A fully enclosed linear motor module

Abstract

The present invention relates to the field of enclosed motors, and specifically relates to a fully enclosed linear motor module. It includes a base, with a power source provided at one end of the base. The output end of the power source is fixedly connected to a sliding table, and the sliding table is slidably connected to the base. A sealing cover is fixedly connected to the upper end of the base and is formed with a stepped platform. A steel belt is located at the upper end of the sealing cover and is slidably connected to the base. It further includes: two extrusion rollers and two main air pipes, which are respectively fixedly connected to the two stepped platforms and are communicated with the input end of an external pump; two sealing mechanisms, which are respectively connected to the two stepped platforms, including two rubber concave platforms, two sealing strips, a plurality of rubber frames and a plurality of air sealing mechanisms. The plurality of air sealing mechanisms are respectively arranged at the lower ends of the plurality of rubber frames and perform negative pressure positioning on the steel belt; a plurality of positioning mechanisms, which are respectively arranged and connected to the plurality of air sealing mechanisms and perform auxiliary positioning on the sealing strips. This device realizes a fully enclosed design for the sealing cover through negative pressure sealing and mechanical locking, improving the sealing effect of the motor module.

Description

Technical Field

[0001] The present invention relates to the field of enclosed motors, and more particularly to a fully enclosed linear motor module. Background Art

[0002] In industrial automation production, as a key component for achieving precise linear motion, linear motor modules are widely used in many fields such as electronic manufacturing, semiconductor processing, and medical devices. However, traditional linear motor modules have many deficiencies in the sealing protection of the operating environment.

[0003] The common sealing structure of linear motor modules is simple. Usually, the magnetic attraction positioning method is used to position the dust-proof steel belt. However, as time goes by and with frequent adsorption and separation operations, the magnetic force of the magnetic components will gradually decay. Especially in high-temperature environments, the magnetic properties of magnetic materials degenerate faster. For example, in the high-temperature workshops of the metallurgical industry, after several months of continuous operation, the adsorption force of the magnetic components on the steel belt is significantly weakened, and it is impossible to ensure that the steel belt fits tightly, affecting the sealing performance of the module. In an environment with the presence of liquid, such as the automated production line in a food processing workshop, if the linear motor module is not well sealed, once the liquid enters the interior, it will corrode the metal components and damage the insulation performance of the motor, thus posing serious safety hazards.

[0004] In addition, the existing sealing methods often cannot take into account the movement flexibility of the module while ensuring the sealing performance. For example, although some sealing structures can block some impurities, they will increase the resistance of the slide table movement, resulting in increased motor energy consumption and reduced movement accuracy, and cannot meet the requirements of high-precision production.

[0005] With the continuous improvement of the production environment requirements in various industries and the emphasis on the operation stability and reliability of equipment, it is urgent to develop a fully enclosed linear motor module that can ensure good movement performance. Summary of the Invention

[0006] Based on this, in view of the problems in the prior art, it is necessary to provide a fully enclosed linear motor module.

[0007] To solve the problems in the prior art, the technical solution adopted by the present invention is as follows:

[0008] A fully enclosed linear motor module includes a base. A power source is provided at one end of the base. The output end of the power source is fixedly connected to a slide table. The slide table is slidably connected to the base. A sealing cover is fixedly connected to the upper end of the base. A steel belt is located at the upper end of the sealing cover and is slidably connected to the base. It further includes:

[0009] Step platforms are respectively formed on one side of the upper end of the sealing cover close to each other;

[0010] Two pressing rollers are arranged on the side of the slide table close to the steel belt and abut against the upper end of the steel belt;

[0011] Two main air pipes are respectively fixedly connected to two stepped platforms and communicated with the input ends of external pumps.

[0012] Two sealing mechanisms are respectively connected to two stepped platforms, including two rubber concave platforms, two sealing strips, a plurality of rubber frames and a plurality of air sealing mechanisms. The two rubber concave platforms are arranged on both sides of the main air pipe. The lower ends of the two sealing strips are respectively abutted against the two rubber concave platforms, and the upper ends are fixedly connected to the steel belt. The plurality of rubber frames are arranged at equal intervals in an array at the upper end of the main air pipe and are fixedly sealed to the corresponding stepped platforms. The plurality of air sealing mechanisms are respectively arranged at the lower ends of the plurality of rubber frames and perform negative pressure positioning on the steel belt.

[0013] A plurality of positioning mechanisms are respectively arranged and connected to the plurality of air sealing mechanisms and perform auxiliary positioning on the sealing strips.

[0014] Furthermore, an arc-shaped top platform is formed in the middle of the sliding table. The two sides of the arc-shaped top platform are respectively in sliding contact with the corresponding sealing strips, and the middle is in sliding contact with the steel belt. The arc-shaped top platform is in dynamic sealing connection with the sealing strips.

