Automatic double-ball loading equipment for bent pipe of safety belt retractor

By designing an automatic double-ball loading device for a seatbelt retractor bending tube, the automated assembly and testing of double balls and plastic parts has been achieved, solving the problem of low production efficiency in existing technologies and improving assembly accuracy and efficiency.

CN223629882UActive Publication Date: 2025-12-05DONGGUAN ZHIXIANG AUTOMATION TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202423298524.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-12-05
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

In existing technologies, the internal irregular-shaped components of the seat belt retractor are complex to install, making it impossible to achieve automatic assembly of the two balls, and there is a lack of effective detection methods, resulting in low production efficiency.

Method used

Design an automatic double-ball assembly device for seat belt retractor bend tubes, including a double-ball irregular part assembly mechanism and a bend tube assembly mechanism. The device uses a robot and a detection device to achieve automatic assembly and accurate detection of the double balls and plastic parts, ensuring automatic installation after position calibration.

Benefits of technology

It improved production efficiency, enabled automated assembly and inspection of double balls and plastic parts, reduced manual intervention, and improved assembly accuracy and production efficiency.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a safety belt retractor elbow pipe automatic double-ball assembling device which comprises an elbow pipe, a special-shaped piece capable of being installed at one end of the elbow pipe, a double-ball special-shaped piece assembling mechanism used for assembling the double balls and the plastic piece, and an elbow pipe assembling mechanism used for assembling the special-shaped piece on the elbow pipe. The double-ball special-shaped part assembling mechanism comprises a double-ball feeding assembly, a positioning plastic part feeding assembly and a special-shaped part assembling assembly. The double-ball feeding assembly comprises a double-ball vibration disc, a double-ball material channel, a double-ball feeding detection rotating platform, a double-ball taking mechanical arm and a double-ball feeding detection column arranged on the double-ball taking mechanical arm. A through hole allowing the double-ball feeding detection column to be inserted therein is formed in one end of each double ball. The device is high in automation degree, capable of correspondingly placing double balls and plastic parts into the bent pipe in a rotating mode and detecting the installed bent pipe, high in detection accuracy, time-saving and labor-saving, and capable of effectively improving production efficiency.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a safety belt technical field especially relates to a safety belt retractor elbow automatic equipment of double ball. BACKGROUND

[0002] The vehicle safety belt is the important component in the vehicle occupant restraint system, especially in traffic accident can provide protection for the vehicle occupant, avoid the occupant to be hurt or the harm to reduce to the minimum degree. Along with the vehicle possession quantity unceasing increase, the vehicle user to the safety performance of vehicle safety belt is higher and higher.

[0003] The traditional vehicle safety belt before the collision of the vehicle, because the gap between the safety belt and the occupant, the safety belt can not effectively adhere to the occupant's body. When the collision occurs, the gap between the safety belt and the occupant delays the time of the vehicle safety belt protection, reduces the protection effect.

[0004] In order to improve the protection effect of vehicle safety belt, in addition to the known pre-tightening safety belt, which includes a safety belt pretensioner, the safety belt pretensioner includes a pre-tightening trigger mechanism and a pre-tightening transmission mechanism, the pre-tightening trigger mechanism is usually composed of a pyrotechnic trigger mechanism, the pre-tightening transmission mechanism usually includes a plurality of metal balls and a ball gear connected with the winding drum assembly, wherein, when the pre-tightening trigger mechanism receives a vehicle collision signal, the pyrotechnic generator of the pre-tightening trigger mechanism ignites, the metal balls are thus pushed, they are in turn engaged with the ball gear, push the ball gear, so that the winding drum assembly fixedly connected with the ball gear is rotated in the winding direction, thus the safety belt is wound, thereby eliminating the gap between the safety belt and the occupant, so that the vehicle safety belt can start to protect the function of the occupant in the early stage of the collision, which obviously improves the protection effect of the vehicle safety belt.

[0005] Among them, the mandrel is the component of the safety belt, especially the profile body inside the mandrel is installed in the elbow, which is very complex, in the prior art, automatic assembly of double balls cannot be realized, and detection of the assembly effect of double balls is not provided, if detection is needed, only manual detection can be carried out, which increases the detection time and reduces the working efficiency of the whole production process. UTILITY MODEL CONTENTS

[0006] In view of the above shortcomings, the utility model aims at providing a safety belt retractor elbow automatic equipment of double ball, which has high automation degree, can correspondingly rotate the double ball and the plastic part into the elbow, and detects the installed elbow, has high detection accuracy, saves time and effort, and effectively improves the production efficiency.

[0007] The utility model adopts the technical scheme of:

[0008] The application discloses a safety belt retractor elbow pipe automatic double-ball assembling device, which comprises an elbow pipe, a special-shaped part which can be mounted on one end of the elbow pipe, a double-ball special-shaped part assembling mechanism which is arranged on a platform and is used for assembling the double ball and the plastic part, and an elbow pipe assembling mechanism which is arranged on the platform and is used for assembling the special-shaped part on the elbow pipe.

[0009] As a further improvement of the application, the double-ball feeding detection rotating platform comprises a double-ball feeding detection rotating support which is arranged on the platform, a double-ball feeding detection rotating motor which is arranged on the double-ball feeding detection rotating support, and a double-ball feeding detection seat which is arranged on the output shaft of the double-ball feeding detection rotating motor and is used for placing the double ball.

[0010] As a further improvement of the application, the double-ball feeding detection rotating platform comprises a double-ball feeding detection rotating support which is arranged on the platform, a double-ball feeding detection rotating motor which is arranged on the double-ball feeding detection rotating support, and a double-ball feeding detection seat which is arranged on the output shaft of the double-ball feeding detection rotating motor and is used for placing the double ball.

[0011] As a further improvement of the application, the double-ball feeding detection rotating platform comprises a double-ball feeding detection rotating support which is arranged on the platform, a double-ball feeding detection rotating motor which is arranged on the double-ball feeding detection rotating support, and a double-ball feeding detection seat which is arranged on the output shaft of the double-ball feeding detection rotating motor and is used for placing the double ball.

[0012] As a further improvement of the utility model, the profiled piece assembly component includes a profiled piece assembly support erected on the platform, a profiled piece assembly rotary cylinder arranged on the profiled piece assembly support, a profiled piece assembly rotating plate arranged on the profiled piece assembly rotary cylinder, and a profiled piece assembly seat symmetrically arranged on the profiled piece assembly rotating plate.

