Modular tool holder for a numerical controlled vertical lathe

Abstract

This utility model relates to the field of machine tool fixture technology, and provides a modular tool post for CNC vertical lathes. It includes an adapter assembly mounted on the CNC vertical lathe, with a downward-opening connecting hole and a strip-shaped slot on the side wall of the hole. A connecting tool holder is also included, featuring an insertion part with strip-shaped locking parts extending from both sides. The connecting tool holder and the adapter assembly are assembled and fixed through the connection hole and the insertion part. The strip-shaped locking parts are inserted into the strip-shaped slot to limit the horizontal deflection and sway of the connecting tool holder on the adapter assembly. By utilizing the rapid assembly of the adapter assembly and the connecting tool holder, quick switching between different tools on the same adapter assembly is achieved, solving the problem of cumbersome switching caused by differences in tool structure in traditional tool posts.

Description

Technical Field

[0001] This utility model relates to the field of machine tool fixture technology, specifically to a modular tool post for a CNC vertical lathe. Background Technology

[0002] In the field of modern machining, CNC vertical lathes are widely used in machining various complex parts due to their high efficiency and precision. For machining high-hardness materials (such as alloys with a hardness of HRC60 or higher), conventional tools are insufficient due to the material's unique properties, typically requiring the use of cubic boron nitride (CBN) indexable tools. In actual production, the use of the CNC vertical lathe's tool post presents several challenges. First, the parts being machined often have complex structures and numerous specifications, necessitating frequent changes of different types of CBN indexable tools in small-batch production. Each tool change requires tedious tool parameter calibration, which not only consumes significant auxiliary time and drastically reduces the equipment's effective operating rate but can also affect the machining accuracy due to calibration errors. Second, traditional CNC vertical lathe tool post structures are functionally limited and lack efficient modular design, making it difficult to meet the repeatability requirements of high-precision machining. When switching tools between different types of machining operations such as turning and drilling, it is impossible to achieve a quick and precise switch. It often takes a lot of time to adjust and is difficult to adapt to the diverse machining needs of complex parts. This not only restricts the further improvement of production efficiency, but also increases production costs due to frequent process changes, which is not conducive to achieving the goal of high-efficiency and low-cost production. Utility Model Content

[0003] To overcome the above-mentioned defects, the embodiments of this utility model provide a modular tool post for CNC vertical lathes, which solves the problems of traditional CNC vertical lathe tool posts in machining complex and diverse parts, which are difficult to quickly switch tools to meet diverse machining needs due to insufficient positioning accuracy, as well as the technical problems of low efficiency due to frequent tool changes and calibration.

[0004] According to one aspect, at least one embodiment of the present invention provides a modular tool post for a CNC vertical lathe, comprising:

[0005] A connecting assembly is mounted on the CNC vertical lathe. The connecting assembly has a downward-facing connecting hole, and a strip-shaped groove is formed on the side wall of the connecting hole.

[0006] A connecting tool holder is provided with an insertion part, and strip-shaped locking parts extend from both sides of the insertion part. The connecting tool holder and the adapter assembly are used to achieve assembly and fixation through the connection hole and the insertion part. The strip-shaped locking parts are used to insert into the strip-shaped slot to limit the horizontal deflection and swing of the connecting tool holder on the adapter assembly.

[0007] As a further technical solution, the adapter component includes:

[0008] A fixed base is fixedly mounted on the CNC vertical lathe. A transfer connecting seat is adjustable at the bottom of the fixed base, and the connecting hole is opened at the bottom of the transfer connecting seat.

[0009] As a further technical solution, the bottom of the fixed seat is provided with a wedge-shaped groove that opens downward and extends horizontally, and the transfer connecting seat is integrally formed with a first wedge-shaped protrusion. The fixed seat and the transfer connecting seat are connected by horizontal sliding engagement through the first wedge-shaped protrusion and the wedge groove.

[0010] As a further technical solution, the first wedge-shaped protrusion is located on one side of the transfer connector and slides against the inclined sidewall of one side of the wedge-shaped groove. The other side of the transfer connector has a receiving groove, and the system further includes:

[0011] The connecting block has an insertion protrusion and a second wedge-shaped protrusion on its upper and lower sides, respectively. The insertion protrusion is used to insert into and slide in the receiving groove, and the connection between the connecting block and the transfer connecting seat is limited by the engagement between the insertion protrusion and the inner wall of the receiving groove. The second wedge-shaped protrusion is used to slide against the inclined side wall on the other side of the wedge-shaped groove.

