Motor carbon brush assembly apparatus and control method thereof

Abstract

This invention discloses an assembly device and control method for a motor carbon brush. The assembly device includes: a base; a carbon brush holder; a radial slide rail; a radial slide block that can only slide along the radial slide rail, and the radial slide block has a first tangential groove and a second tangential groove arranged in parallel; a left clamping block with a left protrusion that can only slide along the first tangential groove; a right clamping block with a right protrusion that can only slide along the second tangential groove; a gear whose central axis is fixed to the radial slide block and meshes with the left and right clamping spur teeth; a pin on the radial slide block that can fit into the compression spring of the carbon brush component; and a controller that is electrically connected to a first drive device and a second drive device respectively. The pin can drive the compression spring to insert into the carbon brush holder, and the left and right protrusions can bend the sealing plate of the carbon brush holder towards the central axis of the carbon brush holder. This invention has the advantages of low cost, safety and reliability, convenient assembly, and high working efficiency.

Description

Technical Field

[0001] This invention relates to an assembly device for motor carbon brushes. Background Technology

[0002] Carbon brush assemblies for motors, such as Figure 3 As shown, it consists of a carbon brush 51, a carbon brush holder 5, a flexible wire 52, and a compression spring 4. If the compression spring 4 is inserted by hand, the compression spring 4 is pressed down with tweezers, and finally the sealing piece 55 of the carbon brush holder 5 is bent with needle-nose pliers, this action must be repeated 4 times to complete one product. It is time-consuming and laborious, and each product takes 40 seconds. When mass-producing in the factory, it significantly increases the cost and greatly reduces the production efficiency. Summary of the Invention

[0003] To address the above shortcomings, this invention provides an assembly device for motor carbon brushes, which can effectively improve assembly speed and significantly reduce costs.

[0004] The technical solution of this invention is:

[0005] An assembly device for motor carbon brushes, comprising:

[0006] Base;

[0007] A carbon brush holder is fixed to a base. The carbon brush holder can hold the carbon brush holder into which the carbon brush is inserted, and the carbon brush is led out through a flexible wire.

[0008] Radial slide rail, which is fixed to the base;

[0009] A radial slide block is mounted on a radial slide rail and can only slide along the radial slide rail. The radial slide block has a first tangential groove and a second tangential groove arranged in parallel.

[0010] The left clamping block is L-shaped. The bottom edge of the L-shape is provided with a left clamping straight tooth and a left clamping slide rail. The left clamping slide rail can only slide along the first tangential slide groove. The top of the L-shape is provided with a left protrusion.

[0011] The right clamping block is L-shaped. The bottom edge of the L-shape is provided with a right clamping straight tooth and a right clamping slide rail. The right clamping slide rail can only slide along the second tangential slide groove. The top of the L-shape is provided with a right protrusion.

[0012] The gear has its central shaft fixed to the radial slide, and is located between the left clamping spur and the right clamping spur and meshes with the left clamping spur and the right clamping spur;

[0013] The first driving device can drive the radial slide block to move back and forth along the radial slide rail;

[0014] The second driving device can drive the left clamping block to slide back and forth along the first tangential slide groove, or drive the right clamping block to slide back and forth along the second tangential slide groove.

[0015] The ejector pin has one end fixed to the radial slide, and the other end suspended, which can be fitted into the compression spring of the carbon brush component.

[0016] The controller is electrically connected to the first and second drive devices respectively. The ejector pin can drive the compression spring to insert into the carbon brush holder. The left and right protrusions can bend the sealing plate of the carbon brush holder toward the central axis of the carbon brush holder, thereby fixing the compression spring inside the carbon brush holder.

[0017] Preferably, the first driving device is a first cylinder, the cylinder body of the first cylinder is fixed to the base, the connecting rod of the first cylinder is fixed to the radial slide, the air inlet and outlet of the first cylinder are connected to the air pump through the air path of the first solenoid valve, and the first solenoid valve is electrically connected to the controller; the second driving device is a second cylinder, the cylinder body of the second cylinder is fixed to the radial slide, the connecting rod of the second cylinder is fixed to the left clamping block or the right clamping block, the air inlet and outlet of the second cylinder are connected to the air pump through the air path of the second solenoid valve, and the second solenoid valve is electrically connected to the controller.

[0018] Preferably, the first tangential slide groove is provided with two rails, and correspondingly, the left clamping slide rail is provided with two rails; the second tangential slide groove is provided with two rails, and correspondingly, the right clamping slide rail is provided with two rails.

