Z-axis operation precision adjusting device

Abstract

The utility model discloses a Z-axis operation precision adjusting device which comprises an X-axis sliding table, the top of the X-axis sliding table is connected with a lead screw in a rotating mode, one end of the X-axis sliding table is provided with a servo motor, the output end of the servo motor is in transmission connection with the lead screw, the top of the X-axis sliding table is connected with a Z-axis sliding table in a sliding mode, and the output end of the Z-axis sliding table is in transmission connection with the lead screw. Mounting grooves are formed in the two ends of the bottom of the Z-axis sliding table, limiting grooves are formed in the two sides of each mounting groove, an adjusting seat is movably connected to the inner wall of each mounting groove, and limiting protrusions are arranged on the two sides of each adjusting seat. The utility model relates to the technical field of machine tool precision adjustment, and solves the problems that in the prior art, due to the influence of mechanical wear, assembly errors and external environmental factors (such as temperature change), a gap between a lead screw and a lead screw nut pair is too large, the stability of Z-axis operation precision is difficult to keep for a long time, the machining precision is reduced, and the machining cost is reduced. The product quality is influenced.

Description

Technical Field

[0001] This utility model relates to the field of machine tool precision adjustment technology, specifically a Z-axis running precision adjustment device. Background Technology

[0002] Machine tools are powerful and widely used processing equipment, and the machine tool slide, as an important component, plays a crucial role in achieving precise feed and various machining processes. The machine tool slide consists of a bed, slide plate, and lead screw, and can execute precise feed movements according to pre-set program instructions. It typically uses a motor as the power source, driving the lead screw to move the slide and precisely move the material. In existing technologies, due to mechanical wear, assembly errors, and external environmental factors (such as temperature changes), the clearance between the lead screw and lead screw nut pair can easily become too large, making it difficult to maintain stable Z-axis running accuracy over long periods, leading to decreased machining accuracy and affecting product quality. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this utility model provides a Z-axis running accuracy adjustment device, which solves the problem that in existing technologies, due to the influence of mechanical wear, assembly errors, and external environmental factors (such as temperature changes), the gap between the lead screw and the lead screw nut pair is easily too large, making it difficult to maintain the stability of Z-axis running accuracy for a long time, resulting in a decrease in machining accuracy and affecting product quality.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a Z-axis running accuracy adjustment device, comprising an X-axis slide, a lead screw rotatably connected to the top of the X-axis slide, a servo motor mounted at one end of the X-axis slide, the output end of the servo motor being drivenly connected to the lead screw, a Z-axis slide slidably connected to the top of the X-axis slide, mounting grooves at both ends of the bottom of the Z-axis slide, limit grooves on both sides of the mounting grooves, an adjusting seat movably connected to the inner wall of the mounting grooves, limit protrusions on both sides of the adjusting seat, the limit protrusions engaging with the limit grooves, a lead screw and nut pair fixedly connected to the inner wall of the adjusting seat, the lead screw and nut pair being threadedly connected to the lead screw, an adjusting screw rotatably connected to the Z-axis slide inside the limit grooves, the adjusting screw being threadedly connected to the limit protrusions, fixed seats equidistantly fixedly connected to both ends of the X-axis slide, a photoelectric setting device mounted on the side of the fixed seat closest to the Z-axis slide, the photoelectric setting device engaging with the Z-axis slide.

[0005] Preferably, both ends of the X-axis slide are fixedly connected to lead screw seats, and the lead screw seats are rotatably connected to the lead screw. The side of the X-axis slide closest to the servo motor is fixedly connected to a mounting base, and the servo motor is fixedly connected to the mounting base. The top of the X-axis slide is provided with guide rails on the side of the lead screw, and the bottom of the Z-axis slide is provided with sliding grooves on both sides, and the sliding grooves are slidably connected to the guide rails.

[0006] Preferably, a linear sensor with a grating ruler is installed on one side of the top of the X-axis slide, and the sensing end of the linear sensor with the grating ruler is fixedly connected to the Z-axis slide.

[0007] Preferably, the inner wall of the mounting groove is provided with limiting edges on both sides, and the limiting edges are slidably connected to the adjusting seat.