[0012] As a further technical solution, the receiving groove and the connecting block are in a clearance fit in the horizontal direction. The transfer connecting seat is also provided with an intermediate groove. The side wall of one side of the intermediate groove is the first wedge-shaped protrusion. The other side of the intermediate groove is connected to the receiving groove. The side of the connecting block away from the second wedge-shaped protrusion is provided with a resisted inclined surface.

[0013] It also includes a clamping block, which slides up and down within the intermediate groove. The clamping block has a pressing slope on one side near the receiving groove, and the other side is used to abut against the first wedge-shaped protrusion. After the clamping block is configured to slide down, the pressing slope slides against the pressed slope to push the second wedge-shaped protrusion against the inner wall of the wedge-shaped groove on the corresponding side. Through the abutment between the clamping block and the first wedge-shaped protrusion, the transfer connecting seat is pushed in the opposite direction so that the first wedge-shaped protrusion abuts against the other side wall of the wedge-shaped groove.

[0014] As a further technical solution, the bottom of the connecting tool holder is provided with an outer circular turning tool groove, and bolt fixing holes are provided through the two side walls of the outer circular turning tool groove. The outer circular turning tool groove is used to set an outer circular turning tool.

[0015] As a further technical solution, the bottom of the connecting tool holder extends downward to form an extended turning tool bar, and the bottom of the extended turning tool bar is provided with an inner turning tool groove, which is used to set an inner turning tool.

[0016] As a further technical solution, a tapered hole tool bar extends downward from the bottom of the connecting tool holder, and a drill bit receiving groove is formed inside the tapered hole tool bar along the length direction. The drill bit receiving groove is used to hold a drill bit.

[0017] As a further technical solution, the connecting tool holder and the transfer connecting seat are fastened together by bolts.

[0018] The beneficial effects of this utility model are as follows:

[0019] The adapter component and connecting tool holder in this invention achieve rapid assembly through the cooperation of the connecting hole and the insertion part, reducing the complex alignment steps in the traditional tool holder assembly process and shortening the assembly time. The cooperation between the strip slot and the strip insertion part directly restricts the horizontal deflection and swing of the connecting tool holder, avoiding positioning deviations caused by tool deflection during machining and improving the positioning accuracy of the tool holder. The connecting tool holder adopts the same modular design, allowing connecting tool holders with different tools to share the same connecting hole and strip slot structure of the adapter component, realizing rapid switching of different tools on the same adapter component and solving the problem of cumbersome switching caused by differences in tool structure in traditional tool holders. The synergistic effect of the above structures eliminates the need for frequent calibration of tool parameters during tool changing, reduces auxiliary machining time, improves the effective operating rate of the equipment, and reduces the cost increase caused by machining errors by improving positioning accuracy, meeting the efficiency and accuracy requirements of diversified machining of complex parts. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a modular tool holder for a CNC vertical lathe in one embodiment of the present invention;

[0022] Figure 2 for Figure 1 A schematic diagram of the internal cross-sectional structure of the adapter component in the embodiment;

[0023] Figure 3 for Figure 2 A partially enlarged structural diagram of section A in the middle;

[0024] Figure 4 for Figure 2 A partially enlarged structural diagram of section B in the middle;

[0025] Figure 5 This is a schematic diagram of the connecting tool holder with an external cylindrical turning tool groove in this utility model;

[0026] Figure 6 This is a schematic diagram of the connecting tool holder with an inner hole tool groove in this utility model;

[0027] Figure 7 This is a schematic diagram of the connecting tool holder with a drill bit receiving groove in this utility model.

