A telescopic grinding wheel dressing device

Abstract

The utility model provides a telescopic grinding wheel dressing device, include: telescopic pipe and with telescopic pipe telescopic connection's diamond pen, still include setting at telescopic pipe surface's sealing washer, the surface of diamond pen is equipped with the locating post, sealing washer and locating post carry out rigid positioning to diamond pen, still have the locating flange of setting at sealing washer surface, the surface of diamond pen is equipped with the locating pin, and locating flange is locked in rotation with locating pin to diamond pen, through the limiting rod to the oil cylinder is limited, guarantees the oil cylinder to drive diamond pen to keep linear movement when extending, when diamond pen completely extends, sealing washer carries out complete restriction to locating post, and locating flange carries out restriction to locating pin, makes diamond pen unable to sway or rotate, thereby guaranteeing the precision that diamond pen dresses grinding wheel.

Description

Technical Field

[0001] This utility model relates to the field of grinding centers, and in particular to a retractable grinding wheel dressing device. Background Technology

[0002] A grinding center is a machine tool that integrates external cylindrical grinding, end face grinding, and internal hole or internal thread grinding into one unit. It can complete the grinding of external diameter, end face, internal hole or internal thread in one clamping. Therefore, it integrates external cylindrical grinding wheel, internal hole grinding wheel or internal thread grinding wheel, so the equipment is relatively compact. When dressing the external cylindrical grinding wheel, the diamond pen needs to be extended. When machining the external cylindrical grinding wheel or internal hole grinding wheel, the diamond pen needs to be retracted, otherwise there may be interference.

[0003] However, when existing diamond dressing tools are used to dress grinding wheels, the high friction on the grinding wheel surface can easily cause the diamond dressing tool to move. The shaking of the diamond dressing tool leads to poor dressing accuracy of the grinding wheel. At the same time, the impact of the grinding wheel can cause the diamond dressing tool to rotate, resulting in damage to the diamond dressing tool. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the existing technology. This utility model proposes a retractable grinding wheel dressing device.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a telescopic grinding wheel dressing device, comprising: a telescopic tube and a diamond pen telescopically connected to the telescopic tube; It also includes a sealing ring set on the surface of the telescopic tube, and a positioning post on the surface of the diamond pen. The sealing ring and the positioning post provide rigid positioning for the diamond pen. There is also a positioning flange on the surface of the sealing ring, and a positioning pin on the surface of the diamond pen. The positioning flange and the positioning pin rotate and lock the diamond pen.

[0006] Preferably, the sealing ring has a rubber ring inside, which is located at the connection between the diamond pen and the positioning post when the diamond pen is fully extended.

[0007] Preferably, the surface of the diamond pen is equipped with an oil cylinder, and a piston rod is telescopically connected inside the oil cylinder.

[0008] Preferably, the surface of the telescopic tube is provided with a limiting rod, and the surface of the oil cylinder is provided with a moving groove. The limiting rod and the moving groove cooperate to lock the moving direction of the diamond pen.

[0009] Preferably, the positioning post has a frustum structure, and the end of the positioning post with a smaller diameter is connected to the diamond pen.

[0010] Preferably, the sealing ring is fitted inside the positioning post.

[0011] Preferably, the surface of the positioning flange is provided with a positioning groove, and the positioning pin is provided corresponding to the positioning groove.

[0012] Compared with the prior art, the beneficial effects of this utility model include: limiting the oil cylinder by the limiting rod to ensure that the oil cylinder drives the diamond pen to extend in a straight line; when the diamond pen is fully extended, the sealing ring completely restricts the positioning pin, and the positioning flange restricts the positioning pin, so that the diamond pen cannot shake or rotate, thereby ensuring the accuracy of the diamond pen in dressing the grinding wheel. Attached Figure Description

[0013] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein: Figure 1 The schematic diagram shows a structural schematic of a retractable grinding wheel dressing device according to one embodiment of the present invention.

[0014] Figure 2 The diagram schematically shows a cross-sectional view of a telescopic tube according to one embodiment of the present invention.

[0015] Figure 3 The diagram schematically shows the internal structure of a telescopic tube according to one embodiment of the present invention.

[0016] Figure 4 The schematic diagram shows a hydraulic cylinder structure according to one embodiment of the present invention.

[0017] The diagram labels are as follows: 1. Telescopic mechanism; 11. Telescopic tube; 12. Sealing ring; 13. Rubber ring; 14. Positioning flange; 2. Trimming mechanism; 21. Diamond pen; 22. Hydraulic cylinder; 23. Piston rod; 24. Positioning column; 25. Positioning pin; 26. Moving groove; 3. Limiting rod; Detailed Implementation

[0018] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0019] Example 1 According to one embodiment of the present invention, in conjunction with Figure 1As shown, the trimming mechanism 2 is sleeved with the telescopic mechanism 1. The extension and retraction of the trimming mechanism 2 is controlled by pumping or extracting oil into the telescopic mechanism through an external hydraulic oil pump. The limit rod 3 is used to limit the movement direction of the trimming mechanism 2 so that the trimming mechanism does not rotate when it extends or retracts.

