A hydraulic press with safety protection device

Abstract

The present invention relates to the technical field of hydraulic presses, and discloses a hydraulic press with a safety protection device, comprising: an operating table; a hydraulic component for performing hydraulic operations; a clamping component for clamping materials; a protection component for protecting personnel during hydraulic operations; a cooling component for cooling the hydraulic component; the clamping component comprises a base, the base is mounted on the operating table, a round table is mounted on the base, and four mounting grooves and four guide holes are provided on the base. Through the cooperation of the hydraulic component and the clamping component, before the pressing block contacts the material, the multiple support blocks on the four clamping blocks can stably clamp the material from four directions to prevent the material from shaking or popping out during the operation; through the cooperation of multiple support blocks and multiple steel balls, the multiple support blocks can fit irregular materials and effectively clamp the irregular materials.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic presses, and in particular to a hydraulic press with a safety protection device. Background Art

[0002] A hydraulic press is a machine that uses liquid as the working medium and is made according to Pascal's principle to transfer energy to achieve various processes. A hydraulic press generally consists of three parts: the machine, the power system, and the hydraulic control system. Hydraulic presses are classified into valve hydraulic presses, liquid hydraulic presses, and engineering hydraulic presses.

[0003] Chinese patent CN209832694U discloses "a high-precision single-column hydraulic press", including a workbench, a support rod, a support plate, a limit plate and a hydraulic device. The support plate is fixedly mounted on the workbench through the support rod, the hydraulic device is fixedly mounted in the middle of the support plate, the hydraulic column of the hydraulic device slides downward through the support plate, the limit plate is fixedly mounted in the middle of the support rod, and the middle of the limit plate is provided with a limit hole for the hydraulic column to slide linearly. It also includes a positioning module and a shock-absorbing module. A positioning block is fixedly mounted on the side wall of the workbench, and the two ends of the positioning module are respectively fixedly mounted on the support plate and the positioning block; the two ends of the shock-absorbing module are respectively fixedly mounted on the support plate and the positioning block. This patent is mainly used to improve the machining accuracy of the hydraulic press on the workpiece, and at the same time it can increase the replacement cycle of parts and save costs.

[0004] However, the prior art has the following problems:

[0005] 1. In the prior art, during the hydraulic process, when the material is not clamped stably, the material may be subjected to greater pressure, which may cause the material to break away from the clamp and pop out, posing a risk of injuring people.

[0006] 2. In the prior art, when hydraulic operations are performed on fragile objects, the fragile objects may break, causing fragments to fly and posing a risk of injuring people. Summary of the invention

[0007] The purpose of the present invention is to provide a hydraulic press with a safety protection device in order to solve the above-mentioned problems and overcome the defects of the prior art, as described in detail below.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A hydraulic press with a safety protection device provided by the present invention comprises: an operating table; a hydraulic component for performing hydraulic operations; a clamping component for clamping materials; a protection component for protecting personnel during hydraulic operations; and a cooling component for cooling the hydraulic component; the hydraulic component is arranged on the operating table, the clamping component is arranged on the operating table, the protection component is arranged on the operating table, and the cooling component is arranged on the hydraulic component; the hydraulic component comprises a frame, the frame is connected to the rear side of the operating table, a hydraulic cylinder is installed on the frame, an output end is arranged on the hydraulic cylinder, a guide plate is connected to the bottom of the output end, a pressure block is installed at the bottom of the guide plate, two main guide rods are installed between the operating table and the frame, the two main guide rods are slidably connected to the inner wall of the guide plate, and four secondary guide rods are installed at the bottom of the guide plate;

[0010] The clamping assembly includes a base, which is mounted on an operating table, a round table is mounted on the base, four mounting grooves and four guide holes are provided on the base, a No. 1 slider is slidably mounted in the four guide holes of the base, a No. 1 connecting rod is hinged at the bottom of the No. 1 slider, a No. 2 slider is hinged at one end of the No. 1 connecting rod away from the No. 1 slider, a No. 2 connecting rod is hinged on the No. 2 slider, four supports are mounted on the operating table, mounting plates are rotatably mounted on the four supports, the four mounting plates are hinged to the four No. 2 connecting rods, respectively, a clamping block is connected to the mounting plate via a spring, the four clamping blocks are respectively located in the four mounting grooves of the base, and the four secondary guide rods are respectively in contact with the four No. 1 sliders during movement.

[0011] Preferably, two lubrication cylinders are respectively installed on the top and bottom surfaces of the guide plate, and the four lubrication cylinders are divided into two groups. The two groups of lubrication cylinders are respectively slidably connected to the two main rods, and scraper rings are installed in the lubrication cylinders. An inner tube is connected between the two lubrication cylinders in the same group, and a one-way valve is arranged in the inner tube. The outer wall of the inner tube is slidably connected to the inner wall of the guide plate.

[0012] Preferably, the four No. 2 slide blocks are all slidably connected to the operating table, and springs are respectively connected between the four No. 2 slide blocks and the four supports.

