Device for automatically polishing A-method sample

Abstract

The utility model discloses a device for automatically polishing a sample by an A method, which comprises a protective cover internally provided with at least one group of tip and tailstock for fixing the sample, and is characterized in that: a head sample holder is arranged outside the sample and is connected with a reciprocating component; the head sample holder can wrap the peripheral surface of the sample, a polishing tool is arranged on the head sample holder, the polishing tool is driven by the reciprocating motion assembly to automatically reciprocate so as to polish the sample, a material is fixed in a wrapping mode, and the polishing tool is driven by the reciprocating motion assembly to automatically reciprocate so as to polish the sample. And a high-speed reciprocating motion mode is adopted for polishing, so that the polishing efficiency is improved, and meanwhile, the polishing is more uniform.

Description

Technical Field

[0001] The utility model relates to the technical field of polishing devices, and specifically, to a device for automatically polishing A-method specimens. Background Technique

[0002] Currently, in the fields of materials science and industrial manufacturing, the polishing treatment of specimens is an important link to obtain a high-quality material surface and conduct accurate performance tests. However, the current devices for automatically polishing A-method specimens face a series of challenges in technology and practical applications, which directly affect the processing efficiency and surface quality of the specimens, and thus have an adverse impact on the true performance test results of the materials and the subsequent product factory and scientific research work.

[0003] After retrieval, it is found that the Chinese utility model patent with the authorization announcement number of CN208231518U discloses a semi-automatic polishing device for shaft parts. It uses linear guides to achieve precise sliding of the moving platform, cooperates with the first and second brackets and the pressing plate to clamp the parts, and the gear-rack walking mechanism drives the polishing mechanism to operate on the moving platform to achieve efficient and low-cost polishing treatment of the surfaces of shaft parts with different outer diameters. However, the mobile polishing of materials by this patent through the gear-rack method has low efficiency. After long-term polishing, pits often appear on the surface of the specimens, and each time only part of the material can be polished, resulting in unevenness. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to overcome the defects in the prior art, fix the material in a wrapped form, and use a high-speed reciprocating motion method for polishing, so as to improve the polishing efficiency and make the polishing more uniform while improving the polishing efficiency.

[0005] To solve the above technical problem, the technical solution of the utility model is a device for automatically polishing A-method specimens, including a protective cover. At least one set of center tips and tailstocks for fixing specimens is arranged inside the protective cover. It is characterized in that: a head specimen holder is arranged outside the specimen, the head specimen holder is connected with a reciprocating motion assembly, the head specimen holder can wrap the outer peripheral surface of the specimen, a polishing tool is arranged on the head specimen holder, and the polishing tool is adapted to automatically reciprocate under the drive of the reciprocating motion assembly to polish the specimen.

[0006] Further, a variable-frequency motor is installed inside the protective cover, the inside of the protective cover is connected with a spindle box, and the output shaft of the variable-frequency motor extends into the inside of the spindle box to drive the center tip and the specimen to rotate.

[0007] Furthermore, the reciprocating motion assembly includes a driving motor installed inside the protective cover. The output end of the driving motor is fixedly connected to a turntable through a coupling. One end of the turntable is movably hinged to an eccentrically arranged connecting rod. One end of the connecting rod is movably hinged to a movable block. One end of the movable block is fixedly connected to a placement plate. The head specimen holder is connected to the top of the placement plate. A limiting assembly is arranged inside the protective cover, and the limiting assembly is adapted to limit the placement plate during reciprocating motion.

[0008] Furthermore, the limiting assembly includes a limiting plate fixedly connected inside the protective cover. A limiting groove is formed inside the limiting plate. A clamping block is connected to one side of the movable block, and the clamping block is slidably connected inside the limiting groove.

[0009] Furthermore, the head specimen holder includes a fixed block. Two arc-shaped pressing plates are movably hinged inside the fixed block. The two arc-shaped pressing plates are used to fix the specimen, and the polishing tool is arranged inside the arc-shaped pressing plates.

[0010] Furthermore, a threaded hole penetrating through itself is formed in one of the arc-shaped pressing plates, and a U-shaped groove penetrating through itself is formed in the other arc-shaped pressing plate. A bolt can pass through between the threaded hole and the U-shaped groove for fixation.

