Actuator assembly for linear motor device and linear motor device

Abstract

The utility model relates to an actuator assembly used for a linear motor device, which comprises a switch bar (1) used for fixing a travel switch, a guide rail (2) and a sliding block (3), the sliding block (3) can do linear reciprocating motion along the guide rail, and the linear reciprocating motion is controlled through contact between the sliding block (3) and the travel switch. The utility model also relates to a linear motor device.

Description

Technical Field

[0001] This utility model relates to an actuator assembly for a linear motor device, comprising a switch bar for fixing a limit switch, a guide rail, and a slider, wherein the slider can perform linear reciprocating motion along the guide rail, and the linear reciprocating motion is controlled by contact between the slider and the limit switch. This utility model also relates to a linear motor device. Background Technology

[0002] A linear motor is a device that converts the rotary motion of an electric motor into linear reciprocating motion. It is widely used in various applications requiring precise position control. A linear motor mainly consists of an electric motor, a lead screw, and an actuator assembly, which may further include guide rails, sliders, and limit switches.

[0003] An electric motor provides rotational torque as the drive unit, and after adjusting the speed and torque through a suitable transmission mechanism (such as gears), the rotational motion is transmitted to a lead screw. The lead screw is connected to the electric motor, and when the motor rotates, the lead screw also rotates. The lead screw typically has a threaded structure, which converts its own rotational motion into linear movement along the lead screw axis of a slider, which is also connected to the lead screw. A guide rail is used to support and guide the linear movement of the slider. The slider can slide on the guide rail due to the rotation of the lead screw by engaging with the screw threads. Limit switches are used to limit and control the maximum range of movement of the slider. When the slider reaches a set position, the limit switch is triggered by the slider, thereby controlling the electric motor, such as cutting off the power or changing the direction of rotation, thus stopping the slider's forward movement and causing it to move in the opposite direction. This enables automated reciprocating motion control.

[0004] Limit switches can be first mounted on a switch bar, and then positioned by fixing the switch bar to a guide rail. However, fixing the switch bar usually requires additional and complex design of the guide rail, which increases production costs. In addition, a problem with the existing technology is that the guide rails commonly used are prone to deformation during use due to loads, especially radial loads. Utility Model Content

[0005] Therefore, the technical problem to be solved by this utility model is to provide an actuator assembly for a linear motor device and a corresponding linear motor device, which avoids the disadvantages of the prior art.

[0006] According to this utility model, an actuator assembly for a linear motor device is proposed, comprising a switch bar for fixing a limit switch, a guide rail, and a slider. The slider is capable of linear reciprocating motion along the guide rail, wherein the linear reciprocating motion is controlled by contact between the slider and the limit switch. The guide rail has two guide rail sidewalls and a guide rail bottom wall connecting the two guide rail sidewalls to each other. At least one guide rail sidewall is constructed with a rolled edge, and the switch bar is at least partially fixed inside the guide rail by the rolled edge. First, designing the guide rail with two guide rail sidewalls and a guide rail bottom wall connecting the two guide rail sidewalls to each other enhances the rigidity of the guide rail and helps prevent deformation of the guide rail during use. In addition, the simple rolled edge design on the guide rail allows the switch bar to be easily fixed to the guide rail without complex installation tools or additional fasteners, thereby simplifying the installation process and ultimately reducing manufacturing and installation costs. For the guide rail itself, the rolled edge of the guide rail sidewall further enhances the overall rigidity of the guide rail.

[0007] According to a preferred design, the switch bar has a base and a first protrusion extending from the base along the length of the switch bar. The switch bar is secured within the guide rail by the engagement of the first protrusion with the rolled edge. Here, the extension of the first protrusion along the length of the switch bar ensures reliable fixation within the guide rail. The engagement of the first protrusion with the rolled edge secures the switch bar, eliminating the need for additional installation tools and fasteners.

