High-precision elbow assembling machine

Abstract

The utility model relates to elbow assembly technical field, specifically disclose a kind of high-precision elbow assembling machine, including rack and setting on the rack carousel mechanism, nut feeding mechanism, elbow feeding mechanism, push elbow mechanism, rubber ring feeding mechanism, discharge mechanism, electronic cam mechanism and rubber ring pressing mechanism, the electronic cam mechanism between the nut feeding mechanism and elbow feeding mechanism, the push elbow mechanism between the electronic cam mechanism and rubber ring feeding mechanism, the rubber ring pressing mechanism between the rubber ring feeding mechanism and discharge mechanism. The utility model is by setting electronic cam mechanism to realize the arc curve of elbow imitation to accurately put elbow into nut, can realize high-precision position control, high flexibility, and using double vibration disk feeding mode, can improve elbow assembly capacity, greatly improve work efficiency, and work efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the field of elbow assembly technology, and in particular to a high-precision elbow assembly machine. Background Technology

[0002] Elbows are common components in washing machine water supply pipes, typically connected and assembled onto the pipe with nuts. However, current elbow assembly methods are mostly manual, which is labor-intensive and inefficient. A search reveals that Chinese utility model patent CN202322633805.7 discloses an automatic FR elbow assembly machine, comprising a shell feeding device, a pin feeding device, a core feeding device, a plug feeding device, a cap feeding device, a prong feeding device, a pin assembly device A, a pin assembly device B, a shell semi-finished product flow channel device, a turntable mounting device, a prong assembly device, an electrical testing device, a welding frame, and a protective cover. The welding frame has a pin assembly device A located near the shell feeding device, with the pin feeding device above it and the plug feeding device immediately to its left. The FR elbow automatic assembly machine described in this utility model has a high degree of automation, high production efficiency, and high production capacity. Tasks that traditionally required ten operators can now be completed by one operator. It is simple to operate, easy to adjust, has stable machine performance, and a high yield rate, reaching over 98%.

[0003] For example, Chinese utility model patent application CN202120190440.3 discloses a bend connector assembly machine, including a frame, a turntable rotatably mounted on the frame, a feeding mechanism for feeding bend connectors, a fixture for fixing bend connectors, and a discharging mechanism. The fixture is arranged around the turntable and has a connector groove for positioning the bend connector. The feeding mechanism includes a telescopic rotary cylinder fixed on the frame and a cylinder clamp connected to the output end of the telescopic rotary cylinder. A clamping plate is fixed on the clamping head of the cylinder clamp, and the clamping plate has an arc-shaped clamping groove adapted to the outer diameter of the bend connector. The feeding mechanism of this utility model includes a telescopic rotary cylinder and a cylinder clamp. The finished product is clamped by the cylinder clamp, and then the product is rotated to a designated position by the telescopic rotary cylinder to complete the feeding of the finished product. The structure is simple, the cost is low, the temporary space is small, and it helps to improve the product feeding efficiency.

[0004] While the existing elbow assembly machines can meet basic usage requirements, they all use a single vibrating disc cylinder for feeding, which is inefficient. Furthermore, when transferring the elbow into the nut, they cannot accurately mimic the elbow's arc curve to place it precisely, resulting in poor flexibility and low working accuracy. Therefore, it is necessary to further improve the existing technology. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a high-precision elbow assembly machine that addresses the above-mentioned deficiencies of the prior art. By setting an electronic cam mechanism, the machine can accurately place the elbow into the nut by mimicking the arc curve of the elbow. It can achieve high-precision position control, high flexibility, and adopt a dual vibratory feeder method, which can improve the elbow assembly capacity and greatly improve work efficiency.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0007] A high-precision elbow assembly machine includes a frame and a turntable mechanism, a nut feeding mechanism, an elbow feeding mechanism, an elbow pushing mechanism, a rubber ring feeding mechanism, a discharge mechanism, an electronic cam mechanism, and a rubber ring pressing mechanism mounted on the frame. The electronic cam mechanism is located between the nut feeding mechanism and the elbow feeding mechanism, the elbow pushing mechanism is located between the electronic cam mechanism and the rubber ring feeding mechanism, and the rubber ring pressing mechanism is located between the rubber ring feeding mechanism and the discharge mechanism.

[0008] Preferably, the nut feeding mechanism, electronic cam mechanism, push-bend head mechanism, rubber ring feeding mechanism, rubber ring pressing mechanism, and discharge mechanism are all arranged sequentially along the edge of the circle above the turntable mechanism.

