Stroke adjustable mechanism of press machine

Abstract

The utility model discloses a stroke adjustable mechanism of a press machine, which relates to the technical field of numerical control press machines and comprises a mounting frame and a machining table height adjusting device. Four sliding rods are slidably connected to the interior of the mounting frame, moving plates are fixedly connected to the lower ends of the two sliding rods on the left side and the lower ends of the two sliding rods on the right side, and the two moving plates are slidably connected to the interior of the mounting frame; the machining table height adjusting device comprises two protruding blocks, two sliding sleeves, two telescopic sliding rods, two rotating rollers, two gears, a hydraulic elevator and a toothed plate, the two protruding blocks are fixedly connected to the surfaces of the two moving plates correspondingly, the two sliding sleeves are rotationally connected to the interiors of the two protruding blocks correspondingly, and a worker can adjust the height of the machining table by adjusting the height of the machining table; and the upper die pressing plate can still machine the workpiece, so that the application range of the press machine is enlarged, and the press machine can adapt to workpieces of different specifications and sizes.

Description

Technical Field

[0001] This utility model relates to the field of CNC press technology, and in particular to an adjustable stroke mechanism for a press. Background Technology

[0002] A press is a sophisticated and versatile machine that can be widely used in processes such as cutting, punching, blanking, bending, riveting, and forming. Presses are divided into three main categories: screw presses, crank presses, and hydraulic presses. All of them are equipped with a forging ejection device at the bottom. The use of a press requires the development of targeted and feasible safe operating procedures based on the different types of presses and processing requirements, as well as the implementation of necessary job training and safety education.

[0003] The currently published patent, CN214448810U, discloses a hydraulic mechanism for a servo CNC press that facilitates adjustment of the support area. The hydraulic mechanism features a first pressure plate with a second pressure plate at its bottom. The bottom area of ​​the first pressure plate is larger than that of the second pressure plate. The first and second pressure plates are connected together via a mounting groove, a mounting block, a connecting block, and a fixing bolt. During use, the second pressure plate can be removed simply by disassembling the fixing bolt. This allows for adjustment of the support area of ​​the pressure rod according to usage requirements.

[0004] Based on the above search results, it was found that the hydraulic mechanism can adjust the support area of ​​the pressure rod according to the usage requirements. However, the pressure plate on the hydraulic press is fixedly mounted on the upper hydraulic press, and the operator cannot adjust the installation height of the pressure plate as needed. Since the movement distance of the upper die plate on the press is limited, it is only suitable for workpieces of a specified size. When the size of the workpiece is smaller than the maximum movement value of the pressure plate, the operator cannot process the workpiece. This results in a small range of application for the press, making it unable to adapt to workpieces of different sizes and affecting the convenience of the operator in processing workpieces of different sizes. Utility Model Content

[0005] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a stroke adjustable mechanism for a press, which can solve the problem that when the size of the workpiece is smaller than the maximum movement value of the pressure plate, the operator cannot process the workpiece, thus making the applicable range of the press small and unable to adapt to workpieces of different sizes, affecting the convenience of the operator in processing workpieces of different sizes.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a stroke-adjustable mechanism for a press, comprising a mounting frame and a processing table height adjustment device; four sliding rods are slidably connected inside the mounting frame, and movable plates are fixedly connected to the lower ends of the two left sliding rods and the two right sliding rods, with both movable plates slidably connected inside the mounting frame; the processing table height adjustment device includes two protrusions, two sliding sleeves, two telescopic sliding rods, two rotating rollers, two gears, a hydraulic lift, and a gear plate, with the two protrusions fixedly connected to the surfaces of the two movable plates, the two sliding sleeves rotatably connected inside the two protrusions, the two telescopic sliding rods slidably connected inside the two sliding sleeves, the two rotating rollers rotatably connected inside the mounting frame, the two telescopic sliding rods fixedly sleeved on the surfaces of the two rotating rollers, and the two gears fixedly sleeved on the surfaces of the two rotating rollers.

[0007] Preferably, a hydraulic press is fixedly installed on the top of the mounting frame, and an upper molding plate is fixedly installed on the output end of the hydraulic press.

[0008] Preferably, the upper ends of the four slide rods are fixedly connected to a processing table, and the surface of the processing table is slidably connected to two fixed clamps.

