Sensor connecting device applied to hanging head of terminal machine and terminal machine
By designing a non-connected pressure transfer groove and clamping interface and a sensor connection device using pre-pressure tablets, the problems of terminal sensors are solved and the problems of oil leakage are achieved, and a higher service life and crimp quality are achieved.
Patent Information
- Application Number
- CN202510420256.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2025-05-06
AI Technical Summary
The existing terminal machine sensor installation structure is prone to damage to the sensor due to uneven force or mechanical vibration of the mold, and the oil of the lubricating system may leak into the circuit part and cause short circuit or signal drift.
A sensor connection device is designed, in which the pressure transfer groove and the clamping interface are not connected, forming a physical isolation barrier, blocking the oil penetration path, and ensuring that the sensor only bears axial compression load through the pre-pressure tablet to avoid damage to the sensor by non-axial loads.
It effectively prevents the sensor from being damaged due to non-axial loads, and prevents oil from penetrating into the circuit, improves the service life of the sensor and crimp quality, and reduces the occurrence of product defects.
Smart Images
Figure CN119944392A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of terminal machines, and in particular to a sensor connection device applied to a terminal machine hanging head and the terminal machine. Background Art
[0002] As the core equipment for wire processing, the terminal machine realizes non-welding mechanical connection by crimping the hardware terminal to the end of the wire. It is widely used in the fields of electronic manufacturing, power systems and communication equipment. According to the degree of automation and functional differences, the existing terminal machines can be divided into several categories, such as fully automatic, stripping and punching, pneumatic and ultra-quiet types. In the crimping process, in order to ensure reliable contact between the terminal and the wire, it is usually necessary to configure a pressure head at the end of the equipment, monitor the pressure in real time through a pressure sensor, and realize dynamic pressure adjustment with the help of a closed-loop control system, so as to maintain the vertical contact state between the mold and the workpiece and reduce poor connection caused by offset.
[0003] However, the installation structure of the pressure sensor in the prior art has significant defects: first, the pressure head is prone to generate lateral shear force due to uneven force on the mold or mechanical vibration during the pressure application process, causing the sensitive components inside the sensor to be damaged due to non-axial load impact; second, the oil leaking from the lubrication system of the pressure head is prone to invade the circuit part along the sensor assembly gap, causing short circuit or signal drift. The above problems not only reduce the service life of the sensor, but also cause fluctuations in crimping quality due to distortion of monitoring data, and even cause batch product defects.
[0004] Therefore, designing a terminal machine sensor fixing device and a terminal machine to solve the above problems has become an issue that needs to be solved urgently. Summary of the invention
[0005] The main purpose of the present invention is to provide a sensor connection device and a terminal machine for use in a terminal machine lifting head, aiming to solve the technical problem that a pressure sensor installed on a pressure lifting head is easily damaged during use.
[0006] To achieve the above-mentioned objectives, the present invention provides a sensor connection device and a terminal machine applied to a terminal machine hanging head, comprising: a hanging head, the top of the hanging head is used to abut against the mold to transmit a pressing torque; a fixed seat, installed at the bottom of the hanging head, the fixed seat is close to the hanging head and is provided with a pressure transmission groove for installing a pressure sensor, the fixed seat is provided with a clamping interface for installing a pressure hanging head at the end away from the hanging head, the pressure transmission groove and the clamping interface are not connected to each other, the center of the sensing surface of the pressure sensor and the center of the action surface of the pressure hanging head are on the same axis; a pre-compression plate, which is arranged in the pressure transmission groove and presses the pressure sensor to the hanging head, and the pre-compression plate is used to transmit the pressing torque of the pressure hanging head to the pressure sensor.
[0007] Optionally, it also includes a plug-in block, and a plug-in slide extending from one side of the card-joining interface and connected to the side wall of the fixed seat, the plug-in slide is used to allow the pressure head to slide into the card-joining interface, and a convex ring is provided on the inner side of the card-joining interface to limit the axial movement of the pressure head, and the plug-in block is detachably arranged in the plug-in slide and limits the radial movement of the pressure head.
