Novel frame hydraulic machine

Abstract

The invention relates to the technical field of forming machine tools, in particular to a novel frame hydraulic machine which comprises a first threaded rod and a second threaded rod. The first threaded rod is in threaded connection with the connecting block; the adsorption cotton block is connected into the track in a sliding manner; the threaded sleeve rod is in threaded connection with the connecting seat; the top of the threaded sleeve rod is rotationally connected with one connecting ring, and the connecting seat is fixedly connected with one connecting ring; and the first reset spring is fixedly connected between the connecting ring on the connecting seat and the connecting ring on the threaded sleeve rod. A proper amount of lubricating oil is pre-stored in the adsorption cotton block, so that the adsorption cotton block synchronously displaces along with the operation of the device in the stamping process, the lubricating oil is uniformly coated in the track, the lubricating effect can be ensured, self-adaption to the stamping frequency of stamping of the device is realized, and frequent manual adding operation is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of forming machine tools, in particular to a novel frame hydraulic press. Background Art

[0002] A hydraulic press is a mechanical device that utilizes the static pressure of liquids for processing. It is widely used in fields such as metal forming, plastic pressing, and powder metallurgy. Hydraulic presses are primarily categorized into four-column and frame-type hydraulic presses, depending on their structural form. Frame-type hydraulic presses, with their advantages of strong overall rigidity, high precision, and excellent stability, play a key role in high-precision machining scenarios. The frame structure of a frame-type hydraulic press is constructed from integral casting or welded steel plates, effectively resisting eccentric loads and ensuring parallelism of the hydraulic plates, thereby improving machining quality.

[0003] During the operation of a frame hydraulic press, key moving parts such as the guide rails require continuous lubrication to reduce friction and ensure smooth execution of hydraulic movements. However, due to the intensive processing cycle, the consumption rate of the lubricant in the moving parts increases significantly, forcing the equipment to frequently interrupt operations for lubrication resupply. Currently, there are two main implementation methods for existing lubrication schemes: the first is manual intermittent refilling, which requires repeated shutdown operations. Obviously, this not only increases maintenance intensity but also reduces production efficiency. The second is the use of a timed automatic oiling device. Although it can reduce manual intervention, its inherent working mode has two drawbacks: it requires the operator to readjust the oiling parameters every time the working conditions change, and the limitation of the fixed oiling cycle objectively restricts the operating frequency of the hydraulic press processing. In other words, the existing lubrication methods obviously have problems such as complicated operation, low efficiency and high restrictions, which make it difficult to meet the demand for efficient lubricant replenishment in actual production. Summary of the Invention

[0004] The present invention aims to solve the defects of the prior art and provides a novel frame hydraulic press which can fully utilize lubricating oil and ensure lubrication effect on the machine body.

[0005] The technical implementation plan of the present invention is: a new type of frame hydraulic press, including: a main frame, a hydraulic plate, a hydraulic device, a connecting seat fixed to the hydraulic plate, and a track provided on the main frame; also including: a first threaded rod, a first threaded rod is rotatably connected in the track; a connecting block, a connecting block is threadedly connected on the first threaded rod; an adsorption cotton block is slidably connected in the track, and the adsorption cotton block is fixedly connected to the connecting block; a threaded sleeve, a threaded sleeve is threadedly connected on the connecting seat, and the threaded sleeve is splined with the first threaded rod; a connecting ring, a connecting ring is rotatably connected to the top of the threaded sleeve, a connecting ring is fixedly connected to the connecting seat, and the threaded sleeve passes through the connecting ring on the connecting seat; a first return spring, a first return spring is fixedly connected between the connecting ring on the connecting seat and the connecting ring on the threaded sleeve, and the first return spring is sleeved on the threaded sleeve and retracted; a pad, a pad is 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 amount of the first return spring is 1 / n of the distance from the adsorption cotton block to the bottom of the track.

[0007] More preferably, it also includes: mounting holes are opened on the inner wall of the track, and the mounting holes are distributed in an array; an extrusion head is slidably connected to each mounting hole; and a second return spring is fixedly connected between the extrusion head and the mounting hole.

