Automatic feeding device for oil seal springs

Abstract

This utility model discloses an automatic feeding device for oil seal springs, including a drive assembly, a rotary feeding assembly, and a support assembly. The support assembly includes a fixed plate, and both the drive assembly and the rotary feeding assembly are mounted on the fixed plate. The drive assembly includes a motor mounting base and a stepper motor mounted on the motor mounting base. The rotary feeding assembly includes a rotating shaft, a lead screw, and a clamping unit. One end of the lead screw is connected to the rotating shaft, and the clamping unit elastically clamps the other end of the lead screw to its circumferential surface. The output shaft of the stepper motor is driven by the rotating shaft to drive the rotating shaft and the lead screw to rotate, thereby rotating the spring sleeved on the lead screw and axially advancing it to complete the feeding. Through the above method, this utility model can achieve automated feeding of oil seal springs. It adapts to multiple product specifications using a single lead screw, enabling rapid changeover adjustments, convenient operation, reduced labor intensity, and reduced manpower, tooling change, and time costs.

Description

Technical Field

[0001] This utility model relates to the field of oil seal production technology, and in particular to an automatic feeding device for oil seal springs. Background Technology

[0002] In the existing oil seal manufacturing industry, springs are commonly used to reinforce the lip of the oil seal to enhance its sealing performance. By continuously applying radial force to the lip, the spring effectively compensates for sealing gaps caused by material wear or fluctuations in operating conditions, thereby significantly enhancing the reliability and service life of the seal.

[0003] However, for springs with larger diameters, installation currently relies mainly on manual methods. This traditional method is not only inefficient and difficult to adapt to the fast pace of modern production lines, but also prone to quality problems such as incorrect installation, omissions, excessive stretching and deformation of springs, and localized damage due to poor operational consistency. These issues affect the sealing performance of the oil seals and consequently the stability of the entire equipment operation. Utility Model Content

[0004] The main technical problem solved by this utility model is to provide an automatic feeding device for oil seal springs, which can realize the automatic feeding of oil seal springs, avoid mis-installation and omission, adapt to multiple specifications of products through a single lead screw, realize quick change-of-type adjustment, facilitate operation, reduce labor intensity, and reduce manpower, tooling change and time costs.

[0005] To solve the above-mentioned technical problems, the present invention provides an automatic feeding device for oil seal springs, comprising: a drive assembly, a rotary feeding assembly, and a support assembly. The support assembly includes a fixed plate, and both the drive assembly and the rotary feeding assembly are mounted on the fixed plate. The drive assembly includes a motor mounting base and a stepper motor mounted on the motor mounting base. The rotary feeding assembly includes a rotating shaft, a lead screw, and a clamping unit. One end of the lead screw is connected to the rotating shaft, and the clamping unit elastically clamps the other end of the lead screw to its circumferential surface. The output shaft of the stepper motor is drivenly connected to the rotating shaft to drive the rotating shaft and the lead screw to rotate, thereby rotating the spring sleeved on the lead screw and axially advancing it to complete the feeding.

[0006] In a preferred embodiment of the present invention, the support assembly further includes a fixed base, a support plate, and a vertical plate. The fixed base is connected to both sides of the bottom of the support plate, the vertical plate is connected to the upper end of the support plate, and the fixed plate is connected to the vertical plate, with its surface parallel to the axis of the lead screw.

[0007] In a preferred embodiment of the present invention, the rotary feeding assembly further includes a rotary bearing seat and a rotating shaft fixing plate. The rotating shaft is supported in the rotary bearing seat by a bearing, the rotary bearing seat is mounted on the rotating shaft fixing plate, and the rotating shaft fixing plate and the motor fixing seat are connected adjacent to each other at the front end of the fixing plate.

[0008] In a preferred embodiment of the present invention, a locking nut is further included, which is screwed onto the end of the rotating shaft to axially lock the bearing.

[0009] In a preferred embodiment of the present invention, a retaining ring is sleeved on the lead screw, which is an elastic retaining ring or a retaining ring for holes.

[0010] In a preferred embodiment of the present invention, the pressing unit includes a pressing plate fixing plate, a sheet metal pressing plate and a tension spring. The sheet metal pressing plate is connected to the pressing plate fixing plate, and one end of the tension spring is connected to the pressing plate fixing plate, and the other end is connected to the rear end of the fixing plate so that the sheet metal pressing plate is pressed against the circumferential surface of the lead screw.

[0011] In a preferred embodiment of the present invention, a manual operation component is further included. The manual operation component includes a pin fixing seat, a fixing pin, and a handle. The pin fixing seat is fastened to a fixing plate, the fixing pin is fastened to the pin fixing seat, and the handle is fastened to the fixing pin.

