Hydraulic control system of circuit board manufacturing equipment

Abstract

The utility model relates to the field of circuit board pressing, and discloses a hydraulic control system of circuit board manufacturing equipment, which comprises a driving hydraulic oil pump system, a motor system, an oil tank and a driving oil cylinder system, the driving hydraulic oil pump system is connected with the oil tank; the driving oil cylinder system comprises a main cylinder and an auxiliary cylinder; the hydraulic system further comprises a fast oil inlet way and a proportional pressurizing oil way, the fast oil inlet way is used for being connected with the auxiliary cylinder, and the proportional pressurizing oil way is used for being connected with the main cylinder. The driving hydraulic oil pump system comprises a first hydraulic pump and a second hydraulic pump; the first hydraulic pump is communicated with the fast oil inlet path, and the second hydraulic pump is communicated with the proportional pressurizing oil path; and the fast oil inlet path and the proportional pressurizing oil path are respectively communicated with the driving oil cylinder system. Through up-down fast forward and fast backward, the auxiliary cylinder pulls the load and the main cylinder to move, in the pressurizing process, the design of the hydraulic system can achieve slow linear proportion pressurizing, and the linear proportion pressurizing device is suitable for the requirements of actual working conditions of pressing electronic circuit board products.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of press-fit circuit boards, and more particularly to a hydraulic control system of a circuit board manufacturing equipment. BACKGROUND

[0002] Hydraulic hot presses are key equipment that provide power through hydraulic systems, achieve high-precision pressure control and motion execution, and are widely used in electronic circuit board pressing, composite material laminating molding and other processing fields with high requirements for precision and stability. In these application scenarios, hydraulic hot presses can achieve close combination of processing materials under high temperature and high pressure by precisely controlling the pressing force and pressing time, ensuring the dimensional accuracy, material strength and surface quality of the products. Its wide applicability makes it one of the indispensable equipment in modern industrial production.

[0003] The core function of a hydraulic hot press is to precisely regulate the pressure, flow and direction of hydraulic oil through the hydraulic system, thereby achieving dynamic switching of various working conditions during hot pressing processing. These working conditions mainly include fast forward, work forward, pressure maintaining and pressure releasing stages. In the fast forward stage, the press head approaches the workpiece at a high speed to improve production efficiency; in the work forward stage, the press head completes the processing process at a low speed and high pressure to ensure the precision and uniformity of pressing; in the pressure maintaining stage, the material is fully combined by maintaining the pressure to eliminate internal stress; in the pressure releasing stage, the cycle is completed by controlling the pressure release and preparing for the next process. The close connection and precise control of each working condition are the key to ensuring processing quality. With the development of industrial technology, hydraulic hot presses not only need to meet the demand for high-precision processing, but also need to adapt to diversified materials and complex processes. For example, in the pressing process of electronic circuit boards, the equipment needs to be able to adjust multi-stage pressure and temperature to adapt to different numbers of layers and materials. In addition, for the hot pressing of composite materials, the equipment needs to be able to operate stably for a long time under high temperature and high pressure. Due to these complex process requirements, the design and control technology of the hydraulic system of the hydraulic hot press become the key factors determining its performance.

[0004] However, in the existing hydraulic system of the hot press, when completing a cycle of working conditions, the hydraulic system cannot achieve the slow linear proportional pressurization of the pressure oil in the pipeline over time during the pressing and pressurizing work-in stage, and the over-fast unloading of the oil cylinder during the pressure releasing stage leads to excessive local pressure in the oil circuit. SUMMARY

[0005] To overcome the defects of the existing technology that the pressure oil in the pipeline is slowly linearly pressurized over time during pressurization, and the over-fast unloading of the oil cylinder during pressure release leads to excessive local pressure in the oil circuit, the present application provides a hydraulic control system of a circuit board manufacturing equipment.

