Pressure calibration device

Abstract

The utility model relates to a pressure calibration device which is applied to crimping equipment, the pressure calibration device comprises a calibration mechanism, a fixing mechanism and an electric control device, the calibration mechanism is provided with a pressure sensor, the fixing mechanism is arranged at one end, far away from the calibration mechanism, of the pressure sensor, and the fixing mechanism can fix the pressure sensor to the calibration mechanism when the crimping equipment moves and crimps the calibration mechanism. The electric control device is used for transmitting applied pressure to the pressure sensor, and is in communication connection with the pressure sensor and a monitoring device of the driving motor; according to the pressure calibration device, the pressure sensor senses the pressure applied to the fixing mechanism by the crimping equipment, so that the electric control device can compare the pressure numerical value with the torque numerical value of the driving motor after receiving the pressure numerical value sensed by the pressure sensor, pressure calibration is achieved, and the device is simple in overall structure, convenient to carry and high in practicability. And the calibration mechanism can be replaced according to the structure of the crimping head of the crimping equipment, so that the application range is expanded.

Description

Technical Field

[0001] The present application relates to the technical field of automated equipment calibration, and in particular to a pressure calibration device. Background Art

[0002] Semiconductor devices need to undergo functional testing during the production process. Most of the time, crimping equipment is used to control the crimping head to move and crimp the probes on the crimping head to the pins of the semiconductor module to achieve functional testing.

[0003] To ensure the test effect, the crimping equipment needs to be pressure calibrated. However, most of the current pressure calibration devices are bulky and inconvenient to carry, and cannot be applied to crimping heads of different structures, so their scope of use is limited. Utility Model Content

[0004] Based on this, it is necessary to provide a pressure calibration device to address the above-mentioned problems of being inconvenient to carry and having a limited scope of use.

[0005] A pressure calibration device,

[0006] Applied to a crimping device, the crimping device moves along a first direction driven by its driving motor, characterized in that the pressure calibration device comprises:

[0007] A calibration mechanism, provided with a pressure sensor;

[0008] A fixing mechanism is provided at one end of the pressure sensor away from the calibration mechanism and can transmit the applied pressure to the pressure sensor when the crimping device moves to crimp on the calibration mechanism;

[0009] The electronic control device is communicatively connected with the pressure sensor and the monitoring device of the drive motor, and can compare the pressure value of the pressure sensor with the torque value of the drive motor to achieve pressure calibration.

[0010] In one of the embodiments, the pressure sensor is used to read the pressure value when the crimping device abuts against the calibration mechanism, and the monitoring device is used to synchronously obtain the torque value of the drive motor.

[0011] In one of the embodiments, the electronic control device obtains a linear relationship between the pressure value and the torque value obtained at different times, so as to adjust the torque output of the drive motor based on the linear relationship.

[0012] In one of the embodiments, a positioning connector is further included. The positioning connector is disposed between the calibration mechanism and the fixing mechanism along the first direction to complete the angular positioning of the calibration mechanism and the fixing mechanism in the axial direction of the pressure sensor.

[0013] In one of the embodiments, the positioning connector is detachably disposed on the calibration mechanism and / or the fixing mechanism.

[0014] In one embodiment, at least two positioning connectors are provided, and each positioning connector is symmetrically arranged based on the axial direction of the pressure sensor.

[0015] In one embodiment, all the positioning connectors are spaced apart along a second direction, and the second direction is perpendicular to the first direction.

[0016] In one embodiment, the fixing mechanism is spaced apart from the calibration mechanism in the first direction and is parallel to the calibration mechanism.

[0017] In one of the embodiments, a limiting member is provided on the calibration mechanism, and the limiting member is arranged on a contact surface of the calibration mechanism facing the crimping device, and is configured to cooperate with a limiting portion on the crimping device.

[0018] In one of the embodiments, at least two of the limiting members are provided, and the limiting members are spaced apart on a contact surface of the calibration mechanism facing the crimping device.

