Welding fixing device for bracket welding nut

Abstract

The invention belongs to the technical field of automobile part welding machining equipment, and particularly relates to a welding fixing device for a support welding nut, the welding fixing device comprises a welding frame and a support plate, and a positioning fixing mechanism is fixedly mounted at the top of the welding frame; the positioning and fixing mechanism comprises a positioning block, a positioning assembly is fixedly installed in an inner cavity of the positioning block and comprises a micro motor, the bottom of the micro motor is fixedly connected with the inner surface of the positioning block, a rotating shaft is fixedly installed at the output end of the micro motor through a speed reducer, and a main gear is fixedly installed on the outer surface of the rotating shaft. According to the welding fixing device for the support welding nut, a positioning block is placed in the corresponding position of a welding frame according to the position of a support plate clamping groove, then a micro motor is started through a controller, the micro motor drives a main gear to rotate through a rotating shaft, and the main gear drives an inner threaded rod to rotate through a tooth block; and the internal threaded rod is matched with the limiting frame to drive the external threaded rod to move.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts welding processing equipment, in particular to a welding fixing device for a bracket welding nut. Background Art

[0002] Welding, also known as fusion, is a manufacturing process and technology that uses heating, high temperature or high pressure to join metals or other thermoplastic materials such as plastics. In the field of automobile manufacturing, welding nuts are key connecting components and are widely used in various parts of automobiles, among which welding nuts on automobile brackets are particularly important. Automobile brackets need to bear the weight of different components and withstand various dynamic loads during vehicle driving. The performance of welding nuts is directly related to the stability and reliability of the connection between the bracket and other components.

[0003] At present, there are many welding points on the bracket of new energy vehicles, among which the welding of welding nuts accounts for a relatively large proportion. In actual operation, there will be the following problems:

[0004] 1. The welding of welding nuts on some new energy vehicle brackets is done by tightening the welding nuts with corresponding bolts and then welding. The welding efficiency is slow, and the bolts are difficult to remove after welding deformation. At the same time, the welding nuts are not easy to place after being locked, and the welding is difficult;

[0005] 2. During the welding process, the car bracket is easy to slide on the welding frame, causing the welding gun to be unable to align with the nut for welding. Summary of the invention

[0006] In order to overcome the above-mentioned defects of the prior art, the inventors conducted in-depth research and completed the present invention after paying a lot of creative work.

[0007] Specifically, the technical problem to be solved by the present invention is to provide a welding fixing device for welding nuts on a bracket, so as to solve the problem that when welding nuts on a current automobile bracket, a bolt is inserted into a predetermined hole position of the bracket, and the nut is fixed on the bolt before welding. This process is time-consuming, has low welding efficiency, and is difficult to remove the bolt after welding deformation. At the same time, when welding, the automobile bracket is prone to rocking back and forth on the welding table, resulting in the technical problem of failure of welding the nut.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0009] A welding fixing device for a bracket welding nut comprises a welding frame and a bracket plate, wherein a positioning and fixing mechanism is fixedly installed on the top of the welding frame;

[0010] The positioning and fixing mechanism includes a positioning block, the inner cavity of the positioning block is fixedly installed with a positioning component, the positioning component includes a micro motor, the bottom of the micro motor is fixedly connected to the inner surface of the positioning block, the output end of the micro motor is fixedly installed with a rotating shaft through a reducer, and the outer surface of the rotating shaft is fixedly installed with a main gear.

[0011] As an improved technical solution, the positioning assembly also includes an internally threaded rod, the outer surface of which is rotatably connected to the inner surface of the positioning block, and a tooth block is fixedly installed on the outer surface of the internally threaded rod, and the outer surface of the tooth block is meshed with the outer surface of the main gear.

[0012] As an improved technical solution, the positioning assembly further comprises an externally threaded rod, a nut is threadedly mounted on the outer surface of the externally threaded rod, and a limiting frame is slidably mounted on the inner surface of the externally threaded rod.

[0013] As an improved technical solution, the outer surface of the externally threaded rod is threadedly connected to the inner surface of the internally threaded rod, the outer surface of the nut is rotatably connected to the inner surface of the welding frame, and the outer surface of the limiting frame is fixedly connected to the inner surface of the positioning block.

[0014] As an improved technical solution, the positioning and fixing mechanism further includes a clamping assembly, and the clamping assembly further includes a clamping hole, which is opened through the top of the positioning block, and a positioning pin is clamped and installed on the inner surface of the clamping hole.