[0006] To solve the above technical problems, the technical scheme of the present application is as follows:

[0007] A hydraulic control system of a circuit board manufacturing equipment, comprising a driving hydraulic oil pump system, a motor system and an oil tank; the driving hydraulic oil pump system is in communication with the oil tank; the motor system is connected with the driving hydraulic oil pump system;

[0008] Further comprising a driving oil cylinder system; the driving oil cylinder system comprises a main cylinder and an auxiliary cylinder;

[0009] Further comprising a fast-forward oil path and a proportional pressure boosting oil path; the fast-forward oil path is used for connecting with the auxiliary cylinder, and the proportional pressure boosting oil path is used for connecting with the main cylinder;

[0010] The driving hydraulic oil pump system comprises a first hydraulic pump and a second hydraulic pump; the motor system comprises a first motor and a second motor; the first motor is connected with the first hydraulic pump, and the second motor is connected with the second hydraulic pump;

[0011] The first hydraulic pump is in communication with the fast-forward oil path, and the second hydraulic pump is in communication with the proportional pressure boosting oil path; the fast-forward oil path and the proportional pressure boosting oil path are respectively in communication with the driving oil cylinder system.

[0012] Further, an output end of the first hydraulic pump is provided with a first overflow module for adjusting the pressure of the fast-forward oil path at a connecting branch of the fast-forward oil path;

[0013] The fast-forward oil path is further connected with a first electromagnetic reversing valve, a hydraulic control check valve and a check valve in sequence on the pipeline after pressure adjustment; an oil outlet of one end of the first electromagnetic reversing valve is in communication with the hydraulic control check valve and the check valve in sequence and then connected with a rodless cavity of the auxiliary cylinder;

[0014] An oil outlet of the other end of the first electromagnetic reversing valve is connected with a cylinder cavity of the auxiliary cylinder.

[0015] Further, the first overflow module is an electromagnetic overflow valve for adjusting the oil pressure output from the first hydraulic pump to the fast-forward oil path.

[0016] Further, an output end of the second hydraulic pump is provided with a second overflow module for adjusting the pressure of the proportional pressure boosting oil path at a branch connecting position of the proportional pressure boosting oil path;

[0017] The pressure oil of the proportional pressure boosting oil path is connected with the main cylinder through a check valve after pressure adjustment by the second overflow module.

[0018] Further, the second overflow module is a proportional electromagnetic overflow valve, used for controlling the oil pressure output by the second hydraulic pump to the proportional pressure boosting oil path, and used for controlling the oil pressure of the proportional pressure boosting oil path to be linearly proportionally boosted in the boosting process.

[0019] Further, the hydraulic control system further comprises a slow pressure relief oil path connected to a branch of the proportional pressure boosting oil path and a connection section of the main cylinder oil inlet, and the slow pressure relief oil path comprises a second electromagnetic switching valve used for unloading hydraulic oil from the main cylinder.

[0020] Further, the second electromagnetic switching valve is further connected to a throttle valve and the main cylinder in sequence, and the throttle valve is used for reducing the pressure and flow of the pressure oil when the pressure oil is relieved and returned to the main cylinder.

[0021] Further, the hydraulic control system further comprises a fast pressure relief module, and the fast pressure relief module comprises a third electromagnetic switching valve and a fourth electromagnetic switching valve.

[0022] The third electromagnetic switching valve is in communication with the auxiliary cylinder of the fast feeding oil path, and is used for fast unloading of the rodless cavity of the auxiliary cylinder.

[0023] The fourth electromagnetic switching valve is in communication with the main cylinder of the proportional pressure boosting oil path, and is used for fast unloading of the pressure oil in the main cylinder.

[0024] Further, the hydraulic control system further comprises a pressure gauge used for detecting pipeline pressure, a first pressure sensor arranged on the fast feeding oil path and used for detecting pressure, and a second pressure sensor arranged on the proportional pressure boosting oil path and used for detecting pressure.

[0025] Further, the oil tank is further provided with an air filter used for filtering impurities of the pressure oil, and is further provided with a liquid level and temperature gauge used for visually observing the liquid level and temperature of the oil tank.

