A new frame hydraulic press

Abstract

The present application relates to the technical field of forming machine tool, and more particularly to a new type of frame hydraulic machine, which comprises a first threaded rod, a first threaded rod is rotatably connected in a track, a connecting block is threadedly connected on the first threaded rod, an adsorbing cotton block is slidably connected in the track, a threaded sleeve rod is threadedly connected on a connecting seat, a connecting ring is rotatably connected on the top of the threaded sleeve rod, a connecting ring is fixedly connected on the connecting seat, and a first return spring is fixedly connected between the connecting ring on the connecting seat and the connecting ring on the threaded sleeve rod. The present application pre-stores appropriate lubricating oil in the adsorbing cotton block, so that the adsorbing cotton block is synchronously displaced with the operation of the present application during the stamping process, thereby uniformly coating the lubricating oil in the track, which can not only ensure the lubricating effect and realize self-adaptation of the stamping frequency of the present application, but also avoid frequent manual addition operation.

Description

Technical Field

[0001] This invention relates to the field of forming machine tool technology, and in particular to a novel frame hydraulic press. Background Technology

[0002] A hydraulic press is a mechanical device that uses the static pressure of a liquid for processing, and is widely used in metal forming, plastic pressing, and powder metallurgy. Hydraulic presses are mainly divided into four-column hydraulic presses and frame hydraulic presses based on their structural form. Among them, frame hydraulic presses occupy an important position in high-precision processing scenarios due to their advantages of high overall rigidity, high precision, and good stability. The frame structure of a frame hydraulic press is made of integral casting or welded steel plates, which can effectively resist eccentric loads and ensure the parallelism of the hydraulic plates, thereby improving processing quality.

[0003] During the operation of a frame hydraulic press, key moving components such as guide rails rely on continuous lubrication to reduce frictional resistance and ensure smooth hydraulic operation. However, due to the dense processing cycle, the consumption rate of lubricating medium in moving components increases significantly, forcing the equipment to frequently interrupt operation for lubrication replenishment. Currently, there are two main lubrication solutions: the first is manual intermittent lubrication, which requires repeated machine stops, obviously leading to increased maintenance intensity and reduced production efficiency; the second is an automatic lubrication device with timed control, which reduces manual intervention, but its inherent working mode has a double drawback—it requires the operator to readjust the lubrication parameters every time the working conditions change, and the fixed lubrication cycle objectively restricts the operating frequency of the hydraulic press. In other words, the existing lubrication methods are obviously complicated to operate, inefficient, and highly restrictive, making it difficult to meet the demand for efficient lubrication replenishment in actual production. Summary of the Invention

[0004] This invention addresses the shortcomings of existing technologies by providing a novel frame hydraulic press that can fully utilize lubricating oil and ensure effective lubrication of the machine body.

[0005] The technical implementation scheme of the present invention is as follows: a novel frame hydraulic press, comprising: a main frame, a hydraulic plate, a hydraulic unit, a connecting seat fixed to the hydraulic plate, and a track disposed on the main frame; further comprising: a first threaded rod, rotatably connected to the track; a connecting block, threadedly connected to the first threaded rod; an absorbent cotton block, slidably connected to the track, and fixedly connected to the connecting block; a threaded sleeve rod, threadedly connected to the connecting seat, the threaded sleeve rod splinedly engaging with the first threaded rod; a connecting ring, rotatably connected to the top of the threaded sleeve rod, and fixedly connected to the connecting seat, the threaded sleeve rod passing through the connecting ring on the connecting seat; a first return spring, fixedly connected between the connecting ring on the connecting seat and the connecting ring on the threaded sleeve rod, the first return spring being sleeved on the threaded sleeve rod; and a pad block, rotatably connected to the main frame.

[0006] More preferably, the lead value of the threaded sleeve is 1 / n of the lead value of the first threaded rod, and when the hydraulic plate is in a non-working state, the compression of the first return spring is 1 / n of the distance from the adsorbed cotton block to the bottom of the track.

[0007] More preferably, it also includes: mounting holes provided on the inner sidewall of the track, the mounting holes being distributed in an array; a pressing head, with a pressing head slidably connected in each mounting hole; and a second return spring, with a second return spring fixedly connected between the pressing head and the mounting hole.

[0008] More preferably, the elastic force of the second return spring is greater than the force required to deform the cotton block under no-load conditions, but less than the force required to deform the cotton block under full-load conditions.

