A knife holder swing assembly and a swing type plate shearing machine

Abstract

The utility model discloses a knife rest swing subassembly and swing type plate shearing machine belongs to bending machine technical field. The knife rest swing subassembly includes hydraulic cylinder, knife rest, swing arm, upper blade and lower blade, and swing arm one end connects the knife rest, and hydraulic cylinder is connected with frame, knife rest respectively, and lower blade is fixed on the workstation, and upper blade sets up on the knife rest, and with lower blade is 3 degree 5 degree inclination setting, still includes blade gap adjusting mechanism, and the blade gap adjusting mechanism includes adjusting handle, adjusting lever, adjusting gear, sector gear, eccentric sleeve and knife rest axle, and swing arm other end is hinged with frame through eccentric sleeve, knife rest axle, and adjusting lever is connected with sector gear through adjusting gear, and adjusting lever both ends are fixed with frame through bearing.

Description

Technical Field

[0001] This utility model belongs to the field of shearing machine technology, and more specifically, relates to a blade holder swing assembly and a swing shearing machine. Background Technology

[0002] As a commonly used sheet metal shearing equipment in the metal processing industry, the folding swing shearing machine is widely used in the cutting of metal sheets such as steel plates, aluminum plates, and copper plates due to its short shearing stroke and high efficiency.

[0003] A search revealed that patent document CN223656103U discloses a swing-type shearing machine, comprising: an operating table, two sets of connecting frames fixedly installed on the upper surface of the operating table, each set of connecting frames having a guide groove at one end of its inner side, a shearing mechanism slidably installed in the guide groove, a lower cutter fixedly installed between the two sets of connecting frames, the lower cutter and the shearing mechanism performing staggered shearing, a guide cylinder fixedly installed at one end of the operating table, the guide cylinder surrounding the lower end of the lower cutter, the discharge port of the guide cylinder being connected to a storage mechanism, and the storage mechanism being fixedly installed inside the operating table.

[0004] However, in actual use, the blade holder swing mechanism of existing swing shearing machines often uses a single hinge connection, which is prone to slight deviation during operation, resulting in poor flatness of the sheared plate surface and large dimensional errors, making it difficult to meet the requirements of high-precision processing. In addition, the power transmission of the blade holder drive mechanism is not smooth enough, the start and stop response speed is slow, and slippage is prone to occur during shearing due to the plate not being firmly fixed, affecting the continuity of shearing. Utility Model Content

[0005] 1. Technical problems to be solved To address the problems existing in the prior art, the purpose of this utility model is to provide a blade holder swing assembly that can precisely adjust the gap between the upper and lower blades, thereby improving cutting accuracy.

[0006] Another objective of this utility model is to provide a swing beam shearing machine with stable positioning and clamping functions and convenient board receiving and conveying functions, which is easy to operate and highly safe.

[0007] 2. Technical Solution To solve the above problems, the present invention adopts the following technical solution.

[0008] The tool holder swing assembly of this utility model includes a hydraulic cylinder, a tool holder, a swing arm, an upper blade, and a lower blade. One end of the swing arm is connected to the tool holder. The hydraulic cylinder is connected to the machine frame and the tool holder respectively. The lower blade is fixed on the worktable. The upper blade is disposed on the tool holder and is inclined at 3°-5° to the lower blade. It also includes a blade gap adjustment mechanism, which includes an adjustment handle, an adjustment rod, an adjustment gear, a sector gear, an eccentric sleeve, and a tool holder shaft. The other end of the swing arm is hinged to the machine frame through the eccentric sleeve and the tool holder shaft. The adjustment rod is connected to the sector gear through the adjustment gear. Both ends of the adjustment rod are fixed to the machine frame through bearings.

[0009] In one possible embodiment of this utility model, a scale dial is also included. The scale dial is fixed on the frame, and the adjusting rod passes through the scale dial and is equipped with a locking nut. The locking nut locks the adjusting rod to prevent rotation from affecting the blade precision. The scale dial allows the operator to visually observe the adjustment amount, improving the accuracy of the adjustment. The locking nut prevents accidental rotation of the adjusting rod after adjustment, ensuring the stability of the blade gap.

[0010] In one possible embodiment of this utility model, both the upper and lower blades are made of Cr12MoV die steel. Cr12MoV die steel has high hardness, high wear resistance, and good toughness, which can improve the service life of the blades, ensure the stability of the shearing process, and is suitable for shearing plates of various hardnesses.

