Spindle locking device

Abstract

The utility model belongs to the technical field of main shaft locking, and particularly discloses a main shaft locking device which comprises a bottom plate, a bottom support, a fixing column and a clamping plate, the bottom support is arranged in the middle of the upper portion of the bottom plate, two connecting plates are fixed to the side edge of the bottom plate, a support is arranged above the bottom support, and the fixing column penetrates through the middle of the bottom support. Parallel sliding grooves are formed in the fixing columns, bidirectional lead screws are arranged in the sliding grooves, the ends of the bidirectional lead screws are rotationally connected to connecting plates, a driving motor is arranged on the side edge of one connecting plate, a driving shaft of the driving motor is connected with the bidirectional lead screws, and two lead screw sliding blocks are symmetrically connected to the bidirectional lead screws in a threaded mode; the two lead screw sliding blocks are located on the two sides of the bottom support respectively, a supporting plate is fixed to the upper portions of the lead screw sliding blocks, and a locking plate is fixed to the end of the supporting plate. The spindle is placed on the support, then the driving motor is used for driving the two-way lead screw to rotate, the two-way lead screw can be used for driving the lead screw sliding block, the supporting plate and the locking plate to be close to the spindle, and the locking plate is used for locking and fixing the spindle.

Description

Technical Field

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

[0002] At present, the spindle of a machine tool is the axis that drives the workpiece or tool to rotate on the machine tool. It is mainly used to transmit motion and torque in the machine. Its stability directly affects the accuracy and surface roughness of the processed parts. Therefore, the spindle plays a vital role in the machine tool.

[0003] Existing spindle locking devices are generally manually locked, which is very cumbersome. Therefore, some people think of locking the spindle by driving a clamping plate with a motor. For example, Chinese utility model patent with announcement number CN214053667U specifically discloses a machine tool spindle locking device.

[0004] However, during actual use of the above-mentioned spindle locking device, people will find that the device uses two devices to drive the turbine respectively, and uses the turbine to drive the screw to move. However, since there is no restriction on the screw, it is easy for the screw to drive the clamping plate to rotate together, and the motors on both sides are driven separately, it is easy for the extension lengths of the screws on both sides to be different, affecting the clamping accuracy. Utility Model Content

[0005] The purpose of the utility model is to provide a spindle locking device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a spindle locking device, comprising a base plate, a base support, a fixing column and a clamping plate, wherein a base support is provided in the middle position above the base plate, and two connecting plates are fixed on the side of the base plate, a support is provided above the base support, a fixing column runs through the middle of the base support, and a sliding groove parallel to each other is opened on the fixing column, a two-way screw rod is provided in the sliding groove, and the end of the two-way screw rod is rotatably connected to the connecting plate, and a driving motor is provided on the side of the connecting plate, and the driving shaft of the driving motor is connected to the two-way screw rod, and two screw rod sliders are symmetrically threaded on the two-way screw rod, and the two screw rod sliders are respectively located on both sides of the base and are slidably connected in the sliding groove, a supporting plate is fixed above the screw rod slider, and a locking plate is fixed at the end of the supporting plate; by placing the main shaft on the support, and then using the driving motor to drive the two-way screw rod to rotate, the two-way screw rod can be used to drive the screw rod slider, the supporting plate and the locking plate to approach the main shaft, and the locking plate is used to lock and fix the main shaft.

[0007] Preferably, the support and the locking plate are both arc-shaped plates to match the main shaft.

[0008] Preferably, the support plate is L-shaped.

[0009] Preferably, reinforcing ribs are provided between the support plate and the locking plate, and the reinforcing ribs are used to improve the supporting effect.

[0010] Preferably, mounting holes are provided at the corners of the base plate, and the mounting holes are used to install the device on other equipment.

[0011] Preferably, mutually parallel positioning rods are arranged above the fixing columns, the positioning rods penetrate the support plate, and both ends of the positioning rods are respectively fixed on the support and the connecting plate. The positioning rods are mainly arranged to improve the stability of the support plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model places the main shaft on the support, and then drives the bidirectional lead screw to rotate by driving the motor, and utilizes the bidirectional lead screw to drive the lead screw slider to move, so as to drive the locking plate to approach and clamp the main shaft, thereby locking the main shaft. The operation is simple and easy to understand, and a single motor is used for driving, which reduces the cost. The bidirectional lead screw can be driven at the same time, avoiding the phenomenon that the locking plates at both ends are in different positions, and effectively improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 It is a partial cross-sectional structural schematic diagram of the utility model.

