Clamping device for motor driving shaft

Abstract

The utility model relates to the technical field of motor driving shafts, and discloses a motor driving shaft clamping device which comprises a base, a frame is fixedly connected to the upper portion of the base through supporting columns, a placing base is fixedly connected to the bottom of the inner surface of the frame, two sets of clamping assemblies are arranged on the inner surface of the frame, and the placing base is fixedly connected to the bottom of the inner surface of the frame. The clamping assembly comprises a sliding strip, the front face of the sliding strip is fixedly connected with a first rack through a connecting block, a gear assembly is arranged below the first rack and comprises a first gear, a second gear and a third gear, and the lower portions of the first gear and the third gear are meshed with a second rack. A bearing assembly is arranged below the second rack. The second rack slides rightwards on the bearing assembly to drive the first gear, the second gear and the third gear to rotate, then the two clamping assemblies are driven to conduct inward clamping at the same time, and the effect of facilitating centered clamping is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor drive shafts, in particular to a motor drive shaft clamping device. Background Art

[0002] The electric motor, commonly known as the motor, refers to an electromagnetic device that realizes the conversion or transmission of electrical energy based on the law of electromagnetic induction. It is basically composed of a stator, a rotor and other accessories. It can be roughly divided into DC motors, asynchronous motors, synchronous motors, reduction motors, variable frequency motors and linear motors, etc. Its drive shaft components need to be clamped during processing.

[0003] For example, the Chinese patent publication number CN220279452U, "A clamping device for processing a motor drive shaft", relates to the technical field of motor accessories, and discloses a clamping device for processing a motor drive shaft, including a processing table, a clamping mechanism is arranged above the processing table, a driving mechanism is arranged inside the processing table, and the clamping mechanism includes a mounting frame, a slider is slidably connected inside the mounting frame, an arc-shaped clamping block is fixedly connected to one side of the slider, and a threaded handle is rotatably connected to one side of the arc-shaped clamping block. The clamping device for processing a motor drive shaft first rotates two threaded handles forward, and under the limitation of the threaded through hole, the arc-shaped clamping blocks on both sides are driven to move in opposite directions by the slider, and then the motor drive shaft to be processed is placed between the arc-shaped clamping blocks on both sides, and finally the threaded handle is reversed. As can be seen from the above, the arc-shaped clamping blocks on both sides move relatively until the anti-slip gasket fits the outer side of the motor drive shaft, and the clamping of motor drive shafts of different sizes is achieved by adjusting the spacing between the arc-shaped clamping blocks on both sides.

[0004] However, in actual use, when clamping the motor drive shaft, it is necessary to simultaneously rotate the two threaded rods on both sides of the mounting frame so that the clamping block can clamp the motor drive shaft. If the threaded rods on both sides cannot rotate synchronously, the motor drive shaft cannot be clamped in the center, which makes it inconvenient to achieve the effect of center clamping by synchronous clamping of the clamping blocks on both sides. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a motor drive shaft clamping device.

[0007] (II) Technical solution

[0008] To achieve the above object, the utility model provides the following technical solutions: a motor drive shaft clamping device, comprising a base, a frame is fixedly connected to the top of the base through a support column, a placement seat is fixedly connected to the bottom of the inner surface of the frame, a clamping assembly is arranged on the inner surface of the frame, and the number of the clamping assemblies is two groups, and the two groups of the clamping assemblies are symmetrically arranged on the left and right sides of the placement seat respectively;

[0009] The clamping assembly includes a sliding bar, which is movably connected to the frame, and the front side of the sliding bar is fixedly connected to a first rack through a connecting block, and the first rack and the sliding bar are fixedly connected to a clamping plate at one end facing the placement seat, and a gear assembly is arranged below the first rack, and the gear assembly includes a first gear, a second gear and a third gear, and the first gear, the second gear and the third gear are rotatably connected to the front side of the frame, a second rack is meshed below the first gear and the third gear, and a bearing assembly is arranged below the second rack.

[0010] Preferably, the bearing assembly includes a bearing seat, the bearing seat is fixedly connected to the base via a support column, a second slide rail is fixedly connected above the bearing seat, the second slide rail is slidably connected to the bottom of the second rack, and an adjustment assembly is arranged on the front side of the second rack.

[0011] Preferably, the adjustment assembly includes a support plate, the support plate is fixedly connected to the top of the bearing seat, a screw rod is threaded through the left side of the support plate, the left end of the screw rod is fixedly connected to a docking seat, the right end of the screw rod is rotatably connected to a push plate, the push plate is fixedly connected to the front side of the second rack, and a driving assembly is arranged on the left side of the docking seat.

[0012] Preferably, the driving assembly includes a first slide rail, the first slide rail is fixedly connected to the top of the bearing seat, a sliding seat is slidably connected to the top of the first slide rail, a motor is fixedly installed above the sliding seat, and the output end of the motor is fixedly connected to a docking joint via a coupling, and the docking joint is adapted to the docking seat.

