A multi-directional adaptive lathe tool post slide

Abstract

This invention relates to the field of lathe technology, and more particularly to a multi-directional adaptive lathe tool post slide, comprising: a drive unit with a first type of triangular groove on its connection surface with the guide rail assembly; a second type of triangular groove, parallel to the first type of triangular groove and disposed on the guide rail assembly; a first groove flat top surface and a second groove flat top surface recessed at the top of either the first or second type of triangular groove for Z-axis dynamic structure optimization and wear adaptive compensation; and a first groove redundant surface and a second groove redundant surface disposed on the sidewall of either the first or second type of triangular groove, extending away from the guide rail assembly for X-axis dynamic structure optimization and wear adaptive compensation. This invention enables automatic compensation when the slide is subjected to large loads and impact forces, preventing gaps between the slide and the lathe guide rail assembly, thereby achieving high positioning accuracy of the tool post and improving the machining quality of the lathe.

Description

Technical Field

[0001] This invention relates to the field of lathe technology, and more particularly to a multi-directional adaptive lathe tool post slide. Background Technology

[0002] Currently, the existing lathe industry widely uses hardened rail machine tools. The mainstream is triangular guide rails and rectangular guide rails composed of multiple mating surfaces. Therefore, the lathe tool post slide on the triangular guide rail is either a full triangular guide rail groove or a full rectangular guide rail groove.

[0003] Certainly, both full triangular and full rectangular guide rails have their advantages. For example, full triangular guide rails offer better guiding performance, meaning the sliding is easier, while full rectangular guide rails have higher load-bearing capacity, meaning stress is not applied to the inclined surface, thus preventing uneven stress distribution. However, both types of guide rails also have their disadvantages. The load-bearing capacity of full triangular guide rails is consistently lower than that of full rectangular guide rails, and wear exacerbates uneven stress distribution, leading to instability in the movement of the lathe tool post and directly affecting its machining accuracy.

[0004] For example, patent document with application number 201410697159.3 discloses a CNC lathe guide rail, but it does not improve the guide rail groove.

[0005] Therefore, how to combine the advantages of full triangular guide rail slides and full rectangular guide rail slides to design a more stable slide structure for lathe tool post slides is a technical problem that needs to be solved. Summary of the Invention

[0006] To address this, the present invention provides a multi-directional adaptive lathe tool post slide. The slide's flat top surface, utilizing a triangular-like groove, optimizes the lathe's dynamic structure in the Z-axis and provides adaptive wear compensation. The redundant surface of the triangular-like groove further optimizes the lathe's dynamic structure in the X-axis and provides adaptive wear compensation. The double triangular-like grooves enable rapid slide installation and automatic compensation under heavy loads and impacts. The slide's contact surface with the lathe guide rail assembly is gapless, thus achieving high positioning accuracy for the tool post and improving the lathe's machining quality.

[0007] To achieve the above objectives, the present invention proposes a multi-directional adaptive lathe tool post slide, comprising:

[0008] The drive unit is connected to the drive assembly of the lathe bed and is mounted on the guide rail assembly of the lathe bed. A first type of triangular groove is provided on the connection surface with the guide rail assembly.

[0009] The second type of triangular slide groove is parallel to the first type of triangular slide groove and is disposed on the guide rail assembly;

[0010] The tool post connecting part has a rectangular slide groove on the side wall for connecting the lathe tool post assembly, and a first type of triangular slide groove and a second type of triangular slide groove on the bottom surface;

[0011] The first type of triangular slide has a first slide flat top surface and a first slide redundant surface, and the second type of triangular slide has a second slide flat top surface and a second slide redundant surface;

[0012] The first and second sliding groove flat top surfaces are recessed at the top of the first or second type of triangular sliding groove and spaced apart from the guide rail assembly, for Z-axis dynamic structure optimization and wear adaptive compensation.

[0013] The first and second redundant surfaces of the slide groove are disposed on the sidewall of the first or second type of triangular slide groove, extending away from the guide rail group and spaced apart from the guide rail group, for the purpose of dynamic structural optimization and wear adaptive compensation in the X direction.

[0014] In the above solution, by combining the double-triangular slide and the rectangular slide on a single slide, the characteristics of slide movement in different directions and slide-driven tool post movement are combined, so that the tool post it carries has better movement smoothness and positioning accuracy, thereby improving the machining quality of the lathe.

[0015] Furthermore, both the first and second slide groove flat top surfaces are horizontally arranged, while both the first and second slide groove redundant surfaces are vertically arranged, for adaptive wear compensation in the Z and X directions.

