A steel coil shearing machine for automotive front bulkhead with unwinding and clamping structure
The design of the ring-shaped clamping structure solves the problems of inconvenient bolt fixing and loosening in traditional automotive front steel coil shearing machines, achieving precise and stable unwinding and protection of components, and improving the service life and processing accuracy of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG LIANGSHAN HENGTONG MACHINERY MFG
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-31
AI Technical Summary
Traditional automotive front steel coil shearing machines require frequent tightening of bolts for fixing during the uncoiling process, which makes assembly and disassembly inconvenient and prone to loosening, affecting uncoiling accuracy and causing equipment wear.
The device employs a ring-type clamping structure, which uses the cooperation of a threaded rod, a threaded block, and an L-shaped block to achieve ring-type clamping of the coil shaft. The motor drives the threaded rod to rotate, which in turn moves the threaded block and the connecting plate, thus achieving stable clamping of the coil shaft. Combined with bearing seat limiting and ball guide, the unwinding stability is improved.
It achieves precise and stable unwinding, avoids roll deviation, reduces component wear, and improves equipment lifespan and processing accuracy.
Smart Images
Figure CN224577672U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of automotive parts technology, and in particular relates to a steel coil shearing machine for automotive front panel with a coil unwinding clamping structure. Background Technology
[0002] The automotive front bulkhead steel coil shearing equipment is a metal coil processing equipment specifically used in the automotive manufacturing industry for the production of front bulkhead panels. Its core function is to transform automotive steel coils into flat sheets that meet the specifications of front bulkhead panels through processes such as uncoiling, precision leveling, and fixed-length shearing.
[0003] When processing automotive front bulkheads, coiled steel sheets need to be cut into flat sheets using shearing equipment. However, in the unwinding process of the coil cutting equipment, traditionally, bolts are used to directly fasten the coil shaft. The friction between the bolts and the coil shaft, combined with the equipment's power, is used to fix the coil and drive the unwinding. But this method requires repeated tightening of the bolts during assembly and disassembly. Therefore, I need to design an automotive front bulkhead steel coil shearing machine with an unwinding shaft clamping structure that eliminates the need for repeated tightening of bolts. The clamping structure opens and closes directly, and the clamping force surrounds the coil shaft. Compared with bolt friction fixing, it has a stronger anti-loosening ability and ensures unwinding accuracy. Utility Model Content
[0004] The purpose of this utility model is to provide a steel coil shearing machine for the front of an automobile with an unwinding shaft clamping structure. It has the advantages of a ring-shaped clamping force to effectively resist equipment shaking during operation, ensure accurate and stable unwinding, avoid coil deviation, and reduce component wear caused by frequent disassembly and assembly, so as to solve the above-mentioned technical problems.
[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A steel coil shearing machine for the front of an automobile with a coil clamping structure, comprising a cutting execution mechanism, a coil conveying guide assembly installed on the rear side of the cutting execution mechanism, a coil unwinding support installed on the rear side of the cutting execution mechanism, a cold-rolled steel coil sleeved on the surface of the coil unwinding support, a lower base plate fixedly connected to the bottom of the inner side of the coil unwinding support, a fixed shell fixedly connected to the top of the lower base plate, a threaded rod rotatably connected to the lower part of the inner cavity of the fixed shell, a sliding rod provided on the top of the threaded rod, the sliding rod being fixedly connected to the fixed shell, two symmetrical threaded blocks threadedly connected to the surface of the sliding rod, a motor installed on the left side of the fixed shell, the output shaft of the motor passing through the inner cavity of the fixed shell and fixedly connected to the threaded rod, two symmetrical L-shaped blocks provided on the front side of the fixed shell, two symmetrical arc plates fixedly connected to the top of the L-shaped blocks, two coil clamping blocks sleeved on the surface of the coil shaft fixed at the top of the cutting execution mechanism, and the two arc plates fitting against the coil clamping blocks.
[0006] Preferably, the surface of the slide bar has two symmetrical sliders slidably connected, and the bottom of the threaded block is fixedly connected to the sliders.
