A mover protection component and linear motor module

Abstract

The present invention relates to the technical field of linear motors, and discloses a mover protection component and a linear motor module. The mover protection component comprises a dust removal module and a switching module. The dust removal module comprises a duct fan. Both ends of the duct fan are connected to each other and are provided with air ducts. The ends of the air ducts are provided with air outlets. The air flow direction at the air outlet is perpendicular to the sliding direction of the mover. The switching module comprises an electric push rod and a plug. The plug is slidably matched with the air outlet. The electric push rod pulls the plug to slide. The control end of the duct fan is matched with the control end of the electric push rod. The protection of the mover by the present invention cleverly utilizes the effect of wind force. It is no longer a passive barrier, but actively removes dust and impurities within the movement range of the mover through the suction effect. On the back side of the movement direction of the mover, the exhaust airflow generated generates an air curtain with vertical downward airflow at a certain distance from the tail of the mover to prevent debris from approaching the mover.

Description

Technical Field

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

[0002] A linear motor is a transmission device that converts electrical energy directly into linear motion mechanical energy without any intermediate structural conversion. A linear motor is also called a linear motor, linear motor or linear motor.

[0003] The basic structure of a linear motor includes a stator, a mover, and a drive system. The working principle of a linear motor is based on the principle of electromagnetic induction. When the current of the drive system passes through the winding of the stator, a magnetic field is generated. This magnetic field interacts with the permanent magnet or electromagnet on the mover to generate a pair of forces in opposite directions, pushing the mover to move in a straight line. By controlling the current direction and frequency of the stator winding, the speed and direction of the mover can be precisely controlled.

[0004] When linear motors are actually used in the field of machining, they provide precise linear motion control for the machining parts. However, in actual use, dust, workpiece debris and other debris generated by machining are easy to splash and interfere with the movement of the mover. Therefore, the mover needs to be protected against debris. However, the existing protection measures for the mover are committed to improving the sealing performance of the mover. For example, multiple shells are set around the outer periphery of the mover to form protection, which will bring the following disadvantages:

[0005] 1. When dust, workpiece debris and other debris cover the moving base (i.e., stator) of the mover, it only improves the sealing performance of the mover. The sealing protection part of the mover will still be contaminated by debris during the movement. With the increase of heat generation and impact during movement, the sealing performance will decrease, and the debris will still easily invade the mover. That is, the method of improving the sealing performance of the mover cannot effectively isolate the influence of debris in the long term;

[0006] Second, setting a sealing protection part for the mover is equivalent to wrapping the mover, which obviously hinders the air circulation around the mover, causing the mover to overheat and affecting the efficiency and life of the motor. Summary of the invention

[0007] The present invention provides a mover protection component and a linear motor module, which solve the technical problem in the related art that only improving the sealing performance of the mover cannot effectively isolate the influence of debris for a long time.

[0008] The present invention provides a mover protection assembly, comprising a dust removal module and a switching module, wherein the dust removal module comprises a duct fan, both ends of the duct fan are connected to each other and are provided with air ducts, the ends of the air ducts are provided with air outlets, the air flow direction of the air outlet is perpendicular to the sliding direction of the mover, the switching module comprises an electric push rod and an insert, the insert is slidably matched with the air outlet, the electric push rod pulls the insert to slide, and the control end of the duct fan is matched with the control end of the electric push rod;

[0009] When the movable member slides, the duct fan runs, generating a suction effect at the air outlet on the moving side of the movable member, and at the same time generating an exhaust effect at the air outlet away from the moving side of the movable member, and the electric push rod runs synchronously, driving the insert at the air outlet on the suction side to slide out, and driving the insert at the air outlet on the exhaust side to be pressed in.

[0010] As a further solution of the present invention: the dust removal module also includes a flow collecting cover, which is connected between the pipeline fan port and the air duct, and the flow collecting cover is in a trumpet shape with a diameter decreasing from the pipeline fan port to the air duct opening.

[0011] As a further solution of the present invention: the dust removal module also includes a filter unit, the filter unit is connected to the air duct, a filter element is movably arranged in the filter unit, and a top cover is detachably installed on the filter unit.

[0012] As a further solution of the present invention: the air outlet is in the shape of a rectangular box with its opening facing downward, and the width of the air outlet is greater than the width of the moving member.

[0013] As a further solution of the present invention: the switching module also includes a cross bar and a connecting frame, the output end of the electric push rod is fixedly connected to the cross bar, the end of the cross bar is fixedly installed with the connecting frame, the bottom of the connecting frame is fixedly installed with an insert, and ventilation holes are evenly opened on the insert.

