A commutator detection positioning mechanism
Patent Information
- Application Number
- CN202522313065.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-30
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-10-30
AI Technical Summary
In existing technologies, low-height flat commutators have poor transmission stability when placed horizontally, making accurate positioning and subsequent detection difficult.
An adjustment mechanism including a pushing component and a positioning component is adopted. The pushing component pushes the commutator into the chute, and the positioning block and the hook abut against each other to make it rotate. With the help of the pressing elastic element, precise positioning is achieved, ensuring that the commutator is stably pressed against the inner wall of the chute during vertical placement.
This technology enables vertical placement and automatic calibration of flat commutators, improving the stability and accuracy of testing, avoiding material jamming and misalignment issues, and ensuring the smooth progress of subsequent testing.
Smart Images
Figure CN224934039U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of commutator detection devices, and more particularly to a positioning mechanism for commutator detection. Background Technology
[0002] The commutator is a crucial component of the armature of DC motors and AC commutator motors. Its core function is to automatically change the direction of current in the rotor windings as the motor rotates. Commutators are primarily used in brushed DC motors and are applied in fields such as toy motors and power tools.
[0003] Before leaving the factory, commutators need to undergo testing in various aspects, including outer diameter, resistance, inner diameter, inter-plate spacing, height, and bends. Existing commutators with higher height (i.e., larger axial dimensions) are often placed horizontally (i.e., the central axis of the commutator extends horizontally) for transmission and testing. However, commutators with lower height, or flatter ones, have poor transmission stability when placed horizontally.
[0004] Therefore, relatively flat commutators are usually placed vertically for transmission. In order to facilitate subsequent testing (such as hook testing), the commutator needs to be accurately positioned. Therefore, the vertical commutator needs to be calibrated and positioned before proceeding to the formal testing steps. Utility Model Content
[0005] To enable vertical placement and transport of flat commutators, this application provides a positioning mechanism for commutator detection.
[0006] This application provides a positioning mechanism for commutator detection, which adopts the following technical solution: A commutator detection positioning mechanism includes an adjustment mechanism. The adjustment mechanism includes a pusher assembly and a positioning assembly. The positioning assembly includes a positioning seat and a positioning block slidably disposed on the positioning seat. The positioning assembly has a groove for inserting and sliding a commutator. The groove extends along the arrangement direction of the pusher assembly and the positioning assembly. The positioning block extends into the groove. A pressing elastic member is connected between the positioning block and the positioning seat to allow the positioning block to slide to press the commutator against the groove wall. The pusher assembly pushes the commutator into the groove. When the pusher assembly pushes the commutator to move along the groove, the positioning block abuts against the hook of the commutator and causes the commutator to rotate. The positioning block moves relative to the commutator between two adjacent hooks of the commutator.
[0007] By adopting the above technical solution, the pusher assembly pushes the commutator into the chute and moves along it. When the commutator moves to the point where one of the hooks abuts against the positioning block, it rotates under the pusher assembly's push. The commutator pushes the positioning block to overcome the elastic force of the pressure-bearing elastic element, causing the commutator and positioning block to move relative to each other until they are positioned between two adjacent hooks. The positioning block then resets under the action of the pressure-bearing elastic element, thus completing the commutator's position correction. By setting an adjustment mechanism including the pusher assembly and the positioning assembly, the flat commutator can be vertically placed, automatically pushed into the chute, and precisely positioned. Under the action of the pressure-bearing elastic element, the positioning block stably presses the commutator against the inner wall of the chute. Simultaneously, during the pusher process, it interacts with the hooks of the commutator, causing them to rotate and ultimately locking the positioning block between adjacent hooks. This achieves automatic correction and accurate positioning of the commutator, providing a stable attitude basis for subsequent testing.
[0008] Optionally, the positioning assembly further includes a movable plate slidably disposed on the positioning seat, the positioning block being located on the movable plate, the pressing elastic element being connected between the movable plate and the positioning seat, and the positioning seat having a sliding groove for inserting and sliding the commutator, the sliding groove penetrating the surface of the positioning seat near the movable plate, the sliding groove being formed by the groove wall of the sliding groove and the surface of the movable plate.
