Here, the first pressing surface 61 and the second pressing surface 62 are offset in the X-axis direction of the cam 6. That is, the cam 6 has a two-stage structure. Therefore, the orthographic projection of the first pressing surface 61 onto the base 2 and the orthographic projection of the second pressing surface 62 onto the base 2 do not overlap with each other. The orthographic projection of the first pressing surface 61 appears on the +X direction side with respect to the orthographic projection of the second pressing surface 62. The relationship that the orthographic projection of the first pressing surface 61 and the orthographic projection of the second pressing surface 62 do not overlap each other is maintained regardless of the rotation angle around the rotation axis O.

In the pressurized state, the second pressing surface 62 contacts the second pressed surface 51b. This contact is the contact between the planes. Therefore, after the operator of the socket 1 operates the handle 7 so as to be in the pressurized state shown in FIGS. 5 and 6, there is no need to perform an operation to fix the handle 7 in order to prevent returning to the non-pressurized state. In addition, there is no need to provide a mechanism for preventing the rotation of the cam 6 in the socket 1.

Fig. 7 is a cross-sectional view of C-C shown in Fig. 5.

A guide pin 121 is fixed to the flange 53. The guide pin 121 penetrates the guide pin through hole 82a formed in the pressure plate 8 along the Z-axis direction. In the first spring arranging portion 82, a first spring 131 as a compression spring is arranged so as to surround the guide pin 121. The first spring 131 is arranged between the upper surface of the first spring arrangement portion 82 and the lower surface of the head of the guide pin 121 in a compressed state. Therefore, the first spring 131 exerts a resilience force so as to press the upper surface of the flange portion 53 of the object pressing member 5 against the lower surface of the pressure plate 8. In other words, the object pressing member 5 is supported by the pressure plate 8 so as to be suspended via the first spring 131 and the guide pin 121.

Fig. 8 is a cross-sectional view of D-D shown in Fig. 5.

A guide pin 122 is fixed to the cover 3. The guide pin 122 penetrates the guide pin through hole 83 a formed in the pressure plate 8. The pressure plate 8 is supported by the cover 3 so as to be suspended via the guide pin 122. A second spring 132 as a compression spring is arranged between the cover 3 and the pressure plate 8. In detail, the second spring 132 is arranged in the second spring arrangement portion 83 so as to surround the guide pin 122 and so as to be accommodated in the receiving hole 3a. The second spring 132 is arranged in a compressed state between the upper surface of the second spring arrangement portion 83 and the upper surface of the receiving hole 3a. Therefore, the second spring 132 exerts a resilient force in such a manner that the pressure plate 8 is separated from the cover 3. In other words, the second spring 132 presses the pressure plate 8 in a direction away from the cover 3. The pressure plate 8 is relatively movable in the Z-axis direction with respect to the cover 3.

Fig. 9 is a diagram showing a part of a longitudinal sectional view of the socket 1 in another pressurized state different from the pressurized state shown in Figs. 5 and 6. Specifically, FIG. 9 shows the operation of tilting the handle 7 to the opposite side (-Y direction side) from the state shown in FIG. 1, and the cam 6 rotates 90 degrees counterclockwise around the main shaft 112 from the non-pressurized state. A part of the cross-sectional view corresponding to the AA cross-sectional view of FIG. 1 in the state (0 degree state).

FIG. 9 shows a state (pressurized state) in which a test object S2 thinner than the test object S1 is placed on the placing section 22 and pressure is applied to the test object S2. In the state shown in FIG. 9, the first pressed surface 51 a is in contact with the first pressed surface 61. The first pressed surface 51a is further away from the placing portion 22 by g1 than the second pressed surface 51b. When the cam 6 rotates counterclockwise around the main shaft 112 from the non-pressurized state (0 degree state), compared with the case where the cam 6 rotates clockwise around the main shaft 112 from the non-pressurized state (180 degree state) , The moving distance g1 of the object pressing member 5 from the non-pressurized state is large. Therefore, when the socket 1 tilts the handle 7 from the non-pressurized state to the +Y direction side, the inspection of the relatively thick object S1 can be performed, and the handle 7 is moved from the non-pressurized state to the -Y direction side. In the case of falling, inspection of the test object S2 that is thinner by g1 than the test object S1 can be performed.