[0008] More preferably, the elastic force of the second return spring is greater than the force required for deformation of the adsorption cotton block in an unloaded state, and is less than the force required for deformation of the adsorption cotton block in a fully loaded state.

[0009] More preferably, a mounting groove is provided on the hydraulic plate, and the mold is mounted on the hydraulic plate through the mounting groove; it also includes: a second threaded rod, a second threaded rod is rotatably connected to the hydraulic plate, and both ends of the second threaded rod are provided with threads with opposite rotation directions, and the two second threaded rods are set as a group, each mounting slot is corresponding to a group of second threaded rods, and the two second threaded rods in the same group are respectively arranged on both sides of the same mounting slot; a mounting shaft, a mounting shaft is slidably connected to the hydraulic plate, the mounting shaft is threadedly connected to the second threaded rod, and a mounting shaft is matched with different threads at both ends of each second threaded rod; a push block, a push block is provided on each mounting shaft; a servo motor, a servo motor is fixedly connected to the hydraulic plate; a synchronous belt group, a group of synchronous belt groups is connected between the two adjacent second threaded rods, and a group of synchronous belt groups is connected between the output ends of the two servo motors and one of the second threaded rods on the hydraulic plates on both sides.

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

[0011] More preferably, it also includes: an oil cylinder, which is fixedly connected to the hydraulic plate; an installation box, which is fixedly connected to the hydraulic plate, and the installation box is correspondingly communicated with the oil cylinder; a pressing rod, which is slidably connected to the installation box, and the pressing rod is slidably connected to the hydraulic plate.

[0012] More preferably, it further comprises: friction lines, and the bottom of the pressing rod is provided with friction lines.

[0013] Compared with the prior art, the present invention has the following advantages: the present invention pre-stores an appropriate amount of lubricating oil in the adsorption cotton block, so that during the stamping process, the adsorption cotton block will be displaced synchronously with the operation of the present invention, thereby evenly coating the lubricating oil on the track, which can not only ensure the lubrication effect, but also achieve self-adaptation with the stamping frequency of the stamping process of the present invention by adding lubricating oil during each processing process, and avoid frequent manual addition operations. Compared with traditional technology, the present invention will improve the convenience of use; the present invention uses an extrusion head to extrude the adsorption cotton block, and cooperates with a second return spring to achieve progressive release of lubricating oil, thereby ensuring effective control of the amount of lubricating oil and efficient use; the present invention uses a push block that displaces synchronously toward the center to adjust the position of the mold, ensuring accurate alignment of the mold on the upper and lower hydraulic plates, thereby ensuring the quality of the stamping process, and provides a retracting block so that the push block can quickly switch working states, ensuring smooth and convenient loading and unloading of the mold; the present invention uses a pressing rod that can evenly apply pressure through hydraulic pressure, combined with an automatic centering function, to achieve rapid clamping and precise positioning of the mold. Compared with traditional technology, the present invention will improve clamping efficiency and convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2 It 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 in the track of the present invention.

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

[0018] Figure 5 Schematic diagram of the connection structure of the extrusion assembly in the present invention.

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

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

[0021] Figure 8 This is a cross-sectional view of the position structure of the fastening assembly in the hydraulic plate of the present invention.

[0022] The above drawings include the following reference numerals: 1. Hydraulic press body, 101. Main frame, 102. Hydraulic plate, 1021. Hydraulic upper plate, 1022. Hydraulic lower plate, 103. Hydraulic press, 104. Track, 105. Connecting seat, 106. Mounting slot, 2. Lubrication assembly, 201. First threaded rod, 202. Connecting block, 203. Adsorption cotton block, 204. Threaded sleeve, 205. Connecting ring, 206. First complex Position spring, 207, pad, 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, retraction block, 5, fastening assembly, 501, cylinder, 502, mounting box, 503, pressing rod, 504, friction pattern. DETAILED DESCRIPTION

