Bearing wire pressing device

Abstract

The application discloses a bearing tight-wire extrusion device, and relates to the technical field of bearing element machining. The bearing tight-wire extrusion device comprises a support, two compression rollers, a driving source for controlling rotation of the compression rollers, a roller body and a rotating shaft located at two ends of the roller body, and the roller body and the rotating shaft are in an integrated structure, the support comprises a base and two parallel side plates fixed on the base, and the two compression rollers are installed between the two side plates. By adopting the structure of "roller body and rotating shaft integrated" combined with "double-side plate support", the problem of insufficient rigidity and easy shaking of the single-side support structure in the background art is fundamentally solved.

Description

Technical Field

[0001] This application relates to the field of bearing component processing technology, and in particular to a bearing wire tightening extrusion device. Background Technology

[0002] In the later stages of bearing manufacturing, retaining rings (circlips) need to be installed to prevent unevenness in the bearing cap caused by the rolling of internal balls, thereby avoiding friction and imbalance during bearing rotation. In existing technologies, such as the retaining ring production device disclosed in CN220258838U, retaining rings are produced on-site by extruding wire with two pressure rollers.

[0003] However, the pressure roller of this device is fixed by the roller and the shaft bolts, and only adopts a single-sided support structure, which has poor stability. Due to insufficient support, the uniformity of the pressed tight ring is not good, which affects the assembly quality and performance of the bearing. Utility Model Content

[0004] To improve the pressing and forming effect of the bearing tensioning wire, this application provides a bearing tensioning wire extrusion device.

[0005] This application provides a bearing tensioning wire extrusion device, which adopts the following technical solution: A bearing tensioning extrusion device includes a bracket, two pressure rollers, and a drive source for controlling the rotation of the pressure rollers. Each pressure roller includes a roller body and rotating shafts located at both ends of the roller body. The roller body and rotating shafts are integrally formed. The bracket includes a base and two parallel side plates fixed on the base. The two pressure rollers are installed between the two side plates.

[0006] By adopting the above technical solution, the loosening and gaps that may occur with split connection are avoided; at the same time, the use of two parallel side plates to support both ends of the pressure roller greatly improves the stability of the pressure roller when rotating at high speed and bearing extrusion load, fundamentally solving the problem of instability of single-sided support structure in the background technology, thereby ensuring that the pressed tight ring has excellent uniformity.

[0007] Optionally, the bracket is also fixed with a wire assembly, which includes two guide blocks spliced ​​in half. The guide blocks extend toward the position between the two pressure rollers. A wire groove is opened on the side of the two guide blocks that are close to each other to allow the wire harness to pass through. The two wire grooves are used to guide the wire harness between the two pressure rollers.

[0008] By adopting the above technical solution, the wire assembly can accurately guide and position the wire before it enters the pressure roller, ensuring that the wire always enters the extrusion area in the correct position and posture. This effectively prevents the wire from shifting, jumping or twisting during the feeding process, thereby ensuring the consistency of the tight coil forming size and the regularity of the shape, and reducing the defect rate.

[0009] Optionally, the drive source includes a servo motor, the output shaft of which is coaxially and fixedly connected to the rotating shaft of at least one of the pressure rollers.

[0010] By adopting the above technical solutions, the servo motor can provide precise speed and position control, making the rotation process of the pressure roller more stable and controllable; the coaxial direct-drive transmission method has a compact structure, eliminating the transmission errors, backlash or slippage that may exist in traditional transmission mechanisms (such as belts and gears), further ensuring the synchronization and stability of the extrusion process, which is conducive to improving the pressing accuracy and surface quality of the tight ring.

[0011] Optionally, the support is also provided with an adjustment component for adjusting the distance between the two pressure rollers.

[0012] By adopting the above technical solution, the adjustment component allows operators to flexibly and conveniently adjust the gap between the two pressure rollers according to different wire diameters and finished coil specifications, greatly enhancing the versatility and adaptability of the device, enabling one piece of equipment to meet the needs of multiple production processes and improving equipment utilization.

[0013] Optionally, the adjustment assembly includes a slider rotatably connected to the rotating shaft. The side plate has an installation port for mounting the slider. A sliding groove is provided on the side wall of the installation port. Limiting blocks for sliding connection with the sliding groove are fixed on opposite sides of the slider. The slider slides up and down along the sliding groove through the limiting blocks. A limiting bolt is also threaded to the top of the side plate. One end of the limiting bolt extends into the installation port and contacts the slider in a perpendicular direction.

