High-precision computer server PCB test fixture

Abstract

The utility model belongs to the technical field of PCB testing equipment, and particularly relates to a high-precision computer server PCB testing jig which comprises a base, a placing table, a supporting device, an extruding device and a reset sensing device, the placing table and the supporting device are both fixedly installed on the plane of the top of the base, a clamping device is arranged on the placing table, and the extruding device is arranged on the clamping device. The extrusion device is installed on the supporting device in an up-down sliding mode, the telescopic end of the extrusion device is arranged downwards, the extrusion device is located above the clamping device, a pressure sensor is arranged at the extrusion end of the extrusion device, and the pressure sensor is electrically connected with the reset sensing device; and the reset sensing device is fixedly installed on the side face of the supporting device, the movable end of the reset sensing device is fixedly connected with a main body of the extrusion device, and through the structure, the existence of foreign matter can be rapidly reflected.

Description

Technical Field

[0001] The utility model belongs to the technical field of PCB test fixture equipment, and in particular relates to a high-precision computer server PCB test fixture. Background Art

[0002] Jigs have been widely used before the industrial age, including mechanical jigs, woodworking jigs, welding jigs, jewelry jigs, and other fields. Some types of jigs are also called "molds" or "auxiliary tools". Their main purpose is to repeat and accurately reproduce a part. An obvious example is when copying a key, the original key is usually fixed on the jig, so that the machine can copy the new key by the appearance of the original key. Most of the jigs used in PCB circuit board production are PCB test jigs used to test finished PCB circuit boards.

[0003] Most of the PCB test fixtures in the prior art use a cylinder or an electric push rod as an upper driving source to drive the upper part to move downward to clamp the PCB circuit board. When the circuit board is placed in an improper position, a cylinder structure is used as a driving source. Since the stroke of the telescopic rod of the cylinder is fixed, braking cannot be achieved during the extension and retraction of the telescopic rod. If the driving source is not braked in time, the clamping effect of the upper and lower parts is likely to damage the PCB circuit board, resulting in damage to the PCB circuit board. Even careless employees' hands may still remain between the upper and lower parts, and they may be easily pierced by the upper probe. At the same time, even if the pipe of the negative pressure device is unplugged immediately, the upper part will continue to move downward under the influence of gravity. Therefore, there is a safety hazard of downward pressure when using the PCB test fixture in the prior art. Utility Model Content

[0004] The utility model aims to provide a high-precision computer server PCB test fixture, aiming to solve the technical problem of potential safety hazards of downward pressure during personal use of the test fixture in the prior art.

[0005] To achieve the above-mentioned purpose, an embodiment of the utility model provides a high-precision computer server PCB test fixture, including a base, a placement table, a supporting device, an extruding device and a reset sensing device, wherein the placement table and the supporting device are both fixedly mounted on the top plane of the base, a clamping device is provided on the placement table, the extruding device can be slid up and down and installed on the supporting device, the telescopic end of the extruding device is arranged downward, and the extruding device is located above the clamping device, a pressure sensor is provided at the extruding end of the extruding device, the pressure sensor is electrically connected to the reset sensing device, the reset sensing device is fixedly mounted on the side of the supporting device, and the moving end of the reset sensing device is fixedly connected to the main body of the extruding device.

[0006] Preferably, a moving device is provided on the supporting device, and a moving end of the moving device is fixedly connected to the extruding device.

[0007] Preferably, the moving device includes a fixed seat, a rack and a motor, the motor is fixedly installed on the back side of the supporting device, and the rotating end of the motor passes through the supporting device and extends to the front side, the fixed seat is fixedly installed on the side of the supporting device, the rack is fixedly installed on the side of the extrusion device, and the rack is slidably connected to the fixed seat, and the rotating end of the motor passes through the fixed seat and is meshed with the rack.

[0008] Preferably, a slide groove and a placement groove are provided on the fixed seat, the slide groove is set through both ends of the fixed seat, the rack is slidably installed in the slide groove, and a clearance hole is provided at the bottom of the placement groove. The rotating end of the motor passes through the clearance hole and is located in the placement groove, and the placement groove and the slide groove are arranged in communication.

