Linear module

Abstract

The utility model relates to the technical field of mechanical equipment, and provides a linear module which comprises an inner sliding table, an outer sliding table, a cover body and a first driving assembly, the inner sliding table and the outer sliding table are arranged on the two sides of the cover body correspondingly, and the outer sliding table is suspended between the outer sliding table and the inner sliding table in a magnetic mode; and the first driving assembly drives the inner sliding table to slide so as to drive the outer sliding table to slide along the cover body. On the basis, maintenance is convenient, the maintenance cost is reduced, and quick response can be achieved.

Description

Technical Field

[0001] The present application relates to the field of mechanical equipment, and in particular to a linear module. Background Art

[0002] In the existing linear module design, the motion transmission between the inner and outer slides mainly relies on a mechanical connection mechanism to drive the outer slide to move along a preset linear trajectory. Although this mechanical connection can provide stable and reliable motion control in most application scenarios, it still has some shortcomings: the mechanical connection mechanism contains multiple moving parts, which are easily worn or damaged during frequent movement, and the mechanical connection structure is complex and has high maintenance costs; the mechanical connection may limit the response speed of the system due to reasons such as a long transmission chain and limited transmission efficiency, which may cause the outer slide to be unable to quickly reach the target position or maintain a stable motion state during high-speed movement or frequent starts and stops.

[0003] Therefore, the present application studies a linear module that facilitates maintenance, reduces maintenance costs, and enables rapid response. Utility Model Content

[0004] In order to facilitate maintenance, reduce maintenance costs, and enable quick response, the present application provides a linear module.

[0005] The linear module provided in this application adopts the following technical solution:

[0006] A linear module comprises an inner slide, an outer slide, a cover body and a first drive component, wherein the inner slide and the outer slide are respectively arranged on both sides of the cover body, the outer slide is suspended between the inner slide by a magnetic method, and the inner slide is driven to slide by the first drive component to drive the outer slide to slide along the cover body.

[0007] By adopting the above technical solution, the suspension of the outer slide relative to the inner slide is achieved by magnetic means. This design reduces the wear and resistance caused by traditional sliding or rolling friction, improves the operating accuracy and life of the system. The inner slide and the outer slide are independent of each other, which facilitates maintenance and reduces maintenance costs. They can also respond quickly to drive the outer slide to move.

[0008] Optionally, magnets are provided on the inner slide and the outer slide facing the cover body, and are arranged in one-to-one correspondence, and the magnetic poles facing the cover body are opposite.

[0009] By adopting the above technical solution, the inner slide and the outer slide are attracted to each other and approach each other, and power transmission can be achieved through the magnetic force of the magnet without mechanical connection between the inner slide and the outer slide, and the outer slide is pulled in the air to move when the inner slide moves in a straight line.

[0010] Optionally, the outer slide is provided with a screw hole, the screw hole is connected with a ball screw, the cover body is provided with a guide groove, the ball screw moves in the guide groove, and a gap is left between the outer slide and the cover body.

[0011] By adopting the above technical solution, the friction between the outer slide and the cover body is avoided, so that the outer slide can move more smoothly and the wear of the components is better avoided.

[0012] Optionally, it further includes a shell, a sealing groove is opened in the shell, a sealing ring is arranged in the sealing groove, and the cover body is covered on the shell and abuts against the sealing ring.

[0013] Optionally, a wire passing hole is provided on the shell, a sealing socket is installed in the wire passing hole, the sealing socket is electrically connected to the first driving component, and a waterproof plug is inserted into the sealing socket.

[0014] Optionally, the first driving component includes a ball screw and a driving motor, the ball screw is rotatably connected to the inside of the shell, the inner slide is screwed to the ball screw, and the driving motor drives the ball screw to rotate, thereby driving the inner slide to move along the ball screw.

[0015] Optionally, it also includes a first bearing seat and a second bearing seat, the first bearing seat is arranged in the shell, an angular contact ball bearing is installed in the first bearing seat, and one end of the ball screw is installed in the angular contact ball bearing; the second bearing seat is arranged in the shell, a deep groove ball bearing is installed in the second bearing seat, and the other end of the ball screw is installed in the deep groove ball bearing.