[0013] As a further improvement of the utility model, the bent pipe assembly mechanism includes a profiled piece rotating and clamping component erected on the platform and a bent pipe fixing component erected on the platform and opposite to the profiled piece rotating and clamping component.

[0014] As a further improvement of the utility model, the profiled piece rotating and clamping component includes a profiled piece rotating support erected on the platform, a profiled piece rotary cylinder arranged on the profiled piece rotating support, a profiled piece telescopic cylinder arranged on the upper side of the output shaft of the profiled piece rotary cylinder, a profiled piece clamping piece arranged on the output shaft of the profiled piece telescopic cylinder and the output shaft of the profiled piece rotary cylinder, a profiled piece sliding table erected on the platform, the profiled piece sliding table including a profiled piece sliding plate arranged on the platform, profiled piece sliding rails symmetrically arranged on both sides of one end of the profiled piece sliding plate, profiled piece sliding blocks slidingly arranged on the profiled piece sliding rails and fixed on the upper end of the profiled piece rotating support, and a profiled piece rotating support frame arranged on the other end of the profiled piece sliding plate, the profiled piece telescopic cylinder being arranged on the side of the profiled piece rotating support frame, and the output shaft of the profiled piece rotary cylinder penetrating through the profiled piece rotating support frame and being connected with the profiled piece clamping piece.

[0015] As a further improvement of the utility model, the bent pipe fixing component includes a bent pipe limiting table erected on the platform and provided with the bent pipe, and at least one bent pipe limiting structure arranged on the outer side of the bent pipe limiting table.

[0016] As a further improvement of the utility model, the bent pipe limiting structure includes a bent pipe limiting telescopic cylinder arranged on the bent pipe limiting table, a bent pipe limiting fixed block fixed on the side of the bent pipe limiting table, and a bent pipe limiting block arranged on the output shaft of the bent pipe limiting telescopic cylinder and abutting against the side of the bent pipe.

[0017] As a further improvement of the utility model, the bent pipe fixing component further includes a bent pipe detection structure erected on the platform, the bent pipe detection structure including a bent pipe detection support frame erected on the platform and inclined towards the profiled piece on the bent pipe, a bent pipe detection sliding table arranged on the bent pipe detection support frame and opposite to the profiled piece on the bent pipe, and a bent pipe detection proximity sensor arranged on the bent pipe detection sliding table.

[0018] The utility model has the advantages that:

[0019] By setting the double ball special-shaped part assembling mechanism of the present safety belt retractor elbow pipe automatic double ball assembling device to include a double ball special-shaped part assembling mechanism erected on a platform and assembling double ball and plastic parts, and an elbow pipe assembling mechanism erected on a platform and assembling special-shaped parts on an elbow pipe, the double ball and plastic parts are fed and accurately assembled in the double ball special-shaped part assembling mechanism, thereby completing the special-shaped part assembling step, and then the assembled special-shaped parts are conveyed to the elbow pipe assembling mechanism by the double ball special-shaped part assembling mechanism, and then the elbow pipe assembling mechanism assembles the special-shaped parts on the elbow pipe, thereby completing the whole assembling step. The whole process has high automation degree, can correspondingly rotate the double ball and plastic parts into the elbow pipe, saves time and effort, and effectively improves the production efficiency.

[0020] By setting the double ball special-shaped part assembling mechanism to include a double ball feeding assembly, a positioning plastic part feeding assembly, and a special-shaped part assembling assembly, the upper end of the double ball is formed with a plastic part mounting groove for mounting the plastic part, and the lower end surface of the plastic part is formed with a plastic part penetrating mounting column embedded in the through hole. The double ball feeding assembly feeds and positionally calibrates the double ball, and conveys the calibrated double ball to the special-shaped part assembling assembly. At the same time, the positioning plastic part feeding assembly feeds and positionally calibrates the plastic part, and conveys the calibrated plastic part to the double ball on the special-shaped part assembling assembly, so that the plastic part is aligned with the plastic part mounting groove on the double ball as a whole, the plastic part penetrating mounting column on the plastic part penetrates through the through hole, thereby realizing the mounting of the plastic part on the double ball and completing the assembling of the special-shaped part. The whole process has high automation degree, can correspondingly feed and detect the double ball and plastic parts, correct the positions of the double ball and plastic parts, and automatically mount the plastic part on the double ball, without manual detection and assembling, thereby saving time and effort and effectively improving the production efficiency.

[0021] By setting the double ball feeding assembly to include a double ball vibration disc erected on the platform, a double ball material channel erected on the platform and connected to the double ball vibration disc at one end, a double ball feeding detection rotating platform erected on the platform and opposite to the other end of the double ball material channel, a double ball taking manipulator erected on the platform, a double ball feeding detection column arranged on the double ball taking manipulator, a through hole is formed on one end of the double ball for inserting the double ball feeding detection column, the double ball is placed in the double ball vibration disc, and is conveyed to the double ball feeding detection rotating platform through the double ball material channel connected to the double ball vibration disc, the double ball taking manipulator is started to drive the double ball feeding detection column arranged thereon to move downward, so that the double ball feeding detection column penetrates into the through hole to align the double ball, if the double ball feeding detection column cannot penetrate into the through hole, the double ball feeding detection rotating platform is started to make the double ball feeding detection rotating platform drive the double ball on it to flip transversely, the double ball taking manipulator is started again to drive the double ball feeding detection column to press down until the double ball feeding detection column penetrates through the through hole of the double ball, and the double ball taking manipulator clamps and conveys the double ball aligned to the special-shaped part assembling assembly for installation, the whole process is highly automated, the double ball is accurately aligned, the alignment is accurate, and the production efficiency is effectively improved.