[0016] Furthermore, the first and second chute flat top surfaces have a first functional relationship with the inclination of the sidewall of the first type of triangular chute and the width of the horizontal cross-section of the bottom of the chute, or the inclination of the sidewall of the second type of triangular chute and the width of the horizontal cross-section of the bottom of the chute;

[0017] The first and second redundant surfaces of the slide groove have a second functional relationship with the sidewall inclination and sidewall height of the first type of triangular slide groove, or the sidewall inclination and sidewall height of the second type of triangular slide groove;

[0018] The first functional relationship and the second functional relationship are adjusted by the load distribution coefficient of the sidewall, the excitation frequency of the groove, and the roughness of the contact surface of the guide rail assembly to optimize the dynamic structure.

[0019] Furthermore, the first type of triangular slide groove has a first reinforcing groove on both side walls, and the second type of triangular slide groove has a second reinforcing groove on both side walls, in order to constrain the displacement of the redundant surface of the first slide groove or the redundant surface of the second slide groove.

[0020] Furthermore, the first groove redundancy surface is located on the side of the first groove redundancy block group protruding from the bottom end of the first type of triangular groove, and the second groove redundancy surface is located on the side of the second groove redundancy block group protruding from the bottom end of the second type of triangular groove.

[0021] The first reinforcing groove is configured with a multi-bend V-shape, and the multiple bends of the multi-bend V-shape are respectively flush with the opposite surfaces between the redundant blocks of the first slide groove redundant block group, so as to constrain the displacement of the first slide groove redundant surface.

[0022] The second reinforcing groove is configured with multiple bends in a V-shape, and the multiple bends of the V-shape are respectively flush with the opposite surfaces between the redundant blocks of the second slide groove redundant block group, in order to constrain the displacement of the second slide groove redundant surface.

[0023] The above scheme realizes the multi-directional dynamic structure optimization design and automatic compensation of the slide groove based on the performance parameters of the slide groove contact surface, thereby achieving a substantial improvement in the positioning accuracy of the lathe tool post.

[0024] Furthermore, the driving unit includes a first driving unit and a second driving unit, wherein the horizontal cross-sectional area of ​​the first driving unit is smaller than the horizontal cross-sectional area of ​​the second driving unit.

[0025] Furthermore, a special-shaped reinforcing rib is provided on the bottom surface of the tool holder connection between the first type of triangular slide groove and the second type of triangular slide groove;

[0026] The irregular reinforcing ribs include, in sequence, horizontal reinforcing ribs, curved reinforcing ribs, and recessed reinforcing ribs;

[0027] The horizontal stiffeners and the curved stiffeners are used to reduce deformation caused by stress concentration.

[0028] The recessed reinforcing rib is connected to the guide rail assembly to transmit stress to the guide rail assembly.

[0029] In the above scheme, the load stress is dispersed and transmitted through irregularly shaped reinforcing ribs.

[0030] Furthermore, the tool holder connecting part is provided with a tool holder base connecting groove and a tool holder base connecting screw groove;

[0031] Both the tool holder base connecting slide groove and the tool holder base connecting lead screw groove are extended in the X direction.

[0032] Furthermore, two of the irregular reinforcing ribs are symmetrically arranged between the first type of triangular groove and the second type of triangular groove;

[0033] The lead screw mounting hole of the lead screw groove connected to the tool holder base is located on the upper side of the drive unit.

[0034] The first type of triangular groove and the second type of triangular groove are symmetrically arranged along the vertical symmetrical surface passing through the center of the curved reinforcing rib.

[0035] Furthermore, the drive unit, the first type of triangular slide groove, the second type of triangular slide groove, the tool holder connecting part, and the irregular reinforcing rib are integrally formed.

[0036] The above solution achieves an overall optimized design of the lathe tool post slide.

[0037] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0038] 1. The flat top surface of the triangular slide groove achieves dynamic structural optimization and wear adaptive compensation in the Z-axis of the lathe. The redundant surface of the triangular slide groove achieves dynamic structural optimization and wear adaptive compensation in the X-axis of the lathe. The double triangular slide groove enables rapid installation of the slide and automatic compensation under large loads and impacts. There is no gap between the slide and the lathe guide rail assembly, thus achieving high positioning accuracy of the tool holder and improving the machining quality of the lathe.

[0039] 2. By combining double-triangular slides and rectangular slides on a single slide, the characteristics of slide movement in different directions and slide-driven tool post movement are combined, giving the tool post it carries better movement smoothness and positioning accuracy, thus improving the machining quality of the lathe.

[0040] 3. The design and automatic compensation of the multi-directional dynamic structure of the slide groove, which combines the performance parameters of the slide groove contact surface, have been realized, thereby significantly improving the positioning accuracy of the lathe tool post.