[0019] The above-mentioned pressure calibration device senses the pressure applied to the fixing mechanism by the crimping equipment through the pressure sensor, so that the electronic control device can compare the pressure value with the torque value of the driving motor after receiving the pressure value sensed by the pressure sensor, thereby realizing pressure calibration. The overall structure of the calibration device is simple and easy to carry, and the calibration mechanism can be replaced according to the structure of the crimping head of the crimping equipment to expand the scope of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the crimping equipment of some embodiments of the present application.

[0021] Figure 2 This is a schematic diagram of the structure of a pressure calibration device according to some embodiments of the present application.

[0022] Figure 3 This is a partial structural schematic diagram of a pressure calibration device according to some embodiments of the present application.

[0023] Reference numerals:

[0024] 1. Pressure calibration device; 11. Calibration mechanism; 12. Fixing mechanism; 13. Electronic control device; 14. Pressure sensor; 15. Positioning member; 16. Limiting member;

[0025] 2. Crimping equipment; 21. Crimping head; 22. Driving motor; 23. Bracket;

[0026] 3. Positioning connector; 31. First connector; 32. Second connector. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0028] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply 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 application.

[0029] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0031] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0033] See also Figure 1, an embodiment of the present application provides a pressure calibration device 1, which is applied to a crimping device 2. Among them, the crimping device 2 includes a crimping head 21 and a driving motor 22, the crimping head 21 is connected to the driving motor 22 by transmission, and can move along a first direction under the drive of the driving motor 22. Specifically, the crimping device 2 also includes a bracket 23, and the bracket 23 has an installation area and a crimping area arranged at intervals along the first direction. The driving motor 22 is arranged on the installation area of ​​the bracket 23, and the crimping head 21 is slidably arranged on the bracket 23 along the first direction and is connected to the driving motor 22 by transmission. The driving motor 22 is a rotary motor. When the driving motor 22 drives its driving shaft to rotate, the crimping head 21 can be driven to slide relative to the bracket 23 along the first direction, so that the crimping head 21 can move in the crimping area of ​​the bracket 23, and the semiconductor module in the crimping area is functionally tested. In addition, the crimping head 21 is detachably connected to the bracket 23, so that the crimping device 2 can replace the matching crimping head 21 according to the type of semiconductor module to be tested, so as to achieve the effect of testing multiple types of semiconductor modules.

[0034] See also Figure 2-Figure 3 The pressure calibration device 1 includes a calibration mechanism 11, a fixing mechanism 12 and an electronic control device 13. The calibration mechanism 11 is used to install the pressure sensor 14. The fixing mechanism 12 is used to assist the pressure sensor 14 in receiving the pressure given by the crimping device 2. The electronic control device 13 is used to receive the pressure value sensed by the pressure sensor 14 and the real-time torque value of the drive motor 22, and calculate the standard pressure value that the crimping joint 21 should give to the fixing mechanism 12 according to the real-time torque value of the drive motor 22, and realize pressure calibration by comparing the measured pressure value sensed by the pressure sensor 14 with the standard pressure value that the crimping joint 21 should give.

[0035] In the specific setting, a pressure sensor 14 is provided on the side of the calibration mechanism 11 facing the fixing mechanism 12, and the calibration mechanism 11 is detachably connected to the pressure sensor 14. The pressure contact of the pressure sensor 14 faces the fixing mechanism 12, and the pressure sensor 14 is used to read the pressure value when the crimping device 2 abuts against the calibration mechanism 11. The fixing mechanism 12 is arranged at the end of the pressure sensor 14 away from the calibration mechanism 11, and can be deformed and contacted with the pressure contact of the pressure sensor 14 when the crimping device 2 moves and is crimped on the calibration mechanism 11, so as to transmit the applied pressure to the pressure sensor 14, so that the pressure sensor 14 can detect the pressure applied by the crimping device 2 to the fixing mechanism 12 in real time. The electronic control device 13 is communicatively connected with the pressure sensor 14 and the monitoring device of the drive motor 22, and can compare the pressure value of the pressure sensor 14 with the torque value of the drive motor 22 to achieve pressure calibration.