[0015] As an improved technical solution, the outer surface of the bracket plate is provided with a slot, and the inner surface of the slot is engaged with the outer surface of the positioning pin.

[0016] As an improved technical solution, a battery is fixedly installed in the inner cavity of the positioning block, and a controller is fixedly installed on the top of the battery.

[0017] After adopting the above technical solution, the beneficial effects of the present invention are:

[0018] The present invention adds a design for rapid positioning and welding of the automobile bracket, through the coordinated use of a micro motor and a rotating shaft with a main gear and a tooth block, the coordinated use of a tooth block and an internally threaded rod with an externally threaded rod and a limiting frame, the coordinated use of an externally threaded rod and a nut with a welding frame, and the coordinated use of a positioning block and a positioning pin with a bracket plate and a slot, so that welding nuts on the bracket of a new energy vehicle is more convenient, welding nuts on different bracket frames can be welded at one time, and the product can be easily removed after welding, and the bracket frame to which the welding nuts need to be welded can be better fixed, thereby improving welding efficiency, reducing manual labor, and avoiding the bracket from slipping on the welding table during welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the welding fixing device for the bracket welding nut of the present invention.

[0021] Figure 2 It is a three-dimensional structural schematic diagram of a welding frame and a positioning and fixing mechanism of a welding and fixing device for welding nuts on a bracket according to the present invention.

[0022] Figure 3 The invention provides a welding fixing device for welding nuts of a bracket Figure 2 A is a schematic diagram of the structure of the enlarged figure.

[0023] Figure 4 It is a schematic cross-sectional three-dimensional structural diagram of the positioning and fixing mechanism of the welding fixing device for the welding nut of the bracket of the present invention.

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the positioning pin of the welding fixing device for the bracket welding nut of the present invention.

[0025] Description of reference numerals:

[0026] 1. Welding frame; 2. Positioning and fixing mechanism; 21. Positioning block; 22. Positioning assembly; 221. Micro motor; 222. Rotating shaft; 223. Main gear; 224. Internal threaded rod; 225. Gear block; 226. External threaded rod; 227. Nut; 228. Limiting frame; 23. Card assembly; 231. Card hole; 232. Positioning pin; 3. Bracket plate; 4. Card slot; 5. Battery; 6. Controller. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0029] At the same time, the meaning of "and / or" or "and / or" appearing in the full text includes three options. Taking "A and / or B" as an example, it includes option A, or option B, or a option in which both A and B are satisfied.

[0030] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their 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 at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown together, this embodiment provides a welding and fixing device for a bracket welding nut, and the welding and fixing device for a bracket welding nut comprises a welding frame 1 and a bracket plate 3, and a positioning and fixing mechanism 2 is fixedly installed on the top of the welding frame 1;

[0032] The positioning and fixing mechanism 2 includes a positioning block 21, the inner cavity of the positioning block 21 is fixedly installed with a positioning component 22, the positioning component 22 includes a micro motor 221, the bottom of the micro motor 221 is fixedly connected to the inner surface of the positioning block 21, the output end of the micro motor 221 is fixedly installed with a rotating shaft 222 through a reducer, and the outer surface of the rotating shaft 222 is fixedly installed with a main gear 223.

[0033] The micro motor 221 is electrically connected to an external power source. The micro motor 221 is controlled by an external PLC programming program. The micro motor 221 can drive the rotating shaft 222 to rotate or flip.

[0034] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown together, the positioning assembly 22 also includes an internal threaded rod 224, the outer surface of which is rotatably connected to the inner surface of the positioning block 21, and a tooth block 225 is fixedly installed on the outer surface of the internal threaded rod 224, and the outer surface of the tooth block 225 is meshed with the outer surface of the main gear 223.

[0035] like Figure 3 and Figure 4 As shown together, the positioning assembly 22 also includes an external threaded rod 226 , a nut 227 is threadedly installed on the outer surface of the external threaded rod 226 , and a limiting frame 228 is slidably installed on the inner surface of the external threaded rod 226 .

[0036] The nut 227 is embedded in the welding frame 1 and can rotate in the welding frame 1.

[0037] like Figure 1 and Figure 4 As shown together, the outer surface of the external threaded rod 226 is threadedly connected to the inner surface of the internal threaded rod 224 , the outer surface of the nut 227 is rotatably connected to the inner surface of the welding frame 1 , and the outer surface of the limiting frame 228 is fixedly connected to the inner surface of the positioning block 21 .

