Shearing knife performance testing device

Abstract

The utility model discloses a shear knife performance testing device which comprises a working table, and a testing mechanism is arranged on the working table. The testing mechanism comprises a rack, a position adjusting assembly, a shearing assembly and a driving assembly; the driving assembly comprises a driving piece and a guiding piece, the guiding piece is a sliding base arranged on the rack in a sliding mode, an arc-shaped guiding groove is formed in the rack, and the driving piece drives the sliding base to do arc motion along the arc-shaped guiding groove; the position adjusting assembly comprises a position adjusting seat, a first clamp used for fixing a first handle of the scissors is arranged on the position adjusting seat, the position adjusting seat adjusts the scissors to a test position through sliding, and when the scissors are located at the test position, the circle center of the arc-shaped guide groove is located on the central axis extension line of the scissor hinge shaft; the shearing assembly comprises a shearing base, the sliding base drives the shearing base to do arc motion, and a pressure sensor and a second clamp used for fixing a second handle are arranged on the shearing base. The shearing force testing device can realize automatic testing of shearing force of the shearing knife, and is efficient and accurate.

Description

Technical Field

[0001] This utility model belongs to the field of testing equipment technology, and specifically relates to a shearing blade performance testing device. Background Technology

[0002] The shearing force of a shearing blade is its most important performance indicator, and it needs to be tested during quality inspection. Currently, the shearing force of shearing blades is mostly tested manually. Inspectors test the shearing force by cutting test strips of a specific hardness. Manual testing has the following drawbacks: it is time-consuming and labor-intensive, has low testing efficiency, and the operator's operation method and subjectivity can affect the test results, resulting in less objective and accurate shearing blade performance test results. Summary of the Invention

[0003] This invention addresses the problems of low efficiency and insufficient accuracy in manual testing of shear blade shearing force performance in existing technologies by providing a shear blade performance testing device. The objective of this invention is achieved through the following technical solution:

[0004] A shearing blade performance testing device includes a worktable with a feeding mechanism for providing test strips to the shearing blade and a testing mechanism for performing shearing tests. The testing mechanism includes a frame fixed to the worktable, an adjustment component for adjusting the position of the shearing blade, a shearing component for driving the shearing blade to perform shearing motion, and a drive component for providing power to the shearing component. The drive component includes a drive member and a guide member. The guide member is a slide block slidably mounted on the frame, and the frame has an arc-shaped guide groove for guiding the slide block. The drive member drives the slide block to move along the arc-shaped guide groove in an arc. The adjustment component includes an adjustment seat slidably mounted on the frame, and the adjustment seat has a first clamp for fixing a first handle of the shearing blade. The adjustment seat adjusts the shearing blade to the test position by sliding. When the shearing blade is in the test position, the center of the arc-shaped guide groove is located on the extension line of the central axis of the shearing blade's hinge shaft. The shearing component includes a shearing seat, and the slide block drives the shearing seat to move in an arc. The shearing seat has a pressure sensor and a second clamp for fixing a second handle.

[0005] Preferably, the frame includes two opposing frame plates, each with an arc-shaped guide groove, the two arc-shaped guide grooves being aligned, and the outer sides of the arc-shaped guide grooves being covered by arc-shaped cover plates.

[0006] Preferably, the slide is disposed between two frame plates, and a support shaft is threaded through the slide. The two ends of the support shaft are respectively protruded by two arc-shaped guide grooves, and anti-detachment blocks are fixed at both ends of the support shaft.

[0007] Preferably, a connecting plate is provided vertically at the bottom of the slide, the free end of the connecting plate extends outward, the shear seat is slidably mounted on the connecting plate, and the position of the shear seat on the connecting plate can be adjusted to adapt to the position of the second handle; the second clamp includes a clamping platform fixed on the top of the shear seat and a clamping buckle disposed above the clamping platform, the clamping platform and the clamping buckle together define a clamping space.

[0008] Preferably, the driving component is an electric cylinder, the cylinder body of which is hinged to the frame, and the piston rod of which is hinged to the slide block through a hinge joint. The electric cylinder drives the slide block to move in an arc along the arc-shaped guide groove.

[0009] Preferably, the feeding mechanism includes an adjusting seat, and a hopper and a trough mounted on the adjusting seat. The trough extends along the Y direction and includes a pushing end and a discharging end. The pushing end is equipped with a pushing component that pushes the test strip out from the discharging end.

