Stroke-adjustable limiter based on pressing machine
By designing an adjustable stroke limiter in the press, comprehensive lubrication between the connecting ring and the column and the adjustability of the limit module are achieved, solving the wear problem, improving the service life and processing accuracy of the equipment, and ensuring safety.
Patent Information
- Application Number
- CN202422897442.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-11-27
AI Technical Summary
During use, friction between the connecting ring and the column of the existing press causes wear, affecting processing accuracy and equipment lifespan, and also poses safety hazards.
An adjustable stroke limiter based on a press was designed. The lubrication system delivers lubricating oil to the friction point. Combined with the adjustable limit module, it ensures full lubrication between the connecting ring and the column, and the stroke of the limiter can be adjusted according to the workpiece size.
It effectively reduces friction and wear, extends equipment life, improves processing accuracy and safety, and adapts to the processing requirements of different workpieces.
Smart Images
Figure CN223720255U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the press technical field especially based on adjustable stroke's stopper for press. BACKGROUND
[0002] A press is a mechanical device that uses pressure to process, form, or test materials and products. In the fields of industrial manufacturing, metalworking, plastic molding, etc., presses are indispensable important equipment. They can be divided into mechanical presses, hydraulic presses, and pneumatic presses according to the way pressure is applied. Mechanical presses usually rely on mechanical connections and gear systems to generate pressure, while hydraulic presses use hydraulic oil to transfer pressure, and pneumatic presses use compressed air. The application range of presses is wide, from traditional metal stamping, forging operations to modern composite material molding, electronic component pressing, etc. A stopper is a device used to control the travel of mechanical movements, its main function is to ensure that the moving parts of the machine do not exceed their designed working range, thereby protecting the machine itself and the safety of the operator. Stopper can be based on a variety of working principles, such as mechanical, electronic, magnetic, etc., but their common goal is to detect and limit the position of the moving parts. In the press, the stopper is particularly important because it can prevent the press head from over-pressing and damaging the workpiece or causing equipment overload. By setting the stopper, the travel distance of the press plate can be accurately controlled to ensure the precision and repeatability of the pressing process, while avoiding accidents that may be caused by improper operation.
[0003] In the daily operation process of the press, the interaction between the press plate, the connecting ring and the column is crucial. The press plate usually slides along the outside of the column through the connecting ring to achieve precise pressing of the workpiece. When the press plate moves up and down frequently on the column, especially under high load or high speed operating conditions, the contact surface between the two will inevitably generate friction, which not only generates heat, but also causes the material of the contact surface to gradually wear. With the passage of time, without timely and effective lubrication measures, these friction hot spots can quickly evolve into serious wear points. Wear will make the originally smooth metal surface rough, increasing the risk of sticking and further wear. Over time, this wear will damage the accuracy of the machine, leading to a decline in the quality of the processed products, and may even cause more serious mechanical failures. More seriously, if the gap between the column and the connecting ring becomes larger due to wear, the press plate may shift or deviate from the predetermined path during movement, which will reduce the processing accuracy and may pose a threat to the safety of the operator. In addition, as these components can no longer work effectively together, the overall service life of the press will also be significantly shortened. Therefore, in view of the above shortcomings, a stopper based on adjustable stroke for press is proposed to solve the above problems. SUMMARY
[0004] In order to make up for the above shortcomings, the utility model provides adjustable stroke's stopper based on press, aims at improving the problem that part of press in prior art cannot realize comprehensive and effective lubrication between connecting ring and stand in use.
