A power knife device

Abstract

This utility model provides a power tool device, relating to the field of machine tool technology. The utility model includes multiple sets of power tool holders, which are interconnected. Each power tool holder contains a rotatable tool shaft. A force transmission component is disposed between adjacent tool shafts to achieve power transmission between them. The tool shaft has a connecting part for locking different types of tools. A linkage component transmits the power generated by the original drive spindle of the tool bar sub-spindle to the tool shaft of one of the power tool holders. Compared with the prior art, this utility model can achieve integrated processing of multiple operations such as turning, drilling, and milling when parts require multiple composite machining processes such as drilling and milling, significantly expanding the processing range of the tool bar machine tool.

Description

Technical Field

[0001] This utility model relates to the field of machine tool equipment technology, and in particular to a power tool device. Background Technology

[0002] With the continuous advancement of manufacturing technology, modern industrial products place higher demands on the structural complexity and functional integration of parts, often requiring multiple machining processes to be completed within the same operation. A gang tool machine is a typical CNC turning device, typically employing multiple tools fixedly arranged along a tool holder, achieving continuous machining of different parts through workpiece rotation. Its compact structure, fast tool change speed, and suitability for high-volume, high-efficiency machining of small, precision parts have led to its widespread application in automotive parts, electronic components, and instrument manufacturing.

[0003] However, at present, gang cutter machines are mainly used for turning. When faced with parts that require multiple processing methods such as drilling and milling, they are often unable to fully meet higher-level processing needs due to their own structure and power transmission characteristics. Utility Model Content

[0004] The purpose of this application is to provide a power knife device to solve the aforementioned technical problems existing in the prior art.

[0005] This application provides a power knife device, which adopts the following technical solution:

[0006] A power knife device, comprising:

[0007] A powered tool holder, wherein multiple sets of powered tool holders are provided, and the multiple sets of powered tool holders are spliced ​​together, and each powered tool holder has a rotatable tool shaft inside;

[0008] A force transmission component is provided between adjacent cutter shafts to realize the power transmission between the cutter shafts. The cutter shaft is provided with a connecting part for locking different types of cutters.

[0009] A linkage component is used to transmit the power generated by the original drive bar sub-spindle to the cutter shaft of one of the power tool holders.

[0010] Preferably, the power knife device includes a base, a guide rail is provided on the base, the power knife holder is slidably engaged with the guide rail, and a fixing member for fixing the base is provided on the guide rail.

[0011] Preferably, the fixing member includes a first retaining edge, a second retaining edge, and an adjusting screw. The first retaining edge is fixedly disposed at the bottom of the power tool holder, and the second retaining edge is movably disposed on the other side of the bottom of the power tool holder. The adjusting screw slides through the second retaining edge and is threadedly connected to the power tool holder, so that the first retaining edge and the second retaining edge can be clamped on both sides of the power tool holder in the width direction.

[0012] Preferably, the fixing member further includes a hook, and the top of the guide rail is provided with a hook groove along the length direction. The hook is hooked onto the hook groove, and the hook part of the hook faces the side of the first locking edge.

[0013] Preferably, the bottom of the power tool holder is provided with a receiving groove, a spring piece is fixedly disposed in the receiving groove, the bottom of the spring piece is provided with multiple slots, and a retaining strip is formed between adjacent slots. The top of the guide rail is provided with multiple limiting grooves along the length direction, and the retaining strip is used to engage with the limiting groove.

[0014] Preferably, a baffle is slidably provided on the side of the receiving groove near the guide rail, and the baffle is used to prevent the retaining strip of the spring from protruding outside the receiving groove when it elastically deforms.

[0015] Preferably, a transmission box is provided on the base, the length of the transmission box is longer than the length of the power tool holder, a transmission shaft is rotatably arranged inside the transmission box, a first gear is provided on the transmission shaft, the force transmission component includes a second gear, the second gears adjacent to the tool shaft are meshed with each other, the first gear and the second gear are meshed with each other, and the power tool holder is arranged through the two sides of the second gear.

