CN204286354U - A kind of cylindrical spring testing apparatus for verticality - Google Patents

Abstract

The utility model provides a cylindrical spring verticality detection device, which includes a machine base, a linear guide rail mechanism, a detection seat, a positioning sleeve and a detection and control system composed of an alarm indicating device. The machine base is respectively connected with the linear guide rail mechanism and the positioning sleeve, and the detection seat Connected with the linear guide rail mechanism, a cylindrical detection seat inner hole with the same maximum physical outer diameter as the cylindrical spring to be tested is set on the detection seat, and a positioning hole with the same diameter as the inner hole of the detection seat is opened on the positioning sleeve. They are respectively electrically connected to the inspection and control system. The positioning sleeve is located under the detection seat and is insulated from the machine base. The central axes of the inner hole of the detection seat and the positioning hole on the positioning sleeve always coincide and are perpendicular to the horizontal plane. The utility model can be used to conveniently detect the verticality of the cylinder spring to be tested, which is convenient for both sampling and batch testing, and the detection result is accurate and reliable, and has outstanding advantages such as high detection efficiency and low detection cost.

Description

A cylindrical spring verticality detection device

technical field

The utility model relates to a spring detection device, in particular to a cylindrical spring verticality detection device suitable for detecting the verticality between the end face and the axis line of a cylindrical spring whose end face is ground flat.

Background technique

Cylindrical springs are commonly used parts in mechanical structures. In some precision instruments and equipment, there is a high requirement for the perpendicularity between the end face of the cylindrical spring and the axis. Since the spring has a certain stretching and elastic deformation after being stressed, it is very difficult to detect the verticality of the spring, especially the cylindrical spring.

At present, for the detection of the verticality between the end surface of the cylindrical spring and the axis line, it is usually carried out by using projection detection, V-shaped seat detection and other detection methods, but these detection methods are only suitable for sampling detection of the verticality of the cylindrical spring , the detection efficiency is low, and the detection error is large.

Utility model content

The technical problem to be solved by the utility model is: aiming at the problems existing in the prior art, a cylindrical spring verticality detection device is provided, which is convenient for detection, and the detection result is accurate and reliable, and the detection error is small.

The technical problem to be solved by the utility model is achieved by the following technical solutions: a cylindrical spring verticality detection device, including a machine base, a linear guide mechanism, a detection seat, a positioning sleeve and a detection and control system composed of an alarm indicating device. The seat is connected with the linear guide rail mechanism and the positioning sleeve respectively, and the detection seat is connected with the linear guide rail mechanism, and the inner hole of the cylindrical detection seat with the same maximum physical outer diameter as the cylindrical spring to be tested is set on the detection seat, and the inner hole of the cylindrical detection seat is set on the positioning sleeve. A positioning hole with the same diameter as the inner hole of the detection seat, the detection seat and the positioning sleeve are respectively electrically connected to the inspection and control system, the positioning sleeve is located under the detection seat and is insulated from the machine base, and the detection seat is relatively positioned by a linear guide rail mechanism. The sleeve moves linearly up and down, and the central axes of the inner hole of the detection seat and the positioning hole on the positioning sleeve always coincide and are perpendicular to the horizontal plane.

Preferably, a magnet is also included, and the magnet is installed in the positioning sleeve and located below the positioning hole.

Preferably, a cylinder is also included, and the power output end of the cylinder is connected with the detection seat.

Preferably, the inspection and control system further includes a PLC controller, and the PLC controller is electrically connected to the cylinder and the alarm indicating device respectively.

Preferably, the inspection system further includes a display, and the display is electrically connected to the PLC controller.

Preferably, the linear guide mechanism is composed of a linear guide and a slider, the linear guide is connected to the base, the slider is respectively connected to the linear guide and the detection seat, and moves linearly up and down relative to the linear guide.

Preferably, the alarm indication device is an audible alarm.

Preferably, the alarm indicating device is an alarm indicator light.

Compared with the prior art, the beneficial effect of the utility model is: since the cylindrical detection seat inner hole with the same maximum physical outer diameter as the cylindrical spring to be tested is set on the detection seat, the diameter of the inner hole of the detection seat is set on the positioning sleeve. The same positioning hole, and the central axis of the inner hole of the detection seat and the positioning hole on the positioning sleeve are always coincident, through the conduction or disconnection state of the circuit between the positioning sleeve, the detection seat, and the inspection and control system and the sensitivity of the electrical signal, that is It can conveniently detect the verticality of the cylindrical spring to be tested, and the detection result is accurate and reliable. The detection process is simple and the detection efficiency is high. It is not only convenient for sampling detection, but also convenient for batch detection. Check labor costs.

Description of drawings

Fig. 1 is a structural diagram of a cylindrical spring verticality detection device of the present invention.

Fig. 2 is a front view of the detection seat in Fig. 1 .