[0005] In order to realize the above object, the utility model adopts the following technical scheme:
[0006] Adjustable stroke's stopper based on press, including workbench, the top of workbench is fixedly connected with a plurality of stands, the top of a plurality of stands is fixedly connected with the top plate, the top of top plate is provided with the drive assembly for providing power, the bottom of drive assembly is fixedly connected with the pressing plate, the inside of pressing plate is fixedly connected with a plurality of connecting rings, the top of a plurality of connecting rings is fixedly connected with a plurality of oil guide rings, the top of a plurality of oil guide rings is provided with oil guide groove, the top of a plurality of oil guide rings is provided with flow groove, the inside of a plurality of oil guide rings is provided with a plurality of flow-through grooves, the inside of a plurality of connecting rings is provided with a plurality of annular grooves, the bottom of top plate is fixedly connected with a plurality of oil storage rings, the outside of a plurality of oil storage rings is fixedly connected with oil inlet pipe, the bottom of a plurality of oil storage rings is fixedly connected with a plurality of oil outlet pipes, the outside of a plurality of oil outlet pipes is fixedly connected with check valve, the bottom of a plurality of oil storage rings is fixedly connected with compression plate;
[0007] As further description of the above technical scheme:
[0008] The drive assembly includes hydraulic cylinder, the bottom of hydraulic cylinder is installed at the top of top plate, the output end of hydraulic cylinder is fixedly connected with push rod;
[0009] As further description of the above technical scheme:
[0010] The inside rear side of top plate is installed double-head motor, the output end of double-head motor is fixedly connected with rotating shaft, the left and right sides of rotating shaft are fixedly connected with connecting rod, the bottom of two connecting rods is fixedly connected with fixed shaft, the bottom of two fixed shafts is rotatably connected with rotating rod, the bottom of two rotating rods is rotatably connected with rotating frame, the bottom of two rotating frames is fixedly connected with sliding ring, the inside of sliding ring is fixedly connected with two connecting blocks, the adjacent side of two connecting blocks is fixedly connected with limit module, the top left and right sides of workbench are fixedly connected with guide plate;
[0011] As further description of the above technical scheme:
[0012] The top of sliding ring is fixedly connected with a plurality of sleeves, the inside of a plurality of sleeves is slidably connected with limit plate, the top of a plurality of limit plates is fixedly connected with sliding rod;
[0013] As a further description of the above technical solutions:
[0014] The inner part of the connecting ring is slidably connected to the outer part of the stand, and the top of the oil guide ring is in contact with the bottom of the pressing plate.
[0015] As a further description of the above technical solutions:
[0016] The inner part of the flow-through groove is in communication with the inner part of the annular groove, and the top of the limiting module is in contact with the bottom of the pressing plate.
[0017] As a further description of the above technical solutions:
[0018] The inner part of the pressing plate is slidably connected to the outer part of the push rod, and the outer part of the one-way valve is fixedly connected to the inner part of the pressing plate.
[0019] As a further description of the above technical solutions:
[0020] The inner part of the connecting block is slidably connected to the inner part of the guide plate, and the top of the sliding rod is fixedly connected to the bottom of the top plate.
[0021] The utility model has the following beneficial effects:
[0022] 1、The utility model discloses a lubricating system formed by the oil storage ring, the oil inlet pipe, the oil outlet pipe and the one-way valve fixedly connected to the bottom of the top plate, which can effectively deliver lubricating oil to the parts needing lubrication. When the pressing plate moves downward, the pressing plate will be pressed, forcing the lubricating oil in the oil storage ring to flow to the lubricating point through the oil outlet pipe and the one-way valve. The guide groove, the flow groove, the flow-through groove and the annular groove are in communication with each other, forming a complete lubricating oil flow path. This ensures that the connecting ring and the stand are comprehensively lubricated, reducing friction and wear, thereby prolonging the service life of the entire press.
[0023] 2、When it is necessary to adjust the position of the limiting module, the double-head motor is started, and through a series of rotating and sliding actions, the height of the limiting module can be accurately changed. The operator can flexibly adjust the stroke of the limiter according to different workpiece sizes and processing requirements to adapt to different working conditions. This not only improves the applicability of the equipment, but also expands the protection range of the workpiece, ensuring that the workpiece will not be damaged due to excessive pressure during the pressing process. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 The utility model provides a three-dimensional view of the adjustable stroke limiter for the press;
[0025] Figure 2 The utility model provides a connecting rod structure schematic view of the adjustable stroke limiter for the press;
[0026] Figure 3 The connecting ring structure schematic view of the position limiter with adjustable stroke based on a press machine is provided in the utility model;
[0027] Figure 4 The oil guide ring structure schematic view of the position limiter with adjustable stroke based on a press machine is provided in the utility model;
[0028] Figure 5 The top plate structure schematic view of the position limiter with adjustable stroke based on a press machine is provided in the utility model.