[0015] Furthermore, wheel seats, positioning seats, a plurality of extrusion springs and a plurality of extrusion pins are respectively arranged at the upper ends of the two extrusion rollers. The wheel seats are rotationally connected to the two ends of the extrusion rollers. The positioning seats are arranged above the wheel seats and fixedly connected to the sliding table. The plurality of extrusion pins are arranged at equal intervals in an array along the upper end of the wheel seat. The lower ends of the extrusion pins are fixedly connected to the wheel seats, and the upper ends are slidably connected to the positioning seats. The plurality of extrusion springs are respectively sleeved outside the plurality of extrusion pins. The upper ends of the extrusion springs are fixedly connected to the positioning seats, and the lower ends are fixedly connected to the wheel seats.

[0016] Furthermore, the air sealing mechanism further includes two air guide pipes, two auxiliary air pipes and two jacking pipes. The two jacking pipes are respectively slidably connected to the stepped platforms. A plurality of air holes are formed at equal angles in the circumferential direction at the upper ends of the jacking pipes. One ends of the two auxiliary air pipes are respectively communicated with the lower ends of the two jacking pipes. The other ends of the two auxiliary air pipes are respectively slidably connected to the two air guide pipes. The upper ends of the two air guide pipes are respectively communicated with the main air pipes.

[0017] Furthermore, the air sealing mechanism further includes two dust covers. The two dust covers are respectively coaxially arranged with the two jacking pipes and fixedly connected to the upper ends of the stepped platforms.

[0018] Furthermore, the air sealing mechanism further includes two downward pressing pin shafts, two first racks, two reversing gears and two second racks. The two downward pressing pin shafts are respectively slidably connected to the corresponding rubber concave platforms. The two first racks are respectively fixedly connected to the two downward pressing pin shafts. The two reversing gears are respectively rotatably arranged at the lower ends of the stepped platforms through tooth seats. The two reversing gears are respectively meshed with the two first racks. The two second racks are respectively meshed with the other sides of the two reversing gears. The two second racks are respectively fixedly connected to the two jacking pipes. Positioning grooves are respectively formed on both sides of the lower ends of the two first racks.

[0019] Furthermore, the air sealing mechanism also includes a downward push plate and a reset spring. The downward push plate is fixedly connected to the downward push pin shaft. The reset spring is coaxially sleeved on the outside of the downward push pin shaft. The upper end of the reset spring is fixedly connected to the rubber concave platform, and the lower end is fixedly connected to the downward push plate.

[0020] Furthermore, the positioning mechanism also includes a bearing seat, four tightening rods, four tightening supports, four tightening springs and four tightening slides. The bearing seat is fixedly connected to the inner wall of the sealing cover, two tightening slides are respectively arranged under each first rack, the tightening slide is fixedly connected to the upper end of the bearing seat, the four tightening supports are respectively fixedly connected to the four tightening slides, the four tightening rods are respectively slidably connected to the upper ends of the four tightening supports, the four tightening springs are respectively arranged on one side of the four tightening supports close to the first rack, the four tightening springs are respectively sleeved on the outside of the four tightening rods, one end of the tightening spring is fixedly connected to the tightening rod, and the other end is fixedly connected to the tightening support, and the end of the tightening rod close to the first rack is inserted into the corresponding positioning groove when the first rack moves downward.

[0021] Furthermore, the positioning mechanism also includes four locking screw sleeves, two bidirectional screws, two secondary pulleys and two main pulleys. The main pulley is rotatably arranged at the upper end of the bearing seat through a wheel seat. The two secondary pulleys are respectively rotatably connected to the two wheel seats and are connected to the main pulley through belts. The two bidirectional screws are respectively coaxially fixed to the two secondary pulleys. Two locking screw sleeves are respectively arranged at both ends of each bidirectional screw. The locking screw sleeves are threadedly connected to the bidirectional screw, and the locking screw sleeves are fixedly connected to the locking support.

[0022] Furthermore, the positioning mechanism also includes a motor, a power shaft, two first bevel teeth and two second bevel teeth. The motor is fixedly arranged at the upper end of the bearing seat, the power shaft is coaxially fixedly connected to the output end of the motor, the two first bevel teeth are coaxially fixedly connected to the power shaft, and the two second bevel teeth are respectively meshed with the two first bevel teeth and coaxially fixedly connected to the corresponding main pulley.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] Firstly, the device builds a fully enclosed operating environment through the coordinated action of a series of components such as the sealing cover, steel belt, sealing strip and air sealing mechanism. The main air pipe is connected to the external pump, and the steel belt is positioned by negative pressure. At the same time, the rubber concave platform and sealing strip are closely matched to effectively prevent the intrusion of dust, impurities and liquids, ensuring that the internal key components are protected from the influence of the external environment, which greatly improves the durability and reliability of the device.

