A punching device for producing an automobile door hinge

Abstract

The present disclosure relates to the hinge production processing related technical field, and an embodiment of the present disclosure provides a punching device for automobile door hinge production, which comprises a machine body and a vertical seat, the vertical seat is fixed on the machine body, a pressure bearing seat is arranged on the surface of the machine body, a blanking assembly is arranged on the pressure bearing seat, a lifting seat is connected at the top of the vertical seat through a vertical linear drive, a switching stamping assembly is arranged on the lifting seat, the switching stamping assembly comprises a stamping top seat, the stamping top seat is connected at the bottom of the lifting seat through power-driven rotation, a pair of mounting grooves are formed on the bottom surface of the stamping top seat, a stable sleeve is arranged at each end of the upper surface of the stamping top seat, and a through cavity is formed at each end of the surface of the lifting seat. Through the above technical scheme, the technical problem that the existing device in the prior art generally cannot complete the stamping forming and punching process at the same time, resulting in fragmented production process and seriously restricting the processing efficiency is solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the technical field of hinge manufacturing and processing, specifically to a punching device for manufacturing automotive door hinges. Background Technology

[0002] In the automotive door hinge production process, the punching device is the core equipment for machining the holes in the hinge components. It needs to machine positioning holes and connecting holes for assembly into the metal blank. At the same time, some processes also require stamping the blank to meet the structural strength and assembly requirements of the hinge. As a key connecting component for opening and closing car doors, automotive door hinges have extremely high requirements for processing accuracy and production efficiency. However, the shortcomings of traditional punching devices used in automotive door hinge production are becoming increasingly apparent: existing devices generally have the disadvantage of being inconvenient to complete the stamping and punching processes simultaneously, and lack automatic unloading functions, resulting in a fragmented production process, severely restricting processing efficiency, and easily affecting the consistency of component processing accuracy.

[0003] Traditional punching devices are mostly single-function designs. To complete both the stamping and punching of hinges, the blank must first be sent to the stamping equipment for shaping, and then transferred to the punching device to process the holes. Manual transfer of the blank between these two processes not only increases intermediate steps and manpower input, but also risks collisions and positioning deviations during transfer, leading to mismatches between the subsequent punching position and the formed structure, affecting the hinge assembly accuracy. While some integrated devices attempt to combine both functions, their unreasonable structural design makes it difficult to synchronize and coordinate the stamping and punching actions, easily resulting in incomplete forming or hole misalignment.

[0004] Therefore, the development of a punching device for automotive door hinge production that can simultaneously complete stamping and punching and has an automatic unloading function has become an urgent need to improve processing efficiency and precision. Utility Model Content

[0005] To overcome the above-mentioned defects, the embodiments of this disclosure provide a punching device for automobile door hinge production, which solves the technical problem that existing devices in the prior art are generally inconvenient to complete the stamping and punching processes at the same time, resulting in fragmented production processes and seriously restricting processing efficiency.

[0006] According to one aspect, at least one embodiment of this disclosure provides a punching apparatus for manufacturing automotive door hinges, comprising: The body and the stand, wherein the stand is fixed to the body; The pressure-bearing seat and the mounting and unloading assembly are provided on the surface of the machine body. The lifting seat and the switching stamping assembly are provided. The lifting seat is connected to the top of the upright seat via a vertical linear drive, and the switching stamping assembly is disposed on the lifting seat. The switching stamping assembly includes a stamping top seat, which is electrically driven to rotate and connect to the bottom of the lifting seat. The bottom surface of the stamping top seat has a pair of mounting grooves, and both ends of the upper surface of the stamping top seat are provided with stabilizing sleeves. Both ends of the surface of the lifting seat have through cavities.

[0007] As a further technical solution, a telescopic cylinder is horizontally installed in each of the through cavities, and a stabilizing block is provided at the output end of the telescopic cylinder. The stabilizing block is movably fitted in the lifting seat, and one end of the stabilizing block is inserted into the stabilizing sleeve.

[0008] According to another aspect, in at least one embodiment of the present invention, the installation and unloading assembly includes a transverse groove, which is formed on the surface of the pressure seat. A rotating block is rotatably connected to the transverse groove via a rotating shaft, and the rotating block is driven to rotate by electricity.

