A multi-station rotary table control system for a hydraulic press

Abstract

The utility model relates to hydraulic machine die changing technical field especially, more multi -station rotary work platform control system for hydraulic machine, include: drive mechanism, rotary work platform mechanism, pressurization forming mechanism and demoulding mechanism, drive mechanism drives rotary work platform rotation cycle operation, pressurization forming mechanism with rotary work platform corresponds, is used for product forming, demoulding mechanism with pressurization forming mechanism corresponds, is used for product demolding, can reach the purpose of improving efficiency. The utility model has the advantages of: utilize multi -station press, reduce manpower and time cost, improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic press mold changing technology, and in particular to a multi-station rotary table control system for hydraulic presses. Background Technology

[0002] When existing hydraulic equipment is used for molding, the mold is placed directly on the worktable, and pressure is applied by the downward movement of the hydraulic press beam to form the product before demolding. However, this method can only press one product at a time and requires manual material handling and replacement, resulting in low work efficiency.

[0003] Therefore, this utility model proposes a multi-station rotary table control system for hydraulic presses, which can improve production efficiency. Summary of the Invention

[0004] The purpose of this utility model is to solve the problems existing in the prior art by proposing a multi-station rotary table control system for hydraulic presses.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A multi-station rotary table control system for a hydraulic press, characterized in that it includes: a drive mechanism, a rotary table mechanism, a pressure forming mechanism, and a demolding mechanism;

[0007] The drive mechanism includes a motor, a reducer, a base, and a gear set. The gear set is provided on the base and includes a driving gear, a driven gear, and a connecting gear. The motor is connected to the reducer, and the reducer drive shaft is connected to the driving gear. The driving gear meshes with the driven gear, and the driven gear meshes with the connecting gear.

[0008] The rotary worktable mechanism includes a support base, a rotating gear disk, a rotating table, and a worktable. The rotating gear disk is connected above the support base, and the rotating table is connected to the upper end of the rotating gear disk. Multiple worktables for placing molds are evenly distributed around the rotating table. The rotating gear disk meshes with the connecting gear. The rotary worktable mechanism rotates and cycles under the drive of the drive mechanism.

[0009] The pressure forming mechanism corresponds to the worktable and includes a forming mounting base, a pressure block base, a lower pressure ring, and an upper pressure ring. The forming mounting base corresponds to the pressure block base. The pressure block base has a through channel inside. The lower pressure ring is fixedly connected to the lower part of the upper pressure ring. The lower pressure ring and the upper pressure ring are slidably disposed in the channel of the pressure block base.

[0010] The demolding mechanism corresponds to the pressure molding mechanism and includes a demolding base and a hydraulic cylinder. The lower plane of the demolding base is fixedly connected to the upper plane of the pressure block base. A transverse hydraulic cylinder is fixedly connected to one side of the demolding base. A support block is fixedly connected inside the demolding base, and a demolding device is provided inside the support block.

[0011] It also includes a controller, and the drive mechanism, rotary table mechanism, pressure molding mechanism and demolding mechanism are electrically connected to the controller.

[0012] Furthermore, the demolding device includes a first wedge, a first guide cylinder, a second wedge, and a second guide cylinder. The first guide cylinder extends laterally through the support block. The output shaft of the hydraulic cylinder is connected to the first wedge. The first wedge is slidably disposed inside the first guide cylinder. A through hole is provided at one end of the first guide cylinder near the bottom of the demolding seat. The lower part of the through hole is connected to the second guide cylinder. The second wedge is slidably disposed inside the second guide cylinder. The axial directions of the second wedge and the first wedge are perpendicular to each other. The upper part of the second wedge is slidably connected to the lower part of the demolding seat, and the bottom of the second wedge is fixedly connected to the upper pressure ring. The contact surface between the first wedge and the second wedge is an inclined surface. The second guide cylinder is fixedly connected to the support block, and the lower end face of the second guide cylinder is flush with the lower end face of the demolding seat.

[0013] Furthermore, an active push block is fixedly connected to the top of the active gear, and push block cylinders are fixedly provided at both ends of the active push block. A driven push block is fixedly provided at the top of the driven gear.

[0014] Furthermore, the driven push block is shaped like a "racket", the arc surface of the "racket" handle is adapted to the outer arc surface of the push block cylinder, and the distance between the closest end faces of the two push block cylinders is greater than the maximum diameter of the driven push block.