[0025] Second: The dust cover in the air seal mechanism adopted by this device can block and concentrate the dust falling into the rubber frame, preventing the main air pipe from being blocked, facilitating the centralized treatment of dust during maintenance, reducing the maintenance cost and difficulty, and improving the maintainability of the equipment;

[0026] Third: Compared with the traditional method that only uses magnetic attraction for positioning, the positioning mechanism in this device mechanically positions the first rack by pressing against the insertion rod, combined with the negative pressure positioning of the air seal mechanism, which double-guarantees the stable positioning of the steel belt. At the same time, the design of the pressing pin shaft and the reset tension spring enables automatic reset after the sealing strip leaves the rubber concave platform, preparing for the next sealing action and ensuring the continuity and stability of the device operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is the three-dimensional structure schematic diagram of the embodiment;

[0028] Figure 2 is the truncated three-dimensional structure diagram of the embodiment;

[0029] Figure 3 is the exploded three-dimensional structure schematic diagram of the embodiment;

[0030] Figure 4 is Figure 3 the enlarged view of the structure at A in;

[0031] Figure 5 is Figure 3 the enlarged view of the structure at B in;

[0032] Figure 6 is the three-dimensional structure schematic diagram of the sealing mechanism and the positioning mechanism in the embodiment;

[0033] Figure 7 is the three-dimensional structure schematic diagram of the sealing mechanism and the positioning mechanism from another angle in the embodiment;

[0034] Figure 8 is Figure 7 the enlarged view of the structure at C in;

[0035] Figure 9 is the front view of the sealing mechanism in the embodiment;

[0036] Figure 10 is the front view semi-sectional view of the sealing mechanism in the embodiment;

[0037] Figure 11 is the three-dimensional semi-sectional view of the sealing mechanism in the embodiment;

[0038] Figure 12 is Figure 11 the enlarged view of the structure at D in.

[0039] The reference numerals in the drawings are:

[0040] 1. Base; 2. Power source; 4. Slide table; 5. Arc top table; 6. Extrusion roller; 7. Wheel seat; 8. Extrusion spring; 9. Extrusion pin; 10. Positioning seat; 11. Step table; 12. Sealing cover; 13. Steel belt; 14. Sealing strip; 15. Main air pipe; 16. Sealing mechanism; 17. Rubber concave platform; 18. Rubber frame; 19. Air sealing mechanism; 20. Air guide pipe; 21. Sub air pipe; 22. Jacking pipe; 23. Air hole; 24. Dust cover; 25. Pressing pin shaft; 26. Pressing push plate; 27. Reset tension spring; 28. First rack; 29. Positioning groove; 30. Reversing gear; 31. Second rack; 33. Positioning mechanism; 34. Bearing seat; 35. Motor; 36. First bevel gear; 37. Second bevel gear; 38. Power shaft; 39. Tightening plug rod; 40. Tightening support; 41. Tightening spring; 43. Tightening slide seat; 44. Tightening screw sleeve; 45. Bidirectional screw; 46. Sub pulley; 47. Main pulley. Specific embodiments

[0041] In order to further understand the features, technical means, specific purposes and functions achieved by the present invention, the present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0042] Reference Figures 1 to 12 , a fully enclosed linear motor module, including a base 1, a power source 2 is arranged at one end of the base 1, the output end of the power source 2 is fixedly connected to a slide table 4, the slide table 4 is slidably connected to the base 1, a sealing cover 12 is fixedly connected to the upper end of the base 1, a steel belt 13 is located at the upper end of the sealing cover 12 and is slidably connected to the base 1, and further includes:

[0043] Step tables 11 are respectively formed on the sides of the upper end of the sealing cover 12 close to each other (as Figure 5 shown);

[0044] Two extrusion rollers 6 are arranged on the side of the slide table 4 close to the steel belt 13 and abut against the upper end of the steel belt 13;

[0045] Two main air pipes 15 (as Figure 6 shown) are respectively fixedly connected to the two step tables 11 and communicated with the input end of an external pump;

[0046] Two sealing mechanisms 16 are respectively connected to the two step tables 11, including two rubber concave platforms 17, two sealing strips 14, a plurality of rubber frames 18 and a plurality of air sealing mechanisms 19. The two rubber concave platforms 17 are arranged on both sides of the main air pipe 15, the lower ends of the two sealing strips 14 respectively abut against the two rubber concave platforms 17, the upper ends are fixedly connected to the steel belt 13, the plurality of rubber frames 18 are arranged at equal intervals on the upper end of the main air pipe 15 and are fixedly sealed to the corresponding step tables 11, and the plurality of air sealing mechanisms 19 are respectively arranged at the lower ends of the plurality of rubber frames 18 and perform negative pressure positioning on the steel belt 13;

[0047] A plurality of positioning mechanisms 33 are respectively arranged to be connected to a plurality of air sealing mechanisms 19 and assist in positioning the sealing strip 14.