[0009] Preferably, the two fixed clamps are internally threaded with a bidirectional threaded rod, and the left and right ends of the bidirectional threaded rod are threaded in opposite directions.

[0010] Preferably, a bidirectional motor is fixedly installed at the bottom of the processing table, and the right end of the bidirectional threaded rod is fixedly connected to the output end of the bidirectional motor.

[0011] Preferably, the hydraulic lift is fixedly installed inside the mounting frame, and the toothed plate is fixedly installed at the output end of the hydraulic lift.

[0012] Preferably, the toothed plate has teeth on both the left and right sides, and the toothed plate is meshed with both gears.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The adjustable stroke mechanism of this press allows the operator to adjust the height of the processing table to place the workpiece at a higher position when the size of the workpiece is smaller than the maximum movement value of the upper die plate. At this time, the upper die plate can still process the workpiece, thereby increasing the applicability of the press and enabling it to adapt to workpieces of different sizes, thus improving the convenience for operators to process workpieces of different sizes. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] Figure 1This is a schematic diagram of the overall structure of an adjustable stroke mechanism for a press according to the present invention.

[0017] Figure 2 This is a schematic diagram of the bottom structure of the processing table of this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the mounting bracket of this utility model;

[0019] Figure 4 This is a schematic diagram of the surface structure of the movable plate of this utility model.

[0020] Reference numerals: 1. Mounting bracket; 2. Hydraulic press; 3. Upper mold plate; 4. Slide rod; 5. Processing table; 6. Fixed clamping plate; 7. Bidirectional motor; 8. Bidirectional threaded rod; 9. Moving plate; 10. Protrusion; 11. Sliding sleeve; 12. Telescopic slide rod; 13. Rotating roller; 14. Gear; 15. Hydraulic lift; 16. Gear plate. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0024] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0025] Please see Figure 1-4This utility model provides a technical solution: a stroke adjustable mechanism for a press, including a mounting frame 1 and a processing table height adjustment device. A hydraulic press 2 is fixedly installed on the top of the mounting frame 1. An upper die plate 3 is fixedly installed on the output end of the hydraulic press 2. Four slide rods 4 are slidably connected inside the mounting frame 1. A processing table 5 is fixedly connected to the upper end of the four slide rods 4. Two fixed clamping plates 6 are slidably connected to the surface of the processing table 5. A bidirectional motor 7 is fixedly installed at the bottom of the processing table 5. A bidirectional threaded rod 8 is threaded inside the two fixed clamping plates 6. The left and right ends of the bidirectional threaded rod 8 are threaded in opposite directions. The right end of the bidirectional threaded rod 8 is fixedly connected to the output end of the bidirectional motor 7. Moving plates 9 are fixedly connected to the lower ends of the two slide rods 4 on the left and the two slide rods 4 on the right. Both moving plates 9 are slidably connected inside the mounting frame 1.

[0026] After the worker places the workpiece on top of the processing table 5, the bidirectional motor 7 is started. The output end of the bidirectional motor 7 rotates, which drives the bidirectional threaded rod 8 to rotate. The rotation of the bidirectional threaded rod 8 drives the two fixed clamping plates 6 to move relative to each other. The two fixed clamping plates 6 move relative to each other and clamp the surface of the workpiece, thereby fixing the workpiece on top of the processing table 5. At this time, after the worker starts the hydraulic press 2, the output end of the hydraulic press 2 slides downward and drives the upper mold plate 3 to slide downward and press against the surface of the workpiece to process it, thus completing the workpiece processing procedure.

[0027] The processing table height adjustment device includes two protrusions 10, two sliding sleeves 11, two telescopic sliding rods 12, two rotating rods 13, two gears 14, a hydraulic lift 15, and a gear plate 16. The two protrusions 10 are fixedly connected to the surfaces of the two moving plates 9, the two sliding sleeves 11 are rotatably connected to the interior of the two protrusions 10, the two telescopic sliding rods 12 are slidably connected to the interior of the two sliding sleeves 11, the two rotating rods 13 are rotatably connected to the interior of the mounting frame 1, the two telescopic sliding rods 12 are fixedly sleeved on the surfaces of the two rotating rods 13, the two gears 14 are fixedly sleeved on the surfaces of the two rotating rods 13, the hydraulic lift 15 is fixedly installed inside the mounting frame 1, and the gear plate 16 is fixedly installed at the output end of the hydraulic lift 15. Teeth are provided on both the left and right sides of the gear plate 16, and the gear plate 16 is meshed with the two gears 14.