[0036] That is, the electronic control device 13 can obtain a linear relationship between the pressure values ​​and torque values ​​obtained at different times, so as to adjust the torque output of the drive motor 22 based on the linear relationship. It can be understood that when the crimping device contacts the pressure calibration device 1 of the present application under the control of the servo motor, the pressure sensor 14 will read the current pressure and display it on the display instrument of the electronic control device 13. When obtaining the pressure value, the electronic control device 13 can simultaneously obtain the torque value read by the servo motor 22, and obtain a linear curve between the pressure values ​​and torque values ​​obtained at different times, so as to adjust the torque output of the drive motor 22 based on the linear relationship.

[0037] See also Figure 1-Figure 3 When the pressure calibration device 1 of the present application is in use, the fixing mechanism 12 can be first placed in the crimping area of ​​the crimping device 2, and the calibration mechanism 11 can be aligned with the crimping head 21 of the crimping device 2, and then the electronic control device 13 can be electrically connected to the drive motor 22 of the crimping device 2, so that the electronic control device 13 can grasp the output torque of the drive motor 22 in real time, and can adjust the output torque of the drive motor 22. After the connection is completed, the crimping head 21 is driven to move by controlling the drive motor 22, so that the crimping head 21 gives pressure to the calibration mechanism 11. The pressure sensor 14 can sense the pressure received by the calibration mechanism 11 and feed back the pressure value to the electronic control device 13. The electronic control device 13 can calculate the standard pressure value that the crimping head 21 should give to the calibration mechanism 11 according to the real-time torque value of the drive motor 22, and compare the measured pressure value sensed by the pressure sensor 14 with the standard pressure value that the crimping head 21 should give, and adjust the correction coefficient of the drive motor 22 according to the comparison data until the measured pressure value sensed by the pressure sensor 14 is consistent with the standard pressure value that the crimping head 21 should give, so as to achieve pressure calibration. After calibration, the calibration mechanism 11 and the fixing mechanism 12 are taken out from the crimping area of ​​the crimping device 2, and then the semiconductor module to be tested is placed in the crimping area of ​​the crimping device 2, so that the calibrated crimping device 2 performs functional testing on the semiconductor module to be tested. The pressure calibration device 1 has a simple overall structure and is easy to carry, and the calibration mechanism 11 can be replaced according to the structure of the crimping head 21 of the crimping device 2, thereby expanding the scope of use.

[0038] See also Figure 2-Figure 3 In one embodiment, the pressure calibration device 1 also includes a positioning connector 3, which is arranged between the calibration mechanism 11 and the fixing mechanism 12 along a first direction to complete the angular positioning of the calibration mechanism 11 and the fixing mechanism 12 in the axial direction of the pressure sensor 14.

[0039] Specifically, the positioning connector 3 includes a first connector 31 and a second connector 32, wherein the first connector 31 is disposed on the calibration mechanism 11, and the second connector 32 is disposed on the first connector 11 and connected to the fixing mechanism 12. In one embodiment, the first connector 31 is a slider structure, and the second connector 32 is a rail structure. In another embodiment not shown, the first connector 31 is a rail structure, and the second connector 32 is a slider structure. When the positioning connector 3 is not installed on the calibration mechanism 11 and the fixing mechanism 12, the second connector 32 can slide relative to the first connector 11 along the first direction to offset the tolerance between the calibration mechanism 11 and the pressure sensor 14, and cooperate to complete the angular positioning of the calibration mechanism 11 and the fixing mechanism 12 in the axial direction of the pressure sensor 14. When the positioning connector 3 is installed on the calibration mechanism 11 and the fixing mechanism 12, the second connector 32 no longer changes position with the first connector 11 to ensure that the calibration mechanism 11 does not move relative to the fixing mechanism 12.

