Groove type guide rail telescopic pressing and grabbing two-dimensional platform

Abstract

The utility model discloses a groove type guide rail telescopic pressing and grabbing two-dimensional platform, and belongs to the field of linear motor modules. Comprising a horizontally-arranged X-axis linear motor module and a longitudinally-arranged Z-axis linear motor module, the Z-axis linear motor module and the X-axis linear motor module are crossed, and the Z-axis linear motor module is connected to the X-axis linear motor module in a sliding mode. Compared with the prior art, the Z-axis linear motor module provided by the utility model utilizes the working principle of an extension spring, and when the Z-axis linear motor module is in a vertical application occasion, the Z-axis linear motor module can stably balance a load and avoid free falling impact during power failure; and secondly, the working performance is excellent, the structure is stable, precision is high, economical efficiency is good, and use and popularization are convenient.

Description

Technical Field

[0001] The utility model belongs to the field of linear motor modules, and particularly relates to a grooved guide rail telescopic pressing and grasping two-dimensional platform. Background Art

[0002] The telescopic and gripping two-dimensional platform is constructed by two linear motor modules in a vertical cross combination. One linear motor module is used as the X-axis, and the other linear motor module is used as the Z-axis. The base of the Z-axis is vertically fixed on the X-axis sliding plate and cross-combined together. Defined by the direction of movement, the left and right movement of the X-axis is telescopic, and the up and down movement of the Z-axis is gripping, thereby driving the workpiece to achieve two-dimensional plane coordinate positioning in the XZ direction. It is widely used in the contraction and lifting motion positioning system of equipment in various industries.

[0003] When the existing telescopic and gripping two-dimensional platform is used, the linear motor module of its Z axis does not have a self-locking function in vertical applications. Therefore, its use is limited (the load will fall freely when the motor is powered off). If the linear motor needs to be used in a vertical situation, a self-locking device or a gravity balance system must be added to prevent the load from hitting when the motor is powered off abnormally. Utility Model Content

[0004] In order to solve the above problems, the primary purpose of the utility model is to provide a grooved guide rail telescopic pressure-grasping two-dimensional platform. By utilizing the working principle of the tension spring, the Z-axis linear module can stably balance the load in vertical applications to avoid free fall impact when the power is off.

[0005] Another object of the utility model is to provide a grooved guide rail telescopic pressing and grasping two-dimensional platform, which has excellent working performance, stable structure, high precision, good economy, and is easy to use and promote.

[0006] To achieve the above purpose, the technical solution of the utility model is as follows:

[0007] The utility model provides a grooved guide rail telescopic pressure-grasping two-dimensional platform, comprising: a horizontally arranged X-axis linear motor module and a longitudinally arranged Z-axis linear motor module, wherein the Z-axis linear motor module crosses the X-axis linear motor module, and the Z-axis linear motor module is slidably connected to the X-axis linear motor module.

[0008] The X-axis linear motor module includes an X-axis base, an X-axis slide, an X-axis linear motor mover, an X-axis magnetic rail, and an X-axis groove sliding structure. The X-axis linear motor mover is integrally fixedly connected to the X-axis base, the X-axis magnetic rail is integrally fixedly connected to the X-axis slide, the X-axis linear motor mover is arranged opposite to the X-axis magnetic rail, and the X-axis base is slidably connected to the X-axis slide via the X-axis groove sliding structure.

[0009] The Z-axis linear motor module includes a Z-axis base, a Z-axis slide, a Z-axis linear motor mover, a Z-axis magnetic rail, and a Z-axis groove sliding structure. The Z-axis base is fixed on the X-axis slide, the Z-axis linear motor mover is integrally fixedly connected to the Z-axis base, the Z-axis magnetic rail is integrally fixedly connected to the Z-axis slide, the Z-axis linear motor mover is arranged opposite to the Z-axis magnetic rail, and the Z-axis base is slidably connected to the Z-axis slide via the Z-axis groove sliding structure.

[0010] A spring pull plate is installed at one end of the Z-axis base, and a spring fixing plate is provided at one end of the Z-axis slide away from the spring pull plate, and a spring is connected between the spring pull plate and the spring fixing plate. In the present application, one end of the spring is fixed on the Z-axis base, and the other end slides with the sliding table. By utilizing the working principle of spring stretching, the load is stably balanced in vertical applications to avoid the impact force generated by the free fall of the linear motor mover and the occurrence of collision.

