A clean linear motor module

Abstract

The present invention discloses a clean linear motor module, which specifically relates to the technical field of linear motors, including a motor base and a slide seat, guide rail grooves are arranged on both sides of the motor base, side plates are fixedly installed on both sides of the slide seat, a guide rod assembly is arranged on the inner side of the guide rail groove, a guide wheel extending into the guide rail groove and adapted to the guide rod assembly is arranged on the inner side of the side plate, the guide rod assembly includes a lower guide rod and an upper guide rod, the lower guide rod is slidably installed in the bottom wall of the guide rail groove, and a height adjustment structure is arranged at the bottom of the lower guide rod. Since the guide structure of the present invention is arranged on the outer side of the motor base, it will not be disturbed by the working temperature of the inner cavity of the motor base, and can maintain a good working state. Even if the module is affected by the external temperature, causing the guide wheel to expand, it will not interfere with the upper guide rod and cause wear, which can effectively ensure the safety of the module operation and improve the service life of the module.

Description

Technical Field

[0001] The present invention relates to the technical field of linear motors, and more specifically, to a clean linear motor module. Background Art

[0002] The linear motor is a traditional cylindrical motor that is stretched and straightened to change the primary closed magnetic field into an open magnetic field. The stator part of the rotary motor becomes the primary of the linear motor, and the rotor part of the rotary motor becomes the secondary of the linear motor. If the primary is fixed, the secondary can move linearly along the direction of the traveling magnetic field. This can realize the direct drive feed mode of the linear motor of the high-speed machine tool, and the primary and secondary of the linear motor are directly installed on the workbench and bed of the high-speed machine tool respectively.

[0003] The main structure of a linear motor consists of a stator and a mover. The stator can be composed of windings or permanent magnets. The windings can generate a magnetic field through current, and the permanent magnets can provide a constant magnetic field without the need for external current. Sometimes, the stator also contains an iron core to enhance the strength and directionality of the magnetic field. The mover is usually equipped with a coil or a conductor bar. The coil can generate electromagnetic force in the magnetic field of the stator to move the mover. The conductor bar can interact with the magnetic field of the stator through electromagnetic induction.

[0004] When current passes through the stator winding or the mover coil, the electromagnetic force causes the mover to generate a driving force in the magnetic field generated by the stator. This force causes the mover to move in a straight line, forming a linear drive.

[0005] A clean linear motor is a specially designed linear motor that aims to meet the requirements of a high cleanliness environment. In order to prevent external dust or other contaminants from entering the motor and affecting the operation of the motor stator and mover, a clean linear motor usually needs to have an excellent sealing design, such as setting a closed structure such as a steel belt or an accordion cover between the slide and the base to provide cover and protection for the stator and mover.

[0006] In the prior art, linear guide modules are mostly used to guide the sliding between the slide and the base, and the slider and the guide of the linear guide module are matched with each other through balls to reduce resistance. However, since the clean linear motor module is almost in a closed state, and when the linear motor is actually used, the current passes through the coil, the resistance will cause the energy to be dissipated in the form of heat, and the electromagnetic loss (such as eddy current loss and hysteresis loss) will generate heat, which will cause the temperature in the inner cavity of the linear motor to change.

[0007] Although some linear motors are equipped with some cooling equipment, the cooling equipment can only ensure that the stator and mover of the linear motor work normally within a safe temperature range. The actual temperature inside the linear motor is still higher than the external ambient temperature. Especially when the equipment is overloaded, the temperature will rise significantly. At this time, the linear guide module is also inside the linear motor, and it is not easy to dissipate heat due to the blockage of the closed structure, which will cause thermal expansion of structures such as sliders, slide rails and balls.

