Hsk power tool holder

Abstract

The utility model relates to mechanical processing equipment technical field, concretely is HSK power tool holder. The utility model discloses, including the casing, the front end cover and the back gland, the front end of casing installs the dust cover, the inner wall rotation of casing is connected with the axle core, the front end cover is fixed through the bolt in the back end of casing, the back gland is fixed through the bolt in the back end of casing, one side of front end cover installs the front bearing, the back bearing is equipped in the casing, the back bearing's outside is equipped with the back spacer ring, one end of back gland abuts the surface of back bearing, the axial both sides of front bearing and back bearing are installed with outer spacer ring and inner spacer ring respectively, the inner wall of casing back end is installed with the check valve. Solveed the existing turning and milling composite power tool holder spindle to rely on import, there is purchase cost high, the problem such as inconvenient maintenance in later period, the back end is easily damaged and needs to frequently replace spare parts, and the spare parts are mostly custom products, and the supply cycle is long, and the problem of seriously influence production efficiency and equipment normal operation.

Description

Technical Field

[0001] This utility model relates to the field of machining equipment technology, and in particular to the HSK power tool holder. Background Technology

[0002] HSK powered tool holders are tool holders mounted on a powered tool turret, driven by a servo motor, and using an HSK interface. They are mainly used in milling and turning machines, and are also suitable for machining centers with powered tool turrets. They can complete a variety of complex part machining operations on a single machine, such as turning, drilling, tapping, end face grooving, side grooving, side milling, angle drilling, and curve milling.

[0003] Regarding the above-mentioned and existing related technologies, the inventor believes that the following defects often exist: existing milling and turning composite power tool holder spindles mostly rely on imported equipment, which not only has high procurement costs, but also causes many inconveniences in subsequent maintenance. At the same time, the back end may frequently fail and require frequent replacement of spare parts. In addition, most of these spare parts are customized products with long supply cycles, which seriously affect production efficiency and normal equipment operation. Therefore, the HSK power tool holder is proposed to address the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing milling and turning power tool holders, which rely on imported spindles, resulting in high procurement costs, inconvenient maintenance, and frequent replacement of spare parts due to easy damage to the rear end. Moreover, these spare parts are mostly customized products with long supply cycles, which seriously affect production efficiency and normal equipment operation. The proposed invention is the HSK power tool holder.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an HSK power tool holder, comprising a housing, a front cover, and a rear pressure cover. A dust cover is installed at the front end of the housing, and a shaft is rotatably connected to the inner wall of the housing. The front cover is fixed to the rear end of the housing by bolts, and the rear pressure cover is fixed to the rear end of the housing by bolts. A front bearing is installed on one side of the front cover, and a rear bearing is provided inside the housing. The rear bearing has a rear spacer ring on its outer side, and one end of the rear pressure cap abuts against the surface of the rear bearing. An outer spacer and an inner spacer are respectively installed on both axial sides of the bearing and the rear bearing, and a one-way valve is installed on the inner wall of the rear end of the housing.

[0006] The effects achieved by the above components are as follows: Redesigning using domestically produced components reduces production costs and facilitates maintenance; appropriate bearing selection improves the rigidity and stability of the spindle machining process. The dust cover at the front of the housing effectively blocks dust, chips, and other impurities, protecting the spindle, bearings, and other internal precision components, extending the tool holder's service life. The spindle is rotatably connected to the inner wall of the housing, and with the front bearing, rear bearing, and spacer, ensures stable and high-precision rotation of the spindle, achieving precise power transmission. The front cover and rear pressure cover are fixed with bolts, facilitating installation and disassembly while providing reliable axial positioning for the bearings. The rear pressure cover abuts against the rear bearing surface, further enhancing the rear bearing's stability. The one-way valve installed on the inner wall of the rear end of the housing precisely controls the unidirectional flow of fluid, ensuring the stable operation of the tool holder's internal lubrication or power transmission system, comprehensively improving the overall performance and reliability of the tool holder.

[0007] Preferably, a circular block is slidably connected to the inner wall of the shaft core, and a soft pad is fixedly connected to the inner wall of the circular block. The soft pad is made of silicone rubber.

[0008] The effects achieved by the above components are as follows: the silicone rubber pad, with its good elasticity, wear resistance and cushioning performance, can effectively reduce friction and collision between the shaft and internal components, reduce operating noise, extend the service life of the shaft and related components, and improve the stability and reliability of equipment operation.