[0028] When the operator needs to adjust the height of the processing table 5, the operator can start the hydraulic lift 15. The output end of the hydraulic lift 15 slides downward, causing the toothed plate 16 to slide downward. The downward sliding of the toothed plate 16 causes the two gears 14 and the two rotating rollers 13 to rotate simultaneously. The rotation of the two rotating rollers 13 causes the two telescopic slide rods 12 to rotate upward. The upward rotation of the two telescopic slide rods 12 causes the two sliding sleeves 11 to rotate upward, allowing the telescopic slide rods 12 to slide into the interior of the sliding sleeves 11. The upward rotation of the two sliding sleeves 11 then drives the two protrusions 10. The two movable plates 9 slide upwards, which in turn drives the four sliding rods 4 and the top processing table 5 to slide upwards. By adjusting the installation height of the processing table 5, when the size of the workpiece is smaller than the maximum movement value of the upper mold plate 3, the operator can place the workpiece in a higher position. At this time, the upper mold plate 3 can still process the workpiece, thereby increasing the applicability of the press and making it suitable for workpieces of different sizes, thus improving the convenience for operators to process workpieces of different sizes.

[0029] Structural Description:

[0030] Hydraulic press 2: Hydraulic press 2 is fixedly installed on the top of mounting frame 1. Hydraulic press 2 is a sophisticated and versatile machine that can be widely used in processes such as cutting, punching, blanking, bending, riveting and forming. Presses are divided into three main categories: screw presses, crank presses and hydraulic presses. All of them are equipped with a forging ejection device at the bottom. The ejection device can drive the upper die plate 3 to slide downward to process the workpiece.

[0031] Upper mold plate 3: The upper mold plate 3 is fixedly installed at the output end of the hydraulic press 2. The output end of the hydraulic press 2 can slide downward to drive the upper mold plate 3 to slide downward to process the workpiece.

[0032] Slide rod 4: There are four slide rods 4. All four slide rods 4 are slidably connected inside the mounting frame 1. The processing table 5 is supported and fixed by the four slide rods 4 to ensure the stability of the processing table 5 installed on the mounting frame 1.

[0033] Processing table 5: The processing table 5 is fixedly connected to the top of the four slide bars 4, and the operator can place the workpiece on the top of the processing table 5 for processing;

[0034] Fixed clamping plate 6: There are two fixed clamping plates 6. Both fixed clamping plates 6 are slidably connected to the surface of the processing table 5. The workpiece can be clamped and fixed on the top of the processing table 5 by sliding the two fixed clamping plates 6 relative to each other, which makes it convenient for the staff to fix the workpiece.

[0035] Bidirectional motor 7: Bidirectional motor 7 is fixedly installed at the bottom of processing table 5. The rotation direction of bidirectional motor 7 depends on the direction of armature current or the direction of excitation magnetic field. For permanent magnet DC motor, the forward and reverse rotation of the motor can be achieved by simply changing the direction of armature current. By using a commutation device, such as a double-pole double-throw switch, the polarity of the power supply at both ends of the armature can be switched, thereby changing the direction of armature current and achieving the purpose of bidirectional rotation of the motor. The output end of bidirectional motor 7 can drive bidirectional threaded rod 8 to rotate bidirectionally.

[0036] Bidirectional threaded rod 8: The bidirectional threaded rod 8 is threadedly connected inside the two fixed clamping plates 6. The bidirectional threaded rod 8 can rotate in both directions to drive the two fixed clamping plates 6 to slide relative to each other, thereby allowing the two fixed clamping plates 6 to clamp and fix workpieces of different sizes.

[0037] Protrusion 10: There are two protrusions 10. The two protrusions 10 are fixedly installed on the surfaces of the two movable plates 9 respectively. The two protrusions 10 drive the two movable plates 9 to slide up and down.

[0038] Sliding sleeve 11: There are two sliding sleeves 11. The two sliding sleeves 11 are rotatably connected to the inside of the two protrusions 10 respectively. The two sliding sleeves 11 drive the two protrusions 10 to slide up and down.

