Double-ball special-shaped part assembling mechanism for safety belt retractor

Abstract

The utility model discloses a double-ball special-shaped part assembling mechanism for a safety belt retractor. 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 with one end connected to the double-ball vibration disc, a double-ball feeding detection rotating platform right opposite to the other end of the double-ball material channel, a double-ball taking mechanical arm and a double-ball feeding detection column arranged on the double-ball taking mechanical arm, and a through hole allowing the double-ball feeding detection column to be inserted is formed in one end of each double ball. A plastic part mounting groove for placing and mounting the plastic part is formed in the upper ends of the double balls; and a plastic part penetrating mounting column embedded into the penetrating hole is formed on the lower end surface of the plastic part. The automatic assembling machine is high in automation degree, can correspondingly carry out feeding detection on the double balls and the plastic parts, correct the positions of the double balls and the plastic parts and automatically install the plastic parts on the double balls, manual detection and assembling are not needed, time and labor are saved, and the production efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a safety belt technical field especially relates to a kind of assembling mechanism for double-ball special-shaped part in safety belt winder. BACKGROUND

[0002] Vehicle safety belt is an important component in vehicle occupant restraint system, especially in traffic accident, can provide protection for vehicle occupants, avoid the injury of occupant or reduce the injury to the minimum degree. With the increasing of vehicle population, vehicle user's safety performance requirement of vehicle safety belt is higher and higher.

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

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

[0005] Spindle is a component of safety belt, especially the assembly of special-shaped body inside spindle is very complex, in the prior art, automatic assembly of double ball cannot be realized, and detection of double ball assembly effect is not provided, if detection is needed, only manual detection can be carried out, which increases detection time and reduces the working efficiency of the whole production process. UTILITY MODEL CONTENT

[0006] In view of the above-mentioned defects, the utility model aims at providing a double-ball special-shaped part assembling mechanism in safety belt winder, which has high automation degree, can correspondingly detect the feeding of double ball and plastic part, correct the position of double ball and plastic part, and automatically install plastic part on double ball, without manual detection and assembly, saving time and effort, and effectively improving production efficiency.

[0007] The utility model discloses a technical scheme which is adopted to achieve the above-mentioned purpose is:

[0008] A double-ball special-shaped part assembling mechanism for a seat belt retractor, comprising a double-ball feeding assembly arranged on a platform, a positioning plastic part feeding assembly arranged on the platform, and a special-shaped part assembling assembly arranged on the platform.

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

[0010] As a further improvement of the utility model, the double-ball feeding assembly further comprises a double-ball detection limiting assembly arranged on both sides of the detection rotating platform respectively, the double-ball detection limiting assembly comprising a double-ball detection limiting support arranged on the platform and at least one double-ball detection part arranged on the double-ball detection limiting support, and the double-ball detection part being used for detecting the double ball on the double-ball feeding detection limiting groove.

[0011] As a further improvement of the utility model, the two ends of the double ball are respectively provided with a detection hole perpendicular to the through hole, and the two ends of the double-ball feeding detection limiting groove are respectively provided with a double-ball detection channel located on the same radial direction of the detection hole and used for the double-ball detection part to pass through.

[0012] As a further improvement of the utility model, the positioning plastic part feeding assembly comprises a plastic part vibrating disc arranged on the platform, a plastic part material channel connected to the plastic part vibrating disc at one end and arranged on the platform, a plastic part transposition material channel perpendicular to the plastic part material channel and arranged on the platform, a plastic part material taking manipulator arranged on the platform, and a plastic part rotating platform arranged on the platform.

[0013] As a further improvement of the utility model, the plastic part rotating platform further comprises a plastic part limiting block arranged outside the plastic part rotating seat, and a plastic part detection piece arranged on both sides of the plastic part limiting block and extending into the plastic part limiting block and the plastic part rotating seat to align the plastic part.