[0009] More preferably, the hydraulic plate has an installation slot, through which the mold is mounted; it also includes: a second threaded rod, rotatably connected to the hydraulic plate, the two ends of the second threaded rod having threads with opposite directions, two second threaded rods forming a group, each installation slot corresponding to a group of second threaded rods, the two second threaded rods in the same group being respectively set on both sides of the same installation slot; an installation shaft, slidably connected to the hydraulic plate, the installation shaft being threadedly connected to the second threaded rod, each of the two ends of the second threaded rod having a corresponding installation shaft; a push block, each installation shaft having a push block; a servo motor, fixedly connected to the hydraulic plate; and a synchronous belt group, a synchronous belt group connecting two adjacent second threaded rods, the output ends of the two servo motors being connected to one of the second threaded rods on each side of the hydraulic plate.

[0010] More preferably, the push block is rotatably connected to the mounting shaft and further includes: a reset torsion spring, a reset torsion spring fixedly connected between the push block and the mounting shaft; and a closing block, a closing block fixedly connected to the mounting groove, the closing block having an arc-shaped contact surface.

[0011] More preferably, it also includes: a hydraulic cylinder, which is fixedly connected inside the hydraulic plate; a mounting box, which is fixedly connected inside the hydraulic plate and communicates with the hydraulic cylinder; and a pressing rod, which is slidably connected to the mounting box and is slidably connected to the hydraulic plate.

[0012] More preferably, it also includes: a friction texture, with a friction texture provided on the bottom of the pressing rod.

[0013] Compared with existing technologies, the present invention has the following advantages: The present invention pre-stores an appropriate amount of lubricating oil in the absorbent cotton block, so that during the stamping process, the absorbent cotton block will move synchronously with the operation of the present invention, thereby uniformly coating the lubricating oil within the track. This ensures lubrication. By adding lubricating oil in each processing step, the present invention achieves self-adaptation with the stamping frequency of the present invention, avoiding frequent manual additions. Compared with traditional technologies, the present invention improves ease of use. The present invention uses an extrusion head to compress the absorbent cotton block, combined with a second return spring, to achieve a gradual release of lubricating oil, thereby ensuring effective control of the lubricating oil quantity and efficiency. The present invention uses a push block that moves synchronously towards the center to adjust the position of the mold, ensuring precise alignment of the mold on the upper and lower hydraulic plates, thereby ensuring stamping quality. A retractable block is also included to allow the push block to quickly switch working states, ensuring smooth and convenient mold loading and unloading. The present invention uses a pressing rod that can apply pressure evenly through hydraulic pressure, combined with an automatic centering function, to achieve rapid clamping and precise positioning of the mold. Compared with traditional technologies, the present invention improves clamping efficiency and ease of use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 This is a partial structural cross-sectional view of the present invention.

[0016] Figure 3 This is a cross-sectional view of the connection structure of the lubrication component within the track in this invention.

[0017] Figure 4 This is a partial diagram of the connection structure of the lubrication component in this invention.

[0018] Figure 5 This is a schematic diagram of the connection structure of the extrusion assembly in this invention.

[0019] Figure 6 This is a cross-sectional view showing the position and structure of the centering component within the hydraulic plate in this invention.

[0020] Figure 7 This is a structural separation diagram of the centering component in this invention when adjusting the mold position.

[0021] Figure 8 This is a cross-sectional view showing the position and structure of the fastening component within the hydraulic plate in this invention.

[0022] The above-mentioned figures include the following reference numerals: 1. Hydraulic press body; 101. Main frame; 102. Hydraulic plate; 1021-Upper hydraulic plate; 1022-Lower hydraulic plate; 103. Hydraulic unit; 104. Track; 105. Connecting seat; 106. Mounting groove; 2. Lubrication assembly; 201. First threaded rod; 202. Connecting block; 203. Absorbent cotton block; 204. Threaded sleeve rod; 205. Connecting ring; 206. First compound... Position spring, 207, pad block, 3, extrusion assembly, 301, mounting hole, 302, extrusion head, 303, second return spring, 4, centering assembly, 401, second threaded rod, 402, mounting shaft, 403, push block, 404, servo motor, 405, synchronous belt assembly, 406, return torsion spring, 407, closing block, 5, fastening assembly, 501, hydraulic cylinder, 502, mounting box, 503, pressing rod, 504, friction texture. Detailed Implementation

