Coating equipment for hard alloy drill bit

Abstract

The utility model belongs to the field of cutter machining, and particularly relates to coating equipment of a hard alloy drill bit. A pneumatic chuck is rotationally arranged below a top plate of a shell, a movable disc is arranged on the lower end face of the pneumatic chuck in a sliding mode, an elastic partition film is arranged at a lower port of the movable disc, and a polygonal through hole is formed in the elastic partition film; the polygonal through hole can adaptively wrap the drill bit, a plurality of supporting blocks are arranged on the upper end face of the elastic partition film, each supporting block corresponds to one corner of the polygonal through hole, all the supporting blocks synchronously slide and conduct tensile deformation on the polygonal through hole, and a rotating baffle is rotationally arranged below the movable disc. A multi-shaft driving assembly is arranged on one side of the pneumatic chuck and located in the shell, and a spraying machine is arranged at the output end of the multi-shaft driving assembly. According to the drill bit coating device, due to the arrangement of structures such as the elastic partition film and the like, the drill bit is adaptively wrapped and shielded through the elastic partition film which is elastically deformed according to the size of the drill bit, so that the accuracy of the coating part of the drill bit is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tool processing, in particular to a coating device for a carbide drill bit. Background Art

[0002] Coatings sprayed onto the outside of the tool reduce diffusion and chemical reactions between the tool and the workpiece, thereby reducing tool wear and extending tool life. Coated tools offer high surface hardness, good wear resistance, stable chemical properties, heat and oxidation resistance, low friction coefficient, and low thermal conductivity. Compared to uncoated tools, they can increase cutting speed by 20% to 70%, improve machining accuracy by 0.5 to 1 level, and reduce tool consumption by 20% to 50%.

[0003] For example, a coating device for a carbide drill bit disclosed in patent application number CN202022011014.7 includes a workbench, a sprayer body is provided on one side of the workbench, a pneumatic chuck is provided in the middle of the workbench, a motor passing through the workbench and connected to the pneumatic chuck is provided at the bottom of the workbench, a guide rail is provided on the workbench between the sprayer body and the pneumatic chuck, a mounting plate slidably connected is provided on the guide rail, a nozzle corresponding to the pneumatic chuck is provided on the mounting plate, one end of the nozzle passes through the mounting plate and is provided with a flexible tube connected to the sprayer body, a driving mechanism for driving the mounting plate to move horizontally back and forth is provided on the workbench, a protective cover is provided on the periphery of the mounting plate, and an exhaust mechanism corresponding to the protective cover is provided on the other side of the workbench. The utility model uses the protective cover and the exhaust mechanism to coat the drill bit in a relatively closed space, and filters out the emitted coating material through the exhaust mechanism, thereby reducing the pollution caused by the coating material being emitted into the air.

[0004] In the prior art, protective covers and purification components are used to purify the toxic gases generated during drill bit coating, effectively preventing air pollution. However, there are still some shortcomings: First, when spraying a drill bit, the sprayer often only needs to spray part of the drill bit according to actual needs, and the existing spraying equipment cannot cover part of the drill bit, resulting in the inability to accurately control the spraying part of the drill bit, thereby causing the sprayed drill bit to fail to meet the requirements.

[0005] Moreover, when spraying the drill bit, the paint sprayed by the sprayer often splashes to other places in the spraying equipment, making it difficult to clean up later, and affecting the normal operation of the spraying equipment in the long run. Utility Model Content

[0006] To overcome the shortcomings of the prior art, the present invention provides a coating device for carbide drill bits. The present invention utilizes an elastic barrier membrane and other structures to adaptively wrap and shield the drill bit according to its size, thereby improving the accuracy of the coating area on the drill bit. Furthermore, the rotating baffle and other structures not only shield the paint sprayed by the sprayer during the drill bit spraying, but also allow the operator to observe the coating condition of the drill bit through an observation window through the rotation of the baffle.