[0009] Preferably, one end of the annular block is fixedly connected to two locking blocks, the upper surface of the locking blocks is provided with an installation groove, the front end of the shaft is fixedly connected to two U-shaped blocks, the inner wall of the U-shaped blocks is provided with a sliding groove, a threaded rod is threadedly inserted into the U-shaped blocks, the threaded rod passes through the sliding groove, one end of the threaded rod is rotatably connected to an installation block, one end of the threaded rod is fixedly connected to a round shaft, the installation block is slidably connected to the inner wall of the sliding groove, and the size of the installation block is adapted to the size of the installation groove.

[0010] The aforementioned components achieve the following effect: through the cooperation of the locking block, mounting groove, U-shaped block, sliding groove, threaded rod, and mounting block, the soft pad on the ring block can be easily removed and installed. When replacing the soft pad, turning the round shaft drives the threaded rod to rotate, causing the mounting block at one end of the threaded rod to disengage from the mounting groove, allowing the ring block to be pulled out; after replacement, the reverse operation is performed to reset, greatly improving the efficiency of soft pad replacement and reducing maintenance difficulty.

[0011] Preferably, the circular arc surface of the circular shaft has a plurality of strip grooves, and the plurality of strip grooves are arranged in an array of the circular shaft.

[0012] The effect achieved by the above components is that the groove can effectively increase the friction of the round shaft, making it less likely for the operator to slip during rotation.

[0013] Preferably, square grooves are provided on both sides of the inner wall of the slide, and a sliding plate is slidably connected to the inner wall of the two square grooves. The sliding plate is fixedly connected to the surface of the mounting block.

[0014] The effect achieved by the above components is as follows: square grooves are provided on both sides of the inner wall of the slide and slide in cooperation with the slide plate. The slide plate is fixedly connected to the mounting block, which provides guidance for the sliding of the mounting block in the slide and effectively prevents the mounting block from shifting, shaking or rotating.

[0015] Preferably, one end of the ring block is fixedly connected to two arc-shaped blocks, the front end of the shaft core is provided with two circular grooves, a positioning rod is fixedly connected to the surface of the arc-shaped blocks, the surface of the arc-shaped blocks is provided with anti-slip texture, and the positioning rod is slidably connected to the inner wall of the circular groove.

[0016] The effect achieved by the above components is that during the installation of the ring block, the positioning rod can be quickly and accurately inserted along the inner wall of the circular groove to achieve the initial positioning of the ring block and the shaft core, effectively avoiding the offset or misalignment of the ring block during the installation process.

[0017] In summary, the beneficial effects of this utility model are as follows: In this invention, production costs are reduced and maintenance is facilitated by redesigning with domestically produced components; reasonable bearing selection enhances the rigidity and stability of the spindle machining process. The dust cover at the front of the housing effectively blocks dust, chips, and other impurities, protecting the spindle core, bearings, and other internal precision components, extending the tool holder's service life. The spindle core is rotatably connected to the inner wall of the housing, and with the front bearing, rear bearing, and spacer, it ensures stable and high-precision rotation of the spindle core, achieving precise power transmission. The front cover and rear pressure cover are fixed with bolts, facilitating installation and disassembly and providing reliable axial positioning for the bearings. The rear pressure cover abuts against the surface of the rear bearing, further enhancing the stability of the rear bearing. The one-way valve installed on the inner wall of the rear end of the housing precisely controls the unidirectional flow of fluid, ensuring the stable operation of the tool holder's internal lubrication or power transmission system, comprehensively improving the overall performance and reliability of the tool holder. Attached Figure Description

[0018] Figure 1 is a three-dimensional structural schematic diagram of this utility model; Figure 2 is a rear view of Figure 1 in this utility model; Figure 3 is a front view of Figure 1 in this utility model; Figure 4 is a cross-sectional view of Figure 3 in this utility model; Figure 5 is a schematic diagram of the structure of the ring block in this utility model; Figure 6 is an enlarged view of point A in Figure 5 of this utility model; Figure 7 is a schematic diagram of the U-shaped block in this utility model.

[0019] Legend: 1. Dust cover; 2. Shaft core; 3. Front end cover; 4. Front bearing; 5. Housing; 6. 7. Outer spacer; 8. Inner spacer; 9. Rear bearing; 10. Rear spacer; 11. Rear gland; 12. Check valve; 13. Circular ring block; 14. Soft pad; 15. Clamping block; 16. Mounting groove; 17. U-shaped block; 18. Slide groove; 19. Threaded rod; 20. Round shaft; 21. Mounting block; 22. Square groove; 23. Slide plate; 24. Strip groove; 25. Arc block; 26. Anti-slip texture; 27. Circular groove; 28. Positioning rod. Detailed Implementation

