Precise force control hot press head connecting displacement adjusting mechanism

Abstract

The utility model discloses a kind of hot head connecting displacement adjustment mechanism of precision force control, including rack main body and fixedly installed in the inside upper portion of rack main body voice coil motor, the inside one side of rack main body is fixedly installed with tension spring, the output end of voice coil motor is fixedly installed with pressure sensor, the inside sliding installation of rack main body has sliding rod, the outside one side of fixed seat is fixedly installed with grating ruler, the outside one side of rack main body is fixedly installed with reading head in middle, by setting voice coil motor, tension spring, pressure sensor, slide rail, slide plate, sliding rod, grating ruler, reading head and copper seat, tension spring is used to eliminate the dead weight of the body below pressure sensor, keep subsequent accurate hot-pressing processing, when carrying out hot-pressing processing, reading head is used to produce displacement change monitoring when welding, pressure sensor is used for passive pressure feedback, to control the pressure of voice coil motor output when hot-pressing, reduce the tool deformation caused by excessive pressure, improve hot-pressing precision.

Description

Technical Field

[0001] This utility model relates to the field of hot pressing equipment technology, specifically a precision force-controlled hot pressing head connection displacement adjustment mechanism. Background Technology

[0002] A metal hot press converts electrical energy into heat energy through a mold, and then uses the heat energy to heat the workpiece. The metal hot press mainly consists of a hot press head, a heater, and a pressure mechanism. When the mold comes into contact with the workpiece, the heater is energized, and the heat energy accumulates to a certain temperature within a certain time. The mold then transfers the heat to the metal material, raising its temperature to a certain level, making it easier to plastically deform.

[0003] An automated hot pressing positioning device, disclosed in CN213767614U, includes a base with a positioning frame fixedly connected to the top. Threaded rods are threaded to both the front and back of the positioning frame, with the other ends of both rods penetrating the frame and extending into its interior. The positioning frame allows for the positioning of products requiring hot pressing. By moving the two positioning components relative to or away from each other, positioning of products of different sizes can be achieved. Furthermore, the rotation of a bidirectional lead screw drives two drive rods to move relative to or away from each other, which in turn drives two L-shaped positioning blocks to move relative to or away from each other, thereby clamping and positioning the product from both sides, improving the positioning effect. Positioning can be performed according to the shape of the product, thus enhancing the functionality of the positioning device.

[0004] However, the patent still has the following problems in actual use: During the hot pressing process of the device, the pressure must be strictly controlled. Pressure is one of the most critical control parameters in the hot pressing process. Its role runs through the entire process and needs to be dynamically adjusted according to the process stage. Improper pressure control can lead to various defects, such as circuit crushing or board deformation.

[0005] Therefore, a precision force-controlled hot press head connection displacement adjustment mechanism is proposed to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this invention is to provide a precision force-controlled hot press head connection displacement adjustment mechanism to solve the problem that improper pressure control during the hot pressing process can lead to various defects, such as circuit crushing or board deformation.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a precision force-controlled hot press head connection displacement adjustment mechanism, comprising a frame body and a voice coil motor fixedly installed inside the frame body, wherein a tension spring is fixedly installed on one side of the inside of the frame body;

[0008] Also includes:

[0009] A pressure sensor is fixedly installed at the output end of the voice coil motor. A sliding rod is slidably installed inside the frame body. The top end of the tension spring is fixedly connected to the inner top surface of the frame body, and the bottom end of the tension spring is fixedly connected to the sliding rod.

[0010] The sliding rod is fixedly connected to a fixed base on one side of its front, a grating ruler is fixedly installed on the outer side of the fixed base, and a reading head is fixedly installed in the middle of the outer side of the main frame.

[0011] A copper base is fixedly installed at the bottom end of the sliding rod, and a pressure head knife holder is fixedly connected to the outside of the copper base.

[0012] Preferably, the bottom end of the pressure sensor is fixedly connected to the top end of the sliding rod via a mounting plate, and a slide rail is fixedly connected in the middle of the interior of the frame body.