[0008] Optionally, a plurality of unloading holes are arranged around a surface of the pre-compression plate facing the pressure hanging head, and all the unloading holes are arranged at intervals around the center of the pre-compression plate action surface.
[0009] Optionally, a wiring shell is provided on the side of the fixing seat, and a wiring cover cooperating with the wiring shell is provided on the side of the hanging head, the wiring shell and the wiring cover enclose a wiring channel, the pressure sensor is connected to the outside world through the wiring channel, and the angle between the wiring channel and the plug-in slide is greater than or equal to 90°.
[0010] Optionally, the wiring channel includes a first wiring segment connected to the pressure transmission groove and a second wiring segment adjacent to the first wiring segment, the first wiring segment is used to accommodate the circuit part of the pressure sensor, and the second wiring segment is used to accommodate the wiring part of the pressure sensor.
[0011] Optionally, a lead-out top block is provided in the second wiring section, and the lead-out top block can move radially along the wiring portion to clamp the connecting line.
[0012] Optionally, the wiring shell is provided with a first limiting groove for installing the outlet top block, and the outlet top block is slidably disposed in the first limiting groove.
[0013] Optionally, the wiring cover is provided with a second limiting groove for installing the outlet top block, and the outlet top block is slidably disposed in the second limiting groove.
[0014] Optionally, it further includes an isolation membrane disposed between the pre-compression sheet and the sensing portion of the pressure sensor, wherein the isolation membrane is used to prevent contaminants from the first wiring segment from affecting the sensing portion.
[0015] The present invention also provides a terminal machine, including a pressure sensor, a driving structure and a sensor connecting device applied to a terminal machine hanging head. A pressure hanging head is installed at the end of the driving structure, and the pressure hanging head is movably connected to the clamping interface. The pressure sensor is installed in the pressure transmission groove, and one end of the fixed seat is fixedly connected to the terminal machine platform. The driving structure is used to drive the hanging head to press on the mold so that the pressure sensor collects terminal pressure data.
[0016] In the technical solution provided by the present invention, the pressure transmission groove and the card-joint interface are designed as independent cavities that are not connected to each other, forming a physical isolation barrier. The oil in the lubrication system of the pressure head is limited to the card-joint interface area due to the assembly gap, and cannot invade the circuit part of the pressure sensor through the pressure transmission groove, fundamentally blocking the oil penetration path. The center of the action surface of the pressure head is strictly coaxial with the center of the sensing surface of the sensor to ensure that the pressing torque is always transmitted axially. When the pressure head is slightly offset due to uneven force on the mold, the lateral displacement is absorbed by the deformation compensation of the pre-compression plate, so that the sensor only bears axial compression loads, avoiding the impact damage of non-axial loads on sensitive components, and also compensating to avoid the problem of pressure transmission misalignment that easily damages the sensor because the pressure sensor and the pressure head are in two independent cavities that are not connected to each other. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] One or more embodiments are exemplarily described by corresponding drawings, which do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and the figures in the drawings do not constitute proportional limitations unless otherwise stated.
[0018] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the sensor connection device of the present invention applied to the lifting head of a terminal machine; Figure 2 It is a schematic diagram of the exploded structure of an embodiment of the sensor connection device of the present invention applied to the lifting head of a terminal machine; Figure 3 It is a schematic diagram of the exploded structure of an embodiment of the sensor connection device of the present invention applied to the lifting head of a terminal machine; Figure 4 It is a top view structural schematic diagram of an embodiment of the sensor connection device of the present invention applied to the lifting head of a terminal machine; Figure 5 for Figure 4 The one at AA in the middle; Figure 6 for Figure 5 A partial enlarged view of point B in the middle; Figure 7 It is a schematic diagram of the overall structure of an embodiment of the sensor connection device of the present invention applied to the lifting head of a terminal machine; Figure 8 It is a side structural schematic diagram of an embodiment of the sensor connection device of the present invention applied to the lifting head of a terminal machine; Fig. 9 It is a schematic diagram of the assembly structure between a terminal machine, a mold and a sensor connection device applied to a terminal machine hanging head of the present invention; Fig.10 for Fig. 9 A partial enlarged view of the .