[0014] As a further improvement of the utility model, the plastic part rotating platform further comprises a plastic part limiting block arranged outside the plastic part rotating seat, and a plastic part detection piece arranged on both sides of the plastic part limiting block and extending into the plastic part limiting block and the plastic part rotating seat to align the plastic part.

[0015] As a further improvement of the utility model, the special-shaped part assembling assembly comprises a special-shaped part assembly support arranged on the platform, a special-shaped part assembly rotary cylinder arranged on the special-shaped part assembly support, a special-shaped part assembly rotating plate arranged on the special-shaped part assembly rotary cylinder, and a special-shaped part assembling seat symmetrically arranged on the special-shaped part assembly rotating plate.

[0016] The utility model discloses the beneficial effects are:

[0017] By setting the double-ball special-shaped part assembling mechanism as comprising a double-ball feeding assembly arranged on the platform, a positioning plastic part feeding assembly arranged on the platform and a special-shaped part assembling assembly arranged on the platform, 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 the calibrated double ball is conveyed 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 the calibrated plastic part is conveyed 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 assembly of the special-shaped part. The whole process has high automation degree, and can correspondingly feed the double ball and the plastic part, detect the double ball and the plastic part, correct the positions of the double ball and the plastic part, and automatically mount the plastic part on the double ball, without manual detection and assembly, saving time and effort, and effectively improving the production efficiency.

[0018] 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 and positioned 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.

[0019] 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

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the double ball;

[0022] Figure 3 It is a whole schematic diagram of the double ball feeding assembly;

[0023] Figure 4 It is a structural schematic diagram of the double ball feeding detection rotating platform, the double ball taking manipulator and the double ball feeding detection column;

[0024] Figure 5 It is a structural schematic diagram of the double ball feeding detection seat;

[0025] Figure 6 It is a whole schematic diagram of the positioning plastic part feeding assembly;

[0026] Figure 7 It is a structural schematic diagram of the plastic part;

[0027] Figure 8 It is a structural schematic diagram of the plastic part taking manipulator and the plastic part rotating platform;

[0028] Figure 9It is a local structure diagram of the rotating platform inside the plastic part;

[0029] Figure 10 It is a structure diagram of the plastic part mounted on the double ball;

[0030] Figure 11 It is a structure diagram of the special-shaped part assembly component;

[0031] In the figure: 1, double ball feeding assembly; 11, double ball vibrating disc; 12, double ball material channel; 13, double ball feeding detection rotating platform; 131, double ball feeding detection rotating support; 132, double ball feeding detection rotating motor; 133, double ball feeding detection seat; 1331, double ball feeding detection limiting seat; 1332, double ball feeding detection limiting groove; 13321, double ball detection channel; 134, double ball feeding detection limiting block; 135, double ball detection limiting assembly; 1351, double ball detection limiting support; 1352, double ball detection part; 14, double ball material taking manipulator; 15, double ball feeding detection column; 2, positioning plastic part feeding assembly; 21, plastic part vibrating disc; 22, plastic part material channel; 23, plastic part transposition material channel; 24, plastic part material taking manipulator; 25, plastic part rotating platform; 251, plastic part rotating support; 252, plastic part rotating drive motor; 253, plastic part rotating rack; 254, plastic part rotating gear; 255, plastic part rotating seat; 256, plastic part limiting block; 257, plastic part detection part; 3, special-shaped part assembly component; 31, special-shaped part assembly support; 32, special-shaped part assembly rotary cylinder; 33, special-shaped part assembly rotating plate; 34, special-shaped part assembly seat; 4, double ball: 41, through hole; 42, plastic part mounting groove; 43, detection hole; 5, plastic part; 51, plastic part through mounting column. DETAILED DESCRIPTION

[0032] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined purpose, the specific implementation manner of the utility model will be described in detail below in combination with the drawings and preferred embodiments.

[0033] In the description of the utility model, it should be understood that the directions or position relationships indicated by the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the directions or position relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model in that the indicated devices or elements must have a specific direction, be constructed and operated in a specific direction.

