Inner cavity electroplating diamond roller

Abstract

The utility model discloses a diamond roller with an electroplated inner cavity, and belongs to the field of diamond rollers. Comprising an annular drilling layer and a base layer, a plurality of fixing holes penetrating through the base layer in the radial direction of the base layer are formed in the outer side wall of the base layer, and the fixing holes are evenly distributed in the circumferential direction of the outer side wall of the base layer; a plurality of fixing grooves are formed in the inner side wall of the drilling layer in the radial direction of the drilling layer and correspond to the fixing holes in a one-to-one mode, the diameter of the fixing grooves is equal to that of the fixing holes, and a fixing rod used for fixing the drilling layer and the base layer is arranged in each fixing hole and the corresponding fixing groove in a penetrating mode. The device has the beneficial effects that in the prior art, the fixing hole is formed in the drilling layer and penetrates through the drilling layer; the fixing hole in the device is formed in the base layer and penetrates through the base layer; through the arrangement, hole channels are prevented from being formed in the outer surface of a drill layer needing to rub a workpiece, and the drill layer polishing efficiency is prevented from being reduced; meanwhile, after improvement, the drilling layer and the base layer are still firmly matched; compared with the prior art, the device is more practical.

Description

Technical Field

[0001] The utility model relates to an inner cavity electroplated diamond roller, belonging to the field of diamond rollers. Background Art

[0002] Diamond rollers are high-efficiency, long-life, low-cost grinding wheel dressing tools used in special machine tools and gear grinding machines for large-scale profile grinding.

[0003] Diamond rollers are more suitable for grinding materials with lower hardness, such as stainless steel, aluminum alloy, copper alloy, etc., and can be widely used in mechanical industries such as hardware molds and gear reducers. Diamond rollers are mainly used for precision surface grinding and can obtain good surface roughness. There are four types of diamond rollers, one of which is HNT electroplated diamond rollers, which have high precision and can produce small and complex shapes.

[0004] The Chinese utility model patent application number CN202020736731.3 provides a diamond roller; the outer wall of the drill layer is provided with a plurality of fixing holes penetrating the drill layer in the radial direction of the drill layer, and the fixing holes are evenly distributed along the circumference of the outer wall of the drill layer; the outer wall of the base layer is provided with a plurality of fixing grooves in the radial direction thereof, the fixing grooves corresponding to the fixing holes one by one, the diameter of the fixing grooves being equal to the diameter of the fixing holes, and each fixing hole and the corresponding fixing groove are both provided with a fixing rod for fixing the drill layer and the base layer;

[0005] This patent solves the problem of consolidation failure between the drill layer and the substrate, but a fixing hole is directly opened on the outside of the drill layer. When the diamond roller is used, the outer surface of the drill layer will always be in contact and friction with the workpiece, and the existence of this fixing hole will affect the roughness of the workpiece surface processing; even if a rod is used to block the fixing hole, the end of the rod is smooth with the outer surface of the drill layer, but the outer surface of the rod will also contact the workpiece during grinding, and the strong friction will generate high temperature. Under the condition of thermal expansion and contraction, the coordination between the rod and the fixing hole will be problematic, resulting in a gap between the rod and the fixing hole, affecting the grinding of the workpiece. Utility Model Content

[0006] The purpose of the utility model is to provide an inner cavity electroplated diamond roller, which can effectively solve the above problems.

[0007] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0008] It includes an annular drilling layer and a base layer, which are solidified together by interference fit or gluing. The outer wall of the base layer is fixed to the inner wall of the drilling layer. The outer wall of the base layer is provided with a plurality of fixing holes that penetrate the base layer in the radial direction of the base layer, and the fixing holes are evenly distributed along the circumference of the outer wall of the base layer; the inner wall of the drilling layer is provided with a plurality of fixing grooves along its radial direction, and the fixing grooves correspond to the fixing holes one by one, and the diameter of the fixing grooves is equal to the diameter of the fixing holes. A fixing rod for fixing the drilling layer and the base layer is passed through each of the fixing holes and the corresponding fixing grooves.

[0009] Further: the fixing rod is an insertion rod, the diameter of the insertion rod is larger than the diameter of the fixing hole, the insertion rod and the fixing hole are interference fit, the insertion rod and the fixing groove are interference fit, and the length of the insertion rod is less than or equal to the sum of the depths of the fixing groove and the fixing hole.

[0010] Further: a first internal thread is provided on the inner side wall of the fixing hole along its depth direction, and a second internal thread is provided on the inner side wall of the fixing groove along its depth direction; the fixing rod is a screw rod, and an external thread that cooperates with the first internal thread and the second internal thread is provided on the outer side wall of the screw rod along its axial direction, the screw rod is threadedly connected to the fixing hole and the fixing groove, and the length of the screw rod is less than or equal to the sum of the depths of the fixing groove and the fixing hole.

