Chuck device

Abstract

The utility model relates to the field of tool clamps, and discloses a chuck device which comprises a body and a guide sleeve, the body is arranged on the guide sleeve in a sleeved mode and movably connected with the guide sleeve, an oil cavity used for containing lubricating oil is formed between the body and the guide sleeve, a first groove and a second groove are annularly formed in the peripheral wall of the guide sleeve, and the first groove and the second groove are communicated with each other. A first sealing ring and a second sealing ring are arranged in the first groove and the second groove respectively and located at the upper end and the lower end of the oil cavity respectively so as to prevent lubricating oil from leaking. According to the chuck device, the first sealing ring and the second sealing ring are located at the upper end and the lower end of the oil cavity respectively, so that the oil cavity between the body and the guide sleeve is sealed, lubricating oil is prevented from leaking, the sealing performance is enhanced, meanwhile, disintegrating slag generated in the machining process can be prevented from entering, and the dustproof and waterproof functions are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling fixtures, in particular to a clamping device. Background Art

[0002] The existing chuck device has poor sealing performance, and the lubricating oil between the body and the guide sleeve is easy to leak, which not only causes waste but also easily flows into the lathe, causing pollution and difficulty in cleaning. Utility Model Content

[0003] In order to solve at least one aspect of the above problems, the utility model provides a chuck device, including a body and a guide sleeve, the body is sleeved on the guide sleeve and movably connected to the guide sleeve, an oil chamber for accommodating lubricating oil is provided between the body and the guide sleeve, a first groove and a second groove are provided on the outer peripheral wall of the guide sleeve, a first sealing ring and a second sealing ring are respectively provided in the first groove and the second groove, the first sealing ring and the second sealing ring are respectively located at the upper and lower ends of the oil chamber to prevent leakage of lubricating oil.

[0004] Optionally, it further includes an end cover provided at the upper end of the body, the end cover and the body are bolted together, a first limiting portion is provided on the end cover, and the first limiting portion is limited above the guide sleeve.

[0005] Optionally, a second limiting portion is protruded from the upper portion of the main body, the second limiting portion abuts against the inner wall of the end cover, and the upper end of the second limiting portion abuts against the lower end of the first limiting portion.

[0006] Optionally, a chuck is further included, a mounting cavity is provided in the guide sleeve, the chuck is accommodated in the mounting cavity, a telescopic portion is provided on the chuck, and the telescopic portion is suitable for abutting against the first limiting portion.

[0007] Optionally, a first guide surface is provided on the upper end of the inner wall of the guide sleeve, and a second guide surface is provided on the telescopic part. The first guide surface is abutted against the second guide surface. When the guide sleeve moves upward, the first guide surface pushes the second guide surface to cause the telescopic part to contract.

[0008] Optionally, an oil filling port is provided on the main body, an oil groove is provided on the guide sleeve, the oil filling port and the oil groove are communicated, the oil cavity is formed by the cooperation of the oil filling port and the oil groove, and a grease nipple is provided in the oil filling port.

[0009] Optionally, an adapter is further included which passes through from top to bottom, a limiting groove is recessed at the lower end of the guide sleeve, a flange is provided at the upper end of the peripheral wall of the adapter, and the flange is threadedly connected to the limiting groove.

[0010] Optionally, an avoidance groove is recessed on the outer wall of the guide sleeve, and a positioning hole is provided on the main body, the positioning hole and the avoidance groove correspond to each other, a positioning pin is provided in the positioning hole, one end of the positioning pin is inserted into the avoidance groove and movably connected to the avoidance groove up and down, so that the main body and the guide sleeve are positioned.

[0011] Optionally, a connecting portion is provided around the lower end of the body, the diameter of the connecting portion is larger than the diameter of the inner wall of the body, and the connecting portion is provided with an avoidance opening and a threaded hole connected to each other, and the threaded hole passes through the connecting portion from top to bottom.

[0012] Optionally, an annular clamping opening is recessed on the outer wall of the body.

