Ball milling device for coating on test piece

Abstract

The utility model discloses a ball milling device for a coating on a test piece, and relates to the technical field of ball milling of the coating on the test piece, the ball milling device comprises a base plate, a tooling mechanism for tooling and fixing the test piece and a supporting mechanism for supporting a steel ball are arranged on the base plate, and the tooling mechanism comprises a feed screw nut pair which is obliquely arranged. An upper strip-shaped block and a lower strip-shaped block are fixedly arranged on the right end face of a sliding table of the lead screw nut pair, the threaded rod is in threaded connection with a pressing block, a first spigot is formed in the inner end face of the pressing block, and a second spigot is formed in the inner end face of the lower strip-shaped block. A guide rod parallel to the threaded rod slidably penetrates through the pressing block, and the upper end and the lower end of the guide rod are fixedly arranged on the upper strip-shaped block and the lower strip-shaped block respectively. The beneficial effects of the utility model are that no burr is generated on the outer edges of the top ports of the pit A and the pit B, and the coating thickness measurement precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coatings on ball mill test pieces, in particular to a ball mill device for coatings on test pieces. Background Art

[0002] After a batch of saw blades are produced in the workshop, workers put the test pieces and a batch of saw blades into an ion vacuum coating furnace, and a coating is deposited on the surfaces of the test pieces and each saw blade through the ion vacuum coating furnace. Among them, the functions of the coating on the saw blade are: 1. Increase the oxidation resistance of the saw blade. 2. Increase the mechanical strength of the saw blade. The structure of the test piece 1 with the coating 2 is as Figures 1 to 2 shown.

[0003] By measuring the thickness of the coating 2 on the test piece 1, workers can indirectly know the thickness of the coating on the saw blade [because the test piece 1 and the saw blade are sputtered under the same process conditions, so the thickness of the coating 2 on the test piece 1 is equal to the thickness of the coating on the saw blade], and then judge whether the thickness of the coating on the saw blade meets the requirements.

[0004] The specific method for workers to measure the thickness of the coating 2 on the test piece 1 is as follows:

[0005] S1. Take the test piece 1 with the coating 2 out of the ion vacuum coating furnace, and use the grinding rod of the grinding machine to grind a region on the coating 2 of the test piece 1 to grind out a concave pit A3 in the coating 2 that can just see the top surface of the test piece 1, as Figure 3 shown;

[0006] S2. Measure the vertical distance between the bottom of the concave pit A3 and the top surface of the coating 2 through a measuring instrument, and this distance is the thickness A of the coating 2 on the test piece 1;

[0007] S3. Use the grinding help of the grinding machine to grind another region on the coating 2 of the test piece 1 to grind out a concave pit B4 in the coating 2 that can just see the top surface of the test piece 1, as Figure 4 shown;

[0008] S4. Measure the vertical distance between the bottom of the concave pit B4 and the top surface of the coating 2 through a measuring instrument, and this distance is the thickness B of the coating 2 on the test piece 1;

[0009] S5. Calculate the average value of the thickness A and the thickness B, and this average value is the thickness of the coating 2 on the test piece 1, and then know the thickness of the coating on the saw blade.

[0010] However, although this method can measure the thickness of the coating on the test piece 1, there are still the following technical defects:

[0011] When the grinding rod of the grinding machine grinds out the pits A3 and B4 on the coating 2 of the test piece 1, burrs are generated on the outer edges of the top ports of the pits A3 and B4. These burrs will affect the ranging accuracy of the measuring instrument, resulting in inaccurate thickness A and thickness B measured, and then inaccurate average value calculated, and further inaccurate measurement of the thickness of the coating 2 on the test piece 1.

[0012] Therefore, there is an urgent need for a ball milling device that will not generate burrs on the outer edges of the top ports of the pits A and B and improve the measurement accuracy of the coating thickness. Summary of the Utility Model

[0013] The purpose of the present utility model is to overcome the shortcomings of the prior art and provide a ball milling device for the coating on a test piece that will not generate burrs on the outer edges of the top ports of the pits A and B and improve the measurement accuracy of the coating thickness.