[0029] Legend:
[0030] 1, workbench; 2, stand; 3, top plate; 4, hydraulic cylinder; 5, push rod; 6, pressing plate; 7, oil guide ring; 8, connecting ring; 9, oil guide groove; 10, flow groove; 11, flow-through groove; 12, annular groove; 13, oil storage ring; 14, oil inlet pipe; 15, oil outlet pipe; 16, one-way valve; 17, pressing plate; 18, double-head motor; 19, rotating shaft; 20, connecting rod; 21, fixed shaft; 22, rotating rod; 23, rotating frame; 24, sliding ring; 25, connecting block; 26, limit module; 27, guide plate; 28, sleeve; 29, limit plate; 30, sliding rod. DETAILED DESCRIPTION
[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0032] With reference to Figures 1 to 3 An embodiment provided by the utility model: the position limiter with adjustable stroke based on a press machine, including workbench 1, workbench 1 is used for stably placing workpieces. The top of workbench 1 is fixedly connected with a plurality of stands 2, and the stand 2 provides necessary rigidity and stability. The top of the plurality of stands 2 is fixedly connected with a top plate 3, and the top of the top plate 3 is provided with a driving assembly for providing power, and the top plate 3 is used for fixing and supporting the driving assembly. The driving assembly includes a hydraulic cylinder 4, and the hydraulic cylinder 4 is the power source of the press machine and is responsible for converting fluid power into mechanical movement to push the push rod 5 and the pressing plate 6. The bottom of the hydraulic cylinder 4 is installed on the top of the top plate 3, the output end of the hydraulic cylinder 4 is fixedly connected with the push rod 5, and the push rod 5 is a shaft designed to transmit power and movement from the hydraulic cylinder 4 to the pressing plate 6.
[0033] With reference to Figures 2 to 4The bottom of the driving assembly is fixedly connected with a pressing plate 6, which directly contacts the workpiece for pressing. The inside of the pressing plate 6 is fixedly connected with a plurality of connecting rings 8, the inside of the connecting ring 8 is slidingly connected to the outside of the stand column 2, the top of the plurality of connecting rings 8 is fixedly connected with an oil guide ring 7, the main function of the oil guide ring 7 is to collect and guide lubricating oil. The top of the plurality of oil guide rings 7 is provided with an oil guide groove 9, the top of the plurality of oil guide rings 7 is provided with a flow groove 10, the inside of the plurality of oil guide rings 7 is provided with a plurality of flow-through grooves 11, the inside of the plurality of connecting rings 8 is provided with a plurality of annular grooves 12, the inside of the flow-through grooves 11 is communicated with the inside of the annular grooves 12, the oil guide groove 9, the flow groove 10, the flow-through groove 11 and the annular groove 12 are respectively arranged on the oil guide ring 7 and the connecting ring 8, forming a lubricating oil flow path. They are communicated with each other, and the lubricating oil in the oil storage ring 13 is transported to each lubrication point through the oil inlet pipe 14.
[0034] Referring to Figures 3 to 5 The bottom of the top plate 3 is fixedly connected with a plurality of oil storage rings 13, which are used to store a certain amount of lubricating oil. The outside of the plurality of oil storage rings 13 is fixedly connected with an oil inlet pipe 14, the bottom of the plurality of oil storage rings 13 is fixedly connected with a plurality of oil outlet pipes 15, the oil inlet pipe 14 and the oil outlet pipe 15 are pipelines connected to the oil storage ring 13, which are used to deliver and discharge lubricating oil to the lubricating system. The outside of the plurality of oil outlet pipes 15 is fixedly connected with a one-way valve 16, which is used to prevent the reverse flow of lubricating oil. It ensures that the lubricating oil can only flow from the oil storage ring 13 to the lubrication point, but not in the opposite direction. The bottom of the plurality of oil storage rings 13 is fixedly connected with a compression plate 17, when the push rod 5 drives the pressing plate 6 to move downward, the compression plate 17 will be in contact with it and be pressed. Thus for extruding the oil storage ring 13, forcing the lubricating oil therein to flow to the lubrication point through the oil outlet pipe 15 and the one-way valve 16. The top of the oil guide ring 7 is in contact with the bottom of the compression plate 17, the outside of the one-way valve 16 is fixedly connected to the inside of the compression plate 17, and the inside of the compression plate 17 is slidingly connected to the outside of the push rod 5.