[0010] Preferably, the adjusting seat includes a slide rail fixed on the workbench, a base plate slidably mounted on the slide rail, the base plate being able to slide relative to the slide rail in the X direction, a top plate being fixed above the base plate, and a first mounting plate being assembled between the base plate and the top plate, the first mounting plate being able to move up and down relative to the top plate in the Z direction; the hopper includes a separate hopper body and a discharge plate, both of which are fixedly connected to the first mounting plate.

[0011] Preferably, a second assembly plate is also assembled between the first assembly plate and the base plate, and the second assembly plate is capable of shaking up and down along the Z direction relative to the first assembly plate; the discharge plate is located between the hopper and the material trough, and the discharge plate is fixedly connected to the second assembly plate.

[0012] Preferably, the discharge plate includes a horizontal assembly plate and two vertical groove plates mounted on the horizontal assembly plate. The horizontal assembly plate is fixedly connected to the second assembly plate, and the two vertical groove plates are arranged opposite to each other, with a discharge gap between them connecting the hopper and the material trough. Driven by the second assembly plate, the two vertical groove plates can extend into the hopper.

[0013] Preferably, a pressure plate is also fixed at the front end of the first assembly plate. The pressure plate includes a vertical part and a horizontal part. A pressure cylinder is installed on the vertical part, and a positioning groove that is aligned and communicates with the material trough is opened on the horizontal part.

[0014] Preferably, the workbench is also provided with a receiving mechanism for collecting sheared scrap. The receiving mechanism includes an assembly base, a receiving pipe, and a receiving box. The assembly base is slidably mounted on the workbench, the receiving box is located inside the workbench, the receiving port of the receiving pipe receives the sheared scrap, the discharge port of the receiving pipe is located above the receiving box, and the top of the receiving box is open.

[0015] Compared with the prior art, this utility model has the following technical effects: This testing device, through the cooperation of the feeding mechanism, testing mechanism, and receiving mechanism, can realize the automated testing of the shearing force of the shearing blade. It utilizes a pressure sensor to accurately test the shearing force of the shearing blade, achieving high efficiency and accuracy. The driving component of the testing mechanism, through the cooperation of the driving component and the guide component, can drive the shearing component to make arc-shaped movements, simulating the shearing motion trajectory of the shearing blade and ensuring testing accuracy. The adjusting component can adjust the shearing blade to the testing position to adapt to different models of shearing blades. When the shearing blade is in the testing position, the rotation center of its second handle and the rotation center of the slide are kept on the same axis, improving the cooperation accuracy between the driving component and the shearing component and ensuring testing accuracy. The discharging mechanism can automatically provide test strips to the shearing blade. The setting of the adjusting seat can adjust the position of the hopper and trough to adapt to the position of the shearing blade, improving the adaptability of the entire device. The hopper is set in two parts, including the hopper body and the discharging plate. The discharging plate can shake up and down under the drive of the second assembly plate, loosening the test strips in the hopper body, ensuring smooth discharging and improving the testing efficiency of the entire device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the testing device;

[0017] Figure 2 This is a schematic diagram of the feeding mechanism, testing mechanism, and receiving mechanism in this testing device;

[0018] Figure 3 This is a schematic diagram of the testing mechanism structure in this testing device;

[0019] Figure 4 This is another schematic diagram of the testing mechanism in this testing device;

[0020] Figure 5 This is a schematic diagram of the feeding mechanism in this testing device;

[0021] Figure 6 This is another structural diagram of the feeding mechanism in this testing device;

[0022] The diagram shows: workbench 10; feeding mechanism 20; adjusting seat 21; slide rail 211; base plate 212; first lead screw 2131; first handwheel 2132; top plate 214; first assembly plate 215; second lead screw 2161; second handwheel 2162; second assembly plate 217; top material cylinder 218; pressure plate 22; pressure cylinder 221; positioning groove 222; hopper 23; hopper body 231; discharge plate 232; horizontal assembly plate 2322; vertical groove plate 2321. Material trough 24; rack 25; testing mechanism 30; frame plate 31; arc-shaped guide groove 311; arc-shaped cover plate 312; slide 32; support shaft 321; anti-detachment block 322; connecting plate 33; adjusting seat 34; first clamp 341; shearing seat 35; second clamp 36; electric cylinder 37; piston rod 371; pressure sensor 38; material receiving mechanism 40; material receiving pipe 41; assembly seat 42; material receiving box 43; shearing blade 50; first handle 51; second handle 52; hinge shaft 53. Detailed Implementation

[0023] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:

[0024] See Figure 1 This embodiment discloses a shearing blade performance testing device for testing the shearing force of a shearing blade. It includes a worktable 10, on which a feeding mechanism 20 for providing test strips to the shearing blade 50, a testing mechanism 30 for performing shearing tests, and a collecting mechanism 40 for collecting sheared fragments. In this embodiment, two sets of the feeding mechanism 20, the testing mechanism 30, and the collecting mechanism 40 are provided to improve the testing efficiency of the device.

