Device for clamping electric spindle

Abstract

The utility model relates to a device for clamping an electric spindle. The device comprises a base, a supporting piece arranged on the base, an adjusting piece rotating on the supporting piece, a clamping piece for clamping the surface of the electric spindle and an adjusting mechanism for adjusting the acting end of the clamping piece. Two groups of supporting pieces are oppositely arranged; a rack is arranged on the adjusting piece; the rack corresponds to the clamping piece; the clamping piece is rotationally arranged on the supporting piece; three groups of clamping pieces are arranged in a circumferential array; the adjusting mechanism is arranged on the supporting piece. The problems that a clamp is prone to clamping looseness, a workpiece moves, machining precision and quality are affected, the clamp needs to be frequently replaced and adjusted, long time is consumed during operation, and production efficiency is difficult to improve are solved.

Description

Technical Field

[0001] The utility model relates to the field of electric spindles, in particular to a device for clamping an electric spindle. Background Art

[0002] In the prior art, an electric spindle is an electric device used to drive a machine tool to work, commonly found in machine tools such as CNC machining centers, lathes, and milling machines. Among them, the quality of the spindle part in the electric spindle will seriously affect the service life of its finished product. In order to ensure its quality, it needs to be polished. During the polishing process of the electric spindle spindle part, every time the spindle part switches to a different size, it is necessary to manually adjust the clamping position of the fixture, which is cumbersome and inefficient, and the production efficiency is relatively low. Due to the large vibration generated during the operation of the grinding machine, the existing fixture is prone to clamping loosening, causing the workpiece to move, affecting the machining accuracy and quality, and it is necessary to frequently replace and adjust the fixture, which consumes a long time during operation and it is difficult to improve the production efficiency. Summary of the Utility Model

[0003] By providing a device for clamping an electric spindle in an embodiment of the present application, the problems in the prior art that the fixture is prone to clamping loosening, causing the workpiece to move, affecting the machining accuracy and quality, and it is necessary to frequently replace and adjust the fixture, consuming a long time during operation and it is difficult to improve the production efficiency are solved.

[0004] The technical solution adopted in the embodiment of the present application is as follows.

[0005] A device for clamping an electric spindle includes a base, a support member provided on the base, an adjusting member rotatable on the support member, a clamping member for clamping the surface of the electric spindle, and an adjusting mechanism for adjusting the acting end of the clamping member; there are two sets of the support members arranged oppositely; a rack is provided on the adjusting member; the rack corresponds to the clamping member; the clamping member is rotatable on the support member; there are three sets of the clamping members arranged in a circumferential array; the adjusting mechanism is provided on the support member.

[0006] Further technical solution is: the clamping member includes a rotating rod, a gear provided on the rotating rod, and a pressing wheel rotatable on the rotating rod; the rotating rod is rotatable on the support member; the center of the gear corresponds to the rotation axis of the rotating rod; the gear meshes with the rack.

[0007] Further technical solution is: the adjusting mechanism includes a first block, a second block provided on the support member, a first shaft rotatable on the first block, a second shaft rotatable on the second block, and a moving member rotatable on the first shaft; the first block is provided on the adjusting member; the acting end of the moving member is threadedly penetrated through the second shaft; when the moving member is rotated, the first block and the second block approach or move away from each other relatively.

[0008] A further technical solution is as follows: a first groove is formed in the adjusting member; the second block slides in the first groove.

[0009] A further technical solution is as follows: the moving member is a bolt.

[0010] A further technical solution is as follows: a limiting member is threadedly connected to the supporting member; one end of the limiting member presses against the side wall of the adjusting member; a second groove is formed in the adjusting member; the limiting member slides in the second groove.

[0011] A further technical solution is as follows: the limiting member is an internal hexagonal bolt.

[0012] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0013] 1. Since the base is arranged on the ground, a supporting member is arranged on the base, the supporting member is in an integral arc shape, a rotating connection is provided between the supporting member and an adjusting member, the adjusting member is in a cylindrical shape, the adjusting member is sleeved on the supporting member, a rack is arranged on the adjusting member, the rack is located on the inner side wall of the adjusting member, three groups of racks are arranged in a circumferential array, a rotating rod is rotatably connected to the supporting member, a gear is arranged at the rotating shaft of the rotating rod, the gear rotates synchronously with the rotating rod, the gear meshes with the rack, when the adjusting member rotates, the gear is driven to rotate, the other end of the rotating rod is rotatably connected to a pressing wheel, the pressing wheel presses against the side wall of the electric spindle, a first block is arranged on the adjusting member, a first shaft is rotatably connected to the first block, a moving member is rotatably connected to the first shaft, the moving member is a bolt and is in a long strip shape, a first groove is formed in the adjusting member, a second block is slidably connected in the first groove, a second shaft is rotatably connected to the second block, the moving member is threadedly inserted through the second shaft, when the moving member rotates, the first block and the second block are relatively close to or away from each other, thereby driving the rack to rotate, causing the gear to rotate, driving the pressing wheel to approach or move away from the electric spindle, a limiting member is threadedly connected to the supporting member, the limiting member is an internal hexagonal bolt, a second groove is formed in the adjusting member, the limiting member slides in the second groove, the limiting member is an internal hexagonal bolt, and the top of the limiting member presses against the side wall of the adjusting member to fix the angle of the adjusting member, thereby realizing quick clamping of the electric spindle and quick removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural view of the device for clamping an electric spindle in the present utility model.