[0035] Referring to Figures 3 to 5The inner rear side of the top plate 3 is provided with a double-head motor 18, the output end of the double-head motor 18 is fixedly connected with a rotating shaft 19, and the double-head motor 18 is used for driving the rotating shaft 19. The left and right sides of the rotating shaft 19 are fixedly connected with connecting rods 20, the bottoms of the two connecting rods 20 are fixedly connected with fixed shafts 21, the bottoms of the two fixed shafts 21 are rotatably connected with rotating rods 22, the bottoms of the two rotating rods 22 are rotatably connected with rotating frames 23, the bottoms of the two rotating frames 23 are fixedly connected with sliding rings 24, the inside of the sliding ring 24 is fixedly connected with two connecting blocks 25, the adjacent sides of the two connecting blocks 25 are fixedly connected with limiting modules 26, and the rotary motion of the double-head motor 18 is converted into the up-down linear motion of the limiting module 26. The rotating shaft 19 is driven by the double-head motor 18, is connected with the rotating rod 22 through the connecting rod 20 and the fixed shaft 21, and the rotating rod 22 further drives the rotating frame 23 and the sliding ring 24 to make circular motion. The connecting block 25 transmits the motion of the sliding ring 24 to the limiting module 26, so that the position of the limiting module 26 is accurately adjusted. The top of the limiting module 26 is in contact with the bottom of the pressing plate 6, the top of the workbench 1 is fixedly connected with guide plates 27 on the left and right sides, and the guide plates 27 ensure that the connecting block 25 and the limiting module 26 can stably move up and down and are not affected by the horizontal force. The inside of the connecting block 25 is slidably connected in the inside of the guide plate 27.
[0036] With reference to Figure 1 and Figure 5 The top of the sliding ring 24 is fixedly connected with a plurality of sleeves 28, the inside of the plurality of sleeves 28 is slidably connected with limiting plates 29, the top of the plurality of limiting plates 29 is fixedly connected with sliding rods 30, the top of the sliding rod 30 is fixedly connected at the bottom of the top plate 3, the limiting plate 29 slidably arranged in the sleeve 28 can be adjusted up and down to set the limit position of the limiting module 26. The sliding rod 30 transmits the adjustment to the bottom of the top plate 3, and ensures the stability and adjustability of the setting.
[0037] Working principle: in the process of using the press, the workpiece can be placed on the top of the workbench 1, then the hydraulic cylinder 4 can be started to drive the push rod 5 and the pressing plate 6 to displace, so that the pressing plate 6 can be displaced downward to realize the down action, and the protection of the workpiece can be realized by the limiting module 26 to prevent the workpiece from being damaged under stress, when it is necessary to adjust the position of the limiting module 26, the double-head motor 18 can be started to drive the rotating shaft 19 to rotate, so that the connecting rod 20 can make circular motion around the rotating shaft 19, at this time, the fixed shaft 21 will make circular motion around the rotating shaft 19 and drive the rotating rod 22 to rotate, with the rotation of the rotating rod 22 and the rotating frame 23, the sliding ring 24 and the connecting block 25 can slide in the guide plate 27, the limiting module 26 can be displaced upward, at this time, the position of the limiting module 26 can be adjusted to realize the adjustment of the stroke of the limiting module 26, the push rod 5 and the pressing plate 6 can be displaced by the hydraulic cylinder 4, at this time, the oil guide ring 7 can be moved to the top side, the compression plate 17 can be extruded, so that the compression plate 17 can slide outside the stand column 2 and make the oil storage ring 13 be pressed, at this time, the lubricating oil in the oil storage ring 13 can be extruded through the oil outlet pipe 15 and flow into the oil guide ring 7 by the one-way valve 16, at this time, the lubricating oil can enter the inside of the oil guide groove 9, flow along the flow groove 10 to the inside of the flow-through groove 11, finally, the lubricating oil can be coated on the outside of the stand column 2 through the communication of the flow-through groove 11 and the annular groove 12, so that the lubrication between the connecting ring 8 and the stand column 2 can be realized, thereby the service life of the press can be greatly improved.
