A positioning device for bending a pipe of an automobile air conditioner

Abstract

The utility model provides a kind of positioning device for automobile air conditioner elbow pipe bending, including positioning bolt subassembly and positioning device main body fixed connection, drive assembly is set on positioning bolt subassembly, positioning bolt subassembly includes bolt fixed connection support, telescopic positioning bolt and locating hole finding peg, telescopic positioning bolt is movably connected on bolt fixed connection support, telescopic positioning bolt inside is equipped with peg accommodating space, locating hole finding peg is slidably set in peg accommodating space, drive assembly is fixedly connected with bolt fixed connection support, drive assembly is drivingly connected with telescopic positioning bolt, the bottom peg head of telescopic positioning bolt is compatible with the locating hole on the straight pipe before automobile air conditioner elbow pipe bending original material straight pipe.This utility model has the beneficial effect that: it can keep high-precision consistency on the finished product form after bending for automobile air conditioner elbow pipe, greatly improves the quality consistency of automobile air conditioner elbow pipe.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning pipe bending technology, specifically to a positioning device for bending automotive air conditioning pipes. Background Technology

[0002] Automotive air conditioning bends are an essential component of automotive air conditioning duct systems, designed to adapt the ductwork to the interior space of the vehicle. Therefore, the production process of automotive air conditioning bends requires bending them according to the structural design of each vehicle. Space constraints must be considered to avoid interference with other components, and the finished bend must meet precision requirements to minimize pressure loss and prevent damage.

[0003] Currently, a crucial positioning step in the production process of automotive air conditioning bends involves first drilling positioning holes in multiple straight raw pipes. Then, before bending, the positions of these positioning holes are scanned using infrared light. The straight pipes are then clamped and fixed according to the positioning hole positions before bending, ensuring that the finished shape of all automotive air conditioning bends remains largely consistent. However, because the positioning holes are stamped, they are not perfectly identical, introducing a certain degree of error. This leads to some inaccuracy in the infrared scanning of these holes. Furthermore, the rotation of the straight raw pipes during the infrared scanning process introduces a delay, resulting in inconsistent quality of the produced automotive air conditioning bends. Consequently, it is difficult to maintain a high degree of precision in the finished shape, and the product quality fails to meet user requirements. Utility Model Content

[0004] To address the problems in the prior art, this utility model provides a positioning device for bending automotive air conditioning pipes. The device comprises a positioning device body, a positioning pin assembly, and a driving assembly that cooperate with each other. The driving assembly drives the retractable positioning pin to insert into the positioning hole on the raw material straight pipe before bending and fixes the raw material straight pipe in place. This significantly improves the quality consistency of the automotive air conditioning pipes and solves the problem of insufficient quality consistency in the prior art of infrared positioning followed by bending for producing automotive air conditioning pipes.

[0005] This utility model provides a positioning device for bending automotive air conditioning pipes. It is installed on equipment used for bending automotive air conditioning pipes and includes a positioning device body, a positioning pin assembly, and a drive assembly that cooperate with each other. The positioning pin assembly is fixedly connected to the positioning device body, and the drive assembly is disposed on the positioning pin assembly. The positioning pin assembly includes a pin fixing connection bracket, a retractable positioning pin, and a positioning hole finding pin. One side of the pin fixing connection bracket is fixedly connected to the positioning device body, and the retractable positioning pin is movably connected to the pin fixing connection bracket. The retractable positioning pin has a pin receiving space inside. The positioning hole finding pin is slidably disposed in the pin receiving space. The driving component is fixedly connected to the pin fixed connection bracket. The driving component is drivenly connected to the retractable positioning pin. The bottom pin head of the retractable positioning pin is adapted to the positioning hole on the raw material straight pipe before the automotive air conditioning bend is bent. After the positioning hole finding pin finds the positioning hole, the driving component can drive the retractable positioning pin to insert into the positioning hole on the raw material straight pipe before the automotive air conditioning bend is bent and fix the raw material straight pipe without moving.

[0006] In a further improvement to this invention, the main body of the positioning device is fixedly mounted on a device for bending automotive air conditioning pipes by bolts.

[0007] The present invention is further improved in that the pin fixing connection bracket is provided with a pin telescopic guide groove, and the telescopic positioning pin is slidably connected in the pin telescopic guide groove.

[0008] In a further improvement to this invention, a return spring is provided inside the telescopic guide groove of the pin, and the return spring is elastically connected to the telescopic positioning pin.

[0009] This utility model is further improved by providing an adsorption vent and a vacuum generator at the top of the positioning hole finding pin. The vacuum generator is connected to the adsorption vent, and the adsorption vent can adsorb the positioning hole finding pin and retract it upwards.

