Auxiliary centering mechanism
By cooperating with a dual-axis hydraulic cylinder and a pressure sensor, centering adjustment is performed using force changes, which solves the adjustment hysteresis problem of the centering mechanism in the existing technology and improves the test accuracy and adaptability of the thermal conductivity coefficient tester.
Patent Information
- Application Number
- CN202422589862.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-10-25
AI Technical Summary
The existing centering mechanism of the thermal conductivity tester is adjusted by measuring the offset distance, which has a hysteresis and leads to insufficient test accuracy.
It uses a dual-axis hydraulic cylinder and a pressure sensor to measure the change in force to achieve rapid centering adjustment and adapt to various sizes of clamped objects.
It achieves fast and accurate centering adjustment, improves the test accuracy of the thermal conductivity tester, and adapts to different sizes of clamps.
Smart Images
Figure CN223377238U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of testing devices, in particular to an auxiliary centering mechanism. Background Art
[0002] As vehicle development gradually tends towards new energy, the thermal management of new energy vehicles has shown its vital importance. Among them, the thermal conductivity tester is a very critical experimental equipment for automotive thermal management, so the test accuracy of the thermal conductivity tester is particularly important; the thermal conductivity tester needs to be accurately aligned to ensure the accurate fit of the material and then test the accurate data of the material. However, the current alignment mechanism performs corresponding adjustments by measuring the offset distance. When adjusting, a large distance of displacement has already occurred, and there is a certain lag. Utility Model Content
[0003] The purpose of the present invention is to provide an auxiliary centering mechanism that can quickly adjust the centering by measuring the change in force, and is adaptable to clamping objects of various sizes, thus having high practicality.
[0004] The technical solution of the utility model is as follows: an auxiliary centering mechanism, including a machine base, a moving mechanism is provided on the machine base, a fixed seat is provided on the moving end of the moving mechanism, a double-axis hydraulic cylinder and a mounting seat are provided on the fixed seat, a threaded adjustment rod is provided on the mounting seat, and a pressure sensor is provided on the end of the adjustment rod; the piston rod on one side of the double-axis hydraulic cylinder faces the pressure sensor, and the piston rod on the other side of the double-axis hydraulic cylinder is provided with a centering clamp.
[0005] In the above-mentioned auxiliary centering mechanism, the machine base is provided with a longitudinal guide rail that is slidably connected to the fixed base; the moving mechanism includes a top plate arranged on the top of the machine base, a driving motor is provided on the top plate, and the output end of the driving motor is provided with a driving member that is rotatably connected to the top plate, and the driving member is provided with a matching screw, and the lower end of the screw is fixedly connected to the top of the fixed base.
[0006] In the aforementioned auxiliary centering mechanism, a driving pulley is provided at the output end of the driving motor, and a transmission belt is provided on both the driving pulley and the driving member.
[0007] In the aforementioned auxiliary centering mechanism, the mounting seat is a hollow frame, one side of the mounting seat is connected to the fixed seat and inserted with the corresponding side piston rod of the dual-axis hydraulic cylinder, and the adjusting rod is arranged on the other side of the fixed seat.
[0008] In the aforementioned auxiliary centering mechanism, the centering clamping member is a V-shaped block.
[0009] In the aforementioned auxiliary centering mechanism, a control component connecting the pressure sensor and the control circuit of the dual-axis hydraulic cylinder is provided on the machine base.
[0010] Compared with the prior art, the present invention is used as a set, that is, two auxiliary centering mechanisms place the clamped object between the two centering clamps together, and the clamped object squeezes the piston rod through the center clamp, and then squeezes the pressure sensor to generate a value, and the position of the front pressure sensor is adjusted by rotating the adjustment rod, so that the pressure sensor value is adjusted to a suitable reference value that matches the current size of the clamp; the movement of the moving mechanism starts the test, and when the clamp is subjected to force and begins to move, the change in its force will be transmitted to the pressure sensor through the piston rod. After the value changes, the corresponding dual-axis hydraulic cylinder is started and reversely driven in the direction of force change until the pressure sensor returns to the reference value, thereby achieving stable centering; the present invention measures the change in force to perform rapid centering adjustment, and is adaptable to a variety of clamps of different sizes, and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a structural diagram of the utility model;
[0012] Figure 2 This is a schematic diagram of the structure of the utility model without the moving mechanism;
[0013] Figure 3 This is a circuit connection diagram of the utility model;
[0014] Figure 4 It is a schematic diagram of the use of the present utility model.
[0015] The markings in the accompanying drawings are: 2-machine base; 3-moving mechanism; 4-fixed seat; 5-dual-axis hydraulic cylinder; 6-mounting seat; 7-adjusting rod; 8-pressure sensor; 9-centering clamping member; 10-longitudinal guide rail; 11-top plate; 12-drive motor; 13-drive member; 14-screw; 15-driving pulley; 16-transmission belt; 17-control component. DETAILED DESCRIPTION
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, but they are not intended to limit the present invention.