[0015] Furthermore, the driven gear is an intermittent gear, and the intermittent surface of the intermittent gear corresponds to the extension direction of the driven push block.

[0016] Furthermore, the number of workbenches is 5, and the end face of each workbench is provided with a mold hole for placing the liner.

[0017] Furthermore, the workbenches are connected by connecting rods.

[0018] Furthermore, an annular step is provided at the lower end of the pressure block seat channel, and an annular boss is provided at the upper end of the lower pressure ring. The annular boss can abut against the annular step, and the lower end of the lower pressure ring slides in the pressure block seat channel. The outer diameter of the upper pressure ring is smaller than the inner diameter of the annular step.

[0019] Furthermore, the bottom of the annular step and the upper pressing ring are elastically connected.

[0020] Furthermore, the contact surface between the first wedge-shaped column and the second wedge-shaped column is an inclined surface, the second guide cylinder is fixedly connected to the support block, and the lower end surface of the second guide cylinder is flush with the lower end surface of the demolding seat.

[0021] Furthermore, a concave notch is provided on one side of the lower end of the second wedge-shaped column, and a limiting block is fixedly connected to the bottom of the demolding base, with the notch surface and the limiting block being slidably connected.

[0022] Compared with existing technologies, the multi-station rotary table control system for hydraulic presses provided by this utility model has the following advantages:

[0023] 1. Utilize multi-station pressing to reduce labor and time costs and improve work efficiency;

[0024] 2. The rotation angle of the rotating gear disk is precisely controlled by intermittent gears, resulting in smooth operation and high positioning accuracy. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0026] Figure 2 This is a schematic diagram of the drive mechanism of this utility model;

[0027] Figure 3 This is a schematic diagram of the driving gear in the drive mechanism;

[0028] Figure 4 This is a schematic diagram of the driven gear in the drive mechanism;

[0029] Figure 5 This is a schematic diagram of the rotary table mechanism of this utility model;

[0030] Figure 6 This is a cross-sectional schematic diagram of the pressure forming mechanism of this utility model;

[0031] Figure 7 This is a cross-sectional schematic diagram of the demolding mechanism of this utility model;

[0032] In the diagram: 1. Drive mechanism; 11. Motor; 12. Base; 13. Drive gear; 131. Driven push block; 132. Push block cylinder; 14. Driven gear; 141. Driven push block; 15. Connecting gear; 2. Rotary worktable mechanism; 21. Support base; 22. Rotary gear disk; 23. Rotary table; 24. Worktable; 241. Mold hole; 25. Connecting rod; 3. Pressure molding mechanism; 31. Molding mounting base; 32. Press block base; 33. Lower pressing ring; 34. Upper pressing ring; 35. Annular step; 36. Connecting block; 37. Limiting post; 4. Demolding mechanism; 40. First guide cylinder; 41. First wedge post; 42. Second wedge post; 421. Second guide cylinder; 43. Demolding base; 44. Oil cylinder; 45. Support block; 46. Notch surface; 47. Limiting block; 5. Liner. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. At the same time, the terms "first", "second", etc. are only used to distinguish the names of each component and do not have a primary or secondary relationship. Therefore, they should not be construed as limitations on this utility model.

[0035] Example 1, such as Figure 1 , Figure 2 and Figure 5 As shown, a multi-station rotary table for a hydraulic press includes: a drive mechanism 1; a rotary table mechanism 2; a pressure forming mechanism 3; and a demolding mechanism 4.

[0036] The drive mechanism 1 includes a motor 11, a reducer, a base 12, and a gear set. The base 12 is provided with a gear set, which includes a driving gear 13, a driven gear 14, and a connecting gear 15. The motor 11 is connected to the reducer, and the reducer drive shaft is connected to the driving gear 13. The driving gear 13 meshes with the driven gear 14, and the driven gear 14 meshes with the connecting gear 15.

[0037] The rotary worktable mechanism 2 includes a support base 21, a rotary gear disk 22, a rotary table 23, and a worktable 24. The rotary gear disk 22 is connected above the support base 21, and the rotary table 23 is connected to the upper end of the rotary gear disk 22. Multiple worktables 24 for placing molds are evenly distributed around the rotary table 23. The rotary gear disk 22 meshes with the connecting gear 15. The rotary worktable mechanism 2 rotates and operates in cycles under the drive of the drive mechanism 1.