[0011] In the present application, the X-axis linear motor mover and the X-axis magnetic rail can form a magnetic-dynamic structure. After the X-axis linear motor mover is energized, the internal coil generates a magnetic field, and the magnetic field pushes the X-axis magnetic rail to move linearly relative to the X-axis linear motor mover, thereby driving the X-axis slide to move linearly in the X-axis direction relative to the X-axis base through the X-axis groove sliding structure; similarly, the Z-axis linear motor mover and the Z-axis magnetic rail can form a magnetic-dynamic structure. After the Z-axis linear motor mover is energized, the internal coil generates a magnetic field, and the magnetic field pushes the Z-axis magnetic rail to move linearly relative to the Z-axis linear motor mover, thereby driving the Z-axis slide to move linearly in the Z-axis direction relative to the Z-axis base through the Z-axis groove sliding structure; through the cooperation of the X-axis linear motor module and the Z-axis linear motor module, the workpiece can be driven to extend and retract in the X-axis direction and to be pressed and grasped in the Z-axis direction, thereby realizing the two-dimensional plane coordinate positioning of the workpiece in the X and Z directions.

[0012] Furthermore, the X-axis groove sliding structure includes an X-axis sliding rail and an X-axis return device, an X-axis boss is provided on the X-axis base, an X-axis base groove is provided in the X-axis boss, the X-axis return device is embedded in the X-axis base groove, an X-axis slide groove is provided at the bottom of the X-axis slide, the X-axis sliding rail is embedded in the X-axis slide groove, and the X-axis sliding rail and the X-axis return device slide relative to each other. In the present application, the ball in the return device can roll on the rail, so that the moving X-axis slide slides relative to the X-axis base, and the embedded rail and return device can not only reduce the occupied volume of the module, but also protect the sliding mechanism and improve the stability of the structure.

[0013] Further, the Z-axis groove type sliding structure includes a Z-axis sliding rail and a Z-axis current returner. A Z-axis boss is provided on the Z-axis base, and a Z-axis base groove is provided inside the Z-axis boss. The Z-axis current returner is embedded in the Z-axis base groove. A Z-axis slide table groove is provided at the bottom of the Z-axis slide table. The Z-axis sliding rail is embedded in the Z-axis slide table groove, and the Z-axis sliding rail and the Z-axis current returner slide relative to each other. In the present application, the balls in the current returner can roll on the rail, enabling the moving Z-axis slide table to slide relative to the Z-axis base. The embedded rail and current returner can not only reduce the occupied volume of the module but also protect the sliding mechanism and improve the structural stability.

[0014] Further, the X-axis base and the X-axis linear motor mover are integrally potted, the X-axis slide table and the X-axis magnetic rail are integrally potted, the Z-axis base and the Z-axis linear motor mover are integrally potted, and the Z-axis slide table and the Z-axis magnetic rail are integrally potted. In the present application, the linear motor mover is a motor coil with an iron core structure, and is fixed in the base by potting, which can increase the structural stability; similarly, the magnetic rail is integrally potted with the slide table using a permanent magnet material, which can increase the structural stability between the slide table and the magnetic rail.

[0015] Further, the X-axis linear motor mover is located in the middle of the X-axis base, the X-axis bosses are located on both sides of the X-axis base, and a clamping groove is formed between the two X-axis bosses on both sides; the X-axis slide table includes two integrally formed table plates, and the two table plates are connected into a stepped structure. One of the table plates is provided with the X-axis magnetic rail and is located in the clamping groove; the other table plate is provided with a wrapping groove, and the wrapping groove wraps the X-axis boss on one side, and one of the X-axis slide table grooves is located on the side wall of the wrapping groove. Through the design of the above structure, the structural stability can be improved.

[0016] Further, two X-axis anti-collision rubbers are also provided on the X-axis base, an X-axis anti-collision block is provided on the X-axis slide table, the X-axis anti-collision block is located between the two X-axis anti-collision rubbers, and the three are in a straight line.

