CN218016112U

CN218016112U - Bumper bar cutting device

Info

Publication number: CN218016112U
Application number: CN202221173039.XU
Authority: CN
Inventors: 廖海鹏; 马飞虓
Original assignee: Ningbo Yihe Automation Technology Co ltd
Current assignee: Ningbo Yihe Automation Technology Co ltd
Priority date: 2022-05-16
Filing date: 2022-05-16
Publication date: 2022-12-13
Anticipated expiration: 2032-05-16

Abstract

The utility model discloses a crash bar cutting device, which comprises a fixed seat, a clamping module, a cutting module and a crash bar; the clamping module and the cutting module are fixedly connected with the fixing seat, and an upper pressing block and a lower pressing block for clamping the anti-collision rod are arranged in the clamping module; the anti-collision rod is provided with a through cutting groove and a processing groove corresponding to the cutting groove at intervals along the length direction; the cutting die set is provided with a cutting knife which is used for extending into the cutting groove and the processing groove to cut off the crash bar; the utility model discloses the innovation go out the processing groove and cut off the groove on the steel band promptly before the roll welding shaping, cut off from the processing groove behind the roll welding shaping and can form required notch, need not the follow-up punching press of carrying on again, the location is convenient, and punching press efficiency and precision are higher, reduce the position of atress when cutting off simultaneously, have made things convenient for the cutting greatly, have improved the section quality.

Description

Bumper bar cutting device

Technical Field

The utility model relates to an automobile parts field especially relates to an anti-collision rod cutting device.

Background

When the automobile is impacted on the side, the door is easy to be impacted and deformed, thereby directly injuring passengers in the automobile. In order to improve the safety performance of automobiles and reduce the harm caused by collision, a car company places two very firm steel beams in the middle of the interlayers of two side doors of the automobiles, which are commonly called crash bars; the anti-collision principle is as follows: when the side door is impacted, the firm anti-collision rod can greatly reduce the deformation degree of the side door, so that the injury of the automobile to passengers in the automobile caused by the impact of the automobile can be reduced; the bumper bar is an important part for protecting personal safety in an automobile door, connecting ends are required to be arranged on two sides of the bumper bar, and the existing automobile bumper bar is a high-strength welded pipe, so that the bumper bar is too hard in material, high in cutting difficulty, easy to bend and deform during cutting and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a crash bar cutting device is provided to solve the not good problem of prior art cutting effect.

In order to solve the technical problem, the utility model provides a crash bar cutting device which comprises a fixed seat, a clamping module, a cutting module and a crash bar; the clamping module and the cutting module are fixedly connected with the fixing seat, and an upper pressing block and a lower pressing block for clamping the anti-collision rod are arranged in the clamping module; the anti-collision rod is provided with a through cutting groove and a processing groove corresponding to the cutting groove at intervals along the length direction; the cutting die set is provided with a cutting knife which is used for extending into the cutting groove and the processing groove to cut off the anti-collision rod; the cutting knife is characterized in that the front end of the cutting knife is provided with an approximately trapezoidal cutting part, and the cutting part is provided with a first cutting edge and a second cutting edge.

The cutting groove and the processing groove are both made of steel strips through stamping.

The cutting knife and the horizontal plane form a fixed process inclination angle

The cutting module comprises a sliding block and a cutting oil cylinder; the sliding block is connected with the fixed seat in a sliding manner, and the cutting knife is fixedly connected with the sliding block; the cutting oil cylinder is fixedly connected with the fixed seat, and the front end of a piston rod of the cutting oil cylinder is fixedly connected with the sliding block.

The clamping module further comprises a clamping oil cylinder; the lower pressing block is fixedly connected with the fixed seat, and the upper pressing block is slidably connected with the lower pressing block; the clamping oil cylinder is fixedly connected with the fixed seat, the front end of a piston rod of the clamping oil cylinder is fixedly connected with the upper pressing block, and the axis of the piston rod of the clamping oil cylinder is parallel to the cutting knife; when the piston rod is completely extended out, the upper pressing block presses the anti-collision rod on the lower pressing block.