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Example: A novel frame hydraulic press, see reference. Figure 1 and Figure 2The system includes: a hydraulic press body 1, which performs stamping processing on the workpiece. The hydraulic press body 1 includes: a main frame 101; a hydraulic plate 102, which is provided on the main frame 101 and consists of an upper hydraulic plate 1021 and a lower hydraulic plate 1022, wherein the upper hydraulic plate 1021 can be vertically displaced and the lower hydraulic plate 1022 is fixed in position; and a hydraulic actuator 103, which is fixedly installed on the upper part of the main frame 101 and is fixed to the upper hydraulic plate 1021 to control the upper hydraulic plate 1021 to move and press against the lower hydraulic plate 1022, thereby realizing the stamping of the workpiece. Press processing; Tracks 104 are fixedly installed at the four corners of the main frame 101; Connecting seats 105 are fixedly installed on the left and right sides of the hydraulic upper plate 1021. The connecting seats 105 slide with the tracks 104 to stably realize the vertical displacement of the hydraulic upper plate 1021. The connecting seats 105 on the left side slide with the two tracks 104 on the left side, and the connecting seats 105 on the right side slide with the two tracks 104 on the right side; The hydraulic plate 102 is provided with a mounting groove 106. The mold is installed on the hydraulic plate 102 through the mounting groove 106. By changing different molds, various stamping processing functions can be realized.

[0025] See Figures 1-4The system includes: a lubrication assembly 2, which is installed on the hydraulic press body 1. The lubrication assembly 2 is used to replenish lubricating oil into the track 104 to ensure smooth sliding contact between the track 104 and the connecting seat 105. Each of the four tracks 104 is provided with a set of lubrication assemblies 2. Each set of lubrication assemblies 2 includes: a first threaded rod 201, which is rotatably installed in the track 104; a connecting block 202, which is threaded onto the first threaded rod 201; an absorbent cotton block 203, which is slidably installed in the track 104 and fixedly installed on the connecting block 202. The absorbent cotton block 203 can absorb and store lubricating oil; and a threaded sleeve 204, which is threaded onto the connecting seat 105. The threaded sleeve 204 is splined with the first threaded rod 201 so that they can rotate synchronously and have axial relative displacement. The lead value of the threaded sleeve 204 is 1 / n of the lead value of the first threaded rod 201. In this example, n is 4; a connecting ring 205 is rotatably mounted on the top of the threaded sleeve 204, and a connecting ring 205 is fixedly mounted on the connecting seat 105. The threaded sleeve 204 passes through the connecting ring 205 on the connecting seat 105 and moves and rotates relative to it; a first return spring 206 is fixedly mounted between the connecting ring 205 on the connecting seat 105 and the connecting ring 205 on the threaded sleeve 204. 06 is fitted onto the threaded sleeve 204. When the hydraulic upper plate 1021 is not in operation, the first return spring 206 will be compressed, and the compression amount of the first return spring 206 is 1 / n of the distance from the absorbent cotton block 203 to the bottom of the track 104; pad 207 is rotatably mounted on the main frame 101. The connecting ring 205 on the threaded sleeve 204 will contact the pad 207. Through the transition of the pad 207, the movement of the threaded sleeve 204 is smoother.

[0026] When the equipment is not in operation, the hydraulic upper plate 1021 is stopped at its extreme position. At this time, the first return spring 206 is compressed. If we assume that the compression amount of the first return spring 206 is 'a', then the distance between the absorbent cotton block 203 and the bottom of the track 104 should be 4a. When the hydraulic actuator 103 moves the hydraulic upper plate 1021 for stamping, the hydraulic upper plate 1021 moves downward, allowing the first return spring 206 to recover its deformation. During the recovery process, the first return spring 206 will push the threaded sleeve 204 relative to the connecting seat 105 to generate... The displacement is 'a'. Simultaneously, the threaded sleeve 204 is rotated by the connecting seat 105, and the first threaded rod 201 rotates synchronously through spline transmission. Since there is a lead ratio of 4 between the threaded sleeve 204 and the first threaded rod 201, the absorbent cotton block 203 will move downwards with a displacement of 4a after the same number of rotations. That is, when the first return spring 206 is fully restored, the absorbent cotton block 203 will reach the bottom of the track 104. At this time, the upper hydraulic plate 1021 has not yet moved its upper mold to contact the mold on the lower hydraulic plate 1022. As the upper hydraulic plate 1021 continues to move downwards, the threaded sleeve 204 and the first threaded rod 201 no longer rotate, but the threaded sleeve 204 moves downwards relative to the first threaded rod 201. At this time, the absorbent cotton block 203 remains stationary. Therefore, by pre-storing an appropriate amount of lubricating oil in the absorbent cotton block 203, the absorbent cotton block 203 will synchronously shift and pre-coat the track 104 with lubricating oil each time the equipment performs a stamping process. This ensures lubrication and achieves self-adaptation with the stamping frequency of the present invention by adding lubricating oil in each processing process. It also avoids frequent manual addition operations. Compared with traditional technology, this equipment will improve the ease of use.