[0020] Reference Figures 1-7 As shown, this utility model provides a technical solution: an HSK power tool holder, including a housing 5, a front cover 3, and a rear pressure cover 10. A dust cover 1 is installed at the front end of the housing 5. A shaft core 2 is rotatably connected to the inner wall of the housing 5. The front cover 3 is fixed to the rear end of the housing 5 by bolts, and the rear pressure cover 10 is fixed to the rear end of the housing 5 by bolts. A front bearing 4 is installed on one side of the front cover 3. A rear bearing 8 is provided inside the housing 5. A rear spacer 9 is provided on the outer side of the rear bearing 8. One end of the rear pressure cover 10 abuts against the surface of the rear bearing 8. Outer spacers 6 and inner spacers 7 are respectively installed on the axial sides of the front bearing 4 and the rear bearing 8. A one-way valve 11 is installed on the inner wall of the rear end of the housing 5. By redesigning using domestically produced components, production costs are reduced and maintenance is facilitated. Through reasonable bearing selection, the rigidity and stability of the spindle machining are improved. The dust cover 1 at the front end of the housing 5 can effectively block dust, chips, and other impurities. Protects the internal precision components such as the shaft core 2 and bearings, extending the service life of the tool holder; the shaft core 2 is rotatably connected to the inner wall of the housing 5, and together with the front bearing 4, rear bearing 8 and spacer ring, ensures stable and high-precision rotation of the shaft core 2, realizing precise power transmission; the front cover 3 and the rear pressure cover 10 are fixed by bolts, which facilitates installation and disassembly, and provides reliable axial positioning for the bearing; the rear pressure cover 10 abuts against the surface of the rear bearing 8, further enhancing the stability of the rear bearing 8; The one-way valve 11, installed on the inner wall of the rear end of the housing 5, can precisely control the unidirectional flow of fluid, ensuring the stable operation of the internal lubrication or power transmission system of the tool holder, and comprehensively improving the overall performance and reliability of the tool holder. A circular ring block 12 is slidably connected to the inner wall of the shaft core 2, and a soft pad 13 is fixedly connected to the inner wall of the circular ring block 12. The soft pad 13 is made of silicone rubber. Utilizing its good elasticity, wear resistance, and cushioning performance, the silicone rubber soft pad 13 can effectively reduce friction and collision between the shaft core 2 and internal components, reduce operating noise, extend the service life of the shaft core 2 and related components, and improve the stability of equipment operation. For reliability, two locking blocks 14 are fixedly connected to one end of the ring block 12. The upper surface of the locking block 14 is provided with an installation groove 15. Two U-shaped blocks 16 are fixedly connected to the front end of the shaft core 2. The inner wall of the U-shaped block 16 is provided with a sliding groove 17. A threaded rod 18 is inserted into the U-shaped block 16 and passes through the sliding groove 17. One end of the threaded rod 18 is rotatably connected to an installation block 20. One end of the threaded rod 18 is fixedly connected to a round shaft 19. The installation block 20 is slidably connected to the inner wall of the sliding groove 17. The size of the installation block 20 is adapted to the size of the installation groove 15. Through the cooperation of the locking blocks 14, the installation groove 15, the U-shaped blocks, the sliding groove 17, the threaded rod 18, and the installation block 20, the soft pad 13 on the ring block 12 can be easily installed and removed. When replacing the pad 13, turning the round shaft 19 rotates the threaded rod 18, causing the mounting block 20 at one end of the threaded rod 18 to disengage from the mounting groove 15, allowing the ring block 12 to be pulled out. After replacement, the reverse operation is performed to reset, significantly improving the efficiency of replacing the pad 13 and reducing maintenance difficulty. The round shaft 19 has several strip grooves 23 on its arc surface, arranged in an array. The strip grooves 23 effectively increase the friction of the round shaft 19, making it less prone to slippage during operation. Square grooves 21 are provided on both sides of the inner wall of the slide groove 17. Slide plates 22 are slidably connected to the inner walls of the two square grooves 21. The slide plates 22 are fixedly connected to the surface of the mounting block 20. The groove 21 slides and engages with the slide plate 22, which is fixedly connected to the mounting block 20. This provides guidance for the sliding of the mounting block 20 within the groove 17, effectively preventing the mounting block 20 from shifting, shaking, or rotating. Two arc-shaped blocks 24 are fixedly connected to one end of the ring block 12. Two circular grooves 26 are opened at the front end of the shaft core 2. A positioning rod 27 is fixedly connected to the surface of the arc block 24. The surface of the arc block 24 is provided with anti-slip texture 25. The positioning rod 27 is slidably connected to the inner wall of the circular groove 26. When the ring block 12 is installed, the positioning rod 27 can be quickly and accurately inserted along the inner wall of the circular groove 26 to achieve the initial positioning of the ring block 12 and the shaft core 2, effectively preventing the ring block 12 from shifting or misaligning during installation.

