Hexagonal socket boring tool holder

Abstract

The utility model belongs to the field of boring, specifically speaking, it is a hexagonal pulls the hole boring cutter handle, including shell, directional seat and main handle, the outside of shell is provided with directional seat, the top of shell is provided with main handle, the bottom of inside of main handle is provided with built -in cutter cylinder, the bottom of built -in cutter cylinder is provided with boring tool, the bottom of shell is provided with the closure, the utility model discloses through six rhombus trajectory ring and deep groove ball bearing cooperation, the built -in cutter cylinder is shaken and is restrained in combination limit component, makes the boring tool of rotation stable to three rhombus trajectory deviation. On the one hand, need not additional setting or changing sword, can complete pulls the hole polygonal hole wall cutting one time, simplifies the procedure, reduces time loss, on the other hand, track stable law can guarantee pulls the hole each side precision is consistent, hole wall is even, avoids traditional boring hole type irregular, the problem of big size deviation, promotes processing quality. Meanwhile, the upper and lower bearing in shell provides stable support, further guarantees the stable swing of tool.

Description

Technical Field

[0001] This utility model belongs to the field of boring, specifically a hexagonal mortise boring tool holder. Background Technology

[0002] With economic development and social progress, the demand for functional tool holders in the machinery manufacturing industry is increasing, and their application in production is becoming more and more common. As a key structure of functional tool holders and various connecting parts, the polygonal design of the rivet hole can significantly improve the connection stability and load-bearing capacity.

[0003] Currently, in the processing of polygonal rivet holes, in various irregular hole processing scenarios (such as square holes and internal hexagonal holes): the existing processing methods are difficult to adapt to the direct processing requirements of CNC machine tools. Most irregular holes cannot be directly formed on CNC machine tools. If milling trajectory is used to process irregular holes such as square holes, not only is the efficiency extremely low, but some complex shapes cannot even be processed.

[0004] Traditional boring machines' core cutting tools can only perform a single rotary motion, lacking the ability to move along non-circular trajectories as required, making them unsuitable for machining non-circular holes such as polygons. During machining, multiple adjustments to equipment parameters (such as tool angle and feed path) or replacement with specialized tools for step-by-step cutting are necessary, extending the machining cycle, increasing the operational threshold, and easily introducing errors due to repeated adjustments. Furthermore, the inability to achieve regular tool oscillation through trajectory constraints results in inconsistent dimensions on each side and rough hole walls in the machined riveting holes, making it difficult to meet high-precision requirements.

[0005] Therefore, this utility model provides a hexagonal pull-hole boring tool holder. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: The hexagonal mortise boring tool holder of this utility model includes a shell, a guide seat and a main handle. The guide seat is provided on the outside of the shell, the main handle is provided on the top of the shell, the inner bottom of the main handle is provided with an internal tool cylinder, the bottom of the internal tool cylinder is provided with a boring tool, the bottom of the shell is provided with a cap, the outer side wall of the main handle is provided with bearing grooves at equal intervals from bottom to top, the outer side wall of the internal tool cylinder is provided with external grooves at equal intervals from bottom to top, the internal grooves are provided with deep groove ball bearings, the inner side wall of the shell is fixed with track rings at equal intervals, and the bottom of the internal tool cylinder is provided with a limit component.

[0008] Preferably, the two adjacent bearing grooves are rotated 120° symmetrically, and the two adjacent deep groove ball bearings are rotated 120° symmetrically.

[0009] Preferably, the number of deep groove ball bearings and bearing grooves are the same and their positions correspond, the size of the bearing grooves matches the size of the deep groove ball bearings, and the deep groove ball bearings are placed in the bearing grooves and protrude from them.

[0010] Preferably, an upper bearing is provided at the top of the inside of the housing, a lower bearing is provided at the bottom of the inside of the housing, and three track rings are fixed at equal intervals in the middle of the inside of the housing.

