Base and guide rail integrated linear motor module

Abstract

The invention discloses a base and guide rail integrated linear motor module, and belongs to the technical field of linear motor modules, and the base and guide rail integrated linear motor module comprises a device base, the front side and the rear side of the device base are provided with eight steel bar sliding grooves, and the steel bar sliding grooves are of a four-row arrangement structure; a steel bar sliding groove is formed in the upper side of the device base, a grinding steel bar is fixedly installed at the position, located in the steel bar sliding groove, of the device base, a motor magnet is fixedly installed in the middle of the upper side of the device base through a bolt, and a sliding table is arranged on the upper side of the device base. By arranging the sliding table structure and arranging a plurality of sliding block structures on the lower side of the sliding table, an operator can conveniently disassemble and replace the sliding table, good interchangeability is achieved, and later maintenance is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of linear motor modules, and more specifically, to a linear motor module with a base and a guide rail integrated therein. Background Art

[0002] The working principle of the linear motor module is based on the law of electromagnetic induction, and linear motion is achieved through the electromagnetic force between the stator and the mover. Specifically, the linear motor module consists of a stator and a mover. The stator is usually fixed to the bed or slide, while the mover is connected to the workbench or equipment. When an alternating current is passed through the stator winding, a magnetic field is generated in the mover core, which causes the mover to move in a straight line.

[0003] The Chinese patent discloses an integrated linear motor module (authorization announcement number CN112491236A), including a linear motor body, multiple sliding structures and a base, the linear motor body includes a slider, the base includes a bottom plate and a side plate, the side plate is fixedly connected to the bottom plate, the slider is slidably connected to the side plate through multiple sliding structures, and the multiple sliding structures are arranged in parallel and the plane formed is parallel to the bottom plate. The linear motor module realizes the sliding connection between the slider and the base through multiple sliding structures while increasing the stress points of the base, thereby increasing the bearing capacity of the linear motor module; the parallel arrangement of multiple sliding structures makes the height of the overall structure of the linear motor module lower, so that it has good stability and strong earthquake resistance, but the device integrates the slider part on the slide, and the slider is easily damaged after a period of use, but the maintenance cost of the special slider is high, and the slide rail of the device is a horizontal structure, and the slide rail is unevenly stressed after long-term use and is easily deformed and damaged. Summary of the invention

[0004] The object of the present invention is to provide a linear motor module with a base and a guide rail integrated therein to solve the problems raised in the above-mentioned background technology.

[0005] A linear motor module with integrated base and guide rail, comprising a device base, eight steel bar slide grooves are provided on the front and rear sides of the device base, the steel bar slide grooves are arranged in four rows, a grinding steel bar is fixedly installed on the device base at the position of the steel bar slide groove, a motor magnet is fixedly installed on the middle part of the upper side of the device base by bolts, a slide table is provided on the upper side of the device base, a motor coil is fixedly installed on the middle part of the lower side of the slide table by bolts, four sliders are fixedly installed on the front and rear sides of the lower end of the slide table, an encoder assembly is fixedly installed on the rear side of the slide table, and a photoelectric baffle is fixedly installed on the middle part of the front side of the slide table; An arc-shaped steel ball slide groove is provided on the inner cavity side of the slider, steel balls are arranged between the steel ball slide groove and the grinding steel bar, and three photoelectric components are arranged on the front side of the device base.

[0006] Furthermore, the device base is a "U"-shaped aluminum member, and four symmetrical steel bar slide grooves are provided on both sides of the front and rear upper ends of the device base, and the steel bar slide grooves are eight-shaped slotted structures.

[0007] By adopting the above technical solution, the grinding steel bars arranged in an eight-shaped shape can make the forces between the components more uniform and extend the service life of the device.

[0008] Furthermore, the encoder assembly includes an encoder bracket fixedly mounted on the rear side of the slide, and an encoder is fixedly mounted on the lower end of the encoder bracket.

[0009] By adopting the above technical solution, parameters such as position, moving speed and acceleration can be monitored in real time through the encoder.

[0010] Furthermore, a pair of module end covers are fixedly mounted on the front and rear ends of the device base, and four anti-collision blocks are fixedly mounted on the opposite side of the module end covers.

[0011] By adopting the above technical solution, the module end covers can seal the two ends of the device base, and the anti-collision blocks can provide buffering protection for the slide.

[0012] Furthermore, two photoelectric components are arranged on one side of the front side of the device base, and one photoelectric component is arranged on the other side of the front side of the device base. The photoelectric component includes a photoelectric sensor bracket fixedly installed on the front side of the device base, and a photoelectric sensor is fixedly installed on the upper side of the photoelectric sensor bracket.

[0013] By adopting the above technical solution, when the photoelectric baffle passes the upper side of the photoelectric sensor, the photoelectric sensor can sense the position of the photoelectric baffle. When the photoelectric baffle blocks the light of the photoelectric sensor, the control system controls and adjusts the whole according to the signal.

