Axial fine adjustment mechanism for end mill of multi-shaft power box
By using a multi-axis power box end mill axial fine-tuning mechanism, which utilizes motor-driven gear transmission and torque key pins, precise adjustment and tight locking of the end mill are achieved. This solves the problems of inaccurate adjustment and loose locking in existing technologies, and improves machining efficiency and accuracy.
Patent Information
- Application Number
- CN202520375219.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-05
AI Technical Summary
Existing multi-axis power box end mills are not easy to adjust to the precise position in one go when adjusting the tool position, and the collet cannot lock the end mill tightly, which affects the performance.
The end mill adopts a multi-axis power box axial fine adjustment mechanism, which drives the Morse taper shank and end mill to rotate through a motor-driven gear transmission system. Combined with the cooperation of torque key pin and adjusting bolt, the end mill can be precisely adjusted and locked.
It enables precise adjustment and tight locking of the end mill position, simplifies the operation process, reduces manufacturing costs, and improves machining accuracy.
Smart Images

Figure CN223916756U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of multi-axis power box end mill technology, and in particular to an axial fine adjustment mechanism for multi-axis power box end mills. Background Technology
[0002] For milling of steel, sheet metal, and other processed parts, especially for parts requiring multiple milling operations, the milling head assembly connected to the power unit needs to use a combination of multiple milling heads to perform multiple milling operations at once, greatly shortening the processing cycle of steel or sheet metal. Existing multi-axis power box end mills require operators to loosen the collet and pull or push the end mill to adjust its position. However, this method is not easy to adjust the end mill to a precise position in one go, and it cannot guarantee that the collet can tightly lock the end mill, which is detrimental to the use of the end mill. Therefore, we propose an axial fine-tuning mechanism for multi-axis power box end mills. Utility Model Content
[0003] To address the aforementioned problems, this invention provides an axial fine-tuning mechanism for multi-axis power box end mills. This invention solves the problem that existing multi-axis power box end mills require operators to loosen the collet and pull or push the end mill to adjust its position. However, this method is not conducive to adjusting the end mill to a precise position in one go, and it cannot guarantee that the collet can tightly lock the end mill, which is detrimental to the use of the end mill.
[0004] The multi-axis power box end mill axial fine-adjustment mechanism of this utility model includes a housing. A motor is provided at the upper end of one side of the housing. The rotating shaft of the motor passes through the power input shaft of the housing and is fixedly connected. A first gear is provided on the side of the power input shaft away from the motor. Power transmission shafts are provided on both sides of the housing below the power input shaft. A second gear meshes with the first gear on the power transmission shaft. Four power output shaft tubes are arranged in a matrix below the power transmission shafts in the housing. A third gear matching the second gear is provided on the power output shaft tube. A long bolt is inserted into the power output shaft tube. A Morse taper shank cutter sleeve is provided in the middle of the side of the power output shaft tube away from the motor. The long bolt is threaded to the Morse taper shank cutter sleeve. An end mill is provided in the Morse taper shank cutter sleeve. Two symmetrical push blocks are provided at one end of the Morse taper shank cutter sleeve inside the power output shaft tube. A guide groove matching the push blocks is opened on the power output shaft tube. An adjusting bolt is provided at the end of the push blocks on the power output shaft tube.
[0005] In the above scheme, the adjusting bolt and the push block are positioned on opposite sides with an arc surface.
[0006] In the above scheme, a torque key pin is provided between the power output shaft tube and the Morse taper shank sleeve, and a limiting groove matching the torque key pin is provided on both the power output shaft tube and the Morse taper shank sleeve.
[0007] In the above scheme, a gasket is provided between the long bolt and the power output shaft tube.
[0008] In the above scheme, multiple equally spaced mounting holes are provided on both sides of the lower end of the box.