The upper pressing block and the lower pressing block can be detachably connected with a first pressing block and a second pressing block, and a pressing groove used for being attached to the surface of the anti-collision rod is formed in the opposite surface of each first pressing block and each second pressing block; every first compact heap and second compact heap all are equipped with the cutting clearance that is used for the cutting knife to pass through.

After the structure more than adopting, compared with the prior art, the utility model, have following advantage: the utility model discloses the processing groove and cut off the groove on the steel band before the roll welding shaping of innovation promptly, cut off from the processing groove after the roll welding shaping and can form required notch, need not follow-up punching press again, the location is convenient, and punching press efficiency and precision are higher, reduce the position of atress when cutting off simultaneously, have made things convenient for the cutting greatly, have improved the section quality; the utility model discloses a first compact heap and the second compact heap of connection can be dismantled in the setting, change when cutting off different model crash bars first compact heap and second compact heap can, the suitability is good, and first compact heap 22 and second compact heap 23 can process alone, the clamping of being convenient for, and the machining precision is high.

Drawings

Fig. 1 is a schematic three-dimensional structure of the present invention;

fig. 2 is a schematic view of the three-dimensional structure of the cutting module of the present invention;

FIG. 3 is a schematic structural diagram of the cutting module of the present invention;

FIG. 4 is a schematic view of the clamping module of the present invention;

FIG. 5 is a schematic view of the structure of the crash bar of the present invention;

fig. 6 is a schematic diagram of the cutting process of the present invention.

The reference signs are: 1. a fixed seat; 2. a clamping module; 3. cutting off the module; 4. an anti-collision bar; 5. pressing the blocks; 6. pressing the block; 41. cutting off the groove; 42. processing a tank; 31. a cutting knife; 32. a cutting section; 33. a first cutting edge; 34. a second cutting edge; 35. a slider; 36. cutting off the oil cylinder; 21. clamping the oil cylinder; 22. a first hold-down block 22; 23. a second compact block; 24. and cutting the gap.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 3, the utility model of the utility model comprises a fixed seat 1, a clamping module 2, a cutting module 3 and a crash bar 4; the clamping module 2 and the cutting module 3 are both fixedly connected with the fixed seat 1, and an upper pressing block 5 and a lower pressing block 6 for clamping the bumper bar 4 are arranged in the clamping module 2; the anti-collision rod 4 is provided with a cutting groove 41 and a processing groove 42 corresponding to the cutting groove 41 at intervals along the length direction; the cutting module 3 is provided with a cutting knife 31 which is used for extending into the cutting groove 41 and the processing groove 42 to cut off the anti-collision rod 4; the front end of the cutting knife 31 is provided with an approximately trapezoidal cutting part 32, and the cutting part 32 is provided with a first cutting edge 33 and a second cutting edge 34.

The cutting groove 41 and the processing groove 42 are both made of steel strips through stamping; in the traditional process, most of the anti-collision rods are placed on a special punch press to punch required notches after being formed and cut off, the steel strip is punched with the processing groove 42 before roll welding forming in the embodiment, the required notches can be formed by cutting off the processing groove 42, a punching grinding tool does not need to be designed subsequently, positioning is convenient, punching efficiency and precision are higher, cutting is convenient, and the quality of the section is improved; the cutting groove 41 is punched in advance, so that the stress position during cutting is reduced, the cutting difficulty is greatly reduced, and the cutting deformation can be effectively prevented.

The cutting knife 31 and the horizontal plane form a fixed technological inclination angle.

It should be noted that the width of the cutting groove 41 should be slightly larger than the width of the cutting blade 31, so that the cutting blade 31 can extend into the cutting groove, and the front end of the cutting portion 32 should be small enough to extend into the processing groove 42 through the cutting groove 41, and the process inclination angle of the cutting blade 31 should be derived from the parameters of the processing groove 42, so as to ensure that the first cutting edge 33 and the second cutting edge 34 respectively abut against the middle portions of the upper processing surface 421 and the lower processing surface 421 of the processing groove 42 when cutting starts, and the process inclination angle in this embodiment is preferably 75 ° and is stressed uniformly compared with the conventional cutting method; processing is convenient, prevents that burr or fracture phenomenon from appearing in the fracture, has improved product quality.