[0034] In addition, the terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" are only used for descriptive purpose 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", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more than two, unless otherwise specifically defined.

[0035] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] Please refer to Figures 1 to 11 The embodiment of the present application provides a kind of double ball special-shaped part assembly mechanism in safety belt reel, including being arranged in platform one double ball feeding assembly 1, being arranged in platform one positioning plastic piece feeding assembly 2, setting platform one special-shaped part assembly component 3;The double ball feeding assembly 1 includes erecting in platform one double ball vibration disc 11, erecting in platform and one end is connected to double ball vibration disc 11 one double ball material channel 12, erecting in platform and being opposite to the other end of double ball material channel 12 one double ball feeding detection rotary platform 13, erecting in platform one double ball material taking manipulator 14, be arranged in the double ball material taking manipulator 14 one double ball feeding detection column 15, double ball 4 one end is formed with the through hole 41 for the double ball feeding detection column 15 insertion, double ball 4 upper end is formed with the plastic piece installation groove 42 for plastic piece 5 installation, the lower end surface of plastic piece 5 is formed with the plastic piece through installation column 51 embedded in through hole 41.

[0037] The double ball special-shaped part assembling mechanism is provided with a double ball feeding assembly 1 arranged on a platform, a positioning plastic part feeding assembly 2 arranged on the platform, and a special-shaped part assembling assembly 3 arranged on the platform. An upper end of the double ball 4 is formed with a plastic part mounting groove 42 for mounting the plastic part 5. An under end surface of the plastic part 5 is formed with a plastic part through mounting column 51 embedded in the through hole 41. The double ball feeding assembly 1 feeds and positionally calibrates the double ball and then conveys the calibrated double ball 4 to the special-shaped part assembling assembly 3. Meanwhile, the positioning plastic part feeding assembly 2 feeds and positionally calibrates the plastic part 5 and then conveys the calibrated plastic part 5 to the double ball 4 on the special-shaped part assembling assembly 3 so that the plastic part 5 is aligned with the plastic part mounting groove 42 on the double ball 4. The plastic part through mounting column 51 on the plastic part 5 penetrates through the through hole 41, thereby mounting the plastic part 5 on the double ball 4 and completing the assembling of the special-shaped part. The whole process is highly automated and can feed and detect the double ball 4 and the plastic part 5, correct the positions of the double ball 4 and the plastic part 5, and automatically mount the plastic part 5 on the double ball 4, without manual detection and assembling, thereby saving time and effort and effectively improving the production efficiency.

[0038] The double ball feeding assembly 1 is arranged on the platform and comprises a double ball vibrating disc 11, a double ball material channel 12 connected to the double ball vibrating disc 11, a double ball feeding detection rotating platform 13 opposite to the other end of the double ball material channel 12, a double ball material taking manipulator 14, and a double ball feeding detection column 15 arranged on the double ball material taking manipulator 14. One end of the double ball is formed with a through hole 41 for inserting the double ball feeding detection column 15. The double ball 4 is inserted into the double ball vibrating disc 11 and is conveyed to the double ball feeding detection rotating platform 13 through the double ball material channel 12 connected to the double ball vibrating disc 11. The double ball material taking manipulator 14 is started to drive the double ball feeding detection column 15 arranged thereon to move downward, so that the double ball feeding detection column 15 penetrates into the through hole 41 to correct the position of the double ball 4. If the double ball feeding detection column 15 cannot penetrate into the through hole 41, the double ball feeding detection rotating platform 13 is started to drive the double ball 4 on the double ball feeding detection rotating platform 13 to flip horizontally. The double ball material taking manipulator 14 is started again to drive the double ball feeding detection column 15 to press downward until the double ball feeding detection column 15 penetrates through the through hole 41 of the double ball. The double ball material taking manipulator 14 clamps and conveys the double ball 4 corrected in position to the special-shaped part assembling assembly 3 for mounting. The whole process is highly automated and accurately calibrates the double ball 4, thereby effectively improving the production efficiency.