[0008] Among them, some linear motors are high-precision products. Therefore, in actual design, the matching accuracy of various components of the linear guide structure is relatively high. During use, if the structure in the linear guide module expands slightly due to temperature reasons, the contact tightness between the ball, slider and guide rail will increase, the sliding resistance will increase, the sliding wear will increase, and the service life of the linear motor module will be reduced. Due to the existence of the closed structure, it is not convenient to maintain and maintain the linear guide module arranged inside the motor, and it is more troublesome to clean. Summary of the invention

[0009] A clean linear motor module provided by the present invention aims to solve the problem that the linear guide rail module of the existing clean linear motor module is located inside the linear motor and is blocked by a closed structure, which makes it difficult to dissipate heat, thereby causing a slight expansion of the structure in the linear guide rail module, thereby increasing the contact tightness between the ball, the slider and the guide rail, increasing the sliding resistance, increasing the sliding wear and reducing the service life of the linear motor module.

[0010] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a clean linear motor module, comprising a motor base and a slide seat, a stator is arranged in the inner cavity of the motor base, a mover is arranged at the bottom of the slide seat, a closed structure is arranged between the slide seat and the inner cavity of the motor base, guide rail grooves are arranged on both sides of the motor base, side plates are fixedly installed on both sides of the slide seat, a guide rod assembly is arranged on the inner side of the guide rail groove, and a guide wheel extending into the guide rail groove and adapted to the guide rod assembly is arranged on the inner side of the side plate;

[0011] The guide wheel is rotatably mounted on the side plate, and the guide rod assembly includes a lower guide rod and an upper guide rod, the lower guide rod is slidably mounted in the bottom wall of the guide rail groove, and the upper guide rod is fixedly mounted in the top wall of the guide rail groove, the guide wheel and the lower guide rod are rollingly fitted, and a gap is left between the guide wheel and the upper guide rod, and a height adjustment structure is provided at the bottom of the lower guide rod, which is used to adjust the height of the lower guide rod, and a sealing assembly is provided between the side plate and the guide rail groove.

[0012] In a preferred embodiment, the height adjustment structure includes a lifting block, a slot is provided at a position of the motor base corresponding to the bottom of the lower guide rod, the lifting block is slidably installed in the slot, an inclined mating surface is provided between the top of the lifting block and the bottom of the lower guide rod, and a tightening screw is rotatably provided in the lifting block, and the tightening screw is threadedly inserted into the motor base.

[0013] In a preferred embodiment, grooves that match the lower guide rod and the upper guide rod are provided on the circumferential surface of the guide wheel, and the grooves of the guide wheel match the lower guide rod and the upper guide rod respectively.

[0014] In a preferred embodiment, the blocking assembly includes blocking blocks, which are arranged in two groups. The two groups of blocking blocks are respectively fixedly mounted on both ends of the side panels, and the blocking blocks extend into the interior of the guide rail groove, leaving gaps between the blocking blocks and the inner wall of the guide rail groove and between the lower guide rod and the upper guide rod.

[0015] In a preferred embodiment, the sealing assembly includes a belt structure, a plurality of sets of external guide wheels are rotatably provided on one side of the side plate corresponding to the guide rail groove, a through channel is provided inside the side plate, and a plurality of sets of internal guide wheels are rotatably installed in the through channel, the belt structure is sleeved on the outside of the external guide wheel and the internal guide wheel, the portion of the belt structure supported by the external guide wheel is arranged in contact with the inner wall of the stator, and each set of guide wheels is located on the inner side of the belt structure.

[0016] In a preferred embodiment, gaps are provided between the top and bottom of the belt structure and the top and bottom of the guide rail groove, and cleaning brush structures are fixedly installed on the top and bottom of the belt structure.

[0017] In a preferred embodiment, scraper assemblies are provided at positions corresponding to the top and bottom of the belt structure in the through channel of the side plate, and the scraper assemblies are composed of an elastic scraper and a semi-enclosed docking plate. The semi-enclosed docking plate is fixedly installed in the through channel of the side plate, and one end of the semi-enclosed docking plate close to the elastic scraper is arranged parallel to the end face of the cleaning structure. The elastic scraper is rotatably installed in the through channel of the side plate, and one end of the semi-enclosed docking plate close to the cleaning structure is adapted to the movable end of the elastic scraper.