[0013] Preferably, a slide plate is slidably installed inside the slide rail, one side of the front of the slide plate is fixedly connected to the slide rod, and the two sides of the slide plate are in contact with the inner walls of the slide rail.

[0014] Preferably, a limiting plate is fixedly connected to the middle of one side of the front of the frame body, and a groove is provided inside the limiting plate, and the sliding rod is slidably connected to the groove.

[0015] Preferably, the fixed seat is located above the limiting plate, and the bottom end of the sliding rod is fixedly connected to a connecting plate, which is L-shaped.

[0016] Preferably, an insulating component is fixedly connected to the bottom of the connecting plate, and the bottom of the insulating component is fixedly connected to the top of the copper base.

[0017] Preferably, there are two symmetrically arranged copper seats, and the number of pressure head tool holders is the same as that of the copper seats.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting up a voice coil motor, tension spring, pressure sensor, slide rail, slide plate, sliding rod, grating ruler, reading head, and copper base, the tension spring is used to eliminate the self-weight of the body below the pressure sensor, maintaining the subsequent accurate hot pressing process. During hot pressing, the reading head is used to monitor displacement changes generated during welding, and the pressure sensor is used for passive pressure feedback, thereby controlling the pressure output by the voice coil motor during hot pressing, reducing tooling deformation caused by excessive pressure, and improving hot pressing accuracy. The specific details are as follows:

[0019] 1. By setting up a voice coil motor, tension spring, pressure sensor, slide rail, slide plate, sliding rod, grating ruler, reading head, and copper base, the voice coil motor is used for output force and displacement. The upward pulling force generated by the tension spring is equal in magnitude and opposite in direction to the weight of the body below the pressure sensor, thereby achieving force balance and eliminating the self-weight of the body below the pressure sensor, maintaining the accuracy of subsequent hot pressing. During hot pressing, the external lifting drive device drives the main frame to descend, and the voice coil motor drives the copper base to descend and perform hot pressing. When the hot pressing head contacts the fixture, the main frame continues to descend, and the hot pressing head... The copper base will rise relative to the main frame. The copper base, connecting plate, and sliding rod will all rise. The sliding rod drives the slide plate to slide inside the slide rail. The slide rail and slide plate ensure the stability of the movement. The sliding rod also drives the fixed base and grating ruler to rise. The grating ruler is used in conjunction with the reading head. The reading head is used to monitor displacement changes during welding. The pressure sensor is used for passive pressure feedback, thereby controlling the pressure output by the voice coil motor during hot pressing, reducing tooling deformation caused by excessive pressure, improving hot pressing accuracy, and solving the problem that improper pressure control during hot pressing can lead to various defects, such as circuit crushing or board deformation.

[0020] 2. By setting a limiting plate, connecting plate, insulating component, copper base, and pressure head holder, the limiting plate is used to limit the sliding of the sliding rod and help maintain the stable vertical movement of the sliding rod. The sliding rod is fixed to the copper base through the connecting plate and insulating component. The insulating component is used to isolate the live conductor. The copper base is a conductive copper base customized according to the process. The pressure head holder is used to connect the hot pressure head, reducing the wear caused by the direct connection of the pressure head to the copper base, reducing unnecessary cost waste, and extending the service life of the pressure head. Attached Figure Description

[0021] Figure 1 This is an exploded view of the overall connection structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the voice coil motor structure of this utility model;

[0024] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0025] Figure 5 This is a schematic diagram of the grating ruler structure of this utility model;

[0026] Figure 6 This is a schematic diagram of the skateboard structure of this utility model;

[0027] Figure 7 This utility model Figure 6 Enlarged structural diagram at point B;

[0028] Figure 8 This is a schematic diagram of the pressure head holder structure of this utility model.

[0029] In the diagram: 1. Main frame; 2. Voice coil motor; 3. Tension spring; 4. Pressure sensor; 5. Slide rail; 6. Slide plate; 7. Sliding rod; 8. Limiting plate; 9. Fixing base; 10. Grating ruler; 11. Reading head; 12. Connecting plate; 13. Insulating component; 14. Copper base; 15. Pressure head knife holder. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figure 1 - Figure 8 The present invention provides a technical solution: a precision force-controlled hot press head connection displacement adjustment mechanism, including a frame body 1 and a voice coil motor 2 fixedly installed inside the frame body 1. A tension spring 3 is fixedly installed on one side of the inside of the frame body 1.