[0011] Preferably, the three deep groove ball bearings correspond to the inner sidewalls of the three track rings respectively.

[0012] Preferably, the limiting component includes a support plate disposed at the bottom of the built-in blade cylinder, three limiting blocks are fixed at equal intervals on the outside of the support plate, a limiting plate is disposed at the bottom inside the outer shell, a mating groove is opened inside the limiting plate, a limiting groove is opened at equal intervals on the outer periphery of the mating groove, an upper washer is disposed at the top of the limiting plate, and a lower washer is disposed at the bottom of the limiting plate.

[0013] Preferably, the size of the support plate matches the size of the docking groove, and the support plate is placed inside the docking groove.

[0014] Preferably, the thickness of the limiting block is less than or equal to the thickness of the limiting groove, and the limiting block is placed inside the upper and lower washers and can be translated therein.

[0015] Preferably, an outer support ring is fixed to the outside of the main handle, a slot is provided on one side of the outer support ring, a side block is fixed to one side of the directional seat, a movable block is provided on the top of the side block, a threaded pin is provided inside the movable block, the bottom of the threaded pin is threaded into the side block, a spring is provided between the movable block and the side block, and a locking block is fixed to the side of the movable block facing the outer support ring.

[0016] Preferably, the size of the card block matches the size of the card slot, so that the card block can be inserted into the card slot.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1. The hexagonal rivet hole boring tool holder of this utility model, through the cooperation of a trajectory ring and a deep groove ball bearing, constrains the translation of the internal tool cylinder axis. Combined with a limiting component, it constrains the axial movement and axial runout of the internal tool cylinder, ensuring that the rotating boring tool moves stably along the trajectory set by the trajectory ring. On the one hand, it eliminates the need for additional adjustments or tool changes, allowing for one-time cutting of the polygonal hole wall of the rivet hole, simplifying the process and reducing time consumption. On the other hand, the stable and regular trajectory ensures consistent accuracy on all sides of the rivet hole and a smooth hole wall, avoiding the problems of irregular hole shape and large dimensional deviations in traditional boring, thus improving machining quality. Simultaneously, the low relative movement speed between the limiting components provides a longer service life.

[0019] 2. The hexagonal pull-ring boring tool holder of this utility model uses the elastic force of a spring to push a movable block, causing a locking block to engage in the groove of the outer support ring, quickly fixing the position of the main shank and keeping the boring tool stationary. This solves the operational risk caused by accidental tool rotation during tool changes in traditional boring tools, reducing the possibility of hand injuries to workers and preventing damage to surrounding components from rotating tools. During equipment installation, the fixed main shank ensures precise docking between the boring tool and the processing equipment, preventing misalignment due to main shank misalignment and improving installation efficiency and accuracy. When ready for use or relocking, unlocking and locking operations can be achieved simply by rotating the threaded pin. The entire process requires no complex tools, and the operation steps are simple and easy to understand, saving operation time and lowering the operational threshold for workers. Whether novice or experienced, operators can quickly complete locking and unlocking operations, significantly improving the ease of use and safety of the equipment. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 This is an overall structural diagram of the present invention;

[0022] Figure 2 This is an exploded view of the overall structure of this utility model;

[0023] Figure 3 This is a front view of the exploded structure of this utility model;

[0024] Figure 4 This is a partial structural disassembly in this utility model. Figure 1 ;

[0025] Figure 5 This is a partial structural disassembly in this utility model. Figure 2 ;

[0026] Figure 6 This is a partial structural cross-sectional view of this utility model;

[0027] Figure 7 This is a structural exploded view of the limiting component in this utility model;

[0028] Figure 8 This is a partial structural disassembly in this utility model. Figure 3 ;

[0029] Figure 9 This is a partial structure in this utility model. Figure 1 ;

[0030] Figure 10 This is a partial structure in this utility model. Figure 2 ;

[0031] Figure 11 This is a partial structural disassembly in this utility model. Figure 4 .