[0019] In the figure: 1. hanging head; 11. wiring cover; 12. second limiting groove; 13. anti-rotation baffle; 2. fixing seat; 21. pressure transmission groove; 22. snap-in interface; 221. convex ring; 222. plug-in slide; 23. wiring shell; 231. first wiring section; 232. second wiring section; 24. outlet top block; 25. first limiting groove; 3. pre-pressing sheet; 31. unloading hole; 4. pressure sensor; 41. induction part; 42. circuit part; 43. wiring part; 5. pressure hanging head; 6. plug-in block; 7. isolation membrane; 8. terminal machine; 81. driving structure; 9. mold. DETAILED DESCRIPTION
[0020] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on another element, or there can be one or more centered elements therebetween. When an element is described as "connected" to another element, it can be directly connected to another element, or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right", "inside", "outside" and similar expressions used in this specification are only for illustrative purposes. In the description of the present invention, the terms "first" and "second" are used only for descriptive purposes and cannot be understood as indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, unless otherwise specified, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; the meaning of "multiple" is two or more. The term "include" and any variation thereof means non-exclusive inclusion, and one or more other features, integers, steps, operations, units, components and / or combinations thereof may be present or added.
[0021] In addition, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" 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, an indirect connection through an intermediate medium, or a connection between two components. All technical and scientific terms used in this specification have the same meaning as those generally understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.
[0022] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0023] The present invention provides a sensor connection device applied to a terminal machine hanging head, comprising: a hanging head 1, the top of the hanging head 1 is used to abut against a mold 9 to transmit a pressing torque; a fixed seat 2, installed at the bottom end of the hanging head 1, the end of the fixed seat 2 close to the hanging head 1 is provided with a pressure transmission groove 21 for installing a pressure sensor 4, and the end of the fixed seat 2 away from the hanging head 1 is provided with a clamping interface 22 for installing a pressure hanging head 5, the pressure transmission groove 21 and the clamping interface 22 are not connected to each other, and the center of the sensing surface of the pressure sensor 4 and the center of the action surface of the pressure hanging head 5 are on the same axis; a pre-pressing plate 3, which is arranged in the pressure transmission groove 21 and presses the pressure sensor 4 to the hanging head 1, and the pre-pressing plate 3 is used to transmit the pressing torque of the pressure hanging head 5 to the pressure sensor 4.
[0024] Please refer to Figures 1 to 10 In the technical solution provided by the present invention, the pressure transmission groove 21 and the card-joint interface 22 are designed as independent cavities that are not connected to each other, forming a physical isolation barrier. The oil in the lubrication system of the pressure head 5 is limited to the card-joint interface 22 area due to the assembly gap, and cannot penetrate into the circuit part 42 of the pressure sensor 4 through the pressure transmission groove 21, fundamentally blocking the oil penetration path. The center of the action surface of the pressure head 5 is strictly coaxial with the center of the sensing surface of the sensor to ensure that the pressing torque is always transmitted axially. When the pressure head 5 is slightly offset due to uneven force on the mold 9, the lateral displacement is absorbed by the deformation compensation of the pre-compression plate 3, so that the sensor only bears axial compression loads, avoiding the impact damage of non-axial loads on sensitive components, and also compensating to avoid the problem of pressure transmission misalignment and damage to the sensor because the pressure sensor 4 and the pressure head 5 are in two independent cavities that are not connected to each other.