[0027] Conversely, after the stamping process is completed, the hydraulic unit 103 controls the hydraulic plate 102 to reset. During the process, the threaded sleeve 204 and the first threaded rod 201 do not rotate initially. The threaded sleeve 204 moves upward relative to the first threaded rod 201 until the upper hydraulic plate 1021 moves upward to the position where the connecting ring 205 on the threaded sleeve 204 contacts the pad 207. The upper hydraulic plate 1021 continues to move, which will transmit the control of the threaded sleeve 204 to move relative to the connecting seat 105, so that the first reset spring 206 is recompressed by the amount 'a'. At the same time, the threaded sleeve 204 and the first threaded rod 201 rotate in opposite directions, driving the absorbent cotton block 203 back to the initial position, preparing for the next processing.

[0028] See Figure 2 and Figure 5The system includes: a squeezing assembly 3, which is installed on the hydraulic press body 1. The squeezing assembly 3 is used to squeeze the absorbent cotton block 203 and assist the absorbent cotton block 203 in coating the track 104 with lubricating oil. The squeezing assembly 3 includes: mounting holes 301 on the inner side wall of the track 104, and six mounting holes 301 arranged in an array on each of the three inner sides of each track 104; a squeezing head 302, which is slidably installed in each mounting hole 301; and a second return spring 303, which is fixedly installed between the squeezing head 302 and the mounting hole 301. The elastic force of the second return spring 303 is greater than the force required for the absorbent cotton block 203 to deform under no-load conditions and less than the force required for the absorbent cotton block 203 to deform under full-load conditions.

[0029] Each time the absorbent cotton block 203 moves downward, it will come into contact with the extrusion head 302. Therefore, after adding an appropriate amount of lubricating oil to the absorbent cotton block 203, when the fully loaded absorbent cotton block 203 comes into contact with the extrusion head 302, the extrusion head 302 will be squeezed into the mounting hole 301, and the second return spring 303 will be compressed, so that the absorbent cotton block 203 can pass smoothly through the position of the extrusion head 302. As the lubricating oil is continuously coated and consumed, the amount of lubricating oil in the absorbent cotton block 203 decreases. At this time, the extrusion head 302 will turn to squeeze the absorbent cotton block 203, thereby squeezing out the lubricating oil deep inside, thus ensuring effective control of the amount of lubricating oil and the efficiency of its use.

[0030] See Figure 2 , Figure 6 and Figure 7The system includes: a centering component 4, which is installed on the hydraulic press body 1. The centering component 4 is used to easily adjust the position of the mold, so that the mold is centered and the mold on the hydraulic plate 102 can be accurately matched. The centering component 4 includes: a second threaded rod 401, which is rotatably installed on the hydraulic plate 102. The two ends of the second threaded rod 401 are provided with threads of opposite directions. Two second threaded rods 401 are set as a group, and each mounting slot 106 is provided with a corresponding group of second threaded rods 401. Two second threaded rods 401 are respectively disposed on the left and right sides of the same mounting groove 106; mounting shafts 402 are slidably mounted on the hydraulic plate 102, and the mounting shafts 402 are threadedly mounted to the second threaded rods 401. Each second threaded rod 401 has a mounting shaft 402 mating on different threads at both ends. Rotation of the second threaded rod 401 controls the two mounting shafts 402 to move synchronously and in opposite directions; push blocks 403 are rotatably mounted on each mounting shaft 402; servo motors 404 and hydraulic plate 102 are also present. A servo motor 404 is fixedly mounted on the 02; a synchronous belt group 405 is installed between two adjacent second threaded rods 401, and a synchronous belt group 405 is installed between the output end of the servo motor 404 and one of the second threaded rods 401 on the hydraulic plate 102. The servo motor 404 will synchronously provide a stable rotational driving force to all the second threaded rods 401; a reset torsion spring 406 is fixedly mounted between the push block 403 and the mounting shaft 402, and the reset torsion spring 406 makes the push block 403... The position of the push block 403 is perpendicular to the mounting groove 106. When the push block 403 moves, it will push the mold to move along the mounting groove 106. When the push block 403 pushes the mold to move, the mold cannot make the push block 403 rotate and disengage from the push block 403. The retracting block 407 is fixedly installed at both ends of the mounting groove 106. The retracting block 407 is provided with an arc-shaped contact surface. When the push block 403 moves to contact the retracting block 407, the retracting block 407 will guide the push block 403 to retract into the mounting groove 106.

