Cut-off machine for automobile door panel

By designing a cutting machine for automotive door panels, the problem of solid debris splashing in existing technologies has been solved, achieving a debris-free cutting process, improving production efficiency and safety.

CN223670300UActive Publication Date: 2025-12-16JIANGSU NIUNIU AUTO PARTS CO LTD
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Patent Information

Application Number
CN202520045727.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-09
Publication Date
2025-12-16
Estimated Expiration
2035-01-09

AI Technical Summary

Technical Problem

In existing technology, when repairing car door panels, solid debris generated by the grinding wheel can fly up and block the drainage holes under the door panel, affecting the normal operation of the door lock and window lifting mechanism, resulting in a second return to the factory for repair.

Method used

A cutting machine for automotive door panels was designed, which adopts a combination structure of fixed blade and moving blade, combined with the design of handle, side handle and sliding sleeve to ensure that no debris is generated during the cutting process. The strength and stability of the blade body are improved by thickening strip and support lug structure, and the impact force is enhanced by the use of counterweight ring to achieve rapid penetration of door panels.

Benefits of technology

This achieves zero debris splashing during the shearing process, making tool use more stable and efficient, improving production efficiency, and reducing the impact on production stability and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a cut-off machine for an automobile door panel, and belongs to the technical field of cutting equipment. A cut-off machine for an automobile door panel comprises a main machine, a fixed cutter and a movable cutter, a handle is installed at the end, away from the fixed cutter, of the main machine, a side plate is installed on the vertical side wall of the main machine, a side handle is installed in the middle of the side plate, the side handle is perpendicular to the handle, the fixed cutter comprises a cutter body, and a middle shaft is installed in the middle of the cutter body in a penetrating mode. The main machine drives the movable cutter to rotate around the center axis of the fixed cutter, and the cutter body extends into the main machine to form a supporting lug. By optimizing the overall structure, the meshing position of the fixed cutter and the movable cutter is aligned to a door plate needing to be sheared, the fixed cutter and the movable cutter do not generate chippings, the door plate does not have a large amount of chippings to fall off, the door plate is cleaner and safer, the side handle is installed in the middle of the side plate, the side handle is designed to be perpendicular to the grip, and the side handle can stabilize the tool to bear the main weight; the shearing direction can be more conveniently controlled through the grip, and use is more stable and rapid.
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Description

TECHNICAL FIELD

[0001] The utility model relates to shearing equipment technical field more specifically, relate to a kind of cutting-off machine for automobile door panel. BACKGROUND

[0002] Automobile door is to provide the passageway of driver and passenger to vehicle, and insulate outside interference, reduce side impact to some extent, protect passenger. The appearance of car is also related to the modeling of door.

[0003] At present, when repairing automobile door panel, most of automobile repair enterprises use grinding machine as cutting tool, when the local damaged skin of automobile door panel needs to be replaced, grinding machine cutting automobile door panel will produce a large amount of solid debris, which will be splashed and left in the door panel, block the drain hole below the door panel, and also affect the normal work of subsequent door lock and window lifting mechanism, leading to secondary repair in factory, in view of this, we propose a kind of cutting-off machine for automobile door panel. UTILITY MODEL CONTENTS

[0004] 1. TECHNICAL SCHEME

[0005] A kind of cutting-off machine for automobile door panel, including host computer, fixed cutter and moving cutter, the host computer is installed with handle away from fixed cutter one end, the vertical side wall of host computer is installed with side plate, the middle part of side plate is installed with side handle, the side handle is perpendicular to handle design.

[0006] Preferably, the fixed cutter includes cutter body, a middle shaft is installed through the middle part of the cutter body, the host computer drives the moving cutter to rotate around the middle shaft of the fixed cutter, the cutter body extends into the host computer to form a lug, and the lug is detachably connected with the host computer.

[0007] Preferably, the cutter body is provided with a thickening strip at the cutting edge position, the thickening strip is arranged on the side of the cutter body close to the moving cutter, and the end of the thickening strip extends to the tip position of the cutter body.

[0008] Preferably, a blind hole is formed in the middle part of the cutter body away from the moving cutter, a pressing block is detachably installed at the blind hole, and the pressing block is in pressure contact with the vertical side wall of the host computer.

[0009] Preferably, the handle includes a middle rod, a sliding sleeve is sleeved on the outer side of the middle rod, limit rings one and two are installed at both ends of the middle rod, and the sliding sleeve slides between the limit rings one and two.

[0010] Preferably, the sliding sleeve includes an annular sleeve, a counterweight ring is installed at the end of the sleeve close to the host computer, and the limit ring one is designed as a flat end face towards the side of the sliding sleeve.

[0011] Preferably, a convex ring is installed on the circumferential side wall of the middle rod, and an annular groove matched with the convex ring is formed in the inner wall of the sleeve.

