Double-spindle numerical control lathe with two telescopic strokes

Abstract

The utility model discloses a double-spindle numerical control lathe with two sections of telescopic strokes, which comprises a base, and a mounting table with an inclined plane structure is mounted at the top of the base; the Z-axis first servo assembly is arranged on the outer side of the mounting table, the Z-axis first servo assembly comprises a mounting seat slidably mounted on the outer side of the mounting table and a first lead screw driving the mounting seat to move, one end of the mounting seat is fixedly connected with a Z-axis saddle, and the other end of the mounting seat is fixedly connected with a second lead screw; the utility model has the beneficial effects that the two sets of independent Z-axis servo assemblies are combined together in an up-and-down superposition manner to realize stroke two-section extension, and as the lead screw linear guide rail is not limited by lengthening due to long stroke, the stability is better, the precision is higher, and the working efficiency is improved. The problems that the linear precision is reduced and the bending degree is increased due to the fact that the length is increased are solved, the reasonable supporting distance is reserved, the lead screw has enough stability and precision, and the requirement for the long stroke is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to numerical control lathe technical field, concretely is two section telescopic stroke's double spindle numerical control lathe. BACKGROUND

[0002] The double spindle numerical control bed stroke is longer and occupies larger area in the market, and if the double spindle numerical control lathe needs long stroke, the ball screw and linear guide rail are lengthened as needed, and the linear precision is reduced only by lengthening the ball screw and linear guide rail under the condition of unchanged cross section, when the length of the required stroke is greater than the force that the middle section of the screw can support and support, the screw will sag and deform, and the deformation will cause the overall resonance of the screw when the screw is running at high speed, which will greatly reduce the machining stability and precision, and cannot adapt to high-precision machining occasions. SUMMARY

[0003] The utility model discloses a two section telescopic stroke's double spindle numerical control lathe to solve the problem in the background art.

[0004] To achieve the above object, the utility model provides the following technical scheme: a two section telescopic stroke's double spindle numerical control lathe, comprising:

[0005] The top of the base is provided with a mounting table with a slope structure;

[0006] The Z-axis first servo assembly is arranged on the outer side of the mounting table, and comprises a mounting seat slidably mounted on the outer side of the mounting table and a screw one for driving the movement of the mounting seat, and one end of the mounting seat is fixedly connected with a Z-axis saddle;

[0007] The Z-axis second servo assembly is arranged above the Z-axis first servo assembly, and comprises a sliding plate slidably mounted on the outer side of the Z-axis saddle and a screw two for driving the movement of the sliding plate, and the screw one and the screw two are arranged in parallel with each other, for realizing two section telescopic stroke and reducing the bending degree of the screw.

[0008] Preferably, the end of the base is provided with a driving spindle, the top of the mounting seat is provided with an X-axis servo sliding table, and the X-axis servo sliding table is arranged in parallel with the Z-axis saddle.

[0009] Preferably, the outer side of the mounting table is fixedly connected with a guide rail one in symmetry with respect to the screw one, the guide rail one is slidably connected with the mounting seat, the mounting seat is threadedly connected with the screw one, and the top of the mounting table is provided with a servo motor one for driving the screw one.

[0010] As preferred, the mounting table top and away from the guide rail one end is fixed with guide rail two, the guide rail one and guide rail two staggered arrangement, the Z axis saddle and guide rail two sliding connection.

[0011] As preferred, the top of the Z axis saddle is fixed with two guide rail three, the sliding plate and guide rail three sliding connection, the top of the sliding plate is provided with a driving vice main shaft.

[0012] As preferred, the middle of the Z axis saddle is fixed with servo motor two, the output end of the servo motor two is fixed with screw rod two and the screw rod two is threadedly connected with the sliding plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are that: two independent Z axis servo assemblies are combined together in the above and below superimposed mode to realize two section telescopic stroke, because the screw rod linear rail is not limited by the lengthening of long stroke, stability stability is good, precision is higher, the problem that lengthening leads to straight line precision reduction and bending degree increase is avoided, reasonable support spacing is reserved to make the screw rod have enough stability and precision, and the demand of long stroke is met. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the structure schematic view of the utility model;

[0015] Figure 2 It is the position structure schematic view of the screw rod two of the utility model;

[0016] Figure 3 It is the position structure schematic view of the guide rail two of the utility model;

[0017] Figure 4 It is the utility model explosion map.