[0026] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0027] The utility model relates to the field of press -fitting circuit board, and design a kind of hydraulic control system of circuit board manufacturing equipment, and the system is by up and down fast feeding fast return, and auxiliary cylinder is pulled load and main cylinder movement, and in boosting process, the design of hydraulic system can reach slowly linear proportionally boost, it is suitable for the actual working condition required of press -fitting electronic circuit board product;And unloading stage can realize slow, fast unloading in stage, protect hydraulic oil path to prevent local hydraulic pressure too large, improve production efficiency and peace of mind. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is the hydraulic principle diagram of the hydraulic control system of the utility model embodiment circuit board manufacturing equipment;

[0029] Figure 2 A schematic diagram of a driving oil cylinder system of the embodiment of the present application;

[0030] Figure 3 A schematic diagram of a first overflow module of the embodiment of the present application;

[0031] Figure 4 A schematic diagram of a second overflow module of the embodiment of the present application;

[0032] Figure 5 A schematic diagram of an electromagnetic reversing valve module for slow pressure relief and fast pressure relief of the embodiment of the present application;

[0033] 1, driving hydraulic system; 101, first hydraulic pump; 102, second hydraulic pump;

[0034] 2, fast forward oil path; 201, first overflow module; 202, first electromagnetic reversing valve; 203, hydraulic control check valve; 204, check throttle valve;

[0035] 3, proportional pressure boosting oil path; 301, second overflow module; 302, check valve;

[0036] 4, driving oil cylinder system; 401, main cylinder; 402, auxiliary cylinder; 4021, rodless cavity; 4022, rod cavity; 5, oil tank; 501, air filter; 502, liquid level and temperature gauge;

[0037] 6, slow pressure relief oil path; 601, second electromagnetic reversing valve; 602, throttle valve;

[0038] 7, fast pressure relief module; 701, third electromagnetic reversing valve; 702, fourth electromagnetic reversing valve; 703, fifth electromagnetic reversing valve; 704, liquid filling valve;

[0039] 801, pressure gauge; 802, first pressure sensor; 803, second pressure sensor. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the present application will be described clearly and completely below in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the described embodiments, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0041] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0042] Example 1

[0043] like Figures 1-3 As shown, this embodiment discloses a hydraulic control system for a circuit board manufacturing equipment, including a driving hydraulic oil pump system 1, a motor system 9, and an oil tank 5; the driving hydraulic oil pump system 1 is connected to the oil tank 5; the motor system 9 is connected to the driving hydraulic oil pump system 1; it also includes a driving cylinder system 4; the driving cylinder system 4 includes a main cylinder 401 and an auxiliary cylinder 402;

[0044] It also includes a fast-advance oil circuit 2 and a proportional booster oil circuit 3. The fast-advance oil circuit 2 is used to connect to the auxiliary cylinder 402, and the proportional booster oil circuit 3 is used to connect to the main cylinder 401. The drive hydraulic pump system 1 includes a first hydraulic pump 101 and a second hydraulic pump 102. The motor system 9 includes a first motor 901 and a second motor 902. The first motor 901 is connected to the first hydraulic pump 101, and the second motor 902 is connected to the second hydraulic pump 102. The first hydraulic pump 101 is connected to the fast-advance oil circuit 2, and the second hydraulic pump 102 is connected to the proportional booster oil circuit 3. The fast-advance oil circuit 2 and the proportional booster oil circuit 3 are respectively connected to the drive cylinder system 4.

[0045] It also includes a pressure gauge 801 for detecting pipeline pressure, a first pressure sensor 802 installed on the fast-inlet oil circuit 2 for detecting pressure, and a second pressure sensor 803 installed on the proportional booster oil circuit 3 for detecting pressure.

[0046] The oil tank 5 is also equipped with an air filter 501 for filtering impurities in the pressurized oil; a level and temperature gauge 502 is also provided on one side for visually measuring the oil level and temperature in the tank.

[0047] A first overflow module 201 for adjusting the pressure of the fast-advance oil circuit 2 is provided at the connection branch between the output end of the first hydraulic pump 101 and the fast-advance oil circuit 2.