In the state shown in FIG. 9, that is, in the state where the cam 6 rotates 90 degrees counterclockwise around the main shaft 112 from the non-pressurized state (the state at 0 degrees), there is no need to perform the operation of fixing the handle 7.

The cam 6 has the following shape. That is, the portion on the +X direction side when the center in the X-axis direction is the boundary has the same shape as the portion on the -X direction side. Therefore, even if the cam 6 is arranged so that the second pressing surface 62 is located on the +X direction side with respect to the first pressing surface 61, the cam 6 has the same posture as that shown in FIGS. 1 and 5. Therefore, there is no need to pay attention to the orientation of the cam 6 when connecting the cam 6 to the handle 7, so that the manufacture of the socket 1 becomes easy. Here, the part on the +X direction side and the part on the rear side of -X may not necessarily have the same shape, as long as the following (1) to (4) are satisfied. (1) The distance x1 is equal to the distance x2. (2) The orthographic projection of the first pressing surface 61 onto the base 2 and the orthographic projection of the second pressing surface 62 onto the base 2 do not overlap each other. (3) The distance from the first pressing surface 61 to the avoiding surface 65 is greater than g1. (4) The distance from the second pressing surface 62 to the avoiding surface 64 is greater than g1.

Next, the pressurizing operation of the socket 1 will be described. First, using FIGS. 10 and 11, the pressing operation for the relatively thick object S1 having the thickness d1 will be described.

Fig. 10 is a schematic view of the socket 1 according to the embodiment of the present invention in a state before pressure is applied to a relatively thick object S1. That is, FIG. 10 shows the socket 1 in a non-pressurized state. In the non-pressurized state, the handle 7 stands upright with respect to the placing portion 22.

In this state, the non-pressing surface 63 of the cam 6 contacts the first pressed surface 51a. In addition, the first spring 131 presses the object pressing member 5 in the direction (+Z direction) approaching the cover 3. In addition, the second spring 132 presses the pressure plate 8 in a direction away from the cover 3 (the −Z direction). Therefore, the pressure plate 8 is positioned in a state where the lower surface of the pressure plate 8 is pressed against the lower surface of the head of the guide pin 122.

If the operator tilts the handle 7 to the +Y direction side, the cam 6 rotates clockwise around the main shaft 112. Then, the curved surface 63b contacts the second pressed surface 51b. At this time, the pressure plate 8 does not move. In addition, the second pressed surface 51b is pressed by the curved surface 63b, and the pressing portion 52 moves in the −Z direction and gradually approaches the placing portion 22. As the pressing portion 52 approaches the placing portion 22, the first spring 131 gradually contracts.

If the handle 7 is further tilted to the +Y direction side and the rotation angle of the cam 6 from the non-pressurized state reaches 90 degrees (the cam 6 becomes the state of 180 degrees), as shown in FIG. 11, the second pressing surface 62 contacts the second The pressed surface 51b. In addition, the pressurizing part 52 contacts the inspection object S1 and applies pressure to the inspection object S1. Therefore, the connection terminals of the inspection object S1 and the connection terminals of the wiring board 100 are electrically connected via the contact pins of the mounting portion 22, and the inspection of the inspection object S1 can be performed.

Next, using FIGS. 12 and 13, the pressing operation for the relatively thin object S2 having a thickness d2 (d2<d1) which is thinner than the object S1 (thickness d1) by g1 will be described.