[0015] Figure 2 It is a sectional view of the device for clamping an electric spindle in the present utility model.

[0016] Figure 3 It is a sectional view of the device for clamping an electric spindle in the present utility model.

[0017] Figure 4 isFigure 1 Partial enlarged view of A.

[0018] In the figure: 1, base; 2, support member; 21, limiting member; 3, adjusting member; 31, rack; 32, first groove; 33, second groove; 4, clamping member; 41, rotating rod; 42, gear; 43, pressing wheel; 5, adjusting mechanism; 51, first block; 52, second block; 53, first shaft; 54, second shaft; 55, moving member. Specific implementation manner

[0019] By providing a device for clamping an electric spindle in an embodiment of the present application, the problems in the prior art that the fixture is prone to clamping looseness, causing the workpiece to move, affecting the machining accuracy and quality, and requiring frequent replacement and adjustment of the fixture, consuming a long time during operation, and being difficult to improve the production efficiency are solved.

[0020] The technical solution in the embodiment of the present application is to solve the above problems, and the general idea is as follows

[0021] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the specification drawings and specific implementation manners.

[0022] A device for clamping an electric spindle includes a base 1, a support member 2 arranged on the base 1, an adjusting member 3 rotating on the support member 2, a clamping member 4 clamping the surface of the electric spindle, and an adjusting mechanism 5 for adjusting the acting end of the clamping member 4; there are two groups of support members 2 arranged oppositely; a rack 31 is arranged on the adjusting member 3; the rack 31 corresponds to the clamping member 4; the clamping member 4 rotates on the support member 2; there are three groups of clamping members 4 arranged in a circumferential array; the adjusting mechanism 5 is arranged on the support member 2.

[0023] The clamping member 4 includes a rotating rod 41, a gear 42 arranged on the rotating rod 41, and a pressing wheel 43 rotating on the rotating rod 41; the rotating rod 41 rotates on the support member 2; the center of the gear 42 corresponds to the rotation axis of the rotating rod 41; the gear 42 meshes with the rack 31.

[0024] The adjusting mechanism 5 includes a first block 51, a second block 52 arranged on the support member 2, a first shaft 53 rotating on the first block 51, a second shaft 54 rotating on the second block 52, and a moving member 55 rotating on the first shaft 53; the first block 51 is arranged on the adjusting member 3; the acting end of the moving member 55 is threadedly inserted through the second shaft 54; when the moving member 55 rotates, the first block 51 and the second block 52 approach or move away from each other relatively.

[0025] A first groove 32 is formed on the adjusting member 3; the second block 52 slides in the first groove 32.

[0026] The moving member 55 is a bolt.

[0027] A limiting member 21 is threadedly connected to the support member 2; one end of the limiting member 21 presses against the side wall of the adjusting member 3; a second groove 33 is formed in the adjusting member 3; the limiting member 21 slides in the second groove 33.

[0028] The limiting member 21 is an internal hexagonal bolt.

[0029] The base 1 is arranged on the ground, and a support member 2 is arranged on the base 1. The support member 2 is in an integral arc shape. An adjusting member 3 is rotatably connected to the support member 2. The adjusting member 3 is in a cylindrical shape. The adjusting member 3 is sleeved on the support member 2. A rack 31 is arranged on the adjusting member 3. The rack 31 is located on the inner side wall of the adjusting member 3. Three groups of racks 31 are arranged in a circumferential array. A rotating rod 41 is rotatably connected to the support member 2. A gear 42 is arranged at the rotating shaft of the rotating rod 41. The gear 42 rotates synchronously with the rotating rod 41. The gear 42 meshes with the rack 31. When the adjusting member 3 rotates, it drives the gear 42 to rotate. The other end of the rotating rod 41 is rotatably connected to a pressing wheel 43. The pressing wheel 43 presses against the side wall of the electric spindle. A first block 51 is arranged on the adjusting member 3. A first shaft 53 is rotatably connected to the first block 51. A moving member 55 is rotatably connected to the first shaft 53. The moving member 55 is a bolt and is in a long strip shape. A first groove 32 is formed in the adjusting member 3. A second block 52 is slidably connected in the first groove 32. A second shaft 54 is rotatably connected to the second block 52. The moving member 55 is threadedly inserted through the second shaft 54. When the moving member 55 rotates, the first block 51 and the second block 52 move relatively closer or farther away, thereby driving the rack 31 to rotate, causing the gear 42 to rotate, and driving the pressing wheel 43 to move closer to or farther away from the electric spindle. A limiting member 21 is threadedly connected to the support member 2. The limiting member 21 is an internal hexagonal bolt. A second groove 33 is formed in the adjusting member 3. The limiting member 21 slides in the second groove 33. The limiting member 21 is an internal hexagonal bolt. The top of the limiting member 21 presses against the side wall of the adjusting member 3 to fix the angle of the adjusting member 3.

