A nut automatic mounting device for CDC assembly

Abstract

The utility model discloses a nut automatic installation device for CDC assembly is provided with the side plate on the front and back both sides of base, and the left side of base is provided with motor seat, and the inboard of side plate is provided with slide rail, and the both sides of movable seat are provided with first sliding block and first sliding block and slide rail sliding connection, and the front and back both sides of machine seat are provided with second sliding block and second sliding block and slide rail sliding connection, and movable seat and machine seat are connected through spring assembly, and the utility model discloses the design of the realization stacking of being provided with spline can reduce the volume of device, can conveniently combine using with other devices, realizes the assembly of damping adjustable damper CDC component to be completed once, and the utility model discloses still be provided with spring assembly and torque sensor, can buffer and even perception torque to feeding component, avoid causing the destruction of o ring extrusion and the damage of thread, improve the quality of product.

Description

Technical Field

[0001] This utility model relates to the field of tightening machine technology, specifically to an automatic nut installation device for CDC assembly. Background Technology

[0002] The assembly technology for adjustable damper (CDC) components is complex and requires high precision. When assembling the valve core port nuts at both ends of the CDC component, a tightening machine is typically used. Existing tightening machines generally have a motor and reducer-driven tightening device on a slide, and a feed device drives the entire slide and tightening device to complete the workpiece feeding and tightening assembly. This device is relatively large and inconvenient to combine with other components to complete the assembly of the adjustable damper (CDC) component in one go. Furthermore, the feed device of traditional tightening machines is linear; it only stops feeding after the tightening action is stopped. During the valve core pressing process, O-rings are easily damaged by compression, and threads are easily damaged, leading to product scrap. This is difficult to detect manually, resulting in a decline in product quality. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an automatic nut installation device for CDC assembly, which addresses the shortcomings of the prior art and solves at least one of the above-mentioned technical problems.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: An automatic nut installation device for CDC assembly includes a base, a movable seat, and a machine base. Side plates are provided on both the front and rear sides of the base. A motor base is provided on the left side of the base. A slide rail is provided on the inner side of the side plates. First sliders are provided on both sides of the movable seat and are slidably connected to the slide rails. Second sliders are provided on both the front and rear sides of the machine base and are slidably connected to the slide rails. The movable seat and the machine base are connected by a spring assembly. A second motor is provided on the motor base and is driven by the movable seat through a ball screw assembly. A splined shaft is provided below the machine base via a bearing. A reducer is provided on the motor base and is driven by the splined shaft. The reducer is driven by the first motor. A quick-change chuck is provided on the upper part of the machine base via a bearing. A socket wrench is detachably connected to the quick-change chuck. A first gear is provided on the splined shaft via a spline engagement. A second gear is provided on the quick-change chuck, and the second gear is driven by the first gear.

[0005] Furthermore, the spring assembly includes a guide shaft, one end of which is fixedly connected to the movable seat. The base is provided with a bushing, and the guide shaft and bushing are correspondingly provided and slidably connected. A limit block is provided at the end of the guide shaft and is configured to cooperate with the base. A spring is fitted on the guide shaft and both ends of the spring are respectively configured to cooperate with the movable seat and the base.

[0006] Furthermore, the main shaft of the reducer is connected to a torque sensor, which is connected to a splined shaft.

[0007] Furthermore, both the first gear and the second gear are helical gears.

[0008] Furthermore, the base is provided with a limiting structure inside, and the limiting structure is configured to cooperate with both sides of the first gear.

[0009] The beneficial effects of this utility model are: This invention reduces the size of the device by using a stacked design with splines, and allows for easy combination with other devices to complete the assembly of the CDC damping adjustable shock absorber components in one go. The device also includes a spring assembly and a torque sensor to buffer the feed assembly and detect torque in a timely manner, avoiding damage to the O-ring and threads, thus improving product quality. Attached Figure Description

[0010] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] The attached diagram lists the components represented by each number as follows: 1. Base; 2. Side plate; 3. Motor base; 4. Movable base; 5. First slider; 6. Machine base; 7. Second slider; 8. Spring assembly; 9. Splined shaft; 10. First motor; 11. Reducer; 12. Second motor; 13. Quick-change chuck; 14. Socket wrench; 15. Valve core port nut; 16. First gear; 17. Second gear; 18. Slide rail. Detailed Implementation

[0013] 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 some embodiments of this utility model, but not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations.

[0014] 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.

[0015] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0016] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0017] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0018] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] Example 1: See Figure 1 This is a schematic diagram of the various structures of this utility model, including a base 1, a movable seat 4, and a machine base 6. Side plates 2 are provided on both the front and rear sides of the base 1. A motor base 63 is provided on the left side of the base 1. A slide rail 18 is provided on the inner side of the side plate 2. First sliders 5 are provided on both sides of the movable seat 4, and the first sliders 5 are slidably connected to the slide rail 18, allowing the movable seat 4 to slide left and right. Second sliders 7 are provided on both the front and rear sides of the machine base 6, and the second sliders 7 are slidably connected to the slide rail 18, allowing the machine base 6 to slide left and right. The movable seat 4 and the machine base 6 are connected by a spring assembly 8. The distance between the machine base 6 and the movable seat 4 can be changed under the action of the spring assembly 8, avoiding damage to the O-ring and threads caused by linear feed. A second motor 12 is provided on the motor base 63, and the second motor 12 is connected to the movable seat 4 via a ball screw assembly. A ball screw nut is provided on the movable seat 4. A lead screw is connected to the transmission of the second motor 12, which is threaded to the ball screw nut. The second motor 12 drives the movable seat 4 to move left and right. A splined shaft 9 is mounted on the lower part of the machine base 6 via a bearing. A reducer 11 is mounted on the motor base 63 and is driven by the reducer 11 to the splined shaft 9. The reducer 11 is driven by the first motor 10, which drives the splined shaft 9 to rotate. A quick-change chuck 13 is mounted on the upper part of the machine base 6 via a bearing. A socket wrench 14 is detachably connected to the quick-change chuck 13 and engages with the valve core port nut 15. A first gear 16 is mounted on the splined shaft 9 via a spline engagement. The first gear 16 can slide left and right on the splined shaft 9. A second gear 17 is mounted on the quick-change chuck 13 and is driven by the first gear 16. The first gear 16 drives the second gear 17 to rotate, and the second gear 17 drives the quick-change chuck 13 to rotate.