[0008] According to a preferred design, the rolled edge forms a receiving portion with an opening. The first protrusion includes a connecting section and an end connected to the connecting section and located away from the base. The first protrusion is disposed within the rolled edge such that the connecting section extends through the opening, and the end is disposed within the receiving portion. In this design, the end of the first protrusion disposed within the receiving portion formed by the rolled edge ensures reliable fixation of the switch bar on the guide rail and thus reliable control of the stroke. Furthermore, it allows for simple and quick installation, as installation only requires inserting the end of the first protrusion into the receiving portion, significantly reducing installation costs.

[0009] According to a preferred design, the end portion is shaped and arranged within the receiving portion. This shaped fit enhances the stability of the connection, or the stability of the switch bar's fixation on the guide rail. Furthermore, the shaped fit is advantageous over other designs in its simplicity; it requires no additional components and relies solely on the end of the switch bar base and the rolled edge of the guide rail for connection. This shaped fit can be achieved by designing the end portion into an irregular or regular shape, such as a triangle, quadrilateral, polygon, or even a circle, and designing the receiving portion to match that shape.

[0010] According to a preferred design, the switch bar includes a second protrusion extending from the base body, adjacent to the first protrusion. When the first protrusion is positioned within the rolled edge, the second protrusion abuts against the rolled edge from outside the receiving portion. By providing the second protrusion, additional support for the switch bar on the guide rail can be achieved, thereby further improving the stability when the switch bar is fixed. Designing the first and second protrusions such that when the first protrusion is positioned within the rolled edge, the second protrusion abuts against the rolled edge from outside the receiving portion allows for simultaneous support of the switch bar both inside and outside the rolled edge, while also ensuring overall torsional resistance of the switch bar.

[0011] According to a preferred design, the length of the second protrusion extending from the base is less than the length of the first protrusion extending from the base. The length of the second protrusion extending from the base can be the same as the length of the first protrusion extending from the base. However, in a preferred embodiment, the first and second protrusions extend from the base at different lengths, thereby achieving support for the first and second protrusions at different heights, further increasing the stability of the guide rail's support for the switch bar.

[0012] According to a preferred design, the end of the second protrusion has a horizontal, vertical, or inclined support surface, and the second protrusion abuts against the rolled edge via the support surface. The second protrusion abuts against the rolled edge via the support surface, thereby achieving more stable support through planar contact than point or line contact. The support surface can be oriented horizontally, vertically, or inclined to achieve support for the switch bar from different directions.

[0013] According to a preferred design, the substrate has two substrate sidewalls and a substrate bottom wall connecting the two substrate sidewalls to each other, wherein the first protrusion and / or the second protrusion protrudes from the substrate sidewall or substrate bottom wall. By designing the substrate to have two substrate sidewalls and a substrate bottom wall connecting the two substrate sidewalls to each other, a more stable structure can be given the substrate. In this case, the first protrusion and / or the second protrusion may optionally protrude from the substrate sidewall or substrate bottom wall.

[0014] According to a preferred design, the base sidewall without the first and second protrusions abuts against the corresponding guide rail sidewall or guide rail bottom wall, thereby forming a receiving space. When the switch bar is installed in the guide rail, in addition to being at least partially fixed by the rolled edge of the guide rail, the switch bar can also achieve additional support by abutting against the corresponding guide rail wall, such as the guide rail sidewall or guide rail bottom wall, through the sidewall of the switch bar base without the first and second protrusions. In this case, a receiving space can also be formed, which can provide installation or arrangement space for other components to better protect them.

[0015] According to a preferred design, at least one fixing part for fixing a limit switch is provided on the side wall or bottom wall of the base, thereby allowing at least a portion of the limit switch to be arranged in the receiving space. The limit switch can be fixed to the side wall or bottom wall of the base by the corresponding fixing part so that it can be actuated by a reciprocating slider during the operation of the linear motor device. In other words, different functions are realized on different sides of the base of the switch bar. For example, protrusions can be provided for fixing the switch bar, for abutting against the surface of the guide rail for support, and for mounting the limit switch. A portion of the limit switch, such as the connecting wire, can be arranged longitudinally along the switch bar and located in the receiving space, thereby avoiding interference from other components to the connecting wire and thus to the limit switch.