[0009] Preferably, the reset sensing device includes a reset device and a limit device, the reset device and the limit device are both fixedly mounted on the side of the supporting device, and the reset device and the extrusion device are adjacently arranged, the telescopic end of the reset device is fixedly connected to the extrusion device, and the telescopic end of the limit device is arranged perpendicular to the telescopic end path of the reset device, so as to block and limit the contraction of the telescopic end of the reset device.

[0010] Preferably, the limiting device comprises a limiting cylinder and a limiting block, the limiting cylinder is fixedly mounted on the supporting device, the limiting block is fixedly mounted on the telescopic end of the limiting cylinder, and the bottom plane of the limiting block is inclined from bottom to top in a direction away from the limiting cylinder.

[0011] Preferably, a fixed block is provided on the telescopic end of the resetting device, the fixed block is fixedly connected to the extrusion device, and the limiting block can be moved to above the fixed block.

[0012] Preferably, the clamping device comprises a first clamping plate device and a second clamping plate device, the first clamping plate device and the second clamping plate device are both slidably disposed on the placement table, and the first clamping plate device and the second clamping plate device are disposed opposite to each other.

[0013] Preferably, the first clamping plate device and the second clamping plate device each include an upper clamping plate, a lower clamping plate and two columns, the two columns are fixedly installed on the placement table at an interval, and the other ends of the two columns pass through the lower clamping plate and are fixedly connected with the lower clamping plate, and the other ends of the two columns pass through the upper clamping plate and are movably connected with the upper clamping plate, and the upper clamping plate is located above the lower clamping plate.

[0014] Preferably, a lifting device is provided between the upper clamping plate and the lower clamping plate, the lifting device is fixedly mounted on the lower clamping plate, and a lifting section of the lifting device is fixedly connected to the upper clamping plate.

[0015] The above one or more technical solutions in the high-precision computer server PCB test fixture provided by the embodiment of the utility model have at least one of the following technical effects:

[0016] The high-precision computer server PCB test fixture in the present application is assembled by a base, a placement table, a supporting device, an extruding device and a reset sensing device, wherein the extruding end of the extruding device can move up and down, and the extruding end of the extruding device is arranged downward, and a pressure sensor is arranged on the extruding end of the extruding device for sensing the extruding pressure after contacting an obstruction, and a spacing sensor is arranged on the side of the extruding end of the extruding device for sensing the spacing between the extruding end of the extruding device and the object to be tested during the downward movement, and the spacing sensing is combined with the pressure sensing to distinguish whether the object to be tested is contacted, and when there are other foreign objects blocking in the middle, the spacing sensing is used to judge whether it is the object to be tested, and then the pressure sensing is used to avoid accidents caused by extrusion, the placement table is fixedly installed on the base, the supporting device is fixedly installed on the base close to the placement table, and the extruding device and the reset sensing device are both installed on the side of the supporting device, and the control system It is arranged in the base and is electrically connected to the extrusion device and the reset sensing device to control the extrusion device to complete the force detection of the object to be tested. The extrusion device is set to slide up and down. The reset sensing device is used to fix the installation state of the extrusion device. During normal operation, the reset sensing device fixes the position of the extrusion device to prevent movement. The mobile end of the reset sensing device is connected to the main body of the extrusion device to control its movement. When foreign matter is sensed, the odor sensing device no longer fixes the main body of the extrusion device. The main body of the extrusion device moves upward relative to the supporting device under the reaction force of its extrusion end. After the foreign matter is removed, it returns to its original position under the reset action of the reset sensing device. The reset sensing device re-fixes the position of its main body. Through the above-mentioned structural arrangement, the high-precision computer server PCB test fixture in this application can quickly respond to the presence of foreign matter and sense accidents during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 A front view of a high-precision computer server PCB test fixture provided by an embodiment of the utility model.

[0019] Figure 2 for Figure 1 A partial enlarged view of middle A.

[0020] Figure 3 A top view of a high-precision computer server PCB test fixture provided in an embodiment of the utility model.

[0021] Figure 4 A side view of a high-precision computer server PCB test fixture provided by an embodiment of the utility model.

[0022] Figure 5 A front view of a mobile device of a high-precision computer server PCB test fixture provided in an embodiment of the utility model.