[0020] According to one embodiment of the present invention, in conjunction with Figure 2 As shown, the telescopic mechanism 1 includes a telescopic tube 11, a sealing ring 12, a rubber ring 13, and a positioning flange 14. The trimming mechanism 2 includes a diamond pen 21, a hydraulic cylinder 22, a piston rod 23, a positioning pin 24, a positioning pin 25, and a moving groove 26. The piston rod 23 is fixed inside the telescopic tube 11. By introducing hydraulic oil into the hydraulic cylinder 22, the hydraulic cylinder 22 is pushed to move inside the telescopic tube 11 because the piston rod 23 is fixed. When the hydraulic cylinder 22 moves, it drives the diamond pen 21 to move. Since the rubber ring 13 is fixed inside the sealing ring 12, the diamond pen 21 moves inside the sealing ring 12.

[0021] According to one embodiment of the present invention, in conjunction with Figure 3 As shown, the positioning post 24 has a frustum structure. The smaller diameter end of the positioning post 24 is connected to the diamond pen 21. The sealing ring 12 is set inside to cooperate with the positioning post 24. When the diamond pen 21 is fully extended, the positioning post 24 and the inside of the sealing ring 12 are completely in contact. When the diamond pen 21 dresses the grinding wheel, it can prevent the diamond pen 21 from shaking under the action of the grinding wheel.

[0022] According to one embodiment of the present invention, in conjunction with Figure 4 As shown, the surface of the positioning flange 14 is provided with a positioning groove, and the positioning pin 25 is correspondingly provided with the positioning groove. When the diamond pen 21 is fully extended, the positioning pin 25 enters the positioning groove on the surface of the positioning flange 14. When the diamond pen 21 dresses the grinding wheel, it can prevent the diamond pen 21 from rotating relative to the telescopic tube 11 under the drive of the grinding wheel. At the same time, the limiting rod 3 moves inside the moving groove 26, so that the oil cylinder 22 can only move in a straight line when it moves, so that the positioning pin 25 can stably enter the positioning groove on the surface of the positioning flange 14.

[0023] In this embodiment, hydraulic oil is filled into the telescopic tube 11. The hydraulic oil pushes the cylinder 22 to move relative to the piston rod 23. Since the limiting rod 3 slides inside the moving groove 26, the cylinder 22 moves linearly. When the cylinder 22 moves, it drives the diamond pen 21 to move. When the diamond pen 21 is fully extended, the positioning pin 25 enters the positioning groove on the surface of the positioning flange 14, and the positioning post 24 enters the sealing ring 12. The positioning post 24 fits against the sealing ring 12. When the diamond pen 21 dresses the grinding wheel, the positioning post 24 under the limit of the sealing ring 12 can prevent the grinding wheel from causing the diamond pen 21 to shake. The positioning pin 25 under the limit of the positioning flange 14 can prevent the grinding wheel from causing the diamond pen 21 to rotate, thereby ensuring the accuracy of the diamond pen 21 in dressing the grinding wheel.

[0024] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A retractable grinding wheel dressing device, characterized in that, include: Telescopic tube (11) and diamond pen (21) telescopically connected to telescopic tube (11); It also includes a sealing ring (12) set on the surface of the telescopic tube (11), and a positioning post (24) provided on the surface of the diamond pen (21). The sealing ring (12) and the positioning post (24) provide rigid positioning for the diamond pen (21); There is also a positioning flange (14) on the surface of the sealing ring (12), and a positioning pin (25) on the surface of the diamond pen (21). The positioning flange (14) and the positioning pin (25) rotate and lock the diamond pen (21).

2. The retractable grinding wheel dressing device according to claim 1, characterized in that, The sealing ring (12) has a rubber ring (13) inside. When the diamond pen (21) is fully extended, the rubber ring (13) is set at the connection between the diamond pen (21) and the positioning post (24).

3. The retractable grinding wheel dressing device according to claim 1, characterized in that, The surface of the diamond pen (21) is equipped with an oil cylinder (22), and the oil cylinder (22) is internally connected to a piston rod (23).

4. The retractable grinding wheel dressing device according to claim 3, characterized in that, The surface of the telescopic tube (11) is provided with a limiting rod (3), and the surface of the oil cylinder (22) is provided with a moving groove (26). The limiting rod (3) and the moving groove (26) cooperate to set the moving direction of the diamond pen (21).

5. The retractable grinding wheel dressing device according to claim 1, characterized in that, The positioning post (24) is a frustum structure, and the smaller diameter end of the positioning post (24) is connected to the diamond pen (21).

6. The retractable grinding wheel dressing device according to claim 5, characterized in that, The sealing ring (12) is fitted inside the positioning post (24).

7. The retractable grinding wheel dressing device according to claim 1, characterized in that, The surface of the positioning flange (14) is provided with a positioning groove, and the positioning pin (25) is provided in correspondence with the positioning groove.

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