[0012] 2. Beneficial effects:

[0013] 1. By optimizing the overall structure, the meshing position of the fixed knife and the moving knife is aligned with the door plate to be cut, so that the fixed knife and the moving knife do not produce debris, and the door plate does not have a large amount of cuttings falling, which is more clean and safe, and the side handle is installed in the middle of the side plate, which is perpendicular to the handle design, the side handle can stabilize the tool to bear the main weight, the handle can control the cutting direction more conveniently, and the use is more stable and fast.

[0014] 2. By setting the sliding sleeve, when the knife body needs to be inserted into the whole door plate for cutting, the sliding sleeve is reciprocally impacted in the direction of the main machine by one hand, and the direction of the handle is held by the other hand, so that the knife body can be hammered into the door plate, the counterweight ring is installed at the end of the sleeve close to the main machine, the impact force is improved, the door plate is quickly penetrated, and the efficiency of the knife body penetrating the door body is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a three-dimensional schematic view of the utility model;

[0016] Figure 2 is another angle structure schematic view of the utility model;

[0017] Figure 3 is a split schematic view of the local structure of the utility model;

[0018] Figure 4 is a cut schematic view of part of the structure of the utility model.

[0019] Explanation of reference numerals in the drawing:

[0020] Main machine 1;Fixed knife 2;Moving knife 3;Knife body 31;Lug 32;Thickening strip 33;Handle 4;Middle rod 41;Limiting ring one 42;Limiting ring two 43;Convex ring 44;Side handle 5;Sliding sleeve 6;Sleeve 61;Counterweight ring 62;Ring groove 63;Resist block 7;Side plate 9. DETAILED DESCRIPTION

[0021] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeving / connection", "connection" and the like should be broadly understood, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected;Can be mechanical connection, can also be electrical connection;Can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0022] The embodiment provides a cutting machine for automobile door plate, which refers to Figures 1-4, including the host 1, the fixed knife 2 and the moving knife 3, the host 1 is built-in motor, motor through the transmission assembly driving moving knife 3 rotation, installation, handle 4 adopts hollow structure, the host 1 wire harness via handle 4 and external power supply connection, power supply for motor, use, the host 1 away from the fixed knife 2 one end is provided with handle 4, hand handle 4, the fixed knife 2 and the meshing position of moving knife 3 is aligned with the need to cut the door plate, cutting mode, the fixed knife 2 and the moving knife 3 will not produce debris, door plate will not have a large amount of cutting drop, more clean and safe, handle 4 can control the moving direction of cutting plate, and, in cutting plate, for better control of cutting direction, in the host 1 vertical side wall is provided with side plate 9, at the same time, the side plate 9 is provided with side handle 5 in the middle, the other hand can hold side handle 5, both hands hold, share the weight, reduce the tool shaking of long time use, better control of cutting work, need to note that, side handle 5 is perpendicular to handle 4 design, in this way, the hand holding side handle 5 can stabilize the tool to bear the main weight, and the hand holding handle 4 can be pushed left and right, more convenient control of cutting direction, use more stable and fast.

[0023] Referring to Figure 3 , the fixed knife 2 includes the blade body 31, the blade body 31 adopts sheet-shaped structure, and is arranged vertically perpendicular to the side handle 5, which can avoid shielding the detection position and facilitate observation of the cutting process, at the same time, the blade body 31 is provided with a middle shaft penetratingly installed in the middle, the middle shaft is arranged parallel to the side handle 5, so that the moving knife 3 is arranged in parallel and close to the fixed knife 2, and the host 1 drives the moving knife 3 to rotate around the middle shaft of the fixed knife 2, the moving knife 3 can reciprocally approach and move away from the fixed knife 2 to cut the door plate, the blade body 31 extends into the host 1 to form an ear 32, the ear 32 is provided with a bolt hole, and the host 1 is provided with a bolt blind hole at the corresponding position, so that the ear 32 and the host 1 can be detachably connected through the bolt, which is convenient for replacing the worn moving knife 3 and fixed knife 2 and maintaining conveniently.

[0024] Referring to Figure 3 , the blade body 31 is provided with a thickened strip 33 at the blade opening position, so that the strength of the blade opening position is higher and the replacement period is prolonged, and the thickened strip 33 is arranged on the side of the blade body 31 close to the moving knife 3, so as to ensure that the blade opening of the blade body 31 will not be quickly worn during cutting, at the same time, the end of the thickened strip 33 extends to the tip position of the blade body 31, for the damage of the door plate hole, the hole needs to be expanded and a new iron sheet is welded on the expanded position, so that the repair of the door plate can be completed, when the hole needs to be expanded, the tool can be quickly rushed to the door plate to insert the blade body 31 into the hole by impact, the thickened strip 33 can improve the strength of the tip of the blade body 31, so as to ensure that the tip of the blade body 31 will not be broken under impact.