[0014] By adopting the above technical solution, the cooperation between the slider and the groove enables the smooth and linear movement of the pressure roller. The limiting block effectively prevents the slider from rotating or disengaging during movement. The limiting bolt provides a simple and reliable locking function, which can firmly press and fix the slider after adjustment, ensuring that the gap between the pressure rollers remains constant during the extrusion process, thereby ensuring the consistency of mass-produced products.

[0015] Optionally, a pair of bolts and nuts are provided between the two side plates, and multiple sets of bolts and nuts are provided and distributed at the four corners of the side plates.

[0016] By adopting the above technical solution, the two side plates are connected by multiple sets of evenly distributed bolts and nuts, which greatly enhances the overall rigidity and structural stability of the support. It can effectively resist the huge radial force generated during the extrusion process, prevent the side plates from deforming or expanding outward, and provide a stable support foundation for the pressure roller. This is the core structural guarantee for ensuring extrusion accuracy.

[0017] Optionally, a limiting sleeve is installed between the two side plates, and the bolt passes through the limiting sleeve.

[0018] By adopting the above technical solution, the limiting sleeve plays a role in accurately maintaining the parallel distance between the two side plates. On the one hand, it can prevent the side plates from deforming due to excessive force when tightening the nuts. On the other hand, it ensures that the two side plates can still maintain a precise parallel relationship even after long-term use, thereby indirectly ensuring the parallelism of the axis of the pressure roller installed between them, and further improving the extrusion quality.

[0019] Optionally, the adjustment assembly further includes an adjustment bolt and an adjustment nut. The adjustment bolt is fixedly connected to one of the sliders and passes through the side plate. The adjustment nut is threaded to the end of the adjustment bolt that passes through the side plate and is supported on the upper end of the side plate.

[0020] By adopting the above technical solution, the adjusting bolt and adjusting nut constitute a precise fine-tuning mechanism. By rotating the adjusting nut, the up and down position of the slider can be precisely controlled, thereby achieving fine adjustment of the pressure roller gap.

[0021] In summary, this application includes at least one of the following beneficial effects: 1. By adopting a structure that combines "integrated molding of the roller body and shaft" with "double-side plate support," the problem of insufficient rigidity and easy swaying in the single-sided support structure in the background technology is fundamentally solved. The addition of "multiple sets of bolts and nuts" and "limiting sleeves" further strengthens the overall integrity of the support, making the pressure roller run extremely smoothly during the extrusion process. This effectively avoids problems such as uneven tight ring shape and dimensional deviations caused by unstable support, directly improving the assembly quality and performance of the bearing. 2. By setting up an adjustment assembly that includes a slider, a groove, a limit bolt, and an adjusting bolt / nut, the operator can make precise, smooth adjustment and reliably lock the gap between the two pressure rollers. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a schematic diagram illustrating the structure of the driving source in the embodiments of this application; Figure 3 This is an exploded view of the guide block structure in the embodiments of this application; Figure 4 This is an exploded view of the slider in an embodiment of this application.

[0023] Explanation of reference numerals in the attached drawings: 1. Bracket; 2. Base; 3. Side plate; 4. Pressure roller; 5. Roller body; 6. Rotating shaft; 7. Drive source; 8. Mounting port; 10. Limiting sleeve; 11. Guide block; 12. Wire groove; 13. Slider; 14. Slide groove; 15. Limiting block; 16. Limiting bolt; 17. Adjusting bolt; 18. Adjusting nut. Detailed Implementation

[0024] The present application will be further described in detail below with reference to the accompanying drawings.

[0025] This application discloses a bearing tensioning wire extrusion device, which aims to improve the stability and precision of tensioning ring pressing and forming by optimizing the structural design, and is suitable for on-site processing of tensioning rings in the bearing manufacturing process.

[0026] Reference Figure 1 The extrusion device includes a support frame 1, two pressure rollers 4, and a drive source 7. The support frame 1 serves as the load-bearing foundation for the entire device and includes a base 2 and two side plates 3. The base 2 is made of high-strength steel and has sufficient weight and rigidity to ensure the overall stability of the device during operation.