[0008] Preferably, the Z-axis slide is threaded with positioning bolts on both sides of the mounting groove, and the positioning bolts are connected in conjunction with the adjusting screw.

[0009] This utility model provides a Z-axis running accuracy adjustment device. It has the following beneficial effects: This Z-axis running accuracy adjustment device, through the cooperation of an X-axis slide, a lead screw, a servo motor, a Z-axis slide, a mounting groove, a limit groove, an adjusting seat, a lead screw and nut pair, an adjusting screw, a limit protrusion, a fixed seat, and a photoelectric setting device, measures the Z-axis running accuracy via the photoelectric setting device. When the gap between the lead screw and the lead screw and nut pair is too large, rotating the adjusting screw adjusts and stabilizes the position of the adjusting seat and the lead screw and nut pair, allowing the tightness between the lead screw and nut pair and the lead screw to be adjusted to the optimal state. This ensures the movement accuracy and stability of the Z-axis slide, guarantees the workpiece machining quality, and helps improve the convenience of machine tool maintenance and the machining accuracy of the workpiece.

[0010] Through the cooperation of the X-axis slide, lead screw, servo motor, Z-axis slide, lead screw seat, fixed seat, guide rail, and slide groove, the Z-axis slide is slidably connected to the guide rail at the top of the X-axis slide via the slide groove at the bottom. This provides support for the Z-axis slide and ensures its smooth movement on the X-axis slide. By controlling the servo motor to drive the lead screw to rotate smoothly, the Z-axis slide can be driven to move smoothly in the Z-axis direction, feeding the workpiece along the Z-axis. This improves the stability and safety of the Z-axis slide's movement. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the appearance of the present utility model;

[0012] Figure 2 for Figure 1 A schematic diagram of the X-axis slide, lead screw, and photoelectric setter.

[0013] Figure 3 This is a top view of the Z-axis slide, mounting groove, and adjusting seat in this utility model;

[0014] Figure 4 This is a schematic diagram showing the appearance of the adjusting seat, lead screw and nut pair, and limiting protrusion in this utility model;

[0015] Figure 5 for Figure 3 A magnified view of a portion of region A in the middle.

[0016] In the diagram: 1. X-axis slide; 2. Lead screw; 3. Servo motor; 4. Z-axis slide; 5. Mounting slot; 6. Limit slot; 7. Adjusting seat; 8. Lead screw and nut pair; 9. Adjusting screw; 10. Limit protrusion; 11. Fixed seat; 12. Photoelectric setter; 13. Lead screw seat; 14. Mounting seat; 15. Guide rail; 16. Slide groove; 17. Linear sensor for grating ruler; 18. Limit edge; 19. Positioning bolt. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] In the existing technology, due to mechanical wear, assembly errors and the influence of external environmental factors (such as temperature changes), the clearance between the lead screw and the lead screw nut pair is easily too large, which often makes it difficult to maintain the stability of the Z-axis running accuracy for a long time, resulting in a decrease in machining accuracy and affecting product quality.

[0019] In view of this, the present invention provides a Z-axis running accuracy adjustment device. Through the cooperation of an X-axis slide, a lead screw, a servo motor, a Z-axis slide, a mounting groove, a limit groove, an adjusting seat, a lead screw and nut pair, an adjusting screw, a limit protrusion, a fixed seat, and a photoelectric setting device, the photoelectric setting device measures the Z-axis running accuracy. When the gap between the lead screw and the lead screw and nut pair is too large, the adjusting screw is rotated to adjust and stabilize the positions of the adjusting seat and the lead screw and nut pair, thereby adjusting the tightness between the lead screw and nut pair and the lead screw to the optimal state. This ensures the movement accuracy and stability of the Z-axis slide, improves the convenience of equipment maintenance and repair, enhances the machining accuracy of the workpiece, and guarantees the workpiece machining quality.