[0011] Furthermore, the polishing tool is a fixed sandpaper or polishing cloth.

[0012] Furthermore, at least one cooling device is arranged on the top of the headstock. The cooling device corresponds to the center point, and the cooling device is adapted to cool the specimen polishing.

[0013] Furthermore, the bottom of the protective cover is connected to support feet, and a tray is connected to the support feet. The tray is adapted to collect the polished debris.

[0014] Furthermore, the reciprocating motion assembly includes a driving bevel gear fixedly sleeved on the outer circumferential surface of the center point. The turntable is arranged as a bevel gear. The driving bevel gear meshes with the turntable. The center point is adapted to drive the head specimen holder to reciprocate, and the head specimen holder is adapted to polish the specimen.

[0015] With the above technical solutions, the present utility model has the following beneficial effects:

[0016] 1. By adopting an automated setting, the reciprocating motion of the head specimen holder is used to perform high-speed reciprocating polishing on the specimen, improving the overall working efficiency.

[0017] 2. While reciprocating polishing, the rotation of the sample is achieved through the setting of a variable-frequency motor. While rotating, the sample is reciprocally polished to ensure that the overall polishing effect of the sample is more uniform.

[0018] 3. The head sample holder used to directly contact the sample adopts a clamping type setting, which can adapt to samples of different sizes and is more flexible to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall device of the present utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the working part of the present utility model;

[0021] Figure 3 It is a schematic block diagram of the structure of the head sample holder of the present utility model;

[0022] Figure 4 It is of the present utility model Figure 2 The enlarged view at position A in;

[0023] Figure 5 It is of the present utility model Figure 2 The enlarged view at position B in.

[0024] In the figure: 1. Protective cover; 2. Variable-frequency motor; 3. Driving motor; 4. Headstock; 5. Center point; 6. Slide rail; 7. Tailstock; 8. Turntable; 9. Connecting rod; 10. Movable block; 11. Limit plate; 12. Clamping block; 13. Placing plate; 14. Sample;

[0025] 15. Head sample holder; 151. Fixed block; 152. Arc-shaped pressing plate; 153. Polishing tool;

[0026] 16. Support feet; 17. Tray; 18. Cooling device. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] In order to make the content of the present utility model easier to be clearly understood, the present utility model will be further described in detail below according to specific embodiments and in conjunction with the drawings.

[0028] Embodiment 1

[0029] As Figures 1-4As shown in the figure, a device for automatic polishing of A-method specimens includes a protective cover 1. Inside the protective cover 1, there is at least one set of centers 5 and a tailstock 7 for fixing the specimen 14. It is characterized in that: an outer head specimen holder 15 is provided outside the specimen 14. The head specimen holder 15 is connected with a reciprocating motion assembly. The head specimen holder 15 can wrap around the outer peripheral surface of the specimen 14. A polishing tool 153 is provided on the head specimen holder 15. Driven by the reciprocating motion assembly, the polishing tool 153 is adapted to automatically reciprocate to polish the specimen 14.

[0030] As Figure 1 shown in the figure, a variable-frequency motor 2 is installed inside the protective cover 1. The inside of the protective cover 1 is connected with a headstock 4. The output shaft of the variable-frequency motor 2 extends into the inside of the headstock 4 to drive the center 5 and the specimen 14 to rotate.

[0031] As Figure 2 、 Figure 4 shown in the figure, the reciprocating motion assembly includes a driving motor 3. The driving motor 3 is installed inside the protective cover 1. The output end of the driving motor 3 is fixedly connected with a turntable 8 through a coupling. One end of the turntable 8 is movably hinged with an eccentrically arranged connecting rod 9. One end of the connecting rod 9 is movably hinged with a movable block 10. One end of the movable block 10 is fixedly connected with a placement plate 13. The head specimen holder 15 is connected to the top of the placement plate 13. A limiting assembly is provided inside the protective cover 1. The limiting assembly is adapted to limit the placement plate 13 during reciprocating motion.

[0032] As Figure 4 shown in the figure, the limiting assembly includes a limiting plate 11. The limiting plate 11 is fixedly connected inside the protective cover 1. A limiting groove is opened inside the limiting plate 11. A clamping block 12 is connected to one side of the movable block 10. The clamping block 12 is slidably connected inside the limiting groove.