[0038] Example 2, as Figure 3 and Figure 4 As shown, in order to enable multiple worktables 24 to continuously perform pressing operations, in this embodiment, the driven gear 14 is an intermittent gear, the intermittent surface of the intermittent gear corresponds to the extension direction of the driven push block 141, and the height of the intermittent surface of the intermittent gear is equal to the height of the driving gear 13.

[0039] The driven gear 14 has a circumference that is one-fifth the circumference of the rotating gear disk 22, and the interval time is the time it takes for the press to press the raw material in the mold and demold it.

[0040] In order to enable the driven gear 14 to move continuously, the top of the driving gear 13 is fixedly connected to the driving push block 131, and the two ends of the driving push block 131 are fixedly provided with push block cylinders 132. The top of the driven gear 14 is fixedly provided with the driven push block 141.

[0041] The driven push block 141 is shaped like a "racket". The arc surface of the "racket" handle is adapted to the outer arc surface of the push block cylinder 132. The distance between the end faces of the two push block cylinders 132 is greater than the maximum diameter of the driven push block 141.

[0042] When the motor 11 drives the drive gear 13 to rotate, the drive push block 131 will also rotate. The driven push block 141 will also be driven to rotate by the driven gear 14. Since the direction of the driven push block 141 is the same as the direction of the intermittent surface of the intermittent gear, when the driven push block 141 rotates between the two push block cylinders 132, the intermittent surface of the driven gear 14 will not be meshed with the gear, and the driven gear 14 will stop rotating. The rotating gear disk 22 will also stop rotating. When the push block cylinder 132 on the left rotates to the arc-shaped surface at the root of the driven push block 141 under the drive of the drive gear 13, the driven push block 141 will be pushed by the push block cylinder 132. When the two push block cylinders 132 on the drive gear 13 continue to rotate, the driven push block 141 will drive the driven gear 14 to rotate. In this way, the driven gear 14 will mesh with the drive gear 13 again, and then drive the connecting gear 15 to rotate, and finally drive the rotating gear disk 22 to rotate. The two pusher cylinders 132 on the drive gear 13 alternately push the driven pusher 141, thus enabling continuous cyclic operation.

[0043] In Example 3, to make the connection between multiple workbenches 24 more secure, a connecting rod 25 is provided between two adjacent workbenches 24.

[0044] In this embodiment, there are 5 worktables 24, and each worktable 24 has a mold hole 241 for placing a mold on its end face.

[0045] Example 4, as Figure 1 and Figure 6 As shown, the pressure molding mechanism 3 corresponds to the worktable 24 and includes a molding mounting base 31, a pressure block base 32, a lower pressure ring 33, and an upper pressure ring 34. The molding mounting base 31 corresponds to the pressure block base 32. The pressure block base 32 has a through channel inside. The lower pressure ring 33 is fixedly connected to the lower part of the upper pressure ring 34. The lower pressure ring 33 and the upper pressure ring 34 are slidably disposed in the channel of the pressure block base 32.

[0046] In this embodiment, an annular step 35 is provided at the lower end of the channel of the pressure block seat 32. When the lower pressing ring 33 and the upper pressing ring 34 slide in the channel of the pressure block seat 32, the lower pressing ring can slide at the lower end of the channel of the pressure block seat 32 because the inner diameter of the annular step 35 is larger than the outer diameter of the lower pressing ring 33. The outer diameter of the upper pressing ring 34 is set to be smaller than the inner diameter of the annular step 35, so the upper pressing ring 34 can only slide on the annular step 35. Since the upper end of the lower pressing ring 33 is provided with an annular boss, the annular boss can abut against the annular step 35. When the annular boss abuts against the annular step 35, the lower pressing ring 33 will stop moving. The annular step 35 can play a limiting role for the upper pressing ring 34 and the lower pressing ring 33.

[0047] The annular step 35 and the upper pressing ring 34 are elastically connected, specifically by a spring connection.

[0048] Example 5, as Figure 7 As shown, the demolding mechanism 4 corresponds to the pressure molding mechanism 3 and includes a first wedge post 41, a first guide cylinder 40, a second wedge post 42, a second guide cylinder 421, a demolding seat 43, and a hydraulic cylinder 44. The lower plane of the demolding seat 43 is fixedly connected to the upper plane of the pressure block seat 32. A transverse hydraulic cylinder 44 is fixedly connected to one side of the demolding seat 43. A support block 45 is fixedly connected inside the demolding seat 43. The first guide cylinder 40 passes through the support block 45 laterally. The output shaft of the hydraulic cylinder 44 is connected to the first wedge post 41. The first wedge post 41 is slidably disposed inside the first guide cylinder 40. A through hole is provided at one end of the first guide cylinder 40 near the bottom of the demolding seat 43. The lower part of the through hole is connected to the second guide cylinder 421. The second wedge post 42 is slidably disposed inside the second guide cylinder 421. The axial directions of the second wedge post 42 and the first wedge post 41 are perpendicular to each other. The lower end of the first wedge post 41 passes through the demolding seat 43 and is fixedly connected to the upper pressure ring 34.