[0020] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0021] Depend on Figure 1-5 It can be seen that the Z-axis running accuracy adjustment device includes an X-axis slide 1, a lead screw 2 rotatably connected to the top of the X-axis slide 1, a servo motor 3 installed at one end of the X-axis slide 1, the output end of the servo motor 3 being drivenly connected to the lead screw 2, a Z-axis slide 4 slidably connected to the top of the X-axis slide 1, mounting grooves 5 provided at both ends of the bottom of the Z-axis slide 4, limit grooves 6 provided on both sides of the mounting grooves 5, and an adjusting seat 7 movably connected to the inner wall of the mounting grooves 5, with limit protrusions 1 provided on both sides of the adjusting seat 7. 0. The limiting protrusion 10 is connected to the limiting groove 6. The inner wall of the adjusting seat 7 is fixedly connected to the lead screw nut pair 8, which is threadedly connected to the lead screw 2. The Z-axis slide 4 is rotatably connected to the adjusting screw 9 inside the limiting groove 6. The adjusting screw 9 is threadedly connected to the limiting protrusion 10. The two ends of the X-axis slide 1 are fixedly connected to the fixing seats 11 at equal distances. The fixed seat 11 is equipped with a photoelectric setting device 12 on the side of the fixing seat 11 near the Z-axis slide 4. The photoelectric setting device 12 is connected to the Z-axis slide 4.

[0022] In the specific implementation process, it is worth noting that the X-axis slide 1 is used to support the Z-axis slide 4 and to move the workpiece along the X-axis. Through the cooperation between the X-axis slide 1, the lead screw 2, and the servo motor 3, the servo motor 3 drives the lead screw 2. Through the cooperation between the Z-axis slide 4, the mounting groove 5, the limiting groove 6, the adjusting seat 7, the lead screw and nut assembly 8, the adjusting screw 9, and the limiting protrusions 10, the lead screw and nut assembly 8 is installed at both ends of the bottom of the Z-axis slide 4 via the adjusting seat 7, and the limiting protrusions 10 on both sides of the adjusting seat 7 are respectively engaged in the limiting grooves 6. By rotating the adjusting screw 9, the position of the adjusting seat 7 is adjusted and stabilized. Through the cooperation of the X-axis slide 1, the lead screw 2, the servo motor 3, the Z-axis slide 4, and the mounting groove 5... The X-axis slide 4 is moved along the Z-axis by the cooperation of the limit groove 6, adjusting seat 7, lead screw and nut pair 8, adjusting screw 9, and limiting protrusion 10. This is achieved by controlling the servo motor 3 to drive the lead screw 2 to rotate, thus moving the Z-axis slide 4 along the Z-axis under the influence of the lead screw and nut pair 8 and adjusting seat 7. This allows for Z-axis feed movement of the workpiece. When the gap between the lead screw 2 and the lead screw and nut pair 8 is too large, the adjusting screw 9 is rotated to adjust the position of the adjusting seat 7 and the lead screw and nut pair 8, adjusting the tightness between the lead screw and nut pair 8 and the lead screw 2 at both ends of the Z-axis slide 4. This ensures the moving accuracy and stability of the Z-axis slide 4, improving the machining accuracy of the workpiece. The X-axis slide 1, lead screw 2, servo motor 3, Z-axis slide 4, lead screw and nut pair 8, and fixed seat are all connected. The cooperation between the lead screw 11 and the photoelectric setter 12 is as follows: During equipment maintenance, the machine tool control system moves the Z-axis slide 4 to one end until it contacts the photoelectric setter 12. The photoelectric setter 12 emits a light signal, and the machine tool control system records the current position as the reference position for workpiece machining. The machine tool control system then controls the Z-axis slide 4 to move to the other end, observing the contact between the Z-axis slide 4 and the photoelectric setter 12 at the other end. If the photoelectric setter 12 at the other end emits a light signal, the Z-axis operation meets the machining accuracy requirements. If the photoelectric setter 12 at the other end does not emit a light signal, the gap between the lead screw 2 and the lead screw nut assembly 8 is too large, requiring accuracy adjustment to achieve the desired Z-axis running accuracy. The measurement improves the convenience and efficiency of equipment maintenance. Through the coordination between the X-axis slide 1, lead screw 2, servo motor 3, Z-axis slide 4, mounting groove 5, limit groove 6, adjusting seat 7, lead screw and nut pair 8, adjusting screw 9, limit protrusion 10, fixed seat 11, and photoelectric setting device 12, the photoelectric setting device 12 measures the Z-axis running accuracy. When the gap between lead screw 2 and lead screw and nut pair 8 is too large, the adjusting screw 9 is rotated to adjust and stabilize the positions of the adjusting seat 7 and lead screw and nut pair 8, ensuring the optimal tightness between them. This guarantees the movement accuracy and stability of the Z-axis slide 4, improving the convenience of equipment maintenance and the machining accuracy of the workpiece.To ensure workpiece machining quality, the specific models of servo motor 3 and photoelectric setter 12 are not limited, as long as they meet the usage requirements;