[0039] The specific way of the double ball loading detection column 15 feeding back the position of the double ball is that a proximity sensor is arranged on the double ball loading detection column 15, the proximity sensor detects the height of the double ball loading detection column 15, and feeds back the detected structure to the external control mechanism, so that the external control mechanism controls the double ball taking manipulator 14 to convey away the double ball 4 in the correct position or controls the double ball loading detection rotating platform 13 to rotate the double ball 4 laterally to return to the position.

[0040] The specific structure of the double ball loading detection rotating platform 13 is shown in the figure, which includes a double ball loading detection rotating support 131 arranged on the platform, a double ball loading detection rotating motor 132 arranged on the double ball loading detection rotating support 131, and a double ball loading detection seat 133 arranged on the upper end of the output shaft of the double ball loading detection rotating motor 132 and used for placing the double ball 4. Figures 1 to 4 The double ball loading detection rotating support 131 is used to support the operation of the double ball loading detection rotating motor 132 to ensure the normal operation of the mechanism. The double ball 4 enters the double ball loading detection seat 133 from the double ball channel 12 and is fixed and limited by the double ball loading detection seat 133 to prevent the double ball 4 from deviating during detection, which causes inaccurate detection and further causes the double ball taking manipulator 14 to fail to accurately convey the double ball 4, which is not conducive to production. When the double ball loading detection column 15 cannot penetrate into the penetration hole 41, the double ball loading detection rotating motor 132 starts to drive the double ball loading detection seat 133 arranged thereon to rotate, so that the double ball 4 placed on the double ball loading detection seat 133 is rotated laterally to return to the position. The whole process is highly automated, does not require manual labor, saves time and effort, and the rotation range can be controlled by an external control mechanism to further accurately calibrate the double ball 4 and effectively improve the production efficiency.

[0041] The specific way of fixing and limiting the double ball placed in the double ball loading detection seat 133 is shown in the figure, which includes a double ball loading detection limiting seat 1331 upwardly protruding in the middle of the double ball loading detection seat 133, and a double ball loading detection limiting groove 1332 downwardly recessed in the middle of the double ball loading detection limiting seat 1331 and used for placing the double ball 4. Figure 5 The double ball is placed in the double ball loading detection limiting groove 1332 from the double ball channel 12 and is resisted and limited by the four sides of the double ball loading detection limiting seat 1331, so as to effectively prevent the double ball 4 from deviating during detection, which causes inaccurate detection and further causes the double ball taking manipulator 14 to fail to accurately convey the double ball 4, which is not conducive to production.

[0042] In order to further limit the double ball, as shown in the figures, Figure 1 and Figures 3 to 4As shown, the double-ball loading and detection rotating platform 13 further comprises a double-ball loading and detection limiting block 134 arranged outside the double-ball loading and detection limiting seat 1331. The double-ball loading and detection limiting block 134 is a cuboid as a whole, and one end thereof is abutted against the double-ball channel 12, so that the double-ball loading and detection limiting block 134 limits the rotation of the double-ball loading and detection limiting seat 1331, and prevents the double-ball loading and detection limiting seat 1331 from being displaced during the driving process by the double-ball loading and detection rotating motor 132, so as to avoid the inaccurate detection of the double ball 4 placed in the double-ball loading and detection limiting seat 1331. Preferably, the height of the double-ball loading and detection limiting block 134 is higher than the height of the double-ball loading and detection limiting seat 1331, so as to effectively prevent the double ball 4 from being displaced and falling off from above during the driving process.