[0020] Specifically, the spring assembly 8 includes a guide shaft, one end of which is fixedly connected to the movable seat 4. The machine base 6 is provided with a bushing, and the guide shaft and bushing are correspondingly provided and slidably connected. The end of the guide shaft is provided with a limit block, which is configured to cooperate with the machine base 6. The guide shaft is fitted with a spring, and the two ends of the spring are respectively connected to the movable seat 4 and the machine base 6. In the final stage of the tightening action, the movable seat 4 continues to feed, the machine base 6 is subjected to a reaction force and the feed amount decreases, the spring assembly 8 is compressed and deformed, and the distance between the movable seat 4 and the machine base 6 is shortened.

[0021] Specifically, the main shaft of the reducer 11 is connected to a torque sensor, which is connected to the splined shaft 9 to measure the tightening torque.

[0022] Specifically, both the first gear 16 and the second gear 17 are helical gears. Due to the tooth profile design and meshing clearance issues, the spur gear meshing structure causes a large cumulative error during power transmission, which directly affects the precise control of the tightening torque. Using helical gears can enable precise control of the tightening torque.

[0023] Specifically, the base 6 has a limiting structure inside, and the limiting structure is configured to cooperate with both sides of the first gear 16 to limit the first gear 16 so that it can move relative to the base 6.

[0024] The working principle of this utility model: This device is placed on one side of the washer assembly device, which assembles the washer. The valve core port nut 15 is installed onto the socket wrench 14. The PLC-based controller is connected to the first motor 10, the second motor 12, and the torque sensor. The first motor 10 drives the movable seat 4 to move to the right. The movable seat 4 cooperates with the spring assembly 8 to drive the machine base 6 to move to the right. The second motor 12 drives the spline shaft 9 to rotate. The first gear 16 drives the second gear 17 to rotate, which in turn drives the socket wrench 14 to rotate, assembling the valve core port nut 15 onto one end of the CDC assembly. In the final stage of the tightening action, the movable seat 4 continues to feed, and the threads of the valve core port nut 15 and the CDC assembly undergo slight deformation. The machine base 6 is subjected to a reaction force, and the feed amount decreases. The spring assembly 8 is compressed and deformed, and the distance between the movable seat 4 and the machine base 6 is shortened, providing buffering. The torque sensor senses the torque. When the torque force reaches the set value, the second motor 12 stops rotating, and the first motor 10 drives the machine base 6 to move to the left to reset.

[0025] This invention reduces the size of the device by using a stacked design with a splined shaft 9, and allows for easy combination with other devices to complete the assembly of the adjustable damping shock absorber (CDC) components in one go. The device also includes a spring assembly 8 and a torque sensor, which can buffer the feed assembly and sense torque in a timely manner, avoiding damage to the O-rings and threads, and improving product quality.

[0026] The above are merely optional embodiments of this utility model and are not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0027] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

Claims

1. An automatic nut installation device for CDC assembly, characterized in that: The system includes a base (1), a movable seat (4), and a base (6). The base (1) has side plates (2) on both its front and rear sides. A motor base (63) is located on the left side of the base (1). A slide rail (18) is located on the inner side of the side plate (2). The movable seat (4) has first sliders (5) on both sides, and these sliders (5) are slidably connected to the slide rails (18). The base (6) has second sliders (7) on both its front and rear sides, and these sliders (7) are slidably connected to the slide rails (18). The movable seat (4) and the base (6) are connected by a spring assembly (8). A second motor (12) is mounted on the motor base (63). The machine base (6) is connected to the movable seat (4) via a ball screw assembly. A spline shaft (9) is provided below the machine base (6) via a bearing. A reducer (11) is provided on the motor base (63) and the reducer (11) is connected to the spline shaft (9). A first motor (10) is connected to the reducer (11). A quick-change chuck (13) is provided on the upper part of the machine base (6) via a bearing. A socket wrench (14) is detachably connected to the quick-change chuck (13). A first gear (16) is provided on the spline shaft (9) via a spline engagement. A second gear (17) is provided on the quick-change chuck (13). The second gear (17) is connected to the first gear (16).

2. The automatic nut installation device for CDC assembly according to claim 1, characterized in that: The spring assembly (8) includes a guide shaft, one end of which is fixedly connected to the movable seat (4). The base (6) is provided with a bushing. The guide shaft and the bushing are correspondingly provided and slidably connected. The end of the guide shaft is provided with a limit block and the limit block is configured to cooperate with the base (6). The guide shaft is fitted with a spring and the two ends of the spring are respectively connected to the movable seat (4) and the base (6).

3. The automatic nut installation device for CDC assembly according to claim 1, characterized in that: The main shaft of the reducer (11) is connected to a torque sensor, which is connected to the spline shaft (9).

4. The automatic nut installation device for CDC assembly according to claim 1, characterized in that: Both the first gear (16) and the second gear (17) are helical gears.

5. The automatic nut installation device for CDC assembly according to claim 1, characterized in that: The base (6) is provided with a limiting structure inside, and the limiting structure is configured to cooperate with both sides of the first gear (16).

Images