Snap ring assembly mechanism
The automated production line for the snap ring assembly mechanism has solved the problems of positioning accuracy and pressure control in the snap ring press-fitting of the spindle of the electric drill gearbox, achieving efficient and stable snap ring assembly and reducing labor costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN LANBING AUTOMATION EQUIP CO LTD
- Filing Date
- 2025-09-09
- Publication Date
- 2026-07-31
AI Technical Summary
The current pressing process for the spindle retaining ring of electric drill gearboxes relies on manual operation, which results in problems such as insufficient positioning accuracy, unbalanced pressure control, low production efficiency, and high labor costs.
The snap ring assembly mechanism, including a stand, motion clamping module, press-fitting module, and positioning module, is adopted to realize the positioning, clamping, and press-fitting of snap rings through an automated production line, ensuring constant pressure and improving production efficiency.
It has enabled automated pressing of snap rings, improved positioning accuracy and pressure consistency, reduced labor costs, and increased production efficiency.
Smart Images
Figure CN224575530U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric drill gearbox assembly technology, specifically to a snap ring assembly mechanism. Background Technology
[0002] As a commonly used handheld power tool, the gearbox of an electric drill is the core component for transmitting power and regulating speed. The retaining ring (also known as a retaining ring or snap ring) is a key connecting component between the spindle and the circulating mold assembly inside the gearbox. It needs to be fixed in the pre-set groove of the spindle through a press-fitting process to ensure the structural stability and transmission accuracy of the gearbox when it is running at high speed.
[0003] Currently, the industry generally uses manual pressing for the pressing process of the spindle snap ring of electric drill gearboxes. However, this method still has many shortcomings in practical applications, as follows: Insufficient positioning accuracy, relying on manual visual alignment, leads to uneven force on the retaining ring after press-fitting; Uneven pressure control means that the pressure applied by manual tools cannot be quantified, and differences in the force exerted by operators directly affect the consistency of the elastic deformation of the snap ring. Low productivity and high labor costs; Therefore, a snap ring assembly mechanism is urgently needed to solve the above problems. Utility Model Content
[0004] In order to overcome the above-mentioned technical problems, the purpose of this utility model is to provide a snap ring assembly mechanism to solve the problem that the manual pressing method mentioned in the background art still has certain shortcomings in practical applications. On the one hand, the pressing quality is unstable and the product consistency is poor; on the other hand, the production efficiency is low and the labor cost is high.
[0005] This utility model provides the following technical solution: a snap ring assembly mechanism, including a stand on the conveying line of the circulating mold assembly, and the stand is connected to a motion clamping module for clamping the bullet head, driving the bullet head to move toward or away from the circulating mold assembly; Additionally, a press-fit sleeve module connected to the top of the stand and pressed down toward the circulating mold assembly, wherein the press-fit sleeve module, the bullet head, and the main shaft of the circulating mold assembly are on the same Z-axis when pressed into the retaining ring.
[0006] To achieve the above technical solution, a bullet head that can move up and down is used, and the pressure head of the pressing sleeve module pushes the retaining ring to move along the surface of the bullet head. This allows the retaining ring to be quickly pressed into the main shaft of the circulating mold assembly to complete the assembly. Compared with the existing technology, this device can produce continuously, the pressure applied to the retaining ring is constant, and the overall production efficiency is higher.
[0007] As a further improvement to this utility model, the motion clamping module drives the bullet head to move up and down.
[0008] The above technical solution accelerates the speed at which the bullet head enters the main shaft of the circulating module assembly.
[0009] As a further improvement to this utility model, it also includes a vibratory feeder module placed on the outside of the upright for sequentially feeding the retaining rings, and a clamping and handling assembly for sequentially picking up the retaining rings onto the bullet head.
[0010] The above technical solution facilitates the automatic placement of the retaining ring onto the bullet tip.
[0011] As a further improvement to this utility model, a guide module is provided on the outside of the pressing head of the pressing sleeve module, and the track of the guide module is laid on the upper part along the movement direction of the guide module, and the slider of the guide module is connected to the pressing head of the pressing sleeve module.
[0012] The above technical solution improves the guiding effect of the movement at the pressing head of the pressing sleeve module.
[0013] As a further improvement to this utility model, it also includes a plurality of positioning modules connected to the upright and symmetrical about the center of the circulating module assembly, connected to the same controller, for positioning the main shaft of the circulating module assembly.
[0014] To achieve the above technical solution, the main shaft of the circulating mold assembly is assisted in clamping to prevent it from shifting.
[0015] As a further improvement to this utility model, the clamping top side of the positioning module is designed with an arc shape to fit the outer side of the main shaft of the circulating module assembly.
[0016] The above technical solution improves the clamping stability of the positioning head of the positioning module on the main shaft of the circulating module assembly.
[0017] The technical effects and advantages of this utility model are as follows: 1. This utility model uses a bullet head that can move up and down. The pressing head of the pressing sleeve module pushes the retaining spring to move along the surface of the bullet head, so that the retaining spring can be quickly pressed into the main shaft of the circulating mold assembly to complete the assembly.
[0018] 2. Compared with the prior art, this device can produce continuously, applies constant pressure to the snap ring, and has higher overall production efficiency. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a top-view perspective view of the overall structure of this utility model.
[0021] Figure 2 This is a front view schematic diagram of the overall structure of this utility model.
[0022] Figure 3 This is a top view of the overall structure of this utility model.
[0023] Figure 4 for Figure 1 Enlarged schematic diagram of the local structure within the dashed box.
