Automobile hinge bushing assembling mechanism

Abstract

The utility model discloses an automobile hinge bushing assembling mechanism which is characterized by comprising a pressing assembly and a fixing assembly, and the fixing assembly is located below the pressing assembly. The pressing assembly comprises an upper fixing base, a flaring shaft used for flanging a lining to be machined and a positioning sleeve used for fixing the position of a workpiece, and the fixing assembly comprises a lower fixing base, a press-fitting base matched with the positioning sleeve and a positioning shaft used for positioning the workpiece to be machined. A penetrating hole which penetrates through the press-fitting seat and allows the positioning shaft to vertically move is formed in the press-fitting seat, and the flaring shaft and the positioning shaft are coaxially arranged; when the positioning shaft in the through hole moves upwards to a corresponding position, the workpiece and the bushing to be processed can be clamped on the end part of the positioning shaft; and the pressing assembly moves downwards along with the pressing assembly, so that the flaring shaft carries out flaring and flanging operation on the lining, and the lining is assembled on a workpiece.

Description

Technical Field

[0001] The technical field of this utility model is particularly related to an automotive hinge bushing assembly mechanism. Background Technology

[0002] In actual production, the bushings used for assembling automotive door hinges are generally purchased externally. Furthermore, one end of these bushings is a pre-machined, flattened flange, while the other end is in a state awaiting processing. (Refer to...) Figure 5 As shown; secondly, in the process of assembling automotive hinges with bushings, it is generally completed through two processes: flaring and flanging. This processing method reduces production efficiency and increases labor costs.

[0003] Therefore, based on the above-mentioned technical problems, this application proposes a cost-saving and production-efficient automotive hinge bushing assembly mechanism. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a cost-saving and production-efficient automotive hinge bushing assembly mechanism.

[0005] To achieve the above objectives, this utility model provides an automotive hinge bushing assembly mechanism, characterized in that it includes a pressing component for assembling the bushing to be processed onto a workpiece and a fixing component that cooperates with the pressing component, wherein the fixing component is located below the pressing component; the pressing component includes an upper fixing seat, a flared shaft for flanging the bushing to be processed, and a positioning sleeve for fixing the position of the workpiece, wherein a guide portion for guiding the bending direction of the bushing under pressure is provided between the working end of the flared shaft and the pressing surface; one end of the flared shaft is connected to the upper fixing seat, and the positioning sleeve is coaxially sleeved on the upper fixing seat. On the outer circumferential surface of the working end of the flared shaft, the upper fixed seat and the positioning sleeve are elastically connected by an upper buffer spring. The fixing assembly includes a lower fixed seat, a press-fit seat that cooperates with the positioning sleeve, and a positioning shaft for positioning the workpiece to be processed. The press-fit seat has a through hole for vertical movement of the positioning shaft. The flared shaft and the positioning shaft are arranged coaxially. When the positioning shaft in the through hole moves upward to the corresponding position, the workpiece and the bushing to be processed can be engaged on the end of the positioning shaft. As the pressing assembly moves downward, the flared shaft performs flaring and flanging operations on the bushing, fitting the bushing onto the workpiece.

[0006] Furthermore, a limiting boss is formed at the bottom of the positioning shaft, and a limiting part that cooperates with the limiting boss is formed on the upper part of the press-fitting seat. A lower buffer spring is provided between the limiting boss and the limiting part.

[0007] Furthermore, the diameter of the perforation is larger than the diameter of the positioning shaft, and the diameter of the limiting part is larger than the diameter of the perforation.

[0008] Furthermore, the pressing assembly also includes a primary connecting plate for connecting to the device. The primary connecting plate is mounted on the top of the upper fixing base, wherein at least two vertically penetrating upper mounting slots are arranged opposite each other on the primary connecting plate.

[0009] Furthermore, the fixing assembly also includes a secondary connecting plate for connecting to the device. The secondary connecting plate is installed at the bottom of the lower fixing base, wherein at least two vertically penetrating lower mounting slots are arranged opposite each other on the secondary connecting plate.

[0010] Furthermore, the pressing assembly also includes a primary vertical movement module for driving the flaring shaft to move vertically.

[0011] Furthermore, the fixing assembly also includes a secondary vertical drive module for driving the positioning shaft to move in the vertical direction.

