Automatic feeding device for pressure spring height detector

Abstract

The utility model discloses an automatic feeding device for a pressure spring height detector, which relates to the technical field of spring processing equipment, and comprises a support frame, the support frame is fixedly connected to a bottom frame, a sliding rod is slidably connected in the support frame and fixed in the support frame through a jackscrew, and a discharge pipe is fixedly connected to the upper end of the sliding rod. A discharging port of the discharging pipe extends to the upper end of the working disc, the air cylinder connecting frame is fixedly connected to the side wall of the supporting frame, a first air cylinder and a second air cylinder are oppositely arranged at the positions, located at the discharging port of the lower end of the discharging pipe, of the air cylinder connecting frame, and the movable ends of the first air cylinder and the second air cylinder are both connected with semi-arc-shaped clamping plates. According to the compression spring length detection device, disordered compression springs are changed into compression springs vertically standing on the working disc through joint cooperation of the discharging pipe, the proximity switch, the first air cylinder and the second air cylinder, and a basis is provided for subsequent compression spring length detection.

Description

Technical Field

[0001] The utility model relates to the technical field of spring processing equipment, in particular to an automatic feeding device for a compression spring height detection machine. Background Art

[0002] Compression springs are widely used in life. Compression springs are made by spirally winding iron wire or steel wire according to a certain rule and then cutting them through shearing equipment. During the production process of compression springs, some compression springs are of different lengths, resulting in some compression springs failing to meet the use requirements. There are many reasons for the above, which may be problems with the materials of the batch of iron wire or steel wire, or it may be that the production process is unstable or there are problems with the equipment accuracy. Therefore, the compression springs after production need to be transmitted to the compression spring height detection machine for length detection. However, how to make the chaotic compression springs stand vertically on the working disk of the compression spring height detection machine according to the process requirements is a technical problem that needs to be solved urgently. Utility Model Content

[0003] The purpose of the utility model is to provide an automatic feeding device for a compression spring height detection machine in view of the problems and shortcomings described in the background technology.

[0004] An automatic feeding device for a compression spring height detection machine comprises a support frame, the lower end of the support frame is fixedly connected to the upper end of the bottom frame, a sliding rod is slidably connected to the inside of the support frame and is fixed in the support frame through a top screw, a discharge pipe is fixedly connected to the upper end of the sliding rod, a discharge port at the lower end of the discharge pipe extends to the upper end of a working disk, a cylinder connecting frame is fixedly connected to the side wall of the support frame, a first cylinder and a second cylinder are relatively arranged at the discharge port at the lower end of the discharge pipe on the cylinder connecting frame, the movable ends of the first cylinder and the second cylinder are fixedly connected with semi-arc clamping plates, the first cylinder and the second cylinder are connected to the air pump through an electromagnetic valve and an air pipe, a proximity switch is fixedly connected to the support frame at the upper end of the first cylinder, a detection end of the proximity switch is arranged at the edge of the discharge port at the lower end of the discharge pipe, the proximity switch is used to detect the falling of the spring and send a signal to the electromagnetic valve of the first cylinder and the second cylinder through a control unit to control the movement of the movable ends of the first cylinder and the second cylinder;

[0005] The proximity switch, the solenoid valves of the first cylinder and the second cylinder are all electrically connected to the control unit.

[0006] Preferably, the control unit is a PLC module, and the external circuit of the PLC module is connected to a touch screen.

[0007] Preferably, the front end of the discharge pipe is fixedly connected to a receiving hopper.

[0008] Beneficial effects of the utility model:

[0009] The utility model enables the chaotic compression spring to be transformed into a compression spring standing vertically on the working disk through the cooperation of the discharge pipe, the proximity switch, the first cylinder and the second cylinder, thereby providing a basis for subsequent compression spring length detection. The utility model has a relatively simple structure, low manufacturing cost, high efficiency and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a partial structural schematic diagram of the utility model installed on a compression spring height detection machine;

[0011] Figure 2 It is a three-dimensional schematic diagram of the utility model;

[0012] Figure 3 It is a front view of the compression spring to be tested of the utility model.

[0013] In the figure: 10: support frame; 11: sliding rod; 12: cylinder connecting frame; 13: first cylinder; 14: second cylinder; 15: discharge pipe; 16: receiving hopper; 17: proximity switch; 18: semi-arc clamping plate; 19: bottom frame; 20: working plate. DETAILED DESCRIPTION

[0014] Referring to the accompanying drawings, an automatic feeding device for a compression spring height detection machine includes a support frame 10, the lower end of the support frame 10 is fixedly connected to the upper end of the bottom frame 19, the sliding rod 11 is slidably connected to the inside of the support frame 10 and fixed in the support frame 10 through a top screw, the discharge pipe 15 is fixedly connected to the upper end of the sliding rod 11, and the discharge port at the lower end of the discharge pipe 15 extends to the upper end of the working disk 20, the cylinder connecting frame 12 is fixedly connected to the side wall of the support frame 10, and the cylinder connecting frame 12 is located at the discharge port at the lower end of the discharge pipe 15. The first cylinder 13 and the second cylinder 14 are relatively arranged on the cylinder connecting frame 12, and the movable ends of the first cylinder 13 and the second cylinder 14 are fixedly connected with a semi-arc clamping plate 18, and the first cylinder 13 and the first cylinder 14 are fixedly connected. The second cylinder 14 is connected to the air pump through the solenoid valve and the air pipe (the cylinder, the solenoid valve, the air pump and the air pipe are all known products in the prior art, and their connection relationship is common knowledge in this field), the proximity switch 17 is fixedly connected to the support frame 10 at the upper end of the first cylinder 13, and the detection end of the proximity switch 17 is arranged at the edge of the discharge port at the lower end of the discharge pipe 15. The proximity switch 17 is used to detect the fall of the spring and send a signal to the solenoid valves of the first cylinder 13 and the second cylinder 14 through the control unit to control the movement of the movable ends of the first cylinder 13 and the second cylinder 14 (the proximity switch 17 is a known product in the prior art, and the connection between the proximity switch 17 and the control unit is common knowledge in this field);

[0015] The proximity switch 17, the solenoid valves of the first cylinder 13 and the second cylinder 14 are all electrically connected to the control unit.