[0016] In the figure: 1, bottom plate; 101, mounting hole; 2, bottom bracket; 201, support; 3, fixing column; 301, slide groove; 4, connecting plate; 5, support plate; 501, reinforcing rib; 6, locking plate; 7, driving motor; 8, bidirectional screw; 9, screw slider; 10, positioning rod. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] See also Figure 1-2 The utility model provides a technical solution: a spindle locking device, including a base plate 1, a base support 2, a fixed column 3 and a clamping plate, a base support 2 is provided in the middle position above the base plate 1, two connecting plates 4 are fixed on the side of the base plate 1, a support 201 is provided above the base support 2, a fixed column 3 runs through the middle of the base support 2, and the fixed column 3 is provided with slide grooves 301 parallel to each other, a bidirectional screw rod 8 is provided in the slide groove 301, and the end of the bidirectional screw rod 8 is rotatably connected to the connecting plate 4, a driving motor 7 is provided on the side of one of the connecting plates 4, and the driving shaft of the driving motor 7 is connected to the bidirectional screw rod 8, and two screw rod sliders 9 are symmetrically threadedly connected on the bidirectional screw rod 8, the two screw rod sliders 9 are respectively located on both sides of the base support 2 and are slidably connected in the slide groove 301, a supporting plate 5 is fixed above the screw rod slider 9, and a locking plate 6 is fixed at the end of the support plate 5.

[0021] By placing the main shaft on the support 201, and then using the driving motor 7 to drive the bidirectional screw 8 to rotate, the bidirectional screw 8 can be used to drive the screw slider 9, the support plate 5 and the locking plate 6 to approach the main shaft, and the locking plate 6 is used to lock and fix the main shaft. Figure 1-2 Above the middle support is the main axis.

[0022] Furthermore, the support 201 and the locking plate 6 are both arc-shaped plates to match the main shaft.

[0023] Furthermore, the support plate 5 is L-shaped.

[0024] Furthermore, a reinforcing rib 501 is provided between the support plate 5 and the locking plate 6 , and the reinforcing rib 501 is used to improve the supporting effect.

[0025] Furthermore, a mounting hole 101 is provided at a corner of the base plate 1 , and the mounting hole 101 is used to install the device on other equipment.

[0026] Furthermore, mutually parallel positioning rods 10 are arranged above the fixing column 3, the positioning rods 10 penetrate the support plate 5, and the two ends of the positioning rods 10 are respectively fixed on the support 201 and the connecting plate 4, and the positioning rods are mainly arranged to improve the stability of the support plate.

[0027] In summary, when the device is in use, the mounting hole 101 on the bottom plate 1 is first used to fix the device. The spindle only needs to be placed on the support 201 above the bottom bracket 2, and then the drive motor 7 is started. The drive motor 7 is used to drive the bidirectional screw 8 to rotate, so that the bidirectional screw 8 drives the screw slider 9 to rotate, and the screw slider 9 is used to drive the support plate 5 to move, so that the support plate 5 drives the locking plate 6 to approach and clamp the spindle, thereby locking the spindle. When canceling the locking, it is only necessary to start the reverse output of the drive motor 7 to drive the bidirectional screw 8 to rotate in the opposite direction, so that the bidirectional screw 8 drives the screw slider 9 to move back, and the screw slider 9 drives the locking plate 6 to separate from the spindle through the support plate 5, and the locking can be canceled.

[0028] It is worth noting that the entire device is controlled by a main control button. Since the device matched with the control button is a common device and belongs to the existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spindle locking device, characterized in that: The invention comprises a bottom plate (1), a bottom bracket (2), a fixed column (3) and a clamping plate, wherein a bottom bracket (2) is arranged in the middle position above the bottom plate (1), two connecting plates (4) are fixed on the sides of the bottom plate (1), a support (201) is arranged above the bottom bracket (2), a fixed column (3) runs through the middle of the bottom bracket (2), and a sliding groove (301) parallel to each other is opened on the fixed column (3), a bidirectional screw rod (8) is arranged in the sliding groove (301), and the end of the bidirectional screw rod (8) is rotatably connected to the connecting plate (4), a driving motor (7) is arranged on the side of one of the connecting plates (4), and the driving shaft of the driving motor (7) is connected to the bidirectional screw rod (8), and two screw rod sliders (9) are symmetrically threadedly connected on the bidirectional screw rod (8), and the two screw rod sliders (9) are respectively located on both sides of the bottom bracket (2) and are slidably connected in the sliding groove (301), a supporting plate (5) is fixed above the screw rod slider (9), and a locking plate (6) is fixed at the end of the supporting plate (5).

2. A spindle locking device according to claim 1, characterized in that: The support (201) and the locking plate (6) are both arc-shaped plates.

3. A spindle locking device according to claim 1, characterized in that: The support plate (5) is L-shaped.

4. A spindle locking device according to claim 1, characterized in that: A reinforcing rib (501) is provided between the support plate (5) and the locking plate (6).

5. A spindle locking device according to claim 1, characterized in that: A mounting hole (101) is provided at a corner of the bottom plate (1).

6. A spindle locking device according to claim 1, characterized in that: Positioning rods (10) parallel to each other are arranged above the fixing columns (3), the positioning rods (10) penetrate the supporting plate (5), and the two ends of the positioning rods (10) are respectively fixed on the support (201) and the connecting plate (4).

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