[0041] 3. The load stress is dispersed and transmitted through the use of irregularly shaped reinforcing ribs.

[0042] 4. The overall optimized design of the lathe tool post slide has been achieved. Attached Figure Description

[0043] Figure 1 This is a structural schematic diagram of a lathe tool post slide from one perspective in an embodiment of the present invention;

[0044] Figure 2 This is a schematic diagram of the structure of another lathe tool post slide from one perspective in an embodiment of the present invention;

[0045] Figure 3 This is a structural schematic diagram of another lathe tool post slide from another perspective in an embodiment of the present invention;

[0046] Figure 4 This is the lathe tool post slide in the embodiment of the present invention. Figure 3 A partial structural diagram of part A in the middle;

[0047] Figure 5 This is a structural schematic diagram of another lathe tool post slide from the bottom view in an embodiment of the present invention;

[0048] Figure 6 This is a structural schematic diagram of the lathe from one perspective in an embodiment of the present invention;

[0049] Figure 7 The lathe in the embodiment of the present invention Figure 6 A partial structural diagram of part B;

[0050] Figure 8 This is a structural schematic diagram of the lathe from another perspective in an embodiment of the present invention.

[0051] Key components in the diagram: 1. Tool post connecting part; 11. Rectangular slide groove; 12. Tool post base connecting screw groove; 13. Mounting groove; 14. Screw seat;

[0052] 2. Drive unit; 21. First guide rail connecting unit; 211. First type of triangular slide groove; 2111. First slide groove flat top surface; 2112. First slide groove redundant surface; 2113. First slide groove redundant block group; 2114. First reinforcing groove; 22. First drive unit; 221. First through hole group; 222. First drive unit fixing block; 23. Second drive unit; 231. Second through hole group; 232. Second drive unit fixing block;

[0053] 3. Irregularly shaped reinforcing ribs; 31. Horizontal reinforcing ribs; 32. Bending reinforcing ribs; 33. Recessed reinforcing ribs;

[0054] 4. Second guide rail connection part; 41. Second type of triangular slide groove; 411. Flat top surface of second slide groove; 412. Redundant surface of second slide groove; 413. Redundant block group of second slide groove; 414. Second reinforcing groove;

[0055] 5. Lathe tool post assembly; 6. Guide rail lower slide; 71. First triangular hard rail; 72. Second triangular hard rail assembly; 721. Second main triangular hard rail; 722. Second auxiliary triangular hard rail; 8. Drive assembly; 9. Inverted L-shaped transmission component.

[0056] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0057] To make the objectives and advantages of the present invention clearer, the present invention will be further described below with reference to embodiments; it should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention.

[0058] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0059] It should be noted that in the description of this invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc., which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and is not intended to indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0060] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 invention according to the specific circumstances.

[0061] like Figures 1 to 8 As shown, this invention provides a multi-directional adaptive lathe tool post slide. The flat top surface of the triangular-like slide groove achieves dynamic structural optimization and wear adaptive compensation in the Z-axis of the lathe. The redundant surface of the triangular-like slide groove achieves dynamic structural optimization and wear adaptive compensation in the X-axis of the lathe. The double triangular-like slide grooves enable rapid installation of the slide and automatic compensation under large loads and impacts. No gaps are generated at the contact surface with the lathe guide rail assembly, thereby achieving high positioning accuracy for the tool post and improving the machining quality of the lathe.

[0062] like Figures 1 to 8 As shown, this embodiment proposes a multi-directional adaptive lathe tool post slide, including: a drive unit 2, which is connected to the drive assembly 8 of the lathe bed and is disposed on the guide rail assembly of the lathe bed, and a first type of triangular groove 211 is provided on the connection surface with the guide rail assembly;

[0063] The second type of triangular slide groove 41 is parallel to the first type of triangular slide groove 211 and is disposed on the guide rail assembly; the first type of triangular slide groove 211 has a first slide groove flat top surface 2111 and a first slide groove redundant surface 2112, and the second type of triangular slide groove 41 has a second slide groove flat top surface 411 and a second slide groove redundant surface 412.

[0064] The tool post connecting part 1 has a rectangular slide groove 11 on its side wall for connecting the lathe tool post assembly 5, and a first type of triangular slide groove 211 and a second type of triangular slide groove 41 on its bottom surface;

[0065] The first slide plate 2111 and the second slide plate 411 are recessed at the top of the first type of triangular slide plate 211 or the second type of triangular slide plate 41 and spaced apart from the guide rail group, for Z-axis dynamic structure optimization and wear adaptive compensation; the first slide plate redundant surface 2112 and the second slide plate redundant surface 412 are disposed on the side wall of the first type of triangular slide plate 211 or the second type of triangular slide plate 41, extending away from the guide rail group and spaced apart from the guide rail group, for X-axis dynamic structure optimization and wear adaptive compensation.

