Dotting device for marking motor rotor
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-05-06
- Publication Date
- 2026-06-26
AI Technical Summary
In existing dotting devices, the pen tip is exposed for extended periods, affecting dotting efficiency.
A dotting device for marking motor rotors was designed, including a base, a placement area, a clamping component, a placement plate, and a dotting pen. Through the cooperation of a linear drive component and a telescopic cylinder, the dotting pen is automatically protected and the ink is collected, avoiding prolonged exposure of the pen tip.
It improves the efficiency of dot marking, protects the pen tip, and reduces the impact of pen ink on the motor rotor.
Smart Images

Figure CN122274906A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of dotting technology, and more particularly to a dotting device for marking motor rotors. Background Technology
[0002] In the production process of DC motors, it is usually necessary to mark specific positions on the rotor, which can be called dotting. This is used to identify the production line from which the rotor is produced, so as to facilitate traceability. At the same time, in order to facilitate the removal of the marks in subsequent production, a marker pen is generally used to mark the product.
[0003] In existing dotting devices, the pen tip of the marker is exposed to the outside for a relatively long time, which can cause problems with the pen tip, affecting dotting and reducing dotting efficiency. Summary of the Invention
[0004] In view of this, the purpose of the present invention is to provide a dotting device for marking motor rotors to solve the problem of reduced dotting efficiency.
[0005] To achieve the above objectives, the present invention provides a dotting device for marking motor rotors, comprising a base, a placement area for placing a motor rotor on the base, a clamping member for clamping the motor rotor on the placement area, an inclined mounting plate mounted on one side of the placement area via a support frame, a placement plate slidably mounted on the mounting plate, a linear drive member mounted on the placement plate for controlling the movement of the placement plate connected to the placement plate, a placement slot for placing a dotting pen with the tip of the dotting pen pointing towards the base, the placement slot being open on the side facing the base, and the other end of the placement slot being connected to a traction device. A spring is connected to an elastic sleeve for holding the end of the marker pen. A winding member is provided on the side of the placement plate away from the base. The winding member winds up a traction line connected to the elastic sleeve. A pen sleeve is provided on the other side of the placement plate for covering the tip of the marker pen. The pen sleeve includes a lower base and an upper cover located above the lower base. The lower end of the upper cover is fitted with the upper end face of the lower base. A collection groove for collecting the pen ink dripping from the tip of the marker pen is opened in the middle of the upper end face of the lower base. A lower drive telescopic cylinder connected to the base is provided on the lower side of the lower base. An upper drive telescopic cylinder connected to the base is provided on the upper side of the upper cover via a connecting frame.
[0006] Optionally, slots are provided on both sides of the placement groove, and a slide plate with its end extending into the slot is slidably connected in the placement groove. The slide plate is provided with a fixing member for fixing the marker pen. The fixing member includes two fixing plates respectively set in the slot. The fixing plates are rotatably connected to the slide plate through a swing shaft. A torsion spring is sleeved on the swing shaft. The two ends of the torsion spring abut against the slide plate and the fixing plate respectively. A guide groove is provided at the upper end of the fixing plate.
[0007] Optionally, elastic springs are connected to both sides of the end of the slide plate that extends into the slot, and the other end of the elastic spring is connected to the side wall of the slot.
[0008] Optionally, an elastic plate is connected between the elastic sleeve and the traction spring, and the outer sleeve of the traction spring is provided with a multi-section telescopic protective sleeve.
[0009] Optionally, the winding component includes a winding motor disposed on the placement plate, the output end of the winding motor being connected to a spool, and the traction line being connected to and wound on the spool.
[0010] Optionally, the linear drive component is a linear telescopic cylinder mounted on the mounting plate, and the telescopic end of the linear telescopic cylinder is connected to the placement plate.
[0011] Optionally, the clamping member includes two opposing arc-shaped clamping plates, each with a clamping telescopic cylinder on one side.
[0012] Optionally, the base is provided with a conveyor belt for transporting the motor rotor, and multiple placement areas are provided, with the multiple placement areas equally spaced on the conveyor belt.