[0017] Further, an X-axis pressure plate is also provided outside the X-axis base groove, which can be used to encapsulate the X-axis current returner.

[0018] Further, the Z-axis base is of a "C" type structure, which can form a "C" type sliding cavity inside, the Z-axis linear motor mover is fixed in the sliding cavity, and the Z-axis slide table and the Z-axis magnetic rail slide relative to the sliding cavity.

[0019] Further, anti-collision blocks are provided at both the upper and lower ends of the Z-axis slide table, which hit the Z-axis base during movement to ensure the normal stroke of the module and prevent the magnetic rail from running out of the electromagnetic induction area.

[0020] Furthermore, a load adapter plate is provided at one end of the Z-axis slide, and the load can be installed through the load adapter plate.

[0021] Furthermore, a reading head bracket is installed on the side wall of the Z-axis boss, a reading head is installed on the reading head bracket, and a grating encoding ruler matched with the reading head is provided on the Z-axis slide. In the present application, the grating encoding ruler and the encoding reading head can provide feedback on the position of the sliding table through cooperation to ensure accuracy.

[0022] Furthermore, a plurality of photoelectric switches are installed on the side wall of the Z-axis boss, and a sensing sheet cooperating with the photoelectric switches is also arranged on the Z-axis slide, so that the position of the sliding platen can be fed back through the cooperation between the photoelectric switches and the sensing sheet.

[0023] The advantages of the present invention are as follows:

[0024] First, the grooved guide rail telescopic pressure-gripping two-dimensional platform of the present application arranges a spring on the Z-axis linear motor module and utilizes the working principle of spring stretching to stably balance the load in vertical applications, thereby avoiding the impact force generated by the free fall of the linear motor mover and causing collision;

[0025] Secondly, the module base uses a U-shaped profile base as the main body, the motor is directly integrated with glue, the groove slide is embedded in the inner side of the sliding table in the form of a blank by bonding, and the slide is integrated into the slide mover to form a whole, and then put into a high-precision grinder for grinding, so that the entire groove slide can achieve micron-level linear accuracy in the base. The slider assembly is integrated on the base in an embedded form and evenly distributed on both sides of the linear motor, with strong connection rigidity and high stability; when using the same thrust linear motor, the linear motor platform built by the groove slide guide base is smaller in size than the platform guided by the standard linear guide. When applied to the equipment, it occupies less space, is conducive to the miniaturization design of the equipment, and reduces the overall cost of the equipment. It has the advantages of excellent working performance, stable structure, high precision, and good economy, and can be easy to use and promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of this embodiment.

[0027] Figure 2 This is an exploded view of the X-axis linear motor module.

[0028] Figure 3 It is a cross-sectional view of the X-axis linear motor module.

[0029] Figure 4 It is a structural diagram of the Z-axis linear motor module.

[0030] Figure 5 This is an exploded view of the Z-axis linear motor module.

[0031] Figure 6 This is a cross-sectional view of the Z-axis linear motor module.

[0032] Figure 7 It is a structural diagram of the reflux device. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0034] To achieve the above purpose, the technical solution of the utility model is as follows:

[0035] See also Figure 1-7 As shown, this embodiment provides a grooved guide rail telescopic pressing and grasping two-dimensional platform, including: a horizontally arranged X-axis linear motor module 1, a longitudinally arranged Z-axis linear motor module 2, the Z-axis linear motor module 2 is cross-connected with the X-axis linear motor module 1, and the Z-axis linear motor module 2 is slidably connected to the X-axis linear motor module 1.

[0036] The X-axis linear motor module 1 includes an X-axis base 11, an X-axis slide 12, an X-axis linear motor mover 13, an X-axis magnetic rail 14, and an X-axis groove sliding structure 15. The X-axis linear motor mover 13 is integrally fixedly connected to the X-axis base 11, the X-axis magnetic rail 14 is integrally fixedly connected to the X-axis slide 12, the X-axis linear motor mover 13 is relatively arranged to the X-axis magnetic rail 14, and the X-axis base 11 is slidably connected to the X-axis slide 12 via the X-axis groove sliding structure 15.