[0066] Understandably, the rectangular slide 11 can withstand large loads and impacts, and maintains high positioning accuracy and repeatability during lathe machining. The rectangular slide 11 undergoes special surface treatment, resulting in high wear resistance and corrosion resistance. Therefore, in the above solution, by combining the double-triangular slides and the rectangular slide onto a single slide, the characteristics of slide movement in different directions and slide-driven tool post movement are combined, giving the tool post it supports superior movement smoothness and positioning accuracy, thus improving the machining quality of the lathe.

[0067] It should be noted that the Z and X directions refer to the directions of the lathe coordinate system. Specifically, the Z direction is the axial direction of the lathe spindle, and also the extension direction of the second type of triangular groove 41 and the first type of triangular groove 211. The X direction is the direction perpendicular to the Z direction. Since the lathe tool post slide described in this embodiment only controls the Z and X direction movement of the lathe tool post, through its Z-direction movement on the guide rail assembly and the X-direction movement of the lathe tool post on it, although... Figure 1 The first slide plate 2111 and the second slide plate 411 shown are located at the top of the first type of triangular slide plate 211 or the second type of triangular slide plate 41 in the Y direction. Their ultimate purpose is to optimize the movement in the Z direction through compensation in the Y direction.

[0068] Furthermore, such as Figures 1 to 4As shown, the first slide groove flat top surface 2111 and the second slide groove flat top surface 411 are both horizontally arranged, and the first slide groove redundant surface 2112 and the second slide groove redundant surface 412 are both vertically arranged to perform wear adaptive fitting compensation in the Z and X directions.

[0069] Furthermore, such as Figures 1 to 4 As shown, the first chute flat top surface 2111 and the second chute flat top surface 411 have a first functional relationship with the sidewall inclination and bottom horizontal cross-sectional width of the first type of triangular chute 211, or the sidewall inclination and bottom horizontal cross-sectional width of the second type of triangular chute 41; the first chute redundant surface 2112 and the second chute redundant surface 412 have a second functional relationship with the sidewall inclination and sidewall height of the first type of triangular chute 211, or the sidewall inclination and sidewall height of the second type of triangular chute 41; the first functional relationship and the second functional relationship are adjusted by the load distribution coefficient of the sidewall, the chute excitation frequency and the roughness of the guide rail group contact surface, so as to optimize the dynamic structure.

[0070] It is understood that the guide rail assembly described in this embodiment includes a first triangular hardened rail 71, a second main triangular hardened rail 721, and a second auxiliary triangular hardened rail 722. These are all lathe hardened rails, which have the advantage of high rigidity. However, since the hardened rails are integrally connected to the machine tool bed, it is difficult to control the form and position tolerances, surface roughness requirements, aging treatment, and quenching treatment during machining, resulting in lower machining quality compared to linear guides. Furthermore, the service life of hardened rails is generally shorter than that of linear guides because hardened rails operate on sliding friction, experiencing greater frictional forces, leading to faster wear. Therefore, by considering the influencing factors of the dynamic characteristics of the contact surface between the hard rail and the slide, and designing its structural parameters, the first and second functional relationships ensure that the structural parameters of the first slide flat top surface 2111, the second slide flat top surface 411, the first slide redundant surface 2112, and the second slide redundant surface 412 have better dynamic performance. This prevents the second type of triangular slide 41 from being too high or too wide, resulting in insufficient load-bearing capacity and stability compared to the first type of triangular slide 211, and also prevents it from being too low or too narrow, thus failing to adequately adapt to wear conditions, i.e., the working conditions of the lathe. See also... Figure 7 The top and bottom sides of conventional machine tool triangular hard rails are sharp edges with good right angles to ensure the machining accuracy of the lathe. Therefore, the first slide rail flat top surface 2111, the second slide rail flat top surface 411, the first slide rail redundant surface 2112 and the second slide rail redundant surface 412 cannot be simply designed as parallel extensions of the rail surface to both sides. If they are simply set parallel to the rail, their edges will abut against the edges of the rail, resulting in stress concentration, accelerated wear, and is not conducive to the stability of the slide rail.