[0019] Preferably, a limiting block is provided in the middle of the ejector pin, which can limit the compression spring. The limiting block is a protrusion.

[0020] Preferably, the carbon brush holder has two holes, and the two flanges of the carbon brush holder can be inserted into the two holes respectively.

[0021] Preferably, the left and right protrusions are conical blocks.

[0022] Preferably, the assembly equipment is provided in four sets, with the four sets of assembly equipment sharing one controller, and the four carbon brush holders arranged in a cross shape and fixed on the same carbon brush holder.

[0023] Preferably, the controller includes a control panel with control switches. There are usually two control switches connected in series in the circuit, requiring two hands to press them separately to ensure safety.

[0024] Preferably, the carbon brush holder has two symmetrical elongated slots and a T-shaped slot. The flexible wire extends from one of the elongated slots and is electrically connected through the carbon brush hole. The sealing plate is close to the T-shaped slot.

[0025] A control method for an assembly device for motor carbon brushes, comprising the following steps:

[0026] S1. Manually insert the two flanges of the carbon brush holder, which contains the carbon brush and flexible wire, into the two holes of the carbon brush holder;

[0027] S2. Manually insert the compression spring into the ejector pin;

[0028] S3. Activate the dual control switch on the control panel;

[0029] S4. The connecting rod of the first cylinder extends to insert the compression spring and the ejector pin into the carbon brush holder and stay for 3-5 seconds. The connecting rod of the second cylinder extends to bend the sealing plate and fix the compression spring inside the carbon brush holder.

[0030] S5. The connecting rods of the first and second cylinders are reset, completing the assembly and waiting for the next assembly cycle.

[0031] Compared with existing technologies, this invention significantly improves assembly speed. Employees only need to place the carbon brush holder into the carbon brush holder, put the four compression springs into the ejector pins in sequence, and then turn on the switch with both hands. The assembly equipment will automatically complete the actions of inserting the compression springs and bending the sealing sheet, which can increase efficiency to 15 pieces per piece.

[0032] This invention has the advantages of low cost, safety and reliability, convenient assembly and high work efficiency. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0034] Figure 2 This is a schematic diagram of the internal structure of the present invention.

[0035] Figure 3 This is a schematic diagram of the carbon brush structure of the present invention.

[0036] Figure 4 This is a schematic diagram of the structure of the left clamping block of the carbon brush holder of the present invention. Detailed Implementation

[0037] The present invention will now be further described with reference to the accompanying drawings:

[0038] like Figure 1-4 As shown, an assembly device for motor carbon brushes includes:

[0039] Base 2;

[0040] The carbon brush holder 6 is fixed to the base 2. The carbon brush holder 6 can fix the carbon brush 51 inserted into the carbon brush holder 5. The carbon brush 51 is led out through the flexible wire 52.

[0041] Radial slide rail 31, which is fixed to base 2;

[0042] A radial slide block 32 is mounted on a radial slide rail 31 and can only slide along the radial slide rail 31. A first tangential groove 322 and a second tangential groove 323 are provided on the radial slide block 32 in parallel arrangement.

[0043] The left clamping block 33 is L-shaped. The bottom edge of the L-shape is provided with a left clamping straight tooth and a left clamping slide rail. The left clamping slide rail can only slide along the first tangential slide groove 322. The top of the L-shape is provided with a left protrusion 331.

[0044] The right clamping block 35 is L-shaped. The bottom edge of the L-shape is provided with a right clamping straight tooth and a right clamping slide rail. The right clamping slide rail can only slide along the second tangential slide groove 323. The top of the L-shape is provided with a right protrusion.

[0045] Gear 34, whose central axis is fixed to radial slide 32, is located between and meshes with the left clamping spur tooth and the right clamping spur tooth; when either the left clamping spur tooth or the right clamping spur tooth is driven to move, the left clamping block 33 and the right clamping block 35 can move towards each other or in opposite directions, and the left protrusion 331 and the right protrusion can clamp the sealing piece 55 or release the carbon brush holder 5;

[0046] The first driving device 11 can drive the radial slide block 32 to move back and forth along the radial slide rail 31;

[0047] The second driving device 12 can drive the left clamping block 33 to slide back and forth along the first tangential slide groove 322, or drive the right clamping block 35 to slide back and forth along the second tangential slide groove 323.

[0048] The ejector pin 321 has one end fixed to the radial slide 32 and the other end suspended, and the suspended end can be fitted into the compression spring 4 of the carbon brush component.