[0018] In a preferred embodiment, an elastic member is provided between the elastic scraper and the side plate, and the elastic member is used to drive the movable end of the elastic scraper to move toward the root of the cleaning structure. The scraper assemblies at the top and bottom of the belt structure are each provided with at least two groups, and the two groups of scraper assemblies at the top of the belt structure and the two groups of scraper assemblies at the bottom of the belt structure are symmetrically provided.

[0019] In a preferred embodiment, a heat exchange chamber is provided inside the side plate, a heat exchange chamber inner wall is provided with a heat sink parallel to the movement direction of the slide, the bottom of the heat sink extends out of the side plate, a plurality of flow-carrying plates are fixedly connected to the inner wall of the belt structure, and the heat exchange chamber is provided corresponding to the flow-carrying plates.

[0020] In a preferred embodiment, a brake assembly is arranged between the side plate and the belt structure, the brake assembly includes a brake block, a protruding structure extending into the guide rail groove is arranged on the inner side of the side plate, the brake block is slidably installed in the protruding structure of the side plate, an electromagnetic coil is arranged in the side plate, and a permanent magnet is fixedly installed on one side of the brake block corresponding to the electromagnetic coil.

[0021] The beneficial effects of the present invention are:

[0022] When the present invention is actually used, since the guide structure is arranged on the outside of the motor base, it will not be disturbed by the working temperature of the inner cavity of the motor base and can maintain a good working state. Even if the module is affected by the external temperature and the guide wheel causes expansion, it will not interfere with the upper guide rod and cause wear. The safety of the module operation can be effectively guaranteed and the service life of the module can be improved. The height of the lower guide rod is adjustable, and the lower guide rod can be fine-tuned according to different working environments to improve the adaptation accuracy of the module.

[0023] Since the guide wheel and the lower guide rod are in rolling cooperation, less lubrication is required, and less lubricating oil can be used. In addition, the guide wheel and the lower guide rod can also be made of self-lubricating material, so lubricating oil is not needed, which further improves the cleanliness of the module. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0025] Figure 2 It is a transverse cross-sectional view of the present invention.

[0026] Figure 3 Schematic diagram of the internal structure of the guide rail groove of the present invention.

[0027] Figure 4 It is a schematic diagram of the guide wheel of the present invention cooperating with the guide rod assembly in the guide rail groove.

[0028] Figure 5 The present invention is based on Figure 4 A magnified view of the local structure.

[0029] Figure 6 This is a schematic structural diagram of another sealing assembly used in the present invention.

[0030] Figure 7 It is a top view of the matching state of the belt structure of the present invention in the guide rail groove.

[0031] Figure 8 For the present invention Figure 6 A-section structure enlarged view.

[0032] Fig. 9 It is a top view of the flow-carrying piece on the inner side of the belt structure of the present invention.

[0033] Fig.10 It is a side view of the matching state of the flow-carrying plate and the heat exchange cavity of the present invention.

[0034] Fig.11 This is a schematic diagram of the overall structure of the belt structure of the present invention in which scraper assemblies are arranged at the top and bottom.

[0035] Fig.12 For the present invention Figure 7 Enlarged view of the structure of part B in .

[0036] The accompanying drawings are marked as follows: 1. motor base; 11. guide rail groove; 12. stator; 2. slide seat; 21. side plate; 211. heat exchange chamber; 212. heat sink; 22. mover; 23. guide wheel; 3. closed structure; 4. guide rod assembly; 41. lower guide rod; 42. upper guide rod; 43. lifting block; 44. tightening screw; 5. sealing assembly; 51. sealing block; 52. belt structure; 521. brush structure; 522. flow-carrying sheet; 53. external guide wheel; 54. internal guide wheel; 6. scraper assembly; 61. elastic scraper; 62. semi-enclosed docking plate; 7. brake block; 71. permanent magnet; 72. electromagnetic coil. DETAILED DESCRIPTION