[0011] This utility model also provides a swing beam shearing machine, comprising: a frame, on which a worktable is mounted; the aforementioned blade holder swing assembly; and a positioning and clamping assembly, including a positioning plate, a pressure rod, and a buffer spring; the positioning plate is fixed on the worktable, the buffer spring is sleeved on the pressure rod, and the pressure rod is fixed on the blade holder. The positioning plate is used to position the sheet metal to ensure the accuracy of the shearing position; the pressure rod moves synchronously with the upper blade under the drive of the blade holder, pressing the sheet metal onto the worktable before shearing; the buffer spring provides a buffering effect, preventing excessive pressure force from damaging the sheet metal, while ensuring the stability of the clamping.

[0012] In one possible embodiment of this utility model, a sheet metal receiving assembly is further included. The sheet metal receiving assembly includes a slider, a guide rail, a receiving beam, a rack, a connecting plate, a drive shaft, and a drive motor. The guide rail and the rack are arranged parallel to each other on the frame. The connecting plate and the drive motor are spaced apart on the receiving beam. The slider is fixed to both ends of the receiving beam and cooperates with the guide rail. At least one end of the drive shaft is fitted with a transmission gear that meshes with the rack. The drive shaft passes through the connecting plate and is connected to the drive motor. The drive motor drives the drive shaft to rotate, which in turn drives the transmission gear to move along the rack, thereby causing the receiving beam to slide along the guide rail via the slider. This allows for adjustment of the receiving beam's position, enabling adjustment of the receiving position according to the sheet metal length and shearing requirements. This facilitates the receiving and conveying of the sheared sheet metal, improving processing efficiency.

[0013] In one possible embodiment of this utility model, a protective railing is provided above the workbench, and the protective railing is fixed to the frame. The protective railing can prevent operators from accidentally touching the blade during the shearing process, thereby improving the operational safety of the equipment.

[0014] In one possible embodiment of this utility model, ball bearings are provided on the worktable. The ball bearings reduce the friction between the sheet metal and the worktable, facilitating the movement and positioning of the sheet metal on the worktable and reducing the labor intensity of the operator.

[0015] In one possible embodiment of this utility model, a PLC controller electrically connected to the blade holder swing assembly and the sheet metal receiving assembly is also included. The PLC controller is connected to a touch screen, which is used for parameter setting and status display. The touch screen allows for convenient setting of shearing parameters (such as shearing speed and blade gap) and real-time display of the equipment's operating status (such as hydraulic cylinder operating status and drive motor operating status), achieving automated control of the equipment and improving operational convenience.

[0016] 3. Beneficial effects Compared with the prior art, the beneficial effects of this utility model are as follows: (1) The blade holder swing assembly of this utility model is equipped with a blade gap adjustment mechanism. By adjusting the handle and rotating the adjustment rod, the eccentric sleeve is driven to rotate through the meshing transmission of the adjustment gear and the sector gear, thereby changing the hinge position of the swing arm and the frame, and realizing the precise adjustment of the gap between the upper blade and the lower blade. The cooperation between the dial and the locking nut can intuitively display the adjustment amount and lock the adjustment rod, avoid the adjustment rod from loosening during the shearing process, ensure the stability of the blade gap, and improve the shearing accuracy. (2) The upper and lower blades of this utility model are made of Cr12MoV mold steel, which has high hardness, high wear resistance and good hardenability, thus extending the service life of the blades and reducing equipment maintenance costs. (3) The positioning and clamping assembly of the swing shearing machine of this utility model has the pressure bar contacting the plate before the upper blade during the downward pressing of the blade holder. The plate is pressed on the worktable by the elastic pressure of the buffer spring. With the limiting effect of the positioning plate, the plate is prevented from shifting during shearing, and the shearing accuracy is further guaranteed. (4) The plate receiving assembly of this utility model drives the transmission shaft to rotate through the drive motor, and drives the receiving beam to move along the guide rail by the meshing transmission of gear and rack. It can automatically receive the cut plate and transport it to the designated position, replace manual handling, improve processing efficiency and reduce safety risks. (5) The protective railing above the workbench of this utility model can effectively prevent operators from accidentally touching the blade and improve the safety of equipment operation; the ball bearings on the workbench can reduce the friction between the plate and the workbench, making it easier to feed and move the plate; the combination of PLC controller and touch screen realizes intelligent control of the equipment, and operators can conveniently set shearing parameters and view the operating status of the equipment, reducing the difficulty of operation. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the swing beam shearing machine of this utility model; Figure 2 This is a three-dimensional structural diagram of the swing beam shearing machine of this utility model from another perspective; Figure 3 This is a side view of the swing beam shearing machine of this utility model; Figure 4 This is a rear view of the swing beam shearing machine of this utility model; Figure 5 This is the front view of the swing beam shearing machine of this utility model; Figure 6 This is a bottom-view perspective view of the swing beam shearing machine of this utility model; Figure 7 This is a schematic diagram showing the fit between the dial and the locking nut of this utility model.