[0013] Preferably, the number of the support columns is four, and they are arranged in pairs under the bearing seat and the frame.

[0014] Preferably, the first gear is meshed with the first rack located on the right side, the third gear is meshed with the first rack located on the left side, and the second gear is meshed with the third gear.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a motor drive shaft clamping device, which has the following beneficial effects:

[0017] 1. This motor-driven shaft clamping device drives the first gear, the second gear and the third gear to rotate by sliding the second rack to the right on the bearing assembly, thereby driving the two sets of clamping assemblies to clamp inward at the same time, which facilitates centering clamping.

[0018] 2. This motor drive shaft clamping device docks with the adjustment component by sliding the drive component on the bearing component. After docking, the drive component can drive the adjustment component to slide on the second rack, which facilitates clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is the right view of the overall structure of the utility model;

[0022] Figure 3 This is a rear view of the overall structure of the utility model;

[0023] Figure 4 For this utility model Figure 1 A schematic diagram of the structure enlargement in the middle;

[0024] Figure 5 For this utility model Figure 1 Enlarged schematic diagram of the structure at point B in the middle.

[0025] In the figure: 1. base; 2. support column; 3. frame; 4. placement seat; 5. clamping assembly; 501. sliding bar; 502. connecting block; 503. first rack; 504. clamping plate; 6. gear assembly; 601. first gear; 602. second gear; 603. third gear; 604. second rack; 7. bearing assembly; 701. bearing seat; 702. second slide rail; 8. adjustment assembly; 801. support plate; 802. screw; 803. docking seat; 804. push plate; 9. driving assembly; 901. first slide rail; 902. sliding seat; 903. motor; 904. docking joint. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] Example 1

[0028] like Figure 1-5As shown, the utility model provides a motor drive shaft clamping device, including a base 1, a frame 3 is fixedly connected to the top of the base 1 through a support column 2, the frame 3 is square, a placement seat 4 is fixedly connected to the bottom of the inner surface of the frame 3, an arc-shaped concave surface is arranged above the placement seat 4, a clamping assembly 5 is arranged on the inner surface of the frame 3, the number of the clamping assembly 5 is two groups, and the two groups of clamping assemblies 5 are symmetrically arranged on the left and right sides of the placement seat 4, respectively, the clamping assembly 5 includes a sliding bar 501, the sliding bar 501 is movably penetrated by the frame 3, a sliding groove is arranged on the sliding bar 501, a first rack 503 is fixedly connected to the front of the sliding bar 501 through a connecting block 502, the first rack 503 and the sliding bar 501 are fixedly connected to one end of the placement seat 4 with a clamping plate 504, a gear assembly 6 is arranged below the first rack 503, the gear assembly 6 includes a first gear 601, a second gear 602 and a third gear 603, the first gear 601, the second gear 602 and the third gear 603 have the same size, The first gear 601, the second gear 602 and the third gear 603 are rotatably connected to the front of the frame 3, the first gear 601 is meshed with the lower part of the first rack 503 located on the right side, the third gear 603 is meshed with the lower part of the first rack 503 located on the left side, the second gear 602 is meshed with the lower part of the third gear 603, a second rack 604 is meshed below the first gear 601 and the third gear 603, a bearing assembly 7 is arranged below the second rack 604, the bearing assembly 7 includes a bearing seat 701, the bearing seat 701 is fixedly connected to the base 1 through a support column 2, the number of the support columns 2 is four, and two of them are arranged below the bearing seat 701 and the frame 3 respectively, a second slide rail 702 is fixedly connected above the bearing seat 701, the second slide rail 702 is slidably connected to the lower part of the second rack 604, the second slide rail 702 can limit the second rack 604 from sliding laterally above it so that it will not fall off the second slide rail 702, and an adjustment assembly 8 is arranged on the front of the second rack 604.

[0029] In this embodiment, the second rack 604 slides rightward on the bearing assembly 7 to drive the first gear 601, the second gear 602 and the third gear 603 to rotate, thereby driving the two groups of clamping assemblies 5 to clamp inward at the same time, which facilitates center clamping.

[0030] Example 2

[0031] like Figure 1-5As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the adjustment component 8 includes a support sheet 801, the support sheet 801 is fixedly connected to the upper part of the bearing seat 701, a screw rod 802 is threaded through the left side of the support sheet 801, the left end of the screw rod 802 is fixedly connected to the docking seat 803, the right end of the screw rod 802 is rotatably connected to the push sheet 804, the push sheet 804 is fixedly connected to the front of the second rack 604, and a driving component 9 is arranged on the left side of the docking seat 803, and the driving component 9 includes a first slide rail 9 01, the first slide rail 901 is fixedly connected to the top of the bearing seat 701, and a sliding seat 902 is slidably connected to the top of the first slide rail 901. The first slide rail 901 can limit the sliding seat 902 from sliding horizontally thereon so as not to fall off the first slide rail 901. A motor 903 is fixedly installed above the sliding seat 902, and a docking joint 904 is fixedly connected to the output end of the motor 903 through a coupling. The docking joint 904 is adapted to the docking seat 803, and the docking joint 904 and the docking seat 803 can be fixed to each other by bolts.