[0038] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown together, the positioning and fixing mechanism 2 further includes a clamping assembly 23 , and the clamping assembly 23 further includes a clamping hole 231 . The clamping hole 231 is opened through the top of the positioning block 21 , and a positioning pin 232 is clamped and installed on the inner surface of the clamping hole 231 .

[0039] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown together, the outer surface of the bracket plate 3 is provided with a slot 4 , and the inner surface of the slot 4 is engaged with the outer surface of the positioning pin 232 .

[0040] like Figure 1 , Figure 2 and Figure 4 As shown together, a battery 5 is fixedly installed in the inner cavity of the positioning block 21 , and a controller 6 is fixedly installed on the top of the battery 5 .

[0041] The controller 6 can receive external signals via WiFi to control the start and stop of the micro motor 221 .

[0042] When in use, the user first puts the positioning block 21 into the corresponding position of the welding frame 1 according to the position of the slot 4 of the bracket plate 3, and then starts the micro motor 221 through the controller 6. The micro motor 221 drives the main gear 223 to rotate through the rotating shaft 222, and the main gear 223 drives the internal threaded rod 224 to rotate through the tooth block 225. The cooperation between the internal threaded rod 224 and the limiting frame 228 drives the external threaded rod 226 to move, so that the external threaded rod 226 is inserted into the nut 227 in the welding frame 1, and drives the nut 227 to rotate, so that the external threaded rod 226 and the nut 227 are threadedly connected and self-locked, and then the user inserts the positioning pin 232 into the card hole 231 on the positioning block 21, and inserts the card slot 4 and the positioning pin 232 on the bracket plate 3 into them, fixes the bracket plate 3, and then the user puts the nut on the positioning pin 232 for welding.

[0043] It should be understood that the purpose of these embodiments is only to illustrate the present invention and is not intended to limit the protection scope of the present invention. In addition, it should also be understood that after reading the technical content of the present invention, those skilled in the art can make various changes, modifications and / or variations to the present invention, and all of these equivalent forms also fall within the protection scope defined by the appended claims of this application.

Claims

1. A welding fixture for a bracket welding nut, comprising a welding frame (1) and a bracket plate (3), characterized in that: A positioning and fixing mechanism (2) is fixedly installed on the top of the welding frame (1); The positioning and fixing mechanism (2) comprises a positioning block (21), the inner cavity of the positioning block (21) is fixedly mounted with a positioning assembly (22), the positioning assembly (22) comprises a micro motor (221), the bottom of the micro motor (221) is fixedly connected to the inner surface of the positioning block (21), the output end of the micro motor (221) is fixedly mounted with a rotating shaft (222) via a speed reducer, and the outer surface of the rotating shaft (222) is fixedly mounted with a main gear (223).

2. The welding fixing device for the bracket welding nut according to claim 1 is characterized in that: The positioning assembly (22) further comprises an internally threaded rod (224), the outer surface of which is rotatably connected to the inner surface of the positioning block (21), a tooth block (225) being fixedly mounted on the outer surface of the internally threaded rod (224), and the outer surface of the tooth block (225) being meshed with the outer surface of the main gear (223).

3. The welding fixing device for the bracket welding nut according to claim 1 is characterized in that: The positioning assembly (22) further comprises an externally threaded rod (226), a nut (227) being threadedly mounted on the outer surface of the externally threaded rod (226), and a limiting frame (228) being slidably mounted on the inner surface of the externally threaded rod (226).

4. The welding and fixing device for the bracket welding nut according to claim 3 is characterized in that: The outer surface of the externally threaded rod (226) is threadedly connected to the inner surface of the internally threaded rod (224), the outer surface of the nut (227) is rotatably connected to the inner surface of the welding frame (1), and the outer surface of the limiting frame (228) is fixedly connected to the inner surface of the positioning block (21).

5. The welding fixing device for the bracket welding nut according to claim 1, characterized in that: The positioning and fixing mechanism (2) further comprises a clamping assembly (23), and the clamping assembly (23) further comprises a clamping hole (231). The clamping hole (231) is opened through the top of the positioning block (21), and a positioning pin (232) is clamped and installed on the inner surface of the clamping hole (231).

6. The welding fixing device for the bracket welding nut according to claim 1, characterized in that: The outer surface of the bracket plate (3) is provided with a clamping groove (4), and the inner surface of the clamping groove (4) is clamped with the outer surface of the positioning pin (232).

7. The welding and fixing device for the bracket welding nut according to claim 1, characterized in that: A battery (5) is fixedly mounted in the inner cavity of the positioning block (21), and a controller (6) is fixedly mounted on the top of the battery (5).

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