[0023] Figure 6 A front view of a reset sensing device of a high-precision computer server PCB test fixture provided by an embodiment of the utility model.

[0024] Among them, the reference numerals in the figure are:

[0025] 10—base 20—placement table 21—clamping device

[0026] 30—Support device 31—Moving device 40—Extrusion device

[0027] 50—Reset induction device 51—Reset device 52—Limiting device

[0028] 211 - first clamping plate device 212 - second clamping plate device 311 - fixed seat

[0029] 312 - rack 313 - motor 511 - fixed block

[0030] 521—limit cylinder 522—limit block 2111—upper clamp

[0031] 2112—lower splint 2113—column. DETAILED DESCRIPTION

[0032] The following describes the embodiments of the present invention in detail. Figures 1 to 6 , wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the utility model, and should not be construed as limiting the utility model.

[0033] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0035] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0036] In one embodiment of the present invention, Figure 1 and Figures 3-4 As shown, a high-precision computer server PCB test fixture is provided, including a base 10, a placement table 20, a supporting device 30, an extrusion device 40 and a reset sensing device 50. The placement table 20 and the supporting device 30 are both fixedly installed on the top plane of the base 10. A clamping device 21 is provided on the placement table 20. The extrusion device 40 can be slid up and down on the supporting device 30. The telescopic end of the extrusion device 40 is arranged downward, and the extrusion device 40 is located above the clamping device 21. A pressure sensor is provided at the extrusion end of the extrusion device 40, and the pressure sensor is electrically connected to the reset sensing device 50. The reset sensing device 50 is fixedly installed on the side of the supporting device 30, and the moving end of the reset sensing device 50 is fixedly connected to the main body of the extrusion device 40.

[0037] The high-precision computer server PCB test fixture in the present application is assembled by a base 10, a placement table 20, a support device 30, an extrusion device 40 and a reset sensing device 50, wherein the extrusion end of the extrusion device 40 can move up and down, and the extrusion end of the extrusion device 40 is set downward, and a pressure sensor is set on the extrusion end of the extrusion device 40 for sensing the extrusion pressure after contacting an obstacle, and a spacing sensor is set on the side of the extrusion end of the extrusion device 40 for sensing the spacing between the extrusion end of the extrusion device 40 and the object to be tested during the downward movement. The spacing sensing is combined with the pressure sensing to determine whether the object to be tested is contacted. When there are other foreign objects blocking in the middle, the spacing sensing is used to determine whether it is the object to be tested, and then the pressure sensing is used to avoid accidents caused by extrusion. The placement table 20 is fixedly installed on the base 10, and the support device 30 is fixedly installed on the base 10 close to the placement table 20, and the extrusion device 40 and the reset sensing device 50 are both installed on the side of the support device 30. The system is arranged in the base 10, and is electrically connected between the extrusion device 40 and the reset sensing device 50, and controls the extrusion device 40 to complete the force detection of the object to be tested. The extrusion device 40 is set to slide up and down, and the reset sensing device 50 is used to fix the installation state of the extrusion device 40. During normal operation, the reset sensing device 50 fixes the position of the extrusion device 40 to prevent movement. The mobile end of the reset sensing device 50 is connected to the main body of the extrusion device 40 to control its movement. When foreign matter is sensed, the odor sensing device no longer fixes the main body of the extrusion device 40. The main body of the extrusion device 40 moves upward relative to the support device 30 under the reaction force of its extrusion end. After the foreign matter is removed, it returns to its original position under the reset action of the reset sensing device 50, and the reset sensing device 50 re-fixes the position of its main body. Through the above-mentioned structural arrangement, the high-precision computer server PCB test fixture in this application can quickly respond to the presence of foreign matter and sense accidents during operation.

[0038] In another embodiment of the present invention, Figure 3 and Figure 5 As shown, a moving device 31 is provided on the supporting device 30 , and a moving end of the moving device 31 is fixedly connected to the extrusion device 40 . The moving device 31 enables the extrusion device 40 to move more smoothly, and on the other hand, it is also convenient for assembling the extrusion device 40 .