[0022] The above is a summary of the technical scheme of the utility model, and the utility model will be further described in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a whole schematic view of the utility model;

[0024] Figure 2 It is a structural schematic view of the double ball;

[0025] Figure 3 It is a structural schematic view of the plastic part;

[0026] Figure 4 It is a structural schematic view of the special-shaped part;

[0027] Figure 5 It is a structural schematic view of the bent pipe;

[0028] Figure 6 It is a structural schematic view of the special-shaped part installed on the bent pipe;

[0029] Figure 7 It is a whole schematic view of the double ball feeding assembly;

[0030] Figure 8 It is a structural schematic view of the double ball feeding detection rotating platform, the double ball taking manipulator and the double ball feeding detection column;

[0031] Figure 9 It is a structural schematic view of the double ball feeding detection seat;

[0032] Figure 10 The overall schematic diagram of the plastic part feeding assembly;

[0033] Figure 11 The structural schematic diagram of the plastic part taking manipulator and the plastic part rotating platform;

[0034] Figure 12 The partial structural schematic diagram of the inside of the plastic part rotating platform;

[0035] Figure 13 The structural schematic diagram of the special-shaped part assembling assembly;

[0036] Figure 14 The overall schematic diagram of the bent pipe assembling mechanism;

[0037] Figure 15 The structural schematic diagram of the special-shaped part rotating and clamping assembly;

[0038] Figure 16 The structural schematic diagram of the bent pipe fixing assembly;

[0039] In the figure: 1, double ball special-shaped part assembling mechanism; 11, double ball feeding assembly; 111, double ball vibration disc; 112, double ball material channel; 113, double ball feeding detection rotating platform; 1131, double ball feeding detection rotating support; 1132, double ball feeding detection rotating motor; 1133, double ball feeding detection seat; 11331, double ball feeding detection limiting seat; 11332, double ball feeding detection limiting groove; 113321, double ball detection channel; 1134, double ball feeding detection limiting block; 1135, double ball detection limiting assembly; 11351, double ball detection limiting support; 11352, double ball detection piece; 114, double ball taking mechanical arm; 115, double ball feeding detection column; 12, positioning plastic part feeding assembly; 121, plastic part vibration disc; 122, plastic part material channel; 123, plastic part transposition material channel; 124, plastic part taking mechanical arm; 125, plastic part rotating platform; 1251, plastic part rotating support; 1252, plastic part rotating driving motor; 1253, plastic part rotating driving rack; 1254, plastic part rotating gear; 1255, plastic part rotating seat; 1256, plastic part limiting block; 1257, plastic part detection piece; 13, special-shaped part assembling assembly; 131, special-shaped part assembly support; 132, special-shaped part assembly rotary cylinder; 133, special-shaped part assembling rotating plate; 134, special-shaped part assembling seat; 2, bent pipe assembling mechanism; 21, special-shaped part rotating clamping assembly; 211, special-shaped part rotating support; 212, special-shaped part rotating cylinder; 213, special-shaped part telescopic cylinder; 214, special-shaped part clamping piece; 2141, special-shaped part clamping groove; 215, special-shaped part sliding table; 2151, special-shaped part sliding plate; 2152, special-shaped part sliding rail; 2153, special-shaped part sliding block; 2154, special-shaped part rotating support frame; 22, bent pipe fixing assembly; 221, bent pipe limiting table; 222, bent pipe limiting structure; 2221, bent pipe limiting telescopic cylinder; 2222, bent pipe limiting fixed block; 2223, bent pipe limiting block; 223, bent pipe detection structure; 2231, bent pipe detection support; 2232, bent pipe detection sliding table; 2233, bent pipe detection proximity sensor; 3, bent pipe; 31, special-shaped part fixing hole; 4, special-shaped part; 41, double ball; 411, through hole; 412, plastic part mounting groove; 413, detection hole; 42, plastic part; 421, plastic part through mounting column; 422, special-shaped part embedding fixed column. DETAILED DESCRIPTION

[0040] In order to further clarify the technical means and effects adopted by the utility model to achieve the predetermined purpose and the specific implementation manner, the specific implementation manner of the utility model will be described in detail below in combination with the preferred embodiments and the drawings.

[0041] In the description of the utility model, it is understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0042] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0043] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, can also be detachably connected, or integrated; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0044] Please refer to Figures 1 to 16The utility model discloses a kind of automatic equipment of double ball of safety belt retractor elbow pipe, including a elbow pipe 3, profiled piece 4 can be installed on the one end of elbow pipe 3, the profiled piece includes a double ball 41 and is provided on double ball 41 One plastic part 42, further include erect on platform and the assembly of double ball 41 and plastic part 42 One double ball profiled piece assembly mechanism 1,And erect on platform and the assembly of profiled piece 4 on elbow pipe 3 One elbow pipe assembly mechanism 2;The double ball profiled piece assembly mechanism 1 includes setting on platform One double ball feeding assembly 11, setting on platform One positioning plastic part feeding assembly 12, setting platform One profiled piece assembly component 13;The double ball feeding assembly 11 includes erect on platform One double ball vibration disc 111, erect on platform and one end is connected on double ball vibration disc 111 One double ball material channel 112, erect on platform and the other end of One double ball feeding detection rotary platform 113 directly to double ball material channel 112, erect on platform One double ball material taking manipulator 114, setting on the double ball material taking manipulator 114 One double ball feeding detection column 115, double ball One end is formed with for the double ball feeding detection column 115 insertion One through hole 411, double ball 41 upper end is formed with for plastic part 42 installation One plastic part installation groove 412, plastic part 42 lower end face is formed with embedding through hole 411 One plastic part through installation column 421.

[0045] By setting the automatic equipment of double ball of safety belt retractor elbow pipe as including erect on platform and the assembly of double ball 41 and plastic part 42 One double ball profiled piece assembly mechanism 1,And erect on platform and the assembly of profiled piece 4 on elbow pipe 3 One elbow pipe assembly mechanism 2,Double ball 41 and plastic part 42 are fed and accurately assembled in the double ball profiled piece assembly mechanism 1, to complete profiled piece 4 assembly step, then the assembled profiled piece 4 is conveyed to elbow pipe assembly mechanism 2 by the double ball profiled piece assembly mechanism 1, and then make elbow pipe assembly mechanism 2 assemble profiled piece 4 on elbow pipe 3, complete entire assembly step, the whole process is high degree of automation, can correspond to double ball 41 and plastic part 42 rotation and place in elbow pipe 3, save time and effort, effectively improve production efficiency.