FIG. 12 is a schematic diagram of the socket 1 according to the embodiment of the present invention in a state before pressure is applied to the relatively thin object S2. The only difference from the state shown in FIG. 10 is that the object S2 is placed on the placement portion 22, and there is no difference in the states of the cam 6, the handle 7, the first spring 131, and the second spring 132.

When pressure is applied to the inspection object S2, since the inspection object S2 is thinner than the inspection object S1, it is necessary to move the pressing portion 52 closer to the placing portion 22 (the −Z direction side). Therefore, the operator tilts the handle 7 from the non-pressurized state to the -Y direction side.

If the operator tilts the handle 7 to the −Y direction side, the cam 6 rotates counterclockwise around the main shaft 112. Then, the curved surface 63a contacts the first pressed surface 51a. At this time, the pressure plate 8 does not move. In addition, the first pressed surface 51a is pressed by the curved surface 63a, and the pressing portion 52 moves in the −Z direction and gradually approaches the placing portion 22. As the pressing portion 52 approaches the placing portion 22, the first spring 131 gradually contracts.

If the handle 7 is further tilted to the -Y direction side and the rotation angle of the cam 6 from the non-pressurized state reaches 90 degrees (the cam 6 becomes 0 degrees), as shown in FIG. 13, the first pressing surface 61 contacts the first The pressed surface 51a. In addition, when the cam 6 rotates 90 degrees counterclockwise around the main shaft 112 (the state where the cam 6 becomes 0 degrees), the first pressed surface located on the side farther from the placing portion 22 than the second pressed surface 51b is pressed The surface 51a is pressed by the first pressing surface 61. Therefore, the moving distance of the inspection object pressing member 5 is longer by g1 than the moving distance of the inspection object pressing member 5 when the cam 6 rotates 90 degrees clockwise around the main shaft 112 (the cam 6 is in a 180-degree state). Therefore, as shown in FIG. 13, the pressurizing part 52 contacts the test object S2 which is thinner by g1 than the test object S1, and applies pressure to the test object S2. Therefore, the connection terminals of the inspection object S2 and the connection terminals of the wiring board 100 are electrically connected via the contact pins of the mounting portion 22, and the inspection of the inspection object S2 can be performed.

As mentioned above, when the operator inspects the object S1, the handle 7 needs to be tilted to the +Y direction side as described above, but when the operator mistakenly tilts the handle 7 to the -Y direction side , Socket 1 works as follows.

As shown in FIG. 10, if the operator tilts the handle 7 to the -Y direction side from the non-pressurized state with the object S1 placed on the placement portion 22, the cam 6 rotates counterclockwise around the main shaft 112 . Then, the curved surface 63a contacts the first pressed surface 51a. Then, the pressing portion 52 moves in the −Z direction and gradually approaches the placing portion 22. In addition, as the pressing portion 52 approaches the placing portion 22, the first spring 131 gradually contracts.

Finally, as shown in FIG. 14, the pressing part 52 contacts the object S1 to be inspected.

If the handle 7 is further tilted to the −Y direction side, the object pressing member 5 cannot be pressed down, and therefore the cam 6 itself starts to move in the +Z direction. The cam 6 is mounted on the pressure plate 8, so as the cam 6 moves, the pressure plate 8 also moves in the +Z direction. At this time, the second spring 132 clamped between the pressure plate 8 and the cover 3 gradually contracts. Such actions of the parts of the socket 1 continue until the handle 7 is tilted 90 degrees to the −Y direction side (until it becomes the state shown in FIG. 15 ).

During this period, the object pressing member 5 does not move. In addition, the force applied to the subject S1 is at most the combined force of the resilience of the plurality of second springs 132. Therefore, by setting the natural length and elastic coefficient of the second spring 132 to appropriate values, it is possible to prevent the subject S1 from being damaged by applying excessive force (pressure) to the subject S1. That is, the pressure plate 8 and the second spring 132 also function as a safety device.

As described above, according to this embodiment, by rotating the cam 6 having multiple pressing surfaces, the distance between the pressing portion 52 and the placing portion 22 can be adjusted, so that a single device can be used to inspect multiple thicknesses. Body check.