[0009] By adopting the above technical solution, the positioning block is set on a sliding movable plate. The larger movable plate replaces the smaller positioning block, thus achieving synchronous sliding of the positioning blocks and preventing deflection caused by the positioning block sliding alone. The sliding groove and the movable plate together form a sliding groove, facilitating the insertion and sliding of the commutator while ensuring the continuous pressure of the positioning block on the commutator, improving positioning accuracy and reliability, and simplifying the structure.
[0010] Optionally, the positioning block has an abutting arc surface that bends away from the moving plate and is used to slide against the hook of the commutator.
[0011] By adopting the above technical solution, a contact arc surface that bends away from the moving plate is set on the positioning block, so that it can make smooth sliding contact with the hook of the commutator, reducing friction and jamming, ensuring that the commutator rotates smoothly and without error, and improving the operational stability and service life of the mechanism.
[0012] Optionally, the pushing assembly includes a pushing drive source and a pushing component. The pushing drive source is used to drive the pushing component to push the commutator to slide. Two limiting blocks are formed on the pushing component, and the opposing surfaces of the two limiting blocks are used to abut against the circumferential sidewall of the commutator.
[0013] By adopting the above technical solution, two opposing limiting blocks are set on the pusher component, which can effectively limit the circumferential sidewall of the commutator during the pushing process, prevent it from deviating or tilting during the pushing into the chute, ensure that the commutator enters the chute in the correct posture, and improve the pushing accuracy and positioning success rate.
[0014] Optionally, the pushing assembly includes a pushing drive source and a pushing component. The pushing drive source is used to drive the pushing component to push the commutator to slide. The pushing component is provided with a pressing block, which is positioned above the commutator.
[0015] By adopting the above technical solution, a pressure block is set on the pusher component and positioned above the commutator. This block can press down on the commutator from above during the pushing process, preventing it from jumping or tipping over due to vibration or inertia, and further enhancing the stability of the vertical commutator during transmission and positioning.
[0016] Optionally, it also includes a feeding mechanism and a blocking mechanism. The feeding mechanism includes a conveyor belt for conveying the commutator to the pushing assembly. The conveyor belt is perpendicular to the vertical direction and perpendicular to the extension direction of the chute. The blocking mechanism and the pushing assembly are arranged along the conveyor belt. The blocking mechanism is used to block the commutator.
[0017] By adopting the above technical solution and setting up a feeding mechanism and a blocking mechanism including a conveyor belt, automated continuous feeding of commutators is achieved. The blocking mechanism can control the release of commutators one by one, ensuring that the pushing component processes only one commutator at a time, thereby improving the orderliness of feeding and detection efficiency.
[0018] Optionally, the blocking mechanism includes a blocking drive source and a blocking member. The blocking drive source is used to drive the blocking member to move along the extension direction of the chute. The blocking member is provided with a front stop and a rear stop. The front stop and the rear stop are arranged along the conveying direction of the conveyor belt, and the rear stop and the front stop are arranged along the direction in which the pusher assembly pushes the commutator. When the blocking member moves to the point where the front stop is in the transmission path of the commutator, the rear stop exits the transmission path of the commutator. When the blocking member moves to the point where the rear stop is in the transmission path of the commutator, the front stop exits the transmission path of the commutator.
[0019] By adopting the above technical solution, a blocking mechanism including a front stop and a rear stop is set up, and the blocking drive source drives it to move along the chute direction, realizing the alternating blocking and release of the commutator. The front stop and the rear stop work together to ensure that the commutator is separated one by one on the conveyor belt, avoiding interference or jamming problems caused by multiple commutators entering the pushing area at the same time.
[0020] Optionally, the feeding mechanism further includes a pressure bar, which is located above the conveyor belt, such that the commutator is located between the pressure bar and the conveyor belt.