[0032] In the diagram: 1. Outer shell; 11. Upper bearing; 12. Lower bearing; 13. Track ring; 2. Orientation seat; 21. Side block; 22. Outer support ring; 23. Movable block; 24. Threaded pin; 25. Slot; 26. Spring; 27. Slot; 3. Main shank; 4. Internal tool barrel; 5. External slot; 51. Deep groove ball bearing; 52. Bearing groove; 53. Support plate; 54. Limiting block; 55. Limiting plate; 56. Connecting groove; 57. Limiting groove; 58. Upper washer; 59. Lower washer; 6. Boring tool; 7. Cover. Detailed Implementation

[0033] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0034] like Figures 1 to 11 As shown, a hexagonal mortise boring tool holder according to an embodiment of the present invention includes a housing 1, a guide seat 2, and a main handle 3. The guide seat 2 is provided on the outside of the housing 1, the main handle 3 is provided on the top of the housing 1, an internal tool cylinder 4 is provided at the bottom inside the main handle 3, a boring tool 6 is provided at the bottom of the internal tool cylinder 4, a cover 7 is provided at the bottom of the housing 1, bearing grooves 52 are provided at equal intervals from bottom to top on the outer side wall of the main handle 3, external grooves 5 are provided at equal intervals from bottom to top on the outer side wall of the internal tool cylinder 4, a deep groove ball bearing 51 is provided inside the external groove 5, a track ring 13 is fixed at equal intervals on the inner side wall of the housing 1, and a limit component is provided at the bottom of the internal tool cylinder 4.

[0035] The two adjacent bearing grooves 52 are symmetrical when rotated 120°, and the two adjacent deep groove ball bearings 51 are symmetrical when rotated 120°.

[0036] The number of deep groove ball bearings 51 and bearing grooves 52 are the same and their positions correspond. The size of the bearing grooves 52 matches the size of the deep groove ball bearings 51. The deep groove ball bearings 51 are placed in the bearing grooves 52 and protrude from them.

[0037] An upper bearing 11 is provided at the top of the interior of the outer casing 1, a lower bearing 12 is provided at the bottom of the interior of the outer casing 1, and three track rings 13 are fixed at equal intervals in the middle of the interior of the outer casing 1.

[0038] The three deep groove ball bearings 51 correspond to the inner sidewalls of the three track rings 13 respectively.

[0039] The limiting component includes a support plate 53 located at the bottom of the built-in blade cylinder 4. Three limiting blocks 54 are fixed at equal intervals on the outside of the support plate 53. A limiting plate 55 is provided at the bottom inside the outer shell 1. A mating groove 56 is provided inside the limiting plate 55. A limiting groove 57 is provided at equal intervals on the outer periphery of the mating groove 56. An upper washer 58 is provided on the top of the limiting plate 55. A lower washer 59 is provided on the bottom of the limiting plate 55.

[0040] The dimensions of the support plate 53 match the dimensions of the docking groove 56, and the support plate 53 is placed inside the docking groove 56.

[0041] The thickness of the limiting block 54 is less than or equal to the thickness of the limiting groove 57. The limiting block 54 is placed inside the upper washer 58 and the lower washer 59 and can move within them.

[0042] An outer support ring 22 is fixed to the outside of the main handle 3. A slot 25 is provided on one side of the outer support ring 22. A side block 21 is fixed to one side of the directional seat 2. A movable block 23 is provided on the top of the side block 21. A threaded pin 24 is provided inside the movable block 23. The bottom of the threaded pin 24 is threaded into the side block 21. A spring 26 is provided between the movable block 23 and the side block 21. A locking block 27 is fixed to the side of the movable block 23 facing the outer support ring 22.

[0043] The size of the card block 27 matches the size of the card slot 25, and the card block 27 can be inserted into the card slot 25.

