TWI535154B - Slide-block-type shaft linear motor platform - Google Patents

Description

Slider type linear motor platform

This creation is related to electric motors, especially regarding a slider-type linear motor platform.

The rod-shaped motor is generally a linearly extending rod-shaped stator as a shaft, and is coaxially slidably mounted on the stator by a hollow tubular mover, by the magnetic field between the mover and the stator, The mover is linearly reciprocated in the direction of the rod axis of the stator, thereby providing externally reciprocating driving power, and in the normal use of the rod motor, two piers are separated from the stator. The two ends of the rod shaft are arranged in a state in which the stator is bridged between the piers and the displacement stroke range of the mover is restricted.

In the conventional rod motor as the power source, while driving the driven object, it is often accompanied by the guidance and positioning of the driven object movement, so that in the prior art, there is another such as linear Conventional techniques such as guide rails provide guidance and positioning for the passive displacement of the driven object, so that it can meet the needs of the industry.

However, because the prior art technology requires the use of a different technology such as a rod motor and a linear guide rail, the purpose of powering and guiding the driven object is achieved, and the equipment cost and maintenance cost required are relatively increased. Therefore, the conventional technique of the linear guiding device (1) as shown in the first and second figures is disclosed, which is to bridge a rod-shaped stator (2) to a housing (3). Middle, and a slider (4) is slidably disposed on the stator (2), and two sides of the mover (4) are disposed on the sides of the mover (4) corresponding to each other with the opening facing each other, and the majority of the spheres ( 6) rolling on both sides of the mover (4) and the inner side of the open end of each of the rails (5), whereby the mover (4) is reciprocally displaced along the stator The ball (6) and the rail (5) are rolled to maintain the correctness of the direction of displacement of the mover (4).

In order to avoid the situation in which the stator (2) is drooped due to the action of gravity or magnetic force, the stator (2) has an elliptical cross section and a long axis of the ellipse in the prior art. The direction and the direction of gravity are parallel to each other to increase the rigidity of the stator (2) to reduce the possibility of stator deformation.

It is a technical means to set the stator section to an elliptical shape, which can strengthen the mechanical strength in a specific direction. However, compared with the processing of the conventional circular section, it is a technique that increases the difficulty of manufacturing and processing. The resulting increased mechanical strength is also limited, and it is still difficult to apply to a rod motor with a large stroke length. Furthermore, the linear guiding device (1) provides a specific technical content for integrating the rod motor and the linear guide. However, the solution to the possible negative effects of the thermal energy generated by the operation of the motor on the linear guide rails is such that the linear guide device (1) is not ideal for specific industrial applications and the reliability is not good.

Accordingly, the main object of the present invention is to provide a slider-type rod-shaped linear motor platform that allows air to convect air between the heat source and the outside to reduce the possibility of thermal energy deformation to the slider to ensure operation. Accuracy, and to avoid the performance of the motor is reduced by the influence of thermal energy.

Therefore, in order to achieve the above object, the slider type linear motor platform provided by the present invention comprises a base member having two pier portions spaced apart from each other, and two straight lines extending. The guide rails are located parallel to each other and spaced apart from each other between the pier portions; the stator member has a tubular stator seat which is bridged between the pier portions at both ends of the pipe shaft and makes the pipe shaft parallel a long axis of each of the guide rails; a moving member having a mover seat disposed on the stator base and interposed between the guide rails, and a tubular coil portion disposed in the mover seat The coaxial sliding body is disposed on the stator base, and the two annular end bodies are respectively located at two ends of the tube shaft of the coil portion, and the two inflow spaces are respectively disposed on the end bodies, and are interposed between the coil portions and the coil portion The air gap space between the stator seats is connected to each other; a plurality of rolling elements are arranged between the mover seat and each of the guide rails.