[0028] In the diagram: Adapter assembly-1, connecting hole-101, strip slot-102, connecting tool holder-2, insertion part-201, strip slot-202, fixing seat-3, transfer connecting seat-4, wedge groove-301, first wedge protrusion-401, receiving groove-402, connecting block-5, insertion protrusion-501, second wedge protrusion-502, intermediate groove-403, abutted inclined surface-503, clamping block-6, abutting inclined surface-601, external turning tool groove-203, extended turning tool bar-204, internal turning tool groove-205, tapered hole tool bar-206, drill bit receiving groove-207. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0030] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0031] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between 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.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] like Figures 1-7As shown, this invention illustrates a modular tool post for a CNC vertical lathe according to one embodiment. An adapter assembly 1 is fixedly mounted at the tool post mounting position on the CNC vertical lathe. The connecting hole 101 on the adapter assembly 1 is a vertically extending hole structure with its opening facing downwards. Slotted grooves 102 are respectively formed on the opposite side walls of the connecting hole 101, extending axially along the connecting hole 101. The insertion portion 201 of the connecting tool holder 2 is a columnar structure adapted to the connecting hole 101, with its two sides extending outwards to form slotted insertion portions 202. The extending direction of the slotted insertion portions 202 is consistent with the axial direction of the insertion portion 201. During assembly, the insertion part 201 of the connecting knife holder 2 is aligned with the connecting hole 101 of the adapter assembly 1 and inserted vertically. During the insertion process, the strip-shaped locking part 202 slides synchronously along the strip-shaped slot 102 until the insertion part 201 is fully inserted into the connecting hole 101. At this time, the adapter assembly 1 and the connecting knife holder 2 form an assembly and fixing relationship. The strip-shaped locking part 202 fits against the side wall of the strip-shaped slot 102, restricting the deflection of the connecting knife holder 2 around the axis of the connecting hole 101 in the horizontal plane and its swing in the horizontal direction. Alternatively, the strip groove 102 may be recessed radially inward along the connecting hole 101, and the strip insertion part 202 may be a protruding structure adapted to the strip groove 102, extending radially outward along the insertion part 201; or the connecting hole 101 may be a non-circular hole, and the insertion part 201 may be a non-circular columnar structure adapted to the connecting hole 101, with the strip groove 102 formed on the inner sidewall of the connecting hole 101 and the strip insertion part 202 provided on the outer sidewall of the insertion part 201. The horizontal deflection and swing are restricted by the cooperation of the non-circular structure, the strip groove 102, and the strip insertion part 202.

[0036] The adapter assembly 1 and the connecting tool holder 2 achieve rapid assembly through the cooperation of the connecting hole 101 and the insertion part 201, reducing the complex alignment steps in the traditional tool holder assembly process and shortening the assembly time. The cooperation between the strip slot 102 and the strip insertion part 202 directly restricts the horizontal deflection and swing of the connecting tool holder 2, avoiding positioning deviations caused by tool deflection during machining and improving the positioning accuracy of the tool holder. The connecting tool holder 2 adopts the same modular design, allowing connecting tool holders 2 with different tools to share the same connecting hole 101 and strip slot 102 structure of the adapter assembly 1, realizing rapid switching of different tools on the same adapter assembly 1, and solving the problem of cumbersome switching caused by differences in tool structure in traditional tool holders. The synergistic effect of the above structures eliminates the need for frequent calibration of tool parameters during tool changing, reduces auxiliary machining time, improves the effective operating rate of the equipment, and reduces the cost increase caused by machining errors by improving positioning accuracy, meeting the efficiency and accuracy requirements of diversified machining of complex parts.

[0037] Furthermore, the fixed base 3 in the adapter assembly 1 is fixed on the CNC vertical lathe, and the intermediate connecting base 4 is located at the bottom of the fixed base 3, forming an adjustable connection between the two. The bottom of the intermediate connecting base 4 has a connecting hole 101, and the strip groove 102 on the side wall of the connecting hole 101 engages with the strip insertion part 202 of the connecting tool holder 2. When adjusting the position of the intermediate connecting base 4 relative to the fixed base 3, the position can be adjusted by sliding the horizontal slide rail at the bottom of the fixed base 3 with the slider at the top of the intermediate connecting base 4, or by engaging the bolt on the intermediate connecting base 4 with the horizontal elongated hole on the fixed base 3. The bolt slides along the elongated hole to the target position and then locks it in place. After adjustment, the connecting hole 101 of the intermediate connecting base 4 maintains its engagement structure with the insertion part 201 of the connecting tool holder 2, and the strip groove 102 still restricts the horizontal deflection and swing of the connecting tool holder 2.