[0007] The cam is provided with a plurality of sliding doors, each of which is provided with a plurality of supporting blocks, each of which is provided with a plurality of supporting blocks, each of which is provided with a plurality of supporting blocks, each of which is provided with a plurality of supporting blocks, each of which is provided with a plurality of supporting blocks, each of which is provided with a plurality of supporting blocks, each of which is provided with a plurality of supporting blocks, each of which is provided with a plurality of supporting blocks, each of which is provided with a plurality of supporting blocks, each of which is provided with a plurality of supporting blocks, each of which is provided with a plurality of supporting blocks, each of which is provided with a plurality of supporting blocks, each of which is provided with a plurality of supporting blocks,

[0008] Optionally, a toothed disc is provided above the elastic barrier membrane and rotates inside the movable disc. The toothed disc is provided with a plurality of slide grooves. A slider is provided inside each of the slide grooves. A connecting rod is provided between each two adjacent sliders and the support block.

[0009] Optionally, a second motor is provided on the upper end surface of the movable disk, and a first driving gear is provided on the output end of the second motor inside the movable disk, and the first driving gear is meshed and rotationally connected with the gear disk.

[0010] Optionally, a gear ring is provided on the outer side wall of the rotating baffle, a third motor is provided on one side of the movable disk, a second driving gear is provided at the output end of the third motor, and the second driving gear is engaged and rotationally connected with the gear ring.

[0011] Optionally, the multi-axis drive assembly includes a second push cylinder arranged on the outer wall of the shell, the output end of the second push cylinder is provided with a connecting plate inside the shell, the upper end surface of the connecting plate is provided with a third push cylinder, and the output end of the third push cylinder is fixedly connected to the sprayer through the connecting plate.

[0012] Optionally, a paint storage box is provided on the side wall of the shell below the second push cylinder, and a hose is provided to connect the paint storage box to the sprayer.

[0013] Optionally, a collecting trough is provided on the inner bottom surface of the shell below the rotating baffle, a through hole is provided inside the collecting trough, and a collecting frame is provided on the lower end surface of the shell below the through hole.

[0014] Optionally, a slip ring groove is provided on the lower end surface of the movable disk, a slip ring protrusion is slidably provided in the slip ring groove, and the slip ring protrusion is fixedly connected to the rotating baffle.

[0015] Optionally, a plurality of guide grooves are provided on the inner side surface of the rotating baffle.

[0016] In summary, compared with the prior art, the beneficial effects of this solution are:

[0017] (1) The present invention provides an elastic barrier film, a support block, a toothed disc and other structures, so that after the drill bit is fixed on the pneumatic chuck, the drill bit can be adaptively wrapped and shielded according to the specific length requirements of the alloy coating through the elastic barrier film that can be elastically deformed according to the size of the drill bit, thereby improving the accuracy of the coating part of the drill bit, thereby enhancing the practicality and adaptability of the device;

[0018] (2) The utility model arranges the rotating baffle, the gear ring and the second driving gear, etc. so that the rotating baffle can not only block the paint sprayed by the sprayer when the drill is spraying, so that the paint will not splash to other places, but also can enable the operator to observe the coating condition after the drill is sprayed in the equipment through the observation window to see whether it meets the requirements. It not only prevents the paint from contaminating other parts inside the equipment, but also saves the use of paint and reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 A three-dimensional diagram of some parts of the utility model;

[0021] Figure 3 This is the main view of the utility model;

[0022] Figure 4 for Figure 3 A three-dimensional cross-section at AA in the middle;

[0023] Figure 5 for Figure 3 A three-dimensional cross-sectional view of the middle BB;

[0024] Figure 6 It is a three-dimensional diagram of some parts of the utility model;

[0025] Figure 7 for Figure 6 A partial enlarged view of point C in the middle;

[0026] Figure 8 for Figure 4 A partial enlarged view of point D in the middle.

[0027] In the figure: housing 10, sliding door 11, sprayer 12, pneumatic chuck 13, movable disk 14, elastic baffle 15, support block 16, connecting rod 17, geared disk 18, first drive gear 19, rotating baffle 20, gear ring 21, second drive gear 22, guide groove 23, collecting groove 24, through hole 25, collecting frame 26, air purifier 27, first push cylinder 28, first motor 29, second motor 30, third motor 31, second push cylinder 32, third push cylinder 33, hose 34, paint storage box 35, observation window 36, slip ring groove 37, slip ring protrusion 38, slider 39. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0029] Example 1:

[0030] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 As shown, a coating device for a carbide drill bit includes a housing 10. Two sliding doors 11 are provided on one side of the housing 10. A pneumatic chuck 13 is rotatably provided under the top plate of the housing 10. A first motor 29 provides rotational power for the pneumatic chuck 13. A movable disk 14 is slidably provided on the lower end surface of the pneumatic chuck 13. An elastic baffle 15 is provided on the lower end of the movable disk 14. A polygonal through hole 41 is provided inside the elastic baffle 15. A plurality of support blocks 16 are provided on the upper end surface of the elastic baffle 15. Each support block 16 is aligned with the polygonal through hole 41. Corresponding to a corner, a toothed disc 18 is rotatably provided above the elastic baffle membrane 15 and inside the movable disk 14. A plurality of slide grooves 40 are provided on the toothed disc 18. A slider 39 is slidably provided inside each slide groove 40. A connecting rod 17 is connected between every two adjacent sliders 39 and the support block 16. A rotating baffle 20 is rotatably provided below the movable disk 14. A multi-axis drive assembly is provided on one side of the pneumatic chuck 13 inside the housing 10. The output end of the multi-axis drive assembly is connected to a sprayer 12, and an air purifier 27 is provided on the upper end surface of the housing 10.

[0031] Specifically, the elastic barrier membrane 15 is made of elastic material, and the elastic barrier membrane 15 will not generate excessive friction when it is in close contact with metal. The polygonal through hole 41 is polygonal in shape. When the drill bit needs to be installed, the positive rotation of the toothed disc 18 will drive the slider 39 to slide along the slide groove 40. The sliding of the slider 39 drives the multiple support blocks 16 to move through the connecting rod 17, so that the multiple support blocks 16 pull each corner of the polygonal through hole 41 for elastic deformation, increasing the area of ​​the polygonal through hole 41, making it easier for the drill bit to be fixed inside the pneumatic chuck 13 through the polygonal through hole 41. The reverse rotation of the toothed disc 18 makes the side wall of the polygonal through hole 41 in close contact with the outer cylindrical surface of the drill bit, thereby forming a partial shielding of the drill bit.

[0032] By moving the movable plate 14 up and down, the shielding length of the drill bit by the elastic barrier film 15 can be controlled, thereby controlling the coating length of the drill bit.

[0033] The sprayer 12 is a common sprayer, which is a prior art and will not be elaborated in detail in this solution. The sprayer 12 can absorb paint and spray the drill bit.

[0034] Further, such as Figure 2 and Figure 3 As shown, the multi-axis drive assembly includes a second push cylinder 32 arranged on the outer wall of the shell 10, and the output end of the second push cylinder 32 is provided with a connecting plate 42 inside the shell 10, and the upper end surface of the connecting plate 42 is provided with a third push cylinder 33, and the output end of the third push cylinder 33 is fixedly connected to the sprayer 12 through the connecting plate 42.

[0035] Specifically, the second push cylinder 32 and the third push cylinder 33 are both ordinary electric push cylinders, hydraulic push cylinders, etc., which are existing technologies and will not be elaborated in detail in this solution. The output end of the second push cylinder 32 can drive the connecting plate 42 to move horizontally, and the connecting plate 42 drives the sprayer 12 to move horizontally, thereby adjusting the horizontal distance between the sprayer 12 and the drill bit, thereby adapting to the spraying requirements of the drill bit and preventing the spraying distance between the sprayer 12 and the drill bit from being inappropriate, causing the paint sprayed by the sprayer 12 to splash to other parts inside the equipment.

[0036] The output end of the third push cylinder 33 can drive the sprayer 12 to move vertically, thereby adjusting the vertical distance between the sprayer 12 and the drill bit, thereby adapting to the spraying requirements of drill bits of different lengths.

[0037] Further, such as Figure 2 and Figure 3 As shown, a paint storage box 35 is provided on the side wall of the housing 10 below the second push cylinder 32 , and a hose 34 is provided between the paint storage box 35 and the sprayer 12 .

[0038] Specifically, the paint storage box 35 is filled with paint, and the hose 34 is a paint delivery hose. The sprayer 12 absorbs the paint in the paint storage box 35 through the hose 34 .