[0039] In another embodiment of the present invention, Figure 3 and Figure 5As shown, the moving device 31 includes a fixed seat 311, a rack 312 and a motor 313. The motor 313 is fixedly installed on the back of the supporting device 30, and the rotating end of the motor 313 extends to the front through the supporting device 30. The fixed seat 311 is fixedly installed on the side of the supporting device 30, the rack 312 is fixedly installed on the side of the extrusion device 40, and the rack 312 is slidably connected to the fixed seat 311. The rotating end of the motor 313 passes through the fixed seat 311 and is meshed with the rack 312. The rack 312 is controlled to move up and down by the motor 313, thereby driving the extrusion device 40 to move. The up and down movement of the extrusion device 40 is controlled by the motor 313, which can ensure that the movement of the extrusion device 40 is smoother.

[0040] In another embodiment of the present invention, Figure 5 As shown, a slide groove and a placement groove are provided on the fixed seat 311. The slide groove is set through both ends of the fixed seat 311. The rack 312 is slidably installed in the slide groove. The bottom of the placement groove is provided with an air avoidance hole. The rotating end of the motor 313 passes through the air avoidance hole and is located in the placement groove. The placement groove and the slide groove are connected to each other. The rack 312 is embedded and assembled on the fixed seat 311, which can reasonably arrange the assembly of the rack 312. The connection between the placement groove and the slide groove is used to ensure the meshing connection relationship between the motor 313 and the rack 312.

[0041] In another embodiment of the present invention, Figure 1 , Figure 3-4 and Figure 6 As shown, the reset sensing device 50 includes a reset device 51 and a limit device 52. The reset device 51 and the limit device 52 are both fixedly mounted on the side of the support device 30, and the reset device 51 and the extrusion device 40 are adjacently arranged. The telescopic end of the reset device 51 is fixedly connected to the extrusion device 40, and the telescopic end of the limit device 52 is arranged perpendicular to the telescopic end path of the reset device 51, so as to block and limit the contraction of the telescopic end of the reset device 51. The movement of the extrusion device 40 is limited by limiting the movement of the telescopic end of the reset device 51 through the limit device 52.

[0042] In another embodiment of the present invention, Figure 1 , Figure 3-4 and Figure 6 As shown, the limiting device 52 includes a limiting cylinder 521 and a limiting block 522. The limiting cylinder 521 is fixedly mounted on the supporting device 30, and the limiting block 522 is fixedly mounted on the telescopic end of the limiting cylinder 521. The bottom plane of the limiting block 522 is inclined from bottom to top in a direction away from the limiting cylinder 521. The inclined surface setting can make it easier for the limiting block 522 to be inserted above the telescopic end of the resetting device 51 to limit its movement.

[0043] In another embodiment of the present invention, Figure 6As shown, a fixed block 511 is provided on the telescopic end of the resetting device 51, and the fixed block 511 is fixedly connected to the extrusion device 40. The limit block 522 can be moved above the fixed block 511. The setting of the fixed block 511 is convenient for connection with the extrusion device 40 on the one hand, and also convenient for the limit block 522 to act on it on the other hand.

[0044] In another embodiment of the present invention, Figures 1 to 4 As shown, the clamping device 21 includes a first clamping plate device 211 and a second clamping plate device 212. The first clamping plate device 211 and the second clamping plate device 212 are both slidably arranged on the placement table 20, and the first clamping plate device 211 and the second clamping plate device 212 are arranged opposite to each other. The first clamping plate device 211 and the second clamping plate device 212 clamp the two ends of the object to be tested relatively, and the middle is left for the extrusion device 40 to perform toughness side viewing.

[0045] In another embodiment of the present invention, Figures 1 to 4 As shown, the first clamping plate device 211 and the second clamping plate device 212 each include an upper clamping plate 2111, a lower clamping plate 2112 and two columns 2113. The two columns 2113 are fixedly installed on the placement table 20 at an interval, and the other ends of the two columns 2113 pass through the lower clamping plate 2112 and are fixedly connected with the lower clamping plate 2112. The other ends of the two columns 2113 pass through the upper clamping plate 2111 and are movably connected with the upper clamping plate 2111. The upper clamping plate 2111 is located above the lower clamping plate 2112, and one end of the object to be tested is fixed by clamping the upper and lower clamping plates 2112.