[0007] Preferably, a connecting plate is fixedly connected to the front side of each of the two threaded blocks, and the top of the connecting plate is fixedly connected to the L-shaped block.
[0008] Preferably, a track is fixedly connected to the bottom of the inner cavity of the fixed shell, and two symmetrical moving blocks are slidably connected to the top of the track. The tops of the two moving blocks are fixedly connected to the connecting plate.
[0009] Preferably, a support seat is fixedly connected to the top rear side of the unwinding support, and the support seat is an openable clamp type. The top of the cutting actuator is fixed to the roll shaft, which is engaged with the inner cavity of the support seat.
[0010] Preferably, bearing seats are fixedly connected to both the front and rear sides of the inner cavity of the fixed shell, and the two bearing seats are rotatably connected to the threaded rod through bearings. Ball bearings are embedded in one side of the arc plate.
[0011] The beneficial effects of this utility model are:
[0012] 1. This utility model uses a steel coil sleeve on a fixed coil shaft to open the support base, and the fixed coil shaft is fixed in its inner cavity. Through the cooperation of the threaded rod, threaded block and L-shaped block, the two arc plates will drive the coil shaft clamping block to move towards each other, so as to achieve a ring-type clamping force to effectively resist the shaking of the equipment, ensure accurate and stable unwinding, avoid coil deviation, and reduce the wear of parts caused by frequent disassembly and assembly.
[0013] 2. This utility model uses the cooperation of the track and the moving block. When the moving block drives the connecting plate to slide in opposite directions, the track guides the moving block, ensuring that the moving block will not deviate when it drives the connecting plate to slide in opposite directions, thus improving the stability of the sliding of the connecting plate.
[0014] 3. By setting up bearing seats, the bearing seats of this utility model limit the threaded rod when it rotates in the inner cavity of the two bearing seats, ensuring that the threaded rod will not wobble during rotation and improving the stability of the threaded rod rotation. Attached Figure Description
[0015] The advantages of the present invention, as described above and / or in the following detailed description in conjunction with the accompanying drawings, will become clearer and more readily understood. These drawings are merely illustrative and do not limit the scope of the present invention.
[0016] Figure 1 This is a front view schematic diagram of one embodiment of the present utility model;
[0017] Figure 2 This is a three-dimensional schematic diagram of an embodiment of the present invention, showing an unwinding support and a cold-rolled steel coil.
[0018] Figure 3 This is a three-dimensional schematic diagram of an L-shaped block and an arc-shaped plate according to an embodiment of the present invention;
[0019] Figure 4 This is a perspective view of a threaded rod and a threaded block according to an embodiment of the present invention;
[0020] Figure 5 This is one embodiment of the present utility model. Figure 1 A magnified view of point A in the middle.
[0021] The attached diagram lists the components represented by each number as follows:
[0022] 1. Cutting actuator; 2. Coil conveying guide assembly; 3. Unwinding support; 4. Cold-rolled steel coil; 5. Bottom plate; 6. Fixed shell; 7. Threaded rod; 8. Sliding rod; 9. Sliding block; 10. Threaded block; 11. Connecting plate; 12. Track; 13. Moving block; 14. Motor; 15. L-shaped block; 16. Arc plate; 17. Coil shaft clamping block; 18. Support seat; 19. Bearing seat. Detailed Implementation
[0023] In the following description, embodiments of the automobile front panel steel coil shearing machine with the unwinding shaft clamping structure of the present invention will be described with reference to the accompanying drawings.