[0048] The quick forward oil path 2 is further connected with the first electromagnetic reversing valve 202, the hydraulic control check valve 203 and the one-way throttle valve 204 in sequence after the pressure regulation, the oil outlet of one end of the first electromagnetic reversing valve 202 is in communication with the hydraulic control check valve 203 and the one-way throttle valve 204 in sequence, and then connected with the rodless cavity 4021 of the auxiliary cylinder 402;

[0049] The oil outlet of the other end of the first electromagnetic reversing valve 202 is connected with the cylinder cavity 4022 of the auxiliary cylinder 402.

[0050] The first overflow module 201 is an electromagnetic overflow valve, which is used for regulating the oil pressure output by the first hydraulic pump 101 to the quick forward oil path 2.

[0051] In the specific implementation process, in the rapid rising stage: the first overflow module 201, the first electromagnetic reversing valve 202 and the first motor 901 are powered, the P port of the first electromagnetic reversing valve 202 is in communication with the B port, and the A port is in communication with the T port. After the pressure oil is regulated by the overflow valve of the first overflow module 201, the pressure oil is reversed by the first electromagnetic reversing valve 202, and the pressure oil flows to the B port of the first electromagnetic reversing valve 202, and then successively passes through the normally open port of the hydraulic control check valve 203 and the normally open port of the one-way throttle valve 204, and enters the rodless cavity 4021 of the auxiliary cylinder 402, and drives the oil cylinder to go up; after the auxiliary cylinder 402 goes up to the set pressure greater than the starting pressure, the first pressure sensor 802 transmits a signal to the PLC to control the next action; at this time, the pressure oil in the rod cavity 4022 of the auxiliary cylinder 401 returns to the oil tank 5 through the T port of the first electromagnetic reversing valve 202.

[0052] Embodiment 2

[0053] As shown in Figures 1-4 Another hydraulic control system of a circuit board manufacturing equipment is disclosed in the embodiment, which comprises a driving hydraulic oil pump system 1, a motor system 9 and an oil tank 5; the driving hydraulic oil pump system 1 is in communication with the oil tank 5; the motor system 9 is connected with the driving hydraulic oil pump system 1; the hydraulic control system further comprises a driving oil cylinder system 4; the driving oil cylinder system 4 comprises a main cylinder 401 and an auxiliary cylinder 402;

[0054] The hydraulic control system further comprises a quick forward oil path 2 and a proportional pressure boosting oil path 3; the quick forward oil path 2 is used for being connected with the auxiliary cylinder 402, and the proportional pressure boosting oil path 3 is used for being connected with the main cylinder 401; the driving hydraulic oil pump system 1 comprises a first hydraulic pump 101 and a second hydraulic pump 102; the motor system 9 comprises a first motor 901 and a second motor 902; the first motor 901 is connected with the first hydraulic pump 101, and the second motor 902 is connected with the second hydraulic pump 102; the first hydraulic pump 101 is in communication with the quick forward oil path 2, and the second hydraulic pump 102 is in communication with the proportional pressure boosting oil path 3; the quick forward oil path 2 and the proportional pressure boosting oil path 3 are respectively in communication with the driving oil cylinder system 4.

[0055] Also included are a pressure gauge 801 for detecting the pressure of the pipeline, a first pressure sensor 802 arranged on the fast-forward oil way 2 to detect the pressure, and a second pressure sensor 803 arranged on the proportional pressure boosting oil way 3 to detect the pressure.

[0056] The oil tank 5 is also provided with an air filter 501 for filtering impurities in the pressure oil; and is also provided on one side with a liquid level and temperature gauge 502 for visually checking the liquid level and temperature of the oil tank.

[0057] The output end of the second hydraulic pump 102 is provided with a second overflow module 301 for adjusting the pressure of the proportional pressure boosting oil way 3 at the branch connection of the proportional pressure boosting oil way 3;

[0058] The pressure oil passing through the proportional pressure boosting oil way 3 is adjusted in pressure by the second overflow module 301, and then connected to the main cylinder 401 through the one-way valve 302.