[0071] Specifically, based on the above considerations, establish as follows Figure 4The coordinate system shown is a rectangular coordinate system with the bottom of the outer side surface of the first type of triangular groove 211 or the second type of triangular groove 41 relative to the sidewall of the first groove redundancy surface 2112 or the second groove redundancy surface 412 as the origin. The horizontal axis is the X-axis and the vertical axis is the Y-axis. The first function relationship is:

[0072] a=f(b)=f0wαln(h0+b)

[0073] In the formula, a and b are the horizontal width and vertical height of the first chute flat top surface 2111 or the second chute flat top surface 411, respectively; f0 is the first adjustment coefficient, which is calculated based on the load distribution coefficient, the contact tightness coefficient, and the roughness of the guide rail contact surface; w is the horizontal cross-sectional width of the bottom of the first type of triangular chute 211 or the second type of triangular chute 41; α is the inclination of the sidewall of the first type of triangular chute 211 or the second type of triangular chute 41, calculated counterclockwise with the x-axis as the base; and h0 is the sidewall extension fitting height of the first type of triangular chute 2111 or the second type of triangular chute 411 (with the bottom of the first chute flat top surface 2111 or the second chute flat top surface 411 as the base). It can be understood that the horizontal width and vertical height of the first chute flat top surface 2111 or the second chute flat top surface 411 are roughly inversely proportional, which can ensure that the ratio of the horizontal width to the vertical height is relatively accurate and conforms to the motion performance characteristics f0 and the structural sliding performance w and h0 of the chute. Specifically, the horizontal width 'a' is directly proportional to the horizontal cross-sectional width 'w' of the groove bottom and the inclination 'α' of the sidewall. This aligns with the principle that a larger cross-sectional width 'w' results in a larger contact area, greater wear, and a greater need for redundant space. 'h0' reflects the cutoff condition of the concentrated force section, i.e., the height of the force that should be concentrated if the track were a full triangle. 'h0+b' reflects the sum of the increaseable area and the cutoff area; summation ensures simultaneous consideration, meaning that an increase in one area corresponds to a decrease in the other. The vertical height 'b' ranges from 7mm to 9mm, and the curve of the first functional relationship has a small amplitude of change, allowing the horizontal width 'a' to range from 20mm to 24mm. In summary, the first functional relationship can be used to finely adjust the horizontal width of the first slide groove flat top surface 2111 or the second slide groove flat top surface 411, making it more reasonable and better suited to adaptive adjustment and machine tool motion accuracy requirements.

[0074] The formula for calculating the first adjustment factor is as follows:

[0075] f0=p+ω+X+k1

[0076] In the formula, f0 is the first adjustment coefficient, p is the load distribution coefficient, ω is the groove excitation frequency, X is the roughness of the guide rail contact surface, and k1 is the first correction coefficient. It can be understood that the first adjustment coefficient comprehensively considers the combined influence of the load distribution coefficient, the groove excitation frequency, and the guide rail contact surface roughness on the groove. Since it is converted to a dimensionless value for calculation, the first correction coefficient k1 needs to be added to make it conform to the first functional relationship at the millimeter level. The first correction coefficient k1 is preferably 0.83 to 0.95. Specifically, the load distribution coefficient p is used to describe the load distribution on the groove. It is measured by multiple strain gauges at different positions of the first type of triangular groove 211 or the second type of triangular groove 41, with the unit being percentage. The load distribution coefficient is calculated by the change in the strain parameters. The groove excitation frequency ω is an important indicator of the dynamic characteristics of the machine tool, with the unit being Hertz. It is acquired by a laser vibrometer during the machine tool's operation and reflects the stiffness and damping of the groove during movement. The surface roughness X of the guide rail assembly is measured by scanning the guide rail surface with a surface roughness measuring instrument, and the unit is micrometers.

[0077] Accordingly, the second functional relationship is:

[0078] c = f(d) = f1hαln(d) - w

[0079] In the formula, c and d are the horizontal width and vertical height of the first chute redundant surface 2112 or the second chute redundant surface 412, respectively; f1 is the second adjustment coefficient; h is the side wall height of the first type of triangular chute 211 or the second type of triangular chute 41; α is the side wall inclination of the first type of triangular chute 211 or the second type of triangular chute 41, calculated counterclockwise with the x-axis as the reference; and w is the horizontal cross-sectional width of the bottom of the first type of triangular chute 211 or the second type of triangular chute 41, used to translate the calculated value from one side of the redundant surface to the origin of the coordinate system.

[0080] The formula for calculating the second adjustment factor is:

[0081] f1=p+ω+X+k2

[0082] In the formula, f1 is the second adjustment coefficient, p is the load distribution coefficient, ω is the excitation frequency of the slide groove, X is the roughness of the contact surface of the guide rail assembly, and k2 is the second correction coefficient, preferably 0.65 to 0.73, which conforms to the rule that the wear rate of the slide groove in the transverse direction is not as good as that in the longitudinal direction.