[0023] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example: A new type of frame hydraulic press, see Figure 1 and Figure 2, including: a hydraulic press body 1, the hydraulic press body 1 performs stamping on the workpiece, the hydraulic press body 1 includes: a main frame 101; a hydraulic plate 102, the main frame 101 is provided with a hydraulic plate 102, the hydraulic plate 102 is composed of a hydraulic upper plate 1021 and a hydraulic lower plate 1022, wherein the hydraulic upper plate 1021 can be vertically displaced, and the hydraulic lower plate 1022 is fixed in position; a hydraulic press 103, a hydraulic press 103 is fixedly installed on the upper part of the main frame 101, the hydraulic press 103 is fixed to the hydraulic upper plate 1021, to control the hydraulic upper plate 1021 to move to press with the hydraulic lower plate 1022, thereby realizing the stamping of the workpiece Stamping; Track 104, the four corners of the main frame 101 are fixedly installed with tracks 104; Connecting seat 105, the left and right sides of the hydraulic upper plate 1021 are fixedly installed with connecting seats 105, the connecting seat 105 and the track 104 slide together to stably realize the vertical displacement of the hydraulic upper plate 1021, wherein the connecting seat 105 on the left is slidably installed with the two tracks 104 on the left, and the connecting seat 105 on the right is slidably installed with the two tracks 104 on the right; The hydraulic plate 102 is provided with a mounting groove 106, and the mold is installed on the hydraulic plate 102 through the mounting groove 106. A variety of stamping processing functions can be realized by replacing different molds.

[0025] See Figure 1-Figure 4, including: a lubrication component 2, a lubrication component 2 is installed on the hydraulic press body 1, the lubrication component 2 is used to replenish lubricating oil into the track 104 to ensure smooth sliding cooperation between the track 104 and the connecting seat 105, and a group of lubrication components 2 are provided in each of the four tracks 104. Each group of lubrication components 2 includes: a first threaded rod 201, a first threaded rod 201 is rotatably installed in the track 104; a connecting block 202, a connecting block 202 is threadedly installed on the first threaded rod 201; an adsorption cotton block 203, an adsorption cotton block 203 is slidably installed in the track 104, the adsorption cotton block 203 is fixedly installed on the connecting block 202, and the adsorption cotton block 203 can absorb and store lubricating oil; a threaded sleeve rod 204, a threaded sleeve rod 204 is threaded on the connecting seat 105, and the threaded sleeve rod 204 is splined with the first threaded rod 201 so that the two can rotate synchronously and can perform axial relative displacement. The lead value of the threaded sleeve rod 204 is 1 / n of the lead value of the first threaded rod 201. In this embodiment In this embodiment, n is 4; a connecting ring 205 is rotatably mounted on the top of the threaded sleeve 204, a connecting ring 205 is fixedly mounted on the connecting seat 105, and the threaded sleeve 204 passes through the connecting ring 205 on the connecting seat 105 and moves and rotates relative thereto; 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, and the 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 sleeved on the threaded sleeve 204. When the hydraulic upper plate 1021 is in a non-working state, 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 adsorption cotton block 203 to the bottom of the track 104; the pad 207 is rotatably installed on the main frame 101, and the connecting ring 205 on the threaded sleeve 204 will contact the pad 207. Through the transition of the pad 207, the movement and docking of the threaded sleeve 204 will be smoother.

[0026] When the device is not in operation, the hydraulic upper plate 1021 is parked at the upper limit position. At this time, the first return spring 206 is compressed. If the compression amount of the first return spring 206 is assumed to be a, the distance between the adsorption cotton block 203 and the bottom of the track 104 should be 4a. When the hydraulic press 103 is controlled to move the hydraulic upper plate 1021 for stamping, the hydraulic upper plate 1021 moves downward, so that the first return spring 206 can recover its deformation. During the recovery process of the first return spring 206, the threaded sleeve 204 will be pushed relative to the connecting seat 105 to generate a positive displacement. The displacement is a. At the same time, the threaded sleeve 204 is rotated by the connecting seat 105 and controls the synchronous rotation of the first threaded rod 201 through the splined transmission. Since the threaded sleeve 204 and the first threaded rod 201 have a lead value ratio of 4, the adsorption cotton block 203 will move downward at a displacement of 4a under the same number of rotations. That is, when the first return spring 206 is fully restored, the adsorption cotton block 203 will reach the bottom of the track 104. At this time, the hydraulic upper plate 1021 has not yet moved its upper mold to contact the mold on the hydraulic lower plate 1022. As the hydraulic upper plate 1021 continues to move downward, the threaded sleeve 204 and the first threaded rod 201 stop rotating, and the threaded sleeve 204 moves downward relative to the first threaded rod 201. At this time, the adsorption cotton block 203 remains stationary. Therefore, it is only necessary to pre-store an appropriate amount of lubricating oil in the adsorption cotton block 203. Every time the device performs a stamping process, the adsorption cotton block 203 will be synchronously displaced and the lubricating oil will be pre-coated in the track 104. This can ensure the lubrication effect, and by adding lubricating oil during each processing process, it can achieve self-adaptation with the stamping frequency of the stamping process of the present invention, and avoid frequent manual addition operations. Compared with traditional technology, this device will improve the convenience of use.