[0049] Controller 7, which is electrically connected to the first drive device 11 and the second drive device 12 respectively, allows the ejector pin 321 to drive the compression spring 4 to insert into the carbon brush holder 5, as shown below. Figure 3 As shown, the left protrusion 331 and the right protrusion can bend the sealing piece 55 of the carbon brush holder 5 toward the central axis of the carbon brush holder 5, as... Figure 4 As shown, this allows the compression spring 4 to be fixed inside the brush holder 5.

[0050] The assembly equipment of this invention mainly completes the assembly of the compression spring 4 and the carbon brush holder 5, and the sealing piece 55 is bent. The controller 7 can realize various actions through software programming.

[0051] In a preferred embodiment, the first driving device 11 is a first cylinder, the cylinder body of the first cylinder is fixed to the base 2, the connecting rod of the first cylinder is fixed to the radial slide 32, the air inlet and outlet of the first cylinder are connected to the air pump through the air path of the first solenoid valve, and the first solenoid valve is electrically connected to the controller 7; the second driving device 12 is a second cylinder, the cylinder body of the second cylinder is fixed to the radial slide 32, the connecting rod of the second cylinder is fixed to the left clamping block 33 or the right clamping block 35, the air inlet and outlet of the second cylinder are connected to the air pump through the air path of the second solenoid valve, and the second solenoid valve is electrically connected to the controller 7.

[0052] Cylinders are a common type of drive device and are characterized by safety and reliability. Other drive devices such as linear motors can also be selected.

[0053] To increase stability, the first tangential slide groove 322 is provided with two rails, and correspondingly, the left clamping slide rail is provided with two rails; the second tangential slide groove 323 is provided with two rails, and correspondingly, the right clamping slide rail is provided with two rails.

[0054] Furthermore, a limiting block is provided in the middle of the ejector pin 321, which can limit the compression spring 4. This technical solution allows space for the left protrusion 331, right protrusion 331 and ejector pin 321 to move independently without affecting their respective actions.

[0055] For ease of assembly, the carbon brush holder 6 has two holes, and the two flanges 53 of the carbon brush holder 5 can be inserted into the two holes respectively. Usually, the holes are rectangular in shape.

[0056] Preferably, the left protrusion 331 and the right protrusion are conical blocks.

[0057] To improve production efficiency, four sets of assembly equipment are set up. The four sets of assembly equipment share a single controller. The four carbon brush holders 5 are arranged in a cross shape and fixed on the same carbon brush holder 6.

[0058] The controller 7 includes a control panel 71, on which a series of dual control switches are installed.

[0059] like Figure 3 and Figure 4 As shown, the carbon brush holder 5 has two symmetrical long slots 54 and a T-shaped slot 56. The flexible wire 52 extends from one of the long slots 54 and passes through the carbon brush 51 hole for electrical connection. The sealing piece 55 is close to the T-shaped slot 56. This shape facilitates the deformation of the sealing piece 55 when it is bent. At the same time, it can position the compression spring 4 from the four corners.

[0060] A control method for an assembly device for motor carbon brushes, comprising the following steps:

[0061] S1. Manually insert the two flanges 53 of the carbon brush holder 5, which is equipped with carbon brush 51 and flexible wire 52, into the two holes of the carbon brush holder 6.

[0062] S2. Manually insert the compression spring 4 into the ejector pin 321;

[0063] S3. Activate the dual control switch on the control panel 71;

[0064] S4. The connecting rod of the first cylinder extends to insert the compression spring 4 and the ejector pin 321 into the carbon brush holder 5 and stay for 3-5 seconds to allow time for subsequent actions. The connecting rod of the second cylinder extends to bend the sealing piece 55 and fix the compression spring 4 inside the carbon brush holder 5.

[0065] S5. The connecting rods of the first and second cylinders are reset, completing the assembly and waiting for the next assembly cycle.