[0044] Specifically,

[0045] When this boring tool is installed on the machining equipment and put into use, its core function is to use the linkage of multiple components to make the boring tool 6 move along a set trajectory to achieve the polygonal machining of the rivet hole. The specific process is as follows:

[0046] The processing equipment is first connected to the main shank 3 of the boring tool, and the main shank 3 is rotated by the power output of the processing equipment. Since the built-in tool cylinder 4 is engaged with the bearing groove 52 of the main shank 3 through the deep groove ball bearing 51, the rotation of the main shank 3 will directly drive the built-in tool cylinder 4 to rotate synchronously, thereby causing the boring tool 6 installed at the bottom of the built-in tool cylinder 4 to rotate accordingly, providing basic rotational power for boring operations;

[0047] During the rotation of the built-in tool cylinder 4, the deep groove ball bearing 51 in the outer groove 5 on its outer side wall will continuously contact the inner side wall of the three track rings 13 fixed in the middle position inside the outer shell 1. The irregular contour of the inner side wall of the track rings 13 will generate a lateral thrust on the deep groove ball bearing 51, forcing the axis of the built-in tool cylinder 4 to move. At the same time, the support plate 53 at the bottom of the built-in tool cylinder 4 will move accordingly, and the upper washer 58 and the lower washer 59 will limit the limiting block 54, constraining the axial movement and axis deflection of the built-in tool cylinder 4, so that the rotating boring tool 6 moves along the trajectory set by the track rings 13, thereby realizing the polygonal boring of the riveting hole;

[0048] The upper bearing 11 at the top and the lower bearing 12 at the bottom inside the housing 1 provide stable rotational support for the main shank 3 and the built-in tool barrel 4 throughout the entire working process, preventing the components from shifting due to high-speed rotation or shaking, and ensuring the accuracy of boring.

[0049] The trajectory loop 13 curve is a complex high-order curve. The working principle of this device is as follows: the trajectory loop 13 controls the axial position of the built-in tool cylinder 4, and the support plate 53 restricts the axial displacement and axial oscillation of the built-in tool cylinder 4. There is no relative rotational motion between the parts in contact with the support plate 53 and the limiting block 54, only relative translational motion. The relative motion speed is significantly reduced, thus resulting in a longer service life and higher reliability.

[0050] Furthermore,

[0051] To ensure the safety and convenience of operators when changing boring tools 6 and installing equipment, the boring tool is designed with a locking and unlocking mechanism for the main shank 3. The specific operating principle is as follows:

[0052] Locking principle (when not in use): When the boring tool is not in use, the position of the main shank 3 needs to be fixed. At this time, the spring 26 between the side block 21 and the movable block 23 on one side of the guide seat 2 will release its elastic force, pushing the movable block 23 upward, so that the movable block 23 moves towards the locking block 27 fixed on the side of the outer support ring 22 and locks into the locking groove 25 on the side of the outer support ring 22. The main shank 3 is fixed due to the engagement of the locking block 27 and the locking groove 25, thereby keeping the boring tool 6 at the bottom of the boring tool stationary. This avoids the boring tool 6 from rotating and affecting the operation when changing it, or the installation accuracy being reduced due to inaccurate positioning of the main shank 3 when installing the boring tool.

[0053] Unlocking principle (when ready for use): When the boring tool needs to be installed on the machining equipment, the lock of the main shank 3 needs to be released. The operator only needs to rotate the threaded pin 24 inside the movable block 23. The threaded pin 24 presses the movable block 23 downward, overcoming the elastic force of the spring 26, so that the locking block 27 moves out of the slot 25, thereby releasing the lock on the main shank 3. At this time, the main shank 3 can rotate normally with the machining equipment.

[0054] Relocking principle (when not in use): If it is necessary to relock the main handle 3, first rotate the main handle 3 to drive the outer support ring 22 to rotate synchronously, so that the slot 25 on one side of the outer support ring 22 rotates to the position directly opposite the locking block 27; then reverse the threaded pin 24, the downward pressure of the threaded pin 24 on the movable block 23 disappears, the spring 26 releases its elastic force again to push the movable block 23 upward, so that the locking block 27 gradually locks into the slot 25, thus completing the relocking of the main handle 3.