Since the pressing surface of the cam 6 and the pressed surface of the hard stop portion 51 are both flat surfaces, the contact state can be stably maintained as compared with the contact between the curved surface and the flat surface or the curved surface. Therefore, there is no need to perform work for fixing the rotation of the cam 6 in order to maintain this contact state.

Therefore, it is possible to easily switch the height of the member for applying pressure to the test object (the test object pressing member 5) from the mounting portion 22.

The cam 6 has a two-stage structure in which the first pressing surface 61 and the second pressing surface 62 are offset from each other in the X-axis direction. In addition, the distance x1 and the distance x2 are equal to each other. Furthermore, the hard stop portion 51 of the test object pressing member 5 has a first pressed surface 51a and a second pressed surface 51b whose distances from the mounting portion 22 are different from each other. Therefore, the distance between the first pressed surface 51a and the second pressed surface 51b of the hard stop portion 51 corresponds to the difference in the moving distance of the object pressing member 5 in the −Z direction corresponding to the rotation direction of the cam 6. Therefore, if the distance between the first pressed surface 51a and the second pressed surface 51b is set to a predetermined distance, it is not necessary to set the distance x1 and the distance x2 to be different from each other when manufacturing the cam 6 The thickness corresponds to the length and the secondary processing is performed. Therefore, the manufacture of the cam 6 becomes easy, and the secondary processing cost can be reduced. Specifically, the cam 6 can be manufactured as a molded product, and the manufacturing cost can be reduced.

In addition, the cam 6 has a two-stage structure, and the pressed surface of the hard stop portion 51 in contact with the pressing surface of the cam 6 is switched depending on the direction in which the cam 6 is rotated. Therefore, early wear of the pressed surface can be prevented.

Furthermore, the moving distance of the object pressing member 5 can be changed according to the direction in which the cam 6 is rotated. Therefore, the operator can use a single socket 1 to perform two operations with different thicknesses by simply changing the tilting direction of the handle 7 Examination of the subject.

In addition, when the operator erroneously performs an action to pressurize a thin object when inspecting a thick object, after the object pressing member 5 contacts the object, the cam 6 and The pressure plate 8 moves in a direction (+Z direction) away from the placing portion 22. Therefore, it is possible to prevent damage to the test object or the socket 1 due to excessive pressure on the test object.

The socket 1 according to the embodiment of the present invention has been described above, but the socket 1 may be modified as described below.

The positional relationship of the first pressing surface 61, the second pressing surface 62, and the non-pressing surface 63 of the cam 6 may not be the relationship shown in FIG. 3, for example, the cam 6 may have a shape as shown in FIG. In FIG. 16, the second pressing surface 62 is parallel to the non-pressing surface 63. In addition, it is located closer to the +Z direction side than the rotation axis O, and closer to the −X direction side than the avoidance surface 64. On the other hand, the first pressing surface 61 is perpendicular to the second pressing surface 62 and the non-pressing surface 63. When the cam 6 has the shape shown in FIG. 16, if it rotates clockwise around the rotation axis O, the first pressing surface 61 contacts the first pressed surface 51a, and if the cam 6 further rotates clockwise around the rotation axis O , The second pressing surface 62 contacts the second pressing surface 62. Regarding the distance x1 from the rotation axis O to the first pressing surface 61, the distance x2 from the rotation axis O to the second pressing surface 62, and the distance x3 from the rotation axis O to the non-pressing surface 63, there is x3<x1 <x2, and x1+2g1<x2.

