Quick tool changing spindle

Abstract

The utility model discloses a quick tool changing main shaft which comprises a main shaft body, a drill bit and a clamping structure, and one end of the drill bit is detachably installed in the main shaft body and can rotate along with the main shaft body; the clamping structure comprises a sliding part and a clamping part, the sliding part is arranged outside the main shaft body in an up-down moving mode, the clamping part is movably arranged between the sliding part and the main shaft body, and one part of the clamping part can penetrate through the main shaft body to be connected with the drill bit in a clamping mode; the sliding piece can move between a first position and a second position; at the first position, the sliding piece enables the clamping piece to be clamped with the drill bit; at the second position, the clamping piece can not be clamped with the drill bit; whether the clamping piece is clamped with the drill bit or not is controlled by driving the sliding piece to move, so that the drill bit can be fixed on the main shaft body or taken out from the main shaft body, and as only the sliding piece needs to be driven to move when the drill bit is assembled and disassembled, the drill bit is more convenient to assemble and disassemble, and time and labor are not wasted.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of plate material drilling, especially relates to a quick tool changing spindle. BACKGROUND

[0002] The drill array needs to be used when drilling plate material, and the existing drill array is time-consuming and laborious when installing drill bits and is inconvenient when disassembling. INVENTION CONTENTS

[0003] The utility model discloses a quick tool changing spindle, which at least solves one of the technical problems existing in the prior art.

[0004] The quick tool changing spindle according to the first aspect of the utility model comprises a spindle body, a drill bit and a clamping structure, one end of the drill bit is detachably installed in the spindle body and can rotate with the spindle body; the clamping structure comprises a sliding member and a clamping member, the sliding member is movably arranged outside the spindle body, the clamping member is movably arranged between the sliding member and the spindle body, and a part of the clamping member can pass through the spindle body and be clamped with the drill bit; the sliding member can move between a first position and a second position, and the second position is above the first position; when the sliding member is in the first position, the clamping member is clamped with the drill bit; when the sliding member is in the second position, the clamping member can be disengaged from the drill bit.

[0005] The quick tool changing spindle according to the utility model has at least the following technical effects: by arranging the movable sliding member outside the spindle body and the movable clamping member between the sliding member and the spindle body, the clamping member can be controlled to be clamped with the drill bit by driving the sliding member to move, so that the drill bit can be fixed on the spindle body or taken out from the spindle body, and since the drill bit only needs to be driven to move when being assembled or disassembled, the assembly and disassembly of the drill bit are more convenient and do not consume time and labor.

[0006] According to some embodiments of the utility model, one end of the spindle body has an installation cavity, one end of the drill bit is detachably installed in the installation cavity, a side wall of the spindle body has a communication hole communicating with the installation cavity, the clamping member is movably arranged in the communication hole, and a part of the clamping member can pass through the communication hole and be clamped with the drill bit.

[0007] According to some embodiments of the utility model, the installation cavity is internally provided with a one-way rotating bearing, the outer side wall of the bearing is fixedly connected with the inner side wall of the installation cavity, and one end of the drill bit is located in the installation cavity and is in clamping connection with the inner side wall of the bearing.

[0008] According to some embodiments of the utility model, the side wall of the drill bit is provided with a groove, the clamping piece is a ball, and a part of the ball can pass through the communication hole and be clamped with the groove.

[0009] According to some embodiments of the utility model, the sliding piece is sleeved outside the main shaft body.

[0010] According to some embodiments of the utility model, the inner side wall of the sliding piece is provided with two protruding parts which are spaced apart in the up-down direction, and a containing cavity is formed between the two protruding parts and the inner side wall of the sliding piece.

[0011] When the sliding piece is in the second position, at least a part of the clamping piece can be moved into the containing cavity.

[0012] According to some embodiments of the utility model, the uppermost protruding part is provided with a step for keeping the clamping piece clamped with the groove.

[0013] When the sliding piece is in the first position, in the radial direction of the main shaft body, the step is located outside the clamping piece so as to keep the clamping piece clamped with the groove under the action of the step.

[0014] According to some embodiments of the utility model, the upper and lower side walls of the groove both comprise an inclined section for facilitating the clamping piece to move out of the groove.

[0015] According to some embodiments of the utility model, a plurality of clamping pieces are provided, and the plurality of clamping pieces are spaced apart in the circumferential direction of the main shaft body.