[0083] Further, see Figure 5 The first type of triangular slide groove 211 has a first reinforcing groove 2114 on both side walls, and the second type of triangular slide groove 41 has a second reinforcing groove 414 on both side walls, in order to constrain the displacement of the first slide groove redundant surface 2112 or the second slide groove redundant surface 412.

[0084] Further, see Figure 5 The first redundant surface 2112 of the slide groove is located on the side of the first redundant block group 2113 protruding from the bottom end of the first type of triangular slide groove 211, and the second redundant surface 412 of the slide groove is located on the side of the second redundant block group 413 protruding from the bottom end of the second type of triangular slide groove 41. The first reinforcing groove 2114 is configured with multiple bends in a V-shape, and the multiple bends of the V-shape are respectively flush with the relative surfaces between the redundant blocks of the first redundant block group 2113, so as to constrain the displacement of the first redundant surface 2112. The second reinforcing groove 414 is configured with multiple bends in a V-shape, and the multiple bends of the V-shape are respectively flush with the relative surfaces between the redundant blocks of the second redundant block group 413, so as to constrain the displacement of the second redundant surface 412.

[0085] See Figure 5 The opposite face refers to the side surfaces of two redundant blocks facing each other.

[0086] Specifically, see Figure 5 The first reinforcing groove 2114 and the second reinforcing groove 414 have three bends. The bends on both sides are horizontally arranged with the opposite surfaces of the first slide block group 2113 and the second slide block group 413. The bend in the middle is located in the middle of the overall slide plate.

[0087] More specifically, the shape fitting formula for the bend is:

[0088]

[0089] In the formula, x and y are the horizontal and vertical coordinates of the bottom surface of the first type of triangular groove 211 or the second type of triangular groove 41, respectively, and e is a natural constant. The values ​​of each constant are preferred values, which realizes a bend with a certain curvature, thereby reducing the friction of the bottom surface of the groove.

[0090] The above scheme realizes the multi-directional dynamic structure optimization design and automatic compensation of the slide groove based on the performance parameters of the slide groove contact surface, thereby achieving a substantial improvement in the positioning accuracy of the lathe tool post.

[0091] Furthermore, the driving unit 2 also includes a first driving unit 22 and a second driving unit 23, wherein the horizontal cross-sectional area of ​​the first driving unit 22 is smaller than the horizontal cross-sectional area of ​​the second driving unit 23. Therefore, see... Figure 8 This results in a larger horizontal cross-sectional area for the second drive unit 23 located near the drive motor, and a more stable connection with the motor drive.

[0092] Furthermore, the tool post connecting part 1, which is used to connect the lathe tool post assembly 5, has a first type of triangular slide groove 211 and a second type of triangular slide groove 41 on its bottom surface, and a special-shaped reinforcing rib 3 is provided on the bottom surface of the tool post connecting part 1 between the first type of triangular slide groove 211 and the second type of triangular slide groove 41.

[0093] The irregular reinforcing rib 3 includes, in sequence, a horizontal reinforcing rib 31, a curved reinforcing rib 32, and a recessed reinforcing rib 33; the horizontal reinforcing rib 31 and the curved reinforcing rib 32 are used to reduce deformation caused by stress concentration; the recessed reinforcing rib 33 is connected to the guide rail assembly to transmit stress to the guide rail assembly.

[0094] Understandably, this aligns with the principle that stress is more concentrated in the middle of the slide, making it more prone to bending deformation. In the above solution, the distribution and transmission of load stress are achieved through the use of irregularly shaped reinforcing ribs 3.

[0095] Further, see Figure 1 , 2 6. The tool holder connecting part 1 is provided with a rectangular sliding groove 11 and a tool holder base connecting screw groove 12; both the tool holder base connecting sliding groove 11 and the tool holder base connecting screw groove 12 are extended in the X direction.

[0096] Preferably, Figure 1 exist Figure 2 Based on the above, a lead screw seat 14 is added. The lead screw seat 14 is located on the outer side wall of the lead screw groove 12 connected to the tool post base away from the lead screw head, so as to perform stable assembly of the lead screw, thereby realizing stable transmission of the tool post connecting part 1 to the lathe tool post assembly 5. Figures 2 to 8 The lead screw seat 14 is replaced with a mounting groove 13, which is located on the bottom surface of the tool post base connected to the lead screw groove 12, so as to facilitate the removal of the lathe tool post slide from the lathe bed.

