Screw detection device

Abstract

The utility model provides a screw detection device which comprises an installation support, a micro-motion detection switch is fixedly arranged at the front end of the installation support, a tension spring is installed on the micro-motion detection switch, the tension spring and a driving rod of the micro-motion detection switch are installed, and the tension spring is vertically arranged above a discharging channel. When the tension spring is in contact with a screw in the blanking channel, the displacement reaches a critical point to generate instantaneous action, so that a movable contact at the tail end of the driving rod is quickly connected or disconnected with a fixed contact in the micro-motion detection switch. The screw detection device provided by the utility model is low in manufacturing cost and simple and convenient in installation mode, can be installed above a blanking channel of processing equipment, carries out on-line monitoring on a screw, realizes detection on the tapping depth of the screw, and effectively ensures the stability of the processing quality of the screw.

Description

Technical Field

[0001] The utility model relates to the technical field of screw processing, in particular to a screw detection device. Background Technique

[0002] In the existing equipment for screw tapping processing, there is no simple online detection mechanism to detect whether the tapping depth of the screw reaches the set standard after the screw tapping processing is completed. In the blanking channel of the processing equipment, if the tapping depth on the screw does not reach the set standard, the screw head will protrude above the blanking channel. This situation may be an abnormal processing of the tapping depth of the equipment. If it cannot be monitored in time, it will easily lead to abnormalities in subsequent processing. Therefore, a simple detection mechanism needs to be set up to monitor it online. Content of the Utility Model

[0003] The purpose of the utility model is to provide a screw detection device to solve the technical problems in the background technique.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions:

[0005] A screw detection device includes a mounting bracket. A micro motion detection switch is fixedly arranged at the front end of the mounting bracket. A tension spring is installed on the micro motion detection switch. The tension spring is installed with the driving rod of the micro switch. The tension spring is vertically arranged above the blanking channel. When the displacement of the tension spring in contact with the screw in the blanking channel reaches the critical point, an instantaneous action is generated, so that the moving contact at the end of the driving rod is quickly connected or disconnected from the fixed contact in the micro motion detection switch.

[0006] The mounting bracket includes a support seat, a connecting rod and a fixing block. An adjusting block is arranged above the support seat. The connecting rod is detachably installed with the adjusting block. The fixing block is fixed at the front end of the connecting rod. The micro motion detection switch is installed below the fixing block.

[0007] The adjusting block is provided with a first mounting hole, which penetrates through its front and rear ends. The connecting rod is in the first mounting hole. A fixing hole is also arranged above the adjusting block. The fixing hole is communicated with the first mounting hole. A locking screw is threadedly installed in the fixing hole and contacts the connecting rod.

[0008] The tension spring is formed by one-time winding. From top to bottom, the tension spring is an installation ring, an elastic part, a connecting part and a contact ring. The contact ring is above the blanking channel. The elastic part is in a cylindrical spiral shape.

[0009] Compared with the prior art, a screw detection device provided by the utility model has low manufacturing cost and simple installation method. It can be installed above the blanking channel of the processing equipment to implement on-line monitoring of the screw. When a screw with abnormal processing is conveyed into the blanking channel and touches the tension spring, the micro switch is activated. The micro switch is connected to the alarm circuit of the machine tool, so that the machine can be stopped in time for confirmation, realizing the detection of the tapping depth of the screw and effectively ensuring the stability of the screw processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 : The three-dimensional structure diagram of the present application;

[0011] Figure 2 : The three-dimensional structure diagram of the tension spring;

[0012] Figure 3 : The schematic diagram of the installation and use state of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0013] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

[0014] Specific Embodiment 1: Please refer to Figures 1 to 3 , a screw detection device in this embodiment includes an installation bracket 1. A micro motion detection switch 5 is fixedly arranged at the front end of the installation bracket 1. The micro motion detection switch 5 can be signal-connected to the processing equipment. When an abnormality occurs, the equipment can issue an alarm and stop the operation in time. In this application, a tension spring 6 is installed on the micro motion detection switch 5. The tension spring 6 is installed with the driving rod 501 of the micro switch. The tension spring 6 is vertically arranged above the blanking channel 7. When the tension spring 6 contacts the screw in the blanking channel 7 and the displacement reaches the critical point, an instantaneous action is generated, so that the moving contact at the end of the driving rod 501 is quickly connected or disconnected from the fixed contact in the micro motion detection switch 5.