[0031] After the mold is inserted into the mounting slot 106, the servo motor 404 is started, controlling the second threaded rod 401 to rotate and drive the push block 403 to move towards the center. The push block 403 first disengages from the retracting block 407, and under the action of the return torsion spring 406, the push block 403 unfolds to a working state perpendicular to the mounting slot 106. Subsequently, as the push block 403 moves towards the center, it contacts the mold and applies a pushing force to it, ensuring that the mold is accurately aligned and positioned. After completion, the servo motor 404 is turned off. This ensures the precise alignment of the mold on the hydraulic plate 102, thereby ensuring the stamping quality of this equipment. Conversely, when it is necessary to disassemble the mold, the servo motor 404 is operated to rotate the second threaded rod 401 in the opposite direction, controlling the push block 403 to move to both sides. When the push block 403 contacts the closing block 407, the arc-shaped contact surface on the closing block 407 will guide the push block 403 to rotate smoothly and close into the mounting groove 106. After completion, the servo motor 404 is turned off, and the mold can be freely removed from the hydraulic plate 102.

[0032] See Figure 2 and Figure 8 The system includes: a fastening assembly 5, which is installed on the hydraulic press body 1. The fastening assembly 5 is used to install the mold on the hydraulic plate 102 to achieve stable fixation of the mold. The fastening assembly 5 includes: a hydraulic cylinder 501, which is fixedly installed inside the hydraulic plate 102; a mounting box 502, which is fixedly installed inside the hydraulic plate 102 and communicates with the hydraulic cylinder 501; and a pressing rod 503, which is slidably installed on the mounting box 502 and slidably installed with the hydraulic plate 102. When the hydraulic cylinder 501... Upon startup, the press rod 503 is controlled to extend and retract by controlling the flow of hydraulic oil within it and within the mounting box 502. When the mold is mounted on the hydraulic plate 102, the extended press rod 503 will contact the mold. Friction grooves 504 are provided on the side of the press rod 503 that contacts the mold to increase the coefficient of friction. By increasing the friction between the press rod 503 and the mold, the stability of the press rod 503's action on the mold is improved, effectively suppressing loosening caused by vibration and ensuring long-term stability during continuous operation.

[0033] After the mold is mounted on the hydraulic plate 102 and precisely positioned by the centering component 4, the hydraulic cylinder 501 is activated. The cylinder 501 presses hydraulic oil into the inner cavity of the mounting box 502, using hydrostatic pressure to push the mounting box 502 outwards, thus subjecting the mold to uniform clamping force and improving installation stability. Conversely, controlling the cylinder 501 to withdraw the hydraulic oil causes the pressing rod 503 to retract into the mounting box 502, releasing the mold from its fixation. Therefore, by using the fastening component 5 in conjunction with the centering component 4, rapid and precise mold installation and removal can be achieved. Compared to the traditional bolt-based fixing method, this equipment offers a more convenient and efficient mold installation.