[0055] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A hexagonal mortise boring tool holder, comprising a housing (1), a guide seat (2), and a main shank (3), characterized in that: The outer shell (1) is provided with an directional seat (2), the top of the outer shell (1) is provided with a main handle (3), the bottom of the main handle (3) is provided with an internal tool cylinder (4), the bottom of the internal tool cylinder (4) is provided with a boring tool (6), the bottom of the outer shell (1) is provided with a cover (7), the outer side wall of the main handle (3) is provided with bearing grooves (52) at equal intervals from bottom to top, the outer side wall of the internal tool cylinder (4) is provided with external grooves (5) at equal intervals from bottom to top, the internal grooves (5) are provided with deep groove ball bearings (51), the inner side wall of the outer shell (1) is fixed with track rings (13) at equal intervals, and the bottom of the internal tool cylinder (4) is provided with a limit component.

2. The hexagonal draw die holder according to claim 1, wherein: The two adjacent bearing grooves (52) are rotated 120° to be symmetrical, and the two adjacent deep groove ball bearings (51) are rotated 120° to be symmetrical.

3. The boring tool holder for hexagonal draw-socket holes according to claim 1, characterized in that: The deep groove ball bearings (51) and bearing grooves (52) are the same in number and corresponding in position. The size of the bearing grooves (52) matches the size of the deep groove ball bearings (51). The deep groove ball bearings (51) are placed in the bearing grooves (52) and protrude therefrom.

4. A hexagonal mortise boring tool holder according to claim 3, characterized in that: An upper bearing (11) is provided at the top of the interior of the outer shell (1), a lower bearing (12) is provided at the bottom of the interior of the outer shell (1), and three track rings (13) are fixed at equal intervals in the middle of the interior of the outer shell (1).

5. A hexagonal mortise boring tool holder according to claim 4, characterized in that: The three deep groove ball bearings (51) correspond to the inner walls of the three track rings (13), respectively.

6. The hexagonal draw die holder according to claim 1, wherein: The limiting component includes a support plate (53) disposed at the bottom of the built-in blade cylinder (4), three limiting blocks (54) are fixed at equal intervals on the outside of the support plate (53), a limiting plate (55) is disposed at the bottom inside the outer shell (1), a docking groove (56) is provided inside the limiting plate (55), a limiting groove (57) is provided at equal intervals on the outer periphery of the docking groove (56), an upper washer (58) is provided at the top of the limiting plate (55), and a lower washer (59) is provided at the bottom of the limiting plate (55).

7. A hexagonal mortise boring tool holder according to claim 6, characterized in that: The size of the support plate (53) matches the size of the docking groove (56), and the support plate (53) is placed inside the docking groove (56).

8. The hexagonal draw die holder according to claim 6, wherein: The thickness of the limiting block (54) is less than or equal to the thickness of the limiting groove (57), and the limiting block (54) is placed inside the upper washer (58) and the lower washer (59) and can be translated therein.

9. The hexagonal draw die holder according to claim 1, wherein: An outer support ring (22) is fixed to the outside of the main handle (3). A slot (25) is provided on one side of the outer support ring (22). A side block (21) is fixed to one side of the directional seat (2). A movable block (23) is provided on the top of the side block (21). A threaded pin (24) is provided inside the movable block (23). The bottom of the threaded pin (24) is threaded into the side block (21). A spring (26) is provided between the movable block (23) and the side block (21). A locking block (27) is fixed to the side of the movable block (23) facing the outer support ring (22).

10. A hexagonal mortise boring tool holder according to claim 9, characterized in that: The size of the card block (27) matches the size of the card slot (25), and the card block (27) can be inserted into the card slot (25).

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