[0012] The present invention adopts the above-described solution, and its beneficial effects are as follows:

[0013] Unlike the traditional method of first flaring the bushing with a flaring bar and then transferring the workpiece and bushing to the assembly device for flanging with a flattening bar, this embodiment uses a guide part on the flaring shaft. The bushing is flared and then flanged as it moves downwards, thus combining the flaring and flanging processes. This improves assembly accuracy and production efficiency, optimizes space utilization, and makes it easier to save production costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall utility model.

[0015] Figure 2 This is a schematic diagram of the utility model.

[0016] Figure 3 for Figure 2 A magnified schematic diagram of part A in the diagram.

[0017] Figure 4 for Figure 2 A magnified schematic diagram of part B in the image.

[0018] Figure 5 This is a schematic diagram of the structure of the bushing to be processed.

[0019] Figure 6 This is a schematic diagram of the structure of a machined bushing.

[0020] Among them, 1-pressing component, 11-upper fixed seat, 12-flared shaft, 121-working end, 122-guide part, 123-pressing surface, 13-positioning sleeve, 14-upper buffer spring, 15-first stage connecting plate, 151-upper mounting groove, 2-fixing component, 21-lower fixed seat, 22-pressing seat, 221-through hole, 222-limiting part, 23-positioning shaft, 231-limiting boss, 24-secondary connecting plate, 241-lower mounting groove, 25-lower buffer spring, 3-workpiece, 4-shield to be processed. Detailed Implementation

[0021] To facilitate understanding of this utility model, a more complete description of it is provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0022] See appendix Figure 1 As shown, in this embodiment, an automotive hinge bushing assembly mechanism is characterized by: including a pressing component 1 for assembling the bushing 4 to be processed onto the workpiece 3 and a fixing component 2 that cooperates with the pressing component 1, wherein the fixing component 2 is located below the pressing component 1; the pressing component 1 includes an upper fixing seat 11, a flared shaft 12 for flanging the bushing 4 to be processed, and a positioning sleeve 13 for fixing the position of the workpiece 3, wherein a guide portion 122 for guiding the bushing bending direction under pressure is provided between the working end 121 of the flared shaft 12 and the pressing surface 123.

[0023] Specifically, as the flaring shaft 12 moves downward, the end of the bushing 4 to be processed is flared and flanged along the guide portion 122. By fixing the bushing 4 to be processed in the same position for flaring and flanging, the inconsistent reassembly calibration of the bushing 4 to be processed during the flaring and flanging operations is avoided, thereby reducing assembly accuracy and yield.

[0024] In this embodiment, see Appendix Figure 2As shown, one end of the flared shaft 12 is connected to the upper fixed seat 11, and the positioning sleeve 13 is coaxially sleeved on the outer circumferential surface of the working end 121 of the flared shaft 12. The upper fixed seat 11 and the positioning sleeve 13 are elastically connected by an upper buffer spring 14. By setting the upper buffer spring 14 to elastically connect the upper fixed seat 11 and the positioning sleeve 13, the positioning sleeve 13 cooperates with the pressing seat 22 to press the workpiece 3 when pressing and assembling the workpiece 3, so as to avoid the workpiece 3 from being displaced during the pressing process, thereby affecting the assembly quality and making it easier to protect the overall condition of the mechanism. Secondly, the elastic potential energy of the upper buffer spring 14 presses the workpiece 3, and under the premise of fixing the workpiece 3 with the pressing seat 22, the pressure on the workpiece 3 is reduced, which relatively protects the integrity of the workpiece 3 and avoids unnecessary damage to the workpiece 3, thus affecting the assembly quality.

[0025] It should be noted that the height of the pressing surface of the positioning sleeve 13, which is elastically connected to the upper buffer spring 14, is lower than the height of the working end 121 of the flared shaft 12. This allows the positioning sleeve 13 to fix the workpiece 3 first, and then press and assemble it through the flared shaft 12. When the pressing assembly 1 moves downward in the vertical direction, the pressing surface of the positioning sleeve 13 stops and abuts against the workpiece 3, causing the upper buffer spring 14 to compress. This allows the positioning sleeve 13 to cooperate with the pressing seat 22 to fix the workpiece 3. When the bushing to be processed end is pressed into a flange shape, and the pressing assembly 1 moves upward in the vertical direction, the upper buffer spring 14 gradually unfolds from the compressed state. The elastic potential energy of the upper buffer spring 14 causes the pressing surface of the positioning sleeve 13 to press against the workpiece 3, preventing the workpiece 3 with the bushing assembled from getting stuck on the flared shaft 12 and unable to be removed.