[0016] Optionally, it also includes a nut seat and a screw nut, the screw nut is installed in the nut seat, the inner slide is installed on the nut seat, and the screw nut is threadedly connected to the ball screw.

[0017] Optionally, it also includes multiple limit switches and a metal sensor sheet installed on the side of the inner slide away from the cover body, and the limit switches are installed on the shell at intervals. When the inner slide slides to the corresponding limit switch, the limit switch senses the metal sensor sheet and sends a signal, and the inner slide stops moving.

[0018] Optionally, it also includes an air valve, a pressure relief valve, and a pressure gauge. The air valve, the pressure relief valve, and the pressure gauge are all installed on the shell, and sealing gaskets are installed at the connections with the shell.

[0019] In summary, the present application includes at least one of the following beneficial technical effects:

[0020] 1. The outer sliding table is suspended relative to the inner sliding table magnetically. This design reduces the wear and resistance caused by traditional sliding or rolling friction, improves the operation accuracy and lifespan of the system. The inner sliding table and the outer sliding table are independent of each other, which is convenient for maintenance, reduces maintenance costs, and can respond quickly to drive the outer sliding table to move;

[0021] 2. The inner sliding table and the outer sliding table are attracted and close to each other, and power transmission can be achieved through the magnetic force of the magnet without mechanical connection between the inner sliding table and the outer sliding table. When the inner sliding table moves linearly, it can remotely drive the outer sliding table to move;

[0022] 3. It avoids the friction between the outer sliding table and the cover body, enables the outer sliding table to move more smoothly, and better avoids component wear. Description of the Drawings

[0023] Figure 1 is a schematic structural diagram of the linear module housing and the cover body when not matched in the embodiment of the present application;

[0024] Figure 2 is a schematic structural diagram showing the outer sliding table in the linear module of the embodiment of the present application;

[0025] Figure 3 is a schematic cross-sectional view of the linear module in the embodiment of the present application;

[0026] Figure 4 is a schematic cross-sectional view of the linear module from another perspective in the embodiment of the present application;

[0027] Figure 5 is Figure 1 an enlarged schematic view of part A in

[0028] Figure 6 is a schematic structural diagram of the linear module in the embodiment of the present application.

[0029] Reference Numerals: 1, housing; 2, inner sliding table; 3, outer sliding table; 4, cover body; 5, first drive assembly; 51, ball screw; 52, drive motor; 6, sealing groove; 7, sealing ring; 8, magnet; 9, groove; 10, screw hole; 11, ball screw; 12, guide groove; 13, wire passing hole; 14, sealing socket; 15, waterproof plug; 16, coupling; 17, first bearing seat; 18, angular contact ball bearing; 19, bearing baffle; 20, second bearing seat; 21, deep groove ball bearing; 22, circlip; 23, locking nut; 24, nut seat; 25, screw nut; 26, guide block; 27, guide rail; 28, limit switch; 29, rubber limit block; 30, air valve; 31, pressure relief valve; 32, pressure gauge; 33, sealing washer. Detailed Embodiment

[0030] The following is combined with the attachedFigures 1-6 A further detailed description of the present application will be given.

[0031] An embodiment of the present application discloses a linear module. Refer to Figure 1 , the linear module includes a housing 1, an inner slide table 2, an outer slide table 3, a cover body 4, and a first driving component 5. In some embodiments, a sealing groove 6 is formed in the housing 1, the sealing groove 6 is formed around the inside of the housing 1, a sealing ring 7 is arranged in the sealing groove 6, the cover body 4 is covered on the housing 1 and abuts against the sealing ring 7, so that a sealed connection is formed between the cover body 4 and the housing 1.