[0013] The beneficial effects of this invention: This invention provides a dotting device for marking motor rotors. When it is necessary to mark a motor rotor, the motor rotor to be processed is placed in the placement area, and the clamping member clamps the motor rotor. At this time, the dotting pen is placed in the placement slot on the placement plate, the tail of the dotting pen is stuck in the elastic sleeve, and the head of the dotting pen is stored in the pen sleeve. The upper drive telescopic cylinder and the lower drive telescopic cylinder are both controlled to retract, so that the upper cover and the lower seat move above and below the dotting pen, respectively. Then, the winding member unwinds the traction wire, and the dotting pen, which is held by the elastic sleeve, moves a certain distance towards the base under the action of the traction spring. Then, the linear drive member controls the placement plate and the dotting pen on the placement plate to move towards the motor rotor until the head of the dotting pen is aligned with the motor rotor. The device performs dot marking. After dot marking, the linear drive retracts, causing the placement plate to reset. Then, the winding component winds up the traction line, moving the elastic sleeve and the dot pen away from the base, compressing the traction spring until the dot pen resets. Finally, both the upper and lower drive telescopic cylinders extend, facilitating the fit between the upper cover and the lower seat, and closing the dot pen cover between them. This prevents the dot pen head from being exposed for extended periods when not in use, protecting it and improving subsequent dot marking efficiency. Furthermore, with the lower seat below the dot pen head, it facilitates the collection of any ink dripping from the pen head, reducing its impact on the motor rotor and further improving the dot marking efficiency of the motor rotor. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the placement plate of the present invention; Figure 3 This is a structural schematic diagram of the fastener of the present invention.
[0016] In the diagram: 1. Base; 2. Conveyor belt; 3. Clamping component; 4. Support frame; 5. Mounting plate; 6. Linear drive component; 7. Placement plate; 8. Placement slot; 9. Slot; 10. Elastic spring; 11. Slide plate; 12. Fixing component; 13. Swing shaft; 14. Fixing plate; 15. Elastic sleeve; 16. Elastic plate; 17. Traction spring; 18. Traction line; 19. Bollard; 20. Rewinding motor; 21. Dotting pen; 22. Pen sleeve; 23. Top cover; 24. Lower base; 25. Upper drive telescopic cylinder; 26. Lower drive telescopic cylinder. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.
[0018] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this invention should have the ordinary meaning understood by those skilled in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0019] like Figures 1 to 3As shown, a marking device for motor rotors includes a base 1 with a placement area for placing the motor rotor. A clamping member 3 for holding the motor rotor is provided on the placement area. An inclined mounting plate 5 is mounted on one side of the placement area via a support frame 4. A placement plate 7 is slidably mounted on the mounting plate 5. A linear drive member 6 for controlling the movement of the placement plate 7 is connected to the placement plate 7 and mounted on the mounting plate 5. A placement groove 8 for placing a marking pen 21 is provided on the placement plate 7, with the head of the marking pen 21 pointing towards the base 1. The placement groove 8 is open on the side facing the base 1, and the other end of the placement groove 8 is connected via a traction spring 17 to a device for holding the marking pen 21. The elastic sleeve 15 at the tail end; a winding member is provided on the side of the placement plate 7 away from the base 1, and the winding member winds up the traction line 18 connected to the elastic sleeve 15; a pen sleeve 22 is provided on the other side of the placement plate 7 for covering the pen tip of the dotting pen 21; the pen sleeve 22 includes a lower base 24 and an upper cover 23 located above the lower base 24; the lower end of the upper cover 23 is fitted with the upper end face of the lower base 24; a collection groove for collecting the pen ink dripping from the pen tip of the dotting pen 21 is opened in the middle of the upper end face of the lower base 24; a lower drive telescopic cylinder 26 connected to the base 1 is provided on the lower side of the lower base 24; and an upper drive telescopic cylinder 25 connected to the base 1 is provided on the upper side of the upper cover 23 via a connecting frame.