[0013] Preferably, a plurality of support blocks are slidably mounted on the inner wall of the clamping block, a plurality of steel balls are arranged inside the clamping block, one end of the support block is located outside the clamping block, and the other end of the support block is in contact with the plurality of steel balls.

[0014] Preferably, the protective assembly includes a front guard plate, which is slidably mounted on the inner wall of the operating table. Two side guard plates are also mounted on the inner wall of the operating table. The two side guard plates are respectively located on both sides of the base. The front guard plate is located on the front side of the base. Racks are respectively connected to both sides of the front guard plate and one side of the two side guard plates. Two gears are rotatably mounted at the bottom of the operating table. The two racks located on one side of the base are meshed with one of the gears, and the two racks located on the other side of the base are meshed with the other gear. Two lower pressure plates are connected to the guide plate, and the two lower pressure plates are respectively in contact with the two side guard plates during movement.

[0015] Preferably, an observation window is provided on the front guard plate, and a counterweight is connected to the bottom of the front guard plate.

[0016] Preferably, two rotating shafts are rotatably installed on the operating table, cleaning rollers are installed on the outer walls of the rotating shafts, rubber wheels are respectively connected to both ends of the rotating shafts, two rubber strips are respectively installed on the front and rear sides of the front guard plate, the four rubber strips are respectively in contact with the four rubber wheels during movement, and the front and rear sides of the observation window are respectively in contact with the two cleaning rollers during movement.

[0017] Preferably, the cooling assembly includes a water tank, which is mounted on a guide plate, on which an airbag is mounted, the outer walls of the two main rods are respectively slidably connected with a downward pressure rod, on which an adjustment wire is provided, and the airbag contacts one of the downward pressure rods during movement, and rotating blocks are respectively rotatably mounted on the front and rear sides of the guide plate, on which a water pipe and a nozzle are mounted, and both water pipes are connected to the water tank.

[0018] Preferably, a rebound block is installed on the guide plate through a spring, and the rebound block contacts another downward pressure rod during movement. Two No. 3 connecting rods are hinged on the rebound block, and two sliding rods are slidably installed on the guide plate. The two sliding rods are respectively hinged to the two No. 3 connecting rods, and a shift fork is installed on the sliding rod. A shift rod is connected to the rotating block, and the two shift forks are respectively in contact with the two shift rods.

[0019] The beneficial effects are:

[0020] 1. The hydraulic press with a safety protection device, through the cooperation of the hydraulic assembly and the clamping assembly, enables the multiple support blocks on the four clamping blocks to stably clamp the material from four directions before the pressing block contacts the material, so as to prevent the material from shaking or ejecting during operation; through the cooperation of multiple support blocks and multiple steel balls, the multiple support blocks can fit irregular materials and effectively clamp the irregular materials; through the cooperation of four lubrication cylinders, the guide plate can be lubricated by grease during the movement, thereby extending the service life of the guide plate, and the grease can be applied and recovered according to the movement of the guide plate, so as to keep the part of the main rod exposed to the air relatively dry, so as to avoid the grease being contaminated with a lot of dust after long-term use, thereby affecting the lubrication effect and being inconvenient to clean.

[0021] 2. The hydraulic press with safety protection device, through the setting of protection components, when the pressing block moves downward, the front guard plate can automatically rise to protect the front side of the material to prevent the material from breaking and splashing and injuring the staff. After the operation is completed, as the pressing block rises, the front guard plate automatically descends without hindering the staff from taking and placing the material; through the setting of two cleaning rollers, the two cleaning rollers can clean the observation window on the front guard plate by rotating, keep the observation window clean, and facilitate the staff to observe the material status.

[0022] 3. The hydraulic press with safety protection device, through the setting of cooling components, enables the two nozzles to cool down the pressed blocks by spraying coolant after the pressing operation is completed, so as to avoid overheating of the pressed blocks and affect the service life, and reduce the failure rate; through the setting of two rotating blocks, the two rotating blocks can be turned upward during operation to avoid affecting the operation process. After the operation is completed, the two rotating blocks are turned downward so that the two nozzles are aimed at the pressed blocks again for water cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the structure of the hydraulic assembly of the present invention;

[0026] Figure 3 It is a schematic diagram of the structure of the lubrication cylinder of the present invention;

[0027] Figure 4It is a schematic diagram of the structure of the clamping assembly of the present invention;

[0028] Figure 5 It is a schematic diagram of the structure of the clamping block of the present invention;

[0029] Figure 6 It is a schematic diagram of the support block structure of the present invention;

[0030] Figure 7 It is a schematic diagram of the structure of the protection component of the present invention;

[0031] Figure 8 The present invention Figure 7 A magnified schematic diagram of point A;

[0032] Fig. 9 It is a schematic diagram of the structure of the observation window of the present invention;

[0033] Fig.10 It is a schematic diagram of the cleaning roller structure of the present invention;

[0034] Fig.11 It is a schematic diagram of the cooling assembly structure of the present invention;

[0035] Fig.12 It is a schematic diagram of the rotating block structure of the present invention;

[0036] Fig.13 It is a schematic diagram of the slide bar structure of the present invention.