[0016] Preferably, the linkage includes a pair of synchronous pulleys and a synchronous belt. The pair of synchronous pulleys are coaxially fixed on the main spindle of the tool bar and the drive shaft, respectively, and the synchronous belt is wound around the pair of synchronous pulleys.

[0017] Preferably, a positioning strip is fixedly provided at one end of the guide rail, and a positioning groove is provided on the transmission box at a position corresponding to the positioning strip.

[0018] Preferably, the base is provided with a cover, and the cover has a front port for the power tool holder to extend out. The length of the front port is longer than the length of the multiple sets of power tool holders spliced ​​together. A folding elastic plate is fixedly provided on one side inside the front port, and a limit strip is fixedly provided on the side of the folding elastic plate away from its fixed end. The two ends of the limit strip in the length direction are slidably engaged with the front port.

[0019] This utility model has the following advantages and beneficial effects:

[0020] (1) By setting up multiple sets of power tool holders that can be spliced ​​together, the device has good expandability and flexible configuration in terms of structure; each power tool holder is equipped with a tool shaft, and the tool shaft is equipped with a connecting part for locking different types of tools, so that the tools can be quickly changed according to the actual processing requirements, realizing the composite integration of multiple processing steps such as turning, drilling, and milling, and significantly expanding the processing range of the gantry machine tool.

[0021] (2) By setting up a force transmission component between adjacent tool shafts, the effective power transmission between tool shafts is realized. With the help of the linkage component, the power of the original tool bar sub-spindle is reliably transmitted to the tool shaft of one of the power tool holders, thereby driving the entire row of power tool holders to work together. This enables the tool bar machine tool to have the ability to drive multiple tools to operate efficiently, effectively improving the limitation of the existing tool bar machine tool that can only realize single turning operations due to power transmission or space constraints. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram showing the structure of the power tool holder and the sub-spindle box mounted on the base.

[0024] Figure 2 yes Figure 1 Enlarged view of part A in the middle.

[0025] Figure 3 This is a schematic diagram designed to show the overall structure of the power knife device.

[0026] Figure 4 yes Figure 3 Enlarged view of section B.

[0027] Figure 5 This is a structural diagram intended to show the fastener.

[0028] Figure 6 It is a schematic diagram intended to show the internal structure of the power tool holder and transmission box.

[0029] Figure 7 This is a structural diagram intended to show the positioning strip and positioning groove.

[0030] The diagram is marked as follows:

[0031] 100. Power tool holder; 110. Tool shaft; 111. Bearing; 112. Connecting part; 113. Receiving groove; 1131. Baffle; 114. Cover; 115. Positioning groove; 200. Force transmission component; 210. Second gear; 300. Linkage component; 310. Synchronous pulley; 320. Synchronous belt; 400. Distributor spindle; 410. Sub-spindle box; 411. Drive motor; 450. Base; 500. Base; 510. Guide rail ; 511, Hook groove; 512, Limiting groove; 513, Positioning strip; 600, Fixing component; 610, First retaining edge; 620, Second retaining edge; 630, Adjusting screw; 640, Hook; 641, Hook part; 700, Spring piece; 710, Retaining groove; 711, Retaining strip; 800, Transmission box; 810, Transmission shaft; 811, First gear; 900, Cover; 910, Front port; 911, Folding elastic plate; 912, Limiting strip. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0033] The following is combined with Figures 1-7 The present application provides a detailed description of a power knife device through specific embodiments and application scenarios.

[0034] A powered cutting tool device includes multiple sets of powered tool holders 100, which are interconnected. The specific number of sets can be rationally installed and disassembled according to actual processing needs, thereby facilitating flexible adjustment of the device length and tool arrangement based on workpiece size and processing technology, improving adaptability and expandability. Each powered tool holder 100 has a rotatably mounted cutting shaft 110, which is connected to the powered tool holder 100 via bearings 111 to ensure the smooth rotation and service life of the cutting shaft 110, reducing wear caused by prolonged high-speed operation, and improving the stability and reliability of the device.