[0038] The adjustable design of the fixed base 3 and the transfer connecting base 4 allows the position of the connecting hole 101 to be adjusted along with the transfer connecting base 4. This structure, combined with the modular design of the connecting tool holder 2, enables the same set of connecting tool holders 2 to adapt to the processing requirements of parts of different sizes by adjusting the position of the transfer connecting base 4, without replacing the entire adapter assembly 1, thus reducing component replacement steps when adapting the equipment to different parts. Simultaneously, after position adjustment, the engagement between the connecting hole 101 and the insertion part 201, and between the strip slot 102 and the strip locking part 202, maintains the original positioning accuracy, avoiding positioning deviations caused by position adjustments and ensuring that processing accuracy is not reduced while expanding the processing range. This combination further enhances the adaptability of the tool holder to diverse processing needs, reduces equipment adjustment time due to differences in part size, and, in conjunction with the features of rapid tool change and high-precision positioning, further improves production efficiency.

[0039] Furthermore, the bottom of the fixing seat 3 is provided with a downward-opening, horizontally penetrating wedge-shaped groove 301. The cross-section of the wedge-shaped groove 301 is wedge-shaped, and its two side walls extend horizontally and slope inward. The top of the transfer connecting seat 4 is integrally formed with a first wedge-shaped protrusion 401. The cross-section of the first wedge-shaped protrusion 401 is adapted to the wedge-shaped groove 301, and its two side walls are in contact with the side walls of the wedge-shaped groove 301. When the fixing seat 3 and the transfer connecting seat 4 are assembled, the first wedge-shaped protrusion 401 slides horizontally into the wedge-shaped groove 301 until it reaches the preset position. A horizontal sliding connection is formed by the cooperation between the wedge-shaped groove 301 and the side walls of the first wedge-shaped protrusion 401, thereby realizing the position adjustment of the transfer connecting seat 4 relative to the fixing seat 3. A connection hole 101 is provided at the bottom of the transfer connector 4. The strip groove 102 on the side wall of the connection hole 101 cooperates with the strip insertion part 202 of the connecting knife holder 2, and the insertion part 201 and the connection hole 101 are assembled and fixed.

[0040] Optionally, the wedge groove 301 is provided along the length direction of the fixed base 3, and the first wedge protrusion 401 extends along the length direction of the transfer connecting base 4, and the two slide through full-length contact; or the inner side wall of the wedge groove 301 is provided with a guide strip in the horizontal direction, and the outer side wall of the first wedge protrusion 401 is provided with a corresponding guide groove, and the sliding guidance is enhanced by the cooperation of the guide strip and the guide groove; or two wedge grooves 301 are provided at intervals at the bottom of the fixed base 3, and two first wedge protrusions 401 are integrally formed at the top of the transfer connecting base 4, and the connection stability is improved by multiple sets of wedge cooperation.

[0041] The horizontal sliding engagement between the wedge groove 301 and the first wedge protrusion 401 allows the transfer connector 4 to slide along a fixed path during position adjustment, avoiding potential offsets in traditional position adjustment structures and improving the accuracy of position adjustment. The sidewall fitting characteristic of the wedge structure allows for self-locking under pressure during machining, reducing loosening of the transfer connector 4 due to cutting forces and enhancing the structure's load-bearing capacity. This structure, in conjunction with the connecting hole 101, insertion part 201, and strip-shaped slot 102 and locking part 202, expands the tool holder's machining range while maintaining the rapid assembly characteristics of a modular design. By improving the stability and accuracy of position adjustment, it further reduces the calibration requirements after tool changes, ensuring efficient and precise tool switching across a wider range of machining positions and adapting to more diverse machining scenarios.

