Spot welding guide rail support leak-proof nut welding positioning mechanism

Abstract

The utility model provides a kind of spot welding guide rail support leak-proof nut welding positioning mechanism, including positioning assembly, moving assembly, connecting plate, inductor, locating peg, PLC controller;Connecting plate is provided with the through hole being communicated with cavity at both ends of cavity, part of locating peg is in and through hole, the outer wall of locating peg is fixed with baffle ring in cavity, spring is arranged in the cavity of locating peg;Locating peg is away from the first extension of inductor one end and extends in axial direction, the second extension of first extension extends in axial direction, and second extension extends to outside through hole;Nut is installed at the via of guide rail support, the inner diameter of nut of guide rail support is greater than the size of second extension, the inner diameter of nut of guide rail support is less than the size of first extension, and the size of guide rail support via is greater than the size of first extension.The locating peg of the present application can detect whether guide rail support has nut while positioning guide rail support, avoid production of defective product, and improve yield.

Description

Technical Field

[0001] This application relates to the fields of guide rail bracket positioning and welding technology, and in particular to a spot welding guide rail bracket anti-leakage nut welding positioning mechanism. Background Technology

[0002] Currently, guide rail assembly welding requires welding brackets, using the nut holes on the brackets for positioning. However, when welding the bracket nuts, it is often found that the nuts are not welded properly, which easily leads to defective parts being shipped out.

[0003] Existing positioning mechanisms can only position the bracket, but cannot detect whether there is a nut during positioning, which can easily lead to problems such as missing nuts during welding.

[0004] Therefore, we propose a spot-welded guide rail bracket anti-leakage nut welding positioning mechanism. Utility Model Content

[0005] In response to the shortcomings of the existing production technology, the applicant provides a spot welding guide rail bracket anti-leakage nut welding positioning mechanism. This mechanism, in addition to positioning the guide rail bracket, can also detect whether the guide rail bracket has a nut, thereby avoiding the production of defective products and improving the yield rate.

[0006] The technical solution adopted in this application is as follows:

[0007] A spot welding guide rail bracket anti-leakage nut welding positioning mechanism includes:

[0008] The positioning components, including a front positioning frame and left and right positioning frames, are used to position the guide rail bracket.

[0009] The movable component is positioned on one side of the positioning component;

[0010] A connecting plate is fixedly connected to the output end of the moving component and moves to the positioning component via the moving component. A notch is provided on the connecting plate.

[0011] The sensor is embedded in one side of the notch in the connecting plate;

[0012] Positioning pins;

[0013] The PLC controller is electrically connected to the sensor;

[0014] The connecting plate has a cavity on the other side of the notch, and the connecting plate has through holes at both ends of the cavity that communicate with the cavity. A part of the positioning pin is in the through hole, and a retaining ring is fixed on the outer wall of the positioning pin in the cavity. A spring is fitted inside the positioning pin in the cavity, and the spring is located between the retaining ring and the sensor.

[0015] The positioning pin has a first extension extending axially from the end away from the sensor, and the first extension extends axially to a second extension, which extends out of the through hole.

[0016] A nut is installed at the through hole of the guide rail bracket. The inner diameter of the nut of the guide rail bracket is larger than the size of the second extension, the inner diameter of the nut of the guide rail bracket is smaller than the size of the first extension, and the size of the through hole of the guide rail bracket is larger than the size of the first extension.

[0017] Its further features are:

[0018] The positioning component also includes a support frame, which is fixedly connected to the front positioning frame and supports the guide rail bracket.

[0019] The spring is in a compressed state, with one end of the spring fixedly connected to the retaining ring and the other end of the spring fixedly connected to the inner wall of the cavity.

[0020] The axis of the sensor coincides with the axis of the positioning pin.

[0021] The positioning pin extends into the notch outside the through hole at the end closest to the sensor.

[0022] The positioning component and the moving component are fixed on the base.

[0023] The moving component is a cylinder.

[0024] The beneficial effects of this application are as follows:

[0025] This application features a compact and reasonable structure, and is easy to operate. The front positioning frame positions the front end of the guide rail bracket, while the left and right positioning frames position the left and right sides. If there is a nut on the guide rail bracket, the second extension of the positioning pin inserts into the nut, blocking the first extension. As the moving component drives the connecting plate to continue moving, the positioning pin moves towards the sensor end within the connecting plate. The positioning pin contacts the sensor, which sends a signal to the PLC controller. The PLC controller determines that the guide rail bracket is qualified and initiates the welding process. Simultaneously positioning the guide rail bracket, the positioning pin can detect the presence of a nut, preventing defective products and improving the yield rate.