[0097] Understandably, see Figure 4 In this embodiment, the slide plate is connected to other parts of the machine tool through the through holes of the second through hole group 231, the first through hole group 221, the first slide groove redundant block group 2113, and the second slide groove redundant block group 413. Screws, rivets, and other connecting parts are used. Therefore, maintenance personnel can lift and disassemble the slide plate through the through holes and mounting groove 13 without damaging the guide rail group.

[0098] Further, see Figure 5 Two irregular reinforcing ribs 3 are symmetrically arranged between the first type of triangular groove 211 and the second type of triangular groove 41;

[0099] The lead screw mounting hole of the lead screw groove 12 of the tool holder base is located on the upper side of the drive unit 2;

[0100] The first type of triangular groove 211 and the second type of triangular groove 41 are symmetrically arranged along a vertical symmetrical plane passing through the center of the curved reinforcing rib 32. Therefore, the first type of triangular groove 211 and the second type of triangular groove 41 have completely identical shapes and structures, and their symmetrical arrangement achieves even stress distribution.

[0101] Further, see Figure 5 The drive unit 2, the first type of triangular slide groove 211, the second type of triangular slide groove 41, the tool holder connecting part 1, and the irregular reinforcing rib 3 are integrally formed. Therefore, the seams of the slide are reduced, and the integrity and strength of the slide are improved.

[0102] In the specific application of the lathe tool post slide described in this embodiment, such as Figures 1 to 5 As shown, a second type of triangular groove 41 is provided on the second guide rail connecting part 4, and a first type of triangular groove 211 is provided on the first guide rail connecting part 21. The bottom of the first drive part 22 has a first drive part fixing block 222, and the bottom of the second drive part 23 has a second drive part fixing block 231 to strengthen the structural strength of the drive part connecting the drive motor. The rectangular groove 11 connected to the tool post base of the lathe tool post assembly 5 is preferably a rectangular groove to achieve stable transmission.

[0103] In the specific application of the lathe tool post slide described in this embodiment, such as Figures 5 to 7 As shown, the second guide rail connecting part 4 is connected to the guide rail lower slider 6 that semi-encloses the guide rail to realize the stable movement of the second guide rail connecting part 4 on the second main triangular hard rail 721. The first guide rail connecting part 21 is connected to the inverted L-shaped transmission member 9 to drive the drive assembly 8 to move stably. The L-shaped transmission member 9 semi-encloses the second triangular hard rail assembly 72. Based on the stable installation of the first guide rail connecting part 21 and the second guide rail connecting part 4, the recessed reinforcing rib 33 only needs to contact the upper surface of the second secondary triangular hard rail 722 to achieve stable movement.

[0104] In this embodiment, the flat top surface of the triangular-like slide groove achieves dynamic structural optimization and wear adaptive compensation in the Z-axis of the lathe. The redundant surface of the triangular-like slide groove achieves dynamic structural optimization and wear adaptive compensation in the X-axis. The double-triangular slide groove enables rapid installation of the slide and automatic compensation under large loads and impacts. No gaps are generated between the slide and the lathe guide rail assembly, thus achieving high positioning accuracy for the tool holder and improving the machining quality of the lathe. By combining the double-triangular and rectangular slide grooves on a single slide, the characteristics of slide movement in different directions and slide-driven tool holder movement are combined, resulting in superior movement smoothness and positioning accuracy of the tool holder, further improving the machining quality of the lathe. The multi-directional dynamic structural optimization design and automatic compensation of the slide groove, incorporating the performance parameters of the slide groove contact surface, effectively improve the positioning accuracy of the lathe tool holder. The irregular reinforcing rib 3 disperses and transmits load stress. The overall optimized design of the lathe tool holder slide is achieved.

[0105] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of the present invention.

[0106] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A multi-directional adaptive lathe tool post slide, characterized in that, include: The drive unit (2) is connected to the drive assembly (8) of the lathe bed and is set on the guide rail assembly of the lathe bed. A first type of triangular groove (211) is provided on the connection surface with the guide rail assembly. The second type of triangular groove (41) is parallel to the first type of triangular groove (211) and is disposed on the guide rail assembly; The tool post connecting part (1) has a rectangular slide groove (11) on its side wall for connecting the lathe tool post assembly (5), and a first type of triangular slide groove (211) and a second type of triangular slide groove (41) on its bottom surface; The first type of triangular slide (211) has a first slide flat top surface (2111) and a first slide redundant surface (2112), and the second type of triangular slide (41) has a second slide flat top surface (411) and a second slide redundant surface (412). The first slide groove flat top surface (2111) is recessed at the top of the first type of triangular slide groove (211), and the second slide groove flat top surface (411) is recessed at the top of the second type of triangular slide groove (41). Both are spaced apart from the guide rail group to perform dynamic structure optimization and wear adaptive compensation in the Z direction. The first redundant surface (2112) of the slide groove is disposed on the side wall of the first type of triangular slide groove (211), and the second redundant surface (412) of the slide groove is disposed on the side wall of the second type of triangular slide groove (41). Both of them extend away from the guide rail group and are spaced apart from the guide rail group, so as to perform dynamic structure optimization and wear adaptive compensation in the X direction. The first chute flat top surface (2111) and the side wall inclination of the first type of triangular chute (211) and the bottom horizontal cross-sectional width of the chute have a first functional relationship; the second chute flat top surface (411) and the second type of triangular chute (41) have a first functional relationship; The sidewall inclination and sidewall height of the first redundant slide surface (2112) and the first type of triangular slide (211) have a second functional relationship, and the sidewall inclination and sidewall height of the second redundant slide surface (412) and the second type of triangular slide (41) have a second functional relationship. The first functional relationship and the second functional relationship are adjusted by the load distribution coefficient of the sidewall, the excitation frequency of the groove, and the roughness of the contact surface of the guide rail assembly to optimize the dynamic structure.

