Wire self-centering positioning mechanism

Abstract

The utility model discloses a kind of wire rod self-centering positioning mechanisms, belong to washing machine drum coil technical field.This kind of wire rod self-centering positioning mechanism, including main body, clamping mechanism and auxiliary mechanism, main body includes mounting disc, the center of mounting disc is rotatably connected with gear ring, the outside of gear ring is installed with a plurality of first connecting shaft along its axis, first connecting shaft is rotatably connected with connecting rod on it;Auxiliary mechanism includes a plurality of slide rails, a plurality of slide rails are arranged on the side of mounting disc, a plurality of slide rails are arranged along the axis of mounting disc, slidingly installed with moving frame on slide rail, the side of moving frame is fixedly installed with claw, the side of moving frame close to claw is fixedly installed with second connecting shaft, the other end of connecting rod is rotatably connected with second connecting shaft;Clamping mechanism includes mounting bracket, the side of mounting bracket is connected with the upper end of the side of mounting disc, the utility model, can effectively improve the practicality of wire rod self-centering positioning mechanism, with higher practical value.

Description

Technical Field

[0001] This utility model relates to the field of washing machine drum coil technology, specifically a wire self-centering positioning mechanism. Background Technology

[0002] In the manufacturing of core components for washing machines, the drum coil (mostly made of high-strength steel wire) is a key structure that ensures the stability of the drum support and the balance of its operation. Through hooks or connecting parts formed by winding at both ends, it works in conjunction with the washing machine's inner drum support and shock absorption system to bear the load and buffer vibrations when the drum rotates at high speed. Therefore, the precision of the winding at both ends of the coil directly determines the assembly quality.

[0003] Based on the above, the inventors have discovered the following problems: Existing washing machine drum coil winding equipment has significant positioning defects and generally lacks a dedicated self-centering mechanism. The wire is fixed by simple clamps or manual assistance, which makes it easy for the two ends of the wire coil to deviate radially or tilt axially during the winding process, making it difficult to meet the accuracy requirements.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a wire self-centering positioning mechanism in order to achieve a more practical purpose. Utility Model Content

[0005] The purpose of this utility model is to provide a wire self-centering positioning mechanism to solve the problem mentioned in the background art that existing washing machine drum coil winding equipment has significant positioning defects and generally lacks a dedicated self-centering mechanism.

[0006] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0007] A wire self-centering and positioning mechanism includes a main body, a clamping mechanism, and an auxiliary mechanism. The main body includes a mounting plate, a gear ring rotatably connected to the center of the mounting plate, and a plurality of first connecting shafts circumferentially mounted on the outer side of the gear ring along its axis. Each of the first connecting shafts is rotatably connected to a connecting rod. The auxiliary mechanism includes a plurality of slide rails, which are disposed on one side of the mounting plate and circumferentially arranged along the axis of the mounting plate. Each slide rail has a movable frame slidably mounted on it. A latch is fixedly mounted on one side of the movable frame, and a second connecting shaft is fixedly mounted on the side of the movable frame near the latch. The other end of the connecting rod is rotatably connected to the second connecting shaft. The clamping mechanism includes a mounting frame, one side of which is connected to the upper end of one side of the mounting plate, and a limit frame is fixedly mounted at the center of the inner part of the mounting frame.

[0008] Furthermore, the mounting plate has an arc-shaped groove on the side near the gear ring, and a slider is slidably installed inside the arc-shaped groove, with one end of the slider fixedly connected to one side of the gear ring.

[0009] The beneficial effect of adopting the above-mentioned further solution is that the arc groove provides sliding guidance for the slider, restricts the rotation trajectory of the gear ring, ensures that the gear ring rotates smoothly along the center of the mounting plate, and avoids misalignment that could lead to inaccurate positioning of the latch.

[0010] Furthermore, a transmission gear is rotatably connected to one side of the mounting plate below the gear ring, and a drive gear is rotatably connected to one side of the mounting plate below the transmission gear.