[0009] Preferably, the turntable mechanism includes a turntable drive motor and a turntable that is drively connected to the turntable drive motor, and the turntable is provided with a plurality of workpiece placement plates arranged sequentially along the edge of a circle.

[0010] Preferably, the outer side of the nut feeding mechanism is provided with two nut feeding guide rails, the outer side of the elbow feeding mechanism is provided with two elbow feeding guide rails, and the outer side of the rubber ring feeding mechanism is provided with two rubber ring feeding guide rails.

[0011] Preferably, the electronic cam mechanism is provided with a transverse cylinder and a lifting mechanism mounting plate that is drivenly connected to the transverse cylinder. The lifting mechanism mounting plate is provided with a lifting servo motor and a rotating mechanism mounting plate that is drivenly connected to the lifting servo motor. The rotating mechanism mounting plate is provided with a rotating servo motor and a rotating shaft that is drivenly connected to the rotating servo motor. A gripper mounting plate is provided on the rotating shaft. The gripper mounting plate is provided with a plurality of gripper cylinders and grippers that are drivenly connected to the gripper cylinders.

[0012] Preferably, the rubber ring pressing mechanism is provided with a rubber ring pressing cylinder, an elbow detection contact plate, and a rubber ring pressing plate that is pulsatorically connected to the rubber ring pressing cylinder. The rubber ring pressing plate is provided with a pressure spring cylinder and an elbow detection tension spring that is pulsatorically connected to the pressure spring cylinder. A lower pressing head is provided at the bottom of the rubber ring pressing plate. The elbow detection tension spring passes through the inner side of the lower pressing head. The elbow detection contact plate is located below the rubber ring pressing plate.

[0013] By adopting the above technical solution, the high-precision elbow assembly machine provided by this utility model has the following beneficial effects: The electronic cam mechanism in this high-precision elbow assembly machine is located between the nut feeding mechanism and the elbow feeding mechanism; the elbow pushing mechanism is located between the electronic cam mechanism and the rubber ring feeding mechanism; the rubber ring pressing mechanism is located between the rubber ring feeding mechanism and the discharge mechanism; the nut feeding mechanism clamps and conveys the nut onto the turntable mechanism; the elbow feeding mechanism conveys the elbow to the area below the electronic cam mechanism; and the electronic cam mechanism loads the elbow from the elbow feeding mechanism... The elbow is clamped and placed on the nut. The elbow pushing mechanism pushes the elbow so that its upper end falls into the inside of the nut. The rubber ring feeding mechanism clamps and feeds the rubber ring into the inside of the nut. The rubber ring pressing mechanism presses the rubber ring down to the bottom inside of the nut. The discharge mechanism clamps and feeds the assembled elbow to the next station. By setting an electronic cam mechanism, the elbow is accurately placed into the nut by mimicking the arc curve of the elbow. This achieves high-precision position control and high flexibility. In addition, the use of a dual vibratory feeder can improve the elbow assembly capacity and greatly improve work efficiency. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is a perspective view of the present invention from another angle;

[0016] Figure 3 This is a partial exploded view of the electronic cam mechanism in this utility model;

[0017] Figure 4 This is a partial exploded view of the medium-pressure rubber ring mechanism of this utility model;

[0018] In the diagram, 1-frame, 2-turntable mechanism, 3-nut feeding mechanism, 4-elbow feeding mechanism, 5-elbow pushing mechanism, 6-rubber ring feeding mechanism, 7-discharging mechanism, 8-electronic cam mechanism, 9-rubber ring pressing mechanism, 10-turntable drive motor, 11-turntable, 12-workpiece placement plate, 13-nut feeding guide rail, 14-elbow feeding guide rail, 15-rubber ring feeding guide rail, 16-lateral cylinder, 17-lifting mechanism mounting plate, 18-lifting servo motor, 19-rotation mechanism mounting plate, 20-rotation servo motor, 21-rotation shaft, 22-gripper mounting plate, 23-gripper cylinder, 24-gripper, 25-rubber ring pressing cylinder, 26-elbow detection contact plate, 27-rubber ring pressure plate, 28-tension spring cylinder, 29-elbow detection tension spring, 30-lower pressure head, 31-nut positioning cylinder, 32-nut positioning chuck. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0022] like Figure 1-4As shown, the high-precision elbow assembly machine includes a frame 1 and a turntable mechanism 2, a nut feeding mechanism 3, an elbow feeding mechanism 4, an elbow pushing mechanism 5, a rubber ring feeding mechanism 6, a discharge mechanism 7, an electronic cam mechanism 8, and a rubber ring pressing mechanism 9, all mounted on the frame 1. The electronic cam mechanism 8 is located between the nut feeding mechanism 6 and the elbow feeding mechanism 4, the elbow pushing mechanism 5 is located between the electronic cam mechanism 8 and the rubber ring feeding mechanism 6, and the rubber ring pressing mechanism 9 is located between the rubber ring feeding mechanism 6 and the discharge mechanism 7. Understandably, the nut feeding mechanism 3 clamps and conveys the nut onto the turntable mechanism 2, the elbow feeding mechanism 4 conveys the elbow to the area below the electronic cam mechanism 8, the electronic cam mechanism 8 clamps and conveys the elbow from the elbow feeding mechanism 4 onto the nut, the elbow pushing mechanism 5 pushes the elbow so that its upper end falls into the inside of the nut, the rubber ring feeding mechanism 6 clamps and conveys the rubber ring to the inside of the nut, the rubber ring pressing mechanism 9 presses the rubber ring down to the bottom inside of the nut, and the discharge mechanism 7 clamps and conveys the assembled elbow to the next station.