[0014] As a further solution of the present invention: the control end of the duct fan and the control end of the electric push rod are synchronously controlled by a controller.

[0015] A linear motor module, using the above-mentioned mover protection assembly, includes a base, a slide rail, an end cover, a slider, a stator component, a mover component and a load, wherein the slide rail is symmetrically fixedly installed on the top of the base, the end covers are fixedly arranged at both ends of the base, a stator component is laid in the base along the extension direction of the slide rail, the mover component and the stator component are slidably matched, the mover component is fixedly connected to the load, and the slider is symmetrically fixedly arranged on the bottom end of the load, and the slider and the slide rail are slidably matched.

[0016] The beneficial effects of the present invention are:

[0017] The protection of the mover by the present invention cleverly utilizes the effect of wind force. It is no longer a passive barrier, but actively removes dust and impurities within the moving range of the mover through the suction effect. The effect is to remove dust and impurities on the track before the mover slides, which directly prevents the mover from being contaminated by debris during movement. On the back side of the moving direction of the mover, the exhaust airflow generated generates an air curtain that flows vertically downward at a certain distance from the tail of the mover, thereby preventing debris from approaching the mover.

[0018] When the present invention is protecting the mover, the airflow acts near the end of the mover, which can not only remove and isolate impurities, but also significantly accelerate the air circulation around the mover, improve the heat dissipation effect of the mover, thereby avoiding the reduction of the efficiency and life of the motor due to overheating of the mover. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the linear motor module proposed by the present invention;

[0020] Figure 2 It is a schematic diagram of the installation structure of the mover protection assembly relative to the linear motor module proposed by the present invention;

[0021] Figure 3 It is a schematic diagram of the side view structure of the mover protection assembly proposed by the present invention;

[0022] Figure 4 It is a schematic diagram of the overall structure of the mover protection assembly proposed by the present invention;

[0023] Figure 5 1. is a schematic diagram of the detailed structure of the mover protection assembly proposed by the present invention when viewed from above;

[0024] Figure 6 It is a schematic diagram of the partial decomposition structure of the mover protection assembly proposed in the present invention.

[0025] In the figure: 10, base; 11, slide rail; 12, end cover; 13, slider; 20, stator; 30, mover; 40, load; 50, dust removal module; 501, duct fan; 502, collector; 503, air duct; 504, air outlet; 505, filter unit; 506, top cover; 507, filter element; 60, switching module; 601, electric push rod; 602, cross bar; 603, connecting frame; 604, plug; 605, vent; 7, controller. DETAILED DESCRIPTION

[0026] The subject matter described herein will now be discussed with reference to example implementations. It should be understood that the discussion of these implementations is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Various examples may omit, replace, or add various processes or components as needed. In addition, the features described in some examples may also be combined in other examples.

[0027] The present invention discloses a mover protection component, such as Figure 1 - Figure 6 As shown, when the movable member 30 slides, dust prevention treatment is performed on both ends thereof, including a dust removal module 50 and a switching module 60, the dust removal module 50 includes a duct fan 501, both ends of the duct fan 501 are connected to each other and are provided with an air duct 503, an end of the air duct 503 is provided with an air outlet 504, the air flow direction of the air outlet 504 is perpendicular to the sliding direction of the movable member 30, the switching module 60 includes an electric push rod 601 and an insert 604, the insert 604 is slidably matched with the air outlet 504, the electric push rod 601 pulls the insert 604 to slide, and the control end of the duct fan 501 is matched with the control end of the electric push rod 601;

[0028] When the movable member 30 slides, the duct fan 501 runs, generating a suction effect at the air outlet 504 on the moving side of the movable member 30, and at the same time generating an exhaust effect at the air outlet 504 on the moving side away from the movable member 30, and the electric push rod 601 runs synchronously, driving the insert 604 at the air outlet 504 on the suction side to slide out, and at the same time driving the insert 604 at the air outlet 504 on the exhaust side to be pressed in.

[0029] The movable member protection assembly provided by the present invention acts synchronously when the movable member 30 moves, and the duct fan 501 runs to convey airflow through the air duct 503, wherein an intake airflow is generated at the air outlet 504 on the moving side of the movable member 30, and dust and debris on the movable member 30 are sucked away before the movable member 30 contacts the sliding part in front, and an exhaust airflow is generated at the air outlet 504 on the moving side away from the movable member 30. Through the restriction provided by the switching module 60, the exhaust airflow generates an air curtain that flows vertically downward at a certain distance from the rear of the movable member 30, thereby preventing debris from approaching the movable member 30.