[0035] It should be noted that the multiple sets of power tool holders 100 can be installed in a horizontal arrangement, or arranged vertically or at an angle, depending on the machine tool's structural space or machining process requirements; they are not limited to the horizontal installation shown in the attached diagram. By arranging them in different directions, the limited space of the machine tool can be utilized more fully, enabling a more rational layout of multiple tools, adapting to more diverse machining scenarios, and thus further enhancing the applicability and flexibility of the device.

[0036] The force transmission component 200 is installed between adjacent cutter shafts 110 to realize the power transmission between the cutter shafts 110, thereby making the drive transmission more uniform and efficient, and realizing the series connection of power. The cutter shaft 110 is provided with a connecting part 112 for locking different types of tools; wherein the connecting part 112 can be directly connected to tools such as drills and milling cutters with bolts. Of course, in other embodiments, the connecting part 112 can also adopt a quick-change clamping structure, such as a tapered shank quick-release collet or a flexible collet, to realize the quick disassembly and assembly of different tools, further improving the tool changing efficiency.

[0037] The linkage 300 is used to transmit the power generated by the original drive spindle 400 to the cutter shaft 110 of one of the power tool holders 100. It should be noted that the spindle 400 is directly connected to the chopped cutter. The diagram shows a three-jaw chuck fixedly connected to the end of the spindle 400, which securely connects the chopped cutter, achieving stable installation. Simultaneously, the spindle 400 is rotatably mounted within the spindle housing 410 (this is prior art and will not be described further). A drive motor 411 is bolted to the outside of the spindle housing 410, and the drive motor 411 is connected to the spindle 400 via a belt or chain assembly for power transmission. Of course, in other embodiments, the spindle 400 can be directly driven by the drive motor 411.

[0038] Reference Figure 1 , Figure 3 As shown, the power tool device includes a base 500 and a base 450. The base 500 is fixedly mounted on the base 450 with bolts to ensure the stability of the entire device during use, preventing shaking due to vibrations or cutting forces generated during machining and ensuring machining accuracy. The base 450 is mainly used for sliding or fixed mounting on the machine tool bed. For example, it can be mounted on the machine tool bed using a guide rail 510 with a slider, a dovetail groove, or by fixing it with locating pins and bolts, so as to allow for fine-tuning in the horizontal or vertical direction according to different workpiece lengths or machining position requirements. At the same time, the bottom surface of the base 450 is provided with multiple mounting holes according to the machine tool bed structure, so as to flexibly adjust the installation direction and enhance the adaptability of the device.

[0039] A guide rail 510 is fixed to the base 500 by bolts, welding, or integral cutting to support and guide the installation position of the power tool holder 100. In this embodiment, the guide rail 510 has a dovetail-shaped cross-section, which provides good self-positioning and anti-dislodgement effects when the power tool holder 100 is subjected to cutting forces, effectively preventing the power tool holder 100 from slipping or falling off under strong cutting loads, thereby improving the overall safety and reliability of the device. In other embodiments, the cross-section of the guide rail 510 can also be designed in different shapes such as T-shape, rectangle, and square to adapt to different machine tool structure dimensions and assembly requirements, meet diverse installation environment needs, and further expand the applicability of the power tool device.

[0040] During installation, the power tool holder 100 is mounted on the guide rail 510 via a sliding snap-fit ​​mechanism. This allows for convenient and rapid movement, position adjustment, or tool holder replacement according to machining requirements, reducing downtime for debugging and improving machining efficiency. The guide rail 510 is also equipped with a fixing component 600 to further secure the position of the power tool holder 100. This fixing component 600 reliably locks the power tool holder 100 onto the guide rail 510 after it has been adjusted to the predetermined position, preventing displacement due to machine tool vibration or cutting impact during machining and ensuring precise execution of multi-tool operations.