2. The multi-directional adaptive lathe tool post slide according to claim 1, characterized in that, The first slide groove flat top surface (2111) and the second slide groove flat top surface (411) are both horizontally arranged, and the first slide groove redundant surface (2112) and the second slide groove redundant surface (412) are both vertically arranged to perform wear adaptive fitting compensation in the Z and X directions.

3. The multi-directional adaptive lathe tool post slide according to claim 1, characterized in that, The first type of triangular chute (211) has a first reinforcing groove (2114) on both side walls to constrain the displacement of the redundant surface (2112) of the first chute; The second type of triangular chute (41) has a second reinforcing groove (414) on both side walls to constrain the displacement of the redundant surface (412) of the second chute.

4. The multi-directional adaptive lathe tool post slide according to claim 3, characterized in that, The first groove redundancy surface (2112) is located on the side of the first groove redundancy block group (2113) protruding from the bottom end of the first type of triangular groove (211), and the second groove redundancy surface (412) is located on the side of the second groove redundancy block group (413) protruding from the bottom end of the second type of triangular groove (41). The first reinforcing groove (2114) is configured with multiple bends in a V-shape, and the multiple bends of the V-shape are respectively flush with the opposite surfaces between the redundant blocks of the first chute redundant block group (2113) to constrain the displacement of the first chute redundant surface (2112). The second reinforcing groove (414) is configured with multiple bends in a V-shape. The multiple bends of the V-shape are flush with the relative surfaces between the redundant blocks of the second chute redundant block group (413) to constrain the displacement of the second chute redundant surface (412).

5. The multi-directional adaptive lathe tool post slide according to claim 1, characterized in that, The driving unit (2) includes a first driving unit (22) and a second driving unit (23), wherein the horizontal cross-sectional area of ​​the first driving unit (22) is smaller than the horizontal cross-sectional area of ​​the second driving unit (23).

6. The multi-directional adaptive lathe tool post slide according to any one of claims 1 to 5, characterized in that, A special-shaped reinforcing rib (3) is provided on the bottom surface of the tool holder connection part (1) between the first type of triangular slide groove (211) and the second type of triangular slide groove (41); The irregular reinforcing rib (3) includes, in sequence, a horizontal reinforcing rib (31), a curved reinforcing rib (32), and a recessed reinforcing rib (33); The horizontal stiffener (31) and the curved stiffener (32) are used to reduce the deformation caused by stress concentration; The recessed reinforcing rib (33) is connected to the guide rail assembly to transmit stress to the guide rail assembly.

7. The multi-directional adaptive lathe tool post slide according to claim 6, characterized in that, The tool holder connecting part (1) is provided with a tool holder base connecting groove (11) and a tool holder base connecting screw groove (12); Both the tool holder base connecting slide groove (11) and the tool holder base connecting screw groove (12) are extended in the X direction.

8. The multi-directional adaptive lathe tool post slide according to claim 7, characterized in that, Two of the irregular reinforcing ribs (3) are symmetrically arranged between the first type of triangular groove (211) and the second type of triangular groove (41); The lead screw mounting hole of the lead screw groove (12) of the tool holder base is located on the upper side of the drive unit (2); The first type of triangular groove (211) and the second type of triangular groove (41) are symmetrical along the vertical symmetrical surface passing through the center of the curved reinforcing rib (32).

9. The multi-directional adaptive lathe tool post slide according to claim 6, characterized in that, The drive unit (2), the first type of triangular slide groove (211), the second type of triangular slide groove (41), the tool holder connecting part (1), and the irregular reinforcing rib (3) are integrally formed.

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