[0025] Please refer to Figures 2 to 3The device also includes a plug-in block 6, and a plug-in slide 222 extending from one side of the card interface 22 and connected to the side wall of the fixing seat 2, and the plug-in slide 222 is used to allow the pressure hanging head 5 to slide into the card interface 22, and a convex ring 221 is provided on the inner side of the card interface 22 to limit the axial movement of the pressure hanging head 5, and the plug-in block 6 is slidably set in the plug-in slide 222 and limits the radial movement of the pressure hanging head 5, and the plug-in block 6 is installed in the plug-in slide 222 by screws, buckles or other methods; in the process of installing the pressure hanging head 5 in the fixing device, the plug-in block 6 is first removed from the plug-in slide 222, and the pressure hanging head 5 is pushed into the card interface 22 along the plug-in slide 222, and the convex ring 221 can prevent the pressure hanging head 5 from falling off axially, and after it is in place in the card interface 22, the plug-in block 6 is embedded in the plug-in slide 222 to lock the pressure hanging head 5, and the screws are tightened to complete the installation of the pressure hanging head 5. The main body of the pressure head 5 is a screw, which rotates during use. Its head and the card-connecting interface 22 are installed with a clearance fit tolerance to ensure that the two will not contact and wear. The radial and axial movement of the pressure head 5 is limited by the plug-in block 6 and the convex ring 221. Maintenance personnel do not need to disassemble the pressure transmission groove 21 or the pre-compression plate 3 assembly, and can directly remove the pressure head 5 through the slide opening, avoiding problems such as repeated compression of seals and secondary calibration of sensors caused by disassembly and assembly in traditional integral structures, significantly shortening the maintenance cycle and reducing operational risks.
[0026] Please refer to Figures 4 to 6 In this embodiment, a plurality of unloading holes 31 are provided on one side of the pre-compression plate 3 facing the pressure head 5, and all the unloading holes 31 are arranged at intervals around the center of the action surface of the pre-compression plate 3. A local stress release structure is formed. When the pressure head 5 applies a non-uniform load, the unloading holes 31 disperse the lateral shear stress to the edge of the annular hole by inducing a deformation concentration area, thereby reducing the proportion of non-axial stress in the main area of the pre-compression plate 3, while maintaining the rigid force transmission characteristics of the central action surface, further reducing the lateral load component on the sensor sensing surface.
[0027] Please refer to Figures 2 to 5 In this embodiment, a wiring shell 23 is provided on the side of the fixing base 2, and a wiring cover 11 that matches the wiring shell 23 is provided on the side of the hanging head 1. The wiring shell 23 and the wiring cover 11 enclose a wiring channel, and the pressure sensor 4 is connected to the outside world through the wiring channel. The angle between the wiring channel and the plug-in slide 222 is greater than or equal to 90°. The pressure sensor 4 needs to be wired, and the wiring shell 23 and the wiring cover 11 form a physical isolation barrier to prevent external oil stains and dust from entering the installation device and damaging the sensor circuit; when the pressure hanging head 5 is installed, its head may be stained with liquid contaminants such as lubricating oil, causing it to stick to the plug-in slide 222. In order to prevent liquid contaminants from flowing into the wiring channel along the side wall of the fixing base 2, the angle between the two is preferably greater than or equal to 90°.
[0028] Please refer to Figures 2 to 5In this embodiment, the wiring channel includes a first wiring segment 231 connected to the pressure transmission groove 21 and a second wiring segment 232 adjacent to the first wiring segment 231. The first wiring segment 231 is used to accommodate the circuit part 42 of the pressure sensor 4, and the second wiring segment 232 is used to accommodate the wiring part 43 of the pressure sensor 4. The overall shape of the pressure sensor 4 used in the present invention is S-shaped, with a strip-shaped wiring part 43, a square circuit part 42 and a disc-shaped sensing part 41. Since the volume of the circuit part 42 is larger than that of the wiring part 43, in order to prevent shaking during the wiring process, the width and height of the two wiring segments are different. The width or height of the first wiring segment 231 is greater than that of the second wiring segment 232. At the same time, this arrangement can also prevent contaminants from entering the pressure transmission groove 21 from the edge of the circuit part 42.
[0029] Please refer to Figures 2 to 5 In this embodiment, the device further includes an isolation film 7 disposed between the pre-compression sheet 3 and the sensing portion 41 of the pressure sensor 4. The isolation film 7 is used to prevent pollutants from the first wiring segment 231 from affecting the sensing portion 41. Since the pressure transmission groove 21 is connected to the first wiring segment 231, although the circuit portion 42 blocks most of the pollutants, there is still a gap at the edge of the first wiring segment 231 that allows liquid pollutants to pass through. The isolation film 7 between the pre-compression sheet 3 and the sensing portion 41 of the pressure sensor 4 can prevent this part of the pollutants from contacting the surface of the sensing portion 41, resulting in a decrease in the pressure measurement accuracy.