[0014] The purpose of the present utility model is achieved through the following technical solutions: A ball milling device for the coating on a test piece, which includes a backing plate, on which a tooling mechanism for fixing the test piece by tooling and a supporting mechanism for supporting steel balls are provided. The tooling mechanism includes an inclined lead screw nut pair. On the right end face of the slide of the lead screw nut pair, an upper strip block and a lower strip block are fixedly provided. A threaded rod is rotatably installed between the upper strip block and the lower strip block. A pressing block is threadedly connected to the threaded rod. A first stop is provided on the inner end face of the pressing block, and a second stop is provided on the inner end face of the lower strip block. The second stop and the first stop are vertically opposite to each other; A guide rod parallel to the threaded rod slidably penetrates through the pressing block, and the upper and lower ends of the guide rod are respectively fixedly provided on the upper strip block and the lower strip block;

[0015] The supporting mechanism includes a front vertical plate and a rear vertical plate fixedly provided on the backing plate. A main shaft is rotatably installed between the front vertical plate and the rear vertical plate. An annular groove is provided on the column surface of the main shaft, and the annular groove is horizontally opposite to the area enclosed by the first stop and the second stop; A driving motor is fixedly provided on the rear end face of the front vertical plate, and the output shaft of the driving motor is connected to the rear end of the main shaft.

[0016] The top of the threaded rod is fixedly connected with a knob.

[0017] A guide hole is provided in the pressing block, and the guide rod slidably penetrates through the guide hole.

[0018] A connecting frame is fixedly provided on the bottom surface of the inclined plate of the lead screw nut pair, and the connecting frame is fixedly provided on the backing plate.

[0019] The upper strip block and the lower strip block are parallel to each other.

[0020] The front vertical plate and the rear vertical plate are parallel to each other.

[0021] The utility model has the following advantages: no burrs will be generated on the outer edges of the top ports of the pits A and B, and the measurement accuracy of the coating thickness is improved. Description of the Drawings

[0022] Figure 1 It is a structural view of a test piece plated with a coating;

[0023] Figure 2 is Figure 1 top view of;

[0024] Figure 3 It is a schematic diagram of grinding a pit A in the coating just visible to the top surface of the test piece;

[0025] Figure 4 It is a schematic diagram of grinding a pit B in the coating just visible to the top surface of the test piece;

[0026] Figure 5 It is a schematic structural view of the utility model;

[0027] Figure 6 is Figure 5 view in the direction A of;

[0028] Figure 7 It is a schematic structural view of the tooling mechanism;

[0029] Figure 8 is Figure 7 view in the direction B of;

[0030] Figure 9 It is a schematic structural view of the screw-nut pair;

[0031] Figure 10 It is a schematic structural view of the lower strip block;

[0032] Figure 11 It is a schematic structural view of the pressing block;

[0033] Figure 12 It is a schematic structural view of the support mechanism;

[0034] Figure 13 is Figure 12 view in the direction C of;

[0035] Figure 14 It is a schematic diagram of tooling and fixing the test piece;

[0036] Figure 15 is Figure 14 view in the direction D of;

[0037] Figure 16 It is a schematic diagram of placing a steel ball in the annular groove;

[0038] Figure 17 is Figure 16 the schematic diagram in the E direction;

[0039] In the figure:

[0040] 1 - test piece, 2 - coating, 3 - pit A, 4 - pit B;

[0041] 5 - backing plate, 6 - support mechanism, 7 - lead screw nut pair, 8 - slide table, 9 - upper strip block, 10 - lower strip block, 11 - threaded rod, 12 - pressing block, 13 - first rabbet, 14 - second rabbet, 15 - guide rod;

[0042] 16 - front vertical plate, 17 - rear vertical plate, 18 - main shaft, 19 - annular groove, 20 - drive motor, 21 - knob, 22 - steel ball, 23 - connecting frame, 24 - lead screw. Specific implementation mode

[0043] The following further describes the present utility model in conjunction with the attached drawings. The protection scope of the present utility model is not limited to the following:

[0044] As Figures 5 to 13 shown, a ball milling device for a coating on a test piece includes a backing plate 5. A tooling mechanism for fixing the test piece 1 by tooling and a support mechanism 6 for supporting steel balls are arranged on the backing plate 5. The tooling mechanism includes an inclined lead screw nut pair 7. An upper strip block 9 and a lower strip block 10 are fixedly arranged on the right end surface of the slide table 8 of the lead screw nut pair 7. The upper strip block 9 and the lower strip block 10 are parallel to each other. A threaded rod 11 is rotatably installed between the upper strip block 9 and the lower strip block 10. A knob 21 is fixedly connected to the top of the threaded rod 11. A pressing block 12 is threadedly connected to the threaded rod 11. A first rabbet 13 is opened on the inner end surface of the pressing block 12. A second rabbet 14 is opened on the inner end surface of the lower strip block 10. The second rabbet 14 and the first rabbet 13 are opposed to each other vertically; A guide rod 15 parallel to the threaded rod 11 is slidably penetrated through the pressing block 12. The upper and lower ends of the guide rod 15 are respectively fixedly arranged on the upper strip block 9 and the lower strip block 10.

[0045] The support mechanism 6 includes a front vertical plate 16 and a rear vertical plate 17 fixedly arranged on the backing plate 5. The front vertical plate 16 and the rear vertical plate 17 are parallel to each other. A main shaft 18 is rotatably installed between the front vertical plate 16 and the rear vertical plate 17. An annular groove 19 is opened on the column surface of the main shaft 18. The annular groove 19 is opposed to the area surrounded by the first rabbet 13 and the second rabbet 14 left and right; A drive motor 20 is fixedly arranged on the rear end surface of the front vertical plate 16. The output shaft of the drive motor 20 is connected to the rear end of the main shaft 18.

[0046] A guide hole is opened in the pressing block 12, and the guide rod 15 slidably penetrates through the guide hole. A connecting frame 23 is fixedly arranged on the bottom surface of the inclined plate of the lead screw nut pair 7, and the connecting frame 23 is fixedly arranged on the backing plate 5.

[0047] The working process of the present utility model is as follows:

[0048] S1. Fixturing the test piece 1 on the tooling: First, the worker places the lower edge of the test piece 1 coated with the coating 2 into the second stop 14 of the lower strip 10; then the worker tightens the knob 21, and the knob 21 drives the threaded rod 11 to rotate. Under the threaded fit between the pressing block 12 and the threaded rod 11, the pressing block 12 moves along the threaded rod 11 towards the test piece 1 until the test piece 1 is clamped and fixed between the first stop 13 of the pressing block 12 and the second stop 14 of the lower strip 10, thus realizing the fixture of the test piece 1 on the tooling. As shown in, at this time, the coating 2 on the test piece 1 just faces the annular groove 19 on the main shaft 18; Figures 14 to 15 shown, at this time, the coating 2 on the test piece 1 just faces the annular groove 19 on the main shaft 18;

[0049] S2. The worker places a steel ball 22 in the annular groove 19, as shown in, so that the steel ball 22 is supported on the bottom of the annular groove 19. At the same time, the steel ball 22 abuts against the coating 2 of the test piece 1; then the worker drops a certain amount of abrasive on the top surface of the steel ball 22; Figures 16 to 17 shown, so that the steel ball 22 is supported on the bottom of the annular groove 19. At the same time, the steel ball 22 abuts against the coating 2 of the test piece 1; then the worker drops a certain amount of abrasive on the top surface of the steel ball 22;

[0050] S3. The worker turns on the drive motor 20, and the drive motor 20 drives the main shaft 18 to rotate. The main shaft 18 drives the steel ball 22 to rotate synchronously. The rotation direction of the steel ball 22 is as shown by the arrow in. The rotating steel ball 22 grinds on the stationary coating 2. When the grinding reaches the set time, the drive motor 20 is controlled to turn off, so as to grind a concave pit A3 in the coating 2 that can just see the top surface of the test piece 1, as shown in; Figure 16 shown by the arrow in. The rotating steel ball 22 grinds on the stationary coating 2. When the grinding reaches the set time, the drive motor 20 is controlled to turn off, so as to grind a concave pit A3 in the coating 2 that can just see the top surface of the test piece 1, as shown in; Figure 3 shown;

[0051] S4. The worker removes the steel ball 22; then the worker loosens the knob 21, and the knob 21 drives the threaded rod 11 to rotate in the reverse direction. The pressing block 12 moves upward along the threaded rod 11, and the worker removes the test piece 1 from between the first stop 13 and the second stop 14; the worker measures the vertical distance between the bottom of the concave pit A3 and the top surface of the coating 2 with a measuring instrument, and this distance is the thickness A of the coating 2 on the test piece 1;