[0037] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0038] Refer to the instruction manual Figures 1 to 12 A clean linear motor module includes a motor base 1 and a slide 2. A stator 12 is arranged in the inner cavity of the motor base 1. A mover 22 is arranged at the bottom of the slide 2. The mover 22 is adapted to the stator 12, thereby providing power for the slide 2 to slide on the motor base 1. In order to protect the stator 12 and the mover 22, a closed structure 3 is arranged between the slide 2 and the inner cavity of the motor base 1 to protect the inner cavity of the motor base 1. Different from the prior art, the present invention does not arrange a guide structure inside the motor base 1, but transfers the guide structure to the outside of the motor base 1. Specifically:

[0039] Guide rail grooves 11 are provided on both sides of the motor base 1, and side plates 21 are fixedly installed on both sides of the slide 2. A guide rod assembly 4 is provided on the inner side of the guide rail groove 11, and a guide wheel 23 extending into the guide rail groove 11 and adapted to the guide rod assembly 4 is provided on the inner side of the side plate 21, wherein the guide wheel 23 is rotatably mounted on the side plate 21 and is vertically arranged, and the guide rod assembly 4 includes a lower guide rod 41 and an upper guide rod 42, the lower guide rod 41 is slidably mounted in the bottom wall of the guide rail groove 11, and the upper guide rod 42 is fixedly mounted in the top wall of the guide rail groove 11, and the guide wheel The guide wheels 23 are respectively matched with the lower guide rod 41 and the upper guide rod 42, and grooves matched with the lower guide rod 41 and the upper guide rod 42 are arranged on the circumferential surface of the guide wheel 23, so that the bottom of the guide wheel 23 and the lower guide rod 41 are rollingly matched, and the upper guide rod 42 is matched with the groove of the guide wheel 23 above the guide wheel 23 to form a restriction on the guide wheel 23, and a gap is left between the groove of the guide wheel 23 and the upper guide rod 42, and the gap is a small gap, and a height adjustment structure is arranged at the bottom of the lower guide rod 41 for adjusting the height of the lower guide rod 41.

[0040] Through the above-mentioned arrangement, in actual use, since the guide structure is arranged on the outside of the motor base 1, it will not be disturbed by the working temperature of the inner cavity of the motor base 1 and can maintain a good working state. Moreover, the sliding guide and support of the slide 2 are mainly realized by the rolling cooperation between the guide wheel 23 and the lower guide rod 41. Therefore, the upper guide rod 42 only serves as an auxiliary restriction to the guide wheel 23, and there is no need for the two to contact in actual use. Therefore, even if the module is affected by the external temperature and causes the guide wheel 23 to expand, it will not interfere with the upper guide rod 42 and cause wear, which can effectively ensure the safety of the module operation and improve the service life of the module. At the same time, since the guide wheel 23 rolls with the lower guide rod 41, less lubrication is required, less lubricating oil can be achieved, and the guide wheel 23 and the lower guide rod 41 can also use self-lubricating materials, so that lubricating oil can be omitted, further improving the cleanliness of the module.

[0041] In the above embodiment, if the guide wheel 23 is disturbed by external temperature and expands too much, it will affect the height of the rotation axis of the guide wheel 23, that is, affect the actual position accuracy of the slide 2. For this reason, in this embodiment, the lower guide rod 41 is set to be height-adjustable and a height adjustment structure is used for adjustment. For details, refer to the attached manual. Figure 5The height adjustment structure includes a lifting block 43, and a slot is provided at a position of the motor base 1 corresponding to the bottom of the lower guide rod 41. The lifting block 43 is slidably installed in the slot, and an inclined matching surface is provided between the top of the lifting block 43 and the bottom of the lower guide rod 41. A tightening screw 44 is rotatably provided in the lifting block 43, and the tightening screw 44 is threadedly inserted into the motor base 1, and then by rotating the tightening screw 44, the insertion depth of the lifting block 43 can be adjusted, and then the height of the axis of the guide wheel 23 can be fine-tuned. On the one hand, the lower guide rod 41 can be fine-tuned according to different ambient temperatures to improve the adaptation accuracy of the module. On the other hand, when the module is actually assembled, the height of the lower guide rod 41 can be adjusted to determine the initial accuracy and adjust the preload force between the guide wheel 23 and the lower guide rod 41.