[0032] A pressure sensor 4 is fixedly installed at the output end of the voice coil motor 2. A sliding rod 7 is slidably installed inside the frame body 1. The top end of the tension spring 3 is fixedly connected to the inner top surface of the frame body 1, and the bottom end of the tension spring 3 is fixedly connected to the sliding rod 7.

[0033] The voice coil motor 2 is used to output force and displacement. The upward pulling force generated by the tension spring 3 is equal in magnitude and opposite in direction to the weight of the body below the pressure sensor 4, thereby achieving force balance and eliminating the self-weight of the body below the pressure sensor 4 to maintain the subsequent precise hot pressing process.

[0034] The bottom end of the pressure sensor 4 is fixedly connected to the top end of the sliding rod 7 via a mounting plate. A slide rail 5 is fixedly connected in the middle of the inner side of the frame body 1. A slide plate 6 is slidably installed inside the slide rail 5. One side of the front of the slide plate 6 is fixedly connected to the sliding rod 7, and the two sides of the slide plate 6 are in contact with the inner walls of the slide rail 5.

[0035] A limiting plate 8 is fixedly connected to the middle of one side of the front of the frame body 1. The limiting plate 8 has a groove inside, and the sliding rod 7 is slidably connected to the groove. The limiting plate 8 is used to limit the sliding of the sliding rod 7 and help maintain the sliding rod 7 to move stably vertically.

[0036] A fixed base 9 is fixedly connected to one side of the front of the sliding rod 7. A grating ruler 10 is fixedly installed on the outer side of the fixed base 9. A reading head 11 is fixedly installed in the middle of the outer side of the main body of the frame 1.

[0037] An external lifting drive device drives the frame body 1 to descend, and a voice coil motor 2 drives the copper base 14 to descend and perform hot pressing. When the hot pressing head contacts the tooling, the frame body 1 continues to descend, and the hot pressing head and the copper base 14 will rise relative to the frame body 1. The copper base 14, the connecting plate 12 and the sliding rod 7 will all rise. The sliding rod 7 drives the slide plate 6 to slide inside the slide rail 5. The slide rail 5 and the slide plate 6 ensure the stability of the movement.

[0038] Furthermore, the sliding rod 7 drives the fixed base 9 and the grating ruler 10 to rise. The grating ruler 10 is used in conjunction with the reading head 11. The reading head 11 is used to monitor displacement changes during welding. The pressure sensor 4 is used for passive pressure feedback, thereby controlling the pressure output by the voice coil motor 2 during hot pressing, reducing tooling deformation caused by excessive pressure, and improving hot pressing accuracy.

[0039] The fixed base 9 is located above the limiting plate 8. The bottom end of the sliding rod 7 is fixedly connected to the connecting plate 12. The connecting plate 12 is L-shaped. The bottom of the connecting plate 12 is fixedly connected to the insulating part 13. The bottom of the insulating part 13 is fixedly connected to the top of the copper base 14.

[0040] A copper base 14 is fixedly installed at the bottom of the sliding rod 7. A pressure head holder 15 is fixedly connected to the outside of the copper base 14. An insulating component 13 is used to isolate live conductors. The copper base 14 is customized according to the process and has conductivity. The pressure head holder 15 is used to connect the hot pressure head, reduce the wear caused by the direct connection of the pressure head to the copper base 14, reduce unnecessary cost waste, and extend the service life of the pressure head.

[0041] There are two symmetrical copper bases 14, and the number of pressure head tool holders 15 is the same as that of copper bases 14.