In order to form each of the inflow spaces, the shape or the structural change of the corresponding parts is achieved, and specifically, each end system has a ring body, and the ring body is provided with one end on the axial end. a push-out outer port having an inner and outer diameter gradually increasing, and the outer port is opposite to the coil portion, and the outer port forms one part of the inflow space; or alternatively, each end system has a ring The body has at least one groove recessed on the inner annular surface of the ring body and extends in the axial direction to both ends, and the groove forms the inflow space.

In addition, in order to facilitate assembly, the mover seat further comprises a hollow main body, the coil part and each end body are accommodated in the inner space, and the two end body parts are respectively disposed on the main seat body. side.

Each of the end systems is respectively located between the main seat and the corresponding end seat.

The mover seat has a spindle hole disposed in the main body, and is recessed and recessed in the hole wall of the spindle hole and extends along the hole axis.

Wherein, the mover seat further comprises a two-end shaft hole, which is disposed on each end seat and coaxially communicates with the spindle hole.

Wherein, the aperture diameter of each of the end shaft holes is smaller than the aperture of the spindle hole.

Each of the end shaft holes is in communication with each of the inflow spaces.

Furthermore, in order to avoid the impact of the impact on the stability of the components, the stator member may further comprise two elastic support collars respectively sleeved on the two ends of the tube shaft of the stator seat to provide cushioning and shock absorption. The effect of the person.

(1)‧‧‧Line guide

(2) ‧ ‧ stator

(3)‧‧‧Shell

(4) ‧‧‧ movers

(5) ‧ ‧ rails

(6) ‧‧‧ sphere

(10)‧‧‧Slide type rod linear motor

(20) ‧ ‧ base parts

(21) ‧‧‧ bottom

(22)‧‧‧ Guide rails

(23)‧‧‧dun

(24)‧‧‧ Holes

(30)‧‧‧ stator parts

(31) ‧‧ ‧ Stator base

(32)‧‧‧elastic support collar

(321)‧‧‧ Small outer diameter end

(322)‧‧‧ Large outer diameter end

(40) ‧‧‧ moving parts

(41) ‧‧‧Motion

(411)‧‧‧Main seat

(412)‧‧‧ spindle hole

(413) ‧ ‧ concave

(414) (414’) ‧ ‧ ‧ seat

(415)‧‧‧Axis hole

(42)‧‧‧Cord Department

(43) (43’) ‧ ‧ end body

(431) (431’) ‧‧‧

(432) (432’) ‧ ‧ outer mouth

(44) (44’) ‧‧‧ Inflow space

(s) ‧ ‧ air gap space

(50)‧‧‧ rolling elements

The first figure is a perspective view of a prior art.

The second figure is a cross-sectional view of a prior art.

The third drawing is a combined perspective view of a preferred embodiment of the present invention.

The fourth drawing is an exploded perspective view of a preferred embodiment of the present invention.

Figure 5 is a perspective view of an end body member in a preferred embodiment of the present invention.

Figure 6 is a cross-sectional view taken along line III-6-6 of a preferred embodiment of the present invention.

Figure 7 is a cross-sectional view of a preferred embodiment of the present invention taken along the line VII of Figures 7-7.

Figure 8 is a partial enlarged view of a region of the sixth embodiment of the present invention along a sixth embodiment of the present invention.

Figure 9 is a perspective view of an end body member in another preferred embodiment of the present invention.

Figure 11 is a cross-sectional view showing another preferred embodiment of the present invention.

Figure 11 is a cross-sectional view showing another preferred embodiment of the present invention.

Referring to the third to eighth embodiments, in the preferred embodiment of the present invention, a slider type linear motor (10) is provided, which mainly includes a base member (20) and a stator. A member (30), a moving member (40), and a plurality of rolling elements (50).