[0043] Preferably, in order to further improve the detection efficiency of the double ball 4, as shown in Figure 1 and Figures 3 to 4 As shown, the double-ball loading assembly 1 further comprises a double-ball detection limiting assembly 135 arranged on both sides of the double-ball loading and detection rotating platform 13, respectively. The double-ball detection limiting assembly 135 comprises a double-ball detection limiting support 1351 arranged on the platform, and at least one double-ball detection member 1352 arranged on the double-ball detection limiting support 1351. The double-ball detection member 1352 detects the double ball on the double-ball loading and detection limiting groove 1332. The double-ball detection limiting support 1351 supports the double-ball detection member 1352. The double-ball detection member 1352 extends into the double-ball loading and detection limiting groove 1332 through the double-ball loading and detection limiting block 134, detects the side edge of the double ball 4 in the double-ball loading and detection limiting groove 1332, and transmits the detection information to the external control mechanism, so that the control mechanism obtains the accurate position of the double ball 4 from the information of the double-ball detection member 1352 and the proximity sensor, and facilitates the homing of the double ball 4 by the external control mechanism.

[0044] Preferably, the double-ball detection member 1352 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 detected object, and is easy to use.

[0045] The specific manner in which the double ball 4 is detected by the double-ball detection member 1352 is as follows: Figure 5As shown, two ends of the double ball 4 are respectively formed with a detection hole 43 perpendicular to the through hole 41, and two ends of the double ball loading detection limiting groove 1332 are respectively formed with a double ball detection channel 13321 which is located in the same radial direction with the detection hole 43 and through which the double ball detection piece 1352 penetrates. If the light of the double ball detection piece 1352 passes through the double ball detection channel 13321 to reach the detection hole 43, the position of the double ball 4 is correct. If the light of the double ball detection piece 1352 passes through the double ball detection channel 13321 to reach the side wall of the double ball, the position of the double ball is problematic, and the external control mechanism controls the double ball loading detection rotating platform 13 to adjust and return the position of the double ball 4.

[0046] For the specific structure of the positioning plastic part loading assembly 2, as shown in the accompanying drawings, Figures 6 to 9 As shown, the positioning plastic part loading assembly 2 includes a plastic part vibrating disc 21 arranged on the platform, a plastic part material channel 22 arranged on the platform and connected to one end of the plastic part vibrating disc 21, a plastic part transposition material channel 23 arranged on the platform and perpendicular to the plastic part material channel 22, a plastic part material taking manipulator 24 arranged on the platform, and a plastic part rotating platform 25 arranged on the platform. The plastic part 5 is placed in the plastic part vibrating disc 21, and is transmitted to the plastic part material channel 22 through the plastic part material channel 22, and the plastic part 5 transmitted horizontally and laterally from the plastic part material channel 22 is converted to be transmitted horizontally and longitudinally through the plastic part transposition material channel 23 arranged perpendicular to the plastic part material channel 22, which is beneficial to save position, and then the plastic part material taking manipulator 24 clamps and transmits the plastic part 5 on the plastic part transposition material channel 23 to the plastic part rotating platform 25 for position calibration, which is beneficial to subsequent installation on the double ball 4.

[0047] For the specific structure of the plastic part rotating platform 25, as shown in the accompanying drawings, Figures 6 to 9As shown, the plastic part rotating platform 25 comprises a plastic part rotating support 251 arranged on the platform, a plastic part rotating drive motor 252 arranged at one end of the plastic part rotating support 251, a plastic part rotating drive rack 253 arranged on the output shaft of the plastic part rotating drive motor 252, a plastic part rotating gear 254 rotatably arranged at the other end of the plastic part rotating support 251 and engaged with the plastic part rotating drive rack 253, and a plastic part rotating seat 255 arranged on the plastic part rotating gear 254. The plastic part rotating support 251 is used to support the plastic part rotating drive motor 252, the plastic part rotating drive rack 253, the plastic part rotating gear 254, the plastic part rotating seat 255 and other components, so as to protect the normal operation of the double-ball special-shaped part assembling mechanism. The plastic part taking manipulator 24 clamps and conveys the plastic part 5 on the plastic part transposition channel 23 to the plastic part rotating seat 255. The plastic part rotating drive motor 252 is started to drive the plastic part rotating drive rack 253 arranged on the output shaft to push forward or retract, so as to drive the plastic part rotating gear 254 engaged with the plastic part rotating drive rack 253 to drive the plastic part rotating seat 255 arranged thereon and the plastic part on the plastic part rotating seat 255 to rotate, so as to rotate the plastic part 5 on the plastic part rotating seat 255 to a suitable position, which is beneficial to the plastic part taking manipulator 24 to clamp and convey the plastic part 5 with the position adjusted and install the plastic part 5 on the double-ball special-shaped part assembling assembly 3. The whole process has high automation degree, does not need manpower, saves time and effort, and the rotating range of the plastic part rotating seat 255 can also be controlled by an external control mechanism, which further accurately calibrates the plastic part 5 and effectively improves the production efficiency.