[0046] The double ball special-shaped part assembling mechanism 1 is provided with a double ball feeding assembly 11, a positioning plastic part feeding assembly 12 and a special-shaped part assembling assembly 13 arranged on the platform. The upper end of the double ball 41 is formed with a plastic part mounting groove 412 for mounting the plastic part 42. The lower end surface of the plastic part 42 is formed with a plastic part penetrating mounting column 421 embedded in the through hole 411. The double ball feeding assembly 11 feeds and positionally calibrates the double ball 41 and then conveys the calibrated double ball 41 to the special-shaped part assembling assembly 13. At the same time, the positioning plastic part feeding assembly 12 feeds and positionally calibrates the plastic part 42 and then conveys the calibrated plastic part 42 to the double ball 41 on the special-shaped part assembling assembly 13 so that the plastic part 42 is aligned with the plastic part mounting groove 412 on the double ball 41. The plastic part penetrating mounting column 421 on the plastic part 42 penetrates through the through hole 411, thereby realizing the mounting of the plastic part 42 on the double ball 41 and completing the assembling of the special-shaped part 4. The whole process is highly automated and can correspondingly feed the double ball 41 and the plastic part 42, detect the feeding, correct the positions of the double ball 41 and the plastic part 42 and automatically mount the plastic part 42 on the double ball 41, thereby saving time and effort and effectively improving the production efficiency.

[0047] The double ball feeding assembly 11 is provided with a double ball vibrating disc 111 arranged on the platform, a double ball material channel 112 connected to the double ball vibrating disc 111 at one end, a double ball feeding detection rotating platform 113 arranged on the platform and opposite to the other end of the double ball material channel 112, a double ball material taking manipulator 114 arranged on the platform and a double ball feeding detection column 115 arranged on the double ball material taking manipulator 114. One end of the double ball 41 is formed with a through hole 411 for inserting the double ball feeding detection column 115. The double ball 41 is inserted into the double ball vibrating disc 111 and then conveyed to the double ball feeding detection rotating platform 113 through the double ball material channel 112 connected to the double ball vibrating disc 111. The double ball material taking manipulator 114 is started to drive the double ball feeding detection column 115 arranged thereon to move downward, thereby making the double ball feeding detection column 115 penetrate into the through hole 411 to correct the position of the double ball 41. If the double ball feeding detection column 115 cannot penetrate into the through hole 411, the double ball feeding detection rotating platform 113 is started to make the double ball feeding detection rotating platform 113 drive the double ball 41 thereon to flip transversely. The double ball material taking manipulator 114 is started again to drive the double ball feeding detection column 115 to press downward until the double ball feeding detection column 115 penetrates through the through hole 411 of the double ball. The double ball material taking manipulator 114 clamps and conveys the double ball 41 corrected and positioned to the special-shaped part assembling assembly 13 for mounting. The whole process is highly automated and accurately calibrates the double ball, thereby improving the production efficiency.

[0048] The specific way of the double ball loading detection column 115 feeding back the position of the double ball 41 is that a proximity sensor is arranged on the double ball loading detection column 115, the proximity sensor detects the height of the double ball loading detection column 115, and feeds back the detected structure to the external control mechanism, so that the external control mechanism controls the double ball taking manipulator 114 to convey away the double ball 41 in the correct position or controls the double ball loading detection rotating platform 113 to rotate the double ball 41 laterally to return to the position.

[0049] The specific structure of the double ball loading detection rotating platform 113 is shown in Figures 1 to 4 and Figures 7 to 9 The double ball loading detection rotating platform 113 includes a double ball loading detection rotating support 1131 arranged on the platform, a double ball loading detection rotating motor 1132 arranged on the double ball loading detection rotating support 1131, and a double ball loading detection seat 1133 arranged on the upper end of the output shaft of the double ball loading detection rotating motor 1132 and used for placing the double ball. The double ball loading detection rotating support 1131 is used for supporting the double ball loading detection rotating motor 1132 to work and ensure the normal operation of the mechanism. The double ball 41 enters the double ball loading detection seat 1133 from the double ball channel 112 and is fixed and limited by the double ball loading detection seat 1133, so as to prevent the problem of deviation of the double ball 41 during detection, which leads to inaccurate detection and further leads to the case that the double ball taking manipulator 114 cannot accurately convey the double ball 41, which is not conducive to production. When the double ball loading detection column 115 cannot penetrate into the penetration hole 411, the double ball loading detection rotating motor 1132 is started to drive the double ball loading detection seat 1133 arranged thereon to rotate, so that the double ball 41 placed on the double ball loading detection seat 1133 is rotated laterally to return to the position. The whole process has high automation degree, does not need manpower, saves time and effort, and the rotation range can be controlled by the external control mechanism, which further accurately calibrates the double ball 41 and effectively improves the production efficiency.

[0050] The specific way of fixing and limiting the double ball 41 placed in the double ball loading detection seat 1133 is shown in Figures 1 to 4 and Figures 7 to 9 The double ball loading detection seat 1133 has a double ball loading detection limiting seat 11331 protruding upward in the middle, the double ball loading detection limiting seat 11331 has a double ball loading detection limiting groove 11332 recessed downward in the middle and used for placing the double ball, and the double ball 41 is placed in the double ball loading detection limiting groove 11332 from the double ball channel 112 and is resisted and limited by the periphery of the double ball loading detection limiting seat 11331, so as to effectively prevent the problem of deviation of the double ball 41 during detection, which leads to inaccurate detection and further leads to the case that the double ball taking manipulator 114 cannot accurately convey the double ball 41, which is not conducive to production.

[0051] In order to further limit the double ball 41, as shown in Figures 1 to 4 and Figures 7 to 9 The double ball feeding detection rotary platform 113 further comprises a double ball feeding detection limiting block 1134 arranged outside the double ball feeding detection limiting seat 11331. The double ball feeding detection limiting block 1134 is a cuboid, and one end thereof is pressed against the double ball feeding channel 112, so that the double ball feeding detection limiting block 1134 limits the rotation of the double ball feeding detection limiting seat 11331, preventing the double ball feeding detection limiting seat 11331 from being displaced during being driven by the double ball feeding detection rotary motor 1132, thereby causing inaccurate detection of the double ball 41 placed therein. Preferably, the height of the double ball feeding detection limiting block 1134 is higher than the height of the double ball feeding detection limiting seat 11331, thereby effectively preventing the double ball 41 from being displaced and falling off from above during being driven to rotate laterally.