[0023] Specifically, the nut feeding mechanism 3, the electronic cam mechanism 8, the bending head mechanism 5, the rubber ring feeding mechanism 6, the rubber ring pressing mechanism 9, and the discharge mechanism 7 are all arranged sequentially along the edge of a circle above the turntable mechanism 2. The turntable mechanism 2 includes a turntable drive motor 10 and a turntable 11 that is connected to the turntable drive motor 10. Several workpiece placement plates 12 are arranged sequentially along the edge of a circle on the turntable 1. Two nut feeding guide rails 13 are arranged on the outer side of the nut feeding mechanism 3, two bending head feeding guide rails 14 are arranged on the outer side of the bending head feeding mechanism 4, and two rubber ring feeding guide rails 15 are arranged on the outer side of the rubber ring feeding mechanism 6. Understandably, the turntable drive motor 10 drives the turntable 11 to rotate, and the workpiece placement plate 12 is sequentially driven to convey the workpiece to each mechanism; the nut feeding guide rail 13, the elbow feeding guide rail 14, and the rubber ring feeding guide rail 15 are respectively placed with nuts, elbows and rubber rings arranged in sequence, so as to be conveyed by the nut feeding mechanism 3, the elbow feeding mechanism 4 and the rubber ring feeding mechanism 6.

[0024] Specifically, the electronic cam mechanism 8 is provided with a transverse cylinder 16 and a lifting mechanism mounting plate 17 that is driven by the transverse cylinder 16. The lifting mechanism mounting plate 17 is provided with a lifting servo motor 18 and a rotating mechanism mounting plate 19 that is driven by the lifting servo motor 18. The rotating mechanism mounting plate 19 is provided with a rotating servo motor 20 and a rotating shaft 21 that is driven by the rotating servo motor 20. The rotating shaft 21 is provided with a gripper mounting plate 22. The gripper mounting plate 22 is provided with a plurality of gripper cylinders 23 and grippers 24 that are driven by the gripper cylinders 23. Understandably, the transverse cylinder 16 pushes the lifting mechanism mounting plate 17, causing it to move laterally along the transverse linear guide rail. The lifting servo motor 18 drives the lifting synchronous belt to move, thereby causing the rotating mechanism mounting plate 19 to move up and down along the lifting linear guide rail. The rotating servo motor 20 drives the rotating shaft 21 to rotate, thereby causing the gripper mounting plate 22 to rotate. The gripper cylinder 23 drives the gripper 24 to grip the elbow. The movement trajectory of the gripper 24 is as follows: the gripper 24 first descends and grips the elbow on the elbow loading mechanism 4, then rises a certain distance, then moves forward laterally to above the nut placed on the turntable 11, while rotating to a certain angle, then descends again until the elbow is inserted into the nut, and finally the gripper 24 is released so that the elbow is placed into the nut, and then it moves back, thus repeating the cycle.