[0026] In this embodiment, see Appendix Figure 2 As shown, the fixing assembly 2 includes a lower fixing seat 21, a pressing seat 22 that cooperates with the positioning sleeve 13, and a positioning shaft 23 for positioning the workpiece 3 to be processed. The pressing seat 22 has a through hole 221 formed on it, which allows the positioning shaft 23 to move vertically. The diameter of the through hole 221 is larger than the diameter of the positioning shaft 23. The flared shaft 12 is coaxially arranged with the positioning shaft 23. When the positioning shaft 23 in the through hole 221 moves upward to the corresponding position, the workpiece 3 and the bushing 4 to be processed can be engaged on the end of the positioning shaft 23. As the pressing assembly 1 moves downward, the flared shaft 12 performs flaring and flanging operations on the bushing, and assembles the bushing onto the workpiece 3.

[0027] Further details can be found in the appendix. Figure 4 As shown, a limiting boss 231 is formed at the bottom of the positioning shaft 23, and a limiting part 222 that mates with the limiting boss 231 is formed on the upper part of the press-fit base 22. The diameter of the limiting part 222 is larger than the diameter of the through hole 221. A lower buffer spring 25 is provided between the limiting boss 231 and the limiting part 222.

[0028] Secondly, through the cooperation between the limiting boss 231 of the positioning shaft 23, the limiting part 222 of the press seat 22 and the lower buffer spring 25, the movement stroke of the positioning shaft 23 is relatively limited, so as to avoid the limiting boss 231 directly colliding with the limiting part 222 during the vertical movement of the positioning shaft 23 and causing damage, thereby reducing maintenance costs.

[0029] In this embodiment, see Appendix Figure 2 As shown, the pressing assembly 1 also includes a primary connecting plate 15 for connecting to the equipment. The primary connecting plate 15 is mounted on the top of the upper fixed seat 11, wherein at least two upper mounting slots 151 extending vertically are arranged opposite each other on the primary connecting plate 15. The fixing assembly 2 also includes a secondary connecting plate 24 for connecting to the equipment. The secondary connecting plate 24 is mounted on the bottom of the lower fixed seat 21, wherein at least two lower mounting slots 241 extending vertically are arranged opposite each other on the secondary connecting plate 24. In this example, the automotive hinge bushing assembly mechanism bolts the pressing assembly 1 and the fixing assembly 2 to the corresponding equipment through the upper mounting slots 151 and the lower mounting slots 241, thereby driving the pressing assembly 1 and the fixing assembly 2 to work together to realize the function of assembling the workpiece 3 and the bushing 4 to be processed.

[0030] Furthermore, the pressing assembly 1 also includes a primary vertical movement module for driving the flaring shaft 12 to move in the vertical direction; the fixing assembly 2 also includes a secondary vertical drive module for driving the positioning shaft 23 to move in the vertical direction, which is not shown in the figure.

[0031] To facilitate explanation, the following further explains the specific assembly process of the automotive hinge bushing assembly mechanism in this embodiment.

[0032] Preparation: First, the first-level vertical moving module drives the pressing component 1 to move upward in the vertical direction, and the second-level vertical driving module drives the positioning shaft 23 in the through hole 221 to move upward in the vertical direction until the upper end of the positioning shaft 23 is partially exposed in the pressing seat 22; second, the bushing 4 to be processed is installed on the corresponding position of the workpiece 3.

[0033] Assembly begins: The bushing 4 to be processed is assembled with the end to be processed facing upwards onto the partially exposed positioning shaft 23 for positioning. Next, the first-level vertical movement module drives the pressing assembly 1 to move downwards in the vertical direction. When the positioning sleeve 13 presses against one side of the workpiece 3, the second-level vertical movement module drives the positioning shaft 23 to move downwards into the through hole 221. The pressing surface of the positioning sleeve 13 comes into contact with the workpiece 3, compressing the upper buffer spring 14, so that the positioning sleeve 13 and the pressing seat 22 cooperate to press against the workpiece 3.

[0034] As the flaring shaft 12 moves downward, the flaring shaft 12 performs flaring operation on the bushing 4 to be processed, and the end of the bushing 4 to be processed deforms and bends outward along the guide portion 122 of the flaring shaft 12.

