Automatic rotating and positioning mechanism for circular tube of tail door supporting rod

Abstract

The utility model relates to the technical field of tail door stay bar positioning mechanisms, in particular to a tail door stay bar circular tube automatic rotation positioning mechanism which comprises a transmission shaft, one end of the transmission shaft is fixedly connected with a power connecting shaft, and the end, away from the power connecting shaft, of the transmission shaft is fixedly connected with a transmission boss. A mounting hole is formed in the end face of the end, away from the transmission shaft, of the transmission boss and extends into the transmission shaft, two transmission clamping holes are formed in the side wall of the transmission shaft, and the transmission clamping holes are symmetrically distributed about the central axis of the transmission shaft. According to the utility model, the movable rod and the spring are arranged in the mounting hole, so that the positioning contact of the rotary positioning workpiece to the tail door stay bar circular tube is flexible contact, the protection in the production of the tail door stay bar circular tube is facilitated, the production quality is improved, the consistency and the stability of a tool feeding process are facilitated, and the production efficiency is improved. The positioning device can be suitable for positioning tail door supporting rod circular pipes with different lengths, time waste caused by line changing is greatly reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a tailgate support rod positioning mechanism, in particular to an automatic rotation positioning mechanism for a round tube of a tailgate support rod, and belongs to the technical field of an automatic production line for automobile tailgate support rods. Background Art

[0002] With the increasing number of vehicles in society, there are more and more types of vehicles. The tailgate designs of different vehicles are different, and the sizes of the tailgate strut round tubes required are also different. In the production of tailgate strut round tubes, it is necessary to first select suitable metal materials and other components according to the needs, and process the metal parts through turning, milling, drilling and other processes to make the strut main body and connecting parts, and then perform anti-rust, electroplating and other treatments to improve corrosion resistance. After the surface treatment is completed, other components are installed on the strut main body, and pressure tests and telescopic performance tests are performed to ensure the quality of the strut.

[0003] At present, when the tailgate support rod round tube is processed, surface treated and assembled, a rotation positioning workstation is required. Generally, the tailgate support round tube is directly contacted and tightened in a fixed position and then rotated. The workpieces of this rotation positioning are all fixed in length. When it is necessary to process tailgate support rod round tubes of different lengths, the requirements for non-standard tooling loading procedures will be higher, which is not conducive to the consistency and stability of the tooling loading mechanism. The tailgate support rod round tube is easily damaged when the tooling loading procedure is alternated with the rotation positioning workpiece. In addition, it is necessary to replace the suitable rotation positioning workpiece for use, which greatly increases the waste of time, reduces production efficiency, and also increases the output of processing costs.

[0004] Therefore, it is urgent to improve the automatic rotation and positioning mechanism of the tailgate support rod round tube to solve the above-mentioned problems. Utility Model Content

[0005] The utility model aims to provide an automatic rotation and positioning mechanism for a tailgate support rod round tube. By arranging a movable rod and a spring in the mounting hole, the positioning contact of the rotation and positioning workpiece with the tailgate support rod round tube is flexible, which is beneficial to the protection of the tailgate support rod round tube in the production and improves the production quality. At the same time, it is beneficial to the consistency and stability of the tooling feeding process and can be suitable for the positioning of tailgate support rod round tubes of different lengths, which greatly reduces the time waste caused by line change and improves production efficiency.

[0006] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include: including a transmission shaft, one end of the transmission shaft is fixedly connected to a power connecting shaft, the end of the transmission shaft away from the power connecting shaft is fixedly connected to a transmission boss, and the end surface of the transmission boss away from the transmission shaft is provided with a mounting hole, the mounting hole extends into the transmission shaft, and two transmission clamping holes are provided on the side wall of the transmission shaft, the transmission clamping holes are symmetrically distributed about the central axis of the transmission shaft, the transmission clamping holes are located at the direction of the transmission shaft close to the transmission boss, and the two transmission clamping holes are connected to the mounting hole.

[0007] Preferably, a movable rod is slidably connected to the inner wall of the mounting hole, one end of the movable rod is fixedly connected to a positioning step, the positioning step is located in the opening direction of the mounting hole, and one end of the positioning step away from the movable rod is fixedly connected to a positioning protrusion, and the positioning protrusion is used to position the tailgate support rod round tube.

[0008] Preferably, a sliding groove is provided on the side wall of the movable rod, the sliding groove passes through the side wall of the movable rod, and the sliding groove is located at the center of the movable rod.

[0009] Preferably, a transmission pin is commonly clamped on the inner walls of the two transmission clamping holes, both ends of the transmission pin are in close contact with the inner walls of the two transmission clamping holes, and the outer wall of the transmission pin is slidably connected to the inner wall of the sliding groove.