[0013] Compared with the prior art, the chuck device in the present invention seals the oil chamber between the main body and the guide sleeve by arranging a first sealing ring and a second sealing ring respectively at the upper and lower ends of the oil chamber to prevent leakage of lubricating oil and enhance sealing performance. At the same time, it can also prevent debris generated during processing from entering, thereby playing a dust-proof and waterproof function. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A cross-sectional view of a chuck device according to an embodiment of the present invention;

[0015] Figure 2 This is a structural diagram of the body of an embodiment of the utility model;

[0016] Figure 3 A cross-sectional view of a body of an embodiment of the present utility model;

[0017] Figure 4 This is a structural diagram of a guide sleeve according to an embodiment of the present utility model;

[0018] Figure 5 It is a cross-sectional view of the body of an embodiment of the present utility model.

[0019] Description of reference numerals:

[0020] 1. End cover; 11. First limiting part; 2. Main body; 21. Grease nipple; 22. Positioning pin; 23. Connecting part; 24. Avoidance opening; 25. Threaded hole; 26. Second limiting part; 27. Clamping mouth; 3. Guide sleeve; 31. First groove; 32. First sealing ring; 33. Second groove; 34. Second sealing ring; 35. Avoidance groove; 36. Oil groove; 37. Limiting groove; 38. First guide surface; 4. Adapter; 41. Flange; 5. Chuck; 51. Telescopic part; 52. Second guide surface. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0022] In the description of the present invention, it should be understood that the terms "upper" and "lower" and the like indicate positions or location relationships based on the positions or location relationships during normal use of the product.

[0023] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. The drawings of the embodiments of the present invention are provided with a coordinate system XY, where the positive direction of the X axis represents the left, the negative direction of the X axis represents the right, the positive direction of the Y axis represents the top, and the negative direction of the Y axis represents the bottom.

[0024] The embodiment of the utility model provides a chuck device, combined with Figure 1-5 As shown, it includes a body 2 and a guide sleeve 3, the body 2 is sleeved on the guide sleeve 3 and movably connected to the guide sleeve 3, an oil chamber for accommodating lubricating oil is provided between the body 2 and the guide sleeve 3, a first groove 31 and a second groove 33 are provided on the outer peripheral wall of the guide sleeve 3, a first sealing ring 32 and a second sealing ring 34 are provided in the first groove 31 and the second groove 33 respectively, the first sealing ring 32 and the second sealing ring 34 are respectively located at the upper and lower ends of the oil chamber to prevent leakage of lubricating oil, and at the same time prevent debris generated during processing from entering, thereby playing a dust-proof and waterproof function.

[0025] like Figure 1 As shown, the chuck device in the present invention seals the oil chamber between the body 2 and the guide sleeve 3 by arranging a first sealing ring 32 and a second sealing ring 34 at the upper and lower ends of the oil chamber respectively, thereby preventing leakage of lubricating oil and enhancing sealing performance.

[0026] The chuck device further includes an end cover 1 provided at the upper end of the body 2 , the end cover 1 and the body 2 being bolted together, a first limiting portion 11 being provided on the end cover 1 , and the first limiting portion 11 being limited above the guide sleeve 3 .

[0027] like Figure 1 As shown, in this embodiment, the first limiting portion 11 is limited above the guide sleeve 3 to prevent the guide sleeve 3 from moving too far and falling off during the upward movement, thereby making the structure more stable.

[0028] A second limiting portion 26 is protruded from the upper portion of the body 2 . The second limiting portion 26 abuts against the inner wall of the end cover 1 , and the upper end of the second limiting portion 26 abuts against the lower end of the first limiting portion 11 .

[0029] like Figure 1 and 2 As shown, in this embodiment, the second limiting portion 26 makes the end cover 1 and the body 2 more accurately docked during installation and the structure more stable.

[0030] The chuck device further includes a chuck 5 . A mounting cavity is provided in the guide sleeve 3 . The chuck 5 is accommodated in the mounting cavity. A telescopic portion 51 is provided on the chuck 5 . The telescopic portion 51 is suitable for abutting against the first limiting portion 11 .