The base member (20) has a long plate-shaped bottom portion (21) extending in two straight lines. The guide rails (22) are respectively protruded from two sides of the long axis of the bottom portion (21) and extend along the long axis direction of the bottom portion (21), so that grooves are formed between the guide rails (22) and the bottom portion. In the space of the shape, the two-plate-shaped pier portion (23) is disposed on both ends of the long axis of the bottom portion (21), and the one-side plate surface and the bottom portion (21) and the long-axis end of each of the guide rails (22) The end faces are abutted and fixed to each other, and the two bores (24) are coaxially inserted through the respective pier portions (23), and the bore shafts are parallel to the long axes of the respective guide rails (22).

The stator member (30) has a long tubular stator seat (31), and two elastic support collars (32) having outer edges are respectively sleeved on both ends of the tube shaft of the stator seat (31), and One end of the smaller outer diameter (321) is coaxially embedded in the corresponding hole (24), so that the stator seat (31) is indirectly bridged between the respective pier portions (23), and each of the support collars is made (32) The other end (322) having a larger outer diameter is located outside the corresponding bore (24) and abuts against the side of the corresponding pier portion (23).

The mover member (40) has a mover seat (41) which is slidably disposed on the stator seat (31) and is reciprocally displaceable between the pier portions (23), and has a tubular coil portion. (42) The coaxial sleeve is slidably disposed on the stator base (31) and received in the mover seat (41), and the two annular end bodies (43) are respectively disposed in the mover seat (41). And at a position of both ends of the coil portion (42), the two inflow spaces (44) are respectively disposed on the end bodies (43), and the coil portion (42) and the stator are interposed therebetween. The tubular air gap space (s) between the seats (31) is connected; further, the mover seat (41) further comprises a substantially rectangular main body (411), and a spindle hole (412) The coil portion (42) and each of the end bodies (43) are disposed in the two ends of the main shaft (411), and a recess (413) is recessed in the spindle hole (412). The hole wall extends along the hole axis, and the two plate-shaped end seats (414) are respectively fixed on the long shaft ends of the main body (411), and the two end shaft holes (415) are respectively respectively The two ends of the end body (414) are disposed coaxially with the main shaft hole (412) and communicate with each of the inflow spaces (44) And each end of the shaft The aperture of the hole (415) is smaller than the aperture of the spindle hole (412), so that each end body (43) is sandwiched between each end body (414) and the coil portion (42); In the embodiment, the inflow space (44) is formed by changing the size of each end body (43), specifically, each end body (43). Each has a ring body (431) of a suitable thickness, coaxially sleeved on the stator seat (31), and sandwiched between the coil portion (42) and the corresponding end seat (414), the ring body ( 431) one end of the axial direction is provided with a push-out outer port (432) whose inner and outer diameters are gradually increased, and the outer port (432) communicates with the corresponding end shaft hole (415), and the outer port (432) Forming a portion of the inflow space (44), and forming a space at the other end of the ring body (431) to form another portion of the inflow space (44), so that air is allowed to be formed in each of the end shaft holes (415) A channel of convection between air gap spaces (s).

Each of the rolling elements (50) is a ball which is respectively disposed between the mover seat (41) and each of the guide rails (22), so that the mover base (41) can be made by each of the rolling elements ( 50) and guided by each of the guide rails (22) to obtain stable positioning and guiding effect, the structure of the equal rolling combination is the same as the rolling connection between the slider and the guide rail in the conventional linear sliding rail. In other words, the mover seat (41) is in the corresponding range and has the position of the component equivalent to the conventional slider member.

By virtue of the composition of the above components, the slider-type rod-shaped linear motor platform (10) can be used to transmit the moving member (40) along the tube axis direction of the stator seat (31) by using a magnetic field. Performing a linear displacement of the reciprocating force, and at the same time, when the moving member (40) is at the dead point of the reciprocating stroke, the large outer diameter ends (322) of the elastic supporting collars (32) respectively provide a buffering effect. Avoiding direct impact between the moving member (40) and each of the pier portions (23) to ensure the stability of the part, and at the same time, by the small outer diameter end (321) of each elastic supporting collar (32) The structure between each of the pier portion (23) and the stator seat (31) can provide shock absorbing effect, and the slider type rod linear motor platform (10) The vibration generated in use can be appropriately eliminated.