[0010] Preferably, a spring is provided between one end of the movable rod away from the positioning step and the inner bottom wall of the mounting hole, one end of the spring is fixedly connected to the inner bottom wall of the mounting hole, and the other end of the spring is fixedly connected to the end of the movable rod away from the positioning step.

[0011] Preferably, an end of the positioning protrusion away from the positioning step is chamfered, and a diameter of the positioning step is larger than a diameter of the positioning protrusion and a diameter of the mounting hole.

[0012] The utility model has at least the following beneficial effects:

[0013] 1. The utility model arranges a movable rod and a spring in the mounting hole, so that the positioning contact of the rotating positioning workpiece with the tailgate support rod round tube is flexible, which is beneficial to the protection of the tailgate support rod round tube in production and improves the production quality. At the same time, it is beneficial to the consistency and stability of the tooling feeding process, and can be suitable for the positioning of tailgate support rod round tubes of different lengths, which greatly reduces the time waste caused by line change and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0015] Figure 1 The three-dimensional Figure 1 Schematic diagram;

[0016] Figure 2 A schematic diagram of the movable rod provided by the utility model;

[0017] Figure 3 An explosion schematic diagram provided for the utility model;

[0018] Figure 4 A schematic diagram of the transmission shaft provided by the utility model;

[0019] Figure 5 The utility model provides a spring compression state three-dimensional Figure 2 Schematic diagram.

[0020] In the figure, 1, transmission shaft; 11, power connecting shaft; 12, transmission boss; 13, mounting hole; 14, transmission card hole; 2, movable rod; 21, positioning step; 22, positioning protrusion; 221, chamfer; 23, sliding groove; 3, transmission pin; 4, spring. DETAILED DESCRIPTION

[0021] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0022] like Figure 1-Figure 5 As shown, the tailgate support rod round tube automatic rotation positioning mechanism provided by the present embodiment has one end of the transmission shaft 1 fixedly connected with the power connecting shaft 11, and the end of the transmission shaft 1 away from the power connecting shaft 11 is fixedly connected with the transmission boss 12, and the end surface of the transmission boss 12 away from the transmission shaft 1 is provided with a mounting hole 13, and the mounting hole 13 extends into the transmission shaft 1, and two transmission clamping holes 14 are provided on the side wall of the transmission shaft 1, and the transmission clamping holes 14 are symmetrically distributed about the central axis of the transmission shaft 1, and the transmission clamping holes 14 are located in the direction of the transmission shaft 1 close to the transmission boss 12, and the two transmission clamping holes 14 are connected with the mounting hole 13, and the transmission shaft 1 is used to connect the rotating mechanism, and the transmission clamping holes 14 are used to support the transmission pin 3 and drive the transmission pin 3 to rotate.

[0023] Secondly, if Figure 2 as well as Figure 4As shown, a movable rod 2 is slidably connected to the inner wall of the mounting hole 13, and a positioning step 21 is fixedly connected to one end of the movable rod 2. The positioning step 21 is located in the opening direction of the mounting hole 13, and a positioning protrusion 22 is fixedly connected to the end of the positioning step 21 away from the movable rod 2. The positioning protrusion 22 is used to position the tailgate support rod round tube, and a sliding groove 23 is opened on the side wall of the movable rod 2. The sliding groove 23 runs through the side wall of the movable rod 2, and the sliding groove 23 is located at the center of the movable rod 2. The sliding groove 23 is used to cooperate with the transmission pin 3 to slide and cooperate with the transmission pin 3 to drive the sliding groove 23, the positioning step 21 and the positioning protrusion 22 to rotate.

[0024] Further, such as Figure 3 As shown, a transmission pin 3 is commonly clamped on the inner walls of the two transmission clamping holes 14, both ends of the transmission pin 3 are in close contact with the inner walls of the two transmission clamping holes 14, and the outer wall of the transmission pin 3 is slidably connected to the inner wall of the sliding groove 23. The transmission pin 3 is used to transmit during rotation and to limit the extension and retraction of the movable rod 2.

[0025] Furthermore, if Figure 3 as well as Figure 4 As shown, a spring 4 is provided between one end of the movable rod 2 away from the positioning step 21 and the inner bottom wall of the mounting hole 13, one end of the spring 4 is fixedly connected to the inner bottom wall of the mounting hole 13, and the other end of the spring 4 is fixedly connected to one end of the movable rod 2 away from the positioning step 21, and the spring 4 is used for elastic contact during positioning to ensure that the round tube of the tailgate support rod will not be damaged.