[0026] In addition, this application also has the following advantages:

[0027] (1) If there is no nut on the guide rail bracket, the first and second extensions of the positioning pin will enter the through hole of the guide rail bracket. The positioning pin will not contact the sensor, the sensor will not send a signal to the PLC controller, the PLC controller will determine that the guide rail bracket is unqualified and will not start the welding process. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of a positioning mechanism for this application.

[0029] Figure 2This is a schematic diagram of the positioning component of this application.

[0030] Figure 3 This is a schematic diagram of the connecting plate, positioning pin, sensor, etc. in this application.

[0031] Figure 4 for Figure 3 Schematic diagram of the AA section.

[0032] Figure 5 This is a schematic diagram of the positioning pin in this application.

[0033] Figure 6 This is a schematic diagram of the two positioning mechanisms and the guide rail bracket of this application.

[0034] The components include: 1. Guide rail bracket; 2. Positioning assembly; 3. Moving assembly; 4. Connecting plate; 5. Positioning pin; 6. Sensor; 7. Spring; 8. Base;

[0035] 201. Support frame; 202. Front positioning frame; 203. Left and right positioning frames;

[0036] 401. Through hole; 402. Cavity; 403. Notch;

[0037] 501. First extension; 502. Second extension; 503. Retaining ring. Detailed Implementation

[0038] The specific embodiments of this application are described below with reference to the accompanying drawings.

[0039] like Figures 1-5 As shown, a spot welding guide rail bracket anti-leakage nut welding positioning mechanism includes a positioning component 2, a moving component 3, a connecting plate 4, a positioning pin 5, a sensor 6, a spring 7, a base 8, and a PLC controller; the PLC controller is electrically connected to the sensor 6; the positioning component 2 and the moving component 3 are fixed on the base 8.

[0040] The moving component 3 is located on one side of the positioning component 2.

[0041] The positioning component 2 includes a support frame 201, a front positioning frame 202, and left and right positioning frames 203. The left and right positioning frames 203 are fixedly connected to the front positioning frame 202, and the support frame 201 is fixedly connected to the front positioning frame 202. The support frame 201 supports the guide rail bracket 1, the front positioning frame 202 positions the front end of the guide rail bracket 1, and the left and right positioning frames 203 position the left and right sides of the guide rail bracket 1.

[0042] In one embodiment, the moving component 3 may be a cylinder, or other possible structures.

[0043] The connecting plate 4 is fixedly connected to the output end of the moving component 3. The connecting plate 4 is provided with a notch 403. A sensor 6 is embedded in one side of the connecting plate 4 with the notch 403. A cavity 402 is provided on the other side of the connecting plate 4 with the notch 403. Through holes 401 communicating with the cavity 402 are provided at both ends of the connecting plate 4 with the cavity 402. A part of the positioning pin 5 is located in the cavity 402 and the through hole 401. A retaining ring 503 is fixed to the outer wall of the positioning pin 5. The retaining ring 503 is located in the cavity 402. A spring 7 is sleeved inside the cavity 402 of the positioning pin 5. The spring 7 is located at the end close to the sensor 6. One end of the spring 7 is fixedly connected to the inner wall of the cavity 402. The other end of the spring 7 is fixedly connected to the retaining ring 503. The spring 7 is located between the retaining ring 503 and the sensor 6.

[0044] The axis of sensor 6 coincides with the axis of positioning pin 5.

[0045] When the spring 7 is in a compressed state, under the elastic force of the spring 7, the retaining ring 503 contacts the inner wall of the cavity 402. At this time, the end of the positioning pin 5 near the sensor 6 extends out of the through hole 401, that is, the end of the positioning pin 5 near the sensor 6 extends into the notch 403. The end of the positioning pin 5 away from the sensor 6 extends axially with a first extension 501, and the first extension 501 extends axially with a second extension 502, which extends out of the through hole 401.

[0046] In one embodiment, such as Figure 6 As shown, there are two positioning mechanisms, spaced apart. The two mechanisms have essentially the same structure; one positioning mechanism positions one guide rail bracket 1, and the other positions another guide rail bracket 1. One guide rail bracket 1 is the upper bracket, and the other is the lower bracket. The size of the first extension 501 is smaller than the size of the positioning pin 5. Both positioning mechanisms can detect whether a nut is missing from the guide rail bracket 1.

[0047] The inner diameter of the nut in the guide rail bracket 1 is larger than the size of the second extension 502, and the inner diameter of the nut in the guide rail bracket 1 is smaller than the size of the first extension 501. If the guide rail bracket 1 is missing a nut, the guide rail bracket 1 has a through hole at the nut location, and the size of the through hole is larger than the size of the first extension 501.