[0042] It should be noted that the specific principles and structures of the stator 12 and the mover 22 in this embodiment are commonly used technical solutions in the field of linear motors, and will not be explained in detail in this embodiment. The closed structure 3 can use two sets of accordion cover structures, and the two sets of accordion covers are respectively arranged at both ends of the slide 2 to cover the opening area on the top of the motor base 1. A steel belt structure can also be set for sealing. The above are all conventional protection measures for linear motor modules and guide rail structures in industrial production, and will not be explained in detail in this embodiment.

[0043] In the above embodiment, although the guide wheel 23 and the guide rod assembly 4 are arranged on the outside of the motor base 1 to avoid the influence of the internal temperature of the motor base 1, the protection of the closed structure 3 is lacking at this time. In order to reduce the influence of dust or debris in the external environment on the cooperation between the guide wheel 23 and the lower guide rod 41, a blocking assembly 5 can also be arranged between the side plate 21 and the guide rail groove 11. Since the guide wheel 23 on the inner side of the lower guide rod 41 is shielded and protected, for example, the blocking assembly 5 includes a blocking block 51. Figure 2 and Figure 3 The blocking blocks 51 are provided in two groups, and the two groups of blocking blocks 51 are respectively fixedly mounted at the two ends of the side plate 21, and the blocking blocks 51 extend into the interior of the guide rail groove 11 and are adapted to the shape of the guide rail groove 11. Gaps are left between the blocking blocks 51 and the inner wall of the guide rail groove 11 and between the lower guide rod 41 and the upper guide rod 42, so that the guide wheel 23 is almost in a closed space, providing protection for the guide wheel 23.

[0044] In addition, this embodiment also provides another blocking component 5. For details, refer to the attached manual. Figures 6 to 8The blocking assembly 5 includes a belt structure 52, and a plurality of sets of external guide wheels 53 are rotatably arranged on one side of the side plate 21 corresponding to the guide groove 11. A through channel is arranged inside the side plate 21, and a plurality of sets of internal guide wheels 54 are rotatably installed in the through channel. The belt structure 52 is sleeved on the outside of the external guide wheel 53 and the internal guide wheel 54 to form a belt assembly, and the portion of the belt structure 52 supported by the external guide wheel 53 is arranged in contact with the inner wall of the stator 12, and each set of guide wheels 23 is located on the inner side of the belt structure 52. A gap is arranged between the top and bottom of the belt structure 52 and the top and bottom of the guide groove 11, and the gap is the upper guide rod 42. And the protruding height of the lower guide rod 41 relative to the top and bottom walls of the stator 12, that is, the belt structure 52 does not actually contact the lower guide rod 41 and the upper guide rod 42 to avoid interference. The top and bottom of the belt structure 52 are fixedly installed with a cleaning brush structure 521, and the above-mentioned gap is filled by the cleaning brush structure 521. The cleaning brush structure 521 can be a felt patch structure or a brush structure, etc. On the one hand, the cleaning brush structure 521 can produce adaptive changes when it contacts the lower guide rod 41 or the upper guide rod 42. At the same time, the structure of the dense cleaning brush structure 521 can also form a blocking structure, so that the inner and outer spaces of the side panel 21 are closed and shielded and protected.