[0021] By adopting the above technical solution, a pressure bar is set above the conveyor belt in the feeding mechanism, so that the commutator is restricted between the pressure bar and the conveyor belt during the transmission process, effectively preventing it from tilting or shifting due to the operation of the conveyor belt or external vibration, and ensuring the attitude stability of the vertical commutator during the transmission process.
[0022] Optionally, the pushing assembly includes a pushing drive source and a pushing component. The pushing component is provided with a baffle, which includes a blocking surface. The blocking surface is perpendicular to the transmission direction of the conveyor belt and is used to abut against the commutator.
[0023] By adopting the above technical solution, a baffle with a vertical blocking surface is set on the pusher, so that it can come into contact with the front of the commutator. Before pushing the material, the commutator is initially positioned and blocked, ensuring that the commutator is accurately aligned at the starting position of the pusher, and providing good initial conditions for subsequent pushing into the chute.
[0024] Optionally, the surface of the positioning seat near the pusher assembly is the opening surface of the chute, and the bottom wall of the chute is the contact surface. When the positioning block is located between two adjacent hooks, the contact surface contacts the commutator.
[0025] By adopting the above technical solution, the surface of the positioning seat near the pusher assembly is set as the opening surface of the chute, and the bottom wall of the chute is used as the contact surface. When the positioning block is inserted between the adjacent hooks of the commutator, the contact surface contacts the commutator body, providing stable support and positioning reference, ensuring that the commutator maintains a fixed posture during the testing process, and improving the testing accuracy and consistency.
[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting an adjustment mechanism including a pushing component and a positioning component, it is possible to achieve vertical placement of the flat commutator, automatic pushing into the chute and precise positioning, providing a stable posture basis for subsequent testing; 2. Effectively limit the circumferential sidewall of the commutator during the feeding process to prevent it from shifting or tilting during the feeding process, ensuring that the commutator enters the chute in the correct posture, and improving feeding accuracy and positioning success rate. 3. The front and rear stops work together to ensure that the commutators are separated one by one on the conveyor belt, avoiding interference or jamming caused by multiple commutators entering the pushing area at the same time. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the structure of this application.
[0028] Figure 2 yes Figure 1 Enlarged view of point A in the middle.
[0029] Figure 3 This is a schematic diagram of the structure of the pressure bar highlighted in this application.
[0030] Figure 4 This is a schematic diagram of the blocking mechanism in this application.
[0031] Figure 5 This is a schematic diagram of the material pusher assembly in this application.
[0032] Explanation of reference numerals in the attached drawings: 1. Adjustment mechanism; 11. Pushing assembly; 111. Pushing drive source; 112. Pushing component; 113. Limiting block; 114. Pressing block; 115. Baffle; 116. Blocking surface; 117. Limiting surface; 12. Positioning assembly; 121. Positioning seat; 122. Positioning block; 123. Slide groove; 124. Pressing elastic component; 125. Moving plate; 126. Sliding groove; 127. Contact arc surface; 128. Contact surface; 129. Contact inclined surface; 2. Feeding mechanism; 21. Conveyor belt; 22. Pressing rod; 3. Blocking mechanism; 31. Blocking drive source; 32. Blocking component; 33. Front stop; 34. Rear stop. Detailed Implementation
[0033] The following combination Figures 1-5 This application will be described in further detail.
[0034] This application discloses a positioning mechanism for commutator detection. (Refer to...) Figure 1 and Figure 2 The commutator detection positioning mechanism includes an adjustment mechanism 1, which includes a pusher assembly 11 and a positioning assembly 12. The positioning assembly 12 includes a positioning seat 121 and a positioning block 122 slidably disposed on the positioning seat 121. A groove 123 is formed on the positioning assembly 12 for the commutator to be inserted and slidably. The groove 123 extends along the arrangement direction of the pusher assembly 11 and the positioning assembly 12. The positioning block 122 extends into the groove 123, and a pressing elastic member 124 is connected between the positioning block 122 and the positioning seat 121 to allow the positioning block 122 to slide to press the commutator against the groove wall of the groove 123. The pusher assembly 11 pushes the commutator into the groove 123. When the pusher assembly 11 pushes the commutator to move along the groove 123, the positioning block 122 abuts against the hooks of the commutator, causing the commutator to rotate. The positioning block 122 moves relative to the commutator between two adjacent hooks.