[0048] When the device is in operation, the power source 2 starts and drives the sliding table 4 to perform linear reciprocating motion along the base 1 (the power source 2 is a linear motor, without an additional device for converting rotational motion into linear motion, and has high positioning accuracy, which can eliminate the positioning error caused by intermediate links). During the movement of the sliding table 4, the pressing roller 6 is always elastically pressed against the upper end of the steel strip 13, so that the steel strip 13 drives the sealing strip 14 to move. When the sliding table 4 moves to different positions, the steel strip 13 will have relative deformation with the sliding table 4 and buckle on the upper end of the sliding table 4 to prevent impurities from entering. At the same time, as the steel strip 13 contacts and separates from the rubber concave platform 17, the air sealing mechanism 19 and the positioning mechanism 33 work together. When the steel strip 13 contacts the rubber concave platform 17, the air sealing mechanism 19 realizes the negative pressure positioning of the steel strip 13 through the linkage of a series of components, and at the same time the positioning mechanism 33 performs mechanical auxiliary positioning on the sealing strip 14 to achieve double guarantee of the sealing effect. The whole device realizes a fully enclosed operating environment through the close cooperation of each component, effectively preventing the influence of dust, impurities, etc. on the internal structure, and ensuring the stable operation and service life of the linear motor module.

[0049] In order to ensure that the inside of the sealing cover 12 remains sealed when the steel strip 13 drives the sliding table 4 to move, the following features are specifically set:

[0050] An arc-shaped top platform 5 is formed in the middle of the sliding table 4. The two sides of the arc-shaped top platform 5 are respectively in sliding contact with the corresponding sealing strips 14, and the middle is in sliding contact with the steel strip 13. The arc-shaped top platform 5 is in dynamic sealing connection with the sealing strip 14. The arc-shaped top platform 5 plays a key role in sealing assistance during the operation of the device. When the sliding table 4 moves, the arc-shaped top platform 5 and the sealing strip 14 always keep close contact. Its unique arc design can adapt to the deformation of the sealing strip 14 at different positions, further strengthening the sealing effect and preventing dust, impurities, etc. from entering the inside of the sealing cover 12 through the gap between the sliding table 4 and the sealing strip 14.

[0051] In order to ensure that the pressing roller 6 can be elastically pressed against the upper end of the steel strip 13, ensure that the steel strip 13 can drive the sealing strip 14 to have a downward movement trend, so that when the steel strip 13 separates from the sliding table 4, the steel strip 13 will push the sealing strip 14 to abut against the corresponding rubber concave platform 17, the following features are specifically set:

[0052] At the upper ends of the two extrusion rollers 6, there are respectively provided a wheel seat 7, a positioning seat 10, a plurality of extrusion springs 8 and a plurality of extrusion pins 9. The wheel seat 7 is rotatably connected to both ends of the extrusion roller 6. The positioning seat 10 is arranged above the wheel seat 7 and fixedly connected to the slide table 4. The plurality of extrusion pins 9 are arranged at equal intervals along the upper end of the wheel seat 7. The lower end of the extrusion pin 9 is fixedly connected to the wheel seat 7, and the upper end is slidably connected to the positioning seat 10. The plurality of extrusion springs 8 are respectively sleeved outside the plurality of extrusion pins 9. The upper end of the extrusion spring 8 is fixedly connected to the positioning seat 10, and the lower end is fixedly connected to the wheel seat 7. The extrusion spring 8 can continuously provide a downward pressure for the extrusion roller 6, so that the extrusion roller 6 is always elastically abutted against the upper end of the steel belt 13. When the slide table 4 moves, the extrusion roller 6 can roll following the deformation of the steel belt 13 (the steel belt 13 will be lifted by the slide table 4 when the slide table 4 moves), and at the same time maintain the pressure on the steel belt 13, ensuring that the steel belt 13 can drive the sealing strip 14 to have a tendency to move downward. Furthermore, when the steel belt 13 is separated from the slide table 4, the steel belt 13 will push the sealing strip 14 to closely abut against the corresponding rubber concave table 17, maintaining a good sealing state.

[0053] In order to achieve negative pressure positioning of the lower end of the main air pipe 15 on the steel belt 13 through the air sealing mechanism 19 when the upper ends of the steel belt 13 and the rubber frame 18 are abutted, the following features are specifically set:

[0054] The air sealing mechanism 19 further includes two guide air pipes 20, two auxiliary air pipes 21 and two jacking air pipes 22. The two jacking air pipes 22 are respectively slidably connected to the stepped platform 11. A plurality of air holes 23 (as Figure 12 shown) are formed at equal angles along the circumferential direction at the upper end of the jacking air pipe 22. One ends of the two auxiliary air pipes 21 are respectively communicated with the lower ends of the two jacking air pipes 22. The other ends of the two auxiliary air pipes 21 are respectively slidably connected to the two guide air pipes 20. The upper ends of the two guide air pipes 20 are respectively communicated with the main air pipe 15. When the upper ends of the steel belt 13 and the rubber frame 18 are abutted, an external pump generates suction through the main air pipe 15. The gas flows through the air holes 23 of the jacking air pipe 22 into the auxiliary air pipe 21 and the guide air pipe 20 in sequence, and finally is drawn out through the main air pipe 15, so as to form a negative pressure at the lower end of the steel belt 13, realizing negative pressure positioning of the steel belt 13 and further enhancing the sealing effect.

