Guide sleeve turnover mechanism of deep hole drilling machine tool

Abstract

The utility model relates to the technical field of deep hole drilling machine tools, in particular to a guide sleeve turnover mechanism of a deep hole drilling machine tool, which comprises a main shaft seat, a mounting seat is arranged on the upper side of the main shaft seat, a rotating shaft is rotatably arranged on the mounting seat, the rotating shaft is parallel to the thickness direction of the main shaft seat, the rotating shaft is connected with a mounting plate, and the mounting plate downwards falls on the front surface of the main shaft seat. A guide sleeve body for guiding and supporting a drill bit is fixedly mounted on the mounting plate, a locking assembly is arranged on the front face of the spindle seat and used for locking the mounting plate and unlocking the mounting plate, a driving assembly is further arranged on the upper side of the spindle seat, and the driving assembly is connected with the rotating shaft to drive the rotating shaft to rotate in a reciprocating mode. The efficiency of avoiding the drill bit by the guide sleeve is improved, and the workload of workers is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of deep hole drilling machines, and more specifically, to a guide sleeve flipping mechanism of a deep hole drilling machine. Background Art

[0002] A deep hole drilling machine is a machine tool specially used for deep hole processing. It can accurately drill holes with a depth relative to the diameter. Its drill bit has a long length, so a guide sleeve is usually provided in the deep hole drilling machine to guide and support the drill bit, ensuring that the drill bit remains stable during the drilling process and avoids bending or deviation of the drill bit, thereby improving the accuracy and straightness of the hole.

[0003] In the related art, the guide sleeve is usually fixed to the spindle seat of the deep hole drilling machine by bolt locking. The guide sleeve on the spindle seat will hinder the feed of the drill bit and affect the effective stroke of the drill bit. When processing deeper holes, it is usually necessary to make the effective stroke of the drill bit reach a larger value. Therefore, the guide sleeve needs to be removed from the spindle seat by twisting the bolts. This method is inefficient, affects the processing efficiency, and increases the workload of the staff. Utility Model Content

[0004] In order to solve the problem in the related art that the guide sleeve is fixed by bolts, and when the guide sleeve needs to avoid the drill bit, the guide sleeve needs to be disassembled by twisting the bolts, which is inefficient and increases the workload of the staff, the present application provides a guide sleeve flipping mechanism for a deep hole drilling machine.

[0005] A guide sleeve flipping mechanism for a deep hole drilling machine comprises a spindle seat, a mounting seat is provided on the upper side of the spindle seat, a rotating shaft is rotatably provided on the mounting seat, the rotating shaft is parallel to the thickness direction of the spindle seat, the rotating shaft is connected to a mounting plate, the mounting plate hangs down on the front side of the spindle seat, a guide sleeve body for guiding and supporting the drill bit is fixed on the mounting plate, a locking assembly is provided on the front side of the spindle seat for locking and unlocking the mounting plate, and a driving assembly is also provided on the upper side of the spindle seat, and the driving assembly is connected to the rotating shaft to drive the rotating shaft to rotate reciprocatingly.

[0006] Preferably, the driving assembly includes a first cylinder, a gear, and a rack. The first cylinder is fixedly connected to the main shaft seat, the gear is fixedly connected to the rotating shaft, and the center of the gear is in the same straight line as the axis of the rotating shaft. The rack is connected to the telescopic shaft of the first cylinder, and the rack is engaged with the gear. The first cylinder drives the rack to move back and forth to drive the gear to rotate.

[0007] Preferably, the locking assembly includes an articulated seat, a bent arm, a second cylinder, and an articulated head. The articulated seat is fixed to the front of the spindle seat and is located on one side of the mounting plate. One end of the bent arm is hinged to the articulated seat. A side of the mounting plate close to the spindle seat abuts against the articulated seat. The second cylinder is fixed on the articulated seat. The articulated head is fixedly connected to the telescopic shaft of the second cylinder. The articulated head is articulated to the middle part of the bent arm. The other end of the bent arm is bent. The second cylinder drives the bent arm to swing back and forth so that the bent end of the bent arm presses against a side of the mounting plate away from the spindle seat or moves the bent arm away from the mounting plate.