[0035] Reference Figure 3The commutator detection positioning mechanism also includes a feeding mechanism 2, which includes a conveyor belt 21 for transporting the commutator. The feeding mechanism 2 also includes a pressure bar 22, which is located above the conveyor belt 21 and extends along the transport direction of the conveyor belt 21. When the conveyor belt 21 transports the commutator, the commutator is located between the pressure bar 22 and the conveyor belt 21. The pressure bar 22 is used to prevent the commutator from tilting during transport.
[0036] Reference Figure 3 and Figure 4 The positioning mechanism for commutator detection also includes a blocking mechanism 3. The blocking mechanism 3 and the pushing assembly 11 are arranged along the transmission direction of the conveyor belt 21. The blocking mechanism 3 includes a blocking drive source 31 and a blocking element 32. The blocking drive source 31 is a cylinder, and the telescopic rod of the blocking drive source 31 is fixedly connected to the blocking element 32, thereby driving the blocking element 32 to move in a direction perpendicular to the vertical direction and perpendicular to the transmission direction of the conveyor belt 21. In other embodiments, the blocking drive source 31 can be a hydraulic cylinder or a motor; any method that can drive the blocking element 32 to move is acceptable.
[0037] Reference Figure 3 and Figure 4 A front stop 33 and a rear stop 34 are fixedly mounted on the blocking member 32 via bolt assemblies. Both the front stop 33 and the rear stop 34 are used to abut against the hooks on the circumferential sidewall of the commutator. The front stop 33 and the rear stop 34 are arranged along the conveying direction of the conveyor belt 21, and the rear stop 34 and the front stop 33 are arranged along the direction in which the pusher assembly 11 pushes the commutator. When the blocking member 32 moves to the point where the front stop 33 is in the transmission path of the commutator, the rear stop 34 exits the transmission path of the commutator. When the blocking member 32 moves to the point where the rear stop 34 is in the transmission path of the commutator, the front stop 33 exits the transmission path of the commutator, thereby realizing the sequential feeding of the commutator.
[0038] Reference Figure 5 The pushing assembly 11 includes a pushing drive source 111 and a pushing component 112. The pushing drive source 111 is a cylinder, and the telescopic rod of the pushing drive source 111 is fixedly connected to the pushing component 112, thereby driving the pushing component 112 to move in a direction perpendicular to the vertical direction and perpendicular to the transmission direction of the conveyor belt 21. In other embodiments, the pushing drive source 111 can be a hydraulic cylinder or a motor; any method that can drive the pushing component 112 to move is acceptable. The pushing component 112 is used to abut against and push the commutator.
[0039] Reference Figure 3 and Figure 5The pusher 112 is aligned with the chute 123 in its moving direction. A baffle 115 is fixedly mounted on the pusher 112 by a bolt assembly. The baffle 115 includes a blocking surface 116, which is perpendicular to the conveying direction of the conveyor belt 21. The blocking surface 116 is used to abut against the commutator.
[0040] Reference Figure 5 The pusher component 112 has two integrally formed limiting blocks 113. The opposing surfaces of the two limiting blocks 113 are both limiting surfaces 117, which are used to abut against the hooks on the circumferential sidewall of the commutator. Both limiting surfaces 117 extend at an angle and are arranged symmetrically. The distance between the two limiting surfaces 117 increases along the direction in which the pusher component 112 pushes the commutator.
[0041] Reference Figure 3 and Figure 5 A pressure block 114 is also fixedly mounted on the pusher 112 by a bolt assembly. The pressure block 114 is located above the conveyor belt 21. When the pusher 112 pushes the commutator, the commutator is located below the pressure block 114.