[0018] Explanation of markings in the diagram: 100. Frame; 110. Workbench; 120. Guardrail; 130. Ball bearings; 200. Positioning and clamping assembly; 210. Positioning plate; 220. Pressure bar; 230. Buffer spring; 300. Tool holder swing assembly; 310. Hydraulic cylinder; 320. Tool holder; 330. Swing arm; 340. Upper blade; 350. Lower blade; 360. Blade gap adjustment mechanism; 361. Adjusting handle; 362. Adjusting rod; 363. Adjusting gear; 364. Sector gear; 365. Eccentric sleeve; 366. Tool holder shaft; 367. Dial; 368. Locking nut; 400. Sheet metal receiving assembly; 410. Slider; 420. Guide rail; 430. Receiving beam; 440. Rack; 450. Connecting plate; 460. Drive shaft; 470. Drive motor; 480. Transmission gear; 500. PLC controller; 510. Touch screen. Detailed Implementation

[0019] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] The present invention will be further described below with reference to the embodiments.

[0022] like Figures 1 to 7 As shown, the swing arm shear in this embodiment includes a hydraulic cylinder 310, a blade holder 320, a swing arm 330, an upper blade 340, a lower blade 350, and a blade gap adjustment mechanism 360. One end of the swing arm 330 is connected to the blade holder 320. The hydraulic cylinder 310 is connected to the frame 100 and the blade holder 320 respectively. The lower blade 350 is fixed on the worktable 110. The upper blade 340 is set on the blade holder 320 and is inclined at 3°-5° to the lower blade 350. This inclination angle can ensure a smooth shearing process and reduce shearing force.

[0023] Among them, such as Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the blade gap adjustment mechanism 360 includes an adjustment handle 361, an adjustment rod 362, an adjustment gear 363, a sector gear 364, an eccentric sleeve 365, and a tool holder 320 shaft. The other end of the swing arm 330 is hinged to the frame 100 via the eccentric sleeve 365 and the tool holder 320 shaft. The adjustment rod 362 is connected to the sector gear 364 via the adjustment gear 363, and both ends of the adjustment rod 362 are fixed to the frame 100 via bearings. During adjustment, rotating the adjustment handle 361 causes the adjustment rod 362 to rotate. The adjustment rod 362 then drives the sector gear 364 to rotate via the adjustment gear 363. The sector gear 364 then drives the tool holder 320 shaft and the eccentric sleeve 365 to rotate, thereby adjusting the position of the swing arm 330 and adjusting the gap between the upper blade 340 and the lower blade 350.

[0024] like Figure 7 As shown, the blade gap adjustment mechanism 360 also includes a dial 367, which is fixed to the frame 100. An adjusting rod 362 passes through the dial 367 and is fitted with a locking nut 368. The locking nut 368 locks the adjusting rod 362 to prevent rotation from affecting blade precision. The dial 367 has clear graduations, allowing operators to precisely adjust the gap. After adjustment, the locking nut 368 is tightened to fix the adjusting rod 362, preventing rotation during shearing and ensuring a stable blade gap.

[0025] In this embodiment, both the upper blade 340 and the lower blade 350 are made of Cr12MoV mold steel. After heat treatment, Cr12MoV mold steel can reach a hardness of HRC60-62, which has excellent wear resistance and impact resistance, can withstand long-term shearing work, reduce blade wear, extend service life, and at the same time ensure a smooth shearing surface and improve shearing quality.

[0026] like Figure 1 and Figure 5 As shown, this embodiment also provides a swing beam shearing machine including: a frame 100, on which a worktable 110 is provided; the aforementioned blade holder swing assembly 300; and a positioning and clamping assembly 200, including a positioning plate 210, a pressure rod 220, and a buffer spring 230; the positioning plate 210 is fixed on the worktable 110, the buffer spring 230 is sleeved on the pressure rod 220, and the pressure rod 220 is fixed on the blade holder 320.