[0016] According to a preferred design, at least two fixing parts are provided. Two fixing parts can be provided on the switch bar, thereby fixing two limit switches. These two limit switches can be arranged at the beginning and end of the entire stroke so that the slider actuates the limit switches at the corresponding positions. It is also conceivable to arrange more fixing parts; in this design, the fixing positions of the limit switches on the switch bar are optional, thus achieving a settable stroke, which further expands the application scenarios of the linear motor device.

[0017] According to a preferred design, the protrusion's length along the length of the switch bar is less than the length of the switch bar itself. In other words, the protrusion extending from the switch bar base does not extend along the entire length of the switch bar, but only along a portion of its length. Therefore, regions without protrusions are formed on the switch bar, which may include end regions, allowing for greater space for mounting other components due to the absence of protrusions.

[0018] According to a preferred design, the actuator assembly for the linear motor device also has two end caps. Each end cap has a through-hole corresponding to a rolled edge on the sidewall of the guide rail. The end caps and the guide rail are connected to each other via bolts passing through the through-holes and the rolled edges. Typically, the longitudinal end of the actuator assembly can be closed by the end caps, which in conventional designs would require a separate fixing component on the guide rail. However, in this design, the rolled edge itself, in addition to securing the switch bar inside the guide rail, can also be used at its end to engage with a fixing device, such as a bolt, to secure the end cap.

[0019] According to a preferred design, the end cap has a protrusion on its side wall facing inwards towards the guide rail, and the protrusion presses firmly against the base. Besides sealing the guide rail, the end cap also presses firmly against the base by providing a protrusion on its inner side wall. This provides a more stable fixation of the switch bar, preventing displacement or shaking during operation, which could lead to unexpected changes in the position of the limit switch and consequently, inaccurate travel control.

[0020] According to a preferred design, the outer surfaces of the guide rail sidewalls and bottom wall are smoothly constructed. According to this invention, the guide rail itself has two sidewalls and a bottom wall connecting the two sidewalls. Furthermore, the sidewalls are provided with rolled edges for fixing the switch bar. These designs advantageously improve the rigidity of the guide rail and its resistance to external loads, especially radial loads. In this case, the stiffening structures and grooves or protrusions for fixing the switch bar, typically present in guide rails designed as profiles, can be completely eliminated. It is also conceivable that the inner surface of the guide rail, which faces the outer surfaces of the sidewalls and bottom wall, is also smoothly constructed.

[0021] According to a preferred design, the guide rail is constructed as a steel profile component. This steel profile component has a very simple structure, achievable through bending and rolling the edges of the steel plate, which significantly reduces production costs.

[0022] The aforementioned technical problem is also solved by a linear motor device, which includes at least an actuator assembly, a lead screw, a motor, and a limit switch as described in this utility model, wherein the lead screw engages with a threaded hole inside the slider and causes the slider to reciprocate linearly along the guide rail when driven by the motor.

[0023] The slider is supported on and surrounds the guide rail. That is, the slider moves along the guide rail while being engaged with it outside the guide rail, thereby achieving stable support for the slider through the guide rail. Attached Figure Description

[0024] The preferred embodiments of the present invention will now be explained in more detail with reference to the accompanying drawings, wherein...

[0025] Figure 1 This invention illustrates a switch bar for fixing a limit switch in an actuator assembly for a linear motor device according to the present invention.

[0026] Figure 2 Show Figure 1 The cross-sectional view of one design scheme for the switch bar shown is as follows.

[0027] Figure 3 Show Figure 1 A cross-sectional view of another design scheme for the switch bar shown.

[0028] Figure 4 The image shows a side view of a switch bar for fixing a limit switch in an actuator assembly for a linear motor device according to the present invention.

