Intelligent numerical control machine tool test tool

Abstract

The utility model relates to the technical field of machine tool testing, in particular to an intelligent numerical control machine tool testing tool which comprises a base, a motor is fixedly arranged on the base, a fixing assembly used for fixing a protective cover is arranged on the base, a telescopic assembly is connected to an output shaft of the motor, and a testing assembly is connected to the telescopic assembly. The testing assembly comprises a disc arranged on the telescopic assembly, a plurality of notches are formed in the disc, the notches are arranged in the radial direction of the disc and are in sliding connection with simulation blocks, and the disc is further provided with a plurality of limiting parts in one-to-one correspondence with the notches. And the limiting parts are used for limiting the corresponding simulation blocks in the notches. Through the arranged test assembly, when centrifugal force exceeds limiting force applied by a limiting part, a simulation block moves towards the inner wall of a protective cover along a notch to generate collision, so that the scene that the cutter flies randomly in actual production is simulated, and the impact resistance of the cutter is tested.

Description

Technical Field

[0001] This utility model relates to the field of machine tool testing technology, and specifically to an intelligent CNC machine tool testing fixture. Background Technology

[0002] Machine tool guards are structural components used on machine tools to ensure the safety of the working space. Because cutting tools on machine tools are prone to fatigue fracture after prolonged use, causing them to fly off and inflict impact damage on the machine tool guard, the impact resistance of the machine tool guard directly determines the safety of the machine tool in the external environment. Therefore, conducting impact resistance testing on machine tool guards is a crucial part of quality control during the production process.

[0003] Currently, the impact resistance tests for machine tool guards on the market only use simulated vertical impacts (such as free fall of steel balls), which cannot fully reproduce the dynamic scenario of tool flying off at multiple angles. Since the location of tool flying off in actual production is uncertain, the test results will deviate from the actual working conditions, and the impact resistance performance of the guard on the tool cannot be effectively tested. Utility Model Content

[0004] The purpose of this invention is to provide an intelligent CNC machine tool testing fixture to address the aforementioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A smart CNC machine tool testing fixture includes a base, on which a motor is fixedly mounted. A fixing component for fixing a protective cover is also mounted on the base. A telescopic component is connected to the output shaft of the motor, and a testing component is connected to the telescopic component. The testing component includes a disc mounted on the telescopic component. The disc has multiple slots, each arranged radially on the disc and slidably connected to a simulated block. The disc also has multiple limiting parts corresponding to the slots, which restrict the corresponding simulated blocks within the slots.

[0007] Furthermore, the limiting part includes limiters symmetrically arranged on both sides of the slot. Each limiter includes a baffle rotatably disposed on the disc. Connecting rods are rotatably connected to both sides of the baffle. A sliding rod is rotatably connected to the end of each connecting rod. The sliding rod is slidably connected to the disc. Both ends of the sliding rod are connected to the elastic part.

[0008] Furthermore, the elastic part includes a fixed plate slidably connected to the disk, with two sliding rods fixedly connected to each side of the fixed plate, and a positioning rod fixedly provided on the fixed plate. The positioning rod is slidably connected to the disk and has a compression spring passing through its outer side, with the compression spring positioned between the fixed rod and the disk.

[0009] Furthermore, the spring constants corresponding to the multiple limiting parts are different.

[0010] Furthermore, the fixing component includes a first protective plate and a second protective plate fixedly connected to the base, and a slide rail adapted to the protective cover is also fixedly provided on the base. The telescopic component and the testing component are both disposed inside the first protective plate and the second protective plate.

[0011] Furthermore, the telescopic assembly includes a rotating shaft fixedly connected to the output shaft of the first motor, the rotating shaft being rotatably connected to the first protective plate, a telescopic shaft being slidably connected inside the rotating shaft, the telescopic shaft being coaxial with the rotating shaft, the end of the telescopic shaft being fixedly connected to a disc, one side of the telescopic shaft being connected to a driver, and a chuck being fixedly provided at the other end, the chuck being slidably connected to a locking block on the inner wall of the rotating shaft.