Fig. 3 is a cross-sectional view along A-A in Fig. 2 .

Fig. 4 is the detection schematic diagram of the present invention (when the cylindrical spring to be tested is qualified).

Fig. 5 is a detection principle diagram of the present invention (when the cylinder spring to be tested is unqualified).

Parts marked in the picture: 1-machine base, 2-rib plate, 3-support plate, 4-linear guide rail, 5-slider, 6-cylinder mounting seat, 7-cylinder, 8-detection seat, 9-wire, 10-inspection and control system, 11-cylindrical spring to be tested, 12-magnet, 13-positioning sleeve, 14-insulation sleeve, 80-inner hole of detection seat.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

A cylindrical spring verticality detection device as shown in Figure 1 mainly includes a machine base 1, a linear guide mechanism, a cylinder 7, a detection seat 8, a positioning sleeve 13, an insulating sleeve 14 and a detection and control system 10 composed of an alarm indicating device, The linear guide mechanism is composed of a linear guide 4 and a slider 5 , and the slider 5 is connected with the linear guide 4 and the detection seat 8 respectively, and moves linearly up and down relative to the linear guide 4 . The supporting plate 3 is fixedly connected on the base 1, the cylinder mounting seat 6 is fixedly connected at the top of the supporting plate 3, the rib plate 2 is fixedly connected on the left side of the supporting plate 3, and the linear guide rail 4 is fixedly connected on the right side of the supporting plate 3. As shown in FIG. 2 and FIG. 3 , the detection seat 8 is L-shaped, and a cylindrical detection seat inner hole 80 having the same maximum physical outer diameter as the cylindrical spring 11 to be tested is provided at its horizontal end. The cylinder 7 is fixedly connected with the cylinder mounting seat 6, and the power output end of the cylinder 7 forms a threaded flexible connection with the vertical end of the detection seat 8. The rib plate 2 is in the shape of a trapezoid, and its top and bottom ends are fixedly connected with the cylinder mounting seat 6 and the machine base 1 respectively. The mechanical rigidity of the support plate 3 and the cylinder mounting seat 6 can be enhanced by the rib plate 2, so as to avoid the deviation of the vertical linear motion of the detection seat 8 due to deformation and bending during the detection process, and ensure the accuracy and reliability of the detection results. The positioning sleeve 13 is located below the detection seat 8 and is fixedly connected with the base 1. A cylindrical groove is provided on the base 1, and an insulating sleeve 14 is fixedly installed in the groove. An insulating connection is formed between the bases 1, and a positioning hole with the same diameter as the inner hole 80 of the detection seat is opened on the positioning sleeve 13. The detection base 8 can move up and down linearly relative to the positioning sleeve 13 through a linear guide rail mechanism. Among them, the central axes of the inner hole 80 of the detection seat and the positioning hole on the positioning sleeve 13 are always coincident and perpendicular to the horizontal plane. The detection seat 8 and the positioning sleeve 13 are respectively electrically connected to the alarm indicating device in the inspection and control system 10 through the wire 9, and the described alarm indicating device can use a sound alarm or an alarm indicator light, such as red, yellow and green Alarm indicator light.

As shown in FIG. 4 or FIG. 5 , before testing the verticality of the cylindrical spring 11 to be tested, ensure that the circuit between the positioning sleeve 13 , the testing seat 8 and the testing and control system 10 is in an open circuit state. Then, install the cylindrical spring 11 to be tested with the end face ground into the positioning hole on the positioning sleeve 13, and start the cylinder 7 to drive the detection seat 8 to move downward in a straight line relative to the positioning sleeve 13. During the movement, if the detection and control system 10 does not Send a sound signal through the sound alarm, or do not send a photoelectric signal through the alarm indicator light, it means that the connection circuit between the positioning sleeve 13, the detection seat 8, and the inspection and control system 10 is not conducting. The inner hole 80 of the detection seat is not in contact with the cylindrical spring 11 to be tested, and the verticality of the cylindrical spring 11 to be tested is qualified, as shown in FIG. 4 . On the contrary, if the inspection and control system 10 sends a sound signal, or sends a photoelectric alarm signal, it means that the connection circuit between the positioning sleeve 13, the detection seat 8, and the inspection and control system 10 is turned on. Therefore, it can be judged that the detection seat on the detection seat 8 If there is contact between the inner hole 80 and the cylindrical spring 11 to be tested, the verticality of the cylindrical spring 11 to be tested is unqualified, as shown in FIG. 5 .