Claims

1. An assembly device for motor carbon brushes, characterized in that, include: Base (2); A carbon brush holder (6) is fixed to a base (2). The carbon brush holder (6) can fix the carbon brush holder (5) into which the carbon brush (51) is inserted. The carbon brush (51) is led out through a flexible wire (52). Radial slide rail (31), which is fixed to the base (2); A radial slide block (32) is mounted on a radial slide rail (31) and can only slide along the radial slide rail (31). The radial slide block (32) has a first tangential groove (322) and a second tangential groove (323) arranged in parallel. The left clamping block (33) is L-shaped. The bottom edge of the L-shape is provided with a left clamping straight tooth and a left clamping slide rail. The left clamping slide rail can only slide along the first tangential slide groove (322). The top of the L-shape is provided with a left protrusion (331). The right clamping block (35) is L-shaped. The bottom edge of the L-shape is provided with a right clamping straight tooth and a right clamping slide rail. The right clamping slide rail can only slide along the second tangential slide groove (323). The top of the L-shape is provided with a right protrusion. Gear (34), whose central axis is fixed to the radial slide (32), gear (34) is located between the left clamping spur and the right clamping spur and meshes with the left clamping spur and the right clamping spur; The first drive device (11) can drive the radial slide (32) to move back and forth along the radial slide rail (31); The second drive device (12) can drive the left clamping block (33) to slide back and forth along the first tangential groove (322), or drive the right clamping block (35) to slide back and forth along the second tangential groove (323); The ejector pin (321) has one end fixed to the radial slide (32) and the other end suspended, and the suspended end can be fitted into the compression spring (4) of the carbon brush component. The controller (7) is electrically connected to the first drive device (11) and the second drive device (12) respectively. The ejector pin (321) can drive the compression spring (4) to insert into the carbon brush holder (5). The left protrusion (331) and the right protrusion can bend the sealing piece (55) of the carbon brush holder (5) toward the central axis of the carbon brush holder (5), thereby fixing the compression spring (4) inside the carbon brush holder (5).

2. The motor carbon brush assembly equipment as described in claim 1, characterized in that, The first driving device (11) is a first cylinder. The cylinder body of the first cylinder is fixed to the base (2). The connecting rod of the first cylinder is fixed to the radial slide (32). The air inlet and outlet of the first cylinder are connected to the air pump through the air path of the first solenoid valve. The first solenoid valve is electrically connected to the controller (7). The second driving device (12) is a second cylinder. The cylinder body of the second cylinder is fixed to the radial slide (32). The connecting rod of the second cylinder is fixed to the left clamping block (33) or the right clamping block (35). The air inlet and outlet of the second cylinder are connected to the air pump through the air path of the second solenoid valve. The second solenoid valve is electrically connected to the controller (7).

3. The motor carbon brush assembly equipment as described in claim 1, characterized in that, The first tangential slide groove (322) is provided with two rails, and correspondingly, the left clamping slide rail is provided with two rails; the second tangential slide groove (323) is provided with two rails, and correspondingly, the right clamping slide rail is provided with two rails.

4. The motor carbon brush assembly equipment as described in claim 1, characterized in that, A limiting block is provided in the middle of the ejector pin (321), which can limit the compression spring (4).

5. The motor carbon brush assembly equipment as described in claim 1, characterized in that, The carbon brush holder (6) has two holes, and the two flanges (53) of the carbon brush holder (5) can be inserted into the two holes respectively.

6. The motor carbon brush assembly equipment as described in claim 1, characterized in that, The left convex block (331) and the right convex block are conical blocks.

7. An assembly device for motor carbon brushes as described in any one of claims 1-6, characterized in that, The assembly equipment is provided in four sets, and the four sets of assembly equipment share one controller. The four carbon brush holders (5) are arranged in a cross shape and fixed on the same carbon brush holder (6).

8. The motor carbon brush assembly equipment as described in claim 7, characterized in that, The controller (7) includes a control panel (71), on which a double control switch connected in series in the circuit is provided.

9. An assembly device for motor carbon brushes as described in any one of claims 1-6, characterized in that, The carbon brush holder (5) has two symmetrical long slots (54) and a T-shaped slot (56). The flexible wire (52) extends out from one of the long slots (54) and is electrically connected to the carbon brush (51) hole. The sealing plate (55) is close to the T-shaped slot (56).

10. A control method for an assembly equipment for motor carbon brushes as described in any one of claims 1-9, characterized in that, Follow these steps: S1. Manually insert the two flanges (53) of the carbon brush holder (5) which is equipped with carbon brushes (51) and flexible wires (52) into the two holes of the carbon brush holder (6); S2. Manually insert the compression spring (4) into the ejector pin (321); S3. Activate the dual control switch on the control panel (71); S4. The connecting rod of the first cylinder extends to insert the compression spring (4) and the ejector pin (321) into the carbon brush holder (5) and stay for 3-5 seconds. The connecting rod of the second cylinder extends to bend the sealing piece (55) and fix the compression spring (4) inside the carbon brush holder (5). S5. The connecting rods of the first and second cylinders are reset, completing the assembly and waiting for the next assembly cycle.

Images