[0040] More specifically, the first connecting member 31 includes a sliding portion and a mounting portion, wherein the sliding portion is slidably disposed on the second connecting member 32 so that the second connecting member 32 can be slidably matched and connected with the first connecting member 31 before being connected with the calibration mechanism 11. The mounting portion is vertically disposed on the sliding portion and is detachably connected with the calibration mechanism 11. The side of the mounting portion facing away from the calibration mechanism 11 is in contact with the side of the fixing mechanism 12 facing the calibration mechanism 11, and the stability between the mounting portion and the fixing mechanism 12 is improved by providing a larger contact area between the mounting portion and the fixing mechanism 12.

[0041] In one embodiment, the positioning connector 3 is detachably arranged on the calibration mechanism 11 and / or the fixing mechanism 12, so that the calibration mechanism 11 and the fixing mechanism 12 are a detachable structure, and the fixing mechanism 12 can be replaced according to the structure of the crimping head 21 of the crimping equipment 2 to expand the scope of use.

[0042] Specifically, in one embodiment, the positioning connector 3 is detachably disposed on the bottom surface of the calibration mechanism 11 by means of fixing screws, and is connected to the top surface of the fixing mechanism 12; in another embodiment, the positioning connector 3 is detachably disposed on the top surface of the fixing mechanism 12 by means of fixing screws, and is connected to the bottom surface of the calibration mechanism 11; in yet another embodiment, the positioning connector 3 is detachably connected to the top surface of the fixing mechanism 12 and the bottom surface of the calibration mechanism 11 by means of different fixing screws.

[0043] More specifically, the positioning connector 3 includes a first connector 31 and a second connector 32, the first connector 31 is detachably connected to the calibration mechanism 11, and the second connector 32 is detachably connected to the fixing mechanism 12. Exemplarily, the fixing mechanism 12 is spaced apart from the calibration mechanism 11 in the first direction and is parallel to the calibration mechanism 12. The calibration mechanism 11 has a bottom surface perpendicular to the first direction, the first connector 31 is detachably arranged on the bottom surface of the calibration mechanism 11 by a fixing screw, the second connector 32 can be slidably arranged on the first connector 31 before being connected to the fixing mechanism 12, the fixing mechanism 12 has a top surface perpendicular to the first direction, and the second connector 32 is detachably arranged on the top surface of the fixing mechanism 12 by another fixing screw.

[0044] In one embodiment, at least two positioning connectors 3 are provided, and each positioning connector 3 is symmetrically arranged based on the axis of the pressure sensor 14. Specifically, all positioning connectors 3 are arranged at intervals along the second direction, and the second direction is perpendicular to the first direction.

[0045] Exemplarily, two first connectors 31 and two second connectors 32 are provided, the two first connectors 31 are symmetrically arranged with the pressure sensor 14 as the axis, and the two second connectors 32 are respectively slidably arranged on the two first connectors 31. Specifically, the two first connectors 31 are symmetrically arranged with the pressure sensor 14 as the axis on both sides of the bottom surface of the calibration mechanism 11, and the two second connectors 32 are respectively slidably arranged on the two first connectors 31 and are respectively connected to both sides of the top surface of the fixing mechanism 12. By increasing the number of the first connectors 31 and the second connectors 32, the stability of the fixing mechanism 12 when it slides relatively along the first direction is enhanced.

[0046] In one embodiment, a limiting member 16 is provided on the calibration mechanism 11, and the limiting member 16 is arranged on the contact surface of the calibration mechanism 11 facing the crimping device 2, and is configured to cooperate with the limiting portion on the crimping device 2. When the crimping device 2 contacts the calibration mechanism 11, the limiting member 16 cooperates with the limiting portion to achieve a stable connection between the crimping device 2 and the calibration mechanism 11. The limiting portion can be a limiting groove, and the limiting member 16 can be inserted into the limiting groove to achieve a stable connection between the crimping device 2 and the calibration mechanism 11.