[0031] like Figure 1 As shown, in this embodiment, when the guide sleeve 3 moves upward, the upper portion of the guide sleeve 3 presses the telescopic portion 51, causing the telescopic portion 51 to contract and clamp the workpiece. When the guide sleeve 3 moves downward, the telescopic portion 51 extends and releases the workpiece. The first stopper 11 is positioned above the telescopic portion 51 to prevent it from moving upward.

[0032] A first guide surface 38 is provided at the upper end of the inner wall of the guide sleeve 3, and a second guide surface 52 is provided on the telescopic portion 51. The first guide surface 38 is abutted against the second guide surface 52. When the guide sleeve 3 moves upward, the first guide surface 38 pushes the second guide surface 52 to shrink the telescopic portion 51.

[0033] like Figure 1 and 5 As shown, in this embodiment, under the guiding action of the first guide surface 38 and the second guide surface 52, the guide sleeve 3 pushes the telescopic portion 51 and causes the chuck 5 to contract, thereby achieving clamping of the workpiece.

[0034] The main body 2 is provided with an oil filling port, and the guide sleeve 3 is provided with an oil groove 36. The oil filling port and the oil groove 36 are communicated with each other. The oil cavity is formed by the oil filling port and the oil groove 36. A grease nipple 21 is provided in the oil filling port.

[0035] like Figure 2 As shown, in this embodiment, the grease nipple 21 and the oil filling port are connected by a threaded connection. The oil filling port is used to add lubricating oil. The lubricating oil passes through the oil groove 36 to lubricate the gap between the body 2 and the guide sleeve 3, reducing the friction coefficient between the body 2 and the guide sleeve 3, thereby increasing the service life of the guide sleeve 3. When lubricating oil is needed, it is simply and conveniently added to the grease nipple 21 using a grease gun.

[0036] The chuck device further includes an adapter 4 that passes through from top to bottom. A limiting groove 37 is recessed at the lower end of the guide sleeve 3 . A flange 41 is provided at the upper end of the peripheral wall of the adapter 4 . The flange 41 is threadedly connected to the limiting groove 37 .

[0037] like Figure 1As shown, in this embodiment, this not only facilitates installation and disassembly, but also enables the adapter 4 and the guide sleeve 3 to move synchronously.

[0038] An avoidance groove 35 is recessed on the outer wall of the guide sleeve 3, and a positioning hole is provided on the main body 2. The positioning hole corresponds to the avoidance groove 35, and a positioning pin 22 is provided in the positioning hole. One end of the positioning pin 22 is inserted into the avoidance groove 35 and movably connected to the avoidance groove 35 up and down to position the main body 2 and the guide sleeve 3.

[0039] like Figure 2 As shown, in this embodiment, the positioning pin 22 fixes the horizontal positions of the body 2 and the guide sleeve 3 , and the positioning pin 22 is movably connected to the avoidance groove 35 up and down without affecting the movement of the guide sleeve 3 .

[0040] The lower end of the body 2 is provided with a connecting portion 23 , the diameter of which is larger than the diameter of the inner wall of the body 2 , and the connecting portion 23 is provided with an avoidance opening 24 and a threaded hole 25 connected to each other, and the threaded hole 25 passes through the connecting portion 23 from top to bottom.

[0041] like Figure 1-3 As shown, in this embodiment, the main body 2 is connected to the machine tool spindle (not shown) via bolts. During operation, a power source (such as an air cylinder or oil cylinder) pushes the adapter 4 forward via a pull rod (not shown). The adapter 4 drives the guide sleeve 3 to move synchronously. Under the action of the first guide surface 38 and the second guide surface 52, the adapter 4 pushes the chuck 5 and causes the telescopic portion 51 to retract, thereby clamping the workpiece. If the first guide surface 38 of the chuck 5 is damaged, only the end cover 1 needs to be opened, making replacement convenient and improving work efficiency. The end cover 1 not only seals and prevents dust, but also cooperates with the end cover 1 to achieve a better squeeze fit between the first guide surface 38 and the second guide surface 52 of the chuck 5.