In this case, the state where the handle 7 is tilted to the -Y direction side (here, the state where the cam 6 is at 0 degrees) becomes the non-pressurized state, and the state where the handle 7 is upright with respect to the placing portion 22 becomes The state of the inspection subject S1 is inspected, and the state where the handle 7 is tilted to the +Y direction side becomes a state for inspecting the inspection subject S2. In other words, the state where the cam 6 is rotated 90 degrees clockwise from the non-pressurized state (the state where the cam 6 is at 0 degrees) around the rotation axis O (the state where the cam 6 is at 90 degrees) is a state for inspecting the object S1. In addition, from this state, the state where the rotation axis O is further rotated by 90 degrees clockwise (the state where the cam 6 is at 180 degrees) is a state for inspecting the subject S2. In this way, by setting the movement distance of the object pressing member 5 to change according to the size of the angle by which the cam 6 is rotated in one direction, the operator will not perform erroneous operations such as mistaking the tilting direction of the handle 7.

In addition, in the cam 6, the distance x1 from the rotation axis O to the first pressing surface 61 and the distance x2 from the rotation axis O to the second pressing surface 62 may have different lengths. The distance from the second pressing surface 62 to the second pressed surface 51b and the distance from the first pressed surface 51a to the second pressed surface 51b may be larger than g1.

In addition, the object pressing member 5 may have three or more pressed surfaces, and the cam 6 may have three or more pressing surfaces. For example, the inspected body pressing member 5 may further have a third pressed surface located closer to the base 2 (-Z direction) than the second pressed surface 51b, and the cam 6 may further have a predetermined rotation around the rotation axis O The third pressing surface that contacts the third pressed surface when angled. By setting in this way, a single socket 1 can be used to inspect objects with a greater variety of thicknesses than two types.

Furthermore, the cam 6 may not necessarily have the shape shown in FIGS. 3, 5, 16 and the like. For example, the cam 6 may not have the avoidance surface 65. That is, the first pressing surface 61 may be formed from the vicinity of the end on the +X direction side of the cam 6 to the vicinity of the end on the −X direction side of the cam 6.

In addition, the orthographic projection of the first pressing surface 61 onto the base 2 and the orthographic projection of the second pressing surface 62 onto the base 2 may overlap each other, and the first pressing surface 61 and the second pressing surface 62 may be formed on the cam 6. For example, the dimension in the X-axis direction of the escape surface 65 may be shorter than the dimension in the X-axis direction of the escape surface 65 shown in FIGS. 5 and 10, and the dimension in the X-axis direction of the first pressing surface 61 may be shorter than that in FIG. And the dimension of the X-axis direction of the 1st pressing surface 61 shown in FIG. 10 is longer. In other words, the cam 6 may be configured such that the second pressing surface 62 is located on the +Y direction side and the first pressing surface 61 is located on the −Y direction side near the center position of the cam 6 in the X axis direction. In the case of using the cam 6 of this shape, it is sufficient to use the object pressing member 5 having the hard stop 51 shown in FIGS. 2 and 5.

<Notes> In addition, each of the above-mentioned embodiments only shows an example of the implementation of the present invention, and the technical scope of the present invention is not limitedly interpreted by these embodiments. That is, the present invention can be implemented in various forms without departing from the gist or main characteristics thereof.

This application claims priority based on the Japanese patent application 2019-040391 filed on March 6, 2019. The contents described in these application specifications and drawings are all cited in this application specification. [Industrial availability]

The present invention can be suitably used in a socket for inspecting electronic parts.

1: socket 2: base 3: cover 3a: Containment hole 3b: The locked part 4: Latch part 4a: Snap part 5: Pressing member of the inspected body 6: cam 7: handle 8: Pressure plate 8a: upper surface 21: Body part 21a, 21b: part 22: Placement Department 51: Hard Stop 51a: The first pressed surface 51b: The second pressed surface 52: Pressure section 53: convex edge 61: The first pressing surface 62: second pressing surface 63: Non-pressing surface 63a, 63b: curved surface 64, 65: Avoidance 66: shaft hole 81: Cam holding part 81a, 81b: protrusion 81c: Hard stop wearing jack 82: The first spring arrangement part 82a, 83a: guide pin through hole 83: The second spring arrangement part 100: Wiring board 111, 112: Spindle 113: Latch shaft 121, 122: guide pin 131: first spring 132: second spring d1, d2: thickness S1, S2: Subject O: Rotation axis x1, x2, x3: distance