[0037] The accompanying drawings are described as follows: 1. operating table; 2. hydraulic assembly; 21. frame; 22. hydraulic cylinder; 23. output end; 24. guide plate; 25. main rod; 26. secondary guide rod; 27. lubricating cylinder; 28. scraper ring; 29. ​​inner tube; 210. pressing block; 3. clamping assembly; 31. base; 32. round table; 33. slider No. 1; 34. connecting rod No. 1; 35. slider No. 2; 36. connecting rod No. 2; 37. support; 38. mounting plate; 39. clamping block; 310. supporting block; 311. Steel ball; 4. Protection component; 41. Front guard plate; 42. Observation window; 43. Counterweight; 44. Rack; 45. Gear; 46. Side guard plate; 47. Lower pressure plate; 48. Rubber strip; 49. Rotating shaft; 410. Cleaning roller; 411. Rubber wheel; 5. Cooling component; 51. Lower pressure rod; 52. Adjusting wire; 53. Air bag; 54. Water tank; 55. Water pipe; 56. Rotating block; 57. Nozzle; 58. Lever; 59. Fork; 510. Sliding rod; 511. No. 3 connecting rod; 512. Rebound block. DETAILED DESCRIPTION

[0038] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention. Example 1

[0039] See also Figure 1 - Figure 6 A hydraulic press with a safety protection device comprises: an operating table 1; a hydraulic assembly 2 for performing hydraulic operations, the hydraulic assembly 2 being arranged on the operating table 1, the hydraulic assembly 2 comprising a frame 21, the frame 21 being connected to the rear side of the operating table 1, a hydraulic cylinder 22 being mounted on the frame 21, an output end 23 being arranged on the hydraulic cylinder 22, a guide plate 24 being connected to the bottom of the output end 23, a pressure block 210 being mounted on the bottom of the guide plate 24, two main guide rods 25 being mounted between the operating table 1 and the frame 21, the two main guide rods 25 being The guide plate 24 is slidably connected to the inner wall of the guide plate 24. When the guide plate 24 moves, it slides along the two main rods 25. The two main rods 25 play a guiding role to prevent the movement trajectory of the guide plate 24 from deviating. Four secondary guide rods 26 are installed at the bottom of the guide plate 24. Two lubricating cylinders 27 are installed on the top and bottom surfaces of the guide plate 24 respectively. The four lubricating cylinders 27 are divided into two groups. The two groups of lubricating cylinders 27 are slidably connected to the two main rods 25 respectively. A scraper ring 28 is installed in the lubricating cylinder 27. An inner tube 29 is connected between the two lubricating cylinders 27 in the same group. , a one-way valve is arranged in the inner tube 29, and the one-way valves of the two inner tubes 29 between the two lubricating cylinders 27 are arranged in reverse, and the outer wall of the inner tube 29 is slidably connected with the inner wall of the guide plate 24, and there is a certain gap between the lubricating cylinder 27 and the main rod 25, and the scraper ring 28 is in contact with the main rod 25, and the grease in the two lubricating cylinders 27 circulates and replenishes. Since the guide plate 24 is located between the four lubricating cylinders 27, when the guide plate 24 slides on the two main rods 25, the contact position is always kept with grease for lubrication, and the main rod 25 position that is not in contact with the guide plate 24 is cleaned of grease by the scraper ring 28, and remains in a relatively dry state to avoid being contaminated with dust; through the cooperation of the four lubricating cylinders 27, the guide plate 24 can be lubricated by the grease during the movement, thereby extending the service life of the guide plate 24, and the grease can be applied and recovered according to the movement of the guide plate 24, so that the part of the main rod 25 exposed to the air is kept relatively dry, and it is avoided that after long-term use, the grease is contaminated with a lot of dust to affect the lubrication effect, and it is not easy to clean;