[0045] It should be noted that the arrangement of the belt structure 52, in addition to shielding and protecting the guide wheel 23, enables the belt structure 52 to be in close contact with the inner wall of the guide rail groove 11 due to the support of the external guide wheel 53, and can support and position the side plate 21 in the lateral direction, thereby ensuring that the groove of the guide wheel 23 and the lower guide rod 41 are accurately matched, avoiding the lateral force generated by the module during operation, which causes the groove of the guide wheel 23 and the lower guide rod 41 to deviate and increase the pressure on one side, causing the side of the lower guide rod 41 to be worn, further improving the module. The use accuracy of the group, secondly, during the actual operation of the slide 2, the guide wheel 23 can also move like a track, and when it moves, the brushing structure 521 can brush the surface of the lower guide rod 41 and the upper guide rod 42, compared with the pre-cleaning (sweeping or wiping) of the surface of the lower guide rod 41 and the upper guide rod 42, to avoid external debris adhering to the surface of the lower guide rod 41 or the upper guide rod 42 and then entering the matching area between the guide wheel 23 and the lower guide rod 41 and the upper guide rod 42, further improving the cleanliness of the module.

[0046] For further information, please refer to the attached manual. Fig.10 and Fig.11In order to ensure effective cleaning of the cleaning structure 521, the present embodiment further provides the following technical solutions. Specifically, scraper assemblies 6 are provided at positions corresponding to the top and bottom of the belt structure 52 in the through channel of the side plate 21, and the scraper assemblies 6 at the top and bottom of the belt structure 52 are provided in at least two groups, each group of scraper assemblies 6 is composed of an elastic scraper plate 61 and a semi-enclosed docking plate 62, wherein the semi-enclosed docking plate 62 is fixedly installed in the through channel of the side plate 21, and one end of the semi-enclosed docking plate 62 close to the elastic scraper plate 61 is provided in parallel with the end face of the cleaning structure 521, and is close to the cleaning structure 5 21, the elastic scraper 61 is rotatably installed in the through channel of the side plate 21, and an elastic member (such as a torsion spring or a spring) is arranged between the elastic scraper 61 and the side plate 21, and the elastic member is used to drive the movable end of the elastic scraper 61 to move toward the root of the cleaning structure 521, and the end of the semi-enclosed docking plate 62 close to the cleaning structure 521 is adapted to the movable end of the elastic scraper 61, wherein the two groups of scraper assemblies 6 at the top of the belt structure 52 and the two groups of scraper assemblies 6 at the bottom of the belt structure 52 are symmetrically arranged, that is, the arrangement directions of the elastic scrapers 61 in the two groups of scraper assemblies 6 are opposite. For details, refer to the attached manual Fig.11 When the belt structure 52 carries the cleaning structure 521 and moves in a certain direction, the elastic scraper 61 arranged away from the moving direction will press and flip the elastic scraper 61 because its end contacts the cleaning structure 521 and is resisted by the cleaning structure 521, so that the elastic scraper 61 squeezes the cleaning structure 521 and scrapes out the debris cleaned (or wiped) on the surface of the cleaning structure 521. The elastic scraper 61 arranged in the same moving direction as above can be lifted up by the cleaning structure 521 and will not cause any obstruction. When the belt structure 52 moves, When the directions are opposite, the two sets of elastic scrapers 61 have opposite actions, the same as the above principle. The elastic scraper 61 that has scraped out the debris is flipped upward and aligned with the semi-enclosed docking plate 62, so that the scraped debris can be stored in the space formed by the elastic scraper 61 and the semi-enclosed docking plate 62. At the same time, corresponding storage spaces or lead-out channels can be set in the side panels 21 corresponding to the positions of the elastic scraper 61 and the semi-enclosed docking plate 62 to store or lead out the debris, thereby further improving the cleaning (or wiping) effect of the cleaning structure 521.