[0012] Furthermore, the driver includes a second motor, a screw is fixedly connected to the output end of the second motor, the screw is rotatably connected to the base, a traction part is threadedly connected to the screw, one end of the traction part is slidably connected to the base, and the other end is rotatably connected to a slot on the telescopic shaft.

[0013] The intelligent CNC machine tool testing fixture provided by this utility model has the following beneficial effects as described above:

[0014] The test component is set up so that the first motor drives the test component to move through the telescopic component, so that the test component moves and rotates along the axial direction of the output shaft of the first motor. As the speed of the first motor increases, the centrifugal force on the simulated block gradually increases. When the centrifugal force exceeds the limiting force applied by the limiting part, the simulated block moves along the slot towards the inner wall of the protective cover and collides, thereby simulating the scenario of random tool breakage in actual production. The tester can test the impact resistance of the tool based on the damage to the inner wall of the protective cover.

[0015] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0016] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure provided for an embodiment of the present utility model;

[0020] Figure 3 This is a partial cross-sectional view of the telescopic component provided in an embodiment of the present utility model;

[0021] Figure 4 A schematic diagram of the test component structure provided in an embodiment of this utility model;

[0022] Figure 5 This is a partially enlarged structural schematic diagram of embodiment A of the present utility model;

[0023] Figure 6 A schematic diagram of the limiter structure provided in an embodiment of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Base; 11. First motor; 21. First protective plate; 22. Second protective plate; 23. Slide rail; 3. Telescopic assembly; 31. Rotating shaft; 32. Telescopic shaft; 33. Chuck; 34. Locking block; 36. Screw; 37. Traction part; 38. Slot; 4. Test assembly; 41. Disc; 42. Groove; 43. Simulation block; 5. Limiting part; 51. Baffle; 52. Connecting rod; 53. Slide rod; 54. Fixing plate; 55. Positioning rod; 56. Compression spring; 57. Clearance groove; 6. Protective cover; Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0027] Please see Figure 1-6A smart CNC machine tool testing fixture includes a base 1, on which a motor is fixedly mounted. A fixing component for fixing a protective cover 6 is also mounted on the base 1. A telescopic component 3 is connected to the output shaft of the motor, and a testing component 4 is connected to the telescopic component 3. The testing component 4 includes a disc 41 mounted on the telescopic component 3. The disc 41 has multiple slots 42, each arranged radially along the disc 41 and slidably connected to a simulation block 43. The disc 41 also has multiple limiting parts 5 corresponding to each slot 42, which restrict the corresponding simulation block 43 within the slot 42.

[0028] The simulation block 43 is used to simulate a cutting tool, and its end is pointed.

[0029] Furthermore, the limiting part 5 includes limiters symmetrically arranged on both sides of the slot 42. Each limiter includes a baffle 51 rotatably mounted on the disk 41. Connecting rods 52 are rotatably connected to both sides of the baffle 51, and sliding rods 53 are rotatably connected to the ends of the connecting rods 52. The sliding rods 53 are slidably connected to the disk 41, and the ends of both sliding rods 53 are connected to the elastic part. The baffle 51 is adapted to the tip of the simulation block 43 and restricts the movement of the simulation block 43 under the action of the elastic part.

[0030] See appendix Figure 4 and 5 The disk 41 is provided with a clearance groove 57 that is adapted to the baffle 51, so that after the simulation block 43 pushes the baffle 51 to rotate, the baffle 51 rotates into the clearance groove 57 and does not interfere with the movement of the simulation block 43.

[0031] Furthermore, the elastic part includes a fixed plate 54 slidably connected to the disk 41. The fixed plate 54 is fixedly connected to two sliding rods 53 on both sides. A positioning rod 55 is fixedly provided on the fixed plate 54. The positioning rod 55 is slidably connected to the disk 41 and a compression spring 56 passes through its outer side. The compression spring 56 is located between the fixed rod and the disk 41.