[0048] The specific way of accurately calibrating the plastic part by the plastic part rotating platform 25 is as follows: Figures 6 to 9As shown, the plastic part rotating platform 25 further comprises a plastic part limiting block 256 arranged outside the plastic part rotating seat 255, and a plastic part detection member 257 arranged on both sides of the plastic part limiting block 256 and extending into the plastic part limiting block 256 and the plastic part rotating seat 255 to align the plastic part. The plastic part limiting block 256 is sleeved outside the plastic part rotating seat 255, and its height is higher than the total height of the plastic part rotating seat 255 and the plastic part 5 placed in the plastic part rotating seat 255, thereby effectively preventing the plastic part 5 from shifting or falling off from above or the side during detection and rotation. The plastic part detection member 257 extends into the plastic part limiting block 256 to detect the plastic part 5 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 252 to drive the plastic part rotating drive rack 253 to rotate the plastic part rotating gear 254, so as to rotate the plastic part 5 to the appropriate angle for clamping and installing, complete accurate calibration and homing, and facilitate subsequent installation.

[0049] For the specific structure of the special-shaped part assembly component 3, as shown in Figures 10 to 11 As shown, the special-shaped part assembly component 3 comprises a special-shaped part assembly support 31 arranged on the platform, a special-shaped part assembly rotary cylinder 32 arranged on the special-shaped part assembly support 31, a special-shaped part assembly rotating plate 33 arranged on the special-shaped part assembly rotary cylinder 32, and a special-shaped part assembly seat 34 symmetrically arranged on the special-shaped part assembly rotating plate 33. The calibrated and homed double ball 4 is placed in a group of special-shaped part assembly seats 34 by the double ball taking manipulator 14. The special-shaped part assembly rotary cylinder 32 is started to drive the special-shaped part assembly rotating plate 33 arranged on the output shaft and the two groups of special-shaped part assembly seats 34 on the special-shaped part assembly rotating plate 33 to rotate, so that the special-shaped part assembly seat 34 in which the double ball is placed is located below the plastic part taking manipulator 24 that clamps the plastic part 5 conveyed by the plastic part taking manipulator 24. The plastic part taking manipulator 24 moves downward to align the plastic part 5 clamped thereby with the plastic part installation slot 42 on the double ball 4, and the plastic part penetrating installation column 51 on the plastic part 5 is pressed downward to align the through hole 41, so that the plastic part 5 is installed on the double ball 4, completing the entire installation process. The entire process is highly automated, without the need for manual detection and assembly, saving time and effort, and effectively improving production efficiency. By arranging the special-shaped part assembly seats 34 symmetrically on the special-shaped part assembly rotating plate 33, the two groups of special-shaped part assembly seats 34 operate simultaneously, thereby improving the production efficiency of the double ball special-shaped part assembly mechanism.

[0050] Preferably, in order to improve the alignment of the plastic part 5 to the double ball 4 by the plastic part taking manipulator 24, a sensor can also be arranged on the plastic part taking manipulator 24, so as to facilitate the external control mechanism to control the plastic part taking manipulator 24 to accurately install the plastic part 5 on the double ball 4, and improve the installation accuracy.