[0023] Furthermore, both ends of the X-axis slide 1 are fixedly connected to lead screw seats 13, which are rotatably connected to lead screw 2. The side of the X-axis slide 1 closest to the servo motor 3 is fixedly connected to the mounting base 14, which is fixedly connected to the servo motor 3. The top of the X-axis slide 1 is provided with guide rails 15 on the side of the lead screw 2. The bottom sides of the Z-axis slide 4 are provided with slide grooves 16, which are slidably connected to the guide rails 15.

[0024] In the specific implementation process, it is worth noting that, through the cooperation between the X-axis slide 1, lead screw 2, servo motor 3, lead screw seat 13, and mounting base 14, both ends of the lead screw 2 are fixed to the X-axis slide 1 via the lead screw seat 13, and one end of the lead screw 2 is connected to the output end of the servo motor 3 via a coupling. By controlling the servo motor 3, the smooth rotation of the lead screw 2 is ensured, thereby driving the Z-axis slide 4 to move smoothly in the Z-axis direction, realizing the feed motion of the workpiece along the Z-axis direction. Through the cooperation between the X-axis slide 1, Z-axis slide 4, guide rail 15, and slide groove 16, the Z-axis slide 4 is slidably connected to the guide rail 15 at the top of the X-axis slide 1 via the slide groove 16 at the bottom. The Z-axis slide 4 is supported and its smooth movement on the X-axis slide 1 is ensured. Through the cooperation between the X-axis slide 1, lead screw 2, servo motor 3, Z-axis slide 4, lead screw seat 13, mounting base 14, guide rail 15 and slide groove 16, the Z-axis slide 4 is slidably connected to the guide rail 15 at the top of the X-axis slide 1 via the slide groove 16 at the bottom, thus supporting the Z-axis slide 4 and ensuring its smooth movement on the X-axis slide 1. By controlling the servo motor 3, the lead screw 2 is driven to rotate smoothly, driving the Z-axis slide 4 to move smoothly in the Z-axis direction, realizing the feed motion of the workpiece along the Z-axis direction, and improving the movement stability and safety of the Z-axis slide 4.

[0025] Furthermore, a linear sensor 17 with a grating ruler is installed on one side of the top of the X-axis slide 1, and the sensing end of the linear sensor 17 with the grating ruler is fixedly connected to the Z-axis slide 4.

[0026] In the specific implementation process, it is worth noting that through the cooperation between the X-axis slide 1, the Z-axis slide 4, and the linear encoder 17, the sensing end of the linear encoder 17 is fixed to the Z-axis slide 4. When the Z-axis slide 4 moves, it drives the sensing end of the linear encoder 17 to move synchronously. The linear encoder 17 converts the moving distance and position of the Z-axis slide 4 into electrical signals and transmits them to the machine tool control system. The machine tool control system processes and analyzes the received electrical signals, thereby realizing real-time monitoring and control of the moving accuracy and position of the Z-axis slide 4, further improving the machining accuracy of the workpiece and the operational stability of the equipment. When the moving accuracy and position of the Z-axis slide 4 deviate, the machine tool control system can issue an alarm in time, prompting the operator to adjust the Z-axis running accuracy in time to avoid errors in workpiece machining and ensure product quality. The specific model of the linear encoder 17 is not limited, as long as it meets the usage requirements.

[0027] Furthermore, both sides of the inner wall of the mounting groove 5 are provided with limiting edges 18, which are slidably connected to the adjusting seat 7.