[0025] See Figures 2-4 The testing mechanism 30 includes a frame fixed on the worktable 10, an adjustment component for adjusting the position of the shear blade 50, a shearing component for driving the shear blade 50 to perform shearing motion, and a drive component for providing power to the shearing component.

[0026] The drive assembly includes a drive component and a guide component. The guide component is a slide block 32 that is slidably mounted on the frame. An arc-shaped guide groove 311 is provided on the frame to guide the slide block 32. The drive component drives the slide block 32 to move in an arc along the arc-shaped guide groove 311. In this embodiment, the drive component is an electric cylinder 37. The cylinder body of the electric cylinder 37 is hinged to the frame. The piston rod 371 of the electric cylinder 37 is hinged to the slide block 32 through a hinge joint. The electric cylinder 37 drives the slide block 32 to move in an arc along the arc-shaped guide groove 311. The frame includes two opposing frame plates 31, each with an arc-shaped guide groove 311. The two arc-shaped guide grooves 311 are aligned and each is covered by an arc-shaped cover plate 312. The slide 32 is positioned between the two frame plates 31, and a support shaft 321 passes through the slide 32. Both ends of the support shaft 321 protrude from the two arc-shaped guide grooves 311, and anti-detachment blocks 322 are fixed at both ends of the support shaft 321. The slide 32 cooperates with the two arc-shaped guide grooves 311 through the support shaft 321, resulting in a more stable running trajectory.

[0027] The adjustment assembly includes an adjustment seat 34 slidably mounted on the frame. The adjustment seat 34 is provided with a first clamp 341 for fixing the first handle 51 of the shearing blade 50. The adjustment seat 34 includes an X-axis slider and a Z-axis slider, which adjust the shearing blade 50 to the test position through bidirectional sliding adjustment to accommodate different models of shearing blades 50. When the shearing blade 50 is in the test position, the center of the arc-shaped guide groove 311 is located on the extension line of the central axis of the hinge shaft 53 of the shearing blade 50, so that the rotation center of the shearing blade 50 during shearing motion is kept on the same axis as the rotation center of the slide 32, improving the matching accuracy between the drive assembly and the shearing assembly and ensuring the test accuracy. The first clamp 341 consists of two clamping blocks and a locking bolt. The first handle 51 is clamped between the two clamping blocks and locked by the locking bolt.

[0028] The shearing assembly includes a shearing seat 35, a connecting plate 33 is vertically mounted on the bottom of the slide 32, the free end of the connecting plate 33 extends outward, the shearing seat 35 is slidably mounted on the connecting plate 33, and the position of the shearing seat 35 on the connecting plate 33 is adjustable to accommodate the position of the second handle 52; the second clamp 36 includes a clamping platform fixed to the top of the shearing seat 35 and a clamping buckle disposed above the clamping platform, the clamping platform and the clamping buckle together define a clamping space; a pressure sensor 38 is provided on the shearing seat 35, and when the shearing blade 50 cuts the test strip, the pressure sensor 38 tests the corresponding pressure to test the shearing force of the shearing blade 50. When performing a shearing test on the shearing blade 50, first fix its first handle 51 to the first clamp 341, adjust the shearing blade 50 to the test position through the adjusting seat 34, then adjust the shearing seat 35 to a suitable position and fix it so that the second clamp 36 can clamp the second handle 52 in a suitable position. After both handles of the shearing blade 50 are fixed, start the electric cylinder 37, and the slide 32 drives the shearing seat 35 to make an arc movement. The second handle 52 makes a shearing movement synchronously. The pressure sensor 38 records the pressure when the shearing blade 50 cuts the test strip, so as to realize the detection of the shearing force of the shearing blade 50.

[0029] See Figure 5 , Figure 6 The feeding mechanism 20 includes an adjusting seat 21, and a hopper 23 and a trough 24 mounted on the adjusting seat 21. The trough 24 extends along the Y direction and includes a pushing end and a discharging end. The test strip is conveyed from the trough 24 to the cutting opening of the shearing blade 50. The pushing end is equipped with a pushing component that pushes the test strip out from the discharging end. In this embodiment, the pushing component is a meshing gear and rack 25. The motor drives the gear and drives the rack 25 forward and backward. The gear and rack 25 cooperate to realize the step-by-step pushing of the test strip. One test strip can complete multiple tests, saving costs.