[0047] Refer to the instruction manual Fig. 9 and Fig.10In this embodiment, a heat exchange cavity 211 is provided inside the side plate 21, and a heat sink 212 (metal sheet structure, such as a copper sheet) is provided in the inner wall of the heat exchange cavity 211 and is arranged parallel to the movement direction of the slide 2. The bottom of the heat sink 212 extends out of the side plate 21, and then with the help of the movement of the slide 2 and the heat conduction of the heat sink 212, the heat in the heat exchange cavity 211 can be dispersed to the outside to achieve a certain degree of heat dissipation. Among them, a plurality of flow-carrying sheets 522 are fixedly connected to the inner wall of the belt structure 52, and the heat exchange cavity 211 is arranged corresponding to the flow-carrying sheets 522. Furthermore, during actual use, the movement of the belt structure 52 enables the flow-carrying plate 522 to drive the air in the internal space of the belt structure 52 to flow, and when the air follows the flow-carrying plate 522 to reach the vicinity of the heat exchange chamber 211, a certain heat exchange can be performed, forming a certain cooling effect, thereby ensuring effective protection for the guide wheel 23 while achieving corresponding heat dissipation, especially when the module is working at high intensity, the temperature increase formed by the internal energy converted from part of the mechanical energy in the mechanical movement can perform a certain heat dissipation, further improving the stability of the module use.

[0048] Based on the above implementation, this embodiment further provides a brake assembly for assisting the slide 2 to stop suddenly. Specifically, the brake assembly is arranged between the side plate 21 and the belt structure 52. The brake assembly includes a brake block 7. A protruding structure extending into the guide rail groove 11 is arranged on the inner side of the side plate 21. The brake block 7 is slidably installed in the side plate 21. An electromagnetic coil 72 is arranged in the side plate 21. A permanent magnet 71 is fixedly installed on one side of the brake block 7 corresponding to the electromagnetic coil 72. Specifically, when braking is needed, the electromagnetic coil 72 can be energized to push the brake block 7 out to press the belt structure 52 and the motor base 1. Since the belt structure 52 itself has a certain flexibility, such as a rubber structure, it can generate a large resistance when squeezed, which can improve the braking effect. In addition, this embodiment applies the brake between the side plate 21 and the motor base 1, which is different from the traditional method of setting the brake on the guide rail (corresponding to between the guide wheel 23 and the lower guide rod 41 of this embodiment), which can effectively reduce the brake wear and ensure the service life of the lower guide rod 41.

[0049] It should be noted that an elastic structure can also be set between the brake block 7 and the side plate 21. When the electromagnetic coil 72 is not energized, the brake block 7 is driven away from the belt structure 52. The electromagnetic coil 72 can also be energized in the reverse direction to attract the permanent magnet 71 and move the brake block 7 away from the built-in guide wheel 54 to avoid interfering with the normal operation of the module. The electromagnetic drive brake technology is mature, and the specific principles and structures are not repeated in this embodiment.

[0050] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A clean linear motor module, comprising a motor base (1) and a slide (2), wherein a stator (12) is arranged in the inner cavity of the motor base (1), a mover (22) is arranged at the bottom of the slide (2), a closed structure (3) is arranged between the slide (2) and the inner cavity of the motor base (1), guide rail grooves (11) are arranged on both sides of the motor base (1), and side plates (21) are fixedly installed on both sides of the slide (2), characterized in that: A guide rod assembly (4) is arranged on the inner side of the guide rail groove (11), and a guide wheel (23) extending into the guide rail groove (11) and adapted to the guide rod assembly (4) is arranged on the inner side of the side plate (21); The guide wheel (23) is rotatably mounted on the side plate (21); the guide rod assembly (4) comprises a lower guide rod (41) and an upper guide rod (42); the lower guide rod (41) is slidably mounted in the bottom wall of the guide rail groove (11); the upper guide rod (42) is fixedly mounted in the top wall of the guide rail groove (11); the guide wheel (23) and the lower guide rod (41) are rollingly fitted; a gap is left between the guide wheel (23) and the upper guide rod (42); a height adjustment structure is provided at the bottom of the lower guide rod (41); the height adjustment structure is used to adjust the height of the lower guide rod (41); a blocking assembly (5) is provided between the side plate (21) and the guide rail groove (11); The blocking assembly (5) comprises blocking blocks (51), the blocking blocks (51) being arranged in two groups, the two groups of blocking blocks (51) being respectively fixedly mounted on the two ends of the side plate (21), and the blocking blocks (51) extending into the interior of the guide rail groove (11), and gaps being left between the blocking blocks (51) and the inner wall of the guide rail groove (11) and the lower guide rod (41) and the upper guide rod (42); The blocking assembly (5) comprises a belt structure (52), a plurality of groups of external guide wheels (53) are rotatably arranged on one side of the side plate (21) corresponding to the guide rail groove (11), a through channel is arranged inside the side plate (21), and a plurality of groups of internal guide wheels (54) are rotatably installed in the through channel, the belt structure (52) is sleeved on the outside of the external guide wheel (53) and the internal guide wheel (54), the portion of the belt structure (52) supported by the external guide wheel (53) is arranged in contact with the inner wall of the stator (12), and each group of the guide wheels (23) is located on the inner side of the belt structure (52); Gaps are provided between the top and bottom of the belt structure (52) and the top and bottom of the guide rail groove (11), and cleaning structures (521) are fixedly mounted on the top and bottom of the belt structure (52).