[0040] The clamping assembly 3 is used to clamp materials. The clamping assembly 3 is arranged on the operating table 1. The clamping assembly 3 includes a base 31, which is installed on the operating table 1. A round table 32 is installed on the base 31. Four mounting grooves and four guide holes are arranged on the base 31. When the guide plate 24 is in motion, four secondary guide rods 26 are inserted into the four guide holes on the base 31. The four secondary guide rods 26 play a stabilizing role in the hydraulic process to prevent the pressing block 210 from shaking or deflecting when pressing irregular materials. A No. 1 slider 33 is slidably installed in the four guide holes of the base 31 respectively. A No. 1 connecting rod 34 is hinged at the bottom of the No. 1 slider 33. A No. 2 slider 35 is hinged at one end of the No. 1 connecting rod 34 away from the No. 1 slider 33. A No. 2 connecting rod 36 is hinged, and four supports 37 are installed on the operating table 1. The four supports 37 are respectively rotatably installed with mounting plates 38. The four mounting plates 38 are respectively hinged to the four No. 2 connecting rods 36. The mounting plates 38 are connected with clamping blocks 39 through springs. The four clamping blocks 39 are respectively located in four mounting grooves of the base 31. The four clamping blocks 39 can approach the material on the round table 32 from four directions respectively. The four secondary guide rods 26 contact the four No. 1 sliders 33 respectively during the movement. The secondary guide rods 26 contact the No. 1 slider 33 and squeeze the No. 1 slider 33 downward during the sliding process in the guide hole. The four No. 2 sliders 35 are all slidably connected to the operating table 1. The operating table 1 limits the four No. 2 sliders 35. Springs are connected between the slider 35 and the four supports 37 respectively, and the four clamping blocks 39 can be reset by using the spring force between the second slider 35 and the support 37; a plurality of support blocks 310 are slidably installed on the inner wall of the clamping block 39, and the plurality of support blocks 310 on the four clamping blocks 39 clamp the material stably after contacting the material, and keep the material at the center position of the truncated table 32, and a plurality of steel balls 311 are arranged inside the clamping block 39, one end of the support block 310 is located outside the clamping block 39, and the other end of the support block 310 contacts the plurality of steel balls 311, and part of the support blocks 310 on the clamping block 39 contacts the protruding part of the material first, so that the protruding part of the material pushes the support block 310 toward the inside of the clamping block 39, and the support block After being pushed, 310 squeezes multiple steel balls 311, and the squeezed steel balls 311 support other support blocks 310, so that other support blocks 310 can fit the concave surface of the material. The multiple support blocks 310 cooperate with the multiple steel balls 311 to achieve the effect of adaptive fitting and clamping according to the contact surface of the material; through the cooperation of the hydraulic component 2 and the clamping component 3, before the pressing block 210 contacts the material, the multiple support blocks 310 on the four clamping blocks 39 can stably clamp the material from four directions to prevent the material from shaking or popping out during operation; through the cooperation of the multiple support blocks 310 and the multiple steel balls 311, the multiple support blocks 310 can fit irregular materials and effectively clamp the irregular materials.

[0041] For further information, see Figure 7 - Fig.10 The protection component 4 is used to protect personnel during hydraulic operation. The protection component 4 is arranged on the operating platform 1. The protection component 4 includes a front guard plate 41, which is slidably installed on the inner wall of the operating platform 1. Two side guard plates 46 are also installed on the inner wall of the operating platform 1. The two side guard plates 46 are respectively located on both sides of the base 31. The two side guard plates 46 protect both sides of the round table 32. The front guard plate 41 is located on the front side of the base 31. Both sides of the front guard plate 41 and one side of the two side guard plates 46 are respectively connected with racks 44. Two gears 45 are rotatably installed at the bottom of the operating platform 1. The gears 45 are located on the base 31. The two racks 44 on the side are meshed with one of the gears 45, and the two racks 44 on the other side of the base 31 are meshed with another gear 45. When the two side guard plates 46 move downward, the two gears 45 are driven to rotate through the two racks 44. When the two gears 45 rotate, the front guard plate 41 is driven to move upward through the two racks 44. After the front guard plate 41 moves upward, the front side of the round table 32 is protected. Two lower pressure plates 47 are connected to the guide plate 24. The two lower pressure plates 47 are in contact with the two side guard plates 46 during the movement. The two lower pressure plates 47 on the guide plate 24 contact the two side guard plates 46, two lower pressure plates 47 push the two side guard plates 46 downward, an observation window 42 is provided on the front guard plate 41, and the staff can observe the material status through the observation window 42. The bottom of the front guard plate 41 is connected to a counterweight block 43. After the operation is completed, the guide plate 24 moves upward, and the front guard plate 41 falls due to the gravity of the counterweight block 43; two rotating shafts 49 are rotatably installed on the operating table 1, and the outer wall of the rotating shaft 49 is installed with a cleaning roller 410. The two ends of the rotating shaft 49 are respectively connected to rubber wheels 411. Two rubber strips 48 are respectively installed on the front and rear sides of the front guard plate 41. The four rubber strips 48 During the movement, the four rubber wheels 411 are in contact with each other respectively. The front and rear sides of the observation window 42 are in contact with the two cleaning rollers 410 respectively during the movement. There is a large friction between the four rubber strips 48 and the four rubber wheels 411, so that the four rubber strips 48 drive the four rubber wheels 411 to rotate through contact during the movement. The four rubber wheels 411 drive the two cleaning rollers 410 to rotate through two rotating shafts 49. The two cleaning rollers 410 clean the observation window 42 by rotating during the movement of the observation window 42 to maintain the cleanliness of the observation window 42. Through the setting of the protection component 4, When the pressing block 210 moves downward, the front guard plate 41 can automatically rise to protect the front side of the material to prevent the material from breaking and splashing and injuring the staff. After the operation is completed, as the pressing block 210 rises, the front guard plate 41 automatically descends without hindering the staff from taking and placing the material. Through the setting of the two cleaning rollers 410, the two cleaning rollers 410 can clean the observation window 42 on the front guard plate 41 by rotating, so as to keep the observation window 42 clean and facilitate the staff to observe the material status.