[0009] As a further technical solution, a mounting seat is provided on the side end face of the rotating block, the bottom surface of the mounting seat is attached to the upper surface of the pressure seat, a mold groove is opened on the surface of the mounting seat, and slots are opened on both sides of the mounting seat.

[0010] As a further technical solution, an outer frame is provided on both sides of the pressure bearing seat, and a second cylinder is horizontally installed on the side surface of the outer frame. A plug is provided at the output end of the second cylinder, and the plug is inserted into the slot.

[0011] As a further technical solution, a collection box is provided on the side surface of the machine body, and a baffle plate is provided at one end of the top of the collection box.

[0012] As a further technical solution, the stabilizing sleeve has an overall U-shaped opening structure.

[0013] As a further technical solution, both the inner bottom surface of the slot and the bottom surface of the insert block are inclined slope structures.

[0014] The beneficial effects of the embodiments disclosed herein are as follows: In this disclosure, the switching stamping assembly solves the problems of cumbersome process switching and low processing accuracy in traditional devices through a dual-mold switching and precise fixing design. The stamping top seat can rotate to switch between the stamping die and the punching die in the mounting slot, eliminating the need to replace the die and significantly shortening the process interval; the telescopic cylinder drives the stabilizing block to insert into the stabilizing sleeve, limiting the rotational offset of the stamping top seat and ensuring precise alignment between the die and the workpiece, avoiding processing deviations; the vertical linear drive of the lifting seat can precisely control the processing pressure and stroke, adapting to the needs of different hinge specifications. This structure enables efficient connection between stamping and punching processes, reduces equipment idle time, and at the same time, stable positioning ensures consistent processing dimensions, improves the production efficiency and accuracy of automotive door hinges, and meets the requirements of large-scale processing for process continuity. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0016] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure; Figure 2 This is an isometric drawing of the present disclosure; Figure 3 This is an isometric sectional view of the present disclosure; Figure 4 Appendix to this disclosure Figure 3 Enlarged view of part A in the middle; In the diagram: 1. Machine body; 2. Stand; 3. Pressure bearing seat; 4. Lifting seat; 5. Switching stamping assembly; 5-1. Stamping top seat; 5-2. Mounting slot; 5-3. Stabilizing sleeve; 5-4. Through cavity; 5-5. Telescopic cylinder; 5-6. Stabilizing block; 6. Installing unloading assembly; 6-1. Horizontal slot; 6-2. Rotating block; 6-3. Mounting seat; 6-4. Mold slot; 6-5. Slot; 6-6. Outer frame; 6-7. Second cylinder; 6-8. Insert block; 7. Collection box; 8. Baffle plate. Detailed Implementation

[0017] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0018] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0019] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0020] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0022] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] like Figures 1-4 As shown, a punching device for manufacturing automotive door hinges according to an embodiment of this disclosure is illustrated, comprising: The machine body 1 and the stand 2, wherein the stand 2 is fixed on the machine body 1; The pressure-bearing seat 3 and the mounting and unloading assembly 6 are provided on the surface of the machine body 1. The lifting seat 4 and the switching stamping assembly 5 are provided. The lifting seat 4 is connected to the top of the stand 2 via a vertical linear drive, and the switching stamping assembly 5 is disposed on the lifting seat 4. The switching stamping assembly 5 includes a stamping top seat 5-1, which is electrically driven to rotate and connect to the bottom of the lifting seat 4. The bottom surface of the stamping top seat 5-1 has a pair of mounting grooves 5-2. Both ends of the upper surface of the stamping top seat 5-1 are provided with stabilizing sleeves 5-3. Both ends of the surface of the lifting seat 4 are provided with through cavities 5-4. Telescopic cylinders 5-5 are horizontally installed in the through cavities 5-4. A stabilizing block 5-6 is provided at the output end of the telescopic cylinder 5-5. The stabilizing block 5-6 is movably fitted in the lifting seat 4, and one end of the stabilizing block 5-6 is inserted into the stabilizing sleeve 5-3.