2. A clean linear motor module according to claim 1, characterized in that: The height adjustment structure comprises a lifting block (43); a slot is arranged at a position of the motor base (1) corresponding to the bottom of the lower guide rod (41); the lifting block (43) is slidably installed in the slot; an inclined matching surface is arranged between the top of the lifting block (43) and the bottom of the lower guide rod (41); a tightening screw (44) is rotatably arranged in the lifting block (43); and the tightening screw (44) is threadedly inserted into the motor base (1).

3. A clean linear motor module according to claim 2, characterized in that: The circumferential surface of the guide wheel (23) is provided with grooves which are mutually matched with the lower guide rod (41) and the upper guide rod (42); the grooves of the guide wheel (23) are mutually matched with the lower guide rod (41) and the upper guide rod (42) respectively.

4. A clean linear motor module according to claim 3, characterized in that: Scraper assemblies (6) are provided at positions corresponding to the top and bottom of the belt structure (52) in the through channel of the side plate (21), and the scraper assemblies (6) are composed of an elastic scraper plate (61) and a semi-enclosed docking plate (62). The semi-enclosed docking plate (62) is fixedly installed in the through channel of the side plate (21), and one end of the semi-enclosed docking plate (62) close to the elastic scraper plate (61) is arranged parallel to the end surface of the cleaning structure (521). The elastic scraper plate (61) is rotatably installed in the through channel of the side plate (21), and one end of the semi-enclosed docking plate (62) close to the cleaning structure (521) is adapted to the movable end of the elastic scraper plate (61).

5. A clean linear motor module according to claim 4, characterized in that: An elastic member is provided between the elastic scraper (61) and the side plate (21), and the elastic member is used to drive the movable end of the elastic scraper (61) to move toward the root of the cleaning structure (521). The scraper assemblies (6) at the top and bottom of the belt structure (52) are both provided in at least two groups, and the two groups of scraper assemblies (6) at the top of the belt structure (52) and the two groups of scraper assemblies (6) at the bottom of the belt structure (52) are both symmetrically provided.

6. A clean linear motor module according to claim 5, characterized in that: A heat exchange cavity (211) is arranged inside the side plate (21), a heat dissipation plate (212) arranged parallel to the movement direction of the slide seat (2) is arranged in the inner wall of the heat exchange cavity (211), the bottom of the heat dissipation plate (212) extends out of the side plate (21), a plurality of flow-carrying plates (522) are fixedly connected to the inner wall of the belt structure (52), and the heat exchange cavity (211) is arranged corresponding to the flow-carrying plates (522).

7. A clean linear motor module according to claim 6, characterized in that: A brake assembly is arranged between the side plate (21) and the belt structure (52), and the brake assembly includes a brake block (7). A protruding structure extending into the guide rail groove (11) is arranged on the inner side of the side plate (21), and the brake block (7) is slidably installed in the protruding structure of the side plate (21). An electromagnetic coil (72) is arranged in the side plate (21), and a permanent magnet (71) is fixedly installed on one side of the brake block (7) corresponding to the electromagnetic coil (72).

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