[0048] In practical use, the guide rail bracket 1 is placed on the positioning component 2. The support frame 201 supports the guide rail bracket 1, the front end of the guide rail bracket 1 is positioned by the front positioning frame 202, and the left and right sides of the guide rail bracket 1 are positioned by the left and right positioning frames 203. The moving component 3 drives the connecting plate 4 to move, and the connecting plate 4 drives the positioning pin 5 to move the guide rail bracket 1. If there is no nut on the guide rail bracket 1, the first extension 501 and the second extension 502 of the positioning pin 5 will enter the through hole of the guide rail bracket 1. The positioning pin 5 will not contact the sensor 6, the sensor 6 will not send a signal to the PLC controller, the PLC controller will determine that the guide rail bracket 1 is unqualified, and will not start the welding process.

[0049] If there is a nut on the guide rail bracket 1, the second extension 502 of the positioning pin 5 passes through the nut of the guide rail bracket 1, and the nut blocks the first extension 501. As the moving component 3 drives the connecting plate 4 to continue moving, the positioning pin 5 moves towards one end of the sensor 6 in the connecting plate 4. The positioning pin 5 contacts the sensor 6, and the sensor 6 sends a signal to the PLC controller. The PLC controller determines that the guide rail bracket 1 is qualified and starts the welding process.

[0050] The positioning pin 5 can not only position the guide rail bracket 1, but also detect whether there is a nut on the guide rail bracket 1, thus avoiding the production of defective products and improving the yield rate.

[0051] The above description is an explanation of this application and not a limitation thereof. The scope of this application is defined by the claims. Within the scope of protection of this application, any form of modification may be made.

Claims

1. A spot-welded guide rail bracket anti-leakage nut welding positioning mechanism, characterized in that, include: The positioning component (2) includes a front positioning frame (202) and left and right positioning frames (203) for positioning the guide rail bracket (1); The moving component (3) is located on one side of the positioning component (2); The connecting plate (4) is fixedly connected to the output end of the moving component (3) and moves to the positioning component (2) through the moving component (3). A notch (403) is provided on the connecting plate (4). The sensor (6) is embedded in one side of the notch (403) of the connecting plate (4); Positioning pin (5); The PLC controller is electrically connected to the sensor (6); Among them, the connecting plate (4) has a cavity (402) on the other side of the notch (403), and the connecting plate (4) has through holes (401) communicating with the cavity (402) at both ends. A part of the positioning pin (5) is in the through hole (401). The outer wall of the positioning pin (5) is fixed with a retaining ring (503) in the cavity (402). The positioning pin (5) is fitted with a spring (7) inside the cavity (402). The spring (7) is located between the retaining ring (503) and the sensor (6). The positioning pin (5) extends axially at one end away from the sensor (6) with a first extension (501), and the first extension (501) extends axially with a second extension (502), and the second extension (502) extends out of the through hole (401). A nut is installed at the through hole of the guide rail bracket (1). The inner diameter of the nut of the guide rail bracket (1) is larger than the size of the second extension (502). The inner diameter of the nut of the guide rail bracket (1) is smaller than the size of the first extension (501). The size of the through hole of the guide rail bracket (1) is larger than the size of the first extension (501).

2. The spot welding guide rail bracket anti-leakage nut welding positioning mechanism as described in claim 1, characterized in that: The positioning component (2) also includes a support frame (201), which is fixedly connected to the front positioning frame (202) and supports the guide rail bracket (1) through the support frame (201).

3. The anti-leakage nut welding positioning mechanism for spot welding guide rail bracket as described in claim 1, characterized in that: The spring (7) is in a compressed state. One end of the spring (7) is fixedly connected to the retaining ring (503), and the other end of the spring (7) is fixedly connected to the inner wall of the cavity (402).

4. The anti-leakage nut welding positioning mechanism for spot welding guide rail bracket as described in claim 3, characterized in that: The axis of the sensor (6) coincides with the axis of the positioning pin (5).

5. The spot welding guide rail bracket anti-leakage nut welding positioning mechanism as described in claim 4, characterized in that: The positioning pin (5) extends into the notch (403) outside the through hole (401) at one end near the sensor (6).

6. The anti-leakage nut welding positioning mechanism for spot welding guide rail bracket as described in claim 1, characterized in that: The positioning component (2) and the moving component (3) are fixed on the base (8).

7. The anti-leakage nut welding positioning mechanism for spot welding guide rail bracket as described in claim 1, characterized in that: The moving component (3) is a cylinder.

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