[0049] The contact surfaces of the first wedge post 41 and the second wedge post 42 are inclined surfaces. The second guide cylinder 421 is fixedly connected to the support block 45, and the lower end face of the second guide cylinder 421 is flush with the lower end face of the demolding base 43. The second guide cylinder 421 is fixed in the support block 45 in the demolding base 43 by interference fit, and serves as a guide for the second wedge post 42.

[0050] In practical use, the pressure forming mechanism 3 is installed on the lower beam of the hydraulic press, the demolding mechanism 4 is installed on the movable beam of the hydraulic press, and each workbench 24 in the rotating workbench mechanism 2 can rotate to the top of the pressure forming mechanism 3 and correspond to the demolding mechanism 4. The top of the forming mounting base 31 corresponds to the mold hole 241 of the workbench 24. During pressing, the forming mounting base 31 plays a supporting role.

[0051] To facilitate observation of the material forming and easy demolding, a connecting block 36, which is closed on three sides and open on one side, is fixedly connected to the bottom of the pressure block base 32. A limit post 37 is fixedly connected below the connecting block 36.

[0052] When pressing, the hydraulic press moving beam presses down, which drives the demolding seat 43 to move down, thereby driving the pressure block seat 32 to move down. Finally, the lower pressure block 33 enters the mold to contact the material for pressing, and the limiting post 37 plays a limiting role.

[0053] Here, the demolding seat 43 plays the role of transmitting pressure.

[0054] When demolding is required, the output shaft of the hydraulic cylinder 44 extends and pushes the first wedge-shaped column 41 to move along the first guide cylinder 40. Since the first wedge-shaped column 41 and the second wedge-shaped column 42 are in inclined contact, the second wedge-shaped column 42 will move downward along the second guide cylinder 421, thereby driving the lower pressing ring 33 and the upper pressing ring 34 to move downward, sending the molded material downward, and the finished product after pressing can be taken out.

[0055] In Example 6, to ensure the stroke range of the second wedge-shaped column 42, an inwardly recessed notch surface 46 is provided on one side of the lower end of the second wedge-shaped column 42. A limiting block 47 is fixedly connected to the bottom of the demolding base 43, and the notch surface 46 is slidably connected to the limiting block 47. The second guide cylinder 421 is provided with the same notch as the second wedge-shaped column 42, which facilitates the installation of the limiting block 47 and also facilitates the second wedge-shaped column 42 to abut against the limiting block 47 after sliding down.

[0056] A control method includes the multi-station rotary table control system for a hydraulic press described above.

[0057] S1: First, install the mold in the mold hole 241 of each workbench 24, and fill the mold with material;

[0058] S2: The first worktable 24 rotates to be above the pressure forming mechanism 3;

[0059] S3: Suppression;

[0060] S4: Demolding;

[0061] S5: After the first mold is demolded, the rotary table 23 begins to rotate, and the second worktable 24 rotates to above the pressure forming mechanism 3 to begin pressing.

[0062] S6: While pressing on the second workbench 24, fill the first mold after demolding;

[0063] S7: After the second mold is demolded, the rotary table 23 is rotated again to press the third mold, while filling the second mold at the same time. This cycle is repeated until all pressing work is completed.

[0064] In S2, when the control system controls the first worktable 24 to rotate above the pressure molding mechanism 3, the driving gear 13 and the driven gear 14 are not meshed.

[0065] In S3, during pressing, the drive gear 13 continues to rotate, and the push block cylinder 132 on the drive gear 13 drives the driven push block 141 to rotate.