[0018] In the drawing: 1, base; 2, driving main shaft; 3, mounting table; 4, guide rail one; 5, screw rod one; 6, servo motor one; 7, guide rail two; 8, Z axis saddle; 9, guide rail three; 10, sliding plate; 11, servo motor two; 12, screw rod two; 13, X axis servo sliding table; 14, mounting seat; 15, driving vice main shaft. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0020] Please refer to Figure 1 , 2As shown in Figures 3 and 4, this utility model provides a technical solution: a dual-spindle CNC lathe with a two-section telescopic stroke, comprising: a base 1, with a mounting platform 3 having an inclined structure mounted on the top of the base 1; a first Z-axis servo assembly mounted on the outside of the mounting platform 3, the first Z-axis servo assembly comprising a mounting seat 14 slidably mounted on the outside of the mounting platform 3 and a lead screw 5 driving the mounting seat 14 to move, the lead screw 5 being rotatably connected to the mounting platform 3 via a bearing, one end of the mounting seat 14 being fixedly connected to a Z-axis saddle 8, both the mounting seat 14 and the Z-axis saddle 8 being arranged parallel to the inclined surface of the mounting platform 3; a second Z-axis servo assembly positioned above the first Z-axis servo assembly, the second Z-axis servo assembly comprising a sliding plate 10 slidably mounted on the outside of the Z-axis saddle 8 and a lead screw 12 driving the sliding plate 10 to move, the lead screw 12 being rotatably connected to the Z-axis saddle 8 via a bearing, the lead screw 5 and the lead screw 12 being arranged vertically parallel to each other to achieve two-section telescopic stroke and reduce lead screw bending.

[0021] It should be noted that the first Z-axis servo assembly of this utility model drives the mounting base 14 to move linearly via the rotation of lead screw 5; one end of the mounting base 14 is fixedly connected to a Z-axis saddle, on which the second Z-axis servo assembly is mounted. Lead screw 12 is arranged parallel to lead screw 5 vertically and moves by driving the sliding plate 10; lead screw 12 ensures that it maintains a certain parallelism with lead screw 1 during operation, thereby reducing errors and instability caused by angular deviations; the two sets of lead screws realize the two-stage telescopic stroke of the Z-axis; the Z-axis can not only perform conventional reciprocating motion, but also achieve a larger stroke through a multi-stage structure, while maintaining overall rigidity and stability; in traditional designs, long lead screws are prone to bending under large loads, affecting accuracy and machining effect; by adopting a design with two lead screws arranged parallel vertically, the bending degree of the lead screws during operation can be effectively reduced, thereby improving the overall machining accuracy.

[0022] Please see Figure 1 , 4 As shown, a drive spindle 2 is installed at the end of the base 1, and an X-axis servo slide 13 is installed on the top of the mounting base 14. The X-axis servo slide 13 is arranged parallel to the Z-axis saddle 8.

[0023] It should be noted that the drive spindle 2 of this utility model is fixed to one end of the base 1, and the mounting seat 14 is driven to slide on the outside of the mounting table 3 by the lead screw 5, so that the mounting seat 14 can move along the axis of the drive spindle 2, and the X-axis servo slide 13 can move in a direction perpendicular to the axis of the drive spindle 2, thereby coordinating the movement and performing various processing operations.

[0024] Please see Figure 2 , 3The outer side of the mounting table 3 and symmetrically relative to the lead screw one 5 is fixedly connected with a guide rail one 4, the guide rail one 4 is slidably connected with a mounting base 14, the mounting base 14 is threadedly connected with the lead screw one 5, the top of the mounting table 3 is provided with a servo motor one 6 for driving the lead screw one 5, the top of the mounting table 3 and away from the guide rail one 4 is fixedly connected with a guide rail two 7, the guide rail one 4 and the guide rail two 7 are staggered, and the Z-axis saddle 8 is slidably connected with the guide rail two 7.

[0025] It should be noted that, when the Z-axis saddle 8 and the mounting base 14 are driven to move horizontally, the servo motor one 6 drives the mounting base 14 to slide on the outer side of the guide rail one 4 through the lead screw one 5, and the mounting base 14 drives the Z-axis saddle 8 to slide on the outer side of the guide rail three 9, so that the mounting base 14 drives the X-axis servo sliding table 13 to move along the axis direction of the driving main shaft 2.