[0042] Reference Figure 1 and Figure 2 The positioning assembly 12 also includes a movable plate 125 slidably mounted on the positioning seat 121 along the conveying direction of the conveyor belt 21. A positioning block 122 is integrally formed on the movable plate 125. A sliding groove 126 extending along the arrangement direction of the pusher assembly 11 and the positioning assembly 12 is formed on the surface of the positioning seat 121 near the pusher assembly 11. The sliding groove 126 is used for the insertion and sliding of the commutator, and it penetrates the surface of the positioning seat 121 near the movable plate 125. A groove 123 is formed by the groove wall of the sliding groove 126 and the surface of the movable plate 125.
[0043] Reference Figure 2 The bottom wall of the slide 123 is the contact surface 128. When the positioning block 122 is located between two adjacent hooks, the contact surface 128 contacts the commutator.
[0044] Reference Figure 2 A spring groove for mounting the pressure elastic member 124 is provided on the surface of the movable plate 125 away from the slide groove 123. The pressure elastic member 124 is connected between the bottom wall of the spring groove and the positioning seat 121. The pressure elastic member 124 is a compression spring.
[0045] Reference Figure 2 On the two opposing surfaces of the positioning block 122, there are two abutting inclined surfaces 129, which are arranged along the extending direction of the slide groove 123. The distance between the two abutting inclined surfaces 129 decreases along the arrangement direction of the moving plate 125 and the slide groove 123. The abutting inclined surfaces 129 are used to abut against two adjacent hooks and can adapt to the included angle between the adjacent surfaces of the two hooks.
[0046] Reference Figure 2 Both abutting inclined surfaces 129 have abutting arc surfaces 127 formed on them. The abutting arc surfaces 127 are bent in the direction away from the moving plate 125. The abutting arc surfaces 127 are used to slide against the hook of the commutator.
[0047] The implementation principle of a positioning mechanism for commutator detection in this application embodiment is as follows: the conveyor belt 21 feeds and transports commutators. The commutator in front moves to contact the front stop 33. The blocking drive source 31 drives the blocking member 32 to move along the arrangement direction of the pushing assembly 11 and the positioning assembly 12, so that the front stop 33 exits the transmission path of the commutator. At the same time, the rear stop 34 enters the transmission path of the commutator to block the commutator in front. The blocking drive source 31 drives the blocking member 32 to retract, so that the front stop 33 re-enters the transmission path of the commutator to block the second commutator. The rear stop 34 exits the transmission path of the commutator, so that the commutator in front can continue to move with the conveyor belt 21. The commutator moves forward until it contacts the baffle 115. The pusher drive source 111 drives the pusher 112 to move along the arrangement direction of the pusher assembly 11 and the positioning assembly 12, pushing the commutator into the slide groove 123. The hook of the commutator slides against the positioning block 122, causing the commutator to rotate. The moving plate 125 slides slightly away from the slide groove 123 until the commutator moves under the push of the pusher 112 to contact the contact surface 128. At this time, the positioning block 122 is located between two adjacent hooks. The moving plate 125 slides back to its original position, accurately positioning the commutator.
[0048] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A positioning mechanism for commutator detection, characterized in that: The system includes an adjustment mechanism (1), which comprises a pusher assembly (11) and a positioning assembly (12). The positioning assembly (12) includes a positioning seat (121) and a positioning block (122) slidably disposed on the positioning seat (121). The positioning assembly (12) has a groove (123) for inserting and sliding a commutator. The groove (123) extends along the arrangement direction of the pusher assembly (11) and the positioning assembly (12). The positioning block (122) extends into the groove (123). 122) is connected to the positioning seat (121) and is a pressing elastic element (124) for sliding the positioning block (122) to press the commutator against the groove wall of the slide (123). The pushing assembly (11) is used to push the commutator into the slide (123). When the pushing assembly (11) pushes the commutator to move along the slide (123), the positioning block (122) is used to abut against the hook of the commutator and cause the commutator to rotate. The positioning block (122) is used to move relative to the commutator between two adjacent hooks of the commutator.