[0052] Preferably, in order to further improve the detection efficiency of the double ball 41, as shown in Figure 8 The double ball feeding assembly 11 further comprises a double ball detection limiting assembly 1135 arranged on both sides of the double ball feeding detection rotary platform 113, respectively. The double ball detection limiting assembly 1135 comprises a double ball detection limiting support 11351 arranged on the platform, and at least one double ball detection piece 11352 arranged on the double ball detection limiting support 11351. The double ball detection piece 11352 detects the double ball on the double ball feeding detection limiting groove 11332. The double ball detection limiting support 11351 supports the double ball detection piece 11352. The double ball detection piece 11352 extends into the double ball feeding detection limiting groove 11332 through the double ball feeding detection limiting block 1134 to detect the side edge of the double ball 41 therein, and transmits the detection information to the external control mechanism, so that the control mechanism obtains the accurate position of the double ball 41 from the information of the double ball detection piece 11352 and the proximity sensor, thereby facilitating the external control mechanism to return the double ball 41 to the original position.

[0053] Preferably, the double ball detection piece 11352 is a reflected light sensor, which is convenient to install and align the optical path during use, is not affected by the shape, color and material of the object to be detected, and is easy to use.

[0054] The specific manner in which the double ball 41 is detected by the double ball detection piece 11352 is as shown in Figure 2 and Figure 4 and Figures 7 to 9As shown, two ends of the double ball 41 are respectively formed with a detection hole 413 perpendicular to the through hole 411, and two ends of the double ball loading detection limiting groove 11332 are respectively formed with a double ball detection channel 113321 in the same radial direction of the detection hole 413 and for the double ball detection piece 11352 to pass through. If the light of the double ball detection piece 11352 passes through the double ball detection channel 113321 to reach the detection hole 413, the position of the double ball 41 is correct. If the light of the double ball detection piece 11352 passes through the double ball detection channel 113321 to reach the side wall of the double ball 41, the position of the double ball 41 is problematic, and the external control mechanism controls the double ball loading detection rotating platform 113 to adjust and return the position of the double ball 41.

[0055] For the specific structural arrangement of the positioning plastic part loading assembly 12, as shown in the accompanying drawings, Figures 10 to 12 As shown, the positioning plastic part loading assembly 12 includes a plastic part vibrating disc 121 arranged on the platform, a plastic part material channel 122 arranged on the platform and connected to one end of the plastic part vibrating disc 121, a plastic part transposition material channel 123 arranged on the platform and perpendicular to the plastic part material channel 122, a plastic part material taking manipulator 124 arranged on the platform, and a plastic part rotating platform 125 arranged on the platform. The plastic part 42 is placed in the plastic part vibrating disc 121, and is transmitted to the plastic part material channel 122 through the plastic part material channel 122, and is converted from horizontal lateral transmission to horizontal longitudinal transmission through the plastic part transposition material channel 123 arranged perpendicular to the plastic part material channel 122, which is beneficial to save position, and then the plastic part material taking manipulator 124 clamps and transmits the plastic part 42 on the plastic part transposition material channel 123 to the plastic part rotating platform 125 for position calibration, which is beneficial to subsequent installation on the double ball 41.

[0056] For the specific structural arrangement of the plastic part rotating platform 125, as shown in the accompanying drawings, Figures 10 to 12As shown, the plastic part rotating platform 125 includes a plastic part rotating support 1251 arranged on the platform, a plastic part rotating drive motor 1252 arranged on one end of the plastic part rotating support 1251, a plastic part rotating drive rack 1253 arranged on the output shaft of the plastic part rotating drive motor 1252, a plastic part rotating gear 1254 rotatably arranged on the other end of the plastic part rotating support 1251 and engaged with the rack of the plastic part rotating drive rack 1253, and a plastic part rotating seat 1255 arranged on the plastic part rotating gear 1254. The plastic part rotating support 1251 supports the plastic part rotating drive motor 1252, the plastic part rotating drive rack 1253, the plastic part rotating gear 1254, the plastic part rotating seat 1255, and the like, to protect the normal operation of the double-ball special-shaped part assembling mechanism 1. The plastic part taking manipulator 124 clamps and conveys the plastic part on the plastic part transposition channel 123 to the plastic part rotating seat 1255. The plastic part rotating drive motor 1252 is started to drive the plastic part rotating drive rack 1253 arranged on the output shaft thereof to move forward or retract, so that the plastic part rotating gear 1254 engaged with the plastic part rotating drive rack 1253 drives the plastic part rotating seat 1255 arranged thereon and the plastic part 42 on the plastic part rotating seat 1255 to rotate, so as to rotate the plastic part 42 on the plastic part rotating seat 1255 to a suitable position, which facilitates the plastic part taking manipulator 124 to clamp and convey the plastic part 42 with the adjusted position and install the plastic part 42 on the double-ball 41 of the special-shaped part assembling assembly 13. The entire process has high automation degree, does not require manpower, saves time and effort, and the amplitude of rotation of the plastic part rotating seat 1255 can be controlled by an external control mechanism, which further accurately calibrates the plastic part and effectively improves the production efficiency.

[0057] The specific way of accurately calibrating the plastic part by the plastic part rotating platform 125 is as follows: Figures 10 to 12As shown, the plastic part rotating platform 125 further comprises a plastic part limiting block 1256 arranged outside the plastic part rotating seat 1255, and a plastic part detecting member 1257 arranged on both sides of the plastic part limiting block 1256 and extending into the plastic part limiting block 1256 and the plastic part rotating seat 1255 to align the plastic part. The plastic part limiting block 1256 is sleeved outside the plastic part rotating seat 1255, and its height is higher than the total height of the plastic part rotating seat 1255 and the plastic part placed in the plastic part rotating seat 1255, thereby effectively preventing the plastic part 42 from shifting or falling off from above or the side during detection and rotation. The plastic part detecting member 1257 extends into the plastic part limiting block 1256 to detect the plastic part 42 and feed back the detection result to the external control mechanism. The external control mechanism judges the detection result and controls the plastic part rotating drive motor 1252 to drive the plastic part rotating drive rack 1253 to rotate the plastic part rotating gear 1254, so as to rotate the plastic part 42 to the appropriate angle for clamping and installation, complete accurate calibration and homing, and facilitate subsequent installation.