[0032] The inner slide table 2 and the outer slide table 3 are respectively arranged on both sides of the cover body 4. The outer slide table 3 is suspended relative to the inner slide table 2 in a magnetic manner, and the inner slide table 2 is driven to slide by the first driving component 5 to drive the outer slide table 3 to slide along the cover body 4. The suspension of the outer slide table 3 relative to the inner slide table 2 is realized in a magnetic manner. This design reduces the wear and resistance caused by traditional sliding or rolling friction, improves the operation precision and service life of the system. The inner slide table 2 and the outer slide table 3 are independent of each other, which is convenient for maintenance, reduces the maintenance cost, and can respond quickly to drive the outer slide table 3 to move.

[0033] Refer to Figure 1 and Figure 2 , in some embodiments, magnets 8 are arranged on one side of the inner slide table 2 and the outer slide table 3 facing the cover body 4, and are arranged in one-to-one correspondence, and the magnetic poles on the side facing the cover body 4 are opposite. In this embodiment, both the inner slide table 2 and the outer slide table 3 are provided with strip-shaped and circular magnets 8, and the strip-shaped and circular magnets 8 are arranged alternately, that is, they are arranged in the width direction of the inner slide table 2 or the outer slide table 3 as circular magnets 8, strip-shaped magnets 8, circular magnets 8, strip-shaped magnets 8, circular magnets 8. In other embodiments, different groups can be set according to needs. Two circular magnets 8 are arranged at intervals on the same side of the strip-shaped magnet 8. The magnetic poles of the magnets 8 facing the cover body 4 are N poles or S poles, and the magnetic poles of the magnets 8 at the corresponding positions of the inner slide table 2 and the outer slide table 3 are opposite, so that the N pole and the S pole attract each other, so that the inner slide table 2 can drive the outer slide table 3 to move.

[0034] In some embodiments, grooves 9 are formed in both the inner slide table 2 and the outer slide table 3, and the magnets 8 are arranged in the grooves 9. The grooves 9 are formed corresponding to the shapes of the magnets 8, so that the magnets 8 can be completely embedded in the grooves 9.

[0035] In some embodiments, the outer sliding table 3 is provided with screw holes 10, and ball screws 11 are screwed into the screw holes 10. In this embodiment, the ball screws 11 are arranged in an array, spaced between the magnets 8, and three are arranged in each row and each column. The cover body 4 is provided with guide grooves 12. The guide grooves 12 are spaced three along the length direction of the cover body 4 and correspond to the ball screws 11 in each column. The balls of the ball screws 11 move in the guide grooves 12, and a gap is left between the outer sliding table 3 and the cover body 4. The movement of the outer sliding table 3 can be better guided through the ball screws 11, and a gap can be left between the outer sliding table 3 and the cover body 4 through the ball screws 11, so as to avoid frictional damage between the outer sliding table 3 and the cover body 4. Moreover, by rotating the ball screws 11, the distance between the outer sliding table 3 and the cover body 4 can be changed, so as to better adapt to different working conditions.

[0036] Continue to refer to Figure 2 , in some embodiments, the housing 1 is provided with a wire passing hole 13, and a sealed socket 14 is installed in the wire passing hole 13. The sealed socket 14 is electrically connected to the first driving assembly 5 to provide signals and power for the first driving assembly 5. A waterproof plug 15 is inserted into the sealed socket 14, and the waterproof plug 15 can be plugged and unplugged from the sealed socket 14.

[0037] Refer to again Figure 1 , in some embodiments, the first driving assembly 5 includes a ball screw 51 and a driving motor 52. The driving motor 52 is arranged on one side inside the housing 1. The ball screw 51 is rotatably connected to the inside of the housing 1, and the inner sliding table 2 is screwed to the ball screw 51. In this embodiment, the output end of the driving motor 52 is connected with a coupling 16, and the other end of the coupling 16 is connected with the ball screw 51. The coupling 16 is used for transmitting power. The driving motor 52 drives the ball screw 51 to rotate, driving the inner sliding table 2 to move along the ball screw 51, thereby driving the outer sliding table 3 to move.