[0059] The second overflow module 301 is a proportional electromagnetic overflow valve, which is used to control the oil pressure output by the second hydraulic pump 102 to the proportional pressure boosting oil way 3, and is used to control the oil pressure of the proportional pressure boosting oil way 3 to be linearly proportional during the pressure boosting process.

[0060] In the pressure boosting work stage: the second overflow module 301 and the second motor 902 are powered on, the high-pressure oil pumped by the second hydraulic pump 102 after passing through the oil tank 5 is adjusted in pressure by the second overflow module 301 (i.e. proportional overflow valve), and then enters the main cylinder 401 through the one-way valve 302, and the pressure in the main cylinder 401 and the auxiliary cylinder 402 is boosted to make the pressure in the pressure bonding interval of the driving oil cylinder system 4 rise, and the slope ratio of the pressure rise of the pressure oil in the pipeline and the time is adjusted by the proportional overflow valve, so that the pressure of the pressure oil in the pipeline and the time are linearly related.

[0061] In the pressure maintaining stage: the electromagnets and motors in the oil way are not powered on, and the pressure oil in the rod cavity 4022 of the oil cylinder 5 is not unloaded, so that the driving oil cylinder system 4 keeps the pressure between the extension and the pressure bonding plate, and ensures that the electronic circuit board can be tightly bonded.

[0062] Embodiment 3

[0063] As shown in Figures 1-5 Another hydraulic control system of a circuit board manufacturing equipment is disclosed in the embodiment, which comprises a driving hydraulic oil pump system 1, a motor system 9, an oil tank 5, the driving hydraulic oil pump system 1 being in communication with the oil tank 5, the motor system 9 being connected with the driving hydraulic oil pump system 1, further comprising a driving oil cylinder system 4, the driving oil cylinder system 4 comprising a main cylinder 401 and an auxiliary cylinder 402.

[0064] The drive hydraulic pump system 1 comprises a first hydraulic pump 101 and a second hydraulic pump 102; the motor system 9 comprises a first motor 901 and a second motor 902; the first motor 901 is connected with the first hydraulic pump 101, and the second motor 902 is connected with the second hydraulic pump 102; the first hydraulic pump 101 is connected with the fast oil path 2, and the second hydraulic pump 102 is connected with the proportional pressure oil path 3; the fast oil path 2 and the proportional pressure oil path 3 are connected with the drive oil cylinder system 4 respectively.

[0065] The drive hydraulic pump system 1 comprises a first hydraulic pump 101 and a second hydraulic pump 102; the motor system 9 comprises a first motor 901 and a second motor 902; the first motor 901 is connected with the first hydraulic pump 101, and the second motor 902 is connected with the second hydraulic pump 102; the first hydraulic pump 101 is connected with the fast oil path 2, and the second hydraulic pump 102 is connected with the proportional pressure oil path 3; the fast oil path 2 and the proportional pressure oil path 3 are connected with the drive oil cylinder system 4 respectively.

[0066] The oil tank 5 is also provided with an air filter 501 for filtering impurities in the pressure oil; and one side is also provided with a liquid level and temperature gauge 502 for visually observing the liquid level and temperature of the oil tank.

[0067] The drive hydraulic pump system 1 comprises a first hydraulic pump 101 and a second hydraulic pump 102; the motor system 9 comprises a first motor 901 and a second motor 902; the first motor 901 is connected with the first hydraulic pump 101, and the second motor 902 is connected with the second hydraulic pump 102; the first hydraulic pump 101 is connected with the fast oil path 2, and the second hydraulic pump 102 is connected with the proportional pressure oil path 3; the fast oil path 2 and the proportional pressure oil path 3 are connected with the drive oil cylinder system 4 respectively.

[0068] The second electromagnetic reversing valve 601 is also connected with a throttle valve 602 and the master cylinder 401 in sequence; the throttle valve is used to reduce the pressure and flow of the pressure oil when the pressure oil is discharged from the master cylinder 401.