[0010] In a further improvement of this utility model, the driving assembly includes a driving cylinder and a cylinder fixing plate that are fixedly connected. The cylinder fixing plate is fixedly connected to the pin fixing bracket, and the driving cylinder is drivenly connected to the retractable positioning pin.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a positioning device for bending automotive air conditioning pipes. By setting a positioning device body, a positioning pin assembly, and a driving assembly that cooperate with each other in the positioning device for bending automotive air conditioning pipes, the driving assembly can drive the retractable positioning pin to insert into the positioning hole on the raw material straight pipe before bending the automotive air conditioning pipe and fix the raw material straight pipe without moving it. This greatly improves the quality consistency of automotive air conditioning pipes and allows the automotive air conditioning pipes to maintain a high degree of consistency in the finished product shape after bending. Moreover, pure mechanical positioning is less prone to failure and has high production efficiency. This solves the problem that the quality consistency of automotive air conditioning pipes produced by infrared positioning and bending in the prior art is not good enough. Attached Figure Description

[0012] To more clearly illustrate the solutions in this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0013] Figure 1 This is a structural diagram of a positioning device for bending automotive air conditioning pipes according to the present invention.

[0014] Figure 2 This is a structural diagram of a positioning device for bending automotive air conditioning pipes, which is inserted into the positioning hole of a straight raw material pipe.

[0015] In the figure, 1-positioning device body, 2-positioning pin assembly, 21-pin fixing connection bracket, 22-retractable positioning pin, 23-positioning hole finding pin, 3-drive assembly. Detailed Implementation

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having” and any variations thereof in the specification, claims and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0017] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0018] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0019] like Figures 1-2As shown, this utility model provides a positioning device for bending automotive air conditioning pipes. It is installed on equipment used for bending automotive air conditioning pipes and includes a positioning device body 1, a positioning pin assembly 2, and a drive assembly 3 that cooperate with each other. The positioning pin assembly 2 is fixedly connected to the positioning device body 1. The drive assembly 3 is disposed on the positioning pin assembly 2. The positioning pin assembly 2 includes a pin fixing connection bracket 21, a retractable positioning pin 22, and a positioning hole finding pin 23. One side of the pin fixing connection bracket 21 is fixedly connected to the positioning device body 1. The retractable positioning pin 22 is movably connected to the pin fixing connection bracket 21. The retractable positioning pin 22 has a pin receiving space inside, and the positioning hole finding pin 23 is slidably disposed within the pin receiving space. The drive assembly 3 is fixedly connected to the pin fixing connection bracket 21 and is drivenly connected to the retractable positioning pin 22. The bottom pin head of the retractable positioning pin 22 is adapted to the positioning hole on the raw material straight pipe before bending the automotive air conditioning pipe. In this embodiment, the drive assembly can drive the retractable positioning pin to insert into the positioning hole on the raw material straight pipe before the automotive air conditioning bend is bent after the positioning hole finding pin finds the positioning hole and fixes the raw material straight pipe in place. When it is necessary to fix the raw material straight pipe before the automotive air conditioning bend is bent, the raw material straight pipe is first moved to the device for fixing the raw material straight pipe. The device for fixing the raw material straight pipe rolls the raw material straight pipe before the automotive air conditioning bend is bent, so that the positioning hole aligns with the positioning hole finding pin during the rotation. Under the action of gravity, the positioning hole finding pin falls into the positioning hole on the raw material straight pipe. Then the device for fixing the raw material straight pipe stops rolling the automotive air conditioning bend. Before bending, the raw material straight pipe is driven by a drive assembly to insert a retractable positioning pin into the positioning hole on the raw material straight pipe and correct its position. The device for fixing the raw material straight pipe keeps it in place. Then, the positioning device for bending the automotive air conditioning pipe in this embodiment rotates to the side to avoid it. Then, the automotive air conditioning pipe bending machine bends it at a set angle, which greatly improves the quality consistency of the automotive air conditioning pipe. It can keep the finished product shape of the automotive air conditioning pipe with high precision. Moreover, compared with the existing ultraviolet light scanning positioning method, pure mechanical positioning is less prone to failure and has higher production efficiency.