[0042] An annular clamping opening 27 is recessed on the outer wall of the main body 2 .

[0043] like Figure 2 As shown, in this embodiment, the clamping opening 27 facilitates clamping the main body 2 during processing to prevent the main body 2 from falling.

[0044] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will fall within the protection scope of the present utility model.

Claims

1. A chuck device, characterized in that: The invention comprises a body (2) and a guide sleeve (3), wherein the body (2) is sleeved on the guide sleeve (3) and movably connected to the guide sleeve (3), an oil cavity for containing lubricating oil is provided between the body (2) and the guide sleeve (3), a first groove (31) and a second groove (33) are provided on the outer peripheral wall of the guide sleeve (3), a first sealing ring (32) and a second sealing ring (34) are provided in the first groove (31) and the second groove (33), respectively, the first sealing ring (32) and the second sealing ring (34) are respectively located at the upper and lower ends of the oil cavity to prevent leakage of lubricating oil.

2. The chuck device according to claim 1, characterized in that It also includes an end cover (1) provided at the upper end of the body (2), the end cover (1) and the body (2) being connected by bolts, and a first limiting portion (11) being provided on the end cover (1), the first limiting portion (11) being limited above the guide sleeve (3).

3. The chuck device according to claim 2, characterized in that A second limiting portion (26) is protruding above the body (2), the second limiting portion (26) abuts against the inner wall of the end cover (1), and the upper end of the second limiting portion (26) abuts against the lower end of the first limiting portion (11).

4. The chuck device according to claim 2, characterized in that The guide sleeve (3) further comprises a chuck (5), wherein a mounting cavity is provided in the guide sleeve (3), the chuck (5) is accommodated in the mounting cavity, and a telescopic portion (51) is provided on the chuck (5), wherein the telescopic portion (51) is suitable for abutting against the first limiting portion (11).

5. The chuck device according to claim 4, characterized in that A first guide surface (38) is provided at the upper end of the inner wall of the guide sleeve (3), and a second guide surface (52) is provided on the telescopic portion (51). The first guide surface (38) and the second guide surface (52) are in abutment with each other. When the guide sleeve (3) moves upward, the first guide surface (38) pushes the second guide surface (52) to cause the telescopic portion (51) to contract.

6. The chuck device according to claim 1, characterized in that The main body (2) is provided with an oil filling port, the guide sleeve (3) is provided with an oil groove (36), the oil filling port and the oil groove (36) are communicated, the oil cavity is formed by the oil filling port and the oil groove (36) in cooperation, and a grease nipple (21) is provided in the oil filling port.

7. The chuck device according to claim 1, characterized in that It also includes an adapter (4) that passes through from top to bottom. The lower end of the guide sleeve (3) is recessed with a limiting groove (37). The upper end of the peripheral wall of the adapter (4) is provided with a flange (41), and the flange (41) is threadedly connected to the limiting groove (37).

8. The chuck device according to claim 1, characterized in that An escape groove (35) is recessed on the outer wall of the guide sleeve (3), and a positioning hole is provided on the body (2), the positioning hole and the escape groove (35) corresponding to each other, and a positioning pin (22) is provided in the positioning hole, one end of the positioning pin (22) is inserted into the escape groove (35) and movably connected to the escape groove (35) up and down, so that the body (2) and the guide sleeve (3) are positioned relative to each other.

9. The chuck device according to claim 1, characterized in that The lower end ring of the body (2) is provided with a connecting portion (23), the diameter of the connecting portion (23) is larger than the diameter of the inner wall of the body (2), and the connecting portion (23) is provided with an avoidance opening (24) and a threaded hole (25) connected to each other, and the threaded hole (25) passes through the connecting portion (23) from top to bottom.

10. The chuck device according to claim 1, characterized in that An annular clamping opening (27) is recessed on the outer wall of the body (2).

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