[0037] The Z-axis linear motor module 2 includes a Z-axis base 21, a Z-axis slide 22, a Z-axis linear motor mover 23, a Z-axis magnetic rail 24, and a Z-axis groove sliding structure 25. The Z-axis base 21 is fixed on the X-axis slide 12, the Z-axis linear motor mover 23 is integrally fixedly connected to the Z-axis base 21, the Z-axis magnetic rail 24 is integrally fixedly connected to the Z-axis slide 22, the Z-axis linear motor mover 23 and the Z-axis magnetic rail 24 are arranged opposite to each other, and the Z-axis base 21 and the Z-axis slide 22 are slidably connected via the Z-axis groove sliding structure 25.

[0038] A spring pull plate 26 is installed at one end of the Z-axis base 21 , and a spring fixing plate 27 is provided at one end of the Z-axis slide 22 away from the spring pull plate 26 . A spring 28 is connected between the spring pull plate 26 and the spring fixing plate 27 .

[0039] In the present application, the X-axis linear motor mover 13 and the X-axis magnetic rail 14 can form a magnetic-dynamic structure. After the X-axis linear motor mover 13 is energized, the internal coil generates a magnetic field, and the magnetic field pushes the X-axis magnetic rail 14 to perform linear motion relative to the X-axis linear motor mover 13, thereby driving the X-axis slide 12 to perform linear motion in the X-axis direction relative to the X-axis base 11 through the X-axis groove sliding structure 15; similarly, the Z-axis linear motor mover 23 and the Z-axis magnetic rail 24 can form a magnetic-dynamic structure. After the Z-axis linear motor mover 23 is energized, the internal coil generates a magnetic field, and the magnetic field pushes the Z-axis magnetic rail 24 to perform linear motion relative to the Z-axis linear motor mover 23, thereby driving the Z-axis slide 22 to perform linear motion in the Z-axis direction relative to the Z-axis base 21 through the Z-axis groove sliding structure 25; through the cooperation of the X-axis linear motor module 1 and the Z-axis linear motor module 2, the workpiece can be driven to extend and retract in the X-axis direction and to be pressed and grasped in the Z-axis direction, thereby realizing the two-dimensional plane coordinate positioning of the workpiece in the X and Z directions.

[0040] In the present application, one end of the spring 28 is fixed on the Z-axis base, and the other end slides with the Z-axis slide. By utilizing the working principle of the spring 28 stretching, the load can be stably balanced in vertical applications to avoid the impact force generated by the free fall of the linear motor rotor and collision.

[0041] Furthermore, the X-axis groove sliding structure 15 includes an X-axis sliding rail 151 and an X-axis return device 152. An X-axis boss 111 is provided on the X-axis base 11, an X-axis base groove 112 is provided in the X-axis boss 111, and the X-axis return device 152 is embedded in the X-axis base groove 112. An X-axis slide groove 121 is provided at the bottom of the X-axis slide 12, and the X-axis sliding rail 151 is embedded in the X-axis slide groove 121, and the X-axis sliding rail 151 slides relative to the X-axis return device 152. In the present application, the ball in the return device can roll on the rail, so that the moving X-axis slide 12 slides relative to the X-axis base 11. The embedded rail and return device can not only reduce the occupied volume of the module, but also protect the sliding mechanism and improve the stability of the structure.

[0042] Furthermore, the Z-axis groove sliding structure 25 includes a Z-axis sliding rail 251 and a Z-axis return device 252. A Z-axis boss 211 is provided on the Z-axis base 21, a Z-axis base groove 212 is provided in the Z-axis boss 211, and the Z-axis return device 252 is embedded in the Z-axis base groove 212. A Z-axis slide groove 221 is provided at the bottom of the Z-axis slide 22, and the Z-axis sliding rail 251 is embedded in the Z-axis slide groove 221, and the Z-axis sliding rail 251 slides relative to the Z-axis return device 252. In the present application, the ball in the return device can roll on the rail, so that the moving Z-axis slide 22 slides relative to the Z-axis base 21. The embedded rail and return device can not only reduce the occupied volume of the module, but also protect the sliding mechanism and improve the stability of the structure.

[0043] It should be noted that the working principles of the X-axis groove sliding structure 15 and the Z-axis groove sliding structure 25 composed of the return device, the rail and the combination of the two in this application belong to the prior art. For the detailed implementation method, please refer to the existing patent with application number CN202221863043.9, which will not be described in detail in this application.