In addition, when the moving member (40) reciprocates on the stator base (31), the air can be appropriately compressed and guided by externally expanding the inflow space (44). Entering the air gap space (s) to convect the air, so that the heat generated by the coil portion (42) is continuously dissipated to ensure the performance of the motor operation while avoiding thermal energy for other constituent elements. The resulting deformation to ensure the precision of the action.

In addition, it is specifically mentioned here that the foregoing in order to constitute each of the inflow spaces can be achieved by changing the shape of each end body, but other techniques can also be used. To achieve this, another example here is another preferred embodiment as shown in the ninth to eleventh drawings, such that each of the end bodies (43') has a suitable one of the same as the foregoing embodiment. a thickness ring body (431'), a plurality of grooves (432') are recessed on the inner annular surface of the ring body (431') and extend in the axial direction to both ends, so that each groove (432') The inflow space (44') is configured to communicate the corresponding end shaft hole (414') with the air gap space (s).

(10)‧‧‧Slide type rod linear motor

(20) ‧ ‧ base parts

(22)‧‧‧ Guide rails

(23)‧‧‧dun

(24)‧‧‧ Holes

(30)‧‧‧ stator parts

(32)‧‧‧elastic support collar

(321)‧‧‧ Small outer diameter end

(322)‧‧‧ Large outer diameter end

(40) ‧‧‧ moving parts

Claims (9)

A slider-type rod-shaped linear motor platform comprises: a base member having two pier portions spaced apart from each other; and two linearly extending guide rails which are parallel to each other and spaced apart from each other between the pier portions; The sub-piece has a tubular stator seat, wherein both ends of the tube shaft are bridged between the pier portions, and the tube axis is parallel to the long axis of each of the guide rails; a moving member has a mover seat and is slidable And the tubular coil portion is disposed in the mover seat and coaxially slidably disposed on the stator seat; the two annular end bodies are respectively located at the stator base Both ends of the tube shaft of the coil portion; the two inflow spaces are respectively disposed on the end bodies, and are connected to the air gap space between the coil portion and the stator seat; and a plurality of rolling bodies are disposed on the Between the mover seat and each of the guide rails; wherein each of the end bodies has a ring body; at least one groove is recessed on the inner annular surface of the ring body and extends in the axial direction to both ends, and the groove is formed by the groove The inflow space. According to the slider type linear motor platform of the first aspect of the patent application, wherein the end body of each of the end bodies is provided with a push-out outer port which is gradually increased from the inner side to the outer side, and the outer port is provided. Opposite to the coil portion, a portion of the inflow space is formed by the outer port. The slider-type rod-shaped linear motor platform according to claim 1, wherein the movable seat system further comprises a hollow main body, and the coil portion and each of the end bodies are accommodated in an inner space; The body is located on both sides of the main seat. According to the slider type rod linear motor platform of claim 3, wherein the end systems are respectively located between the main seat and the corresponding end seat. According to the slider type rod linear motor platform described in claim 3, wherein the mover The seat has a spindle hole disposed in the main body; a recess is recessed in the hole wall of the spindle hole and extends along the hole axis. The slider-type rod-shaped linear motor platform according to claim 5, wherein the mover seat further comprises a two-end shaft hole, which is disposed on each end seat and coaxially communicates with the spindle hole. According to the slider type rod linear motor platform of claim 6, wherein the aperture of each of the end shaft holes is smaller than the aperture of the spindle hole. According to the slider type rod linear motor platform of claim 6, wherein each of the end shaft holes is in communication with each of the inflow spaces. The slider-type rod-shaped linear motor platform according to claim 1, wherein the stator member further comprises two elastic support collars respectively sleeved on both ends of the tube shaft of the stator seat.