[0035] When the end of the bushing to be processed contacts the pressing surface 123 of the flared shaft 12, the flaring operation of the bushing is completed and the flanging operation begins; as the flared shaft 12 continues to move downward, the pressing surface 123 presses the end of the bushing to be processed into a flange shape.

[0036] After the bushing end to be processed is pressed into a flange shape, the first-stage vertical moving module drives the pressing assembly 1 to move upward in the vertical direction. The upper buffer spring 14 gradually changes from a compressed state to an unfolded state. Through the elastic potential energy of the upper buffer spring 14, the pressing surface of the positioning sleeve 13 moves upward with the pressing assembly 1, continuing to press the workpiece 3, so that the workpiece 3 is on the pressing seat 22, until the workpiece 3 with the bushing assembled is separated from the flared shaft 12; then the workpiece 3 with the bushing assembled is taken out from the pressing seat 22, thereby completing the assembly of the workpiece 3 and the bushing 4 to be processed.

[0037] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the utility model in any way. Any modifications or alterations made by those skilled in the art to the technical solution of this utility model without departing from its scope are equivalent embodiments of this utility model. Therefore, all equivalent changes made based on the concept of this utility model without departing from its scope should be covered within the protection scope of this utility model.

Claims

1. An automotive hinge bushing assembly, characterized by: The application relates to a pressing assembly (1) for assembling a bushing (4) to be processed to a workpiece (3) and a fixing assembly (2) matched with the pressing assembly (1), wherein the fixing assembly (2) is located below the pressing assembly (1); the pressing assembly (1) comprises an upper fixing seat (11), a flaring shaft (12) for flaring the bushing (4) to be processed and a positioning sleeve (13) for fixing the position of the workpiece (3), wherein a guide part (122) for guiding the bending direction of the bushing under pressure is arranged between the working end (121) of the flaring shaft (12) and the pressing surface (123); one end of the flaring shaft (12) is connected with the upper fixing seat (11), the positioning sleeve (13) is coaxially sleeved on the outer circumferential surface of the working end (121) of the flaring shaft (12), the upper fixing seat (11) and the positioning sleeve (13) are elastically connected through an upper buffer spring (14), the fixing assembly (2) comprises a lower fixing seat (21), a pressing seat (22) matched with the positioning sleeve (13) and a positioning shaft (23) for positioning the workpiece (3) to be processed, a through hole (221) for vertical movement of the positioning shaft (23) is formed in the pressing seat (22), wherein the flaring shaft (12) and the positioning shaft (23) are arranged on the same shaft; when the positioning shaft (23) in the through hole (221) moves upwards to a corresponding position, the workpiece (3) and the bushing (4) to be processed can be clamped on the end of the positioning shaft (23); the flaring shaft (12) performs flaring and flanging operation on the bushing and assembles the bushing to the workpiece (3) by moving the pressing assembly (1) downwards.

2. An automotive hinge bushing assembly as defined in claim 1 wherein: A limiting boss (231) is formed at the bottom of the positioning shaft (23), a limiting part (222) matched with the limiting boss (231) is formed on the upper portion of the pressing seat (22), wherein a lower buffer spring (25) is arranged between the limiting boss (231) and the limiting part (222).

3. An automotive hinge bushing assembly as defined in claim 2 wherein: The diameter of the through hole (221) is larger than the diameter of the positioning shaft (23), and the diameter of the limiting part (222) is larger than the diameter of the through hole (221).

4. An automotive hinge bushing assembly as defined in claim 1 wherein: The pressing assembly (1) further comprises a primary connecting plate (15) for connecting with equipment, the primary connecting plate (15) is installed on the top of the upper fixing seat (11), wherein at least two upper installation grooves (151) penetrating in the vertical direction are oppositely arranged on the primary connecting plate (15).

5. An automotive hinge bushing assembly as defined in claim 1 wherein: The fixing assembly (2) further comprises a secondary connecting plate (24) for connecting with equipment, the secondary connecting plate (24) is installed on the bottom of the lower fixing seat (21), wherein at least two lower installation grooves (241) penetrating in the vertical direction are oppositely arranged on the secondary connecting plate (24).

6. An automotive hinge bushing assembly as defined in claim 1 wherein: The pressing assembly (1) further comprises a primary vertical movement module for driving the flaring shaft (12) to move in the vertical direction.

7. An automotive hinge bushing assembly as defined in claim 1 wherein: The fixing assembly (2) further comprises a secondary vertical driving module for driving the positioning shaft (23) to move in the vertical direction.

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