Three-cylinder hydraulic press with guide frame

Abstract

The utility model discloses a three cylinder hydraulic machine with guide frame, including frame and sliding block, the frame is equipped with four interval arrangement's guide rail, the guide rail vertical setting, the sliding block is located between four guide rails, the sliding block is located in the adapter end and is equipped with the two wall surface of guide structure and guide rail and is attached, the guide structure includes the carrier seat, the first adjustment area and the second adjustment area of being equipped with the adjacent two sides of carrier seat, the first adjustment area and the second adjustment area structure are same and are equipped with four groups respectively, including adjustablely being equipped with the guide plate of carrier seat and the adjustment pad plate of detachable installation in the guide plate, the guide plate adjustable adjustment pad plate and the attached interval between guide rail wall surface, the top wall middle part of frame is equipped with the quick cylinder of double outlet rod piston type, the driving end of quick cylinder is connected with the middle part of sliding block top wall, the both sides of quick cylinder are equipped with the pressure cylinder, and the driving end of pressure cylinder is connected with the both sides of sliding block upper wall.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic equipment, and in particular to a three-cylinder hydraulic press with a guide frame. Background Technology

[0002] A hydraulic press is a machine that uses liquid as its working medium and is designed based on Pascal's principle to transfer energy to achieve various processes. A hydraulic press generally consists of three parts: the main machine (host), the power system, and the hydraulic control system. Hydraulic presses can be classified into valve hydraulic presses, liquid hydraulic presses, and engineering hydraulic presses.

[0003] The machining and precision adjustment of the existing old-style hydraulic press are quite complex, and the precision adjustment takes a long time.

[0004] The traditional three-cylinder structure consists of two pressure cylinders on both sides and a return cylinder in the middle. The fast downward drive relies on the weight of the slider to move downwards. The maximum speed of downward movement by weight depends on the stroke of the hydraulic cylinder, which has limitations.

[0005] The existing guide rail structure can be referenced in Chinese Patent 202421213341.2. Utility Model Content

[0006] The main purpose of this invention is to propose a three-cylinder hydraulic press with a guide frame, which aims to improve the existing structure, facilitate the cooperation between the guide rail and the slider, and arrange two pressure cylinders on the left and right, and a double-rod piston-type fast cylinder in the middle. The double-rod design structure allows for adjustment of both the fast descent and return speeds, making it suitable for short-stroke scenarios and more widely applicable.

[0007] To achieve the above objectives, this utility model proposes a three-cylinder hydraulic press with a guide frame, comprising:

[0008] The frame is provided with four spaced guide rails, which are vertically arranged.

[0009] A slider is provided between four guide rails, and the slider at the transition end is provided with a guide structure that fits against the two walls of the guide rails;

[0010] The guide structure includes a carrier, a first adjustment surface and a second adjustment surface located on adjacent sides of the carrier.

[0011] The first and second adjustment surfaces have the same structure and are each provided with four sets, including an adjustable guide plate mounted on the base and an adjustment pad that can be detachably installed on the guide plate.

[0012] The guide plate can adjust the contact distance between the pad and the guide rail wall;

[0013] The top wall of the frame is equipped with a double-rod piston type rapid cylinder, and the driving end of the rapid cylinder is connected to the middle of the top wall of the slider.

[0014] The fast cylinder is equipped with pressure cylinders on both sides, and the driving end of the pressure cylinder is connected to both sides of the upper wall of the slider.

[0015] The advantages of this application are:

[0016] 1. The dual-rod design allows for adjustable descent and return speeds, making it suitable for short-stroke scenarios and more widely applicable. The fast cylinder is installed in the center of the slider, and the slider's descent can be driven by oil supply from the upper chamber of the fast cylinder. The descent speed is adjustable and controllable, and the dual-rod structure facilitates inspection and maintenance.

[0017] 2. An eight-sided guide structure is adopted to achieve stable sliding of the slider, while the guide rail is fixed and the adjustment shims are adjustable.

[0018] The assembly process is simple, and the precision adjustment steps are reduced, which improves the overall production efficiency of the equipment.

[0019] Compared with existing designs, it mainly includes a base, a guide plate, and an adjustment pad, making its structure simpler. Attached Figure Description

[0020] Figure 1 This is a three-dimensional illustration of the present utility model. Figure 1

[0021] Figure 2 This is a cross-sectional view of the present utility model. Figure 1 ;

[0022] Figure 3 This is a cross-sectional view of the present utility model. Figure 2 ;

[0023] Figure 4 This is a cross-sectional view of the present utility model. Figure 3 ;

[0024] Figure 5 This is a three-dimensional illustration of the present utility model. Figure 2 ;

[0025] Figure 6 This is a three-dimensional illustration of the present utility model. Figure 3 .