[0058] For the specific structure of the special-shaped part assembly component 13, as shown in Figure 13 As shown, the special-shaped part assembly component 13 comprises a special-shaped part assembly support 131 arranged on the platform, a special-shaped part assembly rotary cylinder 132 arranged on the special-shaped part assembly support, a special-shaped part assembly rotating plate 133 arranged on the special-shaped part assembly rotary cylinder 132, and a special-shaped part assembly seat 134 symmetrically arranged on the special-shaped part assembly rotating plate 133. The well-calibrated and homed double ball 41 is placed in a group of special-shaped part assembly seats 134 by the double ball taking mechanical arm 114. The special-shaped part assembly rotary cylinder 132 is started to drive the special-shaped part assembly rotating plate 133 arranged on the output shaft and the two groups of special-shaped part assembly seats 134 on the special-shaped part assembly rotating plate 133 to rotate, so that the special-shaped part assembly seat 134 in which the double ball has been placed is located below the plastic part taking mechanical arm 124 that has clamped the plastic part conveyed from the plastic part conveying mechanism. The plastic part taking mechanical arm 124 moves downward to align the plastic part on the double ball with the plastic part installation slot 412 on the double ball, and the plastic part penetrating installation column 421 on the plastic part 42 is pressed downward to align the through hole 411, so that the plastic part is installed on the double ball 41, completing the entire installation process of the special-shaped part 4. The assembled special-shaped part 4 is rotated to the initial position by the special-shaped part assembly rotary cylinder 132 and is conveyed to the elbow pipe assembly mechanism 2 by the double ball taking mechanical arm 114 to assemble the elbow pipe 3. The entire process is highly automated and does not require manual detection and assembly, saving time and effort and effectively improving production efficiency. By arranging the special-shaped part assembly seats 134 symmetrically on the special-shaped part assembly rotating plate 133, the two groups of special-shaped part assembly seats 134 operate simultaneously, thereby improving the production efficiency of the double ball special-shaped part assembly mechanism 1.

[0059] Preferably, in order to improve the alignment of the plastic part 42 to the double ball 41 by the plastic part taking manipulator 124, a sensor can also be arranged on the plastic part taking manipulator 124, so as to facilitate the external control mechanism to control the plastic part taking manipulator 124 to accurately install the plastic part 42 on the double ball 41, and improve the installation accuracy.

[0060] For the specific structure of the elbow pipe assembling mechanism 2, as shown in Figures 14 to 16 The elbow pipe assembling mechanism 2 includes a special-shaped part rotating clamping assembly 21 arranged on the platform, and an elbow pipe fixing assembly 22 arranged on the platform and opposite to the special-shaped part rotating clamping assembly 21. An external conveying mechanism places the elbow pipe 3 into the elbow pipe fixing assembly 22 to realize the fixing and limiting of the elbow pipe. At the same time, the special-shaped part rotating clamping assembly 21 clamps and conveys the special-shaped part 4 clamped by the double ball taking manipulator 114 to the elbow pipe fixing assembly 22 and rotates and assembles the special-shaped part 4 on the elbow pipe 3.

[0061] For the specific structure of the special-shaped part rotating clamping assembly 21, as shown in Figures 14 to 15 The special-shaped part rotating clamping assembly 21 includes a special-shaped part rotating bracket 211 arranged on the platform, a special-shaped part rotating cylinder 212 arranged on the special-shaped part rotating bracket 211, a special-shaped part telescopic cylinder 213 arranged on the output shaft of the special-shaped part telescopic cylinder 213 and the output shaft of the special-shaped part rotating cylinder 212, and a special-shaped part clamping piece 214 arranged on the output shaft of the special-shaped part telescopic cylinder 213 and the output shaft of the special-shaped part rotating cylinder 212. The double ball taking manipulator 114 places the assembled special-shaped part 4 on the special-shaped part clamping piece 214 of the special-shaped part rotating clamping assembly 21. Then the special-shaped part telescopic cylinder 213 is started to drive the special-shaped part clamping piece 214 to push the special-shaped part 4 to the one end of the elbow pipe in the elbow pipe fixing assembly 22. The special-shaped part rotating cylinder 212 is started to drive the special-shaped part clamping piece 214 to rotate into the elbow pipe 3, so as to complete the whole assembly. The automation degree is high, and the production efficiency is effectively improved.

[0062] For the specific operation mode of the elbow pipe fixing assembly 22, as shown in Figure 14 and Figure 16As shown, the pipe fixing assembly 22 further comprises a special-shaped member sliding table 215 arranged on the platform, which comprises a special-shaped member sliding plate 2151 arranged on the platform, special-shaped member sliding rails 2152 symmetrically arranged on both sides of one end of the special-shaped member sliding plate 2151, special-shaped member sliding blocks 2153 slidingly arranged on the special-shaped member sliding rails 2152 and fixed to the special-shaped member rotating support 211 at the upper end, and a special-shaped member rotating support frame 2154 arranged on the other end of the special-shaped member sliding plate 2151. The special-shaped member telescopic cylinder 213 is arranged on the side of the special-shaped member rotating support frame 2154, and the output shaft of the special-shaped member rotating cylinder 212 is connected with the special-shaped member clamping member 214 by penetrating through the special-shaped member rotating support frame 2154. When the special-shaped member telescopic cylinder 213 is started, the special-shaped member telescopic cylinder 213 presses on the special-shaped member clamping member 214, pushes the special-shaped member clamping member 214 towards the direction of the pipe 3, at this time, the special-shaped member clamping member 214 drives the special-shaped member 4 rotating cylinder 212 connected thereto to move forward, so that the special-shaped member rotating cylinder 212 drives the special-shaped member sliding block 2153 arranged thereon to slide on the special-shaped member sliding rail 2152, thereby realizing the position following change of the special-shaped member rotating cylinder 212. For the resetting mode of the special-shaped member rotating cylinder 212, the end of the special-shaped member sliding plate 2151 close to the resetting of the special-shaped member rotating cylinder 212 is provided with a telescopic cylinder connected to the special-shaped member rotating support 211. When the special-shaped member rotating cylinder 212 is driven to move, the telescopic cylinder is also started to push the special-shaped member rotating cylinder 212 out, and after the assembly is completed, the telescopic cylinder drives the special-shaped member rotating support 211 to retract, thereby realizing the resetting of the special-shaped member rotating cylinder 212.