[0042] Furthermore, the wedge-shaped groove 301 at the bottom of the fixing seat 3 extends horizontally, and its two side walls are symmetrically inclined structures. A first wedge-shaped protrusion 401 is provided on one side of the transfer connecting seat 4. The inclined surface of the first wedge-shaped protrusion 401 fits against the inclined side wall of the wedge-shaped groove 301, allowing it to slide horizontally along this side wall. A receiving groove 402 is provided on the other side of the transfer connecting seat 4 in a horizontal direction, and the inner wall of the receiving groove 402 has a protrusion extending along its length. The upper and lower sides of the connecting block 5 are respectively provided with an insertion protrusion 501 and a second wedge-shaped protrusion 502. The outer wall of the insertion protrusion 501 is provided with a groove that matches the protrusion on the inner wall of the receiving groove 402. The insertion protrusion 501 is inserted along the length of the receiving groove 402, and the groove and the protrusion engage to realize the connection limit between the connecting block 5 and the transfer connecting seat 4. At this time, the inclined surface of the second wedge-shaped protrusion 502 is in contact with the inclined side wall of the other side of the wedge groove 301. As the connecting block 5 slides in the receiving groove 402, the second wedge-shaped protrusion 502 slides synchronously along the inclined side wall of the wedge groove 301, driving the transfer connecting seat 4 to slide along one side wall of the wedge groove 301 through the first wedge-shaped protrusion 401, thereby realizing the position adjustment of the transfer connecting seat 4 relative to the fixed seat 3.

[0043] The receiving groove 402 is a T-shaped groove, and the insertion protrusion 501 is a T-shaped protrusion adapted to the T-shaped groove. The connection and limiting are achieved through the snap-fit ​​of the T-shaped structure; or the insertion protrusion 501 of the connecting block 5 is inserted along the depth direction of the receiving groove 402. The bottom of the receiving groove 402 is provided with a positioning hole, and the insertion protrusion 501 is provided with a corresponding positioning pin. The positioning pin is inserted into the positioning hole to enhance the limiting effect; or the first wedge-shaped protrusion 401 and the second wedge-shaped protrusion 502 have different inclination angles, and respectively cooperate with the inclined sidewalls of the wedge-shaped groove 301 at corresponding angles. Different adjustment precisions are achieved through the angle difference.

[0044] The first wedge-shaped protrusion 401 and the second wedge-shaped protrusion 502, respectively, engage with the inclined sidewalls on both sides of the wedge-shaped groove 301, transforming the sliding of the connecting block 5 within the receiving groove 402 into the horizontal position adjustment of the transfer connecting seat 4. The guiding effect of the wedge structure enhances the stability of the position adjustment, preventing deviation during adjustment. The locking and limiting action of the insertion protrusion 501 and the receiving groove 402 ensures that the connecting block 5 and the transfer connecting seat 4 remain relatively fixed after adjustment, preventing loosening due to vibration during machining and further enhancing the overall rigidity of the tool holder. The above structure, in conjunction with the connecting hole 101, the insertion part 201, the strip-shaped groove 102, and the locking part 202, expands the machining range of the tool by adjusting the position of the transfer connecting seat 4, while maintaining rapid tool change and positioning accuracy. Furthermore, the contact method of the wedge structure increases the force-bearing area, reduces local stress concentration, reduces structural wear after long-term use, extends the service life of the tool holder, and improves stability during machining, indirectly improving the machining quality of the parts.

[0045] Furthermore, there is a horizontal gap between the receiving groove 402 and the insertion protrusion 501 of the connecting block 5. One side wall of the intermediate groove 403 on the transfer connecting seat 4 is a first wedge-shaped protrusion 401, and the other side is connected to the receiving groove 402. The connecting block 5 has a resisting inclined surface 503 on the side away from the second wedge-shaped protrusion 502, and the resisting inclined surface 503 is inclined towards the intermediate groove 403. The pressing block 6 is columnar and slides up and down along the vertical direction of the intermediate groove 403. The side of it near the receiving groove 402 has a pressing inclined surface 601 that matches the inclination angle of the resisting inclined surface 503, and the other side is a plane for abutting against the side of the first wedge-shaped protrusion 401. After the position of the transfer connector 4 is adjusted, the driving clamping block 6 descends along the intermediate groove 403, and the pressing inclined surface 601 contacts and slides relative to the pressed inclined surface 503, pushing the connector 5 to move away from the intermediate groove 403, so that the second wedge-shaped protrusion 502 tightly presses against the inclined side wall of the corresponding side of the wedge-shaped groove 301. At the same time, the other side of the clamping block 6 abuts against the first wedge-shaped protrusion 401, pushing the transfer connector 4 in the opposite direction, causing the first wedge-shaped protrusion 401 to fit tightly against the other side wall of the wedge-shaped groove 301, thus achieving the fastening of the transfer connector 4 on the fixed base 3.