[0055] In order to prevent part of the dust from falling into the rubber frame 18 and causing blockage inside the main air pipe 15 when being drawn away through the main air pipe 15, and at the same time enable this part of the dust to be concentrated inside the rubber frame 18, so as to facilitate centralized treatment of this part of the dust during the maintenance process, the following features are specifically set:

[0056] The air sealing mechanism 19 further includes two dust covers 24, the two dust covers 24 (as Figure 12They are respectively coaxially arranged with two jacking pipes 22 and fixedly connected to the upper end of the stepped platform 11 (as shown). The dust cover 24 blocks the dust inside it, making the dust concentrate inside the rubber frame 18, which facilitates the centralized treatment of this part of the dust during maintenance, ensuring the normal operation of the device and the convenience of maintenance.

[0057] In order to enable the corresponding jacking pipe 22 to move upward when the sealing strip 14 contacts the rubber concave platform 17, so that the air hole 23 can extend out of the stepped platform 11, ensuring that the main air pipe 15 can evacuate the gas after passing through the guide air pipe 20, the auxiliary air pipe 21 and the jacking pipe 22, the following features are specifically set:

[0058] The air sealing mechanism 19 further includes two downward pressing pin shafts 25, two first rack bars 28, two reversing gears 30 and two second rack bars 31. The two downward pressing pin shafts 25 are respectively slidably connected to the corresponding rubber concave platforms 17 (as shown Figure 9 ), the two first rack bars 28 are respectively fixedly connected to the two downward pressing pin shafts 25, the two reversing gears 30 are respectively rotatably arranged at the lower end of the stepped platform 11 through tooth seats, the two reversing gears 30 are respectively meshed with the two first rack bars 28, the two second rack bars 31 are respectively meshed with the other sides of the two reversing gears 30, the two second rack bars 31 are respectively fixedly connected to the two jacking pipes 22, and positioning grooves 29 are respectively formed on both sides of the lower ends of the two first rack bars 28 (as shown Figure 8 ). When the sealing strip 14 contacts the rubber concave platform 17, the movement of the sealing strip 14 will drive the downward pressing pin shaft 25 to move downward, the downward pressing pin shaft 25 drives the first rack bar 28 to move downward, the first rack bar 28 drives the second rack bar 31 to move upward through the reversing gear 30, and then the jacking pipe 22 moves upward, and the air hole 23 in the jacking pipe 22 extends out of the stepped platform 11. At this time, the main air pipe 15 can evacuate the gas after passing through the guide air pipe 20, the auxiliary air pipe 21 and the jacking pipe 22, realizing negative pressure positioning.

[0059] In order to facilitate the self-upward reset of the downward pressing pin shaft 25 after the sealing strip 14 leaves the rubber concave platform 17, the following features are specifically set:

[0060] The air sealing mechanism 19 further includes a downward pressing push plate 26 and a reset tension spring 27. The downward pressing push plate 26 is fixedly connected to the downward pressing pin shaft 25. The reset tension spring 27 is coaxially sleeved outside the downward pressing pin shaft 25. The upper end of the reset tension spring 27 is fixedly connected to the rubber concave platform 17, and the lower end is fixedly connected to the downward pressing push plate 26. When the sealing strip 14 leaves the rubber concave platform 17, the reset tension spring 27 will pull the downward pressing push plate 26 upward, thereby driving the downward pressing pin shaft 25 to reset upward, preparing for the next sealing action.

[0061] In order to mechanically position the downward pressed first rack bar 28, and then cooperate with the negative pressure positioning to reinforce the steel belt 13, the following features are specifically set:

[0062] The positioning mechanism 33 also includes a bearing seat 34, four abutting rods 39, four abutting supports 40, four abutting springs 41 and four abutting slides 43. The bearing seat 34 is fixedly connected to the inner wall of the sealing cover 12, and two abutting slides 43 (such as Figure 8 As shown in the figure, the pressing slide 43 is fixedly connected to the upper end of the bearing seat 34, the four pressing supports 40 are respectively fixedly connected to the four pressing slides 43, the four pressing rods 39 are respectively slidably connected to the upper ends of the four pressing supports 40, the four pressing springs 41 are respectively arranged on the side of the four pressing supports 40 close to the first rack 28, the four pressing springs 41 are respectively sleeved on the outside of the four pressing rods 39, one end of the pressing spring 41 is fixedly connected to the pressing rod 39, and the other end is fixedly connected to the pressing support 40, and the end of the pressing rod 39 close to the first rack 28 is inserted into the corresponding positioning groove 29 when the first rack 28 moves downward. After the first rack 28 is pressed down, the pressing rod 39 can be inserted into the corresponding positioning groove 29 under the action of the pressing spring 41, so as to realize the mechanical positioning of the first rack 28, cooperate with the negative pressure positioning of the steel belt 13 by the air sealing mechanism 19, further strengthen the positioning effect of the steel belt 13, and ensure the stability of the seal.