[0033] As Figure 3 shown in the figure, the head specimen holder 15 includes a fixed block 151. Two arc-shaped pressing plates 152 are movably hinged inside the fixed block 151. The two arc-shaped pressing plates 152 are used to fix the specimen 14. The polishing tool 153 is arranged inside the arc-shaped pressing plates 152.

[0034] As Figure 3 shown in the figure, a threaded hole penetrating itself is opened on one of the arc-shaped pressing plates 152, and a U-shaped groove penetrating itself is opened on the other arc-shaped pressing plate 152. A bolt can pass through between the threaded hole and the U-shaped groove for fixation.

[0035] As Figure 3 shown in the figure, the polishing tool 153 is a fixed abrasive paper or polishing cloth.

[0036] As Figure 2As shown, at least one cooling device 18 is provided at the top of the headstock 4. The cooling device 18 corresponds to the center point 5, and the cooling device 18 is adapted to cool the specimen 14 during polishing.

[0037] As Figure 1 As shown, support feet 16 are connected to the bottom of the protective cover 1, and a tray 17 is connected to the support feet 16. The tray 17 is adapted to collect the debris after polishing.

[0038] The working principle of this embodiment is as follows:

[0039] One end of the specimen 14 is abutted against the end of the center point 5, and the tailstock 7 is adjusted to abut against the other end of the specimen 14, so as to fix the specimen 14. The tailstock 7 can be displaced on the slide rail 6 and fixed by bolts. It should be noted that after the two ends of the specimen 14 are fixed by the center point 5 and the tailstock 7, the specimen 14 can still be driven to rotate by the rotation of the center point 5.

[0040] Before polishing, the head specimen holder 15 needs to be sleeved outside the specimen 14. The polishing tool 153 is in direct contact with the outer peripheral surface of the specimen 14. After being sleeved, the two movable parts of the head specimen holder 15 are connected and fixed by bolts.

[0041] After the preparation work is completed, the variable frequency motor 2 is started to drive the specimen 14 to rotate itself. At the same time, the drive motor 3 is started, and the drive motor 3 drives the turntable 8 to rotate. The connecting rod 9, which is eccentrically arranged on one side of the turntable 8 and is movably hinged, will produce a reciprocating linear displacement effect in the horizontal direction during rotation, thereby driving the reciprocating movement of the movable block 10 and the placing plate 13. Since the movable plate is also connected to the connecting rod 9 in a movable hinge manner, only a linear reciprocating movement is achieved.

[0042] It should be noted that while the placing plate 13 is reciprocating, the clamping block 12 on one side of it will move in the limiting groove inside the limiting plate 11 to ensure the stability of the linear reciprocating movement.

[0043] During the reciprocating movement of the placing plate 13, the head specimen holder 15 provided on its top will be driven to reciprocate together, so as to achieve the effect of reciprocating linear polishing of the outer peripheral surface of the specimen 14. During the reciprocating linear movement, since the specimen 14 is also driven to rotate by the variable frequency motor 2 itself, the overall polishing work efficiency is improved and the polishing uniformity is ensured.

[0044] During polishing, through the setting of the cooling device 18, substances such as coolant in the water tank can be sprayed to the head specimen holder 15 and the specimen 14 through pipelines, so as to avoid problems such as overheating of the specimen 14 during polishing, which may lead to a reduction in polishing quality.

[0045] During polishing, a large amount of abrasive debris will be generated, and the abrasive debris will fall onto the bottom tray 17, facilitating subsequent unified collection and treatment of the abrasive debris.

[0046] Embodiment 2

[0047] This embodiment further includes the following structure on the basis of Embodiment 1: The reciprocating motion assembly includes a driving bevel gear fixedly sleeved on the outer peripheral surface of the center point 5. The turntable 8 is provided as a bevel gear. The driving bevel gear meshes with the turntable 8. The center point 5 is adapted to drive the head specimen holder 15 to reciprocate, and the head specimen holder 15 is adapted to polish the specimen 14.