[0020] like Figures 1-2As shown, the main body 1 of the positioning device is fixedly mounted on the equipment used for bending automotive air conditioning pipes by bolts. The pin fixing connection bracket 21 is provided with a pin telescopic guide slide groove. The telescopic positioning pin 22 is slidably connected in the pin telescopic guide slide groove. The pin telescopic guide slide groove 22 is also provided with a return spring. The return spring is elastically connected to the telescopic positioning pin 22. The top of the positioning hole finding pin 23 is provided with an adsorption air hole and a vacuum generator. The vacuum generator is connected to the adsorption air hole. The adsorption air hole can adsorb the positioning hole finding pin 23 and retract it upwards. The drive assembly 3 includes a fixedly connected drive cylinder and a cylinder fixing plate. The cylinder fixing plate is fixedly connected to the pin fixing connection bracket 21. The drive cylinder is drivenly connected to the telescopic positioning pin. In this embodiment, the drive cylinder is used to drive the retractable positioning pin to extend and insert into the positioning hole on the raw material straight pipe before the automotive air conditioning bend is bent, and to correct the position of the raw material straight pipe. After the bending operation is completed, the retractable positioning pin is driven to retract and pull out the positioning hole on the raw material straight pipe before the automotive air conditioning bend is bent. At the same time, the vacuum generator uses the adsorption air hole to adsorb the positioning hole to find the pin and retract upward to pull out the positioning hole on the raw material straight pipe before the automotive air conditioning bend is bent, so as to carry out the bending operation of the next raw material straight pipe.

[0021] As can be seen from the above, this utility model provides a positioning device for bending automotive air conditioning pipes. By setting a positioning device body, a positioning pin assembly, and a driving assembly that cooperate with each other in the positioning device for bending automotive air conditioning pipes, the driving assembly can drive the retractable positioning pin to insert into the positioning hole on the raw material straight pipe before bending the automotive air conditioning pipe and fix the raw material straight pipe without moving it. This greatly improves the quality consistency of automotive air conditioning pipes and allows the automotive air conditioning pipes to maintain a high degree of consistency in the shape of the finished product after bending. Moreover, pure mechanical positioning is less prone to failure and has high production efficiency. This solves the problem that the quality consistency of automotive air conditioning pipes produced by infrared positioning and bending in the prior art is not good enough.

[0022] The specific embodiments described above are preferred embodiments of this utility model, and are not intended to limit the specific scope of this utility model. The scope of this utility model includes but is not limited to the specific embodiments described above. All equivalent changes made in accordance with this utility model are within the protection scope of this utility model.

Claims

1. A positioning device for bending automotive air conditioning pipes, mounted on equipment for bending automotive air conditioning pipes, characterized in that: The device includes a positioning device body, a positioning pin assembly, and a drive assembly that cooperate with each other. The positioning pin assembly is fixedly connected to the positioning device body. The drive assembly is disposed on the positioning pin assembly. The positioning pin assembly includes a pin fixing connection bracket, a retractable positioning pin, and a positioning hole finding pin. One side of the pin fixing connection bracket is fixedly connected to the positioning device body. The retractable positioning pin is movably connected to the pin fixing connection bracket. The retractable positioning pin has a pin receiving space inside, and the positioning hole finding pin is slidably disposed in the pin receiving space. The drive assembly is fixedly connected to the pin fixing connection bracket and drivenly connected to the retractable positioning pin. The bottom pin head of the retractable positioning pin is adapted to the positioning hole on the raw material straight pipe before the automotive air conditioning bend is bent. After the positioning hole finding pin finds the positioning hole, the drive assembly can drive the retractable positioning pin to insert into the positioning hole on the raw material straight pipe before the automotive air conditioning bend is bent and fix the raw material straight pipe in place.

2. The positioning device for bending automotive air conditioning pipes according to claim 1, characterized in that: The main body of the positioning device is fixedly mounted on a device used for bending automotive air conditioning pipes by bolts.

3. The positioning device for bending automotive air conditioning pipes according to claim 2, characterized in that: The pin-fixed connection bracket is provided with a pin telescopic guide groove, and the telescopic positioning pin is slidably connected in the pin telescopic guide groove.

4. The positioning device for bending automotive air conditioning pipes according to claim 3, characterized in that: The telescopic guide groove of the pin is also provided with a return spring, which is elastically connected to the telescopic positioning pin.

5. The positioning device for bending automotive air conditioning pipes according to claim 3, characterized in that: The top of the positioning hole finding pin is provided with an adsorption air hole and a vacuum generator. The vacuum generator is connected to the adsorption air hole, and the adsorption air hole can adsorb the positioning hole finding pin and retract it upwards.

6. The positioning device for bending automotive air conditioning pipes according to claim 3, characterized in that: The drive assembly includes a drive cylinder and a cylinder fixing plate that are fixedly connected. The cylinder fixing plate is fixedly connected to the pin fixing bracket, and the drive cylinder is drivenly connected to the retractable positioning pin.

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