[0039] Further, such as Figure 6 As shown, a second motor 30 is provided on the upper end surface of the movable disk 14 , and a first driving gear 19 is provided on the output end of the second motor 30 inside the movable disk 14 . The first driving gear 19 is engaged and rotated with the gear disk 18 to provide power for the rotation of the gear disk 18 .

[0040] Specifically, the second motor 30 is a common motor. The output end of the second motor 30 drives the first driving gear 19 to rotate, and the first driving gear 19 drives the gear plate 18 to rotate.

[0041] Further, such as Figure 6 As shown, a gear ring 21 is provided on the outer wall of the rotating baffle 20, a third motor 31 is provided on one side of the movable disk 14, and a second driving gear 22 is provided at the output end of the third motor 31. The second driving gear 22 is engaged and rotatably connected with the gear ring 21.

[0042] Specifically, the third motor 31 is a common motor. The output end of the third motor 31 drives the second drive gear 22 to rotate. The second drive gear 22 is engaged with the gear ring 21 to drive the rotating baffle 20 to rotate, providing power for the rotating baffle 20 to rotate.

[0043] Further, such as Figure 8 As shown, a slip ring groove 37 is provided on the lower end surface of the movable plate 14 , a slip ring protrusion 38 is slidably provided in the slip ring groove 37 , and the slip ring protrusion 38 is fixedly connected to the rotating baffle 20 .

[0044] Further, such as Figure 4 As shown, a collecting groove 24 is provided on the inner bottom surface of the housing 10 below the rotating baffle 20 , a through hole 25 is provided inside the collecting groove 24 , and a collecting frame 26 is provided on the lower end surface of the housing 10 below the through hole 25 .

[0045] Specifically, the arrangement of the collecting groove 24 , the through hole 25 and the collecting frame 26 can collect the paint sprayed by the sprayer 12 onto the inner side surface of the rotating baffle 20 , thereby effectively saving the use of paint.

[0046] First, start the second motor 30, and the output end of the second motor 30 drives the first driving gear 19 to rotate, and the first driving gear 19 drives the toothed disc 18 to rotate. The rotation of the toothed disc 18 enables the slider 39 to slide along the slide groove 40 on the toothed disc 18, and the slider 39 drives the support block 16 to move through the toothed disc 18. The movement of the support block 16 can pull the polygonal through hole 41 on the elastic barrier membrane 15 to deform, thereby increasing the area of ​​the polygonal through hole 41, and start the pneumatic chuck 13, and put the drill bit to be sprayed into the polygonal through hole 41 and clamp it on the pneumatic chuck 13, and then, according to the requirement of the spray layer length of the drill bit, start each first push cylinder 28, and the output end of the first push cylinder 28 drives the movable disc 14 to move vertically until the elastic barrier membrane 15 moves to the required height of the drill bit, and then start the second motor 30 again and rotate in the opposite direction, so that the inner side wall of the polygonal through hole 41 is in close contact with the drill bit, forming a wrapping and shielding for the drill bit.

[0047] Then, the third motor 31 is started, and the output end of the third motor 31 drives the second driving gear 22 to rotate, and the second driving gear 22 drives the rotating baffle 20 to rotate through the gear ring 21, so that the opening on one side of the rotating baffle 20 is in the same direction as the drill bit and the sprayer 12. Then the second push cylinder 32 and the third push cylinder 33 are started, and the output end of the second push cylinder 32 drives the connecting plate 42 to move horizontally, and the output end of the third push cylinder 33 drives the sprayer 12 to move vertically, so as to adjust the spraying position of the sprayer 12 relative to the drill bit according to demand.

[0048] Finally, the first motor 29 and the sprayer 12 are started. The first motor 29 drives the pneumatic chuck 13 to rotate, thereby driving the drill bit to rotate. The sprayer 12 sprays paint to coat the drill bit.

[0049] Example 2:

[0050] On the basis of the first embodiment, a further embodiment is made, such as Figure 4 As shown, a plurality of guide grooves 23 are provided on the inner side surface of the rotating baffle 20 .

[0051] Specifically, the setting of the guide groove 23 can speed up the paint sprayed by the sprayer 12 to the inner side of the rotating baffle 20 to flow into the collecting groove 24, preventing the paint from sticking to the inner wall of the rotating baffle 20 for a long time and solidifying, causing waste of paint.