[0027] Reference Figure 2 , 3 Two side plates 3 are arranged in parallel and fixed vertically to the base 2, forming a symmetrical support structure. To enhance the overall rigidity of the bracket 1, the two side plates 3 are fastened together by multiple sets of bolts and nuts. Specifically, the bolts are distributed along the four corners of the side plates 3, and each set of bolts passes through both side plates 3 and is tightened with nuts, so that the side plates 3 form a stable frame structure.

[0028] Reference Figure 2 , 3 Furthermore, a limiting sleeve 10 is installed between the two side plates 3 at the position where the bolt passes through. The limiting sleeve 10 is sleeved outside the bolt, and its length matches the preset distance between the two side plates 3. This can prevent the side plates 3 from deforming due to excessive force when tightening the nuts, and can also maintain the parallelism of the two side plates 3 for a long time, providing a basis for the stable installation of the pressure roller 4.

[0029] Reference Figure 3 , 4 Two pressure rollers 4 are installed in parallel between the two side plates 3 and are the core components for achieving tight wire extrusion. Each pressure roller 4 adopts a structure in which the roller body 5 and the rotating shaft 6 are integrally formed. Specifically, it can be manufactured by forging, precision casting or turning processes, avoiding assembly gaps and loosening problems that may occur with split structures such as bolted connections, and significantly improving the overall rigidity of the pressure roller 4.

[0030] The two ends of the rotating shaft 6 are respectively engaged with the two side plates 3, so that the roller body 5 is located in the working area between the two side plates 3. Compared with the single-side support, this double-sided support method can effectively distribute the load during the extrusion process, reduce the radial runout of the pressure roller 4, and ensure the stability of the extrusion process.

[0031] Reference Figure 2 The drive source 7 uses a servo motor, whose output shaft is coaxially and fixedly connected to the rotating shaft 6 of at least one pressure roller 4 via a coupling. When only one pressure roller 4 is driven, the other pressure roller 4 can rotate driven by friction with the driven pressure roller 4; alternatively, two servo motors can be set as needed to drive the two pressure rollers 4 to rotate in opposite directions. The servo motor has a precise speed adjustment function, and the appropriate rotation speed can be set through the control system. The coaxial direct connection transmission method eliminates the transmission errors that may exist in traditional belt or gear transmissions, ensuring the smooth rotation of the pressure roller 4 and improving the forming accuracy of the tightening ring.

[0032] Reference Figure 3 To ensure the wire accurately enters the extrusion area between the two pressure rollers 4, a wire assembly is fixed on the bracket 1. The wire assembly consists of two guide blocks 11, which are installed in a 50 / 50 splicing manner, such as by bolts to the side plate 3 near the feed end. The splicing surface of the guide blocks 11 extends towards the area between the two pressure rollers 4.

[0033] Each guide block 11 has a wire guide groove 12 on the side near the splicing surface. Two wire guide grooves 12, when spliced ​​together, form a complete guide channel, such as a circular channel, with a diameter slightly larger than the diameter of the wire to be processed. Before entering the pressure roller 4, the wire passes through this guide channel and is precisely positioned by the constraint of the wire guide groove 12, effectively preventing the wire from shifting or jumping during feeding and ensuring the consistency of the extrusion position.

[0034] Reference Figure 3 , 4 To accommodate the processing needs of wires with different diameters and coils of different specifications, the bracket 1 is equipped with an adjustment component to adjust the distance between the two pressure rollers 4.

[0035] Specifically, the adjustment assembly includes a slider 13. An installation port 8 is provided on the side plate 3 at a position corresponding to the rotating shaft 6 of the pressure roller 4. The slider 13 is installed in the installation port 8 and rotatably connected to the rotating shaft 6 of the pressure roller 4 via a bearing. Vertically extending grooves 14 are provided on both sides of the installation port 8. Limiting blocks 15 are fixed on opposite sides of the slider 13, forming a sliding fit with the grooves 14, allowing the slider 13 to slide stably upwards and downwards along the grooves 14, thereby adjusting the position of the pressure roller 4.

[0036] Reference Figure 4The top of the side plate 3 is threaded with a limit bolt 16 corresponding to the position of the slider 13. The lower end of the limit bolt 16 extends into the mounting port 8 and contacts the upper surface of the slider 13. After the slider 13 is adjusted to the correct position, tightening the limit bolt 16 can press and fix the slider 13 to prevent it from shifting during the compression process.

