A double guide rod positioning mechanism with nut detection function

Abstract

The present invention discloses a double guide rod positioning mechanism with a nut detection function, comprising a first positioning device and a second positioning device; the first positioning device comprises a first mounting seat, a first driving mechanism is installed on the side of the first mounting seat, the upper end of the first driving mechanism is transmission-connected with a first detection seat, a first connecting block is installed on the side of the first detection seat, a pin seat is installed on the upper part of the first connecting block, and a positioning pin is installed on the pin seat. A guiding mechanism is arranged between the first positioning device and the second positioning device. The present invention realizes automatic detection of nuts, improves detection efficiency, reduces labor intensity, has simple detection, fast response speed, stable working performance, strong reliability, and increases the economic benefits of the enterprise.

Description

Technical Field

[0001] The invention relates to the technical field of automobile body-in-white welding detection, and in particular to a double-guide rod positioning mechanism with a nut detection function. Background Art

[0002] The car body is made up of hundreds of thin sheet stamping parts that are assembled by welding, riveting or mechanical connection. During the welding process, the car body may have problems such as missing nuts and wrong parts, which will make it impossible to install subsequent parts, causing the assembly to be scrapped, affecting product quality and subsequent processes, and the waste caused increases the cost and burden of the enterprise. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention provides a double guide rod positioning mechanism with a nut detection function, thereby solving the defects of the above-mentioned technology.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A double guide rod positioning mechanism with a nut detection function, characterized in that it comprises a first positioning device and a second positioning device;

[0006] The first positioning device comprises a first mounting seat, a first driving mechanism is mounted on the side of the first mounting seat, the upper end of the first driving mechanism is drivingly connected to the first detection seat, a first connecting block is mounted on the side of the first detection seat, a pin seat is mounted on the upper part of the first connecting block, and a positioning pin is mounted on the pin seat;

[0007] The second positioning device comprises a second driving mechanism, the upper end of the second driving mechanism is transmission-connected with a second transmission block, a side of the second transmission block is installed with a vertical motion block, a side of the upper end of the vertical motion block facing the first detection seat is installed with a second detection seat, and a metal sensor is installed on the second detection seat through an elastic connecting piece; the metal sensor is connected to a controller;

[0008] A guiding mechanism is arranged between the first positioning device and the second positioning device.

[0009] According to an optimized solution, the first driving mechanism comprises a first double-guide-rod cylinder mounted on a first mounting seat, and two piston guide rods of the first double-guide-rod cylinder are connected to the first detection seat.

[0010] According to an optimized solution, the second driving mechanism comprises a second double-guide-rod cylinder, and two piston guide rods of the second double-guide-rod cylinder are connected to the second transmission block.

[0011] In the optimized solution, the controller adopts an industrial computer.

[0012] According to an optimized solution, the guide mechanism comprises a guide seat fixedly mounted on the side of the first mounting seat, and a U-shaped guide plate is arranged on the upper end surface of the guide seat; the second detection seat moves up and down in the space inside the U-shaped guide plate.

[0013] According to an optimized solution, the elastic connecting member is a spring or an elastic rod installed on the upper end of the second detection seat.

[0014] Due to the adoption of the above technology, compared with the prior art, the beneficial effects of the present invention are:

[0015] The present invention uses two double-guide rod cylinders for driving. During detection, the first double-guide rod cylinder pushes the positioning pin and aligns the positioning pin with the preset position of the workpiece for positioning. The second double-guide rod cylinder drives the second detection block to rise, and the metal sensor on the second detection block is aligned with the part hole position. When a nut is not installed in the part hole, the metal sensor will detect that the nut is not installed, and the metal sensor will not send a detection signal. At this time, the industrial computer sends a signal. If there is a nut in the part hole, the metal sensor will send a detection signal, and it can be known that the nut has been installed and displayed on the industrial computer.

[0016] The above operation realizes automatic detection of nuts, improves detection efficiency, reduces labor intensity, makes detection simple, responds quickly, has stable working performance, and has high reliability, thereby increasing the economic benefits of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a schematic diagram of the three-dimensional structure of an embodiment of the present invention. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] like Figure 1 As shown, a double guide rod positioning mechanism with nut detection function includes a first positioning device and a second positioning device. The two parts cooperate with each other and are installed on the same rack or two adjacent racks for detection. The specific installation position of this embodiment can be determined according to the actual situation in the workshop.