[0016] Further comprising a driving device, the driving device is used for driving the sliding piece to move up and down.

[0017] According to some embodiments of the utility model, further comprising:

[0018] A resilient piece is arranged between the sliding piece and the main shaft body.

[0019] When the sliding piece deviates from the first position, the resilient piece is biased and exerts a biasing force for moving the sliding piece to the first position.

[0020] Additional aspects and advantages of the present utility model will be partially given in the following description, some will become apparent from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0021] Additional aspects and advantages of the present utility model will become apparent and are readily understood from the following description of the embodiments when considered in conjunction with the accompanying drawings, of which:

[0022] Figure 1 It is the structural schematic drawing of quick tool changing main shaft when the sliding piece is in the first position;

[0023] Figure 2 It is the structural schematic drawing of quick tool changing main shaft when the sliding piece is in the second position;

[0024] Figure 3 It is the explosion view of quick tool changing main shaft;

[0025] Figure 4 It is the structural schematic drawing of the recess of the drill bit and the clamping piece.

[0026] The drawings show that the utility model discloses a quick tool changing main shaft, including main shaft body 100, install the cavity 110, the communicating hole 120, drill 200, recess 210, inclined section 211, clamping structure 300, sliding piece 310, convex part 311, containing cavity 312, step 313, clamping piece 320, bearing 400, elastic piece 500, clamping spring 600, spacer 700. DETAILED DESCRIPTION

[0027] The embodiments of the utility model will be described in detail below, the example of the embodiment is shown in the drawings, wherein the same or similar signs show the same or similar elements or elements with the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and can not be understood as the limitation of the utility model.

[0028] In the description of the utility model, it is understood that the orientation description, such as up, down, front, back, left, right and the like, is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and is not indicative or implied that the device or element must have a specific orientation, a specific orientation and operation, therefore, it can not be understood as the limitation of the utility model.

[0029] In the description of the utility model, the meaning of multiple is two or more than two, greater than, less than, more than, etc. are not included in the number. If it is described as first, second, it is only used for distinguishing technical features for the purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0030] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection should be understood in a broad sense, and the person skilled in the art can determine the specific meaning of the above words in the utility model in combination with the specific content of the technical scheme.

[0031] Referring to Figure 1 , 2 , 3, the quick tool changing spindle according to the utility model embodiment comprises a spindle body 100, a drill bit 200 and a clamping structure 300, one end of the drill bit 200 is detachably installed in the spindle body 100 and can rotate with the spindle body 100; the clamping structure 300 comprises a sliding piece 310 and a clamping piece 320, the sliding piece 310 is movably arranged outside the spindle body 100, the clamping piece 320 is movably arranged between the sliding piece 310 and the spindle body 100, and a part of the clamping piece 320 can pass through the spindle body 100 and be clamped with the drill bit 200; the sliding piece 310 can move between a first position and a second position, and the second position is above the first position (as shown in Figure 1 , 2 As shown in Figure 1 , when in the first position, the sliding piece 310 makes the clamping piece 320 clamped with the drill bit 200; as shown in Figure 2 , when in the second position, the clamping piece 320 can be disengaged from the drill bit 200.

[0032] By arranging the movable sliding piece 310 outside the spindle body 100 and the movable clamping piece 320 between the sliding piece 310 and the spindle body 100, the clamping piece 320 can be controlled whether to be clamped with the drill bit 200 by driving the sliding piece 310 to move, so that the drill bit 200 can be fixed on the spindle body 100 or taken out from the spindle body 100, and since the drill bit 200 only needs to be driven to move the sliding piece 310 when being assembled or disassembled, the assembly and disassembly of the drill bit 200 are more convenient and do not waste time and effort.

[0033] When installing the drill bit 200, as shown in Figure 2 , the sliding piece 310 moves to the second position, and the drill bit 200 is inserted into the spindle body 100, as shown in Figure 1As shown, the sliding member 310 moves to the first position, the clamping member 320 is clamped with the drill bit 200, and then the drill bit 200 is fixed on the spindle body 100, and when working, the rotating spindle body 100 can drive the drill bit 200 to rotate;

[0034] When the drill bit 200 is disassembled, the sliding member 310 moves from the first position to the second position, so that the clamping member 320 is not clamped with the drill bit 200, and then the drill bit 200 can be taken out from the spindle body 100.