[0047] Specifically, at least two stoppers 16 are provided, and the stoppers 16 are spaced apart on the contact surface of the calibration mechanism 11 facing the crimping device 2. By increasing the number of stoppers 16, the connection stability between the crimping device 2 and the calibration mechanism 11 is enhanced.

[0048] In one embodiment, a positioning member 15 is provided on the fixing mechanism 12, and the positioning member 15 is configured to cooperate with a positioning portion on the crimping device 1 so as to align the fixing mechanism 12 with the crimping head 21. Specifically, the positioning member 15 is disposed on the top surface of the fixing mechanism 12 and is spaced apart from the pressure sensor 14 in a direction perpendicular to the first direction. When the fixing mechanism 12 is placed in the crimping area of ​​the crimping device 2, it can cooperate with the positioning portion in the crimping area so as to align the calibration mechanism 11 with the crimping head 21. The positioning portion of the crimping device 2 can be a positioning mark or a position sensor.

[0049] In one embodiment, at least two positioning members 15 are provided, and each positioning member 15 is arranged at intervals on the bearing surface of the fixing mechanism 12. Specifically, in the embodiment of the present application, two positioning members 15 are provided, and the two positioning members 15 are arranged on both sides of the pressure sensor 14 symmetrically with respect to the axis, and the positioning effect is enhanced by increasing the number of positioning members 15. The connecting line of the two positioning members 15 is perpendicular to the connecting line of the two first connecting members 31, so that the first connecting member 31 will not affect the positioning effect of the positioning member 15.

[0050] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0051] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A pressure calibration device, applied to a crimping device, wherein the crimping device moves along a first direction driven by a driving motor thereof, characterized in that: The pressure calibration device comprises: A calibration mechanism, provided with a pressure sensor; A fixing mechanism, which is disposed at one end of the pressure sensor away from the calibration mechanism and can transmit the applied pressure to the pressure sensor when the crimping device moves to crimp on the calibration mechanism; The electronic control device is communicatively connected with the pressure sensor and the monitoring device of the drive motor, and can compare the pressure value of the pressure sensor with the torque value of the drive motor to achieve pressure calibration.

2. The pressure calibration device according to claim 1, characterized in that: The pressure sensor is used to read the pressure value when the crimping device abuts against the calibration mechanism, and the monitoring device is used to synchronously obtain the torque value of the driving motor.

3. The pressure calibration device according to claim 2, characterized in that: The electronic control device obtains a linear relationship between the pressure value and the torque value obtained at different times, so as to adjust the torque output of the drive motor based on the linear relationship.

4. The pressure calibration device according to claim 1, characterized in that: It also includes a positioning connector, which is disposed between the calibration mechanism and the fixing mechanism along the first direction and is used to complete the angular positioning of the calibration mechanism and the fixing mechanism in the axial direction of the pressure sensor.

5. The pressure calibration device according to claim 4, characterized in that: The positioning connector is detachably arranged on the calibration mechanism and / or the fixing mechanism.

6. The pressure calibration device according to claim 4 or 5, characterized in that: At least two positioning connectors are provided, and each positioning connector is symmetrically arranged based on the axial direction of the pressure sensor.

7. The pressure calibration device according to claim 6, characterized in that: All the positioning connectors are arranged at intervals along a second direction, and the second direction is perpendicular to the first direction.

8. The pressure calibration device according to any one of claims 1 to 5, characterized in that: The fixing mechanism is spaced apart from the calibration mechanism in the first direction and is parallel to the calibration mechanism.

9. The pressure calibration device according to claim 1, characterized in that: The calibration mechanism is provided with a limiting member, which is arranged on a contact surface of the calibration mechanism facing the crimping device and is configured to cooperate with a limiting portion on the crimping device.

10. The pressure calibration device according to claim 9, characterized in that: At least two of the limiting members are provided, and the limiting members are arranged at intervals on the contact surface of the calibration mechanism.

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