[0024] In some examples, to enable rapid switching between stamping and punching processes in automotive door hinges and avoid the long downtime and cumbersome process connections caused by mold replacement in traditional equipment, a switching stamping assembly 5 was designed. This assembly includes a stamping top seat 5-1 that rotates electrically at the bottom of the lifting seat 4, providing a foundation for dual-mold installation and switching. A pair of mounting slots 5-2 on its bottom surface can respectively install the stamping mold and the punching mold. The electric drive can drive the stamping top seat 5-1 to rotate around the vertical axis, realizing rapid switching between the two molds. When stamping is required, the forming mold is rotated to the top of the pressure seat 3. When punching is required, the mold is rotated to the punching mold. There is no need to disassemble and replace the mold, which greatly shortens the process switching time and improves production efficiency.

[0025] The stabilizing sleeves 5-3 at both ends of the upper surface of the stamping top seat 5-1 cooperate with the telescopic cylinders 5-5 and stabilizing blocks 5-6 in the through cavities 5-4 at both ends of the surface of the lifting seat 4 to form a positioning and fixing structure after mold switching.

[0026] When the stamping top seat 5-1 rotates to the target mold position, the telescopic cylinder 5-5 drives the stabilizing block 5-6 to move horizontally, so that one end of it is inserted into the corresponding stabilizing sleeve 5-3. Through the insertion and limiting of the stabilizing block 5-6 and the stabilizing sleeve 5-3, the stamping top seat 5-1 is restricted from rotating and shifting during the processing, ensuring that the mold and the workpiece on the pressure seat 3 are accurately aligned, and avoiding the deviation of processing dimensions due to mold offset.

[0027] The through cavity 5-4 provides installation space for the telescopic cylinder 5-5 and the stabilizing block 5-6, and at the same time guides the movement of the stabilizing block 5-6 to prevent it from tilting when moving, thus ensuring the accuracy of the insertion and positioning.

[0028] The lifting seat 4 can be vertically raised and lowered via a vertical linear drive, which drives the stamping top seat 5-1 and the mold to move downward to complete the stamping or punching process. The stroke and pressure of the linear drive can be precisely controlled to adapt to the processing requirements of hinges of different thicknesses, ensuring that the forming depth and punching diameter meet the specifications.

[0029] During operation, the lifting seat 4 descends to drive the mold processing. When switching processes, the electric drive rotates the stamping top seat 5-1, and the telescopic cylinder 5-5 drives the stabilizing block 5-6 for positioning. Rotation switching enables efficient sequence changing, and pneumatic stabilization ensures processing precision. All components work together to complete the stamping and punching switching processes, meeting the production needs of automotive door hinges.

[0030] like Figures 1-4As shown in the figure, the installation and unloading assembly 6 in this embodiment includes a transverse groove 6-1, which is formed on the surface of the pressure seat 3. A rotating block 6-2 is rotatably connected to the transverse groove 6-1 via a rotating shaft. The rotating block 6-2 is driven to rotate by electricity. A mounting seat 6-3 is provided on the side end face of the rotating block 6-2. The bottom surface of the mounting seat 6-3 is attached to the upper surface of the pressure seat 3. A mold groove 6-4 is formed on the surface of the mounting seat 6-3. Slots 6-5 are formed on both sides of the mounting seat 6-3. An outer frame 6-6 is provided on both sides of the pressure seat 3. A second cylinder 6-7 is horizontally mounted on the side surface of the outer frame 6-6. An insertion block 6-8 is provided at the output end of the second cylinder 6-7. The insertion block 6-8 is inserted into the slot 6-5.

[0031] In some examples, to achieve stable installation of automotive door hinge workpieces and flip-out material discharge after forming, and to avoid the problems of manual clamping and positioning deviation affecting processing accuracy, or low efficiency and easy injury of manual material handling after processing, an installation and unloading assembly 6 is designed. This assembly includes a rotating block 6-2 that rotates through a rotating shaft in the transverse groove 6-1 on the surface of the pressure seat 3, providing flip support for the mounting seat 6-3. The rotating block 6-2 can rotate around the rotating shaft by electric drive, which drives the mounting seat 6-3 to switch between horizontal processing and inclined material discharge. During processing, the mounting seat 6-3 remains horizontal with the rotating block 6-2 to ensure that the workpiece is placed stably.