[0014] Furthermore, a magnetic scale is fixedly mounted on the middle portion of the rear side of the device base.

[0015] By adopting the above technical solution, the magnetic scale can accurately feedback the movement position of the slide, and has the characteristics of high reliability, high precision and long life.

[0016] Furthermore, a module upper cover is fixedly mounted on the upper side of the module end cover by bolts.

[0017] By adopting the above technical solution, the module cover can play a certain sealing and protective role inside, effectively preventing debris from entering the device.

[0018] Compared with the prior art, the advantages of the present invention are: 1. In the present invention, a structure with a grinding steel bar is provided, a two-point contact structure of steel balls and grinding steel bars is adopted, and a four-row arrangement structure is adopted, so that equal loads are applied in four directions, the rigidity is higher, the load capacity is higher, and steel is saved more at the same time.

[0019] 2. In the present invention, a slide table structure is provided, and a plurality of slider structures are provided on the lower side of the slide table, so that operators can conveniently disassemble and replace the slide table, which has good interchangeability and is convenient for later maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a disassembled diagram of the overall structure of the present invention; Figure 3 It is a structural cross-sectional view of the slide table of the present invention.

[0021] Explanation of the numbers in the figure: 1. Slide; 2. Module upper cover; 3. Module end cover; 4. Photoelectric sensor; 5. Photoelectric sensor bracket; 6. Slider; 7. Photoelectric baffle; 8. Device base; 9. Encoder; 10. Magnetic scale; 11. Motor magnet; 12. Motor coil; 13. Anti-collision block; 14. Encoder bracket; 15. Grinding steel bar; 16. Steel bar slide; 17. Steel ball; 18. Steel ball slide. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] like Figure 1 - Figure 3 As shown, the embodiment of the present invention provides: a device base 8, eight steel bar slide grooves 16 are provided on the front and rear sides of the device base 8, the steel bar slide grooves 16 are arranged in four rows, a grinding steel bar 15 is fixedly installed at the position of the steel bar slide groove 16 of the device base 8, a motor magnet 11 is fixedly installed by bolts in the middle of the upper side of the device base 8, a slide table 1 is provided on the upper side of the device base 8, a motor coil 12 is fixedly installed by bolts in the middle of the lower side of the slide table 1, four sliders 6 are fixedly installed on the front and rear sides of the lower end of the slide table 1, an encoder assembly is fixedly installed on the rear side of the slide table 1, and a photoelectric baffle 7 is fixedly installed in the middle of the front side of the slide table 1; An arc-shaped steel ball slide groove 18 is provided on the inner side of the slider 6, and a steel ball 17 is provided between the steel ball slide groove 18 and the grinding steel bar 15. Three photoelectric components are provided on the front side of the device base 8; The device base 8 is a "U"-shaped aluminum member. Four symmetrical steel bar slide grooves 16 are provided on both sides of the front and rear upper ends of the device base 8. The steel bar slide grooves 16 are eight-shaped slotted structures. The grinding steel bars 15 arranged in the eight-shaped shape can make the force between the components more uniform and extend the service life of the device. The encoder assembly is fixedly mounted on the encoder bracket 14 at the rear side of the slide 1, and an encoder 9 is fixedly mounted on the lower end of the encoder bracket 14. The encoder 9 can be used to monitor parameters such as position, moving speed and acceleration in real time; A pair of module end covers 3 are fixedly installed at the front and rear ends of the device base 8, and four anti-collision blocks 13 are fixedly installed on the opposite side of the module end covers 3. The module end covers 3 can seal the two ends of the device base 8, and the anti-collision blocks 13 can provide buffering protection for the slide 1; Two photoelectric components are arranged on one side of the front side of the device base 8, and one photoelectric component is arranged on the other side of the front side of the device base 8. The photoelectric components are fixedly mounted on the photoelectric sensor bracket 5 on the front side of the device base 8, and the photoelectric sensor 4 is fixedly mounted on the upper side of the photoelectric sensor bracket 5. When the photoelectric baffle 7 passes the upper side of the photoelectric sensor 4, the photoelectric sensor 4 can sense the position of the photoelectric baffle 7. When the photoelectric baffle 7 blocks the light of the photoelectric sensor 4, the control system controls and adjusts the whole according to this signal. A magnetic scale 10 is fixedly installed in the middle of the rear side of the device base 8. The magnetic scale 10 can accurately feedback the movement position of the slide 1 and has the characteristics of high reliability, high precision and long life. The upper side of the module end cover 3 is fixed with the module upper cover 2 by bolts. The module upper cover 2 can play a certain sealing and protective role on the inside, effectively preventing debris from entering the device.