[0011] Furthermore: the base layer is composed of a mounting ring and a base ring, there are three support bars in a circumferential array between the base ring and the mounting ring, and the fixing hole passes through the base ring, the mounting ring and the support bars.

[0012] Furthermore: the cross-sectional shape of the support bar is an isosceles trapezoid, the long side of the support bar is fixed to the inner surface of the base ring, and the short side of the support bar is fixed to the outer surface of the mounting ring.

[0013] The beneficial effects are:

[0014] The setting positions of the fixing holes and the fixing grooves are changed in this device. The fixing holes in the prior art are set in the drill layer and pass through the drill layer; while the fixing holes in this device are set in the base layer and pass through the base layer; such a setting can avoid opening channels on the outer surface of the drill layer that needs to rub the workpiece, thereby preventing the reduction of the drilling layer grinding efficiency; at the same time, after the improvement, the fit between the drill layer and the base layer is still firm; compared with the prior art, it is more practical.

[0015] The base structure of this device is improved. The base consists of a mounting ring, a base ring, and a support strip arranged between the base and the mounting ring. The fixing hole passes through the base ring, the mounting ring, and the support strip. The base ring is glued to the drill layer. The mounting ring is provided with a keyway and is connected to the rotating shaft key. The support strip is intended to provide a more stable pressure to the base. It is also for the convenience of setting the fixing hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] For ease of explanation, the present invention is described in detail with reference to the following specific implementations and accompanying drawings.

[0017] Figure 1 The fixing rod of the present utility model is a screw part diagram;

[0018] Figure 2 The fixing rod of the present utility model is a part drawing of the insertion rod.

[0019] Description of Figure Numbers:

[0020] 1. Drilling layer; 2. Base layer; 21. Mounting ring; 22. Base ring; 23. Support bar; 3. Fixing hole; 4. Fixing groove; 5. Fixing rod; 6. First internal thread; 7. Second internal thread. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0022] See Figure 1 、 Figure 2 This is an embodiment of an inner cavity electroplated diamond roller of the utility model.

[0023] It includes a circular drilling layer 1 and a base layer 2, which are consolidated together by interference fit or gluing. The outer wall of the base layer 2 is fixed to the inner wall of the drilling layer 1, and the outer wall of the base layer 2 is provided with a plurality of fixing holes 3 that penetrate the base layer 2 in the radial direction. The fixing holes 3 are evenly distributed along the circumference of the outer wall of the base layer 2; a plurality of fixing grooves 4 are opened on the inner wall of the drilling layer 1 along its radial direction, and the fixing grooves 4 correspond to the fixing holes 3 one by one. The diameter of the fixing grooves 4 is equal to the diameter of the fixing holes 3, and each fixing hole 3 and the corresponding fixing groove 4 are jointly provided with a fixing rod 5 for fixing the drilling layer 1 and the base layer 2.

[0024] After the fixing rod 5 is inserted into the fixing hole 3 and the fixing groove 4, the fixing rod 5 can fix the drilling layer 1 and the base layer 2, thereby fixing the drilling layer 1 and the base layer 2 tightly, preventing looseness between the drilling layer 1 and the base layer 2, and ensuring the stability of the diamond roller;

[0025] In this device, the setting positions of the fixing hole 3 and the fixing groove 4 are changed. The fixing hole 3 in the prior art is set in the drill layer 1 and passes through the drill layer 1; while in this device, the fixing hole 3 is set in the base layer 2 and passes through the base layer 2; such a setting can avoid opening a channel on the outer surface of the drill layer 1 that needs to rub the workpiece, thereby preventing the reduction of the grinding efficiency of the drill layer 1; at the same time, after the improvement, the cooperation between the drill layer 1 and the base layer 2 is still firm; compared with the prior art, it is more practical.

[0026] The fixing rod 5 is an insertion rod, the diameter of the insertion rod is larger than the diameter of the fixing hole 3, the insertion rod and the fixing hole 3 have an interference fit, the insertion rod and the fixing groove 4 have an interference fit, and the length of the insertion rod is less than or equal to the sum of the depths of the fixing groove 4 and the fixing hole 3.

[0027] The fixing rod 5 is an insertion rod, which has an interference fit with the fixing hole 3 and the fixing groove 4, so that the insertion rod can play a certain fixing role on the drilling layer 1 and the base layer 2, thereby achieving the effect of enhancing the stability of the diamond roller.