[0017] Embodiment: An auxiliary centering mechanism, as shown in the attached Figure 1 and attached Figure 2As shown, it includes a machine base 2, a moving mechanism 3 is installed on the machine base 2, a fixed seat 4 is installed on the moving end of the moving mechanism 3, a double-axis hydraulic cylinder 5 and a mounting seat 6 are installed on the fixed seat 4, the double-axis hydraulic cylinder includes a cylinder body, a single piston rod is installed in the cylinder body, and a driving piston is provided on the piston rod. The driving piston divides the cylinder body into two rod chambers, and oil ports are opened on both rod chambers. The oil inlet and outlet of the oil ports on both sides respectively cause a pressure difference to be generated in the driving piston, thereby enabling the piston rod to achieve flexible movement in two directions, which can be obtained commercially and will not be described here. An adjusting rod 7 is threaded on the mounting seat 6, and the end of the adjusting rod 7 is equipped with a piezoresistive pressure sensor 8; the piston rod on one side of the double-axis hydraulic cylinder 5 faces the pressure sensor 8, and the piston rod on the other side of the double-axis hydraulic cylinder 5 is provided with a centering clamp 9; a longitudinal guide is integrally formed on the machine base 2 and is slidably connected to the fixed seat 4. The movable mechanism 3 comprises a top plate 11 arranged on the top of the machine base 2, and a driving motor 12 is equipped on the top plate 11, and the output end of the driving motor 12 is equipped with a driving member 13 rotatably connected to the top plate 11, and a lead screw 14 is matched on the driving member 13, and the lower end of the lead screw 14 is fixedly connected to the top of the fixed seat 4. The rotation of the driving member drives the lead screw to move, thereby controlling the up and down movement of the fixed seat; the output end of the driving motor 12 is equipped with a driving pulley 15, and the driving pulley 15 and the driving member 13 are jointly provided with a transmission belt 16, which transmits force through the transmission belt for greater stability; the mounting seat 6 is a hollow frame shape, and one side of the mounting seat 6 is connected to the fixed seat 4 and is inserted through the corresponding side piston rod of the dual-axis hydraulic cylinder 5, and the adjusting rod 7 is arranged on the other side of the fixed seat 4 for easy observation and adjustment from the side; the centering clamping member 9 is a V-shaped block; as shown in the attached Figure 3 As shown, the machine base 2 is equipped with a control component 17 connected to the pressure sensor 8 and the control circuit of the dual-axis hydraulic cylinder 5. The control component obtains the numerical signals of the pressure sensors on both sides, processes the numerical signals, and outputs the corresponding dual-axis hydraulic cylinder 5 oil inlet and outlet control signals to achieve regulation.
[0018] Working principle: as attached Figure 4 As shown, they are used as a set, that is, the two auxiliary centering mechanisms place the clamped object between the two pairs of centering clamps 9 together, and the clamped object squeezes the piston rod through the center clamp 9, and then squeezes the pressure sensor 8 to generate a value, and the position of the front pressure sensor 8 is adjusted by rotating the adjusting rod 7, so that the value of the pressure sensor 8 is adjusted to a suitable reference value that matches the current size of the clamp; the moving mechanism 3 starts to test, when the clamp is subjected to force and begins to move, its force change will be transmitted to the pressure sensor 8 through the piston rod, and the corresponding dual-axis hydraulic cylinder 5 is started after the value changes, and the force change direction is reversed until the pressure sensor 8 returns to the reference value, thereby achieving stable centering; the utility model measures the change in force to perform rapid centering adjustment, and is adaptable to a variety of clamps of different sizes, and has good practicality.
[0019] The above embodiments merely represent implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. Furthermore, in these embodiments, the terms "up," "down," "left," "right," "front," and "back" merely represent relative positions and do not represent absolute positions. It should be noted that a person skilled in the art could make various modifications and improvements without departing from the concept of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.
Claims
1. An auxiliary centering mechanism, characterized in that; The invention comprises a machine base (2), a moving mechanism (3) is provided on the machine base (2), a fixed seat (4) is provided on the moving end of the moving mechanism (3), a double-axis hydraulic cylinder (5) and a mounting seat (6) are provided on the fixed seat (4), a screw-matched adjusting rod (7) is provided on the mounting seat (6), and a pressure sensor (8) is provided at the end of the adjusting rod (7); a piston rod on one side of the double-axis hydraulic cylinder (5) faces the pressure sensor (8), and a centering clamp (9) is provided on the piston rod on the other side of the double-axis hydraulic cylinder (5).
2. The auxiliary centering mechanism according to claim 1, characterized in that: The machine base (2) is provided with a longitudinal guide rail (10) which is slidably connected to the fixed base (4); the moving mechanism (3) comprises a top plate (11) arranged on the top of the machine base (2); a driving motor (12) is provided on the top plate (11); an output end of the driving motor (12) is provided with a driving member (13) which is rotatably connected to the top plate (11); a matching lead screw (14) is provided on the driving member (13); and the lower end of the lead screw (14) is fixedly connected to the top of the fixed base (4).
3. The auxiliary centering mechanism according to claim 2, characterized in that: The output end of the driving motor (12) is provided with a driving pulley (15), and a transmission belt (16) is provided on the driving pulley (15) and the driving member (13).
4. The auxiliary centering mechanism according to claim 1, characterized in that: The mounting seat (6) is in the shape of a frame with a hollow interior. One side of the mounting seat (6) is connected to the fixing seat (4) and is inserted through the corresponding side piston rod of the double-axis hydraulic cylinder (5). The adjusting rod (7) is arranged on the other side of the fixing seat (4).
5. The auxiliary centering mechanism according to claim 1, characterized in that: The centering clamping piece (9) is a V-shaped block.
6. The auxiliary centering mechanism according to claim 1, characterized in that: The machine base (2) is provided with a control component (17) for connecting the pressure sensor (8) and the control circuit of the dual-axis hydraulic cylinder (5).