[0038] Refer to Figure 3 , in some embodiments, the linear module further includes a first bearing seat 17 and a second bearing seat 20. The first bearing seat 17 is arranged inside the housing 1, and an angular contact ball bearing 18 is installed in the first bearing seat 17. One end of the ball screw 51 is installed in the angular contact ball bearing 18. In this embodiment, a bearing baffle 19 is further connected to the side of the first bearing seat 17 facing away from the driving motor 52, which is used to fix the angular contact ball bearing 18 to prevent the angular contact ball bearing 18 from displacing. The second bearing seat 20 is arranged inside the housing 1, and a deep groove ball bearing 21 is installed in the second bearing seat 20. The other end of the ball screw 51 is installed in the deep groove ball bearing 21.

[0039] In this embodiment, a circlip 22 is provided at the end of the ball screw 51 on one side of the deep groove ball bearing 21. The circlip 22 abuts against the inner ring side of the deep groove ball bearing 21 to fix the ball screw 51 and prevent the ball screw 51 from displacing. A locking nut 23 is screwed at the end of the ball screw 51 on one side of the angular contact ball bearing 18. The locking nut 23 abuts against the inner ring side of the angular contact ball bearing 18 to fix the ball screw 51 and prevent the ball screw 51 from displacing.

[0040] Referring to Figure 4 , in some embodiments, the linear module further includes a nut seat 24 and a lead screw nut 25. The lead screw nut 25 is installed in the nut seat 24. In this embodiment, the lead screw nut 25 is fixed in the nut seat 24 by a pin. The inner slide table 2 is fixed above the nut seat 24. The lead screw nut 25 is screwed onto the ball screw 51. When the ball screw 51 rotates, the lead screw nut 25 moves along the ball screw 51, driving the nut seat 24 to move, and thus driving the inner slide table 2 to move.

[0041] Referring to Figure 5 , in this embodiment, guide blocks 26 are also screwed on both sides below the inner slide table 2. A guide rail 27 that cooperates with the guide blocks 26 is also provided in the housing 1. The guide blocks 26 are sleeved on the guide rail 27. When the inner slide table 2 moves, by moving the guide blocks 26 along the guide rail 27, the moving direction of the inner slide table 2 can be better guided.

[0042] Referring again to Figure 4 , in some embodiments, the linear module further includes a plurality of limit switches 28 and a metal induction sheet installed on the side of the inner slide table 2 facing away from the cover body 4. The limit switches 28 are installed at intervals on the housing 1. In this embodiment, three limit switches 28 are provided, which are respectively arranged at positions near both sides and in the middle in the length direction of the housing 1, specifically the starting position, the origin position, and the key position of the inner slide table 2; the metal induction sheet is installed at the bottom of the nut seat 24. When the inner slide table 2 slides to the corresponding limit switch 28, the limit switch 28 senses the metal induction sheet and emits a signal, and the inner slide table 2 stops moving, so that the moving position of the inner slide table 2 can be better limited.

[0043] In this embodiment, rubber limit blocks 29 are provided on the sides of the first bearing seat 17 and the second bearing seat 20 facing each other, to prevent the lead screw nut 25 from hitting the first bearing seat 17 and the second bearing seat 20 of the lead screw beyond the stroke, resulting in structural damage, which can better protect the equipment and reduce the later maintenance cost.

[0044] Referring to Figure 6 , in some embodiments, the linear module further includes an air valve 30, a pressure relief valve 31, and a pressure gauge 32. The air valve 30, the pressure relief valve 31, and the pressure gauge 32 are all installed on the housing 1, and sealing washers 33 are installed at the joints with the housing 1 (cooperating Figure 4) The air valve 30 is used to inject high-pressure gas into the housing 1; the pressure gauge 32 can be used to monitor the air pressure inside the housing 1 to determine whether the seal of the linear module is damaged; the pressure relief valve 31 is used to discharge the high-pressure gas. The sealing gasket 33 is made of rubber and is used to achieve the seal between the air valve 30, the pressure relief valve 31, the pressure gauge 32 and the housing 1.