[0032] In this embodiment, the driving component 9 slides on the bearing component 7 to dock with the adjusting component 8. After docking, the driving component 9 can drive the adjusting component 8 to slide the second rack 604, which facilitates clamping.

[0033] The working principle of this motor drive shaft clamping device is described in detail below.

[0034] like Figure 1-5 As shown, when in use, first place the motor drive shaft that needs to be reinforced on the placement seat 4 in the frame 3, and then slide the sliding seat 902 to the right on the first slide rail 901 until the docking head 904 on the motor 903 is inserted into the docking seat 803 and fixed. At this time, the docking head 904 is driven by the motor 903 to drive the docking seat 803 to rotate the screw 802. The rotation of the screw 802 will extend from the right side of the support plate 801. The extension of the screw 802 will also pull the motor 903 to move synchronously. The push plate 804 is driven to the right by the screw 802, and the push plate 804 will drive the second rack 604 to slide right on the second slide rail 702. At this time, the second rack 604 will drive the first gear 601 to rotate counterclockwise, and the second rack 604 will also drive the second gear 602 to rotate counterclockwise, and the second gear 602 will drive the third gear 603 to rotate clockwise. The rotation of the first gear 601 and the third gear 603 will drive the two first racks 503 to slide toward each other, and then drive the two clamps 504 to clamp the motor drive shaft, so as to facilitate centering. When it is necessary to loosen the clamping of the motor drive shaft, the two first racks 503 can slide in opposite directions to each other through the reversal of the motor 903, thereby driving the two clamps 504 to loosen the motor drive shaft.

Claims

1. A motor drive shaft clamping device, comprising a base (1), characterized in that: A frame (3) is fixedly connected to the top of the base (1) via a support column (2); a placement seat (4) is fixedly connected to the bottom of the inner surface of the frame (3); a clamping assembly (5) is arranged on the inner surface of the frame (3); the number of the clamping assemblies (5) is two groups, and the two groups of the clamping assemblies (5) are symmetrically arranged on the left and right sides of the placement seat (4) respectively; The clamping assembly (5) comprises a sliding bar (501), the sliding bar (501) is movably connected to the frame (3), the front of the sliding bar (501) is fixedly connected to a first rack (503) through a connecting block (502), the first rack (503) and the sliding bar (501) are fixedly connected to a clamping plate (504) at one end facing the placement seat (4), a gear assembly (6) is arranged below the first rack (503), the gear assembly (6) comprises a first gear (601), a second gear (602) and a third gear (603), the first gear (601), the second gear (602) and the third gear (603) are rotatably connected to the front of the frame (3), a second rack (604) is meshed below the first gear (601) and the third gear (603), and a bearing assembly (7) is arranged below the second rack (604).

2. A motor drive shaft clamping device according to claim 1, characterized in that: The bearing assembly (7) comprises a bearing seat (701), the bearing seat (701) is fixedly connected to the base (1) via a support column (2), a second slide rail (702) is fixedly connected above the bearing seat (701), the second slide rail (702) is slidably connected to the bottom of the second rack (604), and an adjustment assembly (8) is arranged on the front of the second rack (604).

3. A motor drive shaft clamping device according to claim 2, characterized in that: The adjustment assembly (8) comprises a support plate (801), wherein the support plate (801) is fixedly connected to the upper part of the bearing seat (701), a screw rod (802) is threadedly penetrated through the left side of the support plate (801), the left end of the screw rod (802) is fixedly connected to a docking seat (803), the right end of the screw rod (802) is rotatably connected to a push plate (804), the push plate (804) is fixedly connected to the front of the second rack (604), and a driving assembly (9) is arranged on the left side of the docking seat (803).

4. A motor drive shaft clamping device according to claim 3, characterized in that: The driving assembly (9) comprises a first slide rail (901), the first slide rail (901) is fixedly connected to the top of the bearing seat (701), a sliding seat (902) is slidably connected to the top of the first slide rail (901), a motor (903) is fixedly installed on the top of the sliding seat (902), and an output end of the motor (903) is fixedly connected to a docking joint (904) via a coupling, and the docking joint (904) is adapted to the docking seat (803).

5. The motor drive shaft clamping device according to claim 2, characterized in that: The number of the support columns (2) is four, and they are arranged in pairs below the bearing seat (701) and the frame (3).

6. The motor drive shaft clamping device according to claim 1, characterized in that: The first gear (601) is meshed with the first rack (503) located on the right side, the third gear (603) is meshed with the first rack (503) located on the left side, and the second gear (602) is meshed with the third gear (603).

Images