[0026] Please refer to Figure 2 、 3 The top of the Z-axis saddle 8 is fixedly connected with two guide rails three 9, the sliding plate 10 is slidably connected with the guide rails three 9, the top of the sliding plate 10 is provided with a driving sub-shaft 15, the middle of the Z-axis saddle 8 is fixedly connected with a servo motor two 11, and the output end of the servo motor two 11 is fixedly connected with a lead screw two 12 and the lead screw two 12 is threadedly connected with the sliding plate 10.

[0027] It should be noted that, while the Z-axis saddle 8 slides on the outer side of the mounting table 3, the lead screw two 12 can be driven to rotate through the servo motor two 11, the sliding plate 10 is driven to slide on the outer side of the guide rail three 9 by the lead screw two 12, the driving sub-shaft 15 is concentric with the axis of the driving main shaft 2, and the sliding plate 10 drives the driving sub-shaft 15 to move along the axis direction of the driving main shaft 2, so as to realize machining, and the two servo assemblies are stacked up and down to divide the total stroke into two sections, so that the stability is stable, the precision is higher, and the long stroke is longer. The reasonable support spacing is retained, the lead screw has sufficient stability and precision, and the demand for long stroke is met.

[0028] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" and the like is the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

[0029] In addition, the terms "first", "second", "third", "fourth" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implying a number of the indicated technical features, so the features with "first", "second", "third", "fourth" can be explicitly or implicitly include at least one of the features.

[0030] In the present application, unless otherwise expressly specified and limited, the terms "mounting", "setting", "connecting", "fixing", "screwing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements, unless otherwise expressly limited, those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0031] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A two-section telescopic travel dual-spindle CNC lathe, characterized in that: The utility model relates to a kind of Z-axis servo mechanism, including: Base (1), the top of base (1) is equipped with the installation platform (3) with inclined plane structure; Z-axis first servo assembly, Z-axis first servo assembly is placed in the outer side of the installation platform (3), the Z-axis first servo assembly includes the outer side mounting seat (14) of installation platform (3) and drive mounting seat (14) movement screw rod one (5), one end of the mounting seat (14) is fixed with Z-axis saddle (8); Z-axis second servo assembly, Z-axis second servo assembly is placed above the Z-axis first servo assembly, the Z-axis second servo assembly includes sliding plate (10) slidingly installed in the outer side of Z-axis saddle (8) and drive sliding plate (10) movement screw rod two (12), the screw rod one (5) and screw rod two (12) are arranged in parallel, for realizing stroke two section telescopic, reduce the degree of screw rod bending.

2. The two-section telescopic stroke dual-spindle CNC lathe according to claim 1, characterized in that: The end of the base (1) is equipped with drive main shaft (2), the top of the mounting seat (14) is equipped with X-axis servo sliding table (13), the X-axis servo sliding table (13) is arranged in parallel with Z-axis saddle (8).

3. The two-section telescopic stroke dual-spindle CNC lathe according to claim 1, characterized in that: The outer side of the installation platform (3) and about screw rod one (5) symmetry fixed guide rail one (4) is connected, the guide rail one (4) is slidably connected with mounting seat (14), the mounting seat (14) is threadedly connected with screw rod one (5), the top of the installation platform (3) is equipped with servo motor one (6) for driving screw rod one (5).

4. The two-section telescopic stroke dual-spindle CNC lathe according to claim 1, characterized in that: The top of the installation platform (3) and one end away from guide rail one (4) is fixed guide rail two (7), the guide rail one (4) and guide rail two (7) are staggered, the Z-axis saddle (8) is slidably connected with guide rail two (7).

5. The two-section telescopic stroke dual-spindle CNC lathe according to claim 1, characterized in that: The top of the Z-axis saddle (8) is fixed with two guide rail three (9), the sliding plate (10) is slidably connected with guide rail three (9), the top of the sliding plate (10) is equipped with drive sub main shaft (15).

6. The two-section telescopic stroke dual-spindle CNC lathe according to claim 1, characterized in that: The middle of the Z-axis saddle (8) is fixed with servo motor two (11), the output end of the servo motor two (11) is fixed with screw rod two (12) and the screw rod two (12) is threadedly connected with sliding plate (10).

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