[0041] Specifically, the fixing member 600 includes a first retaining edge 610, a second retaining edge 620, and an adjusting screw 630. The first retaining edge 610 is integrally disposed at the bottom of the power tool holder 100, and the second retaining edge 620 is movably disposed on the other side of the bottom of the power tool holder 100. The adjusting screw 630 slides through the second retaining edge 620 and is threadedly connected to the main body of the power tool holder 100. By tightening the adjusting screw 630, the second retaining edge 620 moves toward the first retaining edge 610, thereby clamping the guide rail 510 and achieving the purpose of precisely fixing the power tool holder 100, preventing it from loosening due to vibration during operation.

[0042] Preferably, the fastener 600 further includes a hook 640. A hook groove 511 is formed along the length of the top of the guide rail 510. The hook 640 is engaged within the hook groove 511, with the hook portion 641 of the hook 640 facing the side of the first retaining edge 610. During installation, the first retaining edge 610 of the power tool holder 100 is first placed on one side of the guide rail 510, and then pressed downwards to deform the hook 640, engaging it in the hook groove 511 for initial positioning. Then, the second retaining edge 620 is pushed by the adjusting screw 630 to achieve a locked fixation. This multi-stage locking method not only improves assembly accuracy but also avoids the risk of failure of a single fastener.

[0043] As an optional embodiment, the bottom of the power tool holder 100 is further provided with a receiving groove 113, in which a spring piece 700 is fixedly installed. The spring piece 700 is U-shaped and initially retracts completely into the receiving groove 113. The two ends of the spring piece 700 are welded to the bottom wall of the receiving groove 113. Multiple slots 710 are provided at the bottom of the spring piece 700, and a retaining strip 711 is formed between adjacent slots 710. Multiple limiting grooves 512 are provided along the length of the top of the guide rail 510. The retaining strip 711 can elastically return to its original position and engage with the limiting groove 512 in its natural state, further improving the positioning effect of the power tool holder 100. The slots 710 help increase the deformability of the spring piece 700, making it easier for the retaining strip 711 to enter the limiting groove 512 during assembly, thus improving installation convenience.

[0044] Preferably, a baffle 1131 is slidably installed on the side of the receiving groove 113 near the guide rail 510. The baffle 1131 is used to release the spring 700 by pulling or pushing the baffle 1131 after the power tool holder 100 has moved to the designated position. This allows the retaining strip 711 to protrude and engage with the limiting groove 512, achieving rapid positioning and fixing of the power tool holder 100 and effectively preventing its movement along the length of the guide rail 510. When engagement is not required, the spring retracts into the receiving groove 113, and the baffle 1131 can be pushed back to its original position, preventing the retaining strip 711 from accidentally protruding and ensuring the repeatability and positioning accuracy of the device.

[0045] Reference Figure 3 , Figure 6 As shown, a transmission box 800 is also mounted on the base 500. The length of the transmission box 800 is longer than the length of a single power tool holder 100. A transmission shaft 810 is rotatably mounted inside the transmission box 800. The transmission shaft 810 is supported at both ends and the middle of the transmission box 800 by bearings 111 to enhance its load-bearing capacity. Since the sub-spindle box 410 is usually long, this structural configuration can well adapt to the length of the sub-spindle box 410, while ensuring the smooth rotation of the transmission shaft 810, reducing runout and eccentricity, and extending its service life. A first gear 811 is coaxially fixedly mounted on the transmission shaft 810. The force transmission component 200 includes a second gear 210 mounted on each tool shaft 110. The second gears 210 on adjacent tool shafts 110 mesh with each other, and the first gear 811 meshes with one of the second gears 210 to realize the linkage drive of multiple tool shafts 110.

[0046] To ensure reliable transmission and ease of maintenance, the power tool holder 100 has through-holes on both sides of the second gear 210, ensuring that the second gear 210 can mesh with each other and also mesh with the first gear 811. The through-holes also allow for inspection of the meshing. The through-hole on the side furthest from the transmission box 800 can be sealed with a bolt-on cover 114, preventing dust and impurities from entering and affecting gear transmission, and facilitating the injection of lubricant for lubrication and maintenance.