[0024] Working principle of the present invention: the installer locks the base of the device base 8 on the high-precision marble workbench. The device base 8 is a "U"-shaped structure. Four steel bar slide grooves 16 are opened on the upper ends of both sides of the device base 8. Four grinding steel bars 15 are embedded in the steel bar slide grooves 16. The grinding steel bars 15 are bonded and assembled with the device base 8 by strong glue. The operator slides the four sliders 6 into the front and rear sides of the device base 8. The inner cavity side wall of the slider 6 is opened with a steel ball slide groove 18 corresponding to the grinding steel bar 15. Steel balls 17 are arranged between the grinding steel bar 15 and the steel ball slide groove 18. The inner cavity side wall of the slider 6 has a good parallelism with the upper side of the device base 8. The four sliders 6 and the grinding steel bars 15 are in contact with the eight grinding steel bars 15 by the steel balls 17 inside the slider 6, which minimizes friction, ensures smooth operation and has high rigidity, and the grinding steel bars 15 arranged in an eight-shaped shape can make the force between the components more uniform, so that the loads in four directions are equal, the rigidity is higher, and the load capacity is higher. At the same time, it saves more steel and reduces costs. To extend the service life of the device, the slide 1 is then connected to the four sliders 6 by bolts. After confirming that it is smooth, the motor coil 12 is fixedly installed on the bottom of the slide 1 by bolts, and then the encoder assembly is installed and fixed with bolts. The device base 8 is fixedly connected to the motor magnet 11 by bolts, and it is confirmed that there is an air gap between the motor coil 12 and the motor magnet 11. Ensure that the mechanical connection part between the slider 6 and the device base 8 is only the steel ball slide groove 18 and the grinding steel bar 15. Finally, the magnetic scale 10 is pasted to the middle of the rear side of the device base 8 at a specified height, and the two module end covers 3, four anti-collision blocks 13, three groups of photoelectric components, the module cover 2 and the device base 8 are fixedly connected with bolts to complete the assembly of the device. Since the slider 6 structure is a universal structure, the staff can easily disassemble and replace it, and it has good interchangeability and is convenient for later maintenance. The motor coil 12 and the motor magnet 11 are arranged in the inner cavity of the "U"-shaped device base 8. The inner cavity width of the device base 8 can be changed according to actual needs to suit the installation of various types of linear motors.

[0025] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only preferred examples of the present invention, and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A linear motor module with integrated base and guide rail, comprising a device base (8), characterized in that: The device base (8) is provided with eight steel bar slide grooves (16) on both sides of the front and rear, and the steel bar slide grooves (16) are arranged in four rows. A grinding steel bar (15) is fixedly installed on the device base (8) at the position of the steel bar slide groove (16). A motor magnet (11) is fixedly installed on the middle part of the upper side of the device base (8) by bolts. A slide table (1) is provided on the upper side of the device base (8), and a motor coil (12) is fixedly installed on the middle part of the lower side of the slide table (1) by bolts. Four sliders (6) are fixedly installed on both sides of the front and rear of the lower end of the slide table (1), an encoder assembly is fixedly installed on the rear side of the slide table (1), and a photoelectric baffle (7) is fixedly installed on the middle part of the front side of the slide table (1); An arc-shaped steel ball slide groove (18) is provided on the inner cavity side of the slider (6), a steel ball (17) is arranged between the steel ball slide groove (18) and the grinding steel bar (15), and three photoelectric components are arranged on the front side of the device base (8).

2. A linear motor module with integrated base and guide rail according to claim 1, characterized in that: The device base (8) is a "U"-shaped aluminum member, and four symmetrical steel bar slide grooves (16) are provided on both sides of the front and rear upper ends of the device base (8), and the steel bar slide grooves (16) are eight-shaped slotted structures.

3. The linear motor module with integrated base and guide rail according to claim 1, characterized in that: The encoder assembly comprises an encoder bracket (14) fixedly mounted on the rear side of the slide (1), and an encoder (9) is fixedly mounted on the lower end of the encoder bracket (14).

4. The linear motor module with integrated base and guide rail according to claim 1, characterized in that: A pair of module end covers (3) are fixedly mounted at the front and rear ends of the device base (8), and four anti-collision blocks (13) are fixedly mounted on the opposite side of the module end cover (3).

5. The linear motor module with integrated base and guide rail according to claim 1, characterized in that: Two photoelectric components are arranged on one side of the front side of the device base (8), and one photoelectric component is arranged on the other side of the front side of the device base (8). The photoelectric component comprises a photoelectric sensor bracket (5) fixedly mounted on the front side of the device base (8), and a photoelectric sensor (4) is fixedly mounted on the upper side of the photoelectric sensor bracket (5).

6. The linear motor module with integrated base and guide rail according to claim 1, characterized in that: A magnetic scale (10) is fixedly mounted on the middle portion of the rear side of the device base (8).

7. The linear motor module with integrated base and guide rail according to claim 1, characterized in that: The upper side of the module end cover (3) is fixedly mounted with a module upper cover (2) by means of bolts.

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