[0025] Specifically, the rubber ring pressing mechanism 9 is provided with a rubber ring pressing cylinder 25, an elbow detection contact plate 26, and a rubber ring pressing plate 27 that is drivenly connected to the rubber ring pressing cylinder 26. The rubber ring pressing plate 27 is provided with a pressure spring cylinder 28 and an elbow detection tension spring 29 that is drivenly connected to the pressure spring cylinder 28. A lower pressing head 30 is provided at the bottom of the rubber ring pressing plate 27. The elbow detection tension spring 29 passes through the inner side of the lower pressing head 30. The elbow detection contact plate 26 is located below the rubber ring pressing plate 27. Understandably, the elbow detection spring 29 and the elbow detection contact plate 26 are electrically connected to the positive and negative terminals of the power supply respectively via power lines. These positive and negative terminals are connected to an external PLC controller. During operation, the nut is located on the turntable 11, with the outlet of the elbow on the nut aligned with the elbow detection contact plate 26 and the inlet of the elbow aligned with the lower pressure head 30. First, the nut positioning cylinder 31 drives the nut positioning clamp 32 to move forward to block and fix the nut located on the turntable. Then, the rubber ring pressure cylinder 25 drives the rubber ring pressure plate 27. The downward movement causes the lower pressure head 30 to press the rubber ring on the nut. Finally, the pressure spring cylinder 28 drives the elbow detection spring 29 to move downward and pass through the lower pressure head 30 into the elbow. If there is no blockage in the elbow, the elbow detection spring 29 passes through the elbow and abuts against the elbow detection contact plate 26, thus forming an electrical circuit. If there is a blockage in the elbow, the elbow detection spring 29 will not pass through the elbow and will not be able to contact the elbow detection contact plate 26, so no electrical circuit will be formed, and the PLC controller will determine that it is a defective product.

[0026] Understandably, this utility model has a reasonable design and unique structure. By setting an electronic cam mechanism 8, it can accurately place the elbow into the nut by mimicking the arc curve of the elbow. It can achieve high-precision position control, high flexibility, and adopt a dual vibratory feeder method, which can improve the elbow assembly capacity and greatly improve work efficiency.

[0027] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A high-precision elbow assembly machine, comprising a frame and a turntable mechanism, a nut feeding mechanism, an elbow feeding mechanism, an elbow pushing mechanism, a rubber ring feeding mechanism, and a discharge mechanism mounted on the frame, characterized in that: It also includes an electronic cam mechanism and a rubber ring pressing mechanism. The electronic cam mechanism is located between the nut feeding mechanism and the elbow feeding mechanism, the elbow pushing mechanism is located between the electronic cam mechanism and the rubber ring feeding mechanism, and the rubber ring pressing mechanism is located between the rubber ring feeding mechanism and the discharge mechanism.

2. The high-precision elbow assembly machine according to claim 1, characterized in that: The nut feeding mechanism, electronic cam mechanism, push-bend head mechanism, rubber ring feeding mechanism, rubber ring pressing mechanism, and discharge mechanism are all arranged sequentially along the edge of the circle above the turntable mechanism.

3. The high-precision elbow assembly machine according to claim 1, characterized in that: The turntable mechanism includes a turntable drive motor and a turntable that is connected to the turntable drive motor. The turntable is provided with a plurality of workpiece placement plates that are arranged sequentially along the edge of a circle.

4. The high-precision elbow assembly machine according to claim 1, characterized in that: The nut feeding mechanism has two nut feeding guide rails on its outer side, the elbow feeding mechanism has two elbow feeding guide rails on its outer side, and the rubber ring feeding mechanism has two rubber ring feeding guide rails on its outer side.

5. The high-precision elbow assembly machine according to claim 1, characterized in that: The electronic cam mechanism is provided with a transverse cylinder and a lifting mechanism mounting plate that is driven by the transverse cylinder. The lifting mechanism mounting plate is provided with a lifting servo motor and a rotating mechanism mounting plate that is driven by the lifting servo motor. The rotating mechanism mounting plate is provided with a rotating servo motor and a rotating shaft that is driven by the rotating servo motor. A gripper mounting plate is provided on the rotating shaft. The gripper mounting plate is provided with a plurality of gripper cylinders and grippers that are driven by the gripper cylinders.

6. The high-precision elbow assembly machine according to claim 1, characterized in that: The rubber ring pressing mechanism is equipped with a rubber ring pressing cylinder, an elbow detection contact plate, and a rubber ring pressing plate that is pulsatingly connected to the rubber ring pressing cylinder. The rubber ring pressing plate is equipped with a pressure spring cylinder and an elbow detection tension spring that is pulsatingly connected to the pressure spring cylinder. A lower pressing head is provided at the bottom of the rubber ring pressing plate. The elbow detection tension spring passes through the inner side of the lower pressing head. The elbow detection contact plate is located below the rubber ring pressing plate.

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