[0048] The working principle of this embodiment is as follows:

[0049] The turntable 8 is set in the form of a bevel gear, and a bevel gear is also fixedly sleeved on the outer peripheral surface of the center point 5. When the entire reciprocating mechanism is moved to the position where the two bevel gears mesh with each other, only by driving the specimen 14 to rotate by the frequency conversion motor 2 can the rotation of the turntable 8 be realized. After the turntable 8 rotates, it drives the head specimen holder 15 to reciprocally polish the specimen 14. It is not necessary to control through the driving motor 3, and only through the frequency conversion motor 2 can the entire polishing control work be realized.

[0050] In the above specific embodiments, the technical problems solved, technical solutions and beneficial effects of the present invention are further described in detail. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A device for automatic polishing of a sample using the A method, comprising a protective cover (1), wherein the protective cover (1) is provided with at least one set of a top (5) and a tailstock (7) for fixing a sample (14), wherein: A head sample holder (15) is arranged outside the sample (14), and the head sample holder (15) is connected to a reciprocating motion component. The head sample holder (15) can cover the outer peripheral surface of the sample (14). A polishing tool (153) is arranged on the head sample holder (15). The polishing tool (153) is suitable for automatically reciprocating under the drive of the reciprocating motion component to polish the sample (14).

2. The device for automatic polishing of A-method specimens according to claim 1, characterized in that: A variable frequency motor (2) is installed inside the protective cover (1), and the interior of the protective cover (1) is connected to a spindle box (4). The output shaft of the variable frequency motor (2) extends into the interior of the spindle box (4) to drive the center (5) and the sample (14) to rotate.

3. The device for automatic polishing of A-method specimens according to claim 1, characterized in that: The reciprocating motion component comprises a driving motor (3), the driving motor (3) is installed inside the protective cover (1), the output end of the driving motor (3) is fixedly connected to a turntable (8) through a coupling, one end of the turntable (8) is movably hinged with an eccentrically arranged connecting rod (9), one end of the connecting rod (9) is movably hinged with a movable block (10), one end of the movable block (10) is fixedly connected to a placement plate (13), the head sample holder (15) is connected to the top of the placement plate (13), and a limiting component is arranged inside the protective cover (1), the limiting component is suitable for limiting the placement plate (13) during reciprocating motion.

4. The device for automatic polishing of method A specimen according to claim 3, characterized in that: The limiting assembly comprises a limiting plate (11), the limiting plate (11) is fixedly connected to the inside of the protective cover (1), a limiting groove is provided inside the limiting plate (11), a clamping block (12) is connected to one side of the movable block (10), and the clamping block (12) is slidably connected to the inside of the limiting groove.

5. The device for automatic polishing of A-method specimens according to claim 1, characterized in that: The head sample holder (15) comprises a fixing block (151), the fixing block (151) is internally hinged with two arc-shaped pressing plates (152), the two arc-shaped pressing plates (152) are used to fix the sample (14), and the polishing tool (153) is arranged on the inner side of the arc-shaped pressing plates (152).

6. The device for automatic polishing of A-method specimens according to claim 5, characterized in that: One of the arc-shaped pressing plates (152) is provided with a threaded hole penetrating the arc-shaped pressing plate, and the other arc-shaped pressing plate (152) is provided with a U-shaped groove penetrating the arc-shaped pressing plate. Bolts can be passed between the threaded hole and the U-shaped groove for fixing.

7. The device for automatic polishing of A-method specimens according to claim 5, characterized in that: The polishing tool (153) is fixed sandpaper or polishing cloth.

8. The device for automatic polishing of A-method specimens according to claim 2, characterized in that: At least one cooling device (18) is provided on the top of the spindle box (4), the cooling device (18) corresponds to the center (5), and the cooling device (18) is suitable for cooling the polishing of the sample (14).

9. The device for automatic polishing of A-method specimens according to claim 1, characterized in that: The bottom of the protective cover (1) is connected to a supporting foot (16), and the supporting foot (16) is connected to a tray (17), and the tray (17) is suitable for collecting polishing debris.

10. The device for automatic polishing of method A specimen according to claim 3, characterized in that: The reciprocating motion assembly comprises an active bevel gear, which is fixedly sleeved on the outer peripheral surface of the top (5), the turntable (8) is a setting of the bevel gear, the active bevel gear is meshed with the turntable (8), the top (5) is suitable for driving the head sample holder (15) to reciprocate, and the head sample holder (15) is suitable for polishing the sample (14).

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