[0011] The beneficial effect of adopting the above-mentioned further solution is that the transmission gear and the drive gear form a reduction transmission structure, which reduces the output speed of the servo motor and increases the torque, making the gear ring rotate more smoothly and improving the controllability of the clamping and releasing of the pawl.

[0012] Furthermore, the drive gear meshes with the transmission gear, and the transmission gear meshes with the gear ring.

[0013] The beneficial effect of adopting the above-mentioned further solution is that the drive gear drives the gear ring to rotate through the transmission gear, thereby achieving smooth power transmission, ensuring that the gear ring drives all the latches to move synchronously, and guaranteeing the consistency of self-centering positioning.

[0014] Furthermore, a servo motor is fixedly mounted on the other side of the mounting plate, and the output end of the servo motor is connected to the drive gear.

[0015] The advantage of adopting the above-mentioned further solution is that the servo motor provides stable power for the rotation of the gear ring.

[0016] Furthermore, pneumatic grippers are fixedly installed on both sides of the interior of the mounting bracket, and clamping blocks are installed on both output ends of the pneumatic grippers by bolts.

[0017] The advantages of adopting the above-mentioned further solution are that the pneumatic gripper drives the clamping block to perform secondary clamping of the wire, which enhances the positioning stability and prevents the wire from loosening during the winding process at both ends; the bolt-mounted clamping block is easy to replace.

[0018] Furthermore, semi-circular placement slots are provided on both sides of the upper end of the limiting frame, and an operation slot is provided on one side of the mounting plate above the limiting frame.

[0019] The beneficial effects of adopting the above-mentioned further solution are that the semi-circular placement groove limits the wire, so that when the clamping claw gathers the wire, the two ends of the wire are exactly inside the semi-circular placement groove to complete the self-centering operation; the operating groove makes it convenient for the clamping claw of the winding equipment to pass through the mounting plate and clamp and wind the two ends of the wire.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: The self-centering positioning mechanism for wires, through the rotation of the main toothed ring, drives the moving frame to move radially along the slide rail synchronously via the connecting rod, enabling the clamping claws to achieve self-centering clamping, thus gathering loose round wires inward; it also brings the two ends of the wires closer to the limiting frame, so that they align with the semi-circular placement slots opened on both sides of the upper end of the limiting frame, thereby facilitating the subsequent winding equipment to clamp the two ends of the wires for winding, improving positioning accuracy, and meeting the precise positioning requirements of wire processing. The arc-shaped groove provides sliding guidance for the slider, restricting the rotation trajectory of the toothed ring, ensuring that the toothed ring rotates smoothly along the center of the mounting plate, avoiding deviation that would cause inaccurate positioning of the clamping claws. The semi-circular placement slots limit the wires, so that when the clamping claws gather the wires, the two ends of the wires are exactly inside the semi-circular placement slots, completing the self-centering operation; the operating slots facilitate the clamping claws of the winding equipment to pass through the mounting plate and clamp and wind the two ends of the wires. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the wire self-centering positioning mechanism disclosed in an embodiment of the present utility model. Figure 1 ;

[0022] Figure 2 This is a three-dimensional structural diagram of the wire self-centering positioning mechanism disclosed in an embodiment of the present utility model. Figure 2 ;

[0023] Figure 3 This is a three-dimensional structural diagram of the wire self-centering positioning mechanism disclosed in an embodiment of the present utility model. Figure 3 ;

[0024] Figure 4 This is a three-dimensional structural diagram of the wire self-centering positioning mechanism disclosed in an embodiment of the present utility model. Figure 4 ;

[0025] Figure 5 The wire self-centering positioning mechanism disclosed in this utility model embodiment Figure 3 An enlarged schematic diagram of the A structure.