[0063] As shown in Figure 14 and Figure 15 , the specific mode of keeping the special-shaped member clamping member 214 connected with the special-shaped member telescopic cylinder 213, a connecting plate can be arranged on the output shaft of the special-shaped member telescopic cylinder 213, and a shaft or a column or the like is arranged on the end of the special-shaped member clamping member 214 close to the special-shaped member telescopic cylinder 213. An arc-shaped movable groove is formed on the connecting plate, when the special-shaped member rotating cylinder 212 drives the special-shaped member clamping member 214 to rotate, the shaft or the column or the like moves in the movable groove, thereby realizing the rotation while ensuring the connection between the special-shaped member clamping member 214 and the special-shaped member telescopic cylinder 213. It can also be other connection modes, the above mode is only a preferred solution, and the specific mode can be set according to the actual situation.

[0064] For the specific structure of the special-shaped member clamping member 214, as shown in Figure 14 and Figure 15As shown, the profiled part holder 214 is L-shaped as a whole, one end of which is arranged on the output shaft of the profiled part telescopic cylinder 213 and the output shaft of the profiled part rotating cylinder 212, and the other end is provided with a profiled part clamping groove 2141 for placing the profiled part. The double-ball taking mechanical arm 114 delivers the assembled profiled part 4 into the profiled part clamping groove 2141, so as to clamp and fix the profiled part 4. The other end of the profiled part holder 214 is arranged on the output shaft of the profiled part telescopic cylinder 213 and the output shaft of the profiled part rotating cylinder 212, so as to ensure the normal driving of the profiled part 4.

[0065] For the specific way of mounting the profiled part 4 on the elbow pipe 3, as shown in Figure 14 and Figure 15 As shown, one end of the plastic part 42 is formed with a profiled part embedding fixing column 422 which can be embedded into one end of the elbow pipe 3. An elbow pipe fixing hole 31 is formed on the wall of one end of the elbow pipe 3 for embedding and fixing the profiled part embedding fixing column 422. The profiled part telescopic cylinder 213 drives the profiled part holder 214 to send the profiled part to one end of the elbow pipe 3, and then the profiled part rotating cylinder 212 drives the profiled part holder 214 to rotate the profiled part into one end of the elbow pipe 3, so that the profiled part embedding fixing column 422 of the plastic part 42 in the profiled part 4 is opposite to the position of the elbow pipe fixing hole 31. Then the profiled part rotating cylinder 212 and the profiled part telescopic cylinder 213 are simultaneously matched, so that the profiled part embedding fixing column 422 of the plastic part 42 in the profiled part 4 is rotated into the elbow pipe fixing hole 31 of the elbow pipe 3, thereby stably mounting the profiled part 4 in the elbow pipe 3, achieving the purpose of mounting the profiled part 4 on the elbow pipe 3. By matching the profiled part embedding fixing column 422 and the elbow pipe fixing hole 31, the plastic part 42 drives the double ball 41 to be fixed on the elbow pipe 3, preventing the displacement of the double ball 41 in the elbow pipe 3 from causing the problem that the subsequent safety belt cannot be locked, and improving the reliability of the safety belt.

[0066] For the specific structure of the elbow pipe fixing assembly 22, as shown in Figure 14 and Figure 16 As shown, the elbow pipe fixing assembly 22 includes an elbow pipe limiting table 221 arranged on the platform and provided with the elbow pipe, and at least one elbow pipe limiting structure 222 arranged outside the elbow pipe limiting table 221. The elbow pipe 3 is delivered into the elbow pipe limiting table 221 by an external conveying mechanism, and the elbow pipe limiting structure 222 protrudes from the side of the elbow pipe limiting table 221, so as to limit the elbow pipe 3 in the elbow pipe limiting table 221, achieving the fixation of the elbow pipe 3 and preventing the displacement or falling of the elbow pipe 3 from the side.

[0067] For the specific structure of the elbow pipe limiting structure 222, as shown in Figure 14 and Figure 16As shown, the elbow limiting structure 222 includes an elbow limiting telescopic air cylinder 2221 arranged around the elbow limiting table 221, an elbow limiting fixed block 2222 fixed to the side of the elbow limiting table 221, and an elbow limiting block 2223 arranged on the output shaft of the elbow limiting telescopic air cylinder 2221 and abutting against the side of the elbow 3. After the elbow 3 is placed in the elbow limiting table 221, the elbow limiting telescopic air cylinder 2221 is started to drive the elbow limiting block 2223 arranged thereon to pass through the elbow limiting fixed block 2222 and abut against the side of the elbow 3, thereby achieving the fixed limiting of the elbow 3 and preventing the elbow 3 from being displaced or falling off from the side. By arranging the elbow limiting fixed block 2222, the elbow limiting block 2223 passing through the elbow limiting fixed block 2222 is limited by the elbow limiting fixed block 2222, which effectively prevents the elbow limiting block 2223 from being displaced during the driving process by the elbow limiting telescopic air cylinder 2221, thereby preventing the accurate abutting and limiting of the side of the elbow 3.

[0068] In order to further improve the yield of finished products, as shown in Figure 14 and Figure 16 As shown, the elbow fixing assembly 22 further includes an elbow detection structure 223 arranged on the platform. The elbow detection structure 223 includes an elbow detection support 2231 arranged on the platform and inclined towards the special-shaped part 4 on the elbow, an elbow detection sliding table 2232 arranged on the elbow detection support 2231 and opposite to the special-shaped part 4 on the elbow 3, and an elbow detection proximity sensor 2233 arranged on the elbow detection sliding table 2232. When the special-shaped part 4 is installed on the elbow 3, the elbow detection sliding table 2232 is started to drive the elbow detection proximity sensor 2233 arranged thereon to approach the position of the special-shaped part embedding fixing column 422, so that the elbow detection proximity sensor 2233 detects the special-shaped part embedding fixing column 422 and feeds back the detected information to the external control mechanism. The external control mechanism compares the information to know whether the special-shaped part 4 is installed on the elbow 3, thereby distinguishing whether it is a good product or not. The bad product is sent to the bad product collecting box for subsequent repair, and the good product is continuously conveyed to the next step, thereby further improving the yield of finished products and improving the production efficiency. The proximity sensor is a conventional component in the art, and its structure and principle are prior art, so they are not described in detail in this embodiment.

[0069] It should be noted that the automatic double-ball equipment for the safety belt retractor elbow pipe is improved in the specific structure, and the specific control mode is not the innovation point of the utility model. For the telescopic air cylinder, sliding table, rotary air cylinder, sliding rail, sliding block, proximity sensor, sensor and other components involved in the utility model, they can be general standard components or components known by those skilled in the art, and the structure, principle and control mode are known by those skilled in the art through technical manuals or obtained through conventional experimental methods.