[0044] Furthermore, the X-axis base 11 and the X-axis linear motor mover 13 are integrally glued, the X-axis slide 12 and the X-axis magnetic track 14 are integrally glued, the Z-axis base 21 and the Z-axis linear motor mover 23 are integrally glued, and the Z-axis slide 22 and the Z-axis magnetic track 24 are integrally glued. In the present application, the linear motor mover is a motor coil of an iron core structure, which is fixed in the base by glue pouring, which can increase the stability of the structure; similarly, the magnetic track is made of permanent magnetic material and the slide is integrally glued, which can increase the structural stability between the slide and the magnetic track.

[0045] Furthermore, the X-axis linear motor mover 13 is located in the middle of the X-axis base 11, the X-axis boss 111 is located on both sides of the X-axis base 11, and a clamping groove 113 is formed between the X-axis bosses 111 on both sides; the X-axis slide 12 includes two integrally formed table plates, the two table plates are connected to form a stepped structure, one of which is equipped with an X-axis magnetic track 14 and is located in the clamping groove 113; the other table plate is provided with a wrapping groove 122, the wrapping groove 122 wraps around the X-axis boss 111 on one side, and the X-axis slide groove 121 on one side is located on the side wall of the wrapping groove 122. The above-mentioned structural design can improve the stability of the structure.

[0046] Furthermore, two X-axis anti-collision rubbers 16 are provided on the X-axis base 11, and an X-axis anti-collision block 17 is provided on the X-axis slide. The X-axis anti-collision block 17 is located between the two X-axis anti-collision rubbers 16, and the three are in a straight line.

[0047] Further, an X-axis pressing plate 18 is also arranged outside the X-axis base groove 112, which can be used to encapsulate the X-axis refluxer 152.

[0048] Further, the Z-axis base 21 is of a "C"-shaped structure, which can form a "C"-shaped sliding cavity inside. The Z-axis linear motor mover 23 is fixed in the sliding cavity, and the Z-axis slide 22 and the Z-axis magnetic rail 24 slide relative to the sliding cavity.

[0049] Further, anti-collision blocks 29 are arranged at both the upper and lower ends of the Z-axis slide 22, which hit the Z-axis base 21 during movement to ensure the normal stroke of the module and prevent the magnetic rail from running out of the electromagnetic induction area.

[0050] Further, a load transfer plate 210 is also arranged at one end of the Z-axis slide 22, and the installation of the load can be realized through the load transfer plate 210.

[0051] Further, a reading head bracket 220 is installed on the side wall of the Z-axis boss 211, a reading head 230 is installed on the reading head bracket 220, and a grating encoding scale 240 matched with the reading head 230 is arranged on the Z-axis slide 22. In this application, the grating encoding scale 240 and the encoding reading head 230 can feedback the position of the sliding platen through cooperation to ensure the accuracy.

[0052] Further, several photoelectric switches 250 are also installed on the side wall of the Z-axis boss 211, and an induction piece 260 matched with the photoelectric switches 250 is arranged on the Z-axis slide 22. The position of the Z-axis slide 22 is feedback through the cooperation of the photoelectric switches 250 and the induction piece 260.

[0053] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A grooved guide rail telescopic pressing and grasping two-dimensional platform, characterized in that: include: A horizontally arranged X-axis linear motor module and a longitudinally arranged Z-axis linear motor module, wherein the Z-axis linear motor module crosses the X-axis linear motor module, and the Z-axis linear motor module is slidably connected to the X-axis linear motor module; The X-axis linear motor module includes an X-axis base, an X-axis slide, an X-axis linear motor mover, an X-axis magnetic rail, and an X-axis groove sliding structure, wherein the X-axis linear motor mover is integrally fixedly connected to the X-axis base, the X-axis magnetic rail is integrally fixedly connected to the X-axis slide, the X-axis linear motor mover is arranged opposite to the X-axis magnetic rail, and the X-axis base is slidably connected to the X-axis slide via the X-axis groove sliding structure; The Z-axis linear motor module includes a Z-axis base, a Z-axis slide, a Z-axis linear motor mover, a Z-axis magnetic rail, and a Z-axis groove sliding structure. The Z-axis base is fixed on the X-axis slide, the Z-axis linear motor mover is integrally fixedly connected to the Z-axis base, the Z-axis magnetic rail is integrally fixedly connected to the Z-axis slide, the Z-axis linear motor mover is arranged opposite to the Z-axis magnetic rail, and the Z-axis base is slidably connected to the Z-axis slide through the Z-axis groove sliding structure. A spring pull plate is installed at one end of the Z-axis base, and a spring fixing plate is arranged at one end of the Z-axis slide away from the spring pull plate, and a spring is connected between the spring pull plate and the spring fixing plate.