[0042] Further, see Fig.11 - Fig.13 , a cooling assembly 5 is used to cool the hydraulic assembly 2. The cooling assembly 5 is arranged on the hydraulic assembly 2. The cooling assembly 5 includes a water tank 54. The water tank 54 is installed on the guide plate 24. An air bag 53 is installed on the water tank 54. The outer walls of the two main rods 25 are respectively slidably connected with the lower pressure rods 51. The lower pressure rods 51 are provided with adjustment wires 52. The staff can adjust the height of the lower pressure rod 51 on the main rod 25 by loosening the adjustment wires 52. The air bag 53 contacts one of the lower pressure rods 51 during the movement. The front and rear sides of the guide plate 24 are respectively rotatably installed with rotating blocks 56. The rotating blocks 56 are installed with water pipes 55 and nozzles 57. The two water pipes 55 are connected to the water tank 54. The air bag 53 is provided with a nozzle 57. The nozzle 57 is provided with a nozzle 57. The two water pipes 55 are connected to the water tank 54. After the capsule 53 is squeezed, air is injected into the water tank 54. The water tank 54 uses positive pressure to transport the coolant to the two rotating blocks 56 through two water pipes 55. The two rotating blocks 56 spray the coolant onto the surface of the pressing block 210 from the front and rear sides of the pressing block 210 through two nozzles 57, respectively, to cool the pressing block 210 by water, so as to avoid overheating of the pressing block 210 after long-term use. When hydraulic operation is performed on some easily corrosive materials, anti-corrosion agents can be added to the water tank 54. Spraying the anti-corrosion agents on the pressing block 210 can alleviate the corrosion of the pressing block 210 and extend the service life of the pressing block 210. A rebound block 512 is installed on the guide plate 24 through a spring. The rebound block 512 During the movement, it contacts the other downward pressure rod 51, two No. 3 connecting rods 511 are hinged on the rebound block 512, two slide bars 510 are slidably installed on the guide plate 24, the two slide bars 510 are respectively hinged with the two No. 3 connecting rods 511, a shift fork 59 is installed on the slide bar 510, a shift rod 58 is connected to the rotating block 56, and the two shift forks 59 are respectively in contact with the two shift rods 58. When the guide plate 24 starts to move downward, the rebound block 512 gradually loses contact with the downward pressure rod 51 and rebounds by the elastic force of the spring. After the rebound block 512 rebounds, it drives the two slide bars 510 to move in a direction close to each other through the two No. 3 connecting rods 511. The two slide bars 510 are respectively hinged with the two No. 3 connecting rods 511. A shift fork 59 is installed on the slide bar 510. A shift rod 58 is connected to the rotating block 56. The two shift forks 59 are respectively in contact with the two shift rods 58. The two levers 58 are moved, and the two levers 58 drive the two rotating blocks 56 to rotate respectively, so that the two rotating blocks 56 are higher than the bottom surface of the guide plate 24 after rotation, so as to avoid obstruction to the operation process; through the setting of the cooling component 5, the two nozzles 57 can cool down the pressing block 210 by spraying coolant after the operation of the pressing block 210 is completed, so as to avoid overheating of the pressing block 210 and affect the service life, and reduce the failure rate; through the setting of the two rotating blocks 56, the two rotating blocks 56 can be turned upward during operation to avoid affecting the operation process. After the operation is completed, the two rotating blocks 56 are turned downward, so that the two nozzles 57 are aimed at the pressing block 210 again for water cooling.