[0026] In the diagram: 1. Main body; 101. Mounting plate; 102. Gear ring; 103. Transmission gear; 104. Drive gear; 105. First connecting shaft; 106. Connecting rod; 107. Operating slot; 108. Servo motor; 109. Arc-shaped slot; 110. Slider; 2. Clamping mechanism; 201. Mounting frame; 202. Limiting frame; 203. Pneumatic gripper; 204. Clamping block; 205. Semi-circular placement slot; 3. Auxiliary mechanism; 301. Slide rail; 302. Moving frame; 303. Clamping claw; 304. Second connecting shaft. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1 - Figure 5 This utility model provides a technical solution: a wire self-centering positioning mechanism, including a main body 1, a clamping mechanism 2, and an auxiliary mechanism 3. The main body 1 includes a mounting plate 101, a gear ring 102 rotatably connected to the center of the mounting plate 101, and a plurality of first connecting shafts 105 circumferentially mounted on the outer side of the gear ring 102 along its axis. Each of the first connecting shafts 105 is rotatably connected to a connecting rod 106. The auxiliary mechanism 3 includes a plurality of slide rails 301, which are disposed on one side of the mounting plate 101. Along the axis of the mounting plate 101, a movable frame 302 is slidably mounted on the slide rail 301. A latch 303 is fixedly mounted on one side of the movable frame 302. A second connecting shaft 304 is fixedly mounted on the side of the movable frame 302 near the latch 303. The other end of the connecting rod 106 is rotatably connected to the second connecting shaft 304. The clamping mechanism 2 includes a mounting frame 201. One side of the mounting frame 201 is connected to the upper end of one side of the mounting plate 101. A limit frame 202 is fixedly mounted at the center of the interior of the mounting frame 201.

[0029] As an embodiment of this utility model, the mounting plate 101 further provides an arc-shaped groove 109 on the side near the gear ring 102. A slider 110 is slidably installed inside the arc-shaped groove 109. One end of the slider 110 is fixedly connected to one side of the gear ring 102. The arc-shaped groove 109 provides sliding guidance for the slider 110, restricts the rotation trajectory of the gear ring 102, and ensures that the gear ring 102 rotates smoothly along the center of the mounting plate 101, avoiding deviation that would cause the latch 303 to be inaccurately positioned.

[0030] As an embodiment of this utility model, a transmission gear 103 is rotatably connected to one side of the mounting plate 101 below the gear ring 102, and a drive gear 104 is rotatably connected to one side of the mounting plate 101 below the transmission gear 103. The transmission gear 103 and the drive gear 104 form a speed reduction transmission structure, which reduces the output speed of the servo motor 108 and increases the torque, making the gear ring 102 rotate more smoothly and improving the controllability of the clamping and releasing of the pawl 303.

[0031] As an embodiment of this utility model, the drive gear 104 meshes with the transmission gear 103, and the transmission gear 103 meshes with the gear ring 102. The drive gear 104 drives the gear ring 102 to rotate through the transmission gear 103, thereby achieving smooth power transmission and ensuring that the gear ring 102 drives all the latches 303 to move synchronously, thus ensuring the consistency of self-centering positioning.

[0032] As an embodiment of this utility model, a servo motor 108 is further fixedly installed on the other side of the mounting plate 101. The output end of the servo motor 108 is connected to the drive gear 104 for transmission, and the servo motor 108 provides stable power for the rotation of the gear ring 102.

[0033] As an embodiment of this utility model, further, pneumatic grippers 203 are fixedly installed on both sides of the interior of the mounting bracket 201. The two output ends of the pneumatic grippers 203 are each bolted with clamping blocks 204. The pneumatic grippers 203 drive the clamping blocks 204 to perform secondary clamping on the wire, thereby enhancing positioning stability and preventing the wire from loosening during the winding process at both ends. The bolted clamping blocks 204 are easy to replace.

[0034] As an embodiment of this utility model, the upper end of the limiting frame 202 is provided with semi-circular placement grooves 205 on both sides, and the mounting plate 101 is provided with an operation groove 107 on one side above the limiting frame 202. The semi-circular placement grooves 205 limit the wire, so that when the clamping claws 303 gather the wire, the two ends of the wire are exactly inside the semi-circular placement grooves 205 to complete the self-centering operation. The operation groove 107 facilitates the clamping claws of the winding equipment to pass through the mounting plate 101 and clamp and wind the two ends of the wire.