[0032] The compression spring 56 causes the fixed plate 54 to move toward the center of the disk 41. The movement of the fixed plate 54 causes the slide rod 53 to move along the disk 41. The movement of the slide rod 53 causes the connecting rod 52 to move, so that the baffle 51 abuts against the tip of the simulation block 43.

[0033] Furthermore, the spring constants of the compression springs 56 corresponding to the multiple limiting parts 5 are different. That is, the spring constants of the compression springs 56 in different limiting parts 5 are different, while the spring constants of the two compression springs 56 in the same limiting part 5 are the same. The different spring constants of the compression springs 56 result in different magnitudes of the limiting force applied to the simulation block 43. When the centrifugal force of the disk 41 increases further, the simulation block 43 can overcome a larger limiting force and fly out from the slot 42. At this time, the simulation block 43 has a greater speed. Therefore, the simulation block 43 can simulate different flying speeds of the tool based on the random position of the tool, further improving the accuracy of the impact resistance of the protective cover 6.

[0034] Furthermore, the fixing component includes a first protective plate 21 and a second protective plate 22 fixedly connected to the base 1. The base 1 is also fixedly provided with a slide rail 23 adapted to the protective cover 6. The telescopic component 3 and the test component 4 are both disposed inside the first protective plate 21 and the second protective plate 22.

[0035] Furthermore, the telescopic assembly 3 includes a rotating shaft 31 fixedly connected to the output shaft of the first motor 11, the rotating shaft 31 being rotatably connected to the first protective plate 21, a telescopic shaft 32 being slidably connected inside the rotating shaft 31, the telescopic shaft 32 being coaxially arranged with the rotating shaft 31, the end of the telescopic shaft 32 being fixedly connected to the disc 41, one side of the telescopic shaft 32 being connected to the driver, and the other end being fixedly provided with a chuck 33, the chuck 33 being slidably connected to the locking block 34 on the inner wall of the rotating shaft 31.

[0036] The first motor 11 drives the rotating shaft 31 to rotate, see appendix. Figure 3 The rotation of the rotating shaft 31 drives the locking block 34 to rotate. The rotation of the locking block 34 drives the telescopic shaft 32 to rotate through the chuck 33. The driver drives the telescopic shaft 32 to move along the axial direction of the rotating shaft 31, so that while the telescopic shaft 32 drives the disk 41 to rotate, it can also drive the disk 41 to move along the axial direction of the rotating shaft 31.

[0037] Furthermore, the driver includes a second motor, and a screw 36 is fixedly connected to the output end of the second motor. The screw 36 is rotatably connected to the base 1. A traction part 37 is threadedly connected to the screw 36. One end of the traction part 37 is slidably connected to the base 1, and the other end is rotatably connected to the slot 38 on the telescopic shaft 32.

[0038] The second motor is located inside the base 1 and is not shown in the figure. The second motor drives the screw 36 to rotate, and the rotation of the screw 36 drives the traction part 37 to move along the base 1. The movement of the traction part 37 drives the telescopic shaft 32 to move through the slot 38.

[0039] Working principle: The protective cover 6 is placed between the first protective plate 21 and the second protective plate 22, and abuts against the sliding cabinet; the first motor 11 rotates, driving the rotating shaft 31 to rotate, the rotating shaft 31 drives the locking block 34 to rotate, the locking block 34 drives the telescopic shaft 32 to rotate through the chuck 33, the driver drives the telescopic shaft 32 to move along the axial direction of the rotating shaft 31, so that the telescopic shaft 32 drives the disc 41 to rotate while simultaneously driving the disc 41 to move along the axial direction of the rotating shaft 31; the rotation of the disc 41 drives the rotation of each simulation block 43, and as the speed of the first motor 11 increases... As the pressure increases, the centrifugal force on each simulation block 43 also increases. When the centrifugal force exceeds the limiting force applied by the baffle 51 (at this time, the baffle 51 rotates, causing the connecting rod 52 to move, and the moving connecting rod 52 drives the fixed plate 54 to move through the slide rod 53 to further compress the compression spring 56), the simulation block 43 flies away from the disk 41 along the slot 42 to simulate different positions of the flying tool; and because the elastic coefficients of each compression spring 56 are different, the centrifugal force of the simulation block 43 overcoming the limiting force of the baffle 51 is also different, thus simulating different flying speeds of the tool, thereby effectively testing the impact resistance performance of the protective cover 6.