[0043] With the above structure, the working principle of this case is that the staff places the material on the round table 32 and starts the hydraulic cylinder 22. The hydraulic cylinder 22 drives the guide plate 24 to move downward through the output end 23, and the guide plate 24 drives the pressing block 210 to move synchronously. When the guide plate 24 moves, it slides along the two main rods 25. The two main rods 25 play a guiding role to prevent the movement trajectory of the guide plate 24 from deviating. During the movement of the guide plate 24, the four secondary guide rods 26 are inserted into the four guide holes on the base 31. The four secondary guide rods 26 play a stabilizing role in the hydraulic process to prevent the pressing block 210 from shaking or deviating when pressing irregular materials. During the sliding process of the guide hole, the slider 26 contacts the first slider 33 and presses the slider 33 downward. When the slider 33 moves downward, the slider 33 drives the second slider 35 to move toward the direction close to the round table 32 through the first connecting rod 34. When the second slider 35 moves, it drives the mounting plate 38 to rotate upward with the support 37 as the center through the second connecting rod 36 by using the lever principle. The mounting plate 38 drives the clamping block 39 to rotate upward through the spring, so that the four clamping blocks 39 approach the material on the round table 32 from four directions respectively. After the multiple support blocks 310 on the four clamping blocks 39 contact the material, they clamp the material stably and keep the material in the center of the round table 32. When an irregular material needs to be clamped, part of the support blocks 310 on the clamping block 39 first contacts the raised part of the material, so that the raised part of the material pushes the support block 310 toward the inside of the clamping block 39. After being pushed, the support block 310 squeezes the multiple steel balls 311, so that the depth of the multiple steel balls 311 contacted by the support block 310 is reduced, and the depth of the multiple steel balls 311 contacted by other support blocks 310 is increased. The squeezed steel balls 311 support other support blocks 310, so that other support blocks 310 can fit the concave surface of the material. The multiple support blocks 310 cooperate with the multiple steel balls 311 to achieve the root According to the effect of adaptively fitting the contact surface of the material, the irregular material can be effectively clamped. The spring between the mounting plate 38 and the clamping block 39 can make the clamping block 39 move to a certain extent, so as to meet the clamping requirements of materials of various specifications. The spring between the second slider 35 and the support 37 plays a reset role. When the material is clamped stably, the pressing block 210 continues to move downward and contacts the material, and performs hydraulic operation on the material. After the operation is completed, the staff closes the hydraulic cylinder 22, and the guide plate 24 moves upward to reset. The four clamping blocks 39 are reset by the spring elastic force between the second slider 35 and the support 37.The four lubrication cylinders 27 are all filled with grease. Since there is a certain gap between the lubrication cylinder 27 and the main rod 25, the scraper ring 28 is in contact with the main rod 25. When the guide plate 24 moves downward, the grease in the two lubrication cylinders 27 at the bottom is applied to the two main rods 25, and the scraper rings 28 of the two lubrication cylinders 27 at the top scrape the grease on the two main rods 25 and transport it to the two lubrication cylinders 27 at the bottom for replenishment through the inner tube 29. When the guide plate 24 moves upward, the same as the above principle, the two lubrication cylinders 27 at the top are applied with grease, and the scraper rings 28 in the two lubrication cylinders 27 at the bottom scrape the grease. The one-way valves of the two inner tubes 29 between the two lubrication cylinders 27 are set in the opposite direction, so that the grease in the two lubrication cylinders 27 circulates and replenishes. Since the guide plate 24 is located between the four lubrication cylinders 27, when the guide plate 24 slides on the two main rods 25, the contact position is always kept with grease for lubrication, and does not contact the guide plate 2 After the scraper ring 28 removes the grease from the position of the main rod 25 in contact with the material, it remains relatively dry to avoid dust contamination; through the cooperation of the hydraulic assembly 2 and the clamping assembly 3, the multiple support blocks 310 on the four clamping blocks 39 can stably clamp the material from four directions before the pressure block 210 contacts the material, thereby preventing the material from shaking or popping out during the operation; through the cooperation of multiple support blocks 310 and multiple steel balls 311, the multiple support blocks 310 can fit irregular materials and effectively clamp the irregular materials; through the cooperation of the four lubricating cylinders 27, the guide plate 24 can be lubricated by grease during the movement, thereby extending the service life of the guide plate 24, and the grease can be applied and recovered according to the movement of the guide plate 24, keeping the part of the main rod 25 exposed to the air relatively dry, avoiding the grease from being contaminated with a lot of dust after long-term use, affecting the lubrication effect, and being inconvenient to clean. ;

[0044] The two side guard plates 46 protect the two sides of the round table 32. When the guide plate 24 moves downward, the two lower pressure plates 47 on the guide plate 24 contact the two side guard plates 46, and the two lower pressure plates 47 push the two side guard plates 46 downward. When the two side guard plates 46 move downward, the two gears 45 are driven to rotate through the two racks 44. When the two gears 45 rotate, the front guard plate 41 is driven to move upward through the two racks 44. After the front guard plate 41 moves upward, it protects the front side of the round table 32. The staff can observe the material status through the observation window 42. After the operation is completed, the guide plate 24 moves upward, and the front guard plate 41 falls down due to the gravity of the counterweight block 43. When the front guard plate 41 is reset downward, the four racks 44 and the gear 45 are used to drive the two side guard plates 46 to reset upward, so that the front guard plate 41 automatically rises during operation without affecting the material placement process. When the front guard plate 41 moves, it drives the four rubber strips 48 to move synchronously, and there is a gap between the four rubber strips 48 and the four rubber wheels 411. There is a large friction force, so that the four rubber strips 48 drive the four rubber wheels 411 to rotate through contact during movement, and the four rubber wheels 411 drive the two cleaning rollers 410 to rotate through two rotating shafts 49. The two cleaning rollers 410 clean the observation window 42 by rotating during the movement of the observation window 42, so as to maintain the cleanliness of the observation window 42 and avoid dust and flying fragments adhering to the observation window 42 after long-term use, thereby affecting the observation effect; through the setting of the protective component 4, when the pressing block 210 moves downward, the front guard plate 41 can automatically rise to protect the front side of the material to prevent the material from breaking and splashing and injuring the staff. After the operation is completed, as the pressing block 210 rises, the front guard plate 41 automatically descends, so as not to hinder the staff from taking and placing the material; through the setting of the two cleaning rollers 410, the two cleaning rollers 410 can clean the observation window 42 on the front guard plate 41 by rotating, so as to maintain the cleanliness of the observation window 42 and facilitate the staff to observe the material status.