[0027] During operation, the sheet metal is placed on the worktable 110 and positioned close to the positioning plate 210. After starting the equipment, the hydraulic cylinder 310 drives the blade holder 320 to swing the swing arm 330. The upper blade 340 moves downward with the blade holder 320. At the same time, the pressure rod 220 moves downward synchronously under the drive of the blade holder 320, pressing the sheet metal firmly onto the worktable 110. The buffer spring 230 is compressed, generating elastic pressure to ensure that the sheet metal does not shift during the shearing process. After shearing is completed, the hydraulic cylinder 310 drives the blade holder 320 to reset, and the pressure rod 220 resets under the action of the buffer spring 230.

[0028] Combination Figure 2 and Figure 4 As shown, the swing beam shearing machine also includes a sheet metal receiving assembly 400, which includes a slider 410, a guide rail 420, a receiving beam 430, a rack 440, a connecting plate 450, a transmission shaft 460, and a drive motor 470. The guide rail 420 and the rack 440 are arranged parallel to each other on the frame 100. The connecting plate 450 and the drive motor 470 are spaced apart on the receiving beam 430. The slider 410 is fixed at both ends of the receiving beam 430 and cooperates with the guide rail 420. One end of the transmission shaft 460 is fitted with a transmission gear 480 that meshes with the rack 440. The transmission shaft 460 passes through the connecting plate 450 and is connected to the drive motor 470.

[0029] After the drive motor 470 starts, it drives the transmission shaft 460 to rotate. The transmission shaft 460 drives the transmission gear 480 to rotate, and the transmission gear 480 meshes with the rack 440, which in turn drives the receiving beam 430 to slide along the guide rail 420 via the slider 410, realizing the forward and backward movement of the receiving beam 430. The position of the receiving beam 430 is adjusted according to the length of the sheet material so that it is positioned below the sheared sheet material, facilitating the receiving of the sheared sheet material and preventing it from falling and being damaged. Simultaneously, the received sheet material can be transported to a designated position, improving processing efficiency.

[0030] In this embodiment, as Figure 3 As shown, a guardrail 120 is installed above the workbench 110, and the guardrail 120 is fixed to the frame 100. The guardrail 120 is made of high-strength steel and surrounds the edge of the workbench 110. It can effectively prevent operators from accidentally touching the moving blades and other moving parts during the shearing process, reduce the risk of safety accidents, and improve the safety of the equipment.

[0031] Furthermore, such as Figure 3As shown, the worktable 110 is equipped with ball bearings 130. The ball bearings 130 are evenly distributed on the upper surface of the worktable 110. When the sheet material moves on the worktable 110, the ball bearings 130 roll, converting the sliding friction between the sheet material and the worktable 110 into rolling friction, reducing the friction force. The operator can easily push the sheet material for positioning, reducing labor intensity, and at the same time avoiding scratches on the bottom surface of the sheet material.

[0032] In this embodiment, the PLC controller is electrically connected to the tool holder swing assembly 300 and the sheet metal receiving assembly 400; the PLC controller is also connected to the touch screen 510, which is used for parameter setting and status display. The PLC controller adopts the Siemens S7-200 SMART series, which has stable control performance and can achieve precise control of components such as the hydraulic cylinder 310 and the drive motor 470. Through the touch screen 510, the operator can set parameters such as shearing speed, blade gap, and the moving position of the receiving beam 430. At the same time, the touch screen 510 can display the operating status of the equipment in real time, such as the extension and retraction status of the hydraulic cylinder 310, the operating status of the drive motor 470, and equipment fault information, which facilitates the operator to monitor the equipment operation in real time, handle faults in a timely manner, and improve the convenience of operation and the reliability of the equipment.

[0033] The swing-type shearing machine and blade holder swing assembly 300 of this utility model can precisely adjust the gap between the upper and lower blades 350 through the blade gap adjustment mechanism 360, which is suitable for shearing plates of different thicknesses and materials, and improves shearing accuracy. The positioning and clamping assembly 200 ensures the stability of the plate during the shearing process and avoids displacement. The plate receiving assembly 400 facilitates the receiving and conveying of the sheared plate, improving processing efficiency. The setting of the guardrail 120 and the ball bearing 130 improves the safety and ease of operation of the equipment. The cooperation of the PLC controller and the touch screen 510 realizes the automated control of the equipment, further improving the ease of operation and equipment reliability.