[0069] The drive hydraulic pump system 1 comprises a first hydraulic pump 101 and a second hydraulic pump 102; the motor system 9 comprises a first motor 901 and a second motor 902; the first motor 901 is connected with the first hydraulic pump 101, and the second motor 902 is connected with the second hydraulic pump 102; the first hydraulic pump 101 is connected with the fast oil path 2, and the second hydraulic pump 102 is connected with the proportional pressure oil path 3; the fast oil path 2 and the proportional pressure oil path 3 are connected with the drive oil cylinder system 4 respectively.

[0070] The drive hydraulic pump system 1 comprises a first hydraulic pump 101 and a second hydraulic pump 102; the motor system 9 comprises a first motor 901 and a second motor 902; the first motor 901 is connected with the first hydraulic pump 101, and the second motor 902 is connected with the second hydraulic pump 102; the first hydraulic pump 101 is connected with the fast oil path 2, and the second hydraulic pump 102 is connected with the proportional pressure oil path 3; the fast oil path 2 and the proportional pressure oil path 3 are connected with the drive oil cylinder system 4 respectively.

[0071] In the slow pressure relief stage: the second electromagnetic reversing valve 601 is powered on, at which time the pressure oil in the master cylinder 401 starts to be slowly relieved. If the pressure in the pressurizing stage is too high, the second electromagnetic reversing valve 601 is started to be powered on, so that the pressure oil is relieved back to the oil tank 5 through the second electromagnetic reversing valve 601 of the slow pressure relief oil path 6 to reduce the pressure.

[0072] In the rapid pressure relief stage: the third electromagnetic reversing valve 701 and the fourth electromagnetic reversing valve 702 are powered, the pressure oil in the main cylinder 401 is rapidly unloaded to the oil tank 5 through the fourth electromagnetic reversing valve 702, and the pressure oil in the rodless cavity 4021 of the auxiliary cylinder 402 is also rapidly unloaded through the third electromagnetic reversing valve 701, and the pressure oil is unloaded through the rapid pressure relief module 7, so as to prepare for the rapid drop of the driving cylinder system 4.

[0073] In the rapid drop stage: the first overflow module 201, the b end of the first electromagnetic reversing valve 202, the fifth electromagnetic reversing valve 703, the third electromagnetic reversing valve 701, the fourth electromagnetic reversing valve 702 and the first motor 901 are powered, low-pressure oil passes through the fifth electromagnetic reversing valve 703 to open the liquid filling valve 704, so that the main cylinder 401 can be freely floated up and down; on the other hand, the pressure oil enters the rod cavity 4022 of the auxiliary cylinder 402 through the A port of the first reversing valve 202, the pressure oil in the rodless cavity 4021 of the auxiliary cylinder 402 passes through the one-way throttle valve 204 to adjust the speed of the driving cylinder system, and synchronously, the pressure oil enters the T port of the first electromagnetic reversing valve 202 through the opened hydraulic control one-way valve 203 and is returned to the oil tank 5.

[0074] Obviously, the above embodiments of the present application are merely exemplary and are not intended to limit the embodiments of the present application. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments are not required to be exhausted. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A hydraulic control system for circuit board manufacturing equipment, characterized in that, The hydraulic system comprises a driving hydraulic pump system (1), a motor system (9), and an oil tank (5); the driving hydraulic pump system (1) is connected with the oil tank (5); the motor system (9) is connected with the driving hydraulic pump system (1); The hydraulic system further comprises a driving oil cylinder system (4); the driving oil cylinder system (4) comprises a main cylinder (401) and an auxiliary cylinder (402); The hydraulic system further comprises a fast-forward oil path (2) and a proportional pressure boosting oil path (3); the fast-forward oil path (2) is used to be connected with the auxiliary cylinder (402); the proportional pressure boosting oil path (3) is used to be connected with the main cylinder (401); The driving hydraulic pump system (1) comprises a first hydraulic pump (101) and a second hydraulic pump (102); the motor system (9) comprises a first motor (901) and a second motor (902); the first motor (901) is connected with the first hydraulic pump (101); the second motor (902) is connected with the second hydraulic pump (102); The first hydraulic pump (101) is connected with the fast-forward oil path (2); the second hydraulic pump (102) is connected with the proportional pressure boosting oil path (3); the fast-forward oil path (2) and the proportional pressure boosting oil path (3) are connected with the driving oil cylinder system (4) respectively.