[0009] The advantages and beneficial effects of this utility model are as follows: This utility model provides an axial fine-tuning mechanism for end mills in a multi-axis power box. When the power output shaft rotates, the Morse taper shank sleeve drives the end mill to rotate through the transmission of the torque key pin. Rotating the long bolt disengages it from the Morse taper shank sleeve. Rotating the adjusting bolt clockwise allows the inner end of the adjusting bolt to contact the push block. At this time, the Morse taper shank sleeve and the end mill can move towards the power output shaft. When the end mill moves to the set position, rotating the long bolt reconnects it with the Morse taper shank sleeve, thus completing the adjustment of the end mill's inward retraction. Rotating the adjusting bolt in the opposite direction pushes the push block, thus completing the adjustment of the end mill's outward extension. This fine-tuning mechanism has a simple structure, low manufacturing cost, and is easy to promote. The end mill position is easy to adjust, effectively solving the problem of difficult adjustment of multi-axis power boxes and ensuring the adjustment accuracy of the end mill. Attached Figure Description
[0010] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0011] Figure 1 This is a schematic diagram of the structure of this utility model;
[0012] Figure 2 This is a first sectional view of the present invention;
[0013] Figure 3 This is a second sectional view of the present invention;
[0014] Figure 4 This is a schematic diagram of part A of the present invention.
[0015] In the diagram: 1. Housing; 2. Motor; 3. Power input shaft; 4. First gear.
[0016] 5. Power transmission shaft; 6. Second gear; 7. Power output shaft tube; 8. Third gear
[0017] 9. Long bolt; 10. Morse taper shank holder; 11. End mill; 12. Push block.
[0018] 13. Guide groove; 14. Adjusting bolt; 15. Torque key pin; 16. Shim.
[0019] 17. Mounting holes. Detailed Implementation
[0020] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.
[0021] like Figure 1-4As shown, this utility model is an axial fine-tuning mechanism for a multi-axis power box end mill, including a housing 1. A motor 2 is mounted on the upper side of one side of the housing 1. The rotating shaft of the motor 2 is fixedly connected to the power input shaft 3 of the housing 1. A first gear 4 is mounted on the side of the power input shaft 3 away from the motor 2. Power transmission shafts 5 are located on both sides of the housing 1 below the power input shaft 3. A second gear 6 meshes with the first gear 4 on each power transmission shaft 5. Four power output shaft tubes 7 are arranged in a matrix below the power transmission shafts 5 inside the housing 1. A third gear 8, matching the second gear 6, is mounted on each power output shaft tube 7. Both ends of the power input shaft 3, power transmission shafts 5, and power output shaft tubes 7 are movably connected to the housing 1 via bearings. When the motor 2 is working, the motor 2 drives the power input shaft 3 to rotate, which in turn drives the first gear 4 to rotate. The first gear 4 then drives the second gear 6 to rotate. Through the transmission of the second gear 6, the third gear 8 can drive the power output shaft tubes 7 to rotate. A long bolt 9 is inserted into the power output shaft tube 7, and the long bolt 9 is connected to the power output shaft tube. 7. Threaded connection: A Morse taper shank sleeve 10 is provided in the middle of the side of the power output shaft tube 7 away from the motor 2. The long bolt 9 is threadedly connected to the Morse taper shank sleeve 10. An end mill 11 is provided inside the Morse taper shank sleeve 10. Two symmetrical push blocks 12 are provided at one end of the Morse taper shank sleeve 10 inside the power output shaft tube 7. A guide groove 13 matching the push blocks 12 is provided on the power output shaft tube 7. An adjusting bolt 14 is provided at the end of the push blocks 12 of the power output shaft tube 7. When adjusting the position of the end mill 11, the long bolt 9 is rotated. The long bolt 9 is disengaged from the Morse shank sleeve 10. The adjusting bolt 14 is rotated clockwise, and the inner end of the adjusting bolt 14 can contact the push block 12. At this time, the Morse shank sleeve 10 and the end mill 11 can move towards the power output shaft tube 7. When the end mill 11 moves to the set position, the long bolt 9 is rotated so that the long bolt 9 and the Morse shank sleeve 10 are reconnected, thus completing the adjustment of the inward retraction of the end mill 11. When the adjusting bolt 14 is rotated in the opposite direction, the adjusting bolt 14 pushes the push block 12, thus completing the adjustment of the outward extension of the end mill 11.
[0022] The adjusting bolt 14 and the push block 12 are respectively designed with an arc surface on one side close to each other.