[0039] Telescopic slide rod 12: There are two telescopic slide rods 12. The two telescopic slide rods 12 are fixedly sleeved on the surfaces of two rotating rods 13. The rotating rods 13 can drive the telescopic slide rods 12 to rotate. The telescopic slide rods 12 rotate and slide inside the sliding sleeve 11, which can drive the sliding sleeve 11 to move up and down.

[0040] Rotating rod 13: There are two rotating rods 13. The two rotating rods 13 play a transmission role. The rotation of the two rotating rods 13 can drive the two telescopic slide rods 12 to rotate.

[0041] Gear 14: There are two gears 14. The two gears 14 are fixedly sleeved on the surfaces of the two rotating rods 13. The two gears 14 can convert the up-and-down sliding motion of the toothed plate 16 into rotational motion.

[0042] Hydraulic lift 15: The hydraulic lift 15 is fixedly installed inside the mounting frame 1. The hydraulic lift 15 is a type of lifting equipment composed of a traveling mechanism, a hydraulic mechanism, an electric control mechanism, and a support mechanism. The hydraulic oil is pressurized by a vane pump and enters the lower end of the hydraulic cylinder through an oil filter, an explosion-proof solenoid directional valve, a throttle valve, a hydraulic control check valve, and a balance valve, causing the piston of the hydraulic cylinder to move upward and lift the heavy object. The hydraulic lift 15 also drives the toothed plate 16 to slide up and down.

[0043] Gear plate 16: Gear plate 16 is fixedly connected to the output end of hydraulic lift 15. Gear plate 16 is meshed with two gears 14 and drives the two gears 14 to rotate.

[0044] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A stroke-adjustable mechanism for a press, characterized in that, include: Mounting bracket (1) and machining table height adjustment device; The mounting bracket (1) has four sliding rods (4) inside. The lower ends of the two sliding rods (4) on the left and the two sliding rods (4) on the right are fixedly connected to movable plates (9). Both movable plates (9) are slidably connected inside the mounting bracket (1). The processing table height adjustment device includes two protrusions (10), two sliding sleeves (11), two telescopic sliding rods (12), two rotating rods (13), two gears (14), a hydraulic lift (15), and a gear plate (16). The two protrusions (10) are fixedly connected to the surfaces of the two moving plates (9), the two sliding sleeves (11) are rotatably connected to the interior of the two protrusions (10), the two telescopic sliding rods (12) are slidably connected to the interior of the two sliding sleeves (11), the two rotating rods (13) are rotatably connected to the interior of the mounting frame (1), the two telescopic sliding rods (12) are fixedly sleeved on the surfaces of the two rotating rods (13), and the two gears (14) are fixedly sleeved on the surfaces of the two rotating rods (13).

2. The stroke-adjustable mechanism of a press according to claim 1, characterized in that: A hydraulic press (2) is fixedly installed on the top of the mounting frame (1), and an upper molding plate (3) is fixedly installed on the output end of the hydraulic press (2).

3. The stroke-adjustable mechanism of a press according to claim 1, characterized in that: The upper ends of the four slide bars (4) are fixedly connected to a processing table (5), and the surface of the processing table (5) is slidably connected to two fixed clamps (6).

4. The stroke-adjustable mechanism of a press according to claim 3, characterized in that: The two fixed clamps (6) are internally threaded with a bidirectional threaded rod (8), and the left and right ends of the bidirectional threaded rod (8) are threaded in opposite directions.

5. The stroke-adjustable mechanism of a press according to claim 4, characterized in that: A bidirectional motor (7) is fixedly installed at the bottom of the processing table (5), and the right end of the bidirectional threaded rod (8) is fixedly connected to the output end of the bidirectional motor (7).

6. The stroke-adjustable mechanism of a press according to claim 1, characterized in that: The hydraulic lift (15) is fixedly installed inside the mounting frame (1), and the toothed plate (16) is fixedly installed at the output end of the hydraulic lift (15).

7. The stroke-adjustable mechanism of a press according to claim 6, characterized in that: The toothed plate (16) has teeth on both the left and right sides, and the toothed plate (16) is meshed with the two gears (14).

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