[0027] On the contrary, after the stamping process is completed, the hydraulic press 103 controls the hydraulic plate 102 to reset. During the process, the threaded sleeve 204 and the first threaded rod 201 do not rotate first, and the threaded sleeve 204 moves up relative to the first threaded rod 201 until the hydraulic upper plate 1021 moves up to the position where the connecting ring 205 on the threaded sleeve 204 contacts the pad 207. The hydraulic upper plate 1021 continues to move to transmit the control threaded sleeve 204 to move relative to the connecting seat 105, so that the first reset spring 206 is re-compressed by the amount a. At the same time, the threaded sleeve 204 and the first threaded rod 201 rotate in the opposite direction, driving the adsorption cotton block 203 to return to the initial position to prepare for the next processing.

[0028] See Figure 2 and Figure 5, including: an extrusion component 3, an extrusion component 3 is installed on the hydraulic press body 1, the extrusion component 3 is used to extrude the adsorption cotton block 203, and assist the adsorption cotton block 203 to apply lubricating oil to the track 104, the extrusion component 3 includes: a mounting hole 301 is opened on the inner side wall of the track 104, and each track 104 has three inner side surfaces, and each inner side surface is provided with six mounting holes 301 arranged in an array; an extrusion head 302, an extrusion head 302 is slidably installed in each mounting hole 301; a second return spring 303, a second return spring 303 is fixedly installed between the extrusion head 302 and the mounting hole 301, and the elastic force of the second return spring 303 is greater than the force required for the deformation of the adsorption cotton block 203 in the no-load state, and is less than the force required for the deformation of the adsorption cotton block 203 in the full-load state.

[0029] Every time the adsorption 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 adsorption cotton block 203, first, when the adsorption cotton block 203 in a fully loaded state 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 adsorption cotton block 203 can smoothly pass through the position of the extrusion head 302; as the lubricating oil is continuously applied and consumed, the amount of lubricating oil in the adsorption cotton block 203 decreases. At this time, the extrusion head 302 will turn to squeeze the adsorption cotton block 203, thereby squeezing out the lubricating oil deep inside it, thereby ensuring effective control of the amount of lubricating oil and utilization efficiency.

[0030] See Figure 2 、 Figure 6 and Figure 7, including: a centering component 4, a centering component 4 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 position is centered, ensuring that the mold on the hydraulic plate 102 can accurately match, the centering component 4 includes: a second threaded rod 401, a second threaded rod 401 is rotatably installed on the hydraulic plate 102, and the two ends of the second threaded rod 401 are provided with threads with opposite rotation directions, wherein the two second threaded rods 401 are set as a group, and each mounting slot 106 is correspondingly provided with a group of second threaded rods 401, and the same group The two second threaded rods 401 are respectively arranged on the left and right sides of the same mounting groove 106; the mounting shaft 402 is slidably mounted on the hydraulic plate 102, and the mounting shaft 402 is threadedly mounted on the second threaded rod 401. Each second threaded rod 401 is matched with a mounting shaft 402 on different threads at both ends. The rotation of the second threaded rod 401 will control the two mounting shafts 402 to move synchronously and in opposite directions; a push block 403 is rotatably mounted on each mounting shaft 402; a servo motor 404 is installed on the hydraulic plate 1 02 is fixedly installed with a servo motor 404; 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 installed between the push block 403 and the mounting shaft 402, and the reset torsion spring 406 makes 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 cause the push block 403 to rotate and separates from the push block 403; the folding block 407, the front and rear ends of the mounting groove 106 are fixedly installed with the folding block 407, and the folding block 407 is provided with an arc-shaped contact surface. When the push block 403 moves to contact the folding block 407, the folding block 407 will guide the push block 403 to fold into the mounting groove 106.