[0046] The clearance fit between the receiving groove 402 and the connecting block 5 provides room for position adjustment, facilitating the flexible movement of the transfer connecting seat 4. When the clamping block 6 descends, the sliding fit between the pressing inclined surface 601 and the pressed inclined surface 503 converts the vertical driving force into the horizontal thrust of the connecting block 5, causing the second wedge-shaped protrusion 502 to abut tightly against the side wall of the wedge-shaped groove 301. Simultaneously, the clamping block 6 pushes the first wedge-shaped protrusion 401 in the opposite direction, achieving a tight fit between the first wedge-shaped protrusion 401 and the other side wall of the wedge-shaped groove 301. This bidirectional clamping structure utilizes the force-amplifying effect of the inclined surface to generate a large clamping force with a small driving force, ensuring that the transfer connecting seat 4 does not shift during processing, thus improving the overall rigidity and positioning stability of the tool holder. The structure, in conjunction with the wedge groove 301, the first wedge protrusion 401, and the connecting block 5, retains the position adjustment function while eliminating the vibration risk caused by the gap through mechanical self-locking characteristics. In synergy with the quick positioning structure of the connecting tool holder 2, it further reduces machining errors and lowers the risk of tool deviation caused by structural loosening. Thus, while ensuring tool changing efficiency, it improves the consistency of machining accuracy for complex parts.

[0047] Furthermore, the bottom of the connecting tool holder 2 is provided with an external turning tool groove 203 along the horizontal direction. The extension direction of the external turning tool groove 203 is perpendicular to the axial direction of the insertion part 201. Bolt fixing holes are provided through the corresponding positions on both side walls, and the axis of the bolt fixing holes is perpendicular to the extension direction of the external turning tool groove 203. The tool shank of the external turning tool is inserted into the external turning tool groove 203, and the bolts pass through the bolt fixing holes on both sides and are tightened. The external turning tool is clamped and fixed on the connecting tool holder 2 by the threaded engagement of the bolts with the hole walls. When assembling the connecting tool holder 2, its insertion part 201 engages with the connecting hole 101 of the adapter assembly 1, and the strip-shaped insert part 202 is inserted into the strip-shaped slot 102, realizing the connection between the external turning tool and the CNC vertical lathe.

[0048] The external turning tool slot 203 provides a standardized mounting position for the external turning tool. Combined with the bolt fixing holes, it enables quick tool clamping and positioning. Adapting to the modular design of the connecting tool holder 2, it allows the external turning tool to quickly connect with the adapter assembly 1 via the same connecting tool holder 2. The bolt fixing method uses thread preload to ensure the external turning tool does not loosen during machining. This, along with the functions of the strip groove 102 and the locking part 202 limiting horizontal deflection, reduces tool vibration during external turning and improves turning accuracy. This structure, in conjunction with the position adjustment function of the transfer connecting seat 4, allows for adaptation to the external turning of parts with different diameters by adjusting the position of the connecting tool holder 2, expanding the machining range of the external turning tool while maintaining the advantages of quick tool change from the modular tool holder. This further shortens the preparation time for external turning operations and improves the equipment's response efficiency to diverse external turning needs.

[0049] Furthermore, the bottom of the connecting tool holder 2 extends vertically downward to form an extended turning tool shank 204. The bottom of the extended turning tool shank 204 has a horizontally formed internal turning tool groove 205, the extension direction of which is perpendicular to the axial direction of the insertion portion 201. The shank portion of the internal turning tool is embedded in the internal turning tool groove 205 and fixed by fasteners penetrating the sidewall of the internal turning tool groove 205. During assembly, the insertion portion 201 of the connecting tool holder 2 is inserted into the connecting hole 101 of the adapter assembly 1, and the strip-shaped locking portion 202 engages with the strip-shaped locking groove 102, allowing the internal turning tool to extend through the extended turning tool shank 204 to the inner hole position of the workpiece to be machined.