2. A grooved guide rail telescopic pressing and grasping two-dimensional platform as claimed in claim 1, characterized in that: The X-axis groove sliding structure includes an X-axis sliding rail and an X-axis return device. An X-axis boss is provided on the X-axis base, an X-axis base groove is provided in the X-axis boss, the X-axis return device is embedded in the X-axis base groove, an X-axis slide groove is provided at the bottom of the X-axis slide, the X-axis sliding rail is embedded in the X-axis slide groove, and the X-axis sliding rail and the X-axis return device slide relatively.

3. A grooved guide rail telescopic pressing and grasping two-dimensional platform as claimed in claim 1, characterized in that: The Z-axis groove sliding structure includes a Z-axis sliding rail and a Z-axis return device. A Z-axis boss is provided on the Z-axis base, a Z-axis base groove is provided in the Z-axis boss, the Z-axis return device is embedded in the Z-axis base groove, a Z-axis slide groove is provided at the bottom of the Z-axis slide, the Z-axis sliding rail is embedded in the Z-axis slide groove, and the Z-axis sliding rail and the Z-axis return device slide relative to each other.

4. A grooved guide rail telescopic pressing and grasping two-dimensional platform as claimed in claim 1, characterized in that: The X-axis base and the X-axis linear motor mover are integrally glued, the X-axis slide and the X-axis magnetic rail are integrally glued, the Z-axis base and the Z-axis linear motor mover are integrally glued, and the Z-axis slide and the Z-axis magnetic rail are integrally glued.

5. A grooved guide rail telescopic pressing and grasping two-dimensional platform as claimed in claim 2, characterized in that: The X-axis linear motor mover is located in the middle of the X-axis base, the X-axis boss is located on both sides of the X-axis base, and a clamping groove is formed between the X-axis bosses on both sides; the X-axis slide includes two integrally formed table plates, the two table plates are connected to form a stepped structure, one of the table plates is equipped with the X-axis magnetic rail and is located in the clamping groove; the other table plate is provided with a wrapping groove, the wrapping groove wraps the X-axis boss on one side, and the X-axis slide groove on one side is located on the side wall of the wrapping groove.

6. A grooved guide rail telescopic pressing and grasping two-dimensional platform as claimed in claim 1, characterized in that: Two X-axis anti-collision rubbers are also arranged on the X-axis base, and an X-axis anti-collision block is arranged on the X-axis slide table. The X-axis anti-collision block is located between the two X-axis anti-collision rubbers, and the three are on the same straight line.

7. A grooved guide rail telescopic pressing and grasping two-dimensional platform as claimed in claim 1, characterized in that: The Z-axis base is of a "C"-shaped structure and can form a "C"-shaped sliding cavity inside. The Z-axis linear motor mover is fixed in the sliding cavity, and the Z-axis slide table and the Z-axis magnetic rail slide relative to the sliding cavity.

8. A grooved guide rail telescopic pressing and grasping two-dimensional platform as claimed in claim 1, characterized in that: A load transfer plate is also arranged at one end of the Z-axis slide table.

9. A grooved guide rail telescopic pressing and grasping two-dimensional platform as claimed in claim 3, characterized in that: A reading head bracket is installed on the side wall of the Z-axis boss, a reading head is installed on the reading head bracket, and a grating code ruler matched with the reading head is arranged on the Z-axis slide table.

10. A grooved guide rail telescopic pressing and grasping two-dimensional platform as claimed in claim 3, characterized in that: Several photoelectric switches are also installed on the side wall of the Z-axis boss, and an induction sheet matched with the photoelectric switch is also arranged on the Z-axis slide table.

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