[0024] Figure 1-5This invention illustrates an embodiment of an automotive front bulkhead steel coil shearing machine with an unwinding shaft clamping structure. The machine includes a cutting execution mechanism 1, a coil conveying guide assembly 2 mounted on the rear side of the cutting execution mechanism 1, an unwinding support 3 mounted on the rear side of the cutting execution mechanism 1, a cold-rolled steel coil 4 sleeved on the surface of the unwinding support 3, a lower base plate 5 fixedly connected to the bottom of the inner side of the unwinding support 3, a fixed housing 6 fixedly connected to the top of the lower base plate 5, a threaded rod 7 rotatably connected to the lower part of the inner cavity of the fixed housing 6, a sliding rod 8 provided at the top of the threaded rod 7, the sliding rod 8 fixedly connected to the fixed housing 6, and two threaded connections on the surface of the sliding rod 8. A symmetrical threaded block 10 has two symmetrical sliders 9 slidably connected to the surface of the slide rod 8. The bottom of the threaded block 10 is fixedly connected to the slider 9. A connecting plate 11 is fixedly connected to the front side of each of the two threaded blocks 10. The top of the connecting plate 11 is fixedly connected to the L-shaped block 15. A track 12 is fixedly connected to the bottom of the inner cavity of the fixed shell 6. Two symmetrical moving blocks 13 are slidably connected to the top of the track 12. The tops of the two moving blocks 13 are fixedly connected to the connecting plate 11. Through the cooperation of the track 12 and the moving blocks 13, when the moving blocks 13 drive the connecting plate 11 to slide in opposite directions, the track 12 supports the moving blocks 13. The guide mechanism ensures that the moving block 13 does not deviate when driving the connecting plate 11 to slide towards each other, thus improving the stability of the sliding of the connecting plate 11. A motor 14 is installed on the left side of the fixed housing 6. The output shaft of the motor 14 passes through the inner cavity of the fixed housing 6 and is fixedly connected to the threaded rod 7. Two symmetrical L-shaped blocks 15 are provided on the front side of the fixed housing 6. Two symmetrical arc-shaped plates 16 are fixedly connected to the top of the L-shaped blocks 15. Two roll shaft clamping blocks 17 are sleeved on the surface of the top fixed roll shaft of the cutting execution mechanism 1. The two arc-shaped plates 16 fit against the roll shaft clamping blocks 17, providing unwinding support. 3. A support base 18 is fixedly connected to the top rear side. The support base 18 is an openable clamp type. The top fixed roll shaft of the cutting actuator 1 is engaged with the inner cavity of the support base 18. Bearing seats 19 are fixedly connected to both the front and rear sides of the inner cavity of the fixed shell 6. The two bearing seats 19 are rotatably connected to the threaded rod 7 through bearings. A ball bearing is embedded in one side of the arc plate 16. Through the setting of the bearing seats 19, when the threaded rod 7 rotates in the inner cavity of the two bearing seats 19, the bearing seats 19 play a limiting role on the threaded rod 7, ensuring that the threaded rod 7 will not wobble when rotating, and improving the stability of the rotation of the threaded rod 7.
[0025] Working principle: When using this utility model, the cold-rolled steel coil 4 is first placed on the fixed coil shaft at the top of the cutting execution mechanism 1. The support seat 18 is opened, and the fixed coil shaft is placed and fixed in its inner cavity. The motor 14 is started, and the output shaft of the motor 14 drives the threaded rod 7 to rotate. Because the threads on the surface of the threaded rod 7 are symmetrically arranged, the rotating threaded rod 7 drives the two threaded blocks 10 to slide towards each other along the slide bar 8. The threaded blocks 10 drive the connecting plate 11 and the L-shaped block 15 to move, so that the two arc plates 16 converge towards the middle and drive the coil shaft clamping block 17 to hug the fixed coil shaft, realizing the ring-shaped clamping of the coil shaft. After realizing the ring-shaped clamping of the coil shaft, the self-locking characteristic of the threaded rod 7 is used in conjunction with the slider 9 and the track 12 for limiting, to stably maintain the clamping force. The unwinding power device is connected to the unwinding support 3. A servo motor drives the unwinding support 3 to rotate through a transmission component, enabling stable unwinding of the cold-rolled steel coil 4. Because ball bearings are embedded on one side of the arc plate 16, the cold-rolled steel coil 4 will not jam during unwinding. After the equipment is started, the unwinding power unit drives the cold-rolled steel coil 4 to rotate and unwind. The unwound steel coil is straightened and aligned by the guide rollers and conveying track of the coil conveying guide component 2, and accurately conveyed to the cutting station of the cutting execution mechanism 1. When the steel coil reaches the positioning position, the cutter in the cutting execution mechanism 1 moves downward under the drive of a cylinder or motor, and cooperates with the lower die to cut the steel coil. After one cut is completed, the cutter retracts. The cut steel is collected by the conveying mechanism, and the remaining material continues to be unwound and conveyed. This cycle continues until the entire coil of steel is cut to the predetermined size, providing precise blanks for stamping automotive front-end components.