[0020] The first positioning device comprises a first mounting seat 6 installed at a selected position in the workshop, a first double-guide rod cylinder 5 is installed on the side of the first mounting seat 6, and two piston guide rods of the first double-guide rod cylinder 5 are connected to the first detection seat 4. A first connecting block 3 is installed on the side of the first detection seat 4, a pin seat 2 is installed on the upper part of the first connecting block 3, and a positioning pin 1 is installed on the pin seat 2.

[0021] The second positioning device comprises a second double-guide rod cylinder 8, and two piston guide rods of the second double-guide rod cylinder 8 are connected to a second transmission block 9. A vertical motion block 10 is installed on the side of the second transmission block 9, and a second detection seat 11 is installed on the side of the upper end of the vertical motion block 10 facing the first detection seat, and a metal sensor is installed on the second detection seat 11 through a spring or an elastic rod.

[0022] The metal sensor is connected to a controller, and two double-guide cylinders are also connected to the controller. The controller uses an industrial computer.

[0023] A guide mechanism is provided between the first positioning device and the second positioning device. The guide mechanism includes a guide seat fixedly mounted on the side of the first mounting seat, and a U-shaped guide plate 12 is provided on the upper end surface of the guide seat. The second detection seat 11 moves up and down in the space inside the U-shaped guide plate 12.

[0024] At the beginning of the inspection, two double-guide cylinders are installed in the appropriate position. The first double-guide cylinder pushes the positioning pin and aligns the positioning pin with the preset position of the workpiece for positioning. The second double-guide cylinder drives the second detection block to rise, and the metal sensor on the second detection block is aligned with the part hole position. When there is no nut installed in the part hole, the metal sensor will detect that the nut is not installed, and the metal sensor will not send a detection signal. At this time, the industrial computer sends a signal. If there is a nut in the part hole, the metal sensor will send a detection signal, and it can be known that the nut has been installed and displayed on the industrial computer.

[0025] The above operation realizes automatic detection of nuts, improves detection efficiency, reduces labor intensity, makes detection simple, responds quickly, has stable working performance, and has high reliability, thereby increasing the economic benefits of the enterprise.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A double guide rod positioning mechanism with nut detection function, characterized in that: comprising a first positioning device and a second positioning device; The first positioning device comprises a first mounting seat, a first driving mechanism is mounted on the side of the first mounting seat, the upper end of the first driving mechanism is drivingly connected to the first detection seat, a first connecting block is mounted on the side of the first detection seat, a pin seat is mounted on the upper part of the first connecting block, and a positioning pin is mounted on the pin seat; The second positioning device comprises a second driving mechanism, the upper end of the second driving mechanism is transmission-connected with a second transmission block, a side of the second transmission block is installed with a vertical motion block, a side of the upper end of the vertical motion block facing the first detection seat is installed with a second detection seat, and a metal sensor is installed on the second detection seat through an elastic connecting piece; the metal sensor is connected to a controller; A guiding mechanism is provided between the first positioning device and the second positioning device. The first driving mechanism comprises a first double-guide rod cylinder mounted on a first mounting seat, wherein two piston guide rods of the first double-guide rod cylinder are connected to the first detection seat. The second driving mechanism comprises a second double-guide rod cylinder, wherein two piston guide rods of the second double-guide rod cylinder are connected to the second transmission block. The guide mechanism comprises a guide seat fixedly mounted on the side of the first mounting seat, and a U-shaped guide plate is arranged on the upper end surface of the guide seat; the second detection seat moves up and down in the space inside the U-shaped guide plate.

2. A double guide rod positioning mechanism with nut detection function according to claim 1, characterized in that: The controller adopts an industrial computer.

3. A double guide rod positioning mechanism with nut detection function according to claim 1, characterized in that: The elastic connecting member is a spring or an elastic rod installed on the upper end of the second detection seat.

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