[0034] The above examples are merely descriptions of preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Any modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the design concept of the present invention shall fall within the protection scope of the present invention.

Claims

1. A tool holder swing assembly (300), comprising a hydraulic cylinder (310), a tool holder (320), a swing arm (330), an upper blade (340), and a lower blade (350), wherein one end of the swing arm (330) is connected to the tool holder (320); the hydraulic cylinder (310) is connected to a machine frame (100) and the tool holder (320) respectively, and the lower blade (350) is fixed on a worktable (110); the upper blade (340) is disposed on the tool holder (320) and is inclined at 3°-5° to the lower blade (350); characterized in that, It also includes a blade gap adjustment mechanism (360), which includes an adjustment handle (361), an adjustment rod (362), an adjustment gear (363), a sector gear (364), an eccentric sleeve (365), and a tool holder (320) shaft. The other end of the swing arm (330) is hinged to the frame (100) through the eccentric sleeve (365) and the tool holder (320) shaft. The adjustment rod (362) is connected to the sector gear (364) through the adjustment gear (363). Both ends of the adjustment rod (362) are fixed to the frame (100) through bearings.

2. The tool holder swing assembly according to claim 1, characterized in that, It also includes a dial (367) which is fixed on the frame (100). The adjusting rod (362) passes through the dial (367) and is equipped with a locking nut (368). The adjusting rod (362) is locked by the locking nut (368) to prevent rotation from affecting the accuracy of the blade.

3. The tool holder swing assembly according to claim 2, characterized in that, Both the upper blade (340) and the lower blade (350) are made of Cr12MoV mold steel.

4. A swing beam shearing machine, characterized in that, include: A frame (100) on which a worktable (110) is provided; The tool holder swing assembly (300) includes a hydraulic cylinder (310), a tool holder (320), a swing arm (330), an upper blade (340), a lower blade (350), and a blade gap adjustment mechanism (360). One end of the swing arm (330) is connected to the tool holder (320). The hydraulic cylinder (310) is connected to the machine frame (100) and the tool holder (320) respectively. The lower blade (350) is fixed on the worktable (110). The upper blade (340) is provided with... It is placed on the tool holder (320) and is inclined at 3°-5° to the lower blade (350); The blade gap adjustment mechanism (360) includes an adjustment handle (361), an adjustment rod (362), an adjustment gear (363), a sector gear (364), an eccentric sleeve (365), and a tool holder (320) shaft. The other end of the swing arm (330) is hinged to the frame (100) through the eccentric sleeve (365) and the tool holder (320) shaft. The adjustment rod (362) is connected to the sector gear (364) through the adjustment gear (363). Both ends of the adjustment rod (362) are fixed to the frame (100) through bearings. The positioning and clamping assembly (200) includes a positioning plate (210), a pressure bar (220), and a buffer spring (230); the positioning plate (210) is fixed on the worktable (110), the buffer spring (230) is sleeved on the pressure bar (220), and the pressure bar (220) is fixed on the tool holder (320).

5. The swing beam shearing machine according to claim 4, characterized in that, It also includes a sheet metal receiving assembly (400), which includes a slider (410), a guide rail (420), a receiving beam (430), a rack (440), a connecting plate (450), a drive shaft (460), and a drive motor (470). The guide rail (420) and the rack (440) are arranged parallel to each other on the frame (100). The connecting plate (450) and the drive motor (470) are spaced apart on the receiving beam (430). The slider (410) is fixed at both ends of the receiving beam (430) and cooperates with the guide rail (420). At least one end of the drive shaft (460) is fitted with a transmission gear (480) that meshes with the rack (440). The drive shaft (460) passes through the connecting plate (450) and is connected to the drive motor (470).

6. The swing beam shearing machine according to claim 5, characterized in that, A guardrail (120) is provided above the workbench (110), and the guardrail (120) is fixed to the frame (100).

7. The swing beam shearing machine according to claim 6, characterized in that, The worktable (110) is equipped with ball bearings (130).

8. The swing beam shearing machine according to claim 7, characterized in that, It also includes a PLC controller (500) electrically connected to the tool holder swing assembly (300) and the sheet metal receiving assembly (400); the PLC controller (500) is connected to a touch screen (510) for parameter setting and status display.

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