[0015] The installation bracket 1 includes a support seat 2, a connecting rod 3 and a fixing block 4. An adjusting block 201 is arranged above the support seat 2. The connecting rod 3 is detachably installed with the adjusting block 201. The fixing block 4 is fixed at the front end of the connecting rod 3. The micro motion detection switch 5 is installed below the fixing block 4. A first installation hole 201-2 is arranged on the adjusting block 201, and the first installation hole 201-2 penetrates through its front and rear ends. The connecting rod 3 is in the first installation hole 201-2. A fixing hole 201-1 is also arranged above the adjusting block 201. The fixing hole 201-1 communicates with the first installation hole 201-2. A locking screw 202 is threadedly installed in the fixing hole 201-1 and contacts the connecting rod 3. By adjusting the installation position of the connecting rod 3 on the adjusting block 201, the position of the micro motion detection switch 5 is adjusted, and then the position of the tension spring 6 in the blanking channel 7 is adjusted, so as to be applicable to the use of different models of processing equipment.

[0016] The tension spring 6 is formed by one-time winding. From top to bottom, the tension spring 6 includes an installation ring 601, an elastic part 602, a connecting part 603, and a contact ring 604. The contact ring 604 is above the blanking channel 7, and the elastic part is in a cylindrical spiral shape.

[0017] Install this application at the position of the blanking channel 7 of the equipment. There is a certain distance between the contact ring 604 of the tension spring 6 and the blanking channel 7. When a processed abnormal screw passes through the blanking channel 7, it will contact the contact ring 604. As the screw moves forward continuously, the displacement of the tension spring 6 is pulled, so that the moving contact on the driving rod 501 contacts the fixed contact. After the equipment receives the signal from the micro-motion detection switch 5, it issues an alarm and stops the operation at the same time. It can be restarted for processing after the operator checks.

[0018] Compared with the prior art, a screw detection device provided by the present utility model has low manufacturing cost and simple installation method. It can be installed above the blanking channel of the processing equipment to implement on-line monitoring of the screw. When a processed abnormal screw is conveyed into the blanking channel and touches the tension spring, the micro-motion switch is activated. The micro-motion switch is connected to the alarm circuit of the machine tool, and the machine can be stopped in time for confirmation, realizing the detection of the tapping depth of the screw and effectively ensuring the stability of the screw processing quality.

[0019] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the foregoing exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the foregoing description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0020] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A detection device for a screw, characterized in that: It includes a mounting bracket, with a micro motion detection switch fixedly installed at the front end of the mounting bracket. A tension spring is installed on the micro motion detection switch, and the tension spring is installed with the drive rod of the micro motion switch. The tension spring is vertically arranged above the blanking channel. When the displacement of the tension spring in contact with the screw in the blanking channel reaches the critical point, an instantaneous action is generated, causing the moving contact at the end of the drive rod to quickly connect or disconnect from the fixed contact in the micro motion detection switch.

2. The detection device for a screw according to claim 1, wherein: The mounting bracket includes a support seat, a connecting rod, and a fixing block. An adjusting block is provided above the support seat. The connecting rod is detachably installed with the adjusting block. The fixing block is fixed at the front end of the connecting rod, and the micro motion detection switch is installed below the fixing block.

3. The detecting device for a screw according to claim 2, wherein: The adjusting block is provided with a first mounting hole that penetrates through its front and rear ends. The connecting rod is within the first mounting hole. A fixing hole is also provided above the adjusting block, and the fixing hole communicates with the first mounting hole. A locking screw is threadedly installed in the fixing hole and contacts the connecting rod.

4. The detection device for a screw according to claim 3, characterized in that: The tension spring is formed by one-time winding. From top to bottom, the tension spring is successively an installation ring, an elastic part, a connecting part, and a contact ring. The contact ring is above the blanking channel, and the elastic part is in a cylindrical spiral shape.

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