[0029] Figure 5 A side view of a guide rail in an actuator assembly for a linear motor device according to the present invention is shown.

[0030] Figure 6A The image shows a side view of an end cap in an actuator assembly for a linear motor device according to the present invention.

[0031] Figure 6B A perspective view of another end cap in an actuator assembly for a linear motor device according to the present invention is shown.

[0032] Figure 7 This shows a side view of the switch bar, guide rail, and end cap of the actuator assembly for a linear motor device according to the present invention after assembly.

[0033] Figure 8 This image shows a perspective view of the switch bar, guide rail, and end cap of an actuator assembly for a linear motor device according to the present invention, after assembly.

[0034] Figure 9 A perspective view of the linear motor device according to the present invention is shown. Detailed Implementation

[0035] Here, elements with the same or similar functions or structures are given the same reference numerals.

[0036] Figure 1 The figure shows a switch bar 1 for fixing a limit switch in an actuator assembly for a linear motor device according to the present invention. The switch bar 1 has a length direction L. As can be seen from the figure, the switch bar 1 has a base 10 that extends in the length direction L of the switch bar.

[0037] Figure 2 and Figure 3 Views of the switch bar 1 according to two different design schemes in cross-sections perpendicular to the length direction L of the switch bar are shown. As can be seen, the base 10 is basically designed as a U-shaped structure with two base sidewalls 11, 12 and a base bottom wall 13 connecting the two base sidewalls to each other. In designs not shown, the switch bar 1 can also have other cross-sectional shapes, such as an I-shape based on the U-shaped cross-section with one base sidewall and base bottom wall removed, or an L-shape with one base sidewall removed. The design according to this invention is of course applicable to other cross-sectional shapes as well. It can also be seen that the switch bar 1 has a first protrusion 14 and a second protrusion 15 protruding from the base 10, which extend in the length direction L of the switch bar. The first protrusion 14 and the second protrusion 15 protrude from the base sidewalls 11, 12 or the base bottom wall 13 of the base 10 in a direction away from the base 10. The switch bar 1 is fixed inside the guide rail 2 by the cooperation of the first protrusion 14 and / or the second protrusion 15 with the rolled edge 24 on the guide rail 2 (e.g., Figure 5 , Figure 7 , Figure 8 (As shown).

[0038] exist Figure 2 In the middle, the first protrusion 14 protrudes from the base bottom wall 13 of the base 10, in Figure 3 Another design is shown, in which the first protrusion 14 protrudes from one sidewall 12 of the base 10. Figure 1 This design scheme is also shown in the image.

[0039] Specifically Figure 2 , Figure 3 As shown, the first protrusion 14 has an end 142 remote from the base 10 and a connecting segment 141 connecting the end 142 to the base 10. Figure 2As can be seen in the cross-section shown, in the direction perpendicular to the direction in which the first protrusion 14 protrudes from the base 10 (i.e., in the horizontal direction in the figure), the dimension D of the end portion 142 is larger than the dimension d of the connecting section 141. This barb-like design allows for engagement between this end portion and the rolled edge 24 of the guide rail 2, for example, see... Figure 7 Furthermore, as can be seen in the figure, end 142 has an arc-shaped outline, but other shapes are also possible, such as triangles, quadrilaterals, etc.

[0040] The connecting segment 141 has mutually parallel side surfaces 143 and 144. One of the mutually parallel side surfaces 143 and 144 of the connecting segment 141 may lie in a common plane with the outer side surface or end face of the sidewall. Figure 2 In the view, the first protrusion 14 protrudes from the base bottom wall 13 of the base 10, and in this case, the side 143 of the connecting section 141 is flush with the outer side 121 of the side wall 12 of the base 10. This increases the contact surface when the switch bar 1 is fixed on the guide rail, so as to achieve a more stable fixation. Furthermore, in Figure 3 In the view, the first protrusion 14 protrudes from the side wall 12 of the base 10, and in this case, the side of the connecting section is retracted a certain distance in the horizontal direction relative to the end face 122 of the side wall 12 of the base 10.