[0030] The adjusting seat 21 includes a slide rail 211 fixed on the workbench 10. A base plate 212 is slidably mounted on the slide rail 211. The base plate 212 can slide relative to the slide rail 211 in the X direction. A first lead screw 2131 and a first nut are fitted on the slide rail 211 and the base plate 212, respectively. The first lead screw 2131 extends in the X direction, and a first handwheel 2132 is fitted at the end of the first lead screw 2131. Rotating the first handwheel 2132 can adjust the position of the base plate 212 in the X direction. A top plate 214 is fixedly provided above, and a first mounting plate 215 is assembled between the bottom plate 212 and the top plate 214. The first mounting plate 215 can move up and down relative to the top plate 214 in the Z direction. A second lead screw 2161 and a second nut are assembled on the top plate 214 and the first mounting plate 215, respectively. The second lead screw 2161 extends in the Z direction, and a second handwheel 2162 is assembled at the end of the second lead screw 2161. Rotating the second handwheel 2162 can realize the adjustment of the first mounting plate 215 in the Z direction. The hopper 23 includes a separate hopper body 231 and a discharge plate 232. The hopper body 231 and the trough 24 are both fixedly connected to the first assembly plate 215. The hopper body 231 and the trough 24 can move synchronously with the first assembly plate 215 to accommodate different types of shearing blades 50. Through the cooperation of two sets of lead screw assemblies, the trough 24 can be adjusted to the feeding position so that the discharge port of the trough 24 is aligned with the shearing port of the shearing blade 50.

[0031] A second assembly plate 217 is also assembled between the first assembly plate 215 and the base plate 212. The base plate 212 is equipped with a shaking cylinder, and the piston rod 371 of the shaking cylinder is fixedly connected to the second assembly plate 217. Under the action of the shaking cylinder, the second assembly plate 217 can shake up and down relative to the first assembly plate 215 along the Z direction. The discharge plate 232 is located between the hopper 231 and the material trough 24, and the discharge plate 232 is fixedly connected to the second assembly plate 217. The discharge plate 232 includes a horizontal assembly plate 2322 and two vertically mounted plates on the horizontal assembly plate 2322. The groove plate 2321, the horizontal assembly plate 2322 and the second assembly plate 217 are fixedly connected. The two vertical groove plates 2321 are arranged opposite each other and have a discharge gap between them that connects the bin body 231 and the material trough 24. Driven by the second assembly plate 217, the two vertical groove plates 2321 can extend into the bin body 231. The bin body 231 stores multiple test strips. Driven by the second assembly plate 217, the discharge plate 232 can shake up and down to loosen the test strips in the bin body 231, ensuring that the test strips can enter the material trough 24 one by one, thereby improving the testing efficiency of the entire equipment.

[0032] To prevent the test strip from shifting and affecting the test results when the shearing blade 50 is cutting, a pressure plate 22 is fixedly provided at the front end of the first assembly plate 215. The pressure plate 22 includes a vertical part and a horizontal part. A pressure cylinder 221 is installed on the vertical part, and a positioning groove 222 is opened on the horizontal part to align and communicate with the material groove 24. The pressure cylinder 221 can press and fix the test strip in the positioning groove 222 to cooperate with the shearing action of the shearing blade 50 and ensure the accuracy of the test structure.

[0033] The receiving mechanism 40 includes an assembly base 42, a receiving pipe 41, and a receiving box 43. The assembly base 42 is slidably mounted on the workbench 10, and the receiving box 43 is located inside the workbench 10. By moving the assembly base 42, the receiving port of the receiving pipe 41 can be aligned with the shearing port of the shearing blade 50 to receive the sheared scrap. The discharge port of the receiving pipe 41 is located above the receiving box 43, and the top of the receiving box 43 is open to receive and collect the sheared scrap.

[0034] It should be understood that in the claims and description of this utility model, all instances of "comprising..." should be understood as having an open-ended meaning, that is, equivalent to "at least comprising...", and should not be understood as having a closed-ended meaning, that is, its meaning should not be understood as "only comprising...". The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0035] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model should be included within the protection scope of this utility model.