[0045] After the linear module is assembled, the staff injects pressurized air into the housing 1 through the air valve 30 installed outside the housing 1 and keeps it, and observes the pressure gauge 32 to judge the sealing effect inside the housing 1. If the value of the pressure gauge 32 changes, it is judged that there is damage to the sealing structure inside the housing 1 and the sealing structure needs to be checked again. After confirming that the sealing structure is intact, the air inside the housing 1 is pumped out and dry air with a set pressure value is injected. Because the specific heat capacity value of the liquid is relatively high, when this linear module operates in the liquid, the temperature difference between the outside and the inside of the housing 1 is relatively large, preventing the moisture in the air inside the housing 1 from condensing and accumulating, and preventing the high moisture in the air inside the housing 1 from causing the internal mechanical structure to rust and increasing the maintenance cost.

[0046] The implementation principle of a linear module in an embodiment of this application is: the outer slide table 3 is suspended relative to the inner slide table 2 through a magnetic method. This design reduces the wear and resistance caused by traditional sliding or rolling friction, improves the operation accuracy and life of the system. The inner slide table 2 and the outer slide table 3 are independent of each other, which is convenient for maintenance, reduces the maintenance cost, and can respond quickly to drive the outer slide table 3 to move.

[0047] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A linear module, characterized in that: It includes an inner slide, an outer slide, a cover body and a first driving component. The inner slide and the outer slide are respectively arranged on both sides of the cover body. The outer slide is suspended between the inner slide by a magnetic method, and the inner slide is driven to slide by the first driving component to drive the outer slide to slide along the cover body.

2. The linear module according to claim 1, wherein: The inner slide and the outer slide are both provided with magnets on the side facing the cover body, and are arranged in one-to-one correspondence, and the magnetic poles facing the side facing the cover body are opposite.

3. The linear module according to claim 1, characterized in that: The outer slide is provided with a screw hole, the screw hole is connected with a ball screw, the cover is provided with a guide groove, the ball screw moves in the guide groove, and a gap is left between the outer slide and the cover.

4. A linear module according to claim 1, characterized in that: It also includes a shell, a sealing groove is opened in the shell, a sealing ring is arranged in the sealing groove, and the cover body is covered on the shell and abuts against the sealing ring.

5. A linear module according to claim 4, characterized in that: The shell body is provided with a wire-passing hole, the wire-passing hole is provided with a sealing socket, the sealing socket is electrically connected to the first driving component, and the sealing socket is plugged with a waterproof plug.

6. The linear module according to claim 4, characterized in that: The first driving assembly includes a ball screw and a driving motor. The ball screw is rotatably connected to the inside of the shell. The inner slide is screwed to the ball screw. The driving motor drives the ball screw to rotate and drives the inner slide to move along the ball screw.

7. A linear module according to claim 6, characterized in that: It also includes a first bearing seat and a second bearing seat, the first bearing seat is arranged in the shell, an angular contact ball bearing is installed in the first bearing seat, and one end of the ball screw is installed in the angular contact ball bearing; the second bearing seat is arranged in the shell, a deep groove ball bearing is installed in the second bearing seat, and the other end of the ball screw is installed in the deep groove ball bearing.

8. A linear module according to claim 6, wherein: It also includes a nut seat and a screw nut, the screw nut is installed in the nut seat, the inner slide is installed on the nut seat, and the screw nut is threadedly connected to the ball screw.

9. A linear module according to claim 4, wherein: It also includes a plurality of limit switches and a metal sensing sheet installed on the side of the inner slide away from the cover body. The limit switches are installed on the shell at intervals. When the inner slide slides to the corresponding limit switch, the limit switch senses the metal sensing sheet and sends a signal, and the inner slide stops moving.

10. A linear module according to claim 4, characterized in that: It also includes an air valve, a pressure relief valve, and an air pressure gauge. The air valve, the pressure relief valve, and the air pressure gauge are all installed on the shell, and sealing gaskets are installed at the connection with the shell.

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