[0066] In step S4, the first wedge-shaped column 41 is pushed by the oil cylinder 44, and the first wedge-shaped column 41 pushes the second wedge-shaped column 42, thereby pushing the pressing ring 33 downward and taking out the molded product;

[0067] In S5, after pressing and demolding, the controller controls the active gear 13 to continue rotating. When the active gear 13 and the driven gear 14 rotate to mesh, they drive the connecting gear 15 to rotate, thereby driving the rotating gear disk 22 to rotate. When the active gear 13 rotates to the point where the intermittent surfaces of the driven gear 14 are opposite each other, the second worktable 24 rotates to the top of the pressure forming mechanism 3.

[0068] When the second worktable 24 rotates from its initial position to the pressure forming mechanism 3, the transmission ratio between the drive gear 13 and the rotary gear disk 22... i 总 It can be represented as: Among them, Z 主动 Z represents the number of teeth on the driving gear 13. 旋转 It is the number of teeth on the rotating gear disk 22.

[0069] The rotational speed of the drive gear 13 can be expressed as:

[0070] ,

[0071] Where N is the number of worktables (24), T 间隔The interval between the start of pressing and demolding on workbench 24. i The transmission ratio between the drive gear 13 and the rotating gear disk 22.

[0072] In this embodiment, the interval T between the start of pressing and demolding on the worktable 24 is defined as follows: 间隔 It takes 5 seconds. The number of worktables 24, N is 5. The number of teeth on the rotating gear disk 22 is 40. The number of teeth on the driving gear 13 is 20. Substituting these values ​​into the formula:

[0073] ,

[0074] but ,

[0075] Once the rotational speed of the drive gear 13 is calculated, a program can be written in the control system to control the rotational speed of the drive gear 13.

[0076] Working principle: The demolding mechanism 4 is bolted to the movable beam of the hydraulic press, and the pressure forming mechanism 3 is fixedly installed on the lower beam of the hydraulic press. A mold is inserted into the liner 5 in the worktable 24, followed by material loading. In one embodiment, the molds are an upper mold and a lower mold. Then, the gear set of the rotating worktable mechanism 2 is activated, causing the worktable 24 to rotate onto the pressure forming mechanism 3. At this point, the driving gear 13 rotates to the intermittent surface of the driven gear 14, the worktable 24 stops rotating, and the hydraulic press begins pressing. (Reference) Figure 6 The lower ring 33 is pressed to press the product. After pressing, the movable beam moves upward, driving the demolding seat 43 to move upward. The molded product moves upward with the upper mold.

[0077] At this time, the output shaft of the hydraulic cylinder 44 in the demolding mechanism 4 extends, driving the first wedge post 41 to slide along the inside of the first guide cylinder 40. When it contacts the second wedge post 42, as the output shaft of the hydraulic cylinder 44 continues to output, the first wedge post 41 will abut against the second wedge post 42, and the second wedge post 42 will move downward. When it moves to the limit block 47, it stops moving. The upper pressure ring 34 also just moves to the annular step 35. At this time, the molded product can be removed. Then, the output shaft of the hydraulic cylinder 44 retracts, and the first wedge post 41 will also retract. Because there is a spring connecting the bottom of the annular step 35 and the upper pressure ring 34, when the second wedge post 42 loses force, the spring will drive the upper pressure ring 34 to automatically reset. Therefore, the second wedge post 42 will also be pushed and reset by the upper pressure ring 34.

[0078] After the demolding action is completed, the pusher cylinder 132 pushes the driven pusher 141, the drive gear 13 and the driven gear 14 mesh, and the rotating gear disk 22 rotates another worktable 24 to correspond with the pressure forming mechanism 3, and performs the pressing operation again. The pressing is carried out in a cycle until all pressing operations are completed.

[0079] Robots can be used to load materials into the mold, which can save labor costs.