[0020] When it is necessary to mark the motor rotor, the motor rotor to be processed is placed in the placement area, and the clamping member 3 clamps the motor rotor. At this time, the marking pen 21 is placed in the placement slot 8 on the placement plate 7, the tail of the marking pen 21 is stuck in the elastic sleeve 15, and the head of the marking pen 21 is stored in the pen sleeve 22. The upper drive telescopic cylinder 25 and the lower drive telescopic cylinder 26 are both controlled to retract, so that the upper cover 23 and the lower seat 24 move above and below the marking pen 21, respectively. Then, the winding member unwinds the traction line 18, and the marking pen 21, which is held by the elastic sleeve 15, moves a certain distance towards the base 1 under the action of the traction spring 17. Then, the linear drive member 6 controls the placement plate 7 and the marking pen 21 on the placement plate 7 to move towards the motor rotor until the head of the marking pen 21 marks the motor rotor. After the marking is completed, The linear drive 6 retracts, causing the placement plate 7 to reset. Then, the winding component winds up the traction line 18, causing the elastic sleeve 15 and the dotting pen 21 to move away from the base 1, compressing the traction spring 17 until the dotting pen 21 resets. Finally, both the upper drive telescopic cylinder 25 and the lower drive telescopic cylinder 26 extend, facilitating the fit between the upper cover 23 and the lower seat 24, covering the dotting pen 21 between the upper cover 23 and the lower seat 24. This prevents the head of the dotting pen 21 from being exposed for extended periods when not in use, protecting the head of the dotting pen 21 and facilitating subsequent dotting and marking, thus improving the efficiency of dotting and marking. In addition, with the lower seat 24 below the head of the dotting pen 21, it facilitates the collection of ink dripping from the head of the dotting pen 21, reducing the impact of this ink on the motor rotor and improving the efficiency of dotting and marking on the motor rotor.
[0021] Slots 9 are provided on both sides of the placement groove 8. A slide plate 11 with its end extending into the slot 9 is slidably connected in the placement groove 8. A fixing member 12 for fixing the dotting pen 21 is provided on the slide plate 11. The fixing member 12 includes two fixing plates 14 respectively set in the slot 9. The fixing plates 14 are rotatably connected to the slide plate 11 through a swing shaft 13. A torsion spring is sleeved on the swing shaft 13. The two ends of the torsion spring abut against the slide plate 11 and the fixing plate 14 respectively. When the dotting pen 21 is between the two fixing plates 14, the two fixing plates 14 fix the dotting pen 21.
[0022] Both sides of the end of the slide plate 11 that extends into the slot 9 are connected to elastic springs 10. The other end of the elastic spring 10 is connected to the side wall of the slot 9, which facilitates elastic support for the slide plate 11, buffers impact, and absorbs impact load. The elastic springs 10 arranged symmetrically on both sides will form a continuous and balanced preload on the slide plate 11 from the left and right directions.
[0023] An elastic plate 16 is connected between the elastic sleeve 15 and the traction spring 17 to facilitate the connection between the elastic sleeve 15 and the traction spring 17. The traction spring 17 is covered with a multi-section telescopic protective sleeve to protect the traction spring 17 and prevent the traction spring 17 from getting tangled with the traction line 18, which would affect work efficiency.
[0024] The winding component includes a winding motor 20 mounted on the placement plate 7. The output end of the winding motor 20 is connected to a spool 19. The traction line 18 is connected to and wound onto the spool 19. When the winding motor 20 starts, it drives the spool 19 to rotate. The spool 19 winds up or unwinds the traction line 18 to control the movement of the tail of the dotting pen 21, which is held in place by the elastic sleeve 15, towards or away from the spool 19. When the spool 19 winds up the traction line 18, the head of the dotting pen 21 returns to its initial position. This allows both the upper drive telescopic cylinder 25 and the lower drive telescopic cylinder 26 to extend until the upper cover 23 closes onto the lower seat 24. At this point, the head of the dotting pen 21 is stored between the upper cover 23 and the lower seat 24, which helps protect the head of the dotting pen 21 and prevents it from being exposed to the outside for a long time.
[0025] The linear drive 6 is a linear telescopic cylinder mounted on the mounting plate 5. The telescopic end of the linear telescopic cylinder is connected to the placement plate 7. The extension of the linear telescopic cylinder is used to control the placement plate 7 to move closer to the motor rotor on the base 1, so that the dotting pen 21 on the placement plate 7 can move closer to the motor rotor until the dotting pen 21 marks the motor rotor.