[0063] In order to enable the pressing rod 39 to be pulled out from the corresponding positioning groove 29 when the steel belt 13 and the rubber frame 18 are separated, so that the pressing pin 25 can be moved upward and reset under the action of the reset spring 27, since the pressing support 40 needs to be moved away from the first rack 28 by external power at this time, the following features are also specifically provided:

[0064] The positioning mechanism 33 also includes four locking screw sleeves 44, two bidirectional screws 45, two secondary pulleys 46 and two main pulleys 47. The main pulley 47 is rotatably arranged at the upper end of the bearing seat 34 through the wheel seat 7. The two secondary pulleys 46 are respectively rotatably connected to the two wheel seats 7 and are transmission connected to the main pulley 47 through belts. The two bidirectional screws 45 are respectively coaxially fixed to the two secondary pulleys 46. Two locking screw sleeves 44 are respectively arranged at both ends of each bidirectional screw 45. The locking screw sleeve 44 is threadedly connected to the bidirectional screw 45, and the locking screw sleeve 44 is fixed to the locking support 40. When it is necessary to remove the clamping rod 39 from the corresponding positioning groove 29, the primary pulley 47 drives the secondary pulley 46 to rotate via the belt, and the secondary pulley 46 drives the bidirectional screw 45 to rotate. The bidirectional screw 45 causes the clamping screw sleeve 44 to move along its own axial direction, thereby driving the clamping support 40 to move away from the first rack 28, so that the clamping rod 39 can be removed from the positioning groove 29.

[0065] In order to supplement the specific structure of the external power source and provide power for the rotation of the main pulley 47, the following features are also specifically provided:

[0066] The positioning mechanism 33 further includes a motor 35, a power shaft 38, two first bevel gears 36 and two second bevel gears 37. The motor 35 is fixedly arranged at the upper end of the bearing seat 34. The power shaft 38 is coaxially and fixedly connected to the output end of the motor 35. The two first bevel gears 36 are respectively coaxially and fixedly connected to the power shaft 38. The two second bevel gears 37 are respectively meshed with the two first bevel gears 36 and are coaxially and fixedly connected to the corresponding main belt pulley 47. The motor 35 serves as an external power source. After the motor 35 is started, it drives the two first bevel gears 36 to rotate through the power shaft 38. The first bevel gears 36 drive the second bevel gears 37 to rotate through meshing. The second bevel gears 37 then drive the main belt pulley 47 to rotate, providing power for the rotation of the main belt pulley 47 and realizing a series of actions such as the extraction and reset of the pressing plug 39.

[0067] The working principle of this device is that after the power source 2 is started, it drives the slide table 4 to move linearly along the base 1 (the power source 2 is a linear motor, without an additional device for converting rotational motion into linear motion, and has high positioning accuracy, which can eliminate the positioning error caused by intermediate links). During the movement of the slide table 4, the two pressing rollers 6 arranged on the side close to the steel belt 13 are always elastically pressed against the upper end of the steel belt 13 under the coordinated action of the wheel seat 7, the positioning seat 10, the pressing spring 8 and the pressing pin 9. This enables the steel belt 13 to deform stably under the drive of the slide table 4 and drives the connected sealing strip 14 to generate corresponding deformation, realizing fully enclosed operation.

[0068] The stepped platform 11 at the upper end of the sealing cover 12 provides a key installation foundation for the entire sealing system. The main air pipe 15 is fixedly connected to the stepped platform 11 and is connected to the input end of an external pump through which air flow can be generated. When the steel belt 13 moves to the position where it abuts against the upper end of the rubber frame 18, the air sealing mechanism 19 starts to function. The gas in the main air pipe 15 enters the lifting pipe 22 through the guide pipe 20 and the auxiliary air pipe 21. The air holes 23 at the upper end of the lifting pipe 22 discharge the gas, forming a negative pressure at the lower end of the steel belt 13, thereby tightly adsorbing the steel belt 13 on the rubber frame 18 to achieve negative pressure positioning and further enhance the sealing effect.