[0023] A torque key pin 15 is provided between the power output shaft tube 7 and the Morse taper shank sleeve 10. Both the power output shaft tube 7 and the Morse taper shank sleeve 10 are provided with limiting grooves that match the torque key pin 15. The torque key pin 15 is engaged between the power output shaft tube 7 and the Morse taper shank sleeve 10, so that when the power output shaft tube 7 rotates, the Morse taper shank sleeve 10 can drive the end mill 11 to rotate through the transmission of the torque key pin 15.
[0024] A gasket 16 is provided between the long bolt 9 and the power output shaft tube 7.
[0025] The lower end of the housing 1 is provided with multiple equally spaced mounting holes 17 on both sides, through which the fine-tuning mechanism can be fixedly installed.
[0026] Specifically, in this utility model, when the motor 2 is working, the motor 2 drives the power input shaft 3 to rotate, the power input shaft 3 drives the first gear 4 to rotate, the first gear 4 drives the second gear 6 to rotate, and through the transmission of the second gear 6, the third gear 8 can drive the power output shaft tube 7 to rotate. When the power output shaft tube 7 rotates, through the transmission of the torque key pin 15, the Morse taper shank sleeve 10 can drive the end mill 11 to rotate. Rotating the long bolt 9 disengages the long bolt 9 from the Morse taper shank sleeve 10. Rotating the adjusting bolt 14 clockwise allows the inner end of the adjusting bolt 14 to contact the push block 12. At this time, the Morse taper shank sleeve 10 and the end mill 11 can move towards the power output shaft tube 7. When the end mill 11 moves to the set position, rotating the long bolt 9 reconnects the long bolt 9 with the Morse taper shank sleeve 10, thus completing the adjustment of the inward retraction of the end mill 11. When the adjusting bolt 14 is rotated in the opposite direction, the adjusting bolt 14 pushes the push block 12, thus completing the adjustment of the outward extension of the end mill 11.
[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A multi-axis power box end mill axial fine adjustment mechanism, comprising a box body (1), characterized in that, The box (1) one side upper end is equipped with motor (2), the motor (2) rotating shaft penetrates the power input shaft (3) fixed connection of box (1), the power input shaft (3) is equipped with first gear (4) away from the motor (2) one side, the box (1) inside is located below power input shaft (3) both sides are equipped with power transmission shaft (5), the power transmission shaft (5) is equipped with the second gear (6) that meshes with first gear (4), the box (1) is located below power transmission shaft (5) and is equipped with four matrix arrangement power output shaft pipe (7), the power output shaft pipe (7) is equipped with the third gear (8) that matches with second gear (6), the power output shaft pipe (7) is inserted with long bolt (9), the power output shaft pipe (7) is equipped with morse handle sword sleeve (10) away from the motor (2) one side middle part, the long bolt (9) is connected with morse handle sword sleeve (10) thread, the morse handle sword sleeve (10) is equipped with vertical milling cutter (11), the morse handle sword sleeve (10) is located in the power output shaft pipe (7) one end and is equipped with two symmetric push block (12), the power output shaft pipe (7) is opened with the guide slot (13) that matches with push block (12), the power output shaft pipe (7) is located in push block (12) end and is equipped with adjusting bolt (14).
2. The multi-spindle power block end mill axial fine adjustment mechanism according to claim 1, wherein, The adjusting bolt (14) and push block (12) are arranged as arc surfaces on the side close to each other.
3. The multi-spindle power block end mill axial fine adjustment mechanism of claim 1, wherein, The power output shaft pipe (7) and morse handle sword sleeve (10) are provided with torque key pins (15) therebetween, and the power output shaft pipe (7) and morse handle sword sleeve (10) are both provided with limiting grooves matched with the torque key pins (15).
4. The multi-spindle power block end mill axial fine adjustment mechanism of claim 1, wherein, The long bolt (9) and the power output shaft pipe (7) are provided with a gasket (16) therebetween.
5. The multi-spindle power block end mill axial fine adjustment mechanism of claim 1, wherein, The box (1) is provided with a plurality of equidistantly arranged mounting holes (17) on both sides of the lower end.