[0025] Referring to Figure 3The middle part of the cutter body 31 is provided with a blind hole (not shown in the figure because of the shielding of the pressing block 7 and the bolt) on the side away from the moving cutter 3, and when installed, the bolt is fixed on the blind hole, so that the pressing block 7 can be detachably installed at the blind hole, wherein the pressing block 7 is in contact with the vertical side wall of the main machine 1, and when the cutter body 31 is inserted into the door plate by impact, the supporting lug 32 can assist in supporting the cutter body 31, so that the impact on the cutter body 31 is not completely transmitted to the position of the supporting lug 32, and the stability of installation is ensured.

[0026] With reference to Figure 4 The handle 4 comprises a middle rod 41, wherein the outer side of the middle rod 41 is sleeved with a sliding sleeve 6, and the circumferential outer wall of the middle rod 41 is provided with a smooth surface, so that the sliding sleeve 6 can slide conveniently. When it is required to insert the cutter body 31 into the door plate for shearing, but the hole is relatively small, direct impact may be off target and damage the surrounding door plate. At this time, the cutter body 31 can be pressed at the position to be cut, the sliding sleeve 6 is impacted towards the main machine 1 by one hand, and the direction is held by the other hand. At this time, the sliding sleeve 6 slides between the limiting ring one 42 and the limiting ring two 43, and the reciprocating impact on the main machine 1 can make the cutter body 31 impact into the door plate, which is more accurate.

[0027] With reference to Figure 4 The sliding sleeve 6 comprises a ring-shaped sleeve 61, the inner wall of the sleeve 61 is smooth, which can reduce friction, ensure smooth sliding, reduce heat generation and ensure stable use for many times. In addition, the sleeve 61 is provided with a counterweight ring 62 at the end close to the main machine 1, which can improve the impact force when impacting, quickly penetrate the door plate, and the side of the limiting ring one 42 towards the sliding sleeve 6 is provided with a flat end face, so that the contact area between the limiting ring one 42 and the sliding sleeve 6 is large when impacting, and the limiting ring one 42 is not easy to deform under impact.

[0028] With reference to Figure 4 The circumferential side wall of the middle rod 41 is provided with a convex ring 44, and the inner wall of the sleeve 61 is provided with a ring groove 63 matched with the convex ring 44. When the impact effect of the sleeve 61 is not used, the sleeve 61 can be clamped on the convex ring 44 through the ring groove 63. At this time, the middle rod 41 and the sleeve 61 can be fixed, and the sleeve 61 plays a role of anti-sleeve at this time, which ensures the anti-slip when holding the handle 4.

[0029] It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the utility model and do not limit the utility model. Without departing from the spirit and scope of the utility model, the utility model can also have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A cutting-off machine for automobile door panels, comprising a main machine (1), a fixed blade (2) and a moving blade (3), characterized in that: The main machine (1) is provided with a handle (4) at one end away from the fixed knife (2), and a side plate (9) is installed on the vertical side wall of the main machine (1), and a side handle (5) is installed in the middle of the side plate (9), and the side handle (5) is perpendicular to the handle (4).

2. The cutting machine for an automobile door panel according to claim 1, characterized by: The fixed knife (2) comprises a knife body (31), a middle shaft is installed through the middle of the knife body (31), the main machine (1) drives the moving knife (3) to rotate around the middle shaft of the fixed knife (2), the knife body (31) extends into the main machine (1) to form a supporting lug (32), and the supporting lug (32) is detachably connected with the main machine (1).

3. The cutting machine for an automobile door panel according to claim 2, characterized by: The knife body (31) is provided with a thickening strip (33) at the position of the open blade, the thickening strip (33) is arranged on the side of the knife body (31) close to the moving knife (3), and the end of the thickening strip (33) extends to the sharp end position of the knife body (31).

4. The cutting machine for an automobile door panel according to claim 3, characterized by: A blind hole is formed in the middle of the knife body (31) away from the moving knife (3), and a pressing block (7) is detachably installed in the blind hole, and the pressing block (7) is in pressure contact with the vertical side wall of the main machine (1).

5. The cutting machine for an automobile door panel according to claim 4, characterized by: The handle (4) comprises a middle rod (41), the outer side of the middle rod (41) is sleeved with a sliding sleeve (6), and the two ends of the middle rod (41) are provided with a limiting ring one (42) and a limiting ring two (43), and the sliding sleeve (6) slides between the limiting ring one (42) and the limiting ring two (43).

6. The cutting machine for an automobile door panel according to claim 5, characterized by: The sliding sleeve (6) comprises an annular sleeve (61), the sleeve (61) is provided with a counterweight ring (62) at one end close to the main machine (1), and the limiting ring one (42) is provided with a flat end face on the side facing the sliding sleeve (6).

7. The cutting machine for an automobile door panel according to claim 6, characterized by: The middle rod (41) is provided with a convex ring (44) on the circumferential side wall, and the inner wall of the sleeve (61) is provided with a ring groove (63) matched with the convex ring (44).