[0040] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An intelligent numerical control machine tool test tool, comprising a base (1), a first motor (11) is fixedly arranged on the base (1), characterized in that: The base (1) is provided with a fixing component for fixing the protective cover (6), and the output shaft of the first motor (11) is connected to a telescopic component (3). The telescopic component (3) is connected to a test component (4). The test component (4) includes a disc (41) set on the telescopic component (3). The disc (41) has multiple slots (42) opened on it. Each slot (42) is arranged along the radial direction of the disc (41) and is slidably connected to a simulation block (43). The disc (41) is also provided with multiple limiting parts (5) that correspond one-to-one with the slots (42). The limiting parts (5) are used to restrict the corresponding simulation block (43) within the slot (42).

2. The intelligent numerical control machine tool test tool according to claim 1, wherein, The limiting part (5) includes limiters symmetrically arranged on both sides of the slot (42). The limiters include baffles (51) rotatably arranged on the disc (41). Connecting rods (52) are rotatably connected to both sides of the baffles (51). Slide rods (53) are rotatably connected to the ends of the connecting rods (52). The slide rods (53) are slidably connected to the disc (41). The ends of the two slide rods (53) are connected to the elastic part.

3. The intelligent numerical control machine tool test tool of claim 2, wherein, The elastic part includes a fixed plate (54) slidably connected to the disc (41). The fixed plate (54) is fixedly connected to two sliding rods (53) on both sides. A positioning rod (55) is fixedly provided on the fixed plate (54). The positioning rod (55) is slidably connected to the disc (41) and a compression spring (56) is provided on its outer side. The compression spring (56) is provided between the fixed rod and the disc (41).

4. The intelligent numerical control machine tool test tool of claim 3, wherein, The elastic constants of the compression springs (56) corresponding to the multiple limiting parts (5) are different.

5. The intelligent numerical control machine tool test tool of claim 1, wherein, The fixing components include a first protective plate (21) and a second protective plate (22) fixedly connected to the base (1). The base (1) is also fixedly provided with a slide rail (23) adapted to the protective cover (6). The telescopic component (3) and the test component (4) are both located inside the first protective plate (21) and the second protective plate (22).

6. The intelligent numerical control machine tool test tool of claim 5, wherein, The telescopic assembly (3) includes a rotating shaft (31) fixedly connected to the output shaft of the first motor (11). The rotating shaft (31) is rotatably connected to the first protective plate (21). A telescopic shaft (32) is slidably connected inside the rotating shaft (31). The telescopic shaft (32) and the rotating shaft (31) are coaxially arranged. The end of the telescopic shaft (32) is fixedly connected to the disc (41). One side of the telescopic shaft (32) is connected to the driver, and the other end is fixedly provided with a chuck (33). The chuck (33) is slidably connected to the locking block (34) on the inner wall of the rotating shaft (31).

7. The intelligent numerical control machine tool test tool of claim 6, wherein, The driver includes a second motor, and a screw (36) is fixedly connected to the output end of the second motor. The screw (36) is rotatably connected to the base (1). A traction part (37) is threadedly connected to the screw (36). One end of the traction part (37) is slidably connected to the base (1), and the other end is rotatably connected to the slot (38) on the telescopic shaft (32).

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