2. The hydraulic control system of the circuit board manufacturing apparatus according to claim 1, wherein An output end of the first hydraulic pump (101) is provided with a first overflow module (201) for adjusting pressure of the fast-forward oil path (2) at a connecting branch of the fast-forward oil path (2); The fast-forward oil path (2) is further connected with a first electromagnetic reversing valve (202), a hydraulic control check valve (203), and a check valve (204) in sequence on a pipeline after pressure adjustment; an oil outlet of one end of the first electromagnetic reversing valve (202) is connected with the hydraulic control check valve (203) and the check valve (204) in sequence and then connected with a rodless cavity (4021) of the auxiliary cylinder (402); An oil outlet of the other end of the first electromagnetic reversing valve (202) is connected with a cylinder cavity (4022) of the auxiliary cylinder (402).

3. The hydraulic control system of the circuit board manufacturing apparatus according to claim 2, wherein The first overflow module (201) is an electromagnetic overflow valve for adjusting oil pressure output from the first hydraulic pump (101) to the fast-forward oil path (2).

4. The hydraulic control system of the circuit board manufacturing apparatus according to claim 1, wherein An output end of the second hydraulic pump (102) is provided with a second overflow module (301) for adjusting pressure of the proportional pressure boosting oil path (3) at a connecting branch of the proportional pressure boosting oil path (3); Pressure oil of the proportional pressure boosting oil path (3) is connected with the main cylinder (401) through a check valve (302) after pressure adjustment by the second overflow module (301).

5. The hydraulic control system of the circuit board manufacturing apparatus according to claim 4, wherein The second overflow module (301) is a proportional electromagnetic overflow valve for controlling oil pressure output from the second hydraulic pump (102) to the proportional pressure boosting oil path (3) and for controlling oil pressure of the proportional pressure boosting oil path (3) to be linearly proportional in a pressure boosting process.

6. The hydraulic control system of the circuit board manufacturing apparatus according to claim 2, wherein Also included is a slow pressure relief oil path (6) connected to the branch of the proportional pressure boosting oil path (3) and the inlet oil connection section of the master cylinder (401), the slow pressure relief oil path (6) including a second electromagnetic switching valve (601) for unloading hydraulic oil from the master cylinder.

7. The hydraulic control system of the circuit board manufacturing apparatus according to claim 6, wherein The second electromagnetic switching valve (601) is further connected to a throttle valve (602) and the master cylinder (401) in sequence; the throttle valve is used to reduce the pressure and flow of pressure oil when it is relieved from the master cylinder (401) and returned to the oil tank.

8. The hydraulic control system of the circuit board manufacturing apparatus according to claim 7, wherein Also included is a fast pressure relief module (7) including a third electromagnetic switching valve (701) and a fourth electromagnetic switching valve (702); The third electromagnetic switching valve (701) communicates with the auxiliary cylinder (402) of the fast advance oil path (2) for fast unloading of the rodless cavity (4021) of the auxiliary cylinder (402); The fourth electromagnetic switching valve (702) communicates with the master cylinder (401) of the proportional pressure boosting oil path (3) for fast unloading of pressure oil in the master cylinder (401).

9. The hydraulic control system of the circuit board manufacturing apparatus according to claim 8, wherein Also included are a pressure gauge (801) for detecting pipeline pressure, a first pressure sensor (802) provided on the fast advance oil path (2) to detect pressure, and a second pressure sensor (803) provided on the proportional pressure boosting oil path (3) to detect pressure.

10. The hydraulic control system of the circuit board manufacturing apparatus according to Claim 1, wherein The oil tank (5) is also provided with an air filter (501) for filtering impurities in the pressure oil; one side is also provided with a liquid level and temperature gauge (502) for visually observing the liquid level and temperature of the oil tank.

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