[0016] Furthermore, the control unit is a PLC module, and the external circuit of the PLC module is connected to a touch screen.

[0017] Furthermore, the first end of the discharge pipe 15 is fixedly connected to a receiving hopper 16 .

[0018] The working principle and use process of this utility model:

[0019] When in use, by adjusting the height of the sliding rod 11 according to the required production model of the compression spring, the distance between the discharge port at the lower end of the discharge pipe 15 and the upper surface of the working disk 20 can be indirectly adjusted. After the adjustment is completed, the sliding rod 11 can be fixed in the support frame 10 with the top screw, and the control unit is started. The control unit controls the motor at the lower end of the working disk 20 to rotate. At this time, the working disk 20 will also rotate, and the compression spring falls from the previous process into the receiving hopper 16, and then falls into the discharge pipe 15 through the receiving hopper 16. When the compression spring falls from under the discharge pipe 15, the proximity switch 17 detects the compression spring, and the proximity switch 17 feeds back the signal to the control unit. The control unit controls the solenoid valves of the first cylinder 13 and the second cylinder 14 to start, and the control unit controls the motor at the lower end of the working disk 20 to stop rotating, and the movable ends of the first cylinder 13 and the second cylinder 14 extend, and the compression spring is clamped by the semi-arc clamping plates 18 connected to the movable ends of the first cylinder 13 and the second cylinder 14, and the lower surface of the compression spring contacts The upper surface of the working disk 20, at this time, the compression spring stands vertically on the upper surface of the working disk 20, after a period of time, the control unit controls the solenoid valves of the first cylinder 13 and the second cylinder 14 to start, and the first cylinder 13 and the second cylinder 14 contract, and the control unit controls the motor at the lower end of the working disk 20 to rotate again, and the compression spring rotates with the working disk 20 to perform the next detection; Regarding when the control unit controls the first cylinder 13 and the second cylinder 14 to contract, the following method can be adopted: For example: After the proximity switch 17 detects the signal that the compression spring falls, the control unit controls the solenoid valves of the first cylinder 13 and the second cylinder 14 to start, the control unit controls the motor at the lower end of the working disk 20 to stop rotating, the movable ends of the first cylinder 13 and the second cylinder 14 extend for 2 seconds, and the motor stops rotating for 2 seconds. After 2 seconds, the control unit controls the solenoid valves of the first cylinder 13 and the second cylinder 14 to work to realize the contraction of the first cylinder 13 and the second cylinder 14, and the control unit controls the motor at the lower end of the working disk 20 to rotate again.

[0020] It should be noted that:

[0021] The technical problem to be solved by the utility model is clear, the technical solution adopted is perfect, and the proposed technical problem can be solved. The device has good performance after long-term use;

[0022] The compression springs dropped into the receiving hopper 16 are dropped at intervals, because the shearing equipment has a processing process for processing the compression springs, so there will be no situation where two compression springs enter the discharge pipe 15 together;

[0023] The working disc 20 rotates very slowly, and the centrifugal force on the compression spring will not cause the compression spring to fall from the vertical state;

[0024] The diameter of the compression spring is slightly smaller than the inner diameter of the discharge pipe 15, so the compression spring will not turn over or get stuck in the discharge pipe 15 laterally;

[0025] See attached Figure 3 As shown, the compression spring tested in this patent has a diameter of 80 mm, a free height of 120 mm, and a rectangular cross-section.

Claims

1. An automatic feeding device for a compression spring height detection machine, characterized in that: The invention comprises a support frame (10), wherein the lower end of the support frame (10) is fixedly connected to the upper end of the bottom frame (19), a sliding rod (11) is slidably connected to the inside of the support frame (10) and is fixed to the support frame (10) by a top screw, a discharge pipe (15) is fixedly connected to the upper end of the sliding rod (11), a discharge port at the lower end of the discharge pipe (15) extends to the upper end of the working plate (20), a cylinder connecting frame (12) is fixedly connected to the side wall of the support frame (10), and a first cylinder (13) and a second cylinder (14) are arranged on the cylinder connecting frame (12) at the discharge port at the lower end of the discharge pipe (15), and the first cylinder (13) and the second cylinder (14) are arranged opposite to each other. The movable ends of the second cylinder (14) are fixedly connected with a semi-arc clamping plate (18); the first cylinder (13) and the second cylinder (14) are connected to the air pump via a solenoid valve and an air pipe; a proximity switch (17) is fixedly connected to a support frame (10) at the upper end of the first cylinder (13); a detection end of the proximity switch (17) is arranged at the edge of the discharge port at the lower end of the discharge pipe (15); the proximity switch (17) is used to detect the fall of the spring and send a signal to the solenoid valves of the first cylinder (13) and the second cylinder (14) through a control unit to control the movement of the movable ends of the first cylinder (13) and the second cylinder (14); The proximity switch (17), the solenoid valves of the first cylinder (13) and the second cylinder (14) are all electrically connected to the control unit.

2. The automatic feeding device for a compression spring height detection machine according to claim 1, characterized in that: The control unit is a PLC module, and the external circuit of the PLC module is connected to a touch screen.

3. The automatic feeding device for a compression spring height detection machine according to claim 1, characterized in that: The front end of the discharge pipe (15) is fixedly connected to a receiving hopper (16).

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