[0069] During this process, the dust-proof cover 24 can effectively prevent dust from entering the main air pipe 15 and prevent the main air pipe 15 from being blocked. When the sealing strip 14 contacts the rubber concave platform 17, the movement of the sealing strip 14 drives the first rack 28 to move downward through the downward pressing pin 25. The first rack 28 makes the second rack 31 move upward through the reversing gear 30, and then pushes the lifting pipe 22 upward, making the air holes 23 extend out of the stepped platform 11 to ensure that the gas can be smoothly discharged through the main air pipe 15. When the downward pressing pin 25 moves downward, the downward pressing push plate 26 moves accordingly, stretching the reset tension spring 27. When the sealing strip 14 leaves the rubber concave platform 17, the elastic force of the reset tension spring 27 drives the downward pressing push plate 26 and the downward pressing pin 25 to reset upward.

[0070] The positioning mechanism 33 plays a role of fixing and positioning in the whole device. When the first rack 28 moves downward, the abutting plug 39 is inserted into the positioning groove 29 at the lower end of the first rack 28 under the action of the abutting spring 41 to mechanically position the first rack 28. Combined with the negative pressure positioning of the air sealing mechanism 19, it jointly ensures the stable positioning of the steel belt 13. When it is necessary to withdraw the abutting plug 39 from the positioning groove 29, the motor 35 is started, and the first bevel gear 36 is driven to rotate through the power shaft 38. The first bevel gear 36 meshes with the second bevel gear 37, thereby driving the main pulley 47 to rotate. The main pulley 47 drives the auxiliary pulley 46 to rotate through the belt, and the auxiliary pulley 46 drives the bidirectional screw 45 to rotate. The bidirectional screw 45 moves the abutting nut sleeve 44, and further drives the abutting support 40 to move away from the first rack 28, so that the abutting plug 39 is withdrawn from the positioning groove 29.

[0071] In summary, through the precise cooperation between various components of this fully enclosed linear motor module, full-enclosed protection inside the seal cover 12 is achieved during the movement of the sliding table 4, effectively preventing the intrusion of external dust, impurities, etc., and ensuring the stable operation and working performance of the device.

[0072] The above embodiments only represent one or several implementation manners of the present invention, and the description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the appended claims.

Claims

1. A fully enclosed linear motor module, comprising a base (1), a power source (2) being arranged at one end of the base (1), an output end of the power source (2) being fixedly connected to a slide table (4), the slide table (4) being slidably connected to the base (1), a sealing cover (12) being fixedly connected to an upper end of the base (1), a steel belt (13) being located at an upper end of the sealing cover (12) and being slidably connected to the base (1), characterized in that: Also includes: The sealing cover (12) has stepped platforms (11) formed on the sides close to the upper end thereof; Two squeezing rollers (6) are arranged on a side of the slide table (4) close to the steel belt (13) and abut against the upper end of the steel belt (13); Two main air pipes (15) are respectively fixedly connected to the two stepped platforms (11) and communicated with the input end of an external pump; Two sealing mechanisms (16) are respectively connected to the two step platforms (11), and include two rubber concave platforms (17), two sealing strips (14), a plurality of rubber frames (18) and a plurality of air sealing mechanisms (19). The two rubber concave platforms (17) are arranged on both sides of the main air pipe (15). The lower ends of the two sealing strips (14) are respectively abutted against the two rubber concave platforms (17), and the upper ends are fixedly connected to the steel belt (13). The plurality of rubber frames (18) are arranged in an array at equal intervals at the upper end of the main air pipe (15) and are sealed and fixedly connected to the corresponding step platforms (11). The plurality of air sealing mechanisms (19) are respectively arranged at the lower ends of the plurality of rubber frames (18) and perform negative pressure positioning on the steel belt (13). A plurality of positioning mechanisms (33) are respectively arranged and connected to the plurality of air sealing mechanisms (19) and assist in positioning the sealing strip (14).

2. A fully enclosed linear motor module according to claim 1, characterized in that: An arc-shaped top platform (5) is formed in the middle of the slide (4). The two sides of the arc-shaped top platform (5) are respectively slidably opposed to the corresponding sealing strips (14), and the middle part is slidably opposed to the steel belt (13). The arc-shaped top platform (5) is dynamically sealed to the sealing strip (14).

3. A fully enclosed linear motor module according to claim 1, characterized in that: The upper ends of the two extrusion rollers (6) are respectively provided with a wheel seat (7), a positioning seat (10), a plurality of extrusion springs (8) and a plurality of extrusion pins (9); the wheel seat (7) is rotatably connected to both ends of the extrusion roller (6); the positioning seat (10) is arranged above the wheel seat (7) and is fixedly connected to the slide table (4); the plurality of extrusion pins (9) are arranged in an array at equal intervals along the upper end of the wheel seat (7); the lower end of the extrusion pin (9) is fixedly connected to the wheel seat (7) and the upper end is slidably connected to the positioning seat (10); the plurality of extrusion springs (8) are respectively sleeved on the outside of the plurality of extrusion pins (9); the upper end of the extrusion spring (8) is fixedly connected to the positioning seat (10) and the lower end is fixedly connected to the wheel seat (7).