[0008] Preferably, it also includes a pressure support assembly, which includes a fixed seat, a third cylinder, and a pressure piece. The fixed seat is fixed to the upper side of the main spindle seat, the third cylinder is fixed on the main spindle seat, the pressure piece is connected to the telescopic shaft of the third cylinder, and the third cylinder drives the pressure piece to move back and forth toward the front and back of the main spindle seat.

[0009] Preferably, a slide rail parallel to the length direction of the spindle seat is provided on the side of the mounting plate away from the spindle seat, a slider is slidably provided on the slide rail, the guide sleeve body is connected and fixed to the slider, and a fourth cylinder is also fixed to the side of the mounting plate away from the spindle seat, the telescopic shaft of the fourth cylinder is fixedly connected to the guide sleeve body, and the fourth cylinder drives the guide sleeve body to reciprocate along the length direction of the slide rail.

[0010] Preferably, it also includes a positioning and clamping assembly, which includes a fifth cylinder, a positioning block, and a pressure block, and the fifth cylinder is installed on the spindle seat and is arranged perpendicular to the front side of the spindle seat, the telescopic axis of the fifth cylinder faces the mounting plate, and the outer peripheral wall of the mounting plate is provided with an arc-shaped groove that penetrates its own thickness, and the arc-shaped groove extends with the axis of the rotating shaft as the center of the circle, and the width of the arc-shaped groove matches the diameter of the telescopic axis of the fifth cylinder, and the end of the telescopic axis of the fifth cylinder is fixedly connected to the pressure block, the telescopic axis of the fifth cylinder is stuck in the arc-shaped groove and the pressure block is driven by the fifth cylinder to move toward the direction of the spindle seat so that the pressure block presses the mounting plate away from one side of the spindle seat, and the positioning block is fixed on the front side of the spindle seat and is located on one side of the fifth cylinder and abuts against the outer peripheral wall of the mounting plate.

[0011] The beneficial technical effects of this application are:

[0012] The drill bit and the main shaft are installed on the front side of the main shaft seat. The driving component drives the rotating shaft to rotate so that the mounting plate drives the guide sleeve body to flip toward the upper side of the main shaft seat to achieve the guide sleeve body avoiding the drill when driving the feed. Compared with the existing technology, the driving component can realize the flipping of the guide sleeve body when it is operated, which is more convenient and efficient. There is no need to manually tighten the screws to disassemble the guide sleeve, which reduces the workload of the staff. The mounting plate is locked by the locking component so that when the guide sleeve body guides and supports the drill bit, the mounting plate is not easily driven to deviate by the force of the drill bit, thereby achieving stable support of the drill bit by the guide sleeve body to avoid bending or offset of the drill bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of a guide sleeve flipping mechanism of a deep hole drilling machine tool in this embodiment.

[0014] Figure 2 Schematic diagram of the connection structure between the drive assembly and the mounting base of this embodiment.

[0015] Figure 3 Schematic diagram of the structure of the locking assembly of this embodiment.

[0016] Figure 4 This is a side structural view of the guide sleeve flipping mechanism of a deep hole drilling machine tool in this embodiment.

[0017] Figure 5 Schematic diagram of the structure of the mounting plate of this embodiment.

[0018] Figure markings: 1. Spindle seat; 11. Mounting groove; 2. Mounting seat; 21. Opening; 22. Rotating shaft; 23. Ball bearing; 24. Through groove; 25. Slide groove; 3. Mounting plate; 31. Slide rail; 32. Slider; 33. Fourth cylinder; 35. Arc-shaped groove; 4. Guide sleeve body; 5. Locking assembly; 51. Articulated seat; 511. Movable groove; 52. Bending arm; 53. Second cylinder; 54. Articulated head; 6. Driving assembly; 61. First cylinder; 62. Gear; 63. Rack; 7. Pressure support assembly; 71. Fixed seat; 72. Third cylinder; 73. Pressure piece; 8. Pressing assembly; 81. Fifth cylinder; 82. Positioning block; 83. Pressing block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0020] Reference Figure 1 and Figure 2 , a guide sleeve flip mechanism of a deep hole drilling machine tool, including a spindle seat 1, a mounting seat 2 is provided on the upper side of one end of the spindle seat 1, the mounting seat 2 is provided with an opening 21 running through it, the mounting seat 2 is provided with a rotating shaft 22 in the opening 21, and the mounting seat 2 is embedded with a ball bearing 23 between the hole wall of the opening 21 and the rotating shaft 22, and the rotating shaft 22 is supported by the ball bearing 23 to rotate, and the rotating shaft 22 is parallel to the thickness direction of the spindle seat 1, and the rotating shaft 22 is connected to a mounting plate 3, which hangs down on the front side of the spindle seat 1, and a guide sleeve body 4 for guiding and supporting the drill bit is fixed on the mounting plate 3. The front side of the shaft seat 1 is provided with a locking assembly 5 for locking and unlocking the mounting plate 3. The locking assembly 5 locks the mounting plate 3 so that the mounting plate 3 is not easily displaced by the force of the drill bit when the guide sleeve body 4 guides and supports the drill bit, so that the support of the drill bit by the guide sleeve body 4 is stable. A driving assembly 6 is also provided on the upper side of the spindle seat 1. The driving assembly 6 is connected to the rotating shaft 22 to drive the rotating shaft 22 to rotate back and forth. When the locking assembly 5 unlocks the mounting plate 3, the driving assembly 6 drives the rotating shaft 22 to rotate and drive the mounting plate 3 to flip toward the upper side of the spindle seat 1 to enable the guide sleeve body 4 to avoid the drill bit.