[0012] In a preferred embodiment of this utility model, the output shaft of the stepper motor is coaxially connected to the rotating shaft via a coupling.

[0013] The beneficial effects of this utility model are: it can reliably and automatically feed springs with an outer diameter of φ60mm and above, avoiding mis-installation and omission, and is not affected by factors such as spring material and wire diameter, thus having wide applicability; it ensures accurate and controllable feeding, improves feeding accuracy, and has a compact overall structure, making installation and maintenance convenient. Combined with manual operation, it further enhances practicality; it can also be used in conjunction with an automatic spring feeding mechanism to complete the automated spring feeding of oil seal products. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 This is a three-dimensional structural schematic diagram of a preferred embodiment of the automatic feeding device for oil seal springs of this utility model; Figure 2This is a three-dimensional structural schematic diagram of another preferred embodiment of the automatic feeding device for oil seal springs of this utility model; Figure 3 This is a side view of a preferred embodiment of the automatic feeding device for oil seal springs of this utility model; The components in the attached diagram are labeled as follows: 1. Motor mounting bracket, 2. Mounting base, 3. Tension spring, 4. Vertical plate, 5. Rotary shaft mounting plate, 6. Lead screw, 7. Mounting plate, 8. Handle, 9. Sheet metal pressure plate, 10. Pressure plate mounting plate, 11. Mounting pin, 12. Pin mounting bracket, 13. Rotary bearing housing, 14. Rotary shaft, 15. Retaining ring, 16. Support plate, 17. Bearing, 18. Locking nut, 19. Stepper motor, 20. Coupling. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0016] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0017] This utility model provides a preferred embodiment of an automatic feeding device for oil seal springs, wherein the outer diameter of the corresponding oil seal spring is greater than or equal to φ60mm. It can realize a fully automated feeding process for the oil seal spring process, which is easy to operate, requires low personnel skills, and effectively improves assembly efficiency and quality stability.

[0018] Please see Figures 1 to 3 The automatic oil seal spring feeding device includes a drive assembly, a rotary feeding assembly, a support assembly, and a manual operation assembly.

[0019] In detail, the first component is the support assembly, which serves as the installation base for the entire device. It includes a fixed base 2, a support plate 16, a vertical plate 4, and a fixing plate 7. The fixed base 2 is connected to both sides of the bottom of the support plate 16 and is fastened to the workbench surface to ensure overall stability. The vertical plate 4 is connected to the upper end of the support plate 16, and the fixing plate 7 is positioned and installed on the vertical plate 4. The fixing plate 7 is parallel to the axis of the subsequent lead screw 6, providing an installation reference for the corresponding components and ensuring accurate and stable transmission.

[0020] Secondly, there is the drive assembly, which includes a motor mounting base 1 and a stepper motor 19. The motor mounting base 1 is positioned and fastened to the front end of the mounting plate 7. The stepper motor 19 is mounted on the motor mounting base 1, and its output shaft is coaxially rigidly connected to the rotating shaft 14 of the rotating feeding assembly through a coupling 20, ensuring stable and reliable power transmission and meeting the requirements for accurate control of speed and torque.

[0021] Furthermore, the rotary feeding assembly, the core component for realizing spring conveying, includes a rotary shaft 14, a lead screw 6, a clamping unit, a rotary bearing seat 13, and a rotating shaft fixing plate 5.

[0022] The rotating shaft 14 is supported in the rotating bearing seat 13 by the bearing 17. The rotating bearing seat 13 is installed on the rotating shaft fixing plate 5. The rotating shaft fixing plate 5 and the motor fixing seat 1 are connected adjacent to the front end of the fixing plate 7 to form a front end support. A locking nut 18 is screwed onto the end of the rotating shaft 14 to lock the bearing 17 axially and prevent axial movement during rotation.

[0023] Furthermore, one end of the lead screw 6 is connected to the rotating shaft, and the other end of the lead screw 6 extends to the rear end of the fixed plate 7. The surface of the lead screw 6 is provided with a helical groove that matches the inner diameter of the spring. The pitch and depth of the helical groove are optimized to ensure that the spring is continuously and stably conveyed, and to prevent the spring from getting stuck or falling off during the conveying process.

[0024] Furthermore, a retaining ring 15 is fitted on the lead screw 6. The retaining ring 15 can be an elastic retaining ring or a hole retaining ring, which is used to axially limit the initially fitted spring and prevent it from shifting.

[0025] Furthermore, the clamping unit is installed at the rear end of the fixed plate 7 and adopts an elastic clamping method. It includes a pressure plate fixing plate 10, a sheet metal pressure plate 9, and a tension spring 3. The sheet metal pressure plate 9 is connected to the pressure plate fixing plate 10, and its working surface is in contact with the circumferential surface of the lead screw 6. One end of the tension spring 3 is connected to the pressure plate fixing plate 10, and the other end is connected to the rear end of the fixed plate 7. The tension of the tension spring 3 keeps the sheet metal pressure plate pressed against the surface of the lead screw.