[0047] In other embodiments, the force transmission component 200 can be not only multiple sets of meshing gears, but also synchronous belt 320 wheel sets, sprocket and chain sets or multiple sets of coupling linkages, which can be flexibly selected according to different transmission accuracy and space requirements, further enhancing the applicability.

[0048] To achieve power transmission using the existing drive spindle 400 of the tool shroud sub-spindle, the linkage 300 specifically employs a combination of a pair of synchronous pulleys 310 and a synchronous belt 320. The pair of synchronous pulleys 310 are coaxially mounted on the tool shroud sub-spindle 400 and the drive shaft 810, respectively, and the synchronous belt 320 is wound between the two synchronous pulleys 310, achieving efficient power transmission. Of course, in other embodiments, the synchronous belt 320 and synchronous pulleys 310 can be replaced with sprockets and chains to achieve a similar transmission effect.

[0049] It should be noted that the reason why the motor drive was not directly installed on the transmission box 800 or the power tool holder 100 is to avoid increasing the size of the device and the complexity of the wiring, while reducing the cost, so that this utility model can be better integrated into the existing bar tool machine tool and reduce the difficulty of modification.

[0050] As a further optional design, one end of the guide rail 510 is also integrally formed with a positioning strip 513. The transmission box 800 has a positioning groove 115 at the position corresponding to the positioning strip 513. In this way, during installation, the positioning groove 115 can cooperate with the positioning strip 513 to quickly complete the initial positioning, so that the first gear 811 and the second gear 210 are automatically in a good meshing position, avoiding multiple manual adjustments, significantly improving installation efficiency and reducing errors.

[0051] Reference Figure 1 , Figure 2 As shown, a cover 900 is also installed on the base 500 to completely cover and protect the transmission structure and the power tool holder 100. This prevents metal chips, coolant, and external dust generated during the cutting process from entering the transmission area, avoiding jamming, wear, or blockage, thereby extending the service life of the transmission mechanism and the tool holder and ensuring continuous stability of the machining process. The cover 900 can be made of high-strength metal sheet or engineering plastic sheet to balance rigidity and weight requirements. The cover 900 can be detached from the base 500 via bolts, facilitating quick opening for inspection of the transmission structure or replacement of lubricating oil during later maintenance.

[0052] The front end of the cover 900 has a front port 910 along its length for the power tool holder 100 to extend out. The length of the front port 910 is preferably designed to be greater than the total length of multiple sets of power tool holders 100 spliced ​​together, to accommodate different configurations of the number of power tool holders 100, thereby improving structural compatibility and versatility. When adding or removing power tool holders 100 according to different workpiece processing requirements, the cover 900 can be replaced to meet installation needs, reducing operating costs.

[0053] To prevent unused openings from being directly exposed when fewer power tool holders 100 are installed, thus preventing chips and dust from entering the housing 900, a folding elastic plate 911 is fixedly installed on one side of the front port 910. A limiting strip 912 is installed on the side of the folding elastic plate 911 away from its fixed end, and both ends of the limiting strip 912 are slidably engaged with the front port 910. In actual use, the folding elastic plate 911 can push the limiting strip 912 to seal the space left by the uninstalled tool holders under the action of elastic restoring force, achieving a good sealing effect and preventing external chips from falling into the transmission structure. At the same time, when the number of power tool holders 100 needs to be increased, the folding elastic plate 911 can deform and naturally shrink, automatically adapting to the arrangement length of more tool holders, ensuring that the housing 900 and the power tool holders 100 are still tightly fitted, thereby improving the sealing and protection effect.

[0054] Of course, in this embodiment, separate protective covers are also installed on the outside of the sub-spindle housing 410 and the drive motor 411. These protective covers typically adopt a quick-release structure, such as a hinged, quick-lock, or bolted structure, to facilitate daily inspection, maintenance, or emergency repairs. Such protective covers can not only effectively prevent coolant splashes, metal shavings, and fine particles in the air from directly contacting the surfaces of the drive motor 411 and the sub-spindle housing 410, preventing electrical components from getting damp or premature corrosion of mechanical surfaces, but also play a certain role in sound insulation and vibration absorption during equipment operation, further improving the overall reliability and safety of the machine.