[0037] Reference Figure 4 To achieve finer position adjustment, the adjustment assembly also includes an adjusting bolt 17 and an adjusting nut 18. The lower end of the adjusting bolt 17 is fixedly connected to the top of the slider 13, while the upper end passes through a through hole in the side plate 3 and extends to the outside of the side plate 3. The adjusting nut 18 is threadedly connected to the portion of the adjusting bolt 17 located outside the side plate 3, and the lower surface of the adjusting nut 18 contacts the upper surface of the side plate 3. By rotating the adjusting nut 18, the adjusting bolt 17 can be moved up and down, thereby precisely controlling the position of the slider 13 and achieving fine adjustment of the gap between the two pressure rollers 4.

[0038] The implementation principle of a bearing tensioning wire extrusion device according to an embodiment of this application is as follows: In use, the gap between the two pressure rollers 4 is adjusted according to the diameter of the wire to be processed and the specifications of the coil, using the adjusting assembly: rotating the adjusting nut 18 moves the slider 13 up and down. After the gap is adjusted to the correct position, the limit bolt 16 is tightened to fix the slider 13. Then, one end of the wire is passed through the guide channel of the wire assembly, aligning it with the extrusion area between the two pressure rollers 4. The servo motor is started, driving the pressure rollers 4 to rotate. The wire is continuously fed into the extrusion area under the friction of the pressure rollers 4, forming the desired coil shape through the extrusion action of the two pressure rollers 4.

[0039] 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 bearing tensioning wire extrusion device, characterized in that: The device includes a support (1), two pressure rollers (4), and a drive source (7) for controlling the rotation of the pressure rollers (4). The pressure rollers (4) include a roller body (5) and a rotating shaft (6) located at both ends of the roller body (5). The roller body (5) and the rotating shaft (6) are integrally formed. The support (1) includes a base (2) and two parallel side plates (3) fixed on the base (2). The two pressure rollers (4) are installed between the two side plates (3).

2. The bearing tensioning wire extrusion device according to claim 1, characterized in that: The bracket (1) is also fixed with a wire assembly, which includes two guide blocks (11) spliced ​​in half. The guide blocks (11) extend toward the position between the two pressure rollers (4). The two guide blocks (11) are provided with wire grooves (12) for wire harness to pass through on the side that is close to each other. The two wire grooves (12) are used to guide the wire harness between the two pressure rollers (4).

3. The bearing tensioning wire extrusion device according to claim 1, characterized in that: The drive source (7) includes a servo motor, the output shaft of which is coaxially and fixedly connected to the rotating shaft (6) of at least one of the pressure rollers (4).

4. The bearing tensioning wire extrusion device according to claim 1, characterized in that: The bracket (1) is also provided with an adjustment component for adjusting the distance between the two pressure rollers (4).

5. The bearing tensioning wire extrusion device according to claim 4, characterized in that: The adjustment assembly includes a slider (13) rotatably connected to the rotating shaft (6). The side plate (3) has an installation port (8) for mounting the slider (13). The side wall of the installation port (8) has a sliding groove (14). The slider (13) has a limiting block (15) fixed on opposite sides for sliding connection with the sliding groove (14). The slider (13) slides up and down along the sliding groove (14) through the limiting block (15). The top of the side plate (3) is also threaded with a limiting bolt (16). One end of the limiting bolt (16) extends into the installation port (8) and contacts the slider (13) in a vertical direction.

6. The bearing tensioning wire extrusion device according to claim 1, characterized in that: Bolts and nuts that cooperate with each other are provided between the two side plates (3), and multiple sets of bolts and nuts are provided and distributed at the four corners of the side plates (3).

7. A bearing tensioning wire extrusion device according to claim 6, characterized in that: A limiting sleeve (10) is installed between the two side plates (3), and the bolt passes through the limiting sleeve (10).

8. A bearing tensioning wire extrusion device according to claim 5, characterized in that: The adjustment assembly also includes an adjustment bolt (17) and an adjustment nut (18). The adjustment bolt (17) is fixedly connected to one of the sliders (13) and passes through the side plate (3). The adjustment nut (18) is threaded to the end of the adjustment bolt (17) that passes through the side plate (3) and is supported on the upper end of the side plate (3).

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