[0070] The above is only a preferred embodiment of the utility model, and does not limit the technical range of the utility model in any way, so other structures obtained by using the same or similar technical features as the above-mentioned embodiments of the utility model are within the protection scope of the utility model.

Claims

1. An automatic double-ball loading device for a seat belt retractor bend tube, comprising a bend tube and a shaped component that can be installed on one end of the bend tube, wherein the shaped component includes a double ball and a plastic component disposed on the double ball, characterized in that: It also includes a double-ball irregular part assembly mechanism mounted on a platform for assembling double balls and plastic parts, and a bent pipe assembly mechanism mounted on a platform for assembling irregular parts onto bent pipes; the double-ball irregular part assembly mechanism includes a double-ball feeding component mounted on the platform, a positioning plastic part feeding component mounted on the platform, and an irregular part assembly component mounted on the platform; the double-ball feeding component includes a double-ball vibrating plate mounted on the platform, a double-ball material channel mounted on the platform and connected at one end to the double-ball vibrating plate, a double-ball feeding detection rotating platform mounted on the platform and facing the other end of the double-ball material channel, a double-ball picking robot mounted on the platform, and a double-ball feeding detection column mounted on the double-ball picking robot. A through hole is formed on one end of the double balls for the double-ball feeding detection column to be inserted. A plastic part mounting groove is formed on the upper end of the double balls for the plastic parts to be placed and installed. A plastic part through mounting column embedded in the through hole is formed on the lower end surface of the plastic parts.

2. The automatic double-ball loading device for the seat belt retractor bending tube according to claim 1, characterized in that: The dual-ball loading and detection rotary platform includes a dual-ball loading and detection rotary support mounted on the platform, a dual-ball loading and detection rotary motor mounted on the dual-ball loading and detection rotary support, and a dual-ball loading and detection seat mounted on the upper end of the output shaft of the dual-ball loading and detection rotary motor for inserting dual balls; the dual-ball loading and detection seat has an upwardly protruding dual-ball loading and detection limiting seat in the middle, and a downwardly recessed dual-ball loading and detection limiting groove in the middle for inserting dual balls.

3. The automatic double-ball loading device for the seat belt retractor bending tube according to claim 2, characterized in that: The dual-ball feeding assembly further includes a dual-ball detection limiting assembly respectively disposed on both sides of the detection rotating platform. The dual-ball detection limiting assembly includes a dual-ball detection limiting bracket mounted on the platform and at least one dual-ball detection element disposed on the dual-ball detection limiting bracket. The dual-ball detection element detects the dual balls on the dual-ball feeding detection limiting groove. A detection hole perpendicular to the through hole is formed at each end of the dual balls. A dual-ball detection channel located in the same radial direction as the detection hole and allowing the dual-ball detection element to pass through is formed at each end of the dual-ball feeding detection limiting groove.

4. The automatic double-ball loading device for the seat belt retractor bending tube according to claim 1, characterized in that: The positioning plastic part feeding assembly includes a plastic part vibratory plate mounted on a platform, a plastic part feed channel mounted on the platform and connected at one end to the plastic part vibratory plate, a plastic part repositioning feed channel mounted on the platform and perpendicular to the plastic part feed channel, a plastic part picking robot mounted on the platform, and a plastic part rotating platform mounted on the platform.

5. The automatic double-ball loading device for the seat belt retractor bending tube according to claim 1, characterized in that: The irregular part assembly assembly includes an irregular part assembly bracket mounted on a platform, an irregular part assembly rotary cylinder mounted on the irregular part assembly bracket, an irregular part assembly rotating plate mounted on the irregular part assembly rotary cylinder, and an irregular part assembly seat symmetrically mounted on the irregular part assembly rotating plate.

6. The automatic double-ball loading device for the bend tube of the seat belt retractor according to claim 1, characterized in that: The pipe bending assembly mechanism includes a shaped part rotating clamping assembly mounted on a platform, and a pipe bending fixing assembly mounted on the platform and facing the shaped part rotating clamping assembly.

7. The automatic double-ball loading device for the bend tube of the seat belt retractor according to claim 6, characterized in that: The irregular part rotating clamping assembly includes an irregular part rotating bracket mounted on a platform, an irregular part rotating cylinder mounted on the irregular part rotating bracket, an irregular part telescopic cylinder mounted on the side of the output shaft of the irregular part rotating cylinder, an irregular part clamping member mounted on the output shaft of the irregular part telescopic cylinder and the output shaft of the irregular part rotating cylinder, and an irregular part sliding table mounted on the platform. The irregular part sliding table includes an irregular part sliding plate mounted on the platform, irregular part slide rails symmetrically arranged on both sides of one end of the irregular part sliding plate, an irregular part slider slidably mounted on the irregular part slide rails and fixed at its upper end to the irregular part rotating bracket, and an irregular part rotating support frame mounted on the other end of the irregular part sliding plate. The irregular part telescopic cylinder is located on the side of the irregular part rotating support frame, and the output shaft of the irregular part rotating cylinder passes through the irregular part rotating support frame and connects to the irregular part clamping member.

8. The automatic double-ball loading device for the bend tube of the seat belt retractor according to claim 6, characterized in that: The pipe fixing assembly includes a pipe limiting platform mounted on a platform for inserting the pipe, and at least one pipe limiting structure disposed around the outside of the pipe limiting platform.

9. The automatic double-ball loading device for the bend tube of the seat belt retractor according to claim 8, characterized in that: The bend limiting structure includes a bend limiting telescopic cylinder disposed around the bend limiting platform, a bend limiting fixing block fixed to the side of the bend limiting platform, and a bend limiting block disposed on the output shaft of the bend limiting telescopic cylinder and pressing against the side of the bend.

10. The automatic double-ball loading device for the bend tube of the seat belt retractor according to claim 8, characterized in that: The pipe bending fixing assembly also includes a pipe bending detection structure mounted on a platform. The pipe bending detection structure includes a pipe bending detection bracket mounted on the platform and inclined toward the irregular part on the pipe bending, a pipe bending detection slide mounted on the pipe bending detection bracket and facing the irregular part on the pipe bending, and a pipe bending detection proximity sensor mounted on the pipe bending detection slide.