[0041] from Figure 2 , 3 As can also be seen in 7 and 8, the second protrusion 15 is adjacent to the first protrusion 14, so that when the first protrusion 14 is arranged in the rolled edge portion 24, the second protrusion 15 abuts against the rolled edge portion 24 from the outside of the receiving portion 242. The base 10 can be additionally supported on the guide rail by the second protrusion 15, which makes the fixation of the switch bar 1 more reliable.

[0042] The second protrusion 15 protrudes from the base 10 by a shorter length than the first protrusion 14 protrudes from the base 10. Thus, when the switch bar is installed, the first protrusion 14 and the second protrusion 15 can be supported at different positions due to their different lengths, achieving more stable support for the switch bar at multiple different positions.

[0043] Figure 2 , Figure 3 The image shows that the end of the second protrusion 15 has an inclined support surface 151, and the second protrusion 15 abuts against the rolled edge portion 24 via the support surface 151. Figure 7 , Figure 8However, it is also conceivable to construct a horizontal or vertical support surface at this end to support the corresponding horizontal or vertical mating surfaces of other structures. Importantly, planar support is achieved through the end of the second protrusion 15, avoiding the instability of support caused by point or line contact alone.

[0044] Figure 4 The side view of switch bar 1 is shown. To avoid the detail being unclear due to its large size, the middle part of switch bar 1 has been cropped in the figure. Figure 4 As can be clearly seen, the length l2 of the first protrusion 14 and the second protrusion 15 in the length direction L of the switch bar is less than the length l1 of the switch bar 1. That is, the first protrusion 14 and the second protrusion 15 do not exist in the two end regions of the switch bar. Of course, the lengths of these two regions can be the same (e.g., ...). Figure 4 (As shown), or they can be different. The purpose of this design is twofold: firstly, to avoid unnecessary material waste caused by setting protrusions along the entire length of the switch bar 1; and secondly, to avoid inconvenience in assembling with other components due to protrusions in the end areas of the switch bar, such as when the switch bar is mounted on a guide rail, the guide rail usually needs to be closed at the end with an end cap, see... Figure 7 , 8 9, or need to be connected to an electric motor, so it is advantageous to set up additional installation space in these areas.

[0045] from Figure 4 It can also be seen that a fixing part 16 for fixing the limit switch is provided on the base. Combined with Figure 2 , Figure 3 as well as Figure 4 ,exist Figure 2 In the design shown, the fixing part 16 can be provided on the base sidewall 11 of the base 10. Figure 3 In the design shown, the fixing part 16 can be provided on the base bottom wall 13 of the base 10. Here, the base sidewall without the first and second protrusions can abut against the corresponding guide rail sidewall or guide rail bottom wall 23, forming a receiving space R, see Figure 7 Through this design, different functions are achieved on different sides of the substrate 10. Figure 2 In the design shown, the base bottom wall 13 of the base 10 is used to fix the switch bar 1 through the first and second protrusions; the base side wall 12 and the end faces of the two side walls of the base 10 are positioned against the inner wall of the guide rail 2; and the other base side wall 11 of the base 10 is used to fix the limit switch. Figure 3In the design shown, the base bottom wall 13 of the base 10 is used to fix the limit switch, the base side wall 12 of the base 10 is used to fix the switch bar 1 through the first and second protrusions, and the other base side wall 11 of the base 10 and the end faces of the two base side walls are positioned against the inner wall of the guide rail.

[0046] Two fixing parts 16 can be provided on the switch bar to fix two limit switches. The motor can be controlled by the slider's operation of the limit switches at the start and end points of the slider's reciprocating motion, thereby stopping or reversing the slider's motion.