[0030] Please refer to Figures 5 to 8 In this embodiment, a lead-out top block 24 is provided in the second wiring section 232, and the lead-out top block 24 can move radially along the wiring portion 43 to clamp the connection line. The lead-out top block 24 forms a symmetrical clamping force with the inner wall of the wiring channel, compresses the surface of the connection line, and forms a threadless quick locking mechanism, which suppresses the micro-motion wear of the cable under vibration conditions through uniform clamping force.
[0031] Please refer to Figures 5 to 8 In this embodiment, the wiring shell 23 is provided with a first limiting groove 25 for installing the outlet top block 24, and the outlet top block 24 is slidably set in the first limiting groove 25; the wiring cover 11 is provided with a second limiting groove 12 for installing the outlet top block 24, and the outlet top block 24 is slidably set in the second limiting groove 12. The first limiting groove 25 is located in the wiring shell 23, and the outlet top block 24 slides from the side of the wiring part 43 to clamp the line connected to the wiring part 43; the second limiting groove 12 is located in the wiring cover 11, and the outlet top block 24 slides from the top surface of the wiring part 43 to clamp the line connected to the wiring part 43; the position of the outlet top block 24 is adjusted according to the specific situation of the terminal machine 8 to ensure that the installation structure of the outlet top block 24 does not interfere with the terminal machine 8 and the mold 9.
[0032] Please refer to Figures 9 and 10The present invention also provides a terminal machine 8, including a pressure sensor 4, a drive structure 81 and a sensor connection device for a terminal machine hanging head. A pressure hanging head 5 is installed at the end of the drive structure 81, and the pressure hanging head 5 is movably connected to the clamping interface 22. The pressure sensor 4 is installed in the pressure transmission groove 21. One end of the fixed seat 2 is fixedly connected to the terminal machine platform. The drive structure 81 is used to drive the hanging head 1 to press against the mold 9 so that the pressure sensor 4 collects the terminal pressure data. The drive structure 81 is a linear motion module composed of a servo motor, a screw seat and a screw, wherein the body of the pressure hanging head 5 installed at the end of the screw is also a screw structure. The rotation of the servo motor drives the pressure hanging head 5 to move up and down so that the hanging head 1 is pressed against the mold 9, allowing the pressure sensor 4 to collect the simulated terminal pressure data. In order to prevent the pressure hanging head 5 from rotating and driving the sensor connection device to rotate during the rotation of the sensor 5, so that the wiring circuit of the pressure sensor 4 is disconnected, the fixed seat 2 is connected to the terminal machine platform.
[0033] Please refer to Figures 9 and 10 In this embodiment, the device further includes an anti-rotation baffle 13 arranged on the side of the hanging head 1. The anti-rotation baffle 13 added on the side of the hanging head 1 forms an asymmetric engagement structure with the contact surface of the mold 9. When the pressure hanging head 5 is subjected to a rotational torque, the anti-rotation baffle 13 limits the relative angular displacement between the hanging head 1 and the mold 9 through mechanical interference, ensuring that the pressure sensor 4 is always in a preset coaxial loading state, avoiding the deflection of the force transmission path caused by equipment vibration or mold 9 displacement, and enhancing the stability of the axial load.