[0032] After processing, the rotating block 6-2 drives the mounting base 6-3 to flip upward, causing the workpiece to slide outward under gravity, completing the automatic unloading. This eliminates the need for manual contact with high-temperature or sharp workpieces, improving operational safety. The mounting base 6-3 on the side end face of the rotating block 6-2 has a mold groove 6-4, which can accurately position the hinge workpiece and avoid workpiece displacement during processing, thus preventing dimensional deviations. The shape of the mold groove 6-4 is adapted to the contour of the workpiece, which can increase the contact area between the workpiece and the mounting base 6-3, disperse the impact force during processing, and reduce workpiece deformation.

[0033] The slots 6-5 on both sides of the mounting base 6-3 cooperate with the second cylinder 6-7 and the insert block 6-8 on the outer frame 6-6 on both sides of the pressure seat 3 to form a clamping and fixing structure during processing. When the mounting base 6-3 is horizontal, the second cylinder 6-7 drives the insert block 6-8 to move horizontally and insert it into the slot 6-5, firmly fixing the mounting base 6-3 on the pressure seat 3. This prevents the mounting base 6-3 from flipping or shifting due to vibration or impact during processing, ensuring processing stability. When discharging, the second cylinder 6-7 drives the insert block 6-8 to disengage from the slot 6-5, releasing the fixation and providing space for the rotating block 6-2 to flip and discharge the material. The outer frame 6-6 provides mounting support for the second cylinder 6-7, ensuring that the moving direction of the insert 6-8 is precisely aligned with the slot 6-5, thus guaranteeing the reliability of the insertion and fixing.

[0034] During operation, the workpiece is placed into the mold slot 6-4, and the second cylinder 6-7 drives the insert block 6-8 to fix the mounting base 6-3. After processing, the insert block 6-8 retracts, and the rotating block 6-2 drives the mounting base 6-3 to flip and discharge the workpiece. Precise positioning ensures processing accuracy, and the flipping drive enables automatic discharge. All components work together to complete the workpiece installation and forming before flipping and discharging it outward, meeting the needs of efficient and safe production of automotive door hinges.

[0035] For example, such as Figure 1 As shown, a collection box 7 is provided on the side surface of the body 1, and a baffle plate 8 is provided at one end of the top of the collection box 7.

[0036] In some examples, the collection box 7 on the side surface of the machine body 1 can accurately catch the shaped hinged workpieces that slide off the mounting base 6-3, preventing them from falling to the ground and causing damage. It also allows for centralized collection of workpieces, reducing subsequent sorting and improving the continuity of the production process. A baffle plate 8 at one end of the top of the collection box 7 prevents excessive movement of the workpiece due to inertia when it slides out of the collection box 7, preventing it from falling to the other side and ensuring that the workpiece remains stably inside the collection box 7.

[0037] For example, such as Figure 1 As shown, the stabilizing sleeve 5-3 has an overall U-shaped opening structure.

[0038] In some examples, the stabilizing sleeve 5-3 has a U-shaped opening structure, which provides more space for alignment when the stabilizing block 5-6 is inserted. Even if there is a slight positional deviation in the stabilizing block 5-6, it can be smoothly inserted through the guiding effect of the U-shaped opening, reducing the difficulty of insertion and alignment, and improving the ease of operation for stable positioning after mold switching.

[0039] For example, such as Figure 4 As shown, the inner bottom surface of the slot 6-5 and the bottom surface of the insert 6-8 are both inclined slope structures.

[0040] In some examples, the inner bottom surface of slot 6-5 and the bottom surface of insert 6-8 are both inclined slope structures. The inclined slope can form a guiding effect when insert 6-8 is inserted into slot 6-5, guiding insert 6-8 into slot 6-5 quickly and accurately, without the need for repeated manual adjustment of the position of insert 6-8, thus improving the operation efficiency of fixing mounting base 6-3.