[0026] Furthermore, Figure 2 as well as Figure 4 As shown, a chamfer 221 is provided at one end of the positioning protrusion 22 away from the positioning step 21, and the diameter of the positioning step 21 is larger than the diameter of the positioning protrusion 22 and the diameter of the mounting hole 13. The positioning protrusion 22 is used to position the tailgate support rod round tube, and the chamfer 221 is used to smoothly insert the positioning protrusion 22 into the tailgate support rod round tube for positioning.

[0027] like Figure 1-Figure 5As shown, the principle of the automatic rotation positioning mechanism of the tailgate support rod round tube provided in this embodiment is as follows: when installing the automatic rotation positioning mechanism of the tailgate support rod round tube, the power connecting shaft 11 is installed with the rotating mechanism, the spring 4 is fixed to the inner bottom wall of the mounting hole 13, the movable rod 2 is inserted into the mounting hole 13, the movable rod 2 is rotated to align the transmission clamping hole 14 with the sliding groove 23, the transmission pin 3 is inserted from one transmission clamping hole 14, passes through the sliding groove 23 and extends to the other transmission clamping hole 14, and the transmission pin 3 is firmly fixed in the two transmission clamping holes 14. When the dynamic rotating positioning mechanism positions the tailgate support rod round tube, the positioning protrusion 22 is used to position the tailgate support rod round tube. Under the action of the tailgate support rod round tube, the positioning protrusion 22 will move in the direction of the spring until the force reaches a balance and stops moving. The rotating mechanism drives the power connecting shaft 11 to rotate, and the power connecting shaft 11 drives the transmission shaft 1, the transmission card hole 14 and the transmission boss 12 to rotate. The transmission card hole 14 drives the transmission pin 3 to rotate. Under the action of the sliding groove 23, the transmission pin 3 drives the movable rod 2, the positioning step 21 and the positioning protrusion 22 to rotate.

[0028] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0029] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0030] The above description shows and describes several preferred embodiments of the utility model, but as mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A tailgate support rod round tube automatic rotation positioning mechanism, comprising a transmission shaft (1), characterized in that: One end of the transmission shaft (1) is fixedly connected to a power connection shaft (11), and one end of the transmission shaft (1) away from the power connection shaft (11) is fixedly connected to a transmission boss (12). An end surface of the transmission boss (12) away from the transmission shaft (1) is provided with a mounting hole (13), and the mounting hole (13) extends into the transmission shaft (1). Two transmission clamping holes (14) are provided on a side wall of the transmission shaft (1), and the transmission clamping holes (14) are symmetrically distributed about a central axis of the transmission shaft (1). The transmission clamping holes (14) are located at a direction position of the transmission shaft (1) close to the transmission boss (12), and the two transmission clamping holes (14) are both connected to the mounting hole (13).

2. The tailgate support rod round tube automatic rotation positioning mechanism according to claim 1, characterized in that: A movable rod (2) is slidably connected to the inner wall of the mounting hole (13); one end of the movable rod (2) is fixedly connected to a positioning step (21); the positioning step (21) is located in the opening direction of the mounting hole (13); one end of the positioning step (21) away from the movable rod (2) is fixedly connected to a positioning protrusion (22); the positioning protrusion (22) is used to position the tailgate support rod round tube.

3. The tailgate support rod round tube automatic rotation positioning mechanism according to claim 2, characterized in that: A sliding groove (23) is provided on the side wall of the movable rod (2), the sliding groove (23) penetrates the side wall of the movable rod (2), and the sliding groove (23) is located at the center of the movable rod (2).

4. The tailgate support rod round tube automatic rotation positioning mechanism according to claim 3, characterized in that: A transmission pin (3) is commonly engaged with the inner walls of the two transmission engaging holes (14), two ends of the transmission pin (3) are in close contact with the inner walls of the two transmission engaging holes (14), and the outer wall of the transmission pin (3) is slidably connected with the inner wall of the sliding groove (23).

5. The tailgate support rod round tube automatic rotation positioning mechanism according to claim 2, characterized in that: A spring (4) is provided between one end of the movable rod (2) away from the positioning step (21) and the inner bottom wall of the mounting hole (13); one end of the spring (4) is fixedly connected to the inner bottom wall of the mounting hole (13); and the other end of the spring (4) is fixedly connected to one end of the movable rod (2) away from the positioning step (21).

6. The tailgate support rod round tube automatic rotation positioning mechanism according to claim 2, characterized in that: A chamfer (221) is provided at one end of the positioning protrusion (22) away from the positioning step (21), and the diameter of the positioning step (21) is larger than the diameter of the positioning protrusion (22) and the diameter of the mounting hole (13).

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