[0030] When the moving direction of the moving component 30 is changed, the duct fan 501 is controlled to reverse and the switching module 60 is adjusted accordingly, so that the positions generating the suction airflow and the exhaust airflow are switched to adapt.

[0031] Compared with the traditional means of wrapping and protecting the mover to improve the sealing performance of the mover, the protection of the present invention cleverly utilizes the effect of wind power and has the following advantages:

[0032] On the one hand, it is no longer a passive barrier, but actively removes dust and impurities within the moving range of the movable component 30 through the suction effect, and the dust and impurities on the track are removed before the movable component 30 slides, which directly prevents the movable component 30 from being contaminated by foreign matter during movement. On the back side of the moving direction of the movable component 30, the exhaust airflow generated generates an air curtain that flows vertically downward at a certain distance from the tail of the movable component 30, thereby preventing foreign matter from approaching the movable component 30.

[0033] On the other hand, the airflow acting near the end of the movable component 30 can not only remove and isolate impurities, but also significantly accelerate the air circulation around the movable component 30, thereby improving the heat dissipation effect of the movable component 30, thereby avoiding the efficiency and life of the motor being reduced due to overheating of the movable component 30.

[0034] The dust removal module 50 further includes a flow collecting cover 502 , which is connected between the port of the duct fan 501 and the air duct 503 , and is in a trumpet shape with a diameter that decreases from the port of the duct fan 501 to the port of the air duct 503 .

[0035] The collecting hood 502 utilizes its special trumpet-shaped shape to increase the velocity of the airflow by compressing the airflow through the space, thereby improving the ability to absorb debris and the density of the generated air curtain.

[0036] The dust removal module 50 further includes a filter unit 505 , which is connected to the air duct 503 . A filter element 507 is movably provided in the filter unit 505 , and a top cover 506 is detachably mounted on the filter unit 505 .

[0037] The filter unit 505 is adapted to the suction effect on dust. After the dust is sucked into the air duct 503, the filter element 507 is used to intercept it in the filter unit 505 to ensure the cleanliness of the air flow at the exhaust end. After the dust is enriched to a certain extent on the filter element 507, the filter unit 505 is opened by removing the top cover 506 to replace the filter element 507.

[0038] The air outlet 504 is in a rectangular box shape with an opening facing downward, and the width of the air outlet 504 is greater than the width of the moving member 30 .

[0039] The width of the air outlet 504 is greater than that of the movable member 30, so that both the air suction and dust removal function and the exhaust and dust blocking function can completely cover the end of the movable member 30, thereby achieving effective isolation of the movable member 30 from impurities.

[0040] The switching module 60 also includes a cross bar 602 and a connecting frame 603. The output end of the electric push rod 601 is fixedly connected to the cross bar 602. The end of the cross bar 602 is fixedly installed with the connecting frame 603. The bottom of the connecting frame 603 is fixedly installed with an insert 604, and the insert 604 is evenly provided with ventilation holes 605.

[0041] The function of the switching module 60 is to cooperate with the movable component 30 to switch between the exhaust air outlet 504 and the suction air outlet 504 after the sliding direction is changed. In the switching module 60, the electric push rod 601 pulls the cross bar 602, thereby driving the connecting frames 603 on both sides to move. When the plug 604 on one side slides out of the air outlet 504, the plug 604 on the other side is immediately pressed in. The air outlet 504 on the side where the plug 604 slides out is used as an air outlet for dust suction, and the air outlet 504 on the side where the plug 604 is pressed in is used as an air outlet for generating an air curtain. The generation of the air curtain is achieved by using the uniform ventilation holes 605 on the plug 604.

[0042] The control end of the duct fan 501 and the control end of the electric push rod 601 are synchronously controlled by the controller 7 .

[0043] Here, the controller 7 controls the output switching of the duct fan 501 and the extension and shortening adaptation of the electric push rod 601, which belongs to the prior art and will not be described in detail here.

[0044] A linear motor module, using the above-mentioned mover protection assembly, includes a base 10, a slide rail 11, an end cover 12, a slider 13, a stator component 20, a mover component 30 and a load 40, wherein the slide rail 11 is symmetrically fixedly installed on the top of the base 10, and the end covers 12 are fixedly arranged at both ends of the base 10. The stator component 20 is laid in the base 10 along the extension direction of the slide rail 11, and the mover component 30 is slidably matched with the stator component 20. The mover component 30 is fixedly connected to the load 40, and the slider 13 is symmetrically fixedly arranged on the bottom end of the load 40, and the slider 13 is slidably matched with the slide rail 11.