[0045] In the process of the guide plate 24 moving upward, the guide plate 24 drives the water tank 54 to move synchronously. The water tank 54 is filled with coolant. When the water tank 54 moves upward, the air bag 53 on the water tank 54 contacts the lower pressing rod 51, so that the air bag 53 is squeezed. After the air bag 53 is squeezed, air is injected into the water tank 54. The water tank 54 uses the positive pressure to transport the coolant to the two rotating blocks 56 through two water pipes 55. The two rotating blocks 56 spray the coolant onto the surface of the pressing block 210 from the front and rear sides of the pressing block 210 through two nozzles 57, respectively, to cool the pressing block 210 by water, so as to avoid overheating of the pressing block 210 after long-term use, accelerate the aging of the pressing block 210, and the pressing block 210 transfers heat to the pressing block 210. After being handed over to the hydraulic cylinder 22 and the output end 23, the hydraulic cylinder 22 may overheat and spray oil. The spraying of oil by the hydraulic cylinder 22 not only affects production, but also poses certain safety hazards. When hydraulic operations are performed on some easily corrosive materials, anti-corrosion agents can be added to the water tank 54. Spraying the anti-corrosion agents on the pressing block 210 can alleviate the corrosion of the pressing block 210 and extend the service life of the pressing block 210. The staff can adjust the height of the lower pressure rod 51 on the main rod 25 by loosening the adjusting wire 52. When the initial height of the guide plate 24 is adjusted, the two main rods 25 are adjusted accordingly to maintain contact with the airbag 53 and the rebound block 512. The main rod 25 can also adjust the airbag by adjusting the height. 53 gas delivery volume, to achieve the adjustment of the amount of water spray; when the guide plate 24 starts to move downward, the rebound block 512 gradually loses contact with the lower pressure rod 51 and rebounds by the spring force, after the rebound block 512 rebounds, it drives the two slide bars 510 to move in the direction close to each other through the two No. 3 connecting rods 511, the two slide bars 510 respectively shift the two shift rods 58 through the two shift forks 59, and the two shift rods 58 respectively drive the two rotating blocks 56 to rotate, so that the two rotating blocks 56 are higher than the bottom surface of the guide plate 24 after rotation, so as to avoid obstruction to the operation process, after the operation is completed, the guide plate 24 drives the rebound block 512 to move upward until the rebound block 512 contacts with the lower pressure rod 51, so that the rebound block 5 12 is squeezed and moves downward, the rebound block 512 drives the two slide bars 510 to move away from each other through the two No. 3 connecting rods 511, and the two slide bars 510 drive the two rotating blocks 56 to reset through the two shift forks 59 and the two shift rods 58, so that the two nozzles 57 are aligned with the pressing block 210, so that the two rotating blocks 56 can be automatically recovered upward during operation and reset downward before spraying the coolant, thereby preventing the protruding rotating blocks 56 from affecting the operation process; through the setting of the cooling component 5, the two nozzles 57 can cool the pressing block 210 by spraying the coolant after the operation of the pressing block 210 is completed, thereby preventing the pressing block 210 from overheating and affecting the service life, and reducing the failure rate;By setting the two rotating blocks 56, the two rotating blocks 56 can be turned upward during operation to avoid affecting the operation process. After the operation is completed, the two rotating blocks 56 turn downward so that the two nozzles 57 are aimed at the pressing block 210 again for water cooling.