4. A fully enclosed linear motor module according to claim 1, characterized in that: The air sealing mechanism (19) further comprises two air guide pipes (20), two auxiliary air pipes (21) and two lifting pipes (22); the two lifting pipes (22) are respectively connected in a sliding manner to the step platform (11); the upper ends of the lifting pipes (22) are formed with a plurality of air holes (23) in an array at equal angles along a circumferential direction; one end of the two auxiliary air pipes (21) is respectively connected to the lower ends of the two lifting pipes (22); the other ends of the two auxiliary air pipes (21) are respectively connected in a sliding manner to the two air guide pipes (20); and the upper ends of the two air guide pipes (20) are respectively connected to the main air pipe (15).

5. A fully enclosed linear motor module according to claim 4, characterized in that: The air sealing mechanism (19) further comprises two dust covers (24), which are respectively arranged coaxially with the two lifting pipes (22) and fixedly connected to the upper end of the stepped platform (11).

6. A fully enclosed linear motor module according to claim 4, characterized in that: The air sealing mechanism (19) further comprises two pressing pins (25), two first racks (28), two reversing gears (30) and two second racks (31). The two pressing pins (25) are respectively slidably connected to the corresponding rubber concave platforms (17). The two first racks (28) are respectively fixedly connected to the two pressing pins (25). The two reversing gears (30) are respectively rotatably arranged at the lower end of the stepped platform (11) through a gear seat. The two reversing gears (30) are respectively meshed with the two first racks (28). The two second racks (31) are respectively meshed with the other sides of the two reversing gears (30). The two second racks (31) are respectively fixedly connected to the two lifting pipes (22). Positioning grooves (29) are respectively formed on both sides of the lower ends of the two first racks (28).

7. A fully enclosed linear motor module according to claim 6, characterized in that: The air sealing mechanism (19) further comprises a downward pressing push plate (26) and a return spring (27), wherein the downward pressing push plate (26) is fixedly connected to the downward pressing pin shaft (25), the return spring (27) is coaxially sleeved on the outside of the downward pressing pin shaft (25), the upper end of the return spring (27) is fixedly connected to the rubber concave platform (17), and the lower end is fixedly connected to the downward pressing push plate (26).

8. A fully enclosed linear motor module according to claim 6, characterized in that: The positioning mechanism (33) further comprises a bearing seat (34), four abutting rods (39), four abutting supports (40), four abutting springs (41) and four abutting slides (43); the bearing seat (34) is fixedly connected to the inner wall of the sealing cover (12); two abutting slides (43) are respectively arranged below each first rack (28); the abutting slides (43) are fixedly connected to the upper end of the bearing seat (34); the four abutting supports (40) are respectively fixedly connected to the four abutting slides (43); the four abutting rods (39) are respectively The four clamping springs (41) are respectively arranged on one side of the four clamping supports (40) close to the first rack (28), and the four clamping springs (41) are respectively sleeved on the outside of the four clamping rods (39). One end of the clamping spring (41) is fixedly connected to the clamping rod (39), and the other end is fixedly connected to the clamping support (40). One end of the clamping rod (39) close to the first rack (28) is inserted into the corresponding positioning groove (29) when the first rack (28) moves downward.

9. A fully enclosed linear motor module according to claim 8, characterized in that: The positioning mechanism (33) further comprises four abutting screw sleeves (44), two bidirectional screw rods (45), two secondary belt pulleys (46) and two main belt pulleys (47). The main belt pulley (47) is rotatably arranged at the upper end of the bearing seat (34) via a wheel seat (7). The two secondary belt pulleys (46) are respectively rotatably connected to the two wheel seats (7) and are transmission-connected to the main belt pulleys (47) via belts. The two bidirectional screw rods (45) are respectively coaxially fixedly connected to the two secondary belt pulleys (46). Two abutting screw sleeves (44) are respectively arranged at both ends of each bidirectional screw rod (45). The abutting screw sleeves (44) are threadedly connected to the bidirectional screw rod (45), and the abutting screw sleeves (44) are fixedly connected to the abutting support (40).

10. A fully enclosed linear motor module according to claim 9, characterized in that: The positioning mechanism (33) further comprises a motor (35), a power shaft (38), two first bevel teeth (36) and two second bevel teeth (37); the motor (35) is fixedly arranged at the upper end of the bearing seat (34); the power shaft (38) is coaxially fixedly connected to the output end of the motor (35); the two first bevel teeth (36) are coaxially fixedly connected to the power shaft (38); and the two second bevel teeth (37) are respectively meshed with the two first bevel teeth (36) and coaxially fixedly connected to the corresponding main pulley (47).

Images