[0026] In the picture,

[0027] 1 is the frame, 10 is the stand, 11 is the base frame, and 12 is the top frame.

[0028] 2 represents the guide rail.

[0029] 3 is the guide structure, 30 is the carrier, 31 is the guide plate, and 32 is the adjustment pad.

[0030] 4 represents the first screw, 41 represents the first threaded hole, and 42 represents the second threaded hole.

[0031] 5 is the second screw, 50 is the third threaded hole, and 51 is the lock nut.

[0032] 6 is the third screw, and 61 is the guide post.

[0033] 7 is the oil passage, and 70 is the oil filling hole.

[0034] 81 is the first adjustment surface, and 82 is the second adjustment surface. Detailed Implementation

[0035] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0036] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0037] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0038] like Figures 1 to 5 As shown, a three-cylinder hydraulic press with a guide frame includes:

[0039] The frame 1 is provided with four spaced guide rails 2, which are vertically arranged.

[0040] A slider is disposed between four guide rails 2, and the slider at the transition end is provided with a guide structure 3 that fits against the two walls of the guide rails 2.

[0041] The guide structure 3 includes a carrier 30, a first adjustment surface and a second adjustment surface disposed on adjacent sides of the carrier 30.

[0042] The first and second adjustment surfaces have the same structure and are each provided with four sets, including an adjustable guide plate 31 disposed on the carrier 30 and an adjustment pad 32 detachably installed on the guide plate 31.

[0043] The guide plate 31 can adjust the contact distance between the pad 32 and the wall of the guide rail 2;

[0044] The top wall of the frame 1 is provided with a double-rod piston type quick cylinder 92, and the driving end of the quick cylinder is connected to the middle of the top wall of the slider.

[0045] The fast cylinder is provided with pressure cylinders 91 on both sides, and the driving end of the pressure cylinder is connected to both sides of the upper wall of the slider.

[0046] The advantages of this application are:

[0047] 1. The dual-rod design allows for adjustable descent and return speeds, making it suitable for short-stroke scenarios and more widely applicable. The fast cylinder is installed in the center of the slider, and the slider's descent can be driven by oil supply from the upper chamber of the fast cylinder. The descent speed is adjustable and controllable, and the dual-rod structure facilitates inspection and maintenance.

[0048] 2. An eight-sided guide structure 3 is adopted to achieve stable sliding of the slider. At the same time, the guide rail 2 is fixed and the adjustment shims can be adjusted.

[0049] The assembly process is simple, and the precision adjustment steps are reduced, which improves the overall production efficiency of the equipment.

[0050] Compared with existing designs, it mainly includes a carrier 30, a guide plate 31, and an adjustment pad 32, making its structure simpler.

[0051] Specifically, the frame 1 includes two uprights 10 spaced apart, and a base frame and a top frame disposed between the two uprights 10;

[0052] The guide rail 2 is located on the outer wall surface on both sides of the stand 10, and the guide structure 3 is exposed on the outer wall of the frame 1, which facilitates installation. At the same time, the guide structure is exposed on the outer wall of the frame 1, which facilitates adjustment and installation.

[0053] In this embodiment of the invention, the cross-section of the carrier 30 is bent, thereby installing two adjustment surfaces while ensuring the structural strength of the installation.

[0054] Specifically, the carrier 30 is provided with a first threaded hole.

[0055] The guide plate 31 is provided with a second threaded hole that mates with the first threaded hole.

[0056] The first screw 4 passes through the first threaded hole and is screwed into the second threaded hole. It adopts a double threaded hole structure. When the first screw 4 is rotated in the opposite direction, the guide plate 31 moves away from the carrier 30, thereby adjusting the contact distance between the pad and the guide rail 2.

[0057] In this embodiment of the utility model, the carrier 30 is provided with a third threaded hole, and a second screw 5 is screwed into the third threaded hole. The end of the second screw 5 abuts against the wall surface of the guide plate 31 away from the adjusting pad. A locking nut is provided at the end of the second screw 5 away from the carrier 30. When there is a predetermined gap between the carrier 30 and the guide plate 31, the load on the guide plate 31 also decreases. Therefore, the positioning and fixing of the guide plate 31 is achieved by the abutment of the second screw 5.