[0046] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A hydraulic press with a safety protection device, characterized in that: include: Operation table (1); A hydraulic assembly (2) for performing hydraulic operations; A clamping assembly (3), used for clamping materials; A protection component (4) for protecting personnel during hydraulic operations; A cooling assembly (5) for cooling the hydraulic assembly (2); The hydraulic assembly (2) is arranged on the operating table (1), the clamping assembly (3) is arranged on the operating table (1), the protection assembly (4) is arranged on the operating table (1), and the cooling assembly (5) is arranged on the hydraulic assembly (2); The hydraulic assembly (2) comprises a frame (21), the frame (21) being connected to the rear side of the operating table (1), a hydraulic cylinder (22) being mounted on the frame (21), an output end (23) being provided on the hydraulic cylinder (22), a guide plate (24) being connected to the bottom of the output end (23), a pressure block (210) being mounted on the bottom of the guide plate (24), two main guide rods (25) being mounted between the operating table (1) and the frame (21), the two main guide rods (25) being slidably connected to the inner wall of the guide plate (24), and four secondary guide rods (26) being mounted on the bottom of the guide plate (24); The clamping assembly (3) comprises a base (31), the base (31) being mounted on the operating table (1), a round table (32) being mounted on the base (31), four mounting grooves and four guide holes being provided on the base (31), a first slider (33) being slidably mounted in each of the four guide holes of the base (31), a first connecting rod (34) being hingedly connected to the bottom of the first slider (33), a second slider (35) being hingedly connected to one end of the first connecting rod (34) away from the first slider (33), and the second slider (35) is hingedly connected to a No. 2 connecting rod (36), the operating table (1) is equipped with four supports (37), the four supports (37) are respectively rotatably mounted with mounting plates (38), the four mounting plates (38) are respectively hinged to the four No. 2 connecting rods (36), the mounting plates (38) are respectively connected to the four No. 2 connecting rods (36) by springs, the four clamping blocks (39) are respectively located in four mounting grooves of the base (31), and the four secondary guide rods (26) are respectively in contact with the four No. 1 sliders (33) during movement; Two lubricating cylinders (27) are respectively installed on the top and bottom surfaces of the guide plate (24), and the four lubricating cylinders (27) are divided into two groups. The two groups of lubricating cylinders (27) are respectively slidably connected to the two main rods (25). A scraper ring (28) is installed in the lubricating cylinder (27). An inner tube (29) is connected between the two lubricating cylinders (27) in the same group. A one-way valve is arranged in the inner tube (29). The outer wall of the inner tube (29) is slidably connected to the inner wall of the guide plate (24); The four No. 2 sliders (35) are slidably connected to the operating table (1), and springs are respectively connected between the four No. 2 sliders (35) and the four supports (37); A plurality of support blocks (310) are slidably mounted on the inner wall of the clamping block (39), a plurality of steel balls (311) are arranged inside the clamping block (39), one end of the support block (310) is located outside the clamping block (39), and the other end of the support block (310) is in contact with the plurality of steel balls (311); The protection component (4) comprises a front guard plate (41), the front guard plate (41) being slidably mounted on the inner wall of the operating table (1), the inner wall of the operating table (1) being further mounted with two side guard plates (46), the two side guard plates (46) being respectively located on both sides of the base (31), the front guard plate (41) being located on the front side of the base (31), both sides of the front guard plate (41) and one side of the two side guard plates (46) being respectively connected with racks (44), the bottom of the operating table (1) being rotatably mounted with two gears (45), the two racks (44) located on one side of the base (31) being meshed with one of the gears (45), and the two racks (44) located on the other side of the base (31) being meshed with the other gear (45), the guide plate (24) being connected with two lower pressure plates (47), the two lower pressure plates (47) being respectively in contact with the two side guard plates (46) during movement.

2. A hydraulic press with a safety protection device according to claim 1, characterized in that: An observation window (42) is provided on the front guard plate (41), and a counterweight (43) is connected to the bottom of the front guard plate (41).

3. A hydraulic press with a safety protection device according to claim 2, characterized in that: Two rotating shafts (49) are rotatably mounted on the operating table (1); a cleaning roller (410) is mounted on the outer wall of the rotating shaft (49); both ends of the rotating shaft (49) are respectively connected to rubber wheels (411); two rubber strips (48) are respectively mounted on the front side and the rear side of the front guard plate (41); the four rubber strips (48) are respectively in contact with the four rubber wheels (411) during movement; and the front side and the rear side of the observation window (42) are respectively in contact with the two cleaning rollers (410) during movement.

4. A hydraulic press with a safety protection device according to claim 3, characterized in that: The cooling assembly (5) comprises a water tank (54), wherein the water tank (54) is mounted on the guide plate (24), an air bag (53) is mounted on the water tank (54), the outer walls of the two main rods (25) are respectively slidably connected with a lower pressure rod (51), an adjusting wire (52) is arranged on the lower pressure rod (51), the air bag (53) contacts one of the lower pressure rods (51) during movement, and rotating blocks (56) are respectively rotatably mounted on the front and rear sides of the guide plate (24), a water pipe (55) and a nozzle (57) are mounted on the rotating block (56), and the two water pipes (55) are connected to the water tank (54).

5. A hydraulic press with a safety protection device according to claim 4, characterized in that: A rebound block (512) is installed on the guide plate (24) via a spring. The rebound block (512) contacts another downward pressure rod (51) during movement. Two No. 3 connecting rods (511) are hinged on the rebound block (512). Two sliding rods (510) are slidably installed on the guide plate (24). The two sliding rods (510) are respectively hinged to the two No. 3 connecting rods (511). A shift fork (59) is installed on the sliding rod (510). A shift rod (58) is connected to the rotating block (56). The two shift forks (59) are respectively in contact with the two shift rods (58).

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