In order to realize the automatic detection of the verticality of the cylindrical spring 11 to be measured with the end face ground flat, a PLC controller and a display can be set on the basis of the detection and control system 10 in the above-mentioned detection device, and the PLC controller can be connected with the cylinder 7, The alarm indicating device and the display are electrically connected. The movement stroke of the cylinder 7 can be precisely controlled through the PLC controller, and an alarm signal and a qualified or unqualified judgment result can be output. If the detection seat inner hole 80 on the detection seat 8 is not in contact with the cylindrical spring 11 to be tested, that is, when the verticality of the cylindrical spring 11 to be tested is qualified, the display shows "OK" sign, and the alarm indicating device does not send an alarm signal. However, if there is contact between the detection seat inner hole 80 on the detection seat 8 and the cylindrical spring 11 to be tested, that is, when the verticality of the cylindrical spring 11 to be tested is unqualified, the display will display the "NG" mark, and the alarm indicating device will send out Corresponding alarm signal, so that the detection personnel can deal with it accordingly. Through the above-mentioned automatic detection system, the operator manpower on the detection site can be reduced, the detection cost can be saved, the detection efficiency can be improved, and the detection result can be guaranteed to be accurate and reliable.

When carrying out the verticality detection of the cylindrical spring 11 to be tested with the end surface ground flat, especially during batch testing, in order to facilitate the installation of the cylindrical spring 11 to be tested in the positioning hole on the positioning sleeve 13, it can be installed in the positioning sleeve 13. Magnet 12, and make magnet 12 be positioned at below the positioning hole. When the cylindrical spring 11 to be tested is installed, it is only necessary to put the ground end surface of the cylindrical spring 11 to be tested into the positioning hole, and the ground surface of the cylindrical spring 11 to be tested will be attracted by the magnet 12 and be tightly attached to each other; after the detection, The cylindrical spring 11 to be tested can be easily pulled out, and then put into the next cylindrical spring 11 to be tested, which is conducive to improving the detection efficiency; and the adsorption force of the magnet 12 can also ensure that the cylindrical spring 11 to be tested and the positioning sleeve 13 are in the detection process. There will be no detachment in the middle, and the mutual vertical state between the two is guaranteed to ensure the smooth progress of the detection process and the accuracy and reliability of the detection results.

The above is only a preferred embodiment of the utility model, and is not intended to limit the utility model. It should be noted that the implementation of the utility model is not limited to using the cylinder 7 to provide power, for example, it can also be directly driven by manpower. Detect the up and down linear motion of the seat 8, and judge the detection result through the alarm signal sent by the alarm indicating device. Although the verticality detection of the cylindrical spring 11 to be tested can be carried out, the manpower consumption is large, the operation efficiency is low, and it cannot be automated. detection. Therefore, any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims (8)

1. a cylindrical spring verticality detection device is characterized in that: comprise support (1), linear guide rail mechanism, detection seat (8) and positioning cover (13) and the inspection and control system (10) that is made up of alarm indicating device, The base (1) is respectively connected with the linear guide rail mechanism and the positioning sleeve (13), and the detection seat (8) is connected with the linear guide rail mechanism. The inner hole (80) of the cylindrical detection seat with the same outer diameter of the entity is set on the positioning sleeve (13) and the positioning hole with the same diameter as the inner hole of the detection seat (80) is opened. The detection seat (8), the positioning sleeve (13) They are respectively electrically connected to the inspection and control system (10), the positioning sleeve (13) is located below the detection seat (8) and is insulated from the machine base (1), and the detection base (8) is relatively to the positioning sleeve ( 13) Perform linear motion up and down, the central axes of the inner hole (80) of the detection seat and the positioning hole on the positioning sleeve (13) always coincide and are perpendicular to the horizontal plane. 2. A cylindrical spring verticality detection device according to claim 1, characterized in that it further comprises a magnet (12), and the magnet (12) is installed in the positioning sleeve (13) and located below the positioning hole. 3. A cylindrical spring verticality detection device according to claim 1 or 2, characterized in that it further comprises a cylinder (7), and the power output end of the cylinder (7) is connected to the detection seat (8). 4. a kind of cylindrical spring verticality detection device according to claim 3, is characterized in that: described inspection and control system (10) also comprises PLC controller, and described PLC controller is respectively connected with cylinder (7), alarm indicating device electrical connection. 5. A cylindrical spring verticality detection device according to claim 4, characterized in that: the inspection and control system (10) further comprises a display, and the display is electrically connected to a PLC controller. 6. A kind of cylindrical spring verticality detection device according to claim 1 or 2, characterized in that: said linear guide rail mechanism is made up of linear guide rail (4) and slide block (5), and said linear guide rail (4) It is connected with the base (1), and the slider (5) is respectively connected with the linear guide rail (4) and the detection seat (8), and moves linearly up and down relative to the linear guide rail (4). 7. A cylindrical spring verticality detection device according to claim 1 or 2, characterized in that: the alarm indicating device is an audible alarm. 8. A cylindrical spring verticality detection device according to claim 1 or 2, characterized in that: the alarm indicating device is an alarm indicator light.