[0047] Of course, it is also feasible to set more fixing parts, for example, by Figure 4 As can be seen, four fixing parts 16 are provided on the base 10 of the switch bar 1. In this design, different travel can be set by fixing the limit switch on different fixing parts 16. For example, fixing the limit switch on the two outermost fixing parts achieves a longer travel, while fixing it on the two innermost fixing parts achieves a shorter travel.

[0048] Figure 5 The diagram shows a guide rail 2 preferably constructed of a steel profile component, having two guide rail sidewalls 21, 22 and a guide rail bottom wall 23 connecting the two guide rail sidewalls to each other. A rolled edge 24 is formed on the two guide rail sidewalls, and the switch bar 1 is at least partially fixed inside the guide rail 2 via the rolled edge 24. The rolled edge 24 forms a receiving portion 242 with an opening 241. A connecting section 141 of the first protrusion 14 extends through the opening 241, and the end portion 142 is shaped to fit within the receiving portion 242. A second protrusion 15 (e.g., ...) can be supported on the outer surface of the receiving portion 242. Figure 7 (As shown in the figure). As can be seen from the figure, the inner and outer surfaces of the guide rail sidewalls and bottom wall are smooth; that is, there are no additional stiffening parts to increase the strength of the guide rail itself, nor any other structures for fixing the switch bar. This is because the guide rail itself has two sidewalls and a bottom wall connecting the two sidewalls, and the sidewalls also have rolled edges for fixing the switch bar. These designs effectively improve the rigidity of the guide rail and its ability to resist external loads, especially radial loads. Furthermore, the rolled edges on the guide rail can form a structure that reliably fixes the switch bar.

[0049] Figure 6A and Figure 6B The two end caps 41 and 42 of the actuator assembly for the linear motor device are shown. Figure 6A The image shows a side view of the end cap 41. Figure 6BThe diagram shows a perspective view of end cap 42. End caps 41 and 42 have through holes 411 corresponding to the rolled edge 24 of the guide rail sidewall. The end caps and the guide rail are interconnected by bolts passing through the through holes and the rolled edge 24. See also... Figure 7 as well as Figure 8 The example shown is of an end cap 42 mounted on a guide rail.

[0050] In addition, from Figure 6A and Figure 6B It can also be seen that the end caps 41 and 42 have protrusions 412 and 422 respectively on the sidewalls of the end caps facing the inside of the guide rail. The protrusions can be pressed against the base 10 to better position the switch bar 1. Figure 7 .

[0051] Figure 7 and Figure 8 This view shows the assembled state of the switch bar 1, guide rail 2, and end cap 42 described above. In particular, the receiving space R formed when the switch bar 1 is fixed inside the guide rail 2 is visible here. Parts of the limit switch, such as its connecting wires, can be arranged within this receiving space and well protected from the influence of adverse external factors.

[0052] Figure 9 The linear motor device 5 according to the present invention is shown in the figure, which includes an actuator assembly for a linear motor device according to the present invention, a lead screw ( Figure 9 (invisible in the middle), motor and limit switch ( Figure 9 (Not visible in the image). The electric motor provides rotational torque as the drive unit, and after adjusting the speed and torque through a suitable transmission mechanism (such as gears), the rotational motion is transmitted to the lead screw. The lead screw typically has a threaded structure that engages with a threaded hole inside the slider 3, which, when driven by the electric motor, causes the slider 3 to perform a linear reciprocating motion along the guide rail 2 of the actuator assembly. Figure 9 As can be seen, the slider is supported on and surrounds the guide rail. That is, the slider moves along the guide rail while being engaged with it outside the guide rail, thereby achieving stable support for the slider through the guide rail.

[0053] Although the present invention has been described in detail through preferred embodiments, the present invention is not limited to the disclosed embodiments. Those skilled in the art can derive other modified design schemes by combining the technical features mentioned in this specification without departing from the protection scope of the present invention.