[0058] Therefore, when the first screw 4 adjusts the guide plate 31 to the predetermined position, the second screw 5 abuts against the guide plate 31 and is locked by the locking nut, thereby achieving the adjustment of precision.

[0059] Specifically, the front wall of the guide plate 31 is provided with a matrix of guide posts, which cooperate with the adjusting pad 32.

[0060] The guide plate 31 is provided with a through hole, and the adjusting pad 32 is provided with a fourth threaded hole that matches the through hole. A third screw 6 passes through the through hole and is screwed into the fourth threaded hole.

[0061] In this embodiment of the utility model, the front wall of the adjusting pad 32 is provided with an oil passage 7.

[0062] Specifically, the oil passage extends in a "Z" shape, and the top wall of the adjusting pad 32 is provided with an oil injection hole. A horizontal channel is provided between the oil injection hole and the top of the oil passage, which facilitates the injection of lubricant. Compared with the existing gap injection, it can wet the entire wall surface between the guide rail 2 and the guide structure 3, thus improving the lubrication effect.

[0063] In this embodiment of the utility model, the included angle between the first adjustment surface 81 and the second adjustment surface 82 is 90 degrees, and they are respectively attached to the two adjacent outer surfaces of the guide rail 2, that is, an exposed structure. Compared with the existing chamfered groove structure, the structure has stronger support.

[0064] Specifically, the adjusting pad 32 is a graphite copper plate, which has a lower coefficient of friction, thereby reducing sliding resistance and improving sliding accuracy.

[0065] The slider is a long rectangular frame structure that is welded as a whole.

[0066] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A three-cylinder hydraulic press with a guide frame, characterized in that, include: The frame is provided with four spaced guide rails, which are vertically arranged. A slider is provided between four guide rails, and the slider at the transition end is provided with a guide structure that fits against the two walls of the guide rails; The guide structure includes a carrier, a first adjustment surface and a second adjustment surface located on adjacent sides of the carrier. The first and second adjustment surfaces have the same structure and are each provided with four sets, including an adjustable guide plate mounted on the base and an adjustment pad that can be detachably installed on the guide plate. The guide plate can adjust the contact distance between the pad and the guide rail wall; The top wall of the frame is equipped with a double-rod piston type rapid cylinder, and the driving end of the rapid cylinder is connected to the middle of the top wall of the slider. The fast cylinder is equipped with pressure cylinders on both sides, and the driving end of the pressure cylinder is connected to both sides of the upper wall of the slider.

2. The three-cylinder hydraulic press with a guide frame as described in claim 1, characterized in that: The frame includes two uprights spaced apart, and a base frame and a top frame located between the two uprights; The guide rails are located on the outer walls of both sides of the stand, and the guide structure is exposed on the outer wall of the frame.

3. The three-cylinder hydraulic press with a guide frame as described in claim 1, characterized in that: The cross-section of the carrier is bent.

4. The three-cylinder hydraulic press with a guide frame as described in claim 3, characterized in that: The carrier is provided with a first threaded hole. The guide plate is provided with a second threaded hole that mates with the first threaded hole. A first screw passes through a first threaded hole and is then screwed into a second threaded hole.

5. The three-cylinder hydraulic press with a guide frame as described in claim 1, characterized in that: The carrier is provided with a third threaded hole, and a second screw is screwed into the third threaded hole. The end of the second screw abuts against the wall of the guide plate away from the adjusting pad. A locking nut is provided at the end of the second screw away from the carrier.

6. The three-cylinder hydraulic press with a guide frame as described in claim 1, characterized in that: The front wall of the guide plate is provided with guide posts arranged in a matrix, and the guide posts cooperate with the adjusting pad. The guide plate is provided with a through hole, and the adjusting pad is provided with a fourth threaded hole that matches the through hole. A third screw passes through the through hole and is screwed into the fourth threaded hole.

7. The three-cylinder hydraulic press with a guide frame as described in claim 1, characterized in that: The front wall of the adjusting pad is provided with an oil passage.

8. The three-cylinder hydraulic press with a guide frame as described in claim 7, characterized in that: The oil passage extends in a "Z" shape, and the top wall of the adjusting pad is provided with an oil injection hole. A horizontal channel is provided between the oil injection hole and the top of the oil passage.

9. The three-cylinder hydraulic press with a guide frame as described in claim 1, characterized in that: The included angle between the first adjustment surface and the second adjustment surface is 90 degrees, and they are respectively attached to the two adjacent outer surfaces of the guide rail.

10. The three-cylinder hydraulic press with a guide frame as described in claim 1, characterized in that: The adjusting pad is a graphite copper plate.

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