[0034] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may also be combined, the steps may be implemented in any order, and there are many other changes in different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Although the present invention has been described in detail with reference to the above embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the above embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A sensor connection device applied to a terminal machine lifting head, characterized in that: include: A hanging head (1), wherein the top end of the hanging head (1) is used to abut against the mold (9) to transmit a pressing torque; A fixing seat (2) is mounted at the bottom end of the hanging head (1); a pressure transmission groove (21) for mounting a pressure sensor (4) is provided at one end of the fixing seat (2) close to the hanging head (1); a clamping interface (22) for mounting a pressure hanging head (5) is provided at one end of the fixing seat (2) away from the hanging head (1); the pressure transmission groove (21) and the clamping interface (22) are not connected to each other; the center of the sensing surface of the pressure sensor (4) and the center of the action surface of the pressure hanging head (5) are on the same axis; A pre-compression sheet (3) is arranged in the pressure transmission groove (21) and presses the pressure sensor (4) against the hanging head (1); the pre-compression sheet (3) is used to transmit the pressing torque of the pressure hanging head (5) to the pressure sensor (4).
2. The sensor connection device for a terminal machine hanging head according to claim 1, characterized in that: It also includes a plug-in block (6), and a plug-in slideway (222) extending from one side of the clamping interface (22) and connected to the side wall of the fixing seat (2). The plug-in slideway (222) is used to allow the pressure hanging head (5) to slide into the clamping interface (22). A convex ring (221) is provided on the inner side of the clamping interface (22) for limiting the axial movement of the pressure hanging head (5). The plug-in block (6) is detachably arranged in the plug-in slideway (222) and limits the radial movement of the pressure hanging head (5).
3. The sensor connection device for the terminal machine hanging head according to claim 2 is characterized in that: A plurality of force unloading holes (31) are arranged around a surface of the pre-compression sheet (3) facing the pressure hanging head (5), and all of the force unloading holes (31) are arranged at intervals around the center of the action surface of the pre-compression sheet (3).
4. The sensor connection device for a terminal machine hanging head according to claim 3 is characterized in that: A wiring shell (23) is provided on the side of the fixing seat (2), and a wiring cover (11) that cooperates with the wiring shell (23) is provided on the side of the hanging head (1). The wiring shell (23) and the wiring cover (11) enclose a wiring channel, and the pressure sensor (4) is connected to the outside world through the wiring channel. The angle between the wiring channel and the plug-in slideway (222) is greater than or equal to 90°.
5. The sensor connection device for a terminal machine hanging head according to claim 4, characterized in that: The wiring channel comprises a first wiring segment (231) connected to the pressure transmission groove (21) and a second wiring segment (232) adjacent to the first wiring segment (231), the first wiring segment (231) being used to accommodate a circuit portion (42) of the pressure sensor (4), and the second wiring segment (232) being used to accommodate a wiring portion (43) of the pressure sensor (4).
6. The sensor connection device for a terminal machine hanging head according to claim 5, characterized in that: A lead-out top block (24) is provided in the second wiring section (232), and the lead-out top block (24) can move radially along the wiring portion (43) to clamp the connection line.
7. The sensor connection device for a terminal machine hanging head according to claim 6, characterized in that: The wiring housing (23) is provided with a first limiting groove (25) for installing the outlet top block (24), and the outlet top block (24) is slidably disposed in the first limiting groove (25).
8. The sensor connection device for a terminal machine hanging head according to claim 6, characterized in that: The wiring cover (11) is provided with a second limiting groove (12) for installing the outlet top block (24), and the outlet top block (24) is slidably arranged in the second limiting groove (12).
9. The sensor connection device for a terminal machine hanging head according to claim 7 or 8, characterized in that: It also includes an isolation membrane (7) disposed between the pre-compression sheet (3) and the sensing portion (41) of the pressure sensor (4), the isolation membrane (7) being used to prevent contaminants from the first wiring segment (231) from affecting the sensing portion (41).
10. A terminal machine, characterized in that: It comprises a pressure sensor (4), a driving structure (81) and a sensor connection device for a terminal machine hanging head as claimed in any one of claims 1 to 9, wherein a pressure hanging head (5) is installed at the end of the driving structure (81), and the pressure hanging head (5) is movably connected to the clamping interface (22), the pressure sensor (4) is installed in the pressure transmission groove (21), one end of the fixing seat (2) is fixedly connected to the terminal machine platform, and the driving structure (81) is used to drive the hanging head (1) to press against the mold (9) so that the pressure sensor (4) collects the terminal pressure data.