[0024] The names represented by the part numbers in the above diagram are as follows: 100. Stand; 200. Motion clamping module; 300. Bullet head; 400. Press-in sleeve module; 410. Guide module; 500. Positioning module; 600. Vibratory feeder module; 610. Clamping and handling assembly; 700. Circulation mold assembly; Detailed Implementation The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings.
[0025] Example: Refer to the attached diagram in the instruction manual. Figure 1-4 This utility model provides a snap ring assembly mechanism for automatically pressing snap rings onto the spindle of the cyclic mold assembly 700. Its core structure and function are as follows: Main frame and conveyor module Frame 100: serves as the foundation for the mechanism installation; Circulating mold assembly 700 conveyor line: A chain conveyor set along the X-axis is used to transport the main shaft workpiece to be assembled with snap rings to the assembly station; Positioning module 500: Two sets are symmetrically distributed along the center of the main shaft of the circulating mold assembly 700. Each set includes a drive cylinder and an arc-shaped positioning head (the arc matches the outer diameter of the main shaft). The main shaft of the circulating mold assembly 700 is radially tightened through synchronous air circuit control.
[0026] Snap ring positioning and clamping module Motion clamping module 200: Installed on the side guide rail of the upright 100, it is driven to move up and down by an electric slider, and clamps the bullet head 300 through a pneumatic gripper, driving it to move up and down along the Z-axis; Bullet Head 300: A pre-positioning component for the retaining ring, with a guide cone surface at the top (to facilitate the insertion of the retaining ring), and the shaft diameter is 0.3 to 0.5 mm smaller than the inner diameter of the retaining ring (to match the retaining ring specifications).
[0027] Snap ring press-in module Press-in module 400: Fixed to the top of the stand 100, the press head is driven by a pneumatic lifting cylinder. The press head is set on the same Z-axis as the main shaft of the bullet head 300 and the circulating mold assembly 700 to ensure that the snap ring is pressed vertically.
[0028] Guide module 410: includes a parallel linear guide rail and a slider. The slider is rigidly connected to the pressure head of the press-fit module 400 to limit the radial displacement of the pressure head.
[0029] Snap ring feeding and handling module Vibratory feeder module 600: It consists of a circular vibratory feeder and a linear feeding track. Vibration oriented the snap rings (opening upwards), and the end is equipped with a material separating mechanism (separating 1 snap ring at a time).
[0030] Clamping and transporting assembly 610: XYZ three-axis electric slide, with a miniature pneumatic finger at the end, used to grab the snap ring from the vibratory feeder module 600 and transfer it to the bullet head 300.
[0031] Assembly process flow Feeding: The vibratory feeder module 600 starts, and the snap rings are arranged by vibration and enter the linear track. The material distribution mechanism separates the individual snap rings to the position to be picked up. Grasping and Insertion: The gripping and conveying component 610 moves to the position to be picked up, the pneumatic finger closes and clamps the retaining spring, rises and then moves horizontally to directly above the bullet head 300, descends and inserts the retaining spring into the shaft of the bullet head 300, and then the finger is released and the component resets; Workpiece positioning: The main shaft of the 700 circulating mold assembly is transported to the assembly station by the conveyor line and stops moving; Spindle clamping: The cylinders of the two positioning modules 500 extend synchronously, and the arc-shaped positioning head clamps the spindle from the circumferential direction to achieve radial positioning; Bullet docking: The motion clamping module 200 drives the bullet head 300 (with a snap ring) to descend and insert into the snap ring groove at the top of the main shaft, and then the pneumatic gripper releases; Pressing in the snap ring: The lifting cylinder of the pressing sleeve module 400 descends, the pressing head contacts the snap ring and applies axial force, pressing the snap ring into the snap ring groove of the main shaft along the surface of the bullet head 300; Mechanism reset: The pressure head rises and resets, the motion clamping module 200 re-clamps the bullet head 300 and drives it to rise back to its initial height, the positioning module 500 cylinder retracts, the main shaft is released, and the conveyor line starts to transfer the assembled workpiece to the next process.
[0032] In this specification, the terms "an embodiment," "example," "specific example," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
Claims
1. A snap ring assembly mechanism, characterized in that: Includes a stand (100) disposed on the conveying line of the circulating module assembly (700), and the stand (100) is connected to a motion clamping module (200) for clamping the bullet head (300), driving the bullet head (300) to move toward or away from the circulating module assembly (700); In addition, the press-fit sleeve module (400) connected to the top of the stand (100) and pressed down toward the circulating mold assembly (700) is located on the same Z-axis when the main shaft of the press-fit sleeve module (400), the bullet head (300) and the circulating mold assembly (700) are pressed into the retaining ring.
2. The clasp assembly of claim 1, wherein: The motion clamping module (200) drives the bullet head (300) to move up and down.
3. The clasp assembly of claim 1, wherein: It also includes a vibratory feeder module (600) placed outside the stand (100) for sequentially feeding the circlips and a clamping and handling assembly (610) for sequentially picking up the circlips onto the bullet head (300).
4. The clasp assembly of claim 1, wherein: The outer side of the press head of the press-fitting sleeve module (400) is provided with a guide module (410), and the track of the guide module (410) is laid on the stand (100) along the movement direction of the guide module (410). The slider of the guide module (410) is connected to the press head of the press-fitting sleeve module (400).
5. The clasp assembly of claim 1, wherein: It also includes several positioning modules (500) connected to the stand (100) and symmetrical about the center of the circulating module assembly (700), connected to the same controller, for positioning the main shaft of the circulating module assembly (700).
6. The clasp assembly of claim 5, wherein: The clamping top side of the positioning module (500) is designed with an arc shape to fit the outer side of the main shaft of the circulating module assembly (700).