Fig. 1 is a perspective view of a socket according to an embodiment of the present invention. Fig. 2 is a perspective view of an object pressing member according to the embodiment of the present invention. Fig. 3 is a front view of the cam of the embodiment of the present invention. Fig. 4 is a perspective view of the pressure plate according to the embodiment of the present invention. Fig. 5 is a diagram showing a part of the A-A cross-sectional view shown in Fig. 1. Fig. 6 is a cross-sectional view of B-B shown in Fig. 5. Fig. 7 is a cross-sectional view of C-C shown in Fig. 5. Fig. 8 is a cross-sectional view of D-D shown in Fig. 5. Fig. 9 is a diagram showing a part of a longitudinal sectional view of the socket according to the embodiment of the present invention. Fig. 10 is a schematic view of the socket according to the embodiment of the present invention in a state before pressure is applied to a relatively thick test object. Fig. 11 is a schematic diagram of the socket according to the embodiment of the present invention in a state where pressure is applied to a relatively thick test object. Fig. 12 is a schematic view of the socket according to the embodiment of the present invention in a state before pressure is applied to a relatively thin object. Fig. 13 is a schematic diagram of the socket according to the embodiment of the present invention in a state where pressure is applied to a relatively thin object to be inspected. Fig. 14 is a schematic diagram of the socket of the embodiment of the present invention in a state of being erroneously operated. Fig. 15 is a schematic diagram of the socket according to the embodiment of the present invention in a state where the safety device functions. Fig. 16 is a front view of a cam according to a modification of the present invention.

1: socket

2: base

3: cover

5: Pressing member of the inspected body

6: cam

8: Pressure plate

21: Body part

21a, 21b: part

22: Placement Department

51: Hard Stop

51a: The first pressed surface

51b: The second pressed surface

52: Pressure section

53: convex edge

61: The first pressing surface

62: second pressing surface

64, 65: Avoidance

66: shaft hole

81: Cam holding part

81a, 81b: protrusion

81c: Hard stop wearing jack

100: Wiring board

112: Spindle

S1: Subject

Claims (7)

A socket, including: Base The object pressing member has a first pressed surface and a second pressed surface located closer to the base than the first pressed surface; and A cam to press the inspected body pressing member against the base, and The cam has: a first pressing surface that contacts the first pressed surface when the cam rotates from a reference posture about a rotation axis by a first angle; and a second pressing surface when the cam moves from the reference posture When rotating by a second angle around the rotation axis, contact the second pressed surface. The socket according to claim 1, wherein the distance from the rotation axis to the first pressing surface is equal to the distance from the rotation axis to the second pressing surface. The socket according to claim 1, wherein the value of the second angle is a negative value of the value of the first angle. The socket according to claim 1, wherein the orthographic projection of the first pressing surface to the base has nothing to do with the rotation angle of the cam around the rotation axis, and is different from the orthographic projection of the second pressing surface to the base overlapping. The socket according to claim 1, wherein the cam further has: an escape surface, adjacent to the second pressing surface, and forming a stepped shape together with the second pressing surface, The distance from the second pressing surface to the avoiding surface is greater than the distance from the first pressed surface to the second pressed surface. The socket as described in claim 1, further including: Cover, fixed to the base; A pressure plate capable of moving relative to the cover; and The spring is arranged between the cover and the pressure plate, and presses the pressure plate in a direction away from the cover, The object pressing member and the cam are supported by the pressure plate. The socket according to claim 1, wherein the object pressing member further has: a third pressed surface located closer to the base than the second pressed surface, The cam further has a third pressing surface, which contacts the third pressed surface when the cam rotates a third angle around the rotation axis.

Images