[0050] The extended tool holder 204 allows the internal turning tool to penetrate deep into the inner hole area of ​​the part, meeting the needs of deep hole machining. Its length design, combined with the modular structure of the connecting tool holder 2, enables the internal turning tool to connect with the adapter component 1 via a unified interface, achieving rapid switching with other tools such as external turning tools. The internal turning tool slot 205 provides a stable mounting reference for the internal turning tool. Working in conjunction with the positioning functions of the strip-shaped retaining part 202 and the strip-shaped retaining slot 102, it ensures that the axis of the internal turning tool remains coaxial with the axis of the inner hole of the part, reducing dimensional errors in internal hole machining. This structure, combined with the position adjustment function of the transfer connecting seat 4, allows for the adjustment of the horizontal position of the connecting tool holder 2 to adapt to the machining of parts with different hole diameters, expanding the applicability of internal turning while maintaining the tool changing efficiency of the modular tool holder. This solves the problem of cumbersome tool changing caused by the special installation structure of traditional internal turning tools, further improving the equipment's adaptability to machining the inner holes of complex parts.

[0051] Furthermore, the bottom of the connecting tool holder 2 extends vertically downward to form a tapered hole tool shank 206. The axis of the tapered hole tool shank 206 is collinear with the axis of the insertion part 201. A drill bit receiving groove 207 is formed inside the tapered hole tool shank 206 along its length direction, and the extension direction of the drill bit receiving groove 207 is consistent with the length direction of the tapered hole tool shank 206. The shank portion of the drill bit is inserted into the drill bit receiving groove 207 and fixed by fasteners that pass through the side wall of the tapered hole tool shank 206 and abut against the drill bit shank. During assembly, the insertion part 201 of the connecting tool holder 2 mates with the connecting hole 101 of the adapter assembly 1, and the strip-shaped locking part 202 is inserted into the strip-shaped locking groove 102, allowing the drill bit to extend through the tapered hole tool shank 206 to the position to be machined.

[0052] The tapered hole tool holder 206 provides extended support for the drill bit, enabling it to adapt to the machining requirements of special structures such as tapered holes. The drill bit receiving groove 207 provides a stable mounting space for the drill bit, ensuring axial stability during machining. This structure, combined with the modular design of the connecting tool holder 2, allows the drill bit to be quickly connected to the adapter assembly 1 via a unified insertion part 201, enabling rapid switching with other tools such as lathe tools. The cooperation with the strip-shaped insertion part 202 and the strip-shaped slot 102 ensures the positioning accuracy of the drill bit and reduces skew during drilling. Simultaneously, this structure, in conjunction with the position adjustment function of the transfer connecting seat 4, allows the position of the connecting tool holder 2 to adapt to drilling requirements at different locations, expanding the applicability of drilling operations and improving the equipment's adaptability to drilling complex parts while maintaining tool changing efficiency.

[0053] Furthermore, after the insertion part 201 of the connecting knife holder 2 is inserted into the connecting hole 101 of the transfer connecting seat 4, a threaded hole is opened through the side wall of the transfer connecting seat 4. The bolt passes through the threaded hole and abuts against the outer wall of the insertion part 201. Tightening the bolt makes the connecting knife holder 2 and the transfer connecting seat 4 secure.

[0054] The bolt fastening structure further enhances the assembly stability of the connecting tool holder 2 and the transfer connecting seat 4. The cooperation with the strip-shaped insert 202 and the strip-shaped slot 102 prevents the connection from loosening due to vibration during processing, ensuring stable positioning accuracy. At the same time, the bolt connection is easy to disassemble and does not affect the quick tool change characteristics of the modular tool holder.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A modular tool post for a CNC vertical lathe, characterized in that, include: A connecting component (1) is provided on the CNC vertical lathe. The connecting component (1) has a downward-facing connecting hole (101) and a strip groove (102) is provided on the side wall of the opening of the connecting hole (101). A connecting knife holder (2) is provided with an insertion part (201). A strip-shaped locking part (202) extends on both sides of the insertion part (201). The connecting knife holder (2) and the adapter assembly (1) are used to achieve assembly and fixation through the connection hole (101) and the insertion part (201). The strip-shaped locking part (202) is used to insert into the strip-shaped slot (102) to limit the horizontal deflection and swing of the connecting knife holder (2) on the adapter assembly (1).