[0021] Reference Figure 1 and Figure 2 The gear 62 is fixedly connected to the main shaft seat 1 and is located on one side of the mounting seat 2. The side of the mounting seat 2 is provided with a through slot 24 which runs through it. The through slot 24 is communicated with the opening 21. The gear 62 is fixedly connected to the rotating shaft 22, and the center of the gear 62 is in the same straight line as the axis of the rotating shaft 22. The gear 62 is installed and avoided in the through slot 24. The bottom surface of the mounting seat 2 and the through slot 24 is concavely provided with a slide 25 which runs through it (not shown in the figure). The width of the slide 25 matches the width of the rack 63. The rack 63 is slidably arranged in the through slot 24 and meshes with the gear 62. The telescopic shaft of the first cylinder 61 is connected to the rack 63 to drive the rack 63 to move back and forth. The reciprocating movement of the rack 63 realizes the driving gear 62 to drive the rotating shaft 22 to rotate back and forth. The rack 63 is guided and limited by the through slot 24 to make the activity stable.

[0022] Reference Figure 1 and Figure 3Furthermore, the locking assembly 5 includes an articulated seat 51, a bent arm 52, a second cylinder 53, and an articulated head 54. The articulated seat 51 is fixed to the front of the spindle seat 1 and is on one side of the mounting plate 3. A movable groove 511 is provided on one side of the articulated seat 51. The side of the articulated seat 51 away from the spindle seat 1 is the abutment surface. The side of the mounting plate 3 close to the spindle seat 1 abuts against the abutment surface of the articulated seat 51. The bent arm 52 is installed in the movable groove 511 and one end thereof is hinged to the articulated seat 51. The other end of the bent arm 52 is bent, and the bent end of the bent arm 52 passes through the movable groove 511. The second cylinder 53 is fixed to the articulated seat 51 away from the bent arm The second cylinder 53 is on one side of the hinge 52 and the telescopic shaft of the second cylinder 53 passes through the hinge seat 51 and enters the movable groove 511. The end of the telescopic shaft of the second cylinder 53 is connected and fixed with the hinge head 54. The hinge head 54 is hinged to the middle part of the bent arm 52. The second cylinder 53 drives the bent arm 52 to swing back and forth in the direction of approaching and away from the mounting plate 3. When the bent arm 52 swings in the direction of approaching the mounting plate 3, the bent end of the bent arm 52 and the abutment surface clamp the mounting plate 3 to fix the mounting plate 3 to achieve locking of the mounting plate 3. When the bent arm 52 swings in the direction of away from the mounting plate 3, the mounting plate 3 is unlocked and flipped over to avoid it.

[0023] Reference Figure 1 When the guide sleeve of the deep hole drill is turned over, the pressing member 73 is extended to the front of the spindle seat 1 and the pressing member 73 is pressed against the guide sleeve of the deep hole drill. The pressing member 73 is fixed to the upper side of the spindle seat 1 by the third cylinder 72, and the pressing member 73 is fixed to the telescopic shaft of the third cylinder 72. The third cylinder 72 drives the pressing member to reciprocate toward the front and back sides of the spindle seat 1. When the mounting plate 3 is turned over to the upper side of the spindle seat 1, the pressing member 73 is extended to the front side of the spindle seat 1 and presses the mounting plate 3 to provide a certain support for the mounting plate 3, thereby reducing the situation in which the mounting plate 3 and the guide seat thereon swing downward due to their own gravity and affect the feed of the drill bit.