[0021] The working principle involves precise fixing of the tool holder to the machine tool holder via the mounting holes of the flange on the housing 5 and the toothed grooves of the rear pressure cover 10, ensuring the stability of the tool holder during machining. The rotational torque generated by the machine tool tool holder motor is transmitted to the spindle through the transmission structure, driving the spindle core 2 to rotate stably, which in turn drives the tool mounted on the spindle core 2 to perform cutting. During operation, coolant enters the tool holder through the one-way valve 11. The one-way valve 11 precisely controls the unidirectional flow of coolant, preventing backflow and ensuring the stable operation of the coolant transmission system. After entering, the coolant is transmitted to the tool holder and tool along the internal channel of the spindle core 2, cooling the tool, flushing chips, and reducing machining temperature, thereby improving machining accuracy and tool life. The tool on the spindle core 2 is clamped and fixed to the tool holder by manual operation, connecting the tool to the spindle core 2, thus achieving high-precision machining of the workpiece. A silicone rubber pad 13 is fixed on the annular block 12 that slides on the inner wall of the shaft core 2. The pad 13's good elasticity, wear resistance, and cushioning properties reduce friction and collision between the shaft core 2 and internal components, lowering operating noise and extending equipment lifespan. When the pad 13 needs to be replaced, rotating the round shaft 19 drives the threaded rod 18 to rotate. Because the threaded rod 18 is threadedly connected to the U-shaped block, and the mounting block 20 slides within the groove 17 (the square groove 21 and the sliding plate 22 cooperate to guide the mounting block 20, preventing it from shifting), the rotation of the threaded rod 18 causes the mounting block 20 to disengage from the mounting groove 15 on the locking block 14, allowing the annular block 12 to be removed for replacement. During installation, first insert the positioning rod 27 of the arc-shaped block 24 on the annular block 12 into the circular groove 26 of the shaft core 2 for initial positioning, then rotate the round shaft 19 in the opposite direction to embed the mounting block 20 into the mounting groove 15, achieving stable installation of the annular block 12 and completing quick maintenance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. An HSK power tool holder, comprising a housing (5), a front end cover (3), and a rear end cover (10), characterized in that: A dust cover (1) is installed at the front end of the housing (5). A shaft core (2) is rotatably connected to the inner wall of the housing (5). The front cover (3) is fixed to the rear end of the housing (5) by bolts. The rear pressure cover (10) is fixed to the rear end of the housing (5) by bolts. A front bearing (4) is installed on one side of the front cover (3). A rear bearing (8) is provided inside the housing (5). A rear spacer (9) is provided on the outer side of the rear bearing (8). One end of the rear pressure cover (10) abuts against the surface of the rear bearing (8). An outer spacer (6) and an inner spacer (7) are installed on the axial sides of the front bearing (4) and the rear bearing (8), respectively. A one-way valve (11) is installed on the inner wall of the rear end of the housing (5).

2. The HSK power tool holder according to claim 1, characterized in that: The inner wall of the shaft core (2) is slidably connected to a ring block (12), and the inner wall of the ring block (12) is fixedly connected to a soft pad (13), which is made of silicone rubber.

3. The HSK power tool holder according to claim 2, characterized in that: Two locking blocks (14) are fixedly connected to one end of the ring block (12). The upper surface of the locking block (14) is provided with an installation groove (15). Two U-shaped blocks (16) are fixedly connected to the front end of the shaft core (2). The inner wall of the U-shaped block (16) is provided with a sliding groove (17). A threaded rod (18) is threaded into the U-shaped block (16). The threaded rod (18) passes through the sliding groove (17). One end of the threaded rod (18) is rotatably connected to an installation block (20). One end of the threaded rod (18) is fixedly connected to a round shaft (19). The installation block (20) is slidably connected to the inner wall of the sliding groove (17). The size of the installation block (20) is adapted to the size of the installation groove (15).

4. The HSK power tool holder according to claim 3, characterized in that: The circular shaft (19) has several strip grooves (23) on its arc surface, and the strip grooves (23) are arranged in an array of the circular shaft (19).

5. The HSK power tool holder according to claim 3, characterized in that: Square grooves (21) are provided on both sides of the inner wall of the slide (17). Slide plates (22) are slidably connected to the inner walls of the two square grooves (21). The slide plates (22) are fixedly connected to the surface of the mounting block (20).

6. The HSK power tool holder according to claim 2, characterized in that: Two arc blocks (24) are fixedly connected to one end of the ring block (12). Two circular grooves (26) are opened at the front end of the shaft core (2). A positioning rod (27) is fixedly connected to the surface of the arc block (24). Anti-slip texture (25) is provided on the surface of the arc block (24). The positioning rod (27) is slidably connected to the inner wall of the circular groove (26).

Images