[0034] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A novel frame hydraulic press, characterized in that it comprises: The system comprises a main frame (101), a hydraulic plate (102), a hydraulic actuator (103) for controlling the displacement of the hydraulic plate (102), a connecting seat (105) fixed to the hydraulic plate (102), and a track (104) on the main frame (101) that slides with the connecting seat (105); it also includes: a first threaded rod (201), which is rotatably connected to the track (104); a connecting block (202), which is threaded onto the first threaded rod (201); an absorbent cotton block (203), which is slidably connected to the track (104) and fixedly connected to the connecting block (202), and which can absorb and store lubricating oil; and a threaded sleeve rod (204), which is threaded onto the connecting seat (105), and which splines with the first threaded rod (201) so that the two can work together. The device is rotatable and capable of axial relative displacement; a connecting ring (205) is rotatably connected to the top of the threaded sleeve (204), and a connecting ring (205) is fixedly connected to the connecting seat (105). The threaded sleeve (204) passes through the connecting ring (205) on the connecting seat (105) and moves and rotates relative to it; a first return spring (206) is fixedly connected between the connecting ring (205) on the connecting seat (105) and the connecting ring (205) on the threaded sleeve (204). The first return spring (206) is sleeved on the threaded sleeve (204). When the hydraulic plate (102) is in a non-working state, the first return spring (206) will be compressed; a pad (207) is rotatably connected to the main frame (101). The connecting ring (205) on the threaded sleeve (204) will move to contact the pad (207); The lead value of the threaded sleeve (204) is 1 / n of the lead value of the first threaded rod (201). When the hydraulic plate (102) is in a non-working state, the compression of the first return spring (206) is 1 / n of the distance from the adsorbent cotton block (203) to the bottom of the track (104). It also includes: mounting holes (301) are provided on the inner sidewall of the track (104), and the mounting holes (301) are distributed in an array; extrusion heads (302), and each mounting hole (301) is slidably connected to an extrusion head (302); and a second return spring (303), which is fixedly connected between the extrusion head (302) and the mounting hole (301). The elastic force of the second return spring (303) is greater than the force required for the adsorbed cotton block (203) to deform under no-load conditions, but less than the force required for the adsorbed cotton block (203) to deform under full-load conditions.

2. A novel frame hydraulic press according to claim 1, characterized in that, The hydraulic plate (102) is provided with an installation groove (106), and the mold is installed on the hydraulic plate (102) through the installation groove (106); it also includes: a second threaded rod (401), which is rotatably connected to the hydraulic plate (102). The two ends of the second threaded rod (401) are provided with threads of opposite directions. Two second threaded rods (401) are set as a group. Each installation groove (106) is provided with a corresponding group of second threaded rods (401). The two second threaded rods (401) in the same group are respectively set on both sides of the same installation groove (106); and an installation shaft (402), which is slidably connected to the hydraulic plate (102). (402) is threadedly connected to the second threaded rod (401), and each second threaded rod (401) has a mounting shaft (402) fitted on different threads at both ends; push block (403), and each mounting shaft (402) is provided with a push block (403); servo motor (404), and servo motor (404) is fixedly connected to the hydraulic plate (102); synchronous belt group (405), and a synchronous belt group (405) is connected between two adjacent second threaded rods (401), and the output ends of the two servo motors (404) are respectively connected to one of the second threaded rods (401) on the two hydraulic plates (102) with a synchronous belt group (405).

3. A novel frame hydraulic press according to claim 2, characterized in that, The push block (403) is rotatably connected to the mounting shaft (402) and also includes: a reset torsion spring (406), a reset torsion spring (406) is fixedly connected between the push block (403) and the mounting shaft (402), the reset torsion spring (406) causes the push block (403) to move and push the mold to move along the mounting groove (106); and a retracting block (407), a retracting block (407) is fixedly connected to the mounting groove (106), the retracting block (407) is provided with an arc-shaped contact surface, when the push block (403) moves to contact the retracting block (407), the retracting block (407) will guide the push block (403) to retract into the mounting groove (106).

4. A novel frame hydraulic press according to claim 3, characterized in that, it further... include: The cylinder (501) is fixedly connected inside the hydraulic plate (102); the mounting box (502) is fixedly connected inside the hydraulic plate (102), and the mounting box (502) is correspondingly connected to the cylinder (501); the pressing rod (503) is slidably connected to the mounting box (502), and the pressing rod (503) is slidably connected to the hydraulic plate (102). The cylinder (501) starts to control the extension and retraction of the pressing rod (503). When the mold is installed on the hydraulic plate (102), the pressing rod (503) will extend and contact the mold.

5. A novel frame hydraulic press according to claim 4, characterized in that, it further... include: Friction texture (504): The bottom of the pressing rod (503) is provided with friction texture (504) to increase the coefficient of friction.

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