[0024] Reference Figure 1Furthermore, a slide rail 31 parallel to the length direction of the spindle seat 1 is provided on the side of the mounting plate 3 away from the spindle seat 1, and a slider 32 is slidably provided on the slide rail 31, and the guide sleeve body 4 is connected and fixed to the slider 32. A slide rail 31 parallel to the length direction of the spindle seat 1 is provided on the side of the mounting plate 3 away from the spindle seat 1, and a slider 32 is slidably provided on the slide rail 31, and the guide sleeve body 4 is connected and fixed to the slider 32. A fourth cylinder 33 is also fixed on the side of the mounting plate 3 away from the spindle seat 1, and the telescopic shaft of the fourth cylinder 33 is fixedly connected to the guide sleeve body 4. The third cylinder 72 drives the guide sleeve body 4 to reciprocate along the length direction of the slide rail 31. When the guide sleeve body 4 supports the drill bit, it is beneficial to make the guide sleeve detach from the drill bit by sliding the guide sleeve body 4 along the length direction of the slide rail 31, which is more convenient and beneficial for the guide sleeve body 4 to adjust the supporting position of the drill bit.

[0025] Reference Figure 1 、 Figure 4 and Figure 5 Furthermore, a guide sleeve flipping mechanism for a deep hole drill also includes a positioning and pressing assembly. The positioning and pressing assembly 8 includes a fifth cylinder 81, a positioning block 82, and a pressing block 83. The spindle seat 1 is provided with a mounting groove 11 on the side of the mounting plate 3 away from the hinge seat 51. The fifth cylinder 81 is installed in the mounting groove 11 and is connected and fixed to the spindle seat 1, and the fifth cylinder 81 is arranged perpendicular to the front of the spindle seat 1. The telescopic axis of the fifth cylinder 81 faces the mounting plate 3. The outer peripheral wall of the mounting plate 3 on the side away from the hinge seat 51 is provided with an arc-shaped groove 35 that penetrates its own thickness. The arc-shaped groove 35 is centered on the axis of the rotating shaft 22. Extension, the width of the arc-shaped groove 35 matches the diameter of the telescopic shaft of the fifth cylinder 81, and the end of the telescopic shaft of the fifth cylinder 81 is fixedly connected to the pressure block 83. The telescopic shaft of the fifth cylinder 81 is inserted into the arc-shaped groove 35 and the pressure block 83 is driven by the fifth cylinder 81 to move toward the direction of the spindle seat 1 so that the pressure block 83 presses the mounting plate 3 away from the side of the spindle seat 1, thereby further locking and fixing the mounting plate 3, making it less likely to deflect. The positioning block 82 is fixed to the front of the spindle seat 1 and is located on one side of the fifth cylinder 81 and abuts against the outer peripheral wall of the mounting plate 3, thereby playing the role of positioning the mounting plate 3 after it is flipped back to its original position.

[0026] The implementation principle of the guide sleeve flipping mechanism of the deep hole drilling machine tool of the present application is as follows: when in use, the drill bit penetrates into the guide sleeve body 4, and the feed mechanism fixed on the spindle seat 1 drives the drill bit to reciprocate along the length direction of the spindle seat 1 to realize drill feed. When the effective stroke of the drill bit needs to reach a maximum value, the fourth cylinder 33 is used to drive the guide sleeve body 4 to separate from the drill bit, and the second cylinder 53 is used to drive the bending arm 52 away from the mounting plate 3 to release the lock of the mounting plate 3 and avoid the mounting plate 3. The fifth cylinder 81 drives the pressure block 83 to move in the direction away from the spindle seat 1 to contact the pressure on the mounting plate 3, and then the first cylinder 61 drives the rack 63 to move and drive the gear 62 and the rotating shaft 22 to rotate. The rotating shaft 22 rotates to drive the mounting plate 3 and the guide sleeve body 4 from one side of the hinged seat 51 to the upper side of the spindle seat 1. When the cam 3 is in the working state, the third cylinder 72 drives the abutment member 73 to press the mounting plate 3 to support the mounting plate 3, so that the guide sleeve body 4 and the mounting plate 3 avoid the drill bit from entering. The rotating shaft 22 rotates in the opposite direction, and the mounting plate 3 flips back downward. The positioning block 82 abuts against the outer wall of the mounting plate 3 to limit the mounting plate 3 to continue flipping, so that the mounting plate 3 is flipped back and the mounting plate 3 is accurately returned, and the telescopic shaft of the fifth cylinder 81 is re-engaged in the arc-shaped groove 35. The fifth cylinder drives the pressure block 83 to move in the direction close to the spindle seat 1, so that the pressure block 83 presses the mounting plate again to press the mounting plate tightly and fix it. Compared with the existing technology, the guide sleeve avoids the drill bit and does not need to perform a screw-twisting operation to disassemble the guide sleeve. The automatic flipping driven by the cylinder has high efficiency and reduces the workload of the staff.