[0028] In the specific implementation process, it is worth noting that through the cooperation between the Z-axis slide 4, the mounting groove 5, the adjusting seat 7 and the limiting edge 18, the limiting edge 18 forms a limit on the adjusting seat 7, which prevents the adjusting seat 7 from shaking or shifting in the mounting groove 5, affecting the movement accuracy and stability of the Z-axis slide 4, further improving the stability of the adjusting seat 7 at the bottom of both ends of the Z-axis slide 4, and ensuring the smooth movement of the Z-axis slide 4;

[0029] Furthermore, the Z-axis slide 4 is threaded with positioning bolts 19 on both sides of the mounting groove 5, and the positioning bolts 19 are connected to the adjusting screws 9.

[0030] In the specific implementation process, it is worth noting that through the cooperation between the Z-axis slide 4, the adjusting screw 9 and the positioning bolt 19, after the adjusting screw 9 has completed the precision adjustment, the positioning bolt 19 is rotated to make the positioning bolt 19 abut against the adjusting screw 9, thereby fixing the position of the adjusting screw 9, ensuring the processing accuracy of the equipment and the quality of the workpiece, and preventing the adjusting screw 9 from loosening during long-term use, which would affect the fixing effect of the adjusting seat 7.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A Z-axis running precision adjusting device, comprising an X-axis sliding table (1), characterized in that: The top of the X-axis sliding table (1) is rotationally connected with a lead screw (2), one end of the X-axis sliding table (1) is provided with a servo motor (3), the output end of the servo motor (3) is drivingly connected with the lead screw (2), the top of the X-axis sliding table (1) is slidingly connected with a Z-axis sliding table (4), the bottom of the Z-axis sliding table (4) is provided with mounting grooves (5) at both ends, the two sides of the mounting grooves (5) are provided with limiting grooves (6), the inner wall of the mounting groove (5) is movably connected with an adjusting seat (7), the two sides of the adjusting seat (7) are provided with limiting protrusions (10), the limiting protrusions (10) are movably connected with the limiting grooves (6), the inner wall of the adjusting seat (7) is fixedly connected with a lead screw nut pair (8), the lead screw nut pair (8) is threadedly connected with the lead screw (2), the Z-axis sliding table (4) is rotationally connected with an adjusting screw rod (9) on the inner side of the limiting groove (6), the adjusting screw rod (9) is threadedly connected with the limiting protrusion (10), the two ends of the X-axis sliding table (1) are equidistantly fixedly connected with fixed seats (11), the fixed seat (11) is provided with an optical encoder (12) on the side close to the Z-axis sliding table (4), and the optical encoder (12) is movably connected with the Z-axis sliding table (4).

2. The Z-axis run accuracy adjustment device of claim 1, wherein: The two ends of the X-axis sliding table (1) are fixedly connected with lead screw seats (13), the lead screw seats (13) are rotationally connected with the lead screw (2), the side of the X-axis sliding table (1) close to the servo motor (3) is fixedly connected with a mounting seat (14), the servo motor (3) is fixedly connected with the mounting seat (14), the top of the X-axis sliding table (1) is provided with guide rails (15) on the side of the lead screw (2), the bottom of the Z-axis sliding table (4) is provided with sliding grooves (16) on both sides, and the sliding grooves (16) are slidingly connected with the guide rails (15).

3. The Z-axis runout adjustment device of claim 1, wherein: The top of the X-axis sliding table (1) is provided with a grating ruler linear sensor (17) on one side, and the sensing end of the grating ruler linear sensor (17) is fixedly connected with the Z-axis sliding table (4).

4. The Z-axis runout adjustment device of claim 1, wherein: The inner wall of the mounting groove (5) is provided with a limiting rail (18) on both sides, and the limiting rail (18) is slidingly connected with the adjusting seat (7).

5. The Z-axis runout adjustment device of claim 1, wherein: The Z-axis sliding table (4) is threadedly connected with a positioning bolt (19) on both sides of the mounting groove (5), and the positioning bolt (19) is movably connected with the adjusting screw rod (9).

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