[0052] S5. The worker turns the screw rod 24 of the screw rod nut pair 7 to make the sliding table 8 move downward. The sliding table 8 drives the upper strip 9, the lower strip 10 and the pressing block 12 thereon to move downward synchronously. When the sliding table 8 moves downward a certain distance, the worker stops turning the screw rod 24;

[0053] S6. The worker repeats the operations of steps S1 to S3 to grind a concave pit B4 in the coating 2 that can just see the top surface of the test piece 1, as shown in; Figure 4 shown;

[0054] S7. The worker removes the test piece 1 and measures the vertical distance between the bottom of the pit B4 and the top surface of the coating 2 with a measuring instrument. This distance is the thickness B of the coating 2 on the test piece 1.

[0055] S8. Calculate the average value of the thickness A and the thickness B. This average value is the thickness of the coating 2 on the test piece 1, and thus the thickness of the coating on the saw blade can be obtained.

[0056] Among them, it can be seen from steps S2 - S4 and steps S6 - S7 that this ball milling device grinds the pits A3 and pits B4 on the coating 2 of the test piece 1 by the steel balls 22 in a rotating state. The grinding process is gradual and the grinding force is small, so that burrs will not be generated on the outer edges of the top ports of the pits A3 and pits B4. Thus, it can be known that compared with using a grinding rod of a grinding machine to grind the pits A3 and pits B4 in the coating 2, since there is no interference of burrs, it is ensured that both the thickness A and the thickness B measured by the measuring instrument are accurate, and further ensured that the calculated average value is accurate, thereby greatly improving the measurement accuracy of the thickness of the coating 2 on the test piece 1.

[0057] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, 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 ball milling device for testing coatings on a chip, characterized in that: It includes a backing plate (5), on which there are a tooling mechanism for fixing the test piece (1) by tooling and a supporting mechanism (6) for supporting steel balls. The tooling mechanism includes an inclined lead screw nut pair (7). On the right end face of the slide (8) of the lead screw nut pair (7), there are fixedly arranged an upper strip block (9) and a lower strip block (10). Between the upper strip block (9) and the lower strip block (10), there is a rotating threaded rod (11) installed. A pressing block (12) is threadedly connected to the threaded rod (11). On the inner end face of the pressing block (12), there is a first rabbet (13) opened. On the inner end face of the lower strip block (10), there is a second rabbet (14) opened. The second rabbet (14) and the first rabbet (13) are vertically opposed to each other; A guide rod (15) parallel to the threaded rod (11) slidably penetrates through the pressing block (12). The upper and lower ends of the guide rod (15) are respectively fixedly arranged on the upper strip block (9) and the lower strip block (10); The supporting mechanism (6) includes a front vertical plate (16) and a rear vertical plate (17) fixedly arranged on the backing plate (5). Between the front vertical plate (16) and the rear vertical plate (17), there is a main shaft (18) rotatably installed. On the cylindrical surface of the main shaft (18), there is an annular groove (19) opened. The annular groove (19) is horizontally opposed to the area surrounded by the first rabbet (13) and the second rabbet (14); On the rear end face of the front vertical plate (16), there is a driving motor (20) fixedly arranged. The output shaft of the driving motor (20) is connected to the rear end of the main shaft (18).

2. The ball milling device for testing the coating on the chip according to claim 1, wherein: The top of the threaded rod (11) is fixedly connected with a knob (21).

3. The ball milling device for testing the coating on the chip according to claim 1, characterized in that: A guide hole is opened in the pressing block (12), and the guide rod (15) slidably penetrates through the guide hole.

4. A ball milling device for testing a coating on a chip, characterized in that: On the bottom surface of the inclined plate of the lead screw nut pair (7), there is a connecting frame (23) fixedly arranged, and the connecting frame (23) is fixedly arranged on the backing plate (5).

5. A ball milling device for testing a coating on a chip, characterized in that: The upper strip block (9) and the lower strip block (10) are parallel to each other.

6. The ball milling device for testing the coating on the chip according to claim 1, characterized in that: The front vertical plate (16) and the rear vertical plate (17) are parallel to each other.

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