[0026] In summary, this automotive front-body steel coil shearing machine with an unwinding shaft clamping structure works by placing the steel coil on a fixed coil shaft, opening the support base 18, and fixing the fixed coil shaft within its inner cavity. Through the coordinated use of the threaded rod 7, threaded block 10, and L-shaped block 15, the two arc-shaped plates 16 drive the coil shaft clamping block 17 to move towards each other, thereby achieving an effective ring-like clamping force to resist equipment shaking during operation, ensuring accurate and stable unwinding, preventing coil deviation, and reducing component wear caused by frequent disassembly and assembly.
Claims
1. An automobile front wall steel coil shearing machine of a pay-off shaft clamping structure, characterized by, The device includes a cutting actuator (1), a coil conveying guide assembly (2) installed on the rear side of the cutting actuator (1), an unwinding support (3) installed on the rear side of the cutting actuator (1), a cold-rolled steel coil (4) sleeved on the surface of the unwinding support (3), a lower base plate (5) fixedly connected to the bottom of the inner side of the unwinding support (3), a fixed shell (6) fixedly connected to the top of the lower base plate (5), a threaded rod (7) rotatably connected to the lower part of the inner cavity of the fixed shell (6), a sliding rod (8) provided on the top of the threaded rod (7), and the sliding rod (8) fixedly connected to the fixed shell (6). The slide bar (8) has two symmetrical threaded blocks (10) connected to its surface by threads. A motor (14) is installed on the left side of the fixed housing (6). The output shaft of the motor (14) passes through the inner cavity of the fixed housing (6) and is fixedly connected to the threaded rod (7). Two symmetrical L-shaped blocks (15) are provided on the front side of the fixed housing (6). Two symmetrical arc plates (16) are fixedly connected to the top of the L-shaped blocks (15). Two roll shaft clamping blocks (17) are sleeved on the surface of the top fixed roll shaft of the cutting execution mechanism (1). The two arc plates (16) are in contact with the roll shaft clamping blocks (17).
2. The front wall steel coil cutting machine of claim 1, wherein, The surface of the slide bar (8) is slidably connected to two symmetrical sliders (9), and the bottom of the threaded block (10) is fixedly connected to the sliders (9).
3. The front wall steel coil cutting machine of claim 2, wherein, A connecting plate (11) is fixedly connected to the front side of each of the two threaded blocks (10), and the top of the connecting plate (11) is fixedly connected to the L-shaped block (15).
4. The front wall steel coil cutting machine of claim 3, wherein, The bottom of the inner cavity of the fixed shell (6) is fixedly connected to a track (12), and the top of the track (12) is slidably connected to two symmetrical moving blocks (13), the tops of the two moving blocks (13) being fixedly connected to the connecting plate (11).
5. The front wall steel coil cutting machine of claim 4, wherein, The top rear side of the unwinding support (3) is fixedly connected to the support seat (18), which is an openable clamp type. The top of the cutting execution mechanism (1) is fixed to the roll shaft and engaged in the inner cavity of the support seat (18).
6. The front wall steel coil cutting machine of claim 5, wherein, The front and rear sides of the inner cavity of the fixed shell (6) are fixedly connected with bearing seats (19). The two bearing seats (19) are rotatably connected to the threaded rod (7) through bearings. A ball bearing is embedded in one side of the arc plate (16).