[0026] The mounting plate 5 is provided with a track that is slidably connected to the placement plate 7. The track provides precise and stable motion constraints and support for the placement plate 7, while transmitting loads, guiding the direction of movement, and reducing friction and energy consumption during the movement of the placement plate 7.
[0027] The clamping member 3 includes two opposing arc-shaped clamping plates. Each of the two arc-shaped clamping plates has a clamping telescopic cylinder on one side. The telescopic extension and retraction of the two clamping telescopic cylinders are used to control the two arc-shaped clamping plates to move in opposite directions to clamp or release the motor rotor.
[0028] The base 1 is provided with a conveyor belt 2 for transporting the motor rotor. Multiple placement areas are provided, and the multiple placement areas are equally spaced on the conveyor belt 2. The arrangement of the conveyor belt 2 facilitates the transportation of the motor rotor and improves the efficiency of marking the motor rotor.
[0029] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention is limited to these examples. The invention is not limited to the above-described embodiments, that is, it does not mean that the invention must rely on the above methods and structures to be implemented. Under the concept of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in the details for the sake of brevity.
[0030] The embodiments of this invention are intended to cover all such substitutions, modifications, and variations falling within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.
Claims
1. A marking device for marking motor rotors, comprising a base, wherein the base is provided with a placement area for placing the motor rotor, characterized in that, The placement area is equipped with clamping components for holding the motor rotor. An inclined mounting plate is installed on one side of the placement area via a support frame. A placement plate is slidably mounted on the mounting plate. A linear drive component for controlling the movement of the placement plate is connected to the mounting plate. A slot for holding a marker pen is provided on the placement plate, with the head of the marker pen pointing towards the base. The slot is open on the side facing the base. The other end of the slot is connected via a traction spring to an elastic sleeve for securing the tail of the marker pen. On the side away from the base, a winding member is provided on the placement plate. The winding member winds up a traction line connected to the elastic sleeve. On the other side of the placement plate, a pen sleeve is provided for covering the pen tip of the dotting pen. The pen sleeve includes a lower base and an upper cover located above the lower base. The lower end of the upper cover is fitted with the upper end face of the lower base. A collection groove for collecting pen ink dripping from the pen tip is opened in the middle of the upper end face of the lower base. A lower drive telescopic cylinder connected to the base is provided on the lower side of the lower base. An upper drive telescopic cylinder connected to the base is provided on the upper side of the upper cover via a connecting frame.
2. The dot-marking device for motor rotor according to claim 1, characterized in that, Slots are provided on both sides of the placement slot. A slide plate with its end extending into the slot is slidably connected in the placement slot. A fixing component for fixing the marker pen is provided on the slide plate. The fixing component includes two fixing plates respectively set in the slot. The fixing plates are rotatably connected to the slide plate through a swing shaft. A torsion spring is sleeved on the swing shaft. The two ends of the torsion spring abut against the slide plate and the fixing plate respectively. A guide groove is provided at the upper end of the fixing plate.
3. The dotting device for marking motor rotors according to claim 2, characterized in that, Both sides of the end of the slide plate that extends into the slot are connected to elastic springs, and the other end of the elastic spring is connected to the side wall of the slot.
4. The dotting device for marking motor rotors according to claim 3, characterized in that, An elastic plate connects the elastic sleeve to the traction spring, and the traction spring is covered with a multi-section telescopic protective sleeve.
5. A dot-marking device for motor rotors according to claim 1, characterized in that, The winding component includes a winding motor mounted on the placement plate, the output end of which is connected to a spool, and the traction line is connected to and wound on the spool.
6. A dot-marking device for motor rotor according to claim 1, characterized in that, The linear drive component is a linear telescopic cylinder mounted on the mounting plate, and the telescopic end of the linear telescopic cylinder is connected to the placement plate.
7. A dot-marking device for motor rotors according to claim 1, characterized in that, The clamping component includes two opposing arc-shaped clamping plates, each with a clamping telescopic cylinder on one side.
8. A dot-marking device for motor rotors according to claim 1, characterized in that, The base is provided with a conveyor belt for transporting motor rotors, and multiple placement areas are provided, which are equally spaced on the conveyor belt.