[0080] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A control system for a multi-station rotary table of a hydraulic press, characterized in that: include: Drive mechanism (1), rotary table mechanism (2), pressure forming mechanism (3) and demolding mechanism (4); The drive mechanism (1) includes a motor (11), a reducer, a base (12), and a gear set. The base (12) is provided with a gear set, which includes a drive gear (13), a driven gear (14), and a connecting gear (15). The motor (11) is connected to the reducer, and the drive shaft of the reducer is connected to the drive gear (13). The drive gear (13) meshes with the driven gear (14), and the driven gear (14) meshes with the connecting gear (15). The rotating worktable mechanism (2) includes a support base (21), a rotating gear disk (22), a rotating table (23), and a worktable (24). The rotating gear disk (22) is connected above the support base (21), and the rotating table (23) is connected to the upper end of the rotating gear disk (22). Multiple worktables (24) for placing molds are evenly distributed around the rotating table (23). The rotating gear disk (22) meshes with the connecting gear (15). The rotating worktable mechanism (2) rotates and operates in cycles under the drive of the drive mechanism (1). The pressure molding mechanism (3) corresponds to the worktable (24) and includes a molding mounting base (31), a pressure block base (32), a lower pressure ring (33), and an upper pressure ring (34). The molding mounting base (31) corresponds to the pressure block base (32). The pressure block base (32) has a through channel inside. The lower pressure ring (33) is fixedly connected to the lower part of the upper pressure ring (34). The lower pressure ring (33) and the upper pressure ring (34) are slidably disposed in the channel of the pressure block base (32). The demolding mechanism (4) corresponds to the pressure molding mechanism (3) and includes a demolding seat (43) and an oil cylinder (44). The lower plane of the demolding seat (43) is fixedly connected to the upper plane of the pressure block seat (32). A horizontal oil cylinder (44) is fixedly connected to one side of the demolding seat (43). A support block (45) is fixedly connected inside the demolding seat (43). A demolding device is provided inside the support block (45). It also includes a controller, and the drive mechanism (1), the rotary table mechanism (2), the pressure molding mechanism (3) and the demolding mechanism (4) are electrically connected to the controller.

2. The control system for a multi-station rotary table of a hydraulic press according to claim 1, characterized in that, The demolding device includes a first wedge (41), a first guide cylinder (40), a second wedge (42), and a second guide cylinder (421). The first guide cylinder (40) extends laterally through the support block (45). The output shaft of the hydraulic cylinder (44) is connected to the first wedge (41). The first wedge (41) is slidably disposed inside the first guide cylinder (40). A through hole is provided at one end of the first guide cylinder (40) near the bottom of the demolding base (43). The second guide cylinder (421) is connected to the lower part of the through hole. A second wedge-shaped column (42) is slidably disposed inside the mold base (43). The axial direction of the second wedge-shaped column (42) is perpendicular to that of the first wedge-shaped column (41). The upper part of the second wedge-shaped column (42) is slidably connected to the lower part of the mold release seat (43), and the bottom of the second wedge-shaped column (42) is fixedly connected to the upper pressure ring (34). The contact surface between the first wedge-shaped column (41) and the second wedge-shaped column (42) is an inclined surface. The second guide cylinder (421) is fixedly connected to the support block (45). The lower end face of the second guide cylinder (421) is flush with the lower end face of the mold release seat (43).

3. The control system for a multi-station rotary table of a hydraulic press according to claim 1, characterized in that: The top of the drive gear (13) is fixedly connected to the drive push block (131), and the two ends of the drive push block (131) are fixedly provided with push block cylinders (132). The top of the driven gear (14) is fixedly provided with a driven push block (141).

4. A multi-station rotary table control system for a hydraulic press according to claim 3, characterized in that: The driven push block (141) is shaped like a "racket". The arc surface of the handle of the "racket" is adapted to the outer arc surface of the push block cylinder (132). The distance between the closest end faces of the two push block cylinders (132) is greater than the diameter of the driven push block (141) at its maximum.

5. A multi-station rotary table control system for a hydraulic press according to claim 3, characterized in that: The driven gear (14) is an intermittent gear, and the intermittent surface of the intermittent gear corresponds to the extension direction of the driven push block (141).

6. A multi-station rotary table control system for a hydraulic press according to claim 1, characterized in that: The number of workbenches (24) is 5. The end face of each workbench (24) is provided with a mold hole (241) for placing the liner (5). A connecting rod (25) is provided between two adjacent workbenches (24).

7. A control system for a multi-station rotary table of a hydraulic press according to claim 1, characterized in that: The lower end of the channel of the pressure block seat (32) is provided with an annular step (35), the upper end of the lower pressure ring (33) is provided with an annular boss, the annular boss can abut against the annular step (35), the lower end of the lower pressure ring (33) slides in the channel of the pressure block seat (32), the outer diameter of the upper pressure ring (34) is smaller than the inner diameter of the annular step (35), and the annular step (35) and the upper pressure ring (34) are elastically connected.

8. A control system for a multi-station rotary table of a hydraulic press according to claim 2, characterized in that: The second wedge-shaped column (42) has an inwardly concave notch (46) on one side of its lower end. The bottom of the demolding base (43) is fixedly connected to a limiting block (47), and the notch (46) is slidably connected to the limiting block (47).

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