[0027] 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 may 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 appended claims and their equivalents.

Claims

1. A guide sleeve flipping mechanism for a deep hole drilling machine tool, characterized in that: It includes a spindle seat, a mounting seat is provided on the upper side of the spindle seat, a rotating shaft is rotatably provided on the mounting seat, the rotating shaft is parallel to the thickness direction of the spindle seat, the rotating shaft is connected with a mounting plate, the mounting plate hangs down from the front side of the spindle seat, a guide sleeve body for guiding and supporting the drill bit is fixed on the mounting plate, a locking assembly is provided on the front side of the spindle seat for locking and unlocking the mounting plate, and a driving assembly is also provided on the upper side of the spindle seat, and the driving assembly is connected to the rotating shaft to drive the rotating shaft to rotate reciprocatingly.

2. The guide sleeve flipping mechanism of a deep hole drilling machine according to claim 1, characterized in that: The driving assembly includes a first cylinder, a gear, and a rack. The first cylinder is fixedly connected to the main shaft seat, the gear is fixedly connected to the rotating shaft, and the center of the gear is in the same straight line as the axis of the rotating shaft. The rack is connected to the telescopic shaft of the first cylinder, and the rack is engaged with the gear. The first cylinder drives the rack to move back and forth, driving the gear to rotate.

3. The guide sleeve flipping mechanism of a deep hole drilling machine according to claim 1, characterized in that: The locking assembly includes an articulated seat, a bent arm, a second cylinder, and an articulated head. The articulated seat is fixed to the front of the spindle seat and is located on one side of the mounting plate. One end of the bent arm is articulated to the articulated seat. A side of the mounting plate close to the spindle seat abuts against the articulated seat. The second cylinder is fixed to the articulated seat. The articulated head is fixedly connected to the telescopic shaft of the second cylinder. The articulated head is articulated to the middle part of the bent arm. The other end of the bent arm is bent. The second cylinder drives the bent arm to swing back and forth so that the bent end of the bent arm presses against a side of the mounting plate away from the spindle seat or moves the bent arm away from the mounting plate.

4. The guide sleeve turning mechanism of a deep hole drilling machine according to claim 2, characterized in that: It also includes a pressure support assembly, which includes a fixed seat, a third cylinder, and a pressure piece. The fixed seat is fixed to the upper side of the main spindle seat, the third cylinder is fixed on the main spindle seat, the pressure piece is connected to the telescopic shaft of the third cylinder, and the third cylinder drives the pressure piece to move back and forth toward the front and back of the main spindle seat.

5. The guide sleeve turning mechanism of a deep hole drilling machine according to claim 1, characterized in that: A slide rail parallel to the length direction of the spindle seat is provided on the side of the mounting plate away from the spindle seat, a slider is slidably provided on the slide rail, the guide sleeve body is connected and fixed to the slider, and a fourth cylinder is also fixed to the side of the mounting plate away from the spindle seat, the telescopic shaft of the fourth cylinder is fixedly connected to the guide sleeve body, and the fourth cylinder drives the guide sleeve body to reciprocate along the length direction of the slide rail.

6. The guide sleeve turning mechanism of a deep hole drilling machine according to claim 1, characterized in that: The cam is fixed to the front of the spindle seat and is located on one side of the fifth cylinder and is in contact with the outer wall of the mounting plate.

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