Claims

1. A shear knife performance testing device characterized by, The test mechanism is arranged on the workbench and is used for shearing test. The test mechanism comprises a rack fixed on the workbench, a position adjusting assembly used for adjusting the position of the shearing cutter, a shearing assembly used for driving the shearing cutter to make shearing movement, and a driving assembly used for providing power for the shearing assembly. The driving assembly comprises a driving member and a guide member. The guide member is a sliding seat slidingly arranged on the rack. An arc-shaped guide slot is formed on the rack to guide the sliding seat. The driving member drives the sliding seat to make arc line movement along the arc-shaped guide slot. The position adjusting assembly comprises a position adjusting seat slidingly arranged on the rack. A first clamp used for fixing a first handle of the shearing cutter is arranged on the position adjusting seat. The position adjusting seat is adjusted by sliding to a test position of the shearing cutter. When the shearing cutter is at the test position, the center of the arc-shaped guide slot is located on the extension line of the central axis of the hinge shaft of the shearing cutter. The shearing assembly comprises a shearing seat. The sliding seat drives the shearing seat to make arc line movement. A pressure sensor and a second clamp used for fixing a second handle are arranged on the shearing seat.

2. The shear blade performance testing device of claim 1, wherein, The rack comprises two rack plates arranged oppositely. The arc-shaped guide slots are formed on the two rack plates. The two arc-shaped guide slots are arranged in position. The outer sides of the arc-shaped guide slots are covered by arc-shaped cover plates.

3. The shear knife performance testing device of claim 2, wherein, The sliding seat is arranged between the two rack plates. A supporting shaft is arranged on the sliding seat. The two ends of the supporting shaft are respectively penetrated by the two arc-shaped guide slots. The two ends of the supporting shaft are fixedly provided with anti-dropping blocks.

4. The shear blade performance testing apparatus of claim 3, wherein, The bottom of the sliding seat is vertically provided with a connecting plate. The free end of the connecting plate extends outward. The shearing seat is slidably assembled on the connecting plate. The position of the shearing seat on the connecting plate is adjustable to adapt to the position of the second handle. The second clamp comprises a clamping table fixed on the top of the shearing seat and a clamping buckle arranged above the clamping table. The clamping table and the clamping buckle jointly define a clamping space.

5. The shear blade performance testing apparatus of claim 4, wherein, The driving member is an electric cylinder. The cylinder body of the electric cylinder is hingedly connected to the rack. The piston rod of the electric cylinder is hingedly connected to the sliding seat. The electric cylinder drives the sliding seat to make arc line movement along the arc-shaped guide slot.

6. A shear blade performance testing apparatus according to any one of claims 1-5, wherein, The workbench is further provided with a feeding mechanism for providing test strips for the shearing cutter. The feeding mechanism comprises an adjusting seat, a material bin and a material groove assembled above the adjusting seat. The material groove extends along the Y direction. The material groove comprises a pushing end and a discharging end. The pushing end is provided with a pushing assembly for pushing the test strips out of the discharging end.

7. The shear knife performance testing apparatus of claim 6, wherein, The adjusting seat comprises a sliding rail fixed on the workbench. A bottom plate is slidingly arranged on the sliding rail. The bottom plate can slide along the X direction relative to the sliding rail. A top plate is fixed above the bottom plate. A first assembly plate is assembled between the bottom plate and the top plate. The first assembly plate can move up and down along the Z direction relative to the top plate. The material bin comprises a bin body and a discharging plate arranged in two parts. The bin body and the material groove are fixed to the first assembly plate.

8. The shear knife performance testing device of claim 7, wherein, A second assembly plate is further assembled between the first assembly plate and the bottom plate. The second assembly plate can shake up and down along the Z direction relative to the first assembly plate. The discharging plate is located between the bin body and the material groove. The discharging plate is fixed to the second assembly plate.

9. The shear knife performance testing apparatus of claim 8, wherein, The discharge plate comprises a horizontal assembly plate and two vertical groove plates vertically arranged on the horizontal assembly plate, the horizontal assembly plate is fixedly connected with the second assembly plate, the two vertical groove plates are oppositely arranged and have a discharge gap communicating the bin body and the material groove therebetween; the two vertical groove plates can be extended into the bin body under the driving of the second assembly plate.

10. The shear knife performance testing apparatus of claim 9, wherein, The front end of the first assembly plate is further fixedly provided with a pressing plate, the pressing plate comprises a vertical part and a horizontal part, a pressing cylinder is assembled on the vertical part, and the horizontal part is provided with a positioning groove in alignment with the material groove.

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