[0045] Working principle: When the moving part 30 of the present invention slides, the duct fan 501 runs, and a suction effect is generated at the air outlet 504 on the moving side of the moving part 30, and an exhaust effect is generated at the air outlet 504 away from the moving side of the moving part 30. The electric push rod 601 runs synchronously, driving the insert 604 at the air outlet 504 on the suction side to slide out, and driving the insert 604 at the air outlet 504 on the exhaust side to press in, wherein a suction airflow is generated at the air outlet 504 on the moving side of the moving part 30, and the moving part 30 contacts the air outlet 504. The dust and debris on the front sliding part are sucked away, and an exhaust airflow is generated at the air outlet 504 on the side away from the moving side of the movable part 30. Through the restriction provided by the switching module 60, the exhaust airflow generates an air curtain with a vertical downward flow at a certain distance from the rear of the movable part 30, which blocks the debris from approaching the movable part 30. When the moving direction of the movable part 30 changes, the duct fan 501 is controlled to reverse and the switching module 60 is adjusted accordingly, so as to drive the parts generating the suction airflow and the exhaust airflow to be exchanged to adapt to the change.

[0046] The above describes an embodiment of the present invention, but this embodiment is not limited to the above-mentioned specific implementation mode. The above-mentioned specific implementation mode is merely illustrative and not restrictive. Under the guidance of this embodiment, ordinary technicians in this field can also make more forms of equivalent embodiments, all of which are within the protection of this embodiment.

Claims

1. A mover protection assembly, characterized in that: The invention comprises a dust removal module (50) and a switching module (60), wherein the dust removal module (50) comprises a duct fan (501), both ends of the duct fan (501) are connected to each other and are provided with an air duct (503), an air outlet (504) is provided at the end of the air duct (503), and the air flow direction at the air outlet (504) is perpendicular to the sliding direction of the moving component (30), the switching module (60) comprises an electric push rod (601) and an insert (604), the insert (604) is slidably matched with the air outlet (504), the electric push rod (601) pulls the insert (604) to slide, and the control end of the duct fan (501) is matched with the control end of the electric push rod (601); When the movable member (30) slides, the duct fan (501) operates to generate an air suction effect at the air outlet (504) on the moving side of the movable member (30), and at the same time, generates an air discharge effect at the air outlet (504) away from the moving side of the movable member (30); the electric push rod (601) operates synchronously to drive the insert (604) at the air outlet (504) on the suction side to slide out, and at the same time, drive the insert (604) at the air outlet (504) on the exhaust side to be pressed in; The switching module (60) further comprises a crossbar (602) and a connecting frame (603); the output end of the electric push rod (601) is fixedly connected to the crossbar (602); the end of the crossbar (602) is fixedly mounted with the connecting frame (603); the bottom of the connecting frame (603) is fixedly mounted with an insert (604); and the insert (604) is evenly provided with ventilation holes (605); The air outlet (504) is in the shape of a rectangular box with an opening facing downward, and the width of the air outlet (504) is greater than the width of the moving component (30).

2. A mover protection assembly according to claim 1, characterized in that: The dust removal module (50) further comprises a flow collecting cover (502), wherein the flow collecting cover (502) is connected between the port of the duct fan (501) and the air duct (503), and the flow collecting cover (502) is in a trumpet shape with a diameter decreasing from the port of the duct fan (501) to the port of the air duct (503).

3. A mover protection assembly according to claim 2, characterized in that: The dust removal module (50) further comprises a filter unit (505), wherein the filter unit (505) is connected to the air duct (503), a filter element (507) is movably arranged in the filter unit (505), and a top cover (506) is detachably mounted on the filter unit (505).

4. A mover protection assembly according to claim 3, characterized in that: The control end of the duct fan (501) and the control end of the electric push rod (601) are synchronously controlled via a controller (7).

5. A linear motor module, using the mover protection assembly according to any one of claims 1 to 4, characterized in that: The invention comprises a base (10), a slide rail (11), an end cover (12), a slider (13), a stator component (20), a mover component (30) and a load (40); the slide rail (11) is symmetrically fixedly mounted on the top of the base (10); the end covers (12) are fixedly arranged at both ends of the base (10); the stator component (20) is laid in the base (10) along the extension direction of the slide rail (11); the mover component (30) is slidably matched with the stator component (20); the mover component (30) is fixedly connected to the load (40); the slider (13) is symmetrically fixedly arranged at the bottom end of the load (40); the slider (13) is slidably matched with the slide rail (11).

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