[0026] This clamping unit ensures that the spring is axially advanced along the helical groove as the lead screw rotates, and it can also adapt to the surface fit requirements of springs with different wire diameters, avoiding spring deformation or lead screw wear caused by hard contact.

[0027] This utility model also includes a manual operation component, including a pin fixing seat 12, a fixed pin 11, and a handle 8. The pin fixing seat 12 is fastened to the fixing plate 7, the fixed pin 11 is fastened to the pin fixing seat 12, and the handle 8 is fastened to the fixed pin 11. The operator can rotate the handle 8 to drive the fixed pin 11 to rotate, thereby manually adjusting the operation and improving the flexibility of operation.

[0028] The working process of this utility model automatic oil seal spring feeding device is as follows: The springs to be fed are sequentially mounted on the lead screw 6, and the springs in their initial positions are limited by the retaining ring 15. Start the stepper motor 19, and the power is transmitted to the rotating shaft 14 through the coupling 20, driving the rotating shaft 14 and the lead screw 6 to rotate synchronously. The spring falls into the spiral groove on the surface of the lead screw 6. During the rotation, it spirals forward along the groove with the rotation of the lead screw 6, achieving axial propulsion. When the spring is delivered to the end of the lead screw 6, it falls precisely into the designated material trough, completing one feeding cycle.

[0029] The beneficial effects of this utility model automatic feeding device for oil seal springs are: Automated production of oil seal springs can be achieved, avoiding misassembly and omissions. It is especially suitable for oil seal springs with an outer diameter of φ60mm and above, which greatly improves the production efficiency of oil seals and reduces labor costs. A single lead screw can be adapted to the production of various products of different specifications, and can also achieve rapid changeover and adjustment while meeting the needs of various products; The operation is quick and convenient, which greatly reduces labor intensity, directly reduces manpower, tooling replacement and time costs, and enhances competitiveness.

[0030] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An oil seal spring automatic feeding device, characterized in that, include: The assembly comprises a drive component, a rotary feeding component, and a support component, wherein the support component includes a fixed plate, and both the drive component and the rotary feeding component are mounted on the fixed plate. The drive assembly includes a motor mount and a stepper motor mounted on the motor mount; The rotary feeding assembly includes a rotary shaft, a lead screw, and a clamping unit. One end of the lead screw is connected to the rotary shaft, and the clamping unit is elastically clamped to the circumferential surface of the other end of the lead screw. The output shaft of the stepper motor is connected to the rotating shaft for driving the rotating shaft and the lead screw to rotate, thereby driving the spring sleeved on the lead screw to rotate and propel it axially to complete the feeding.

2. The oil seal spring automatic feeding device according to claim 1, characterized in that, The support assembly further includes a fixed base, a support plate, and a vertical plate. The fixed base is connected to both sides of the bottom of the support plate, the vertical plate is connected to the upper part of the support plate, and the fixed plate is connected to the vertical plate, with its surface parallel to the axis of the lead screw.

3. The automatic feeding device for oil seal springs according to claim 1, characterized in that, The rotary feeding assembly also includes a rotary bearing housing and a rotating shaft fixing plate. The rotating shaft is supported in the rotary bearing housing by a bearing. The rotary bearing housing is mounted on the rotating shaft fixing plate. The rotating shaft fixing plate and the motor fixing seat are connected adjacent to each other at the front end of the fixing plate.

4. The oil seal spring automatic feeding device according to claim 3, characterized in that, It also includes a lock nut, which is screwed onto the end of the rotating shaft to axially lock the bearing.

5. The oil seal spring automatic feeding device according to claim 1, wherein A retaining ring is fitted on the lead screw, which is an elastic retaining ring or a hole retaining ring.

6. The oil seal spring automatic feeding device according to claim 1, wherein The pressing unit includes a pressing plate fixing plate, a sheet metal pressing plate, and a tension spring. The sheet metal pressing plate is connected to the pressing plate fixing plate, and one end of the tension spring is connected to the pressing plate fixing plate, and the other end is connected to the rear end of the fixing plate so that the sheet metal pressing plate is pressed against the circumferential surface of the lead screw.

7. The oil seal spring automatic feeding device according to claim 1, wherein It also includes a manual operation component, which includes a pin fixing seat, a fixed pin, and a handle. The pin fixing seat is fastened to a fixing plate, the fixed pin is fastened to the pin fixing seat, and the handle is fastened to the fixed pin.

8. The oil seal spring automatic feeding device according to claim 1, wherein The output shaft of the stepper motor is coaxially connected to the rotating shaft via a coupling.

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