[0028] A first internal thread 6 is provided on the inner side wall of the fixing hole 3 along its depth direction, and a second internal thread 7 is provided on the inner side wall of the fixing groove 4 along its depth direction; the fixing rod 5 is a screw rod, and an external thread that is threadably matched with the first internal thread 6 and the second internal thread 7 is provided on the outer side wall of the screw rod along its axial direction. The screw rod is threadedly connected to the fixing hole 3 and the fixing groove 4, and the length of the screw rod is less than or equal to the sum of the depths of the fixing groove 4 and the fixing hole 3.

[0029] The fixing rod 5 is a screw rod, which is threadedly connected to the fixing hole 3 and the fixing groove 4 to ensure the stability of the connection between the fixing groove 4, the fixing hole 3 and the fixing rod 5.

[0030] The base layer 2 is composed of a mounting ring 21 and a base ring 22 . Three support bars 23 are arranged in a circumferential array between the base ring 22 and the mounting ring 21 . The fixing hole 3 passes through the base ring 22 , the mounting ring 21 and the support bars 23 .

[0031] In this device, the structure of the base layer 2 is improved. The base layer 2 is composed of a mounting ring 21, a base ring 22, and a support bar 23 arranged between the base layer 2 and the mounting ring 21. The fixing hole 3 passes through the base ring 22, the mounting ring 21, and the support bar 23.

[0032] The base ring 22 is glued to the drill layer 1; the mounting ring 21 is provided with a keyway and connected to the rotating shaft key; and the support bar 23 is to provide a more stable pressure to the base layer 2; and it is also for the convenience of setting the fixing hole 3;

[0033] The cross-section of the support bar 23 is an isosceles trapezoid. The long side of the support bar 23 is fixed to the inner surface of the base ring 22 , and the short side of the support bar 23 is fixed to the outer surface of the mounting ring 21 .

[0034] The purpose of setting the support bar 23 into such a shape is to improve the support stability of the drilling layer 1.

[0035] The above description is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any changes or modifications made by any technician in this field within the scope of the present invention are included in the patent scope of the present invention.

Claims

1. An inner cavity electroplated diamond roller, characterized by: The invention comprises an annular drilling layer (1) and a base layer (2), wherein the drilling layer (1) and the base layer (2) are fixed together by interference fit or gluing, the outer wall of the base layer (2) is fixed to the inner wall of the drilling layer (1), and the outer wall of the base layer (2) is provided with a plurality of fixing holes (3) penetrating the base layer (2) in the radial direction, and the fixing holes (3) are evenly distributed along the circumference of the outer wall of the base layer (2); the inner wall of the drilling layer (1) is provided with a plurality of fixing grooves (4) in the radial direction, the fixing grooves (4) correspond to the fixing holes (3) one by one, the diameter of the fixing grooves (4) is equal to the diameter of the fixing holes (3), and each of the fixing holes (3) and the corresponding fixing grooves (4) are both provided with a fixing rod (5) for fixing the drilling layer (1) and the base layer (2).

2. The inner cavity electroplated diamond roller according to claim 1, characterized in that: The fixing rod (5) is an insertion rod, the diameter of the insertion rod is larger than the diameter of the fixing hole (3), the insertion rod and the fixing hole (3) are interference fit, the insertion rod and the fixing groove (4) are interference fit, and the length of the insertion rod is less than or equal to the sum of the depths of the fixing groove (4) and the fixing hole (3).

3. The inner cavity electroplated diamond roller according to claim 2, characterized in that: A first internal thread (6) is provided on the inner side wall of the fixing hole (3) along its depth direction, and a second internal thread (7) is provided on the inner side wall of the fixing groove (4) along its depth direction; the fixing rod (5) is a screw rod, and an external thread that is threadably matched with the first internal thread (6) and the second internal thread (7) is provided on the outer side wall of the screw rod along its axial direction. The screw rod is threadably connected to the fixing hole (3) and the fixing groove (4), and the length of the screw rod is less than or equal to the sum of the depths of the fixing groove (4) and the fixing hole (3).

4. The inner cavity electroplated diamond roller according to claim 3, characterized in that: The base layer (2) is composed of a mounting ring (21) and a base ring (22), three support bars (23) are arranged in a circumferential array between the base ring (22) and the mounting ring (21), and the fixing hole (3) passes through the base ring (22), the mounting ring (21) and the support bars (23).

5. The inner cavity electroplated diamond roller according to claim 4, characterized in that: The cross-sectional shape of the support bar (23) is an isosceles trapezoid, the long side of the support bar (23) is fixed to the inner surface of the base ring (22), and the short side of the support bar (23) is fixed to the outer surface of the mounting ring (21).

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