[0035] Specifically, the spindle body 100 is connected with the rotating shaft of the motor, or is part of the rotating shaft of the motor.

[0036] In some embodiments of the utility model, as shown in Figure 1 , 2 As shown, one end of the spindle body 100 has a mounting cavity 110, one end of the drill bit 200 is detachably mounted in the mounting cavity 110, the side wall of the spindle body 100 has a communication hole 120 communicating with the mounting cavity 110, and the clamping member 320 is movably arranged in the communication hole 120, and a part of the clamping member 320 can pass through the communication hole 120 and be clamped with the drill bit 200.

[0037] By arranging the communication hole 120, the clamping member 320 and the drill bit 200 are clamped.

[0038] In further embodiments of the utility model, as shown in Figure 1 ,

[0039] When the spindle body 100 rotates in the first direction, the spindle body 100 can drive the drill bit 200 to rotate through the bearing 400, and when the spindle body 100 rotates in the second direction opposite to the first direction, the spindle body 100 can drive the bearing 400 to rotate relative to the drill bit 200.

[0040] The bearing 400 rotates in one direction, so that the drill bit 200 can be inserted into or pulled out of the spindle body 100, and because the bearing 400 rotates in one direction, when the spindle body 100 rotates in the direction in which the bearing 400 cannot rotate, the spindle body 100 can drive the drill bit 200 to rotate.

[0041] Specifically, the bearing is a needle bearing.

[0042] Specifically, the first direction is the clockwise direction, and the second direction is the counterclockwise direction.

[0043] Specifically, one end of the drill bit 200 is connected with the inner side wall of the bearing 400 through a key, so that the drill bit 200 is detachably mounted on the bearing 400.

[0044] In a further embodiment of the present application, as shown in Figure 1 、 2 , the side wall of the drill bit 200 has a groove 210, and the clamping piece 320 is a ball, and a part of the ball can pass through the communication hole 120 and be clamped with the groove 210, so that the clamping piece 320 is more easily moved in the communication hole 120 and is also more easily clamped with the groove 210.

[0045] Specifically, the groove 210 is an annular groove 210, so that the main shaft body 100 drives the drill bit 200 through the bearing 400.

[0046] It is conceivable that the groove 210 can also not be an annular groove 210, and the installation cavity 110 can also not be provided with the bearing 400, and then the main shaft body 100 drives the drill bit 200 to rotate through the clamping piece 320 and the groove 210.

[0047] In a further embodiment of the present application, as shown in Figure 1 、 3 , the sliding piece 310 is movably sleeved on the main shaft body 100, and since the sliding piece 310 is cylindrical, the operator can drive the sliding piece 310 from different directions, which is convenient for assembling and disassembling the drill bit 200.

[0048] In a further embodiment of the present application, the inner side wall of the sliding piece 310 has two protruding portions 311 which are spaced apart in the up-down direction, and the two protruding portions 311 and the inner side wall of the sliding piece 310 enclose a containing cavity 312;

[0049] When in the second position, at least a part of the clamping piece 320 can be moved into the containing cavity 312.

[0050] By being provided with the containing cavity 312, when the clamping piece 320 or the ball is not clamped with the groove 210, the clamping piece 320 or the ball can be moved into the containing cavity 312, thereby ensuring that the drill bit 200 can be removed from the main shaft body 100.

[0051] In a further embodiment of the present application, as shown in Figure 1 , the uppermost protruding portion 311 has a step 313 for keeping the clamping piece 320 clamped with the groove 210.

[0052] When in the first position, in the radial direction of the main shaft body 100, the step 313 is located on the outer side of the clamping piece 320, so that the clamping piece 320 is kept clamped with the groove 210 under the action of the step 313.

[0053] By setting the step 313, the step 313 can push the clamping piece 320 or the ball into the communication hole 120, and can also compress the clamping piece 320 or the ball, so that the clamping piece 320 or the ball is kept clamped with the groove 210, thereby ensuring that the drill bit 200 is stably fixed on the main shaft body 100.

[0054] In further embodiments of the present application, the clamping piece 320 is provided in a plurality, and the plurality of clamping pieces 320 are arranged along the circumferential direction of the main shaft body 100.

[0055] Further comprising a driving device for driving the sliding piece 310 to move up and down.

[0056] By setting the plurality of clamping pieces 320, the drill bit 200 is stably fixed on the main shaft body 100.