[0052] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of the components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0053] It should be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or system. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the product or system comprising the element.

[0054] The above description shows and describes several preferred embodiments of the present application. However, as previously mentioned, it should be understood that the present application is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present application can be used in various other combinations, modifications, and environments and can be modified within the scope of the application concept described herein through the above teachings or technology or knowledge in the relevant field. Modifications and changes made by those skilled in the art that do not depart from the spirit and scope of the present application should be protected by the claims appended hereto.

Claims

1. A coating device for a cemented carbide drill bit, comprising a housing (10), wherein one side of the housing (10) is provided with two matching sliding doors (11), characterized in that: A pneumatic chuck (13) is rotatably provided below the top plate of the housing (10), a movable disk (14) is slidably provided on the lower end surface of the pneumatic chuck (13), an elastic baffle membrane (15) is provided at the lower end of the movable disk (14), a polygonal through hole (41) is provided inside the elastic baffle membrane (15), and the polygonal through hole (41) can adaptively wrap the drill bit, and a plurality of support blocks (16) are provided on the upper end surface of the elastic baffle membrane (15), each of the support blocks ( 16) corresponds to a corner of the polygonal through hole (41), each of the support blocks (16) slides synchronously and stretches and deforms the polygonal through hole (41), a rotating baffle (20) is rotatably provided below the movable disk (14), a multi-axis drive assembly is provided on one side of the pneumatic chuck (13) inside the housing (10), an output end of the multi-axis drive assembly is connected to a sprayer (12), and an air purifier (27) is provided on the upper end surface of the housing (10).

2. The coating equipment for cemented carbide drill bits according to claim 1, characterized in that: A toothed disc (18) is rotatably provided above the elastic barrier membrane (15) inside the movable disc (14), and a plurality of slide grooves (40) are provided on the toothed disc (18). A slider (39) is slidably provided inside each of the slide grooves (40), and a connecting rod (17) is provided between every two adjacent sliders (39) and the support block (16).

3. The coating equipment for cemented carbide drill bits according to claim 1, characterized in that: A second motor (30) is provided on the upper end surface of the movable disk (14); an output end of the second motor (30) is provided with a first driving gear (19) inside the movable disk (14); and the first driving gear (19) is meshed and rotationally connected with the toothed disk (18).

4. The coating device for cemented carbide drill bits according to claim 3, characterized in that: A gear ring (21) is provided on the outer side wall of the rotating baffle (20), a third motor (31) is provided on one side of the movable disk (14), a second driving gear (22) is provided at the output end of the third motor (31), and the second driving gear (22) is meshed and rotatably connected with the gear ring (21).

5. The coating equipment for cemented carbide drill bits according to claim 1, characterized in that: The multi-axis drive assembly includes a second push cylinder (32) arranged on the outer wall of the shell (10), the output end of the second push cylinder (32) is provided with a connecting plate (42) inside the shell (10), the upper end surface of the connecting plate (42) is provided with a third push cylinder (33), and the output end of the third push cylinder (33) passes through the connecting plate (42) and is fixedly connected to the sprayer (12).

6. The coating device for cemented carbide drill bits according to claim 5, characterized in that: A paint storage box (35) is provided on the side wall of the housing (10) below the second push cylinder (32), and a hose (34) is provided between the paint storage box (35) and the sprayer (12).

7. The coating equipment for cemented carbide drill bits according to claim 1, characterized in that: A collecting groove (24) is provided on the inner bottom surface of the shell (10) below the rotating baffle (20), a through hole (25) is provided inside the collecting groove (24), and a collecting frame (26) is provided on the lower end surface of the shell (10) below the through hole (25).

8. The coating equipment for cemented carbide drill bits according to claim 4, characterized in that: The lower end surface of the movable disk (14) is provided with a slip ring groove (37), a slip ring protrusion (38) is slidably provided in the slip ring groove (37), and the slip ring protrusion (38) is fixedly connected to the rotating baffle (20).

9. The coating equipment for cemented carbide drill bits according to claim 7, characterized in that: The inner side surface of the rotating baffle (20) is provided with a plurality of guide grooves (23).

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