[0051] The structure and operation mode of the sensor are conventional technical means in the art, and thus are not described herein.

[0052] It should be noted that the double ball special-shaped part assembling mechanism disclosed by the utility model is improved in specific structure, and the specific control mode is not the innovation point of the utility model. The motor, gear, rack, sensor, control mechanism and other components involved in the utility model can be general standard components or components known by those skilled in the art, and the structure, principle and control mode thereof are known by those skilled in the art through technical manuals or through conventional experimental methods.

[0053] The above is only a preferred embodiment of the utility model, and does not limit the technical scope of the utility model in any way. Therefore, other structures obtained by using the same or similar technical features as the above embodiments of the utility model are within the protection scope of the utility model.

Claims

1. A dual ball profile assembly mechanism for use in a seat belt retractor, characterized by: The device comprises a double-ball feeding assembly arranged on a platform, a positioning plastic piece feeding assembly arranged on the platform, and a special-shaped piece assembling assembly arranged on the platform.

2. The dual ball profile assembly mechanism for use in a seat belt retractor of claim 1, wherein: The double-ball feeding detection rotating platform comprises a double-ball feeding detection rotating support arranged on the platform, a double-ball feeding detection rotating motor arranged on the double-ball feeding detection rotating support, and a double-ball feeding detection seat arranged on the output shaft of the double-ball feeding detection rotating motor and used for placing the double ball.

3. The dual ball profile assembly mechanism for use in a seat belt retractor as defined in claim 2, wherein: The double-ball feeding assembly further comprises a double-ball detection limiting assembly arranged on both sides of the detection rotating platform, respectively.

4. The dual ball profile assembly mechanism for use in a seat belt retractor as defined in claim 3, wherein: The double-ball detection limiting assembly comprises a double-ball detection limiting support arranged on the platform, and at least one double-ball detection piece arranged on the double-ball detection limiting support.

5. The dual ball profile assembly mechanism for use in a seat belt retractor of claim 1, wherein: The double-ball detection limiting support further comprises a double-ball detection limiting groove arranged on the double-ball detection limiting support and used for placing the double ball.

6. The dual ball profile assembly mechanism for use in a seat belt retractor as defined in claim 5, wherein: The positioning plastic piece feeding assembly comprises a plastic piece vibrating disc arranged on the platform, a plastic piece material channel arranged on the platform and connected to the plastic piece vibrating disc at one end, a plastic piece transposition material channel arranged on the platform and perpendicular to the plastic piece material channel, a plastic piece material taking manipulator arranged on the platform, and a plastic piece rotating platform arranged on the platform.

7. The dual ball profile assembly mechanism for use in a seat belt retractor as defined in claim 6, wherein: The plastic piece rotating platform comprises a plastic piece rotating support arranged on the platform, a plastic piece rotating drive motor arranged on one end of the plastic piece rotating support, a plastic piece rotating drive rack arranged on the output shaft of the plastic piece rotating drive motor, a plastic piece rotating gear rotatably arranged on the other end of the plastic piece rotating support and engaged with the plastic piece rotating drive rack, and a plastic piece rotating seat arranged on the plastic piece rotating gear. The plastic piece rotating platform further comprises a plastic piece limiting block arranged on the outer side of the plastic piece rotating seat, and a plastic piece detection piece arranged on both sides of the plastic piece limiting block and extending into the plastic piece limiting block and the plastic piece rotating seat to align the plastic piece.

8. The dual ball profile assembly mechanism for use in a seat belt retractor of claim 1, wherein: The profile assembly assembly comprises a profile assembly support erected on a platform, a profile assembly rotary cylinder arranged on the profile assembly support, a profile assembly rotating plate arranged on the profile assembly rotary cylinder, and a profile assembly mounting seat arranged symmetrically on the profile assembly rotating plate.

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