Claims

1. An actuator assembly for a linear motor device, comprising a switch bar for fixing a limit switch, a guide rail, and a slider, the slider being capable of linear reciprocating motion along the guide rail, wherein, The linear reciprocating motion is controlled by the contact between the slider and the limit switch. The guide rail has two guide rail side walls and a guide rail bottom wall connecting the two guide rail side walls to each other. At least one guide rail side wall is constructed with a rolled edge. The switch bar is fixed inside the guide rail at least partially through the rolled edge.

2. The actuator assembly according to claim 1, characterized in that, The switch bar has a base and a first protrusion extending from the base, the first protrusion extending along the length of the switch bar, wherein the switch bar is fixed inside the guide rail by the cooperation of the first protrusion with the rolled edge.

3. The actuator assembly for a linear motor device according to claim 2, characterized in that, The rolled edge portion forms a receiving portion with an opening, and the first protrusion includes a connecting segment and an end connected to the connecting segment and located away from the base, wherein the first protrusion can be disposed in the rolled edge portion such that the connecting segment extends through the opening, and the end is disposed in the receiving portion.

4. The actuator assembly for a linear motor device according to claim 3, characterized in that, The end portion is shaped and arranged in the receiving portion.

5. The actuator assembly for a linear motor device according to claim 3, characterized in that, The switch bar includes a second protrusion protruding from the base, the second protrusion being adjacent to the first protrusion, such that when the first protrusion is arranged in the rolled edge portion, the second protrusion abuts against the rolled edge portion from outside the receiving portion.

6. The actuator assembly for a linear motor device according to claim 5, characterized in that, The length of the second protrusion from the base is less than the length of the first protrusion from the base.

7. The actuator assembly for a linear motor device according to claim 5, characterized in that, The end of the second protrusion has a horizontal, vertical, or inclined support surface, and the second protrusion abuts against the rolled edge via the support surface.

8. The actuator assembly for a linear motor device according to claim 5, characterized in that, The substrate has two substrate sidewalls and a substrate bottom wall connecting the two substrate sidewalls to each other, wherein the first protrusion and / or the second protrusion protrudes from the substrate sidewall or the substrate bottom wall.

9. The actuator assembly for a linear motor device according to claim 8, characterized in that, The base sidewall without the first and second protrusions abuts against the corresponding guide rail sidewall or guide rail bottom wall, thereby forming a receiving space.

10. The actuator assembly for a linear motor device according to claim 9, characterized in that, At least one fixing part for fixing the limit switch is provided on the side wall or bottom wall of the substrate, thereby allowing at least a portion of the limit switch to be arranged in the receiving space.

11. The actuator assembly for a linear motor device according to claim 10, characterized in that, It is provided with at least two of the aforementioned fixing parts.

12. The actuator assembly for a linear motor device according to claim 2, characterized in that, The length of the protrusion in the length direction of the switch bar is less than the length of the switch bar.

13. The actuator assembly for a linear motor device according to claim 12, characterized in that, The actuator assembly for the linear motor device also has two end caps, each end cap having a through hole corresponding to a rolled edge portion of the guide rail sidewall, and the end caps and the guide rail being interconnected by bolts passing through the through holes and the rolled edge portion.

14. The actuator assembly for a linear motor device according to claim 13, characterized in that, The end cap has a protrusion on its sidewall facing the inside of the guide rail, and the protrusion is pressed against the base.

15. The actuator assembly for a linear motor device according to claim 1, characterized in that, The outer surfaces of the guide rail sidewalls and bottomwalls are smoothly constructed.

16. The actuator assembly for a linear motor device according to claim 1, characterized in that, The guide rail is constructed from steel profile components.

17. A linear motor device, characterized in that, The linear motor device includes at least an actuator assembly, a lead screw, a motor, and a limit switch as described in any one of claims 1 to 16, wherein the lead screw engages with a threaded hole inside the slider and causes the slider to reciprocate linearly along a guide rail when driven by the motor.

18. The linear motor device according to claim 17, characterized in that, The slider is supported on and surrounds the guide rail.

Images