[0046] In another embodiment of the present invention, Figures 1 to 4 As shown, a lifting device is provided between the upper clamping plate 2111 and the lower clamping plate 2112. The lifting device is fixedly mounted on the lower clamping plate 2112, and the lifting section of the lifting device is fixedly connected to the upper clamping plate 2111. The lifting device controls the distance between the upper and lower clamping plates 2112 to firmly clamp the object to be tested.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-precision computer server PCB test fixture, characterized by: It includes a base, a placing table, a supporting device, an extruding device and a reset sensing device, wherein the placing table and the supporting device are both fixedly installed on the top plane of the base, a clamping device is provided on the placing table, and the extruding device can be slid up and down on the supporting device, the telescopic end of the extruding device is arranged downward, and the extruding device is located above the clamping device, a pressure sensor is provided on the extruding end of the extruding device, and the pressure sensor is electrically connected to the reset sensing device, the reset sensing device is fixedly installed on the side of the supporting device, and the moving end of the reset sensing device is fixedly connected to the main body of the extruding device.

2. The high-precision computer server PCB test fixture according to claim 1 is characterized in that: The supporting device is provided with a moving device, and the moving end of the moving device is fixedly connected to the extruding device.

3. The high-precision computer server PCB test fixture according to claim 2 is characterized in that: The moving device includes a fixed seat, a rack and a motor. The motor is fixedly installed on the back side of the supporting device, and the rotating end of the motor passes through the supporting device and extends to the front side. The fixed seat is fixedly installed on the side of the supporting device, and the rack is fixedly installed on the side of the extrusion device, and the rack is slidably connected to the fixed seat. The rotating end of the motor passes through the fixed seat and is meshed with the rack.

4. The high-precision computer server PCB test fixture according to claim 3 is characterized in that: A slide groove and a placement groove are provided on the fixed seat, the slide groove is set through both ends of the fixed seat, the rack is slidably installed in the slide groove, and a clearance hole is provided at the bottom of the placement groove. The rotating end of the motor passes through the clearance hole and is located in the placement groove, and the placement groove and the slide groove are connected.

5. The high-precision computer server PCB test fixture according to claim 1, characterized in that: The reset sensing device includes a reset device and a limit device, the reset device and the limit device are both fixedly mounted on the side of the support device, and the reset device and the extrusion device are adjacently arranged, the telescopic end of the reset device is fixedly connected to the extrusion device, and the telescopic end of the limit device is arranged perpendicular to the telescopic end path of the reset device, so as to block and limit the contraction of the telescopic end of the reset device.

6. The high-precision computer server PCB test fixture according to claim 5, characterized in that: The limiting device includes a limiting cylinder and a limiting block, wherein the limiting cylinder is fixedly mounted on the supporting device, and the limiting block is fixedly mounted on the telescopic end of the limiting cylinder, and the bottom plane of the limiting block is inclined upward from bottom to top in a direction away from the limiting cylinder.

7. The high-precision computer server PCB test fixture according to claim 6, characterized in that: A fixed block is arranged on the telescopic end of the resetting device, the fixed block is fixedly connected to the extrusion device, and the limiting block can be moved to above the fixed block.

8. The high-precision computer server PCB test fixture according to claim 1, characterized in that: The clamping device includes a first clamping plate device and a second clamping plate device. The first clamping plate device and the second clamping plate device are both slidably arranged on the placement table, and the first clamping plate device and the second clamping plate device are arranged opposite to each other.

9. The high-precision computer server PCB test fixture according to claim 8, characterized in that: The first clamping plate device and the second clamping plate device both include an upper clamping plate, a lower clamping plate and two columns. The two columns are fixedly installed on the placement table at an interval, and the other ends of the two columns pass through the lower clamping plate and are fixedly connected with the lower clamping plate. The other ends of the two columns pass through the upper clamping plate and are movably connected with the upper clamping plate. The upper clamping plate is located above the lower clamping plate.

10. The high-precision computer server PCB test fixture according to claim 9, characterized in that: A lifting device is provided between the upper clamping plate and the lower clamping plate. The lifting device is fixedly mounted on the lower clamping plate, and a lifting section of the lifting device is fixedly connected to the upper clamping plate.

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