[0041] In practical use: The car door hinge blank is placed into the mold slot 6-4 of the mounting base 6-3 of the mounting and unloading assembly 6. The second cylinder 6-7 of the outer frames 6-6 on both sides of the pressure seat 3 is activated, pushing the insert block 6-8 horizontally into the slot 6-5 of the mounting base 6-3, thus fixing the mounting base 6-3 onto the pressure seat 3. According to processing requirements, the electric drive of the switching stamping assembly 5 is activated, causing the stamping top seat 5-1 at the bottom of the lifting seat 4 to rotate, aligning the mounting slot 5-2 containing the corresponding mold (stamping forming mold or punching mold) with the mounting base 6-3. Then, the vertical linear drive of the lifting seat 4 is activated, causing the stamping top seat 5-1 and the mold to descend, completing the stamping forming or punching process of the hinge. After processing, the lifting seat 4 returns to its original position, and the second cylinder 6-7 drives the insert block 6-8 to disengage from the slot 6-5. The electrically driven rotating block 6-2 rotates along the inner axis of the transverse groove 6-1, and the mounting seat 6-3 tilts with the rotating block 6-2. The forming hinge slides down to the collection box 7 on the side surface of the machine body 1 under the action of gravity, and the baffle plate 8 prevents the hinge from sliding out of the collection box 7. If it is necessary to switch processes, the above steps of rotating the stamping top seat 5-1 and fixing the stabilizing block 5-6 can be repeated. The entire process can achieve continuous processing and automatic material discharge without frequent manual intervention.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A punching device for manufacturing automotive door hinges, characterized in that, include: The body (1) and the stand (2), wherein the stand (2) is fixed on the body (1); The pressure bearing seat (3) and the installation and unloading assembly (6) are provided on the surface of the machine body (1). The lifting seat (4) and the switching stamping assembly (5) are provided on the lifting seat (4) and the switching stamping assembly (5). The lifting seat (4) is connected to the top of the stand (2) by a vertical linear drive. The switching stamping assembly (5) includes a stamping top seat (5-1), which is electrically driven to rotate and connect to the bottom of the lifting seat (4). The bottom surface of the stamping top seat (5-1) is provided with a pair of mounting grooves (5-2). Both ends of the upper surface of the stamping top seat (5-1) are provided with stabilizing sleeves (5-3). Both ends of the surface of the lifting seat (4) are provided with through cavities (5-4).

2. The punching device for manufacturing automotive door hinges according to claim 1, characterized in that, Telescopic cylinders (5-5) are horizontally installed in the cavity (5-4). A stabilizing block (5-6) is provided at the output end of the telescopic cylinder (5-5). The stabilizing block (5-6) is movably fitted in the lifting seat (4). One end of the stabilizing block (5-6) is inserted into the stabilizing sleeve (5-3).

3. The punching device for manufacturing automotive door hinges according to claim 1, characterized in that, The installation and unloading assembly (6) includes a transverse groove (6-1), which is formed on the surface of the pressure seat (3). A rotating block (6-2) is rotatably connected to the transverse groove (6-1) via a rotating shaft. The rotating block (6-2) is driven to rotate by electricity.

4. The punching device for manufacturing automotive door hinges according to claim 3, characterized in that, The rotating block (6-2) is provided with a mounting base (6-3) on its side end face. The bottom surface of the mounting base (6-3) is attached to the upper surface of the pressure seat (3). A mold groove (6-4) is opened on the surface of the mounting base (6-3). Slots (6-5) are opened on both sides of the mounting base (6-3).

5. A punching device for manufacturing automotive door hinges according to claim 4, characterized in that, Both sides of the pressure seat (3) are provided with an outer frame (6-6). A second cylinder (6-7) is horizontally installed on the side surface of the outer frame (6-6). A plug (6-8) is provided at the output end of the second cylinder (6-7). The plug (6-8) is inserted into the slot (6-5).

6. The punching device for manufacturing automotive door hinges according to claim 1, characterized in that, A collection box (7) is provided on the side surface of the body (1), and a baffle plate (8) is provided at one end of the top of the collection box (7).

7. A punching device for manufacturing automotive door hinges according to claim 1, characterized in that, The stabilizing sleeve (5-3) has an overall U-shaped opening structure.

8. A punching device for manufacturing automotive door hinges according to claim 5, characterized in that, The bottom surface of the slot (6-5) and the bottom surface of the insert (6-8) are both inclined slope structures.

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