[0030] Since the base 1 is arranged on the ground, a support member 2 is arranged on the base 1. The support member 2 is in the shape of a complete circular arc. An adjusting member 3 is rotatably connected to the support member 2. The adjusting member 3 is in the shape of a cylinder. The adjusting member 3 is sleeved on the support member 2. A rack 31 is arranged on the adjusting member 3. The rack 31 is located on the inner side wall of the adjusting member 3. Three groups of racks 31 are arranged in a circumferential array. A rotating rod 41 is rotatably connected to the support member 2. A gear 42 is arranged at the rotating shaft of the rotating rod 41. The gear 42 rotates synchronously with the rotating rod 41. The gear 42 meshes with the rack 31. When the adjusting member 3 rotates, it drives the gear 42 to rotate. The other end of the rotating rod 41 is rotatably connected to a pressing wheel 43. The pressing wheel 43 presses against the side wall of the electric spindle. A first block 51 is arranged on the adjusting member 3. A first shaft 53 is rotatably connected to the first block 51. A moving member 55 is rotatably connected to the first shaft 53. The moving member 55 is a bolt and the moving member 55 is in a long strip shape. A first groove 32 is formed in the adjusting member 3. A second block 52 is slidably connected in the first groove 32. A second shaft 54 is rotatably connected to the second block 52. The moving member 55 is threadedly penetrated through the second shaft 54. When the moving member 55 is rotated, the first block 51 and the second block 52 are relatively close to or away from each other, thereby driving the rack 31 to rotate, causing the gear 42 to rotate, and driving the pressing wheel 43 to approach or move away from the electric spindle. A limiting member 21 is threadedly connected to the support member 2. The limiting member 21 is an internal hexagonal bolt. A second groove 33 is formed in the adjusting member 3. The limiting member 21 slides in the second groove 33. The limiting member 21 is an internal hexagonal bolt. The top of the limiting member 21 presses against the side wall of the adjusting member 3 to fix the angle of the adjusting member 3, thereby realizing rapid clamping of the electric spindle and rapid removal.

[0031] Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications once they learn the basic creative concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0032] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for clamping an electric spindle, characterized in that, It includes a base (1), a support member (2) disposed on the base (1), an adjusting member (3) rotatable on the support member (2), a clamping member (4) for clamping the surface of the electric spindle, and an adjusting mechanism (5) for adjusting the acting end of the clamping member (4); there are two sets of the support members (2) arranged oppositely; a rack (31) is provided on the adjusting member (3); the rack (31) corresponds to the clamping member (4); the clamping member (4) is rotatable on the support member (2); there are three sets of the clamping members (4) arranged in a circumferential array; the adjusting mechanism (5) is provided on the support member (2).

2. The device for clamping an electric spindle according to claim 1, characterized in that, The clamping member (4) includes a rotating rod (41), a gear (42) disposed on the rotating rod (41), and a pressing wheel (43) rotatable on the rotating rod (41); the rotating rod (41) is rotatable on the support member (2); the center of the gear (42) corresponds to the rotation axis of the rotating rod (41); the gear (42) meshes with the rack (31).

3. The device for clamping an electric spindle according to claim 1, characterized in that, The adjusting mechanism (5) includes a first block (51), a second block (52) disposed on the support member (2), a first shaft (53) rotatable on the first block (51), a second shaft (54) rotatable on the second block (52), and a moving member (55) rotatable on the first shaft (53); the first block (51) is disposed on the adjusting member (3); the acting end of the moving member (55) is threadedly inserted through the second shaft (54); when the moving member (55) is rotated, the first block (51) and the second block (52) approach or move away from each other relatively.

4. The device for clamping an electric spindle according to claim 3, characterized in that, A first groove (32) is formed on the adjusting member (3); the second block (52) slides in the first groove (32).

5. The device for clamping an electric spindle according to claim 3, characterized in that, The moving member (55) is a bolt.

6. The device for clamping an electric spindle according to claim 1, characterized in that, A limiting member (21) is threadedly connected to the support member (2); one end of the limiting member (21) presses against the side wall of the adjusting member (3); a second groove (33) is formed on the adjusting member (3); the limiting member (21) slides in the second groove (33).

7. The device for clamping an electric spindle according to claim 6, characterized in that, The limiting member (21) is an internal hexagonal bolt.

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