[0031] After the mold is installed in the installation groove 106, the servo motor 404 is started to control the second threaded rod 401 to rotate and drive the push block 403 to move in the middle. The push block 403 is first disengaged from the retracting block 407. Under the action of the reset torsion spring 406, the push block 403 is expanded to a working state perpendicular to the installation groove 106; then, as the push block 403 moves in the middle, the push block 403 will contact the mold and apply thrust to it to ensure that the mold is accurately aligned and positioned. After completion, the servo motor 404 is turned off. In this way, It can ensure the precise alignment of the mold on the hydraulic plate 102, thereby ensuring the stamping processing quality of the equipment; conversely, when the mold needs to be removed, the servo motor 404 is controlled to rotate the second threaded rod 401 in the opposite direction to control the push block 403 to move to both sides. When the push block 403 contacts the retracting block 407, the arc-shaped contact surface on the retracting block 407 will guide the push block 403 to rotate smoothly and retract into the installation 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 , including: a fastening assembly 5, a fastening assembly 5 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 cylinder 501, a cylinder 501 is fixedly installed in the hydraulic plate 102; a mounting box 502, a mounting box 502 is fixedly installed in the hydraulic plate 102, the mounting box 502 is communicated with the cylinder 501; a pressing rod 503, a pressing rod 503 is slidably installed on the mounting box 502, the pressing rod 503 is slidably installed with the hydraulic plate 102, when the cylinder 501 When started, it will control the extension and retraction of the pressing rod 503 by controlling the flow of hydraulic oil therein and in the mounting box 502. When the mold is installed on the hydraulic plate 102, the pressing rod 503 will extend and come into contact with the mold; friction pattern 504, the side of the pressing rod 503 that contacts the mold is provided with a friction pattern 504 for increasing the friction coefficient. By increasing the friction between the pressing rod 503 and the mold, the stability of the action of the pressing rod 503 on the mold is improved, so as to effectively suppress the loosening phenomenon caused by vibration and ensure long-term stability during continuous operation.

[0033] After the mold is mounted on the hydraulic plate 102 and precisely positioned using the centering assembly 4, the oil cylinder 501 is activated. The oil cylinder 501 presses hydraulic oil into the inner cavity of the mounting box 502, using the hydrostatic pressure to push the mounting box 502 outward, causing the mold to bear a uniform pressing force, thereby improving installation stability. Conversely, the oil cylinder 501 is controlled to withdraw the hydraulic oil, controlling the pressing rod 503 to reverse its movement and retract it into the mounting box 502, thereby releasing the mold from its fixation. Therefore, by using the fastening assembly 5 in conjunction with the centering assembly 4, the mold can be quickly and accurately installed and removed. Compared with the traditional method of fixing with bolts, this device provides a more convenient way to install the mold.

[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 modifications or substitutions that can be easily conceived by a person 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 based on the scope of protection of the claims.

Claims

1. A new type of frame hydraulic press, characterized by comprising: The main frame (101), the hydraulic plate (102), the hydraulic device (103) for controlling the displacement of the hydraulic plate (102), the connecting seat (105) fixed to the hydraulic plate (102), and the track (104) provided on the main frame (101) and slidably matched with the connecting seat (105); further comprising: a first threaded rod (201), the first threaded rod (201) being rotatably connected in the track (104); a connecting block (202), the connecting block (202) being threadedly connected on the first threaded rod (201); an adsorption cotton block (203), the adsorption cotton block (203) being slidably connected in the track (104), the adsorption cotton block (203) being fixedly connected to the connecting block (202), and the adsorption cotton block (203) being capable of absorbing and storing lubricating oil; and a threaded sleeve rod (204), the threaded sleeve rod (204) being threadedly connected on the connecting seat (105), the threaded sleeve rod (204) being spline-matched with the first threaded rod (201) so that the two can be simultaneously The invention relates to a connecting ring (205), wherein the top of the threaded sleeve rod (204) is rotatably connected to a connecting ring (205), and a connecting ring (205) is fixedly connected to the connecting seat (105). The threaded sleeve rod (204) passes through the connecting ring (205) on the connecting seat (105) and moves and rotates relative to the connecting ring (205). The 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 rod (204). The first return spring (206) is sleeved on the threaded sleeve rod (204). When the hydraulic plate (102) is in a non-working state, the first return spring (206) will be compressed. The cushion block (207) is rotatably connected to the main frame (101), and the connecting ring (205) on the threaded sleeve rod (204) will move to contact the cushion block (207).