[0057] Through the driving device, the sliding piece 310 can be automatically driven to move up and down, and the driving device can be a cylinder or a structure capable of driving the sliding piece 310 to move up and down.

[0058] It can be understood that the sliding piece 310 can also be driven manually.

[0059] In some embodiments of the present application, as shown in Figure 1 Further comprising:

[0060] The elastic member 500 is arranged between the sliding piece 310 and the main shaft body 100.

[0061] When the sliding piece 310 deviates from the first position, the elastic member 500 is biased and exerts a biasing force to move the sliding piece 310 to the first position.

[0062] By setting the elastic member 500, the clamping piece 320 is kept clamped with the drill bit 200 or the groove 210.

[0063] Specifically, the elastic member 500 is a spring.

[0064] Specifically, as shown in Figure 2 The outer side wall of the main shaft body 100 is provided with a clamping spring 600, the outer side wall of the main shaft body 100 is provided with a spacer sleeve 700, the sliding piece 310 is movably sleeved on the spacer sleeve 700 and the main shaft body 100, and the elastic member 500 is arranged between the upper side of the uppermost protruding portion 311 and the lower side of the spacer sleeve 700.

[0065] By setting the step 313, the step 313 can be clamped with the ball to prevent the sliding piece 310 from being separated from the main shaft body 100 under the elastic action of the spring.

[0066] In the description of the specification, the description of the terms "some embodiments" or "it is conceivable that" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present application. In the description, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0067] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A quick change spindle characterized by, The main shaft body comprises: a main shaft body; a drill bit, one end of which is detachably mounted in the main shaft body and can rotate with the main shaft body; a clamping structure comprising a sliding member and a clamping member, the sliding member being movably arranged outside the main shaft body, the clamping member being movably arranged between the sliding member and the main shaft body, and a part of the clamping member being capable of clamping with the drill bit through the main shaft body; the sliding member can move between a first position and a second position above the first position; in the first position, the sliding member clamps the clamping member with the drill bit; in the second position, the clamping member can be disengaged from the drill bit.

2. The quick tool changer spindle of claim 1, wherein: One end of the main shaft body has a mounting cavity, one end of the drill bit is detachably mounted in the mounting cavity, the side wall of the main shaft body has a communication hole communicating with the mounting cavity, and the clamping member is movably arranged in the communication hole, and a part of the clamping member can pass through the communication hole and clamp with the drill bit.

3. The quick-change tool spindle of claim 2, wherein: A one-way rotating bearing is mounted in the mounting cavity, the outer side wall of the bearing is fixedly connected with the inner side wall of the mounting cavity, one end of the drill bit is located in the mounting cavity and is clamped and connected with the inner side wall of the bearing; when the main shaft body rotates in a first direction, the main shaft body can drive the drill bit to rotate through the bearing, and when the main shaft body rotates in a second direction opposite to the first direction, the main shaft body can drive the bearing to rotate relative to the drill bit.

4. The quick tool changer spindle of claim 2, wherein: The side wall of the drill bit has a groove, the clamping member is a ball, and a part of the ball can pass through the communication hole and clamp with the groove.

5. The quick-change tool spindle of claim 4, wherein: The sliding member is sleeved outside the main shaft body.

6. The quick tool changer spindle of claim 5, wherein: The inner side wall of the sliding member has two protrusions arranged in the up-down direction, and a containing cavity is formed between the two protrusions and the inner side wall of the sliding member; in the second position, at least a part of the clamping member can move into the containing cavity.

7. The quick-change tool spindle of claim 6, wherein: The uppermost protrusion has a step for keeping the clamping member clamped with the groove; in the first position, in the radial direction of the main shaft body, the step is located outside the clamping member to keep the clamping member clamped with the groove under the action of the step.

8. The quick tool changer spindle of claim 6, wherein: The upper and lower side walls of the groove both comprise an inclined section for facilitating the clamping member to move out of the groove.

9. The quick-change tool spindle of claim 5, wherein: The clamping member is provided with a plurality of clamping members arranged in the circumferential direction of the main shaft body; further comprising a driving device for driving the sliding member to move up and down.

10. The quick tool changer spindle of claim 1, wherein: Further comprising: a resilient member arranged between the sliding member and the main shaft body; when the sliding member deviates from the first position, the resilient member is biased and exerts a biasing force to move the sliding member to the first position.

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