[0035] Specifically, the working principle of this wire self-centering positioning mechanism is as follows: During use, the operator places the coiled wire between several locking claws 303. The servo motor 108 starts the drive gear 104 to rotate, which, through meshing with the transmission gear 103, drives the gear ring 102 to rotate smoothly along the arc-shaped groove 109 and the slider 110. The gear ring 102 pulls the connecting rod 106 via the first connecting shaft 105, thereby driving the moving frame 302 to move synchronously radially along the slide rail 301, causing the locking claws 303 to converge towards the center. The loose wire is tightened inward and its two ends are pushed to align with the semi-circular placement slot 205 of the limiting frame 202 to complete self-centering positioning. Then, the pneumatic gripper 203 in the mounting frame 201 drives the clamping block 204 to close, clamping the wire a second time to prevent loosening during winding. At this time, the gripper of the winding equipment can pass through the operating slot 107 to clamp the two ends of the wire for winding processing. After processing, the servo motor 108 rotates in the opposite direction to drive the latch 303 to release, and the pneumatic gripper 203 resets, realizing accurate positioning and convenient processing of the wire.

[0036] It should be noted that all standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Furthermore, since this application is mainly used to protect mechanical devices, this application will not explain the control method and circuit connection in detail.

Claims

1. A wire self-centering positioning mechanism, characterized in that, The device includes a main body (1), a clamping mechanism (2), and an auxiliary mechanism (3). The main body (1) includes a mounting plate (101), a gear ring (102) is rotatably connected to the center of the mounting plate (101), and a plurality of first connecting shafts (105) are circumferentially mounted on the outer side of the gear ring (102) along its axis. Each of the first connecting shafts (105) is rotatably connected to a connecting rod (106). The auxiliary mechanism (3) includes a plurality of slide rails (301), which are disposed on one side of the mounting plate (101) and are circumferentially mounted along the axis of the mounting plate (101). The slide rail (301) is slidably mounted with a movable frame (302). A latch (303) is fixedly mounted on one side of the movable frame (302). A second connecting shaft (304) is fixedly mounted on the side of the movable frame (302) near the latch (303). The other end of the connecting rod (106) is rotatably connected to the second connecting shaft (304). The clamping mechanism (2) includes a mounting frame (201). One side of the mounting frame (201) is connected to the upper end of one side of the mounting plate (101). A limit frame (202) is fixedly mounted at the center of the interior of the mounting frame (201).

2. The wire self-centering positioning mechanism according to claim 1, characterized in that, The mounting plate (101) has an arc-shaped groove (109) on one side near the gear ring (102). A slider (110) is slidably installed inside the arc-shaped groove (109), and one end of the slider (110) is fixedly connected to one side of the gear ring (102).

3. The wire self-centering positioning mechanism according to claim 1, characterized in that, The mounting plate (101) is rotatably connected to a transmission gear (103) on one side below the gear ring (102), and a drive gear (104) is rotatably connected to the other side of the mounting plate (101) below the transmission gear (103).

4. The wire self-centering positioning mechanism according to claim 3, characterized in that, The drive gear (104) meshes with the transmission gear (103), and the transmission gear (103) meshes with the gear ring (102).

5. A wire self-centering positioning mechanism according to claim 4, characterized in that, A servo motor (108) is fixedly installed on the other side of the mounting plate (101), and the output end of the servo motor (108) is connected to the drive gear (104) for transmission.

6. The wire self-centering positioning mechanism according to claim 1, characterized in that, Pneumatic grippers (203) are fixedly installed on both sides of the interior of the mounting bracket (201), and clamping blocks (204) are installed on both output ends of the pneumatic grippers (203) by bolts.

7. The wire self-centering positioning mechanism according to claim 1, characterized in that, The upper end of the limiting frame (202) is provided with semi-circular placement slots (205) on both sides, and the mounting plate (101) is provided with an operation slot (107) on one side above the limiting frame (202).

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