2. A new frame hydraulic press according to claim 1, characterized in that: 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 amount of the first return spring (206) is 1 / n of the distance from the adsorption cotton block (203) to the bottom of the track (104).

3. A new frame hydraulic press according to claim 2, characterized in that include: The inner side wall of the track (104) is provided with mounting holes (301), which are distributed in an array; an extrusion head (302), wherein each mounting hole (301) is slidably connected to an extrusion head (302); and a second return spring (303), wherein a second return spring (303) is fixedly connected between the extrusion head (302) and the mounting hole (301).

4. A novel frame hydraulic press according to claim 3, characterized in that: The elastic force of the second return spring (303) is greater than the force required for deformation of the adsorption cotton block (203) in an unloaded state, and is less than the force required for deformation of the adsorption cotton block (203) in a fully loaded state.

5. A novel frame hydraulic press according to claim 4, characterized in that: The hydraulic plate (102) is provided with a mounting groove (106), and the mold is mounted on the hydraulic plate (102) through the mounting groove (106); it also includes: a second threaded rod (401), the hydraulic plate (102) is rotatably connected to the second threaded rod (401), both ends of the second threaded rod (401) are provided with threads with opposite rotation directions, the two second threaded rods (401) are set as a group, each mounting groove (106) is correspondingly provided with a group of second threaded rods (401), and the two second threaded rods (401) in the same group are respectively arranged on both sides of the same mounting groove (106); a mounting shaft (402), the hydraulic plate (102) is slidably connected to the mounting shaft (402), and the mounting shaft (402) is threadedly connected to the second threaded rod (401), and a mounting shaft (402) is matched with different threads at both ends of each second threaded rod (401); a push block (403), and a push block (403) is provided on each mounting shaft (402); a servo motor (404), and a servo motor (404) is fixedly connected to the hydraulic plate (102); a synchronous belt group (405), and a group of synchronous belt groups (405) are connected between two adjacent second threaded rods (401), and a group of synchronous belt groups (405) are connected between the output ends of the two servo motors (404) and one of the second threaded rods (401) on the hydraulic plates (102) on both sides.

6. A novel frame hydraulic press according to claim 5, characterized in that: The push block (403) is rotatably connected to the mounting shaft (402) and further comprises: a return torsion spring (406), wherein the return torsion spring (406) is fixedly connected between the push block (403) and the mounting shaft (402), and the return torsion spring (406) enables the push block (403) to move and push the mold to move along the mounting groove (106); and a folding block (407), wherein the folding block (407) is fixedly connected to the mounting groove (106), and an arc-shaped contact surface is provided on the folding block (407), and when the push block (403) moves to contact the folding block (407), the folding block (407) guides the push block (403) to fold into the mounting groove (106).

7. A new frame hydraulic press according to claim 6, characterized in that include: The oil cylinder (501) is fixedly connected to the hydraulic plate (102); the mounting box (502) is fixedly connected to the hydraulic plate (102), and the mounting box (502) and the oil cylinder (501) are correspondingly communicated; 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 oil cylinder (501) is started to control the pressing rod (503) to extend and retract. When the mold is installed on the hydraulic plate (102), the pressing rod (503) is extended to contact the mold.

8. A new frame hydraulic press according to claim 7, characterized in that include: Friction pattern (504): The bottom of the pressing rod (503) is provided with a friction pattern (504) for increasing the friction coefficient.

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