[0042] Working principle:

[0043] Before using this precision force-controlled hot press head to connect to the displacement adjustment mechanism, it is necessary to check the overall condition of the device to ensure it can function normally. Figure 1 - Figure 8As shown, the voice coil motor 2 is used for output force and displacement. The upward pulling force generated by the tension spring 3 is equal in magnitude and opposite in direction to the weight of the body below the pressure sensor 4, thereby achieving force balance and eliminating the self-weight of the body below the pressure sensor 4 to maintain the subsequent precise hot pressing process. During hot pressing, the external lifting drive device drives the frame body 1 to descend, and the voice coil motor 2 drives the copper seat 14 to descend and perform hot pressing. When the hot pressing head contacts the tooling, the frame body 1 continues to descend, and the hot pressing head and the copper seat 14 will rise relative to the frame body 1. The copper seat 14, the connecting plate 12, and the sliding rod 7 Both will rise, and the sliding rod 7 will drive the slide plate 6 to slide inside the slide rail 5. The slide rail 5 and the slide plate 6 ensure the stability of the movement. The limiting plate 8 is used to limit the sliding of the sliding rod 7 and help keep the sliding rod 7 moving vertically in a stable manner. The sliding rod 7 drives the fixed base 9 and the grating ruler 10 to rise. The grating ruler 10 is used in conjunction with the reading head 11. The reading head 11 is used to monitor the displacement changes generated during welding. The insulating part 13 is used to isolate the live conductor. The pressure sensor 4 is used for passive pressure feedback, thereby controlling the pressure output by the voice coil motor 2 during hot pressing, reducing the deformation of the tooling caused by excessive pressure, and improving the hot pressing accuracy.

[0044] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A precision force-controlled hot press head connection displacement adjustment mechanism, comprising a frame body (1) and a voice coil motor (2) fixedly installed inside the frame body (1) and above it, wherein a tension spring (3) is fixedly installed on one side inside the frame body (1). Its features are, Also includes: A pressure sensor (4) is fixedly installed at the output end of the voice coil motor (2), a sliding rod (7) is slidably installed inside the frame body (1), the top end of the tension spring (3) is fixedly connected to the inner top surface of the frame body (1), and the bottom end of the tension spring (3) is fixedly connected to the sliding rod (7). Among them, a fixed seat (9) is fixedly connected to one side of the front of the sliding rod (7), a grating ruler (10) is fixedly installed on the outer side of the fixed seat (9), and a reading head (11) is fixedly installed in the middle of the outer side of the frame body (1). A copper base (14) is fixedly installed at the bottom end of the sliding rod (7), and a pressure head knife holder (15) is fixedly connected to the outside of the copper base (14).

2. The precision force-controlled hot press head connection displacement adjustment mechanism according to claim 1, characterized in that: The bottom end of the pressure sensor (4) is fixedly connected to the top end of the sliding rod (7) through the mounting plate, and a slide rail (5) is fixedly connected in the middle of the frame body (1).

3. The precision force-controlled hot press head connection displacement adjustment mechanism according to claim 2, characterized in that: The slide rail (5) has a slide plate (6) slidably installed inside it. The front side of the slide plate (6) is fixedly connected to the slide rod (7), and the two sides of the slide plate (6) are in contact with the inner wall of the slide rail (5).

4. The precision force-controlled hot press head connection displacement adjustment mechanism according to claim 1, characterized in that: A limiting plate (8) is fixedly connected to the middle of one side of the front of the frame body (1). The limiting plate (8) has a groove inside, and the sliding rod (7) is slidably connected to the groove.

5. The precision force-controlled hot press head connection displacement adjustment mechanism according to claim 4, characterized in that: The fixed seat (9) is located above the limiting plate (8), and the bottom end of the sliding rod (7) is fixedly connected to the connecting plate (12), which is L-shaped.

6. The precision force-controlled hot press head connection displacement adjustment mechanism according to claim 5, characterized in that: An insulating component (13) is fixedly connected to the bottom of the connecting plate (12), and the bottom of the insulating component (13) is fixedly connected to the top of the copper base (14).

7. The precision force-controlled hot press head connection displacement adjustment mechanism according to claim 1, characterized in that: Two copper bases (14) are symmetrically arranged, and the number of pressure head knife holders (15) is the same as that of copper bases (14).

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