[0055] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A power knife device, characterized in that, include: A power tool holder (100) is provided in multiple sets, and the multiple sets of power tool holders (100) are spliced ​​together. Each power tool holder (100) has a rotatable tool shaft (110). A force transmission component (200) is disposed between adjacent cutter shafts (110) to realize the power transmission between the cutter shafts (110). The cutter shaft (110) is provided with a connecting part (112) for locking different types of cutters. Linkage component (300) is used to transmit the power generated by the original drive bar sub-spindle (400) to the cutter shaft (110) of one of the power tool holders (100).

2. The powered knife device of claim 1, wherein, The power knife device includes a base (500), a guide rail (510) is provided on the base (500), the power knife holder (100) is slidably engaged on the guide rail (510), and a fastener (600) for fixing the base (500) is provided on the guide rail (510).

3. The powered knife device of claim 2, wherein, The fixing member (600) includes a first retaining edge (610), a second retaining edge (620), and an adjusting screw (630). The first retaining edge (610) is fixedly disposed at the bottom of the power tool holder (100), and the second retaining edge (620) is movably disposed on the other side of the bottom of the power tool holder (100). The adjusting screw (630) slides through the second retaining edge (620) and is threadedly connected to the power tool holder (100) so that the first retaining edge (610) and the second retaining edge (620) can be clamped on both sides of the power tool holder (100) in the width direction.

4. The power knife device of claim 3, wherein, The fastener (600) also includes a hook (640), and the top of the guide rail (510) is provided with a hook groove (511) along the length direction. The hook (640) is hooked onto the hook groove (511), and the hook part (641) of the hook (640) faces the side of the first locking edge (610).

5. The power knife device of claim 4, wherein, The bottom of the power tool holder (100) is provided with a receiving groove (113), and a spring piece (700) is fixedly installed in the receiving groove (113). The bottom of the spring piece (700) is provided with multiple slots (710), and a retaining strip (711) is formed between adjacent slots (710). The top of the guide rail (510) is provided with multiple limiting grooves (512) along the length direction, and the retaining strip (711) is used to engage with the limiting groove (512).

6. The power knife device of claim 5, wherein, A baffle (1131) is slidably provided on the side of the receiving groove (113) near the guide rail (510). The baffle (1131) is used to prevent the retaining strip (711) of the spring piece (700) from protruding outside the receiving groove (113) when it elastically deforms.

7. The powered knife device of claim 2, wherein, A transmission box (800) is provided on the base (500). The length of the transmission box (800) is longer than the length of the power tool holder (100). A transmission shaft (810) is rotatably arranged inside the transmission box (800). A first gear (811) is provided on the transmission shaft (810). The force transmission component (200) includes a second gear (210). The second gears (210) adjacent to the tool shaft (110) are meshed with each other. The first gear (811) and the second gear (210) are meshed with each other. The power tool holder (100) is arranged through the second gear (210) on both sides.

8. The power knife device of claim 7, wherein, The linkage (300) includes a pair of synchronous pulleys (310) and a synchronous belt (320). The pair of synchronous pulleys (310) are coaxially fixed on the main spindle (400) of the blade assembly and the transmission shaft (810), respectively, and the synchronous belt (320) is wound around the pair of synchronous pulleys (310).

9. The power knife device of claim 7, wherein, A positioning bar (513) is fixedly provided at one end of the guide rail (510), and a positioning groove (115) is provided on the transmission box (800) at a position corresponding to the positioning bar (513).

10. The power knife device of claim 2, wherein, The base (500) is provided with a cover (900), and the cover (900) is provided with a front port (910) for the power knife holder (100) to extend out. The length of the front port (910) is longer than the length of the multiple sets of power knife holders (100) spliced ​​together. A folding elastic plate (911) is fixedly provided on one side inside the front port (910). A limit strip (912) is fixedly provided on the side of the folding elastic plate (911) away from its fixed end. The two ends of the limit strip (912) in the length direction are slidably engaged with the front port (910).

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