[0038] Finally, it should be pointed out that: the above only for preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.
Claims
1. Adjustable stroke stop for presses, comprising a table (1), characterized in that: The top of the workbench (1) is fixedly connected with a plurality of columns (2), the top of a plurality of the columns (2) is fixedly connected with a top plate (3), the top of the top plate (3) is provided with a driving assembly for providing power, the bottom of the driving assembly is fixedly connected with a pressing plate (6), the inside of the pressing plate (6) is fixedly connected with a plurality of connecting rings (8), the top of a plurality of the connecting rings (8) is fixedly connected with an oil guide ring (7), the top of a plurality of the oil guide ring (7) is provided with an oil guide groove (9), the top of a plurality of the oil guide ring (7) is provided with a flow groove (10), the inside of a plurality of the oil guide ring (7) is provided with a plurality of flow-through grooves (11), the inside of a plurality of the connecting ring (8) is provided with a plurality of annular grooves (12), the bottom of the top plate (3) is fixedly connected with a plurality of oil storage rings (13), the outside of a plurality of the oil storage ring (13) is fixedly connected with an oil inlet pipe (14), the bottom of a plurality of the oil storage ring (13) is fixedly connected with a plurality of oil outlet pipes (15), the outside of a plurality of the oil outlet pipe (15) is fixedly connected with a one-way valve (16), the bottom of a plurality of the oil storage ring (13) is fixedly connected with a compression plate (17).
2. The adjustable stroke stop for a press as set forth in claim 1, wherein: The driving assembly comprises a hydraulic cylinder (4), the bottom of the hydraulic cylinder (4) is mounted on the top of the top plate (3), and the output end of the hydraulic cylinder (4) is fixedly connected with a push rod (5).
3. The adjustable stroke stop for a press as set forth in claim 1, wherein: The inside rear side of the top plate (3) is mounted with a double-head motor (18), the output end of the double-head motor (18) is fixedly connected with a rotating shaft (19), the left and right sides of the rotating shaft (19) are fixedly connected with a connecting rod (20), the bottom of the two connecting rods (20) is fixedly connected with a fixed shaft (21), the bottom of the two fixed shafts (21) is rotatably connected with a rotating rod (22), the bottom of the two rotating rods (22) is rotatably connected with a rotating frame (23), the bottom of the two rotating frames (23) is fixedly connected with a sliding ring (24), the inside of the sliding ring (24) is fixedly connected with two connecting blocks (25), the adjacent side of the two connecting blocks (25) is fixedly connected with a limiting module (26), and the top left and right sides of the workbench (1) are fixedly connected with a guide plate (27).
4. The adjustable stroke stop for a press as set forth in claim 3, wherein: The top of the sliding ring (24) is fixedly connected with a plurality of sleeves (28), the inside of a plurality of the sleeves (28) is slidably connected with a limiting plate (29), and the top of a plurality of the limiting plate (29) is fixedly connected with a sliding rod (30).
5. The adjustable stroke stop for a press of claim 1 wherein: The inside of the connecting ring (8) is slidably connected outside the column (2), and the top of the oil guide ring (7) is in contact with the bottom of the compression plate (17).
6. The adjustable stroke stop for a press as set forth in claim 3, wherein: The inside of the flow-through groove (11) is in communication with the inside of the annular groove (12), and the top of the limiting module (26) is in contact with the bottom of the pressing plate (6).
7. The adjustable stroke stop for a press as set forth in claim 2, wherein: The inside of the compression plate (17) is slidably connected outside the push rod (5), and the outside of the one-way valve (16) is fixedly connected inside the compression plate (17).
8. The adjustable stroke stop for a press as set forth in claim 4, wherein: The inside of the connecting block (25) is slidably connected to the inside of the guide plate (27), and the top of the sliding rod (30) is fixedly connected to the bottom of the top plate (3).