2. A modular tool post for a CNC vertical lathe according to claim 1, characterized in that, The adapter component (1) includes: A fixed seat (3) is fixed on the CNC vertical lathe. The bottom of the fixed seat (3) is adjustablely provided with a transfer connecting seat (4). The connecting hole (101) is opened at the bottom of the transfer connecting seat (4).

3. A modular tool post for a CNC vertical lathe according to claim 2, characterized in that, The bottom of the fixed seat (3) is provided with a wedge-shaped groove (301) that opens downward and extends horizontally. The transfer connecting seat (4) is integrally formed with a first wedge-shaped protrusion (401). The fixed seat (3) and the transfer connecting seat (4) are connected by horizontal sliding cooperation through the first wedge-shaped protrusion (401) and the wedge-shaped groove (301).

4. A modular tool post for a CNC vertical lathe according to claim 3, characterized in that, The first wedge-shaped protrusion (401) is located on one side of the transfer connector (4) and slides against the inclined sidewall of one side of the wedge-shaped groove (301). The transfer connector (4) has a receiving groove (402) on the other side and also includes: The connecting block (5) has an insertion protrusion (501) and a second wedge-shaped protrusion (502) on its upper and lower sides respectively. The insertion protrusion (501) is used to insert into and slide in the receiving groove (402), and the connection between the connecting block (5) and the transfer connecting seat (4) is limited by the snap-fit ​​between the insertion protrusion (501) and the inner wall of the receiving groove (402). The second wedge-shaped protrusion (502) is used to slide against the inclined side wall on the other side of the wedge-shaped groove (301).

5. A modular tool post for a CNC vertical lathe according to claim 4, characterized in that, The receiving groove (402) and the connecting block (5) are in a clearance fit in the horizontal direction. The transfer connecting seat (4) is also provided with an intermediate groove (403). One side wall of the intermediate groove (403) is the first wedge-shaped protrusion (401). The other side of the intermediate groove (403) is connected to the receiving groove (402). The connecting block (5) is provided with abutting inclined surface (503) on the side away from the second wedge-shaped protrusion (502). It also includes a clamping block (6), which slides up and down in the intermediate groove (403). The clamping block (6) has a pressing slope (601) on one side near the receiving groove (402), and the other side is used to abut against the first wedge-shaped protrusion (401). After the clamping block (6) is configured to slide down, the pressing slope (601) slides against the pressed slope (503) to push the second wedge-shaped protrusion (502) against the inner wall of the wedge-shaped groove (301) on the corresponding side. Through the abutment of the clamping block (6) and the first wedge-shaped protrusion (401), the transfer connecting seat (4) is pushed in the opposite direction so that the first wedge-shaped protrusion (401) abuts against the other side wall of the wedge-shaped groove (301).

6. A modular tool post for a CNC vertical lathe according to claim 5, characterized in that... The transfer connector (4) has a bolt running vertically through it. The bolt extends into the intermediate groove (403) and is threadedly connected to the clamping block (6). It is used to drive the clamping block (6) to rise or fall after rotation.

7. A modular tool post for a CNC vertical lathe according to any one of claims 1 to 6, characterized in that, The connecting tool holder (2) has an outer circular turning tool groove (203) at its bottom. Bolt fixing holes are provided on both sides of the outer circular turning tool groove (203). The outer circular turning tool groove (203) is used to set an outer circular turning tool.

8. A modular tool post for a CNC vertical lathe according to any one of claims 1 to 6, characterized in that, The connecting tool holder (2) has an extension tool bar (204) extending downward from the bottom. The bottom of the extension tool bar (204) is provided with an inner hole tool groove (205), which is used to set an inner hole tool.

9. A modular tool post for a CNC vertical lathe according to any one of claims 1 to 6, characterized in that, The bottom of the connecting tool holder (2) extends downward with a tapered hole tool rod (206). A drill bit receiving groove (207) is provided inside the tapered hole tool rod (206) along the length direction. The drill bit receiving groove (207) is used to set the drill bit.

10. A modular tool post for a CNC vertical lathe according to claim 2, characterized in that, The connecting knife holder (2) and the transfer connecting seat (4) are fastened together by bolts.

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