2. The positioning mechanism for commutator detection according to claim 1, characterized in that: The positioning component (12) further includes a movable plate (125) slidably disposed on the positioning seat (121), the positioning block (122) is located on the movable plate (125), the pressing elastic element (124) is connected between the movable plate (125) and the positioning seat (121), the positioning seat (121) is provided with a sliding groove (126) for the commutator to be inserted and slid, the sliding groove (126) penetrates the surface of the positioning seat (121) near the movable plate (125), and the sliding groove (123) is formed by the groove wall of the sliding groove (126) and the surface of the movable plate (125).
3. The positioning mechanism for commutator detection according to claim 1, characterized in that: The positioning block (122) has an abutting arc surface (127) formed on it. The abutting arc surface (127) is bent in a direction away from the moving plate (125). The abutting arc surface (127) is used to slide against the hook of the commutator.
4. A positioning mechanism for commutator detection according to claim 1, characterized in that: The pusher assembly (11) includes a pusher drive source (111) and a pusher component (112). The pusher drive source (111) is used to drive the pusher component (112) to push the commutator to slide. Two limiting blocks (113) are formed on the pusher component (112). The opposing surfaces of the two limiting blocks (113) are used to abut against the circumferential sidewall of the commutator.
5. A positioning mechanism for commutator detection according to claim 1, characterized in that: The pusher assembly (11) includes a pusher drive source (111) and a pusher component (112). The pusher drive source (111) is used to drive the pusher component (112) to push the commutator to slide. The pusher component (112) is provided with a pressure block (114), which is located above the commutator.
6. A positioning mechanism for commutator detection according to claim 1, characterized in that: It also includes a feeding mechanism (2) and a blocking mechanism (3). The feeding mechanism (2) includes a conveyor belt (21) for conveying the commutator to the pusher assembly (11). The conveying direction of the conveyor belt (21) is perpendicular to the vertical direction and perpendicular to the extension direction of the chute (123). The blocking mechanism (3) and the pusher assembly (11) are arranged along the conveying direction of the conveyor belt (21). The blocking mechanism (3) is used to block the commutator.
7. A positioning mechanism for commutator detection according to claim 6, characterized in that: The blocking mechanism (3) includes a blocking drive source (31) and a blocking member (32). The blocking drive source (31) is used to drive the blocking member (32) to move along the extension direction of the slide (123). The blocking member (32) is provided with a front stop (33) and a rear stop (34). The front stop (33) and the rear stop (34) are arranged along the conveying direction of the conveyor belt (21), and the rear stop (34) and the front stop (33) are arranged along the direction in which the pusher assembly (11) pushes the commutator. When the blocking member (32) moves to the point where the front stop (33) is in the transmission path of the commutator, the rear stop (34) exits the transmission path of the commutator. When the blocking member (32) moves to the point where the rear stop (34) is in the transmission path of the commutator, the front stop (33) exits the transmission path of the commutator.
8. A positioning mechanism for commutator detection according to claim 6, characterized in that: The feeding mechanism (2) also includes a pressure bar (22), which is located above the conveyor belt (21), so that the commutator is located between the pressure bar (22) and the conveyor belt (21).
9. A positioning mechanism for commutator detection according to claim 6, characterized in that: The feeding assembly (11) includes a feeding drive source (111) and a feeding component (112). The feeding component (112) is provided with a baffle (115). The baffle (115) includes a blocking surface (116). The blocking surface (116) is perpendicular to the transmission direction of the conveyor belt (21). The blocking surface (116) is used to abut against the commutator.
10. A positioning mechanism for commutator detection according to claim 1, characterized in that: The surface of the positioning seat (121) near the pusher assembly (11) is the opening surface of the chute (123), and the bottom wall of the chute (123) is the contact surface (128). When the positioning block (122) is located between two adjacent hooks, the contact surface (128) contacts the commutator.