The cutting module 3 comprises a sliding block 35 and a cutting oil cylinder 36; the sliding block 35 is connected with the fixed seat 1 in a sliding manner, and the cutting knife 31 is fixedly connected with the sliding block 35; the cutting oil cylinder 36 is fixedly connected with the fixed seat 1, and the front end of a piston rod of the cutting oil cylinder 36 is fixedly connected with the sliding block 35; the path of the cutting knife 31 is limited by the sliding block 35 which is connected with the fixed seat 1 in a sliding way, and the influence of the assembly error of the cutting oil cylinder 36 on the cutting work is prevented.

The clamping module 2 further comprises a clamping oil cylinder 21; the lower pressing block 6 is fixedly connected with the fixed seat 1, and the upper pressing block 5 is connected with the lower pressing block 6 in a sliding manner; the clamping oil cylinder 21 is fixedly connected with the fixed seat 1, the front end of a piston rod of the clamping oil cylinder 21 is fixedly connected with the upper pressing block 5, and the axis of the piston rod of the clamping oil cylinder 21 is parallel to the cutting knife 31; when the piston rod is completely extended out, the upper pressing block 5 presses the anti-collision rod 4 on the lower pressing block 6; the axis of the piston rod of the clamping oil cylinder 21 is parallel to the cutting knife 31; the axis of the piston rod is parallel to the cutting knife 31, so that the pressing force is parallel to the direction of the cutting force, the probability of cutting deformation is reduced, and the product quality is improved.

A first pressing block 22 and a second pressing block 23 are detachably connected in the upper pressing block 5 and the lower pressing block 6, and a pressing groove used for being attached to the surface of the anti-collision rod 4 is formed in the opposite surface of each of the first pressing block 22 and the second pressing block 23; a cutting gap 24 for the passing of a cutting knife 31 is arranged between each first pressing block 22 and each second pressing block 23; the cutting gap 24 is used for passing a cutting knife 31; first compact heap 22 and second compact heap 23 are all can dismantle the connection, cut off when different models crash bar change first compact heap 22 and second compact heap 23 can, the suitability is good, and first compact heap 22 and second compact heap 23 can be processed alone, the clamping of being convenient for, and the machining precision is high.

The specific working process of the embodiment is as follows: firstly, a feeding mechanism conveys an impact bar 4 to a proper position in a groove between an upper pressing block 5 and a lower pressing block 6 as shown in figure 1, then a piston rod of a clamping oil cylinder 21 extends out, so that pressing grooves of two first pressing blocks 22 and two second pressing blocks 23 are tightly attached to the impact bar 4 to tightly press the impact bar, then a piston rod of a cutting oil cylinder 36 extends out, a cutting knife 31 sequentially extends into a cutting groove 41 and a processing groove 42 as shown in figure 6, and as the cutting knife 31 gradually moves towards the direction of the impact bar 4, a first cutting edge 33 and a second cutting edge 34 are matched to cut the impact bar 4 from the cutting groove 41, and then the device resets, so that the cutting operation is completed.

The above description is only for the preferred embodiment of the present invention, but it should not be understood as limiting the claims, and the present invention may have other variations and modifications, not limited to the above structure. In summary, all changes that can be made within the scope of the independent claims of the present invention are within the scope of the present invention.

Claims

1. A crash bar cutting device is characterized by comprising a fixed seat (1), a clamping module (2), a cutting module (3) and a crash bar (4); the clamping module (2) and the cutting module (3) are fixedly connected with the fixed seat (1), and an upper pressing block (5) and a lower pressing block (6) for clamping the bumper bar (4) are arranged in the clamping module (2); the anti-collision rod (4) is provided with a through cutting groove (41) and a processing groove (42) corresponding to the cutting groove (41) at intervals along the length direction; the cutting module (3) is provided with a cutting knife (31) which is used for extending into the cutting groove (41) and the processing groove (42) to cut off the bumper bar (4); the front end of the cutting knife (31) is provided with a trapezoid-like cutting part (32), and a first cutting edge (33) and a second cutting edge (34) are arranged on the cutting part (32).

2. The crash bar cutting device according to claim 1, wherein the cutting groove (41) and the processing groove (42) are each made of a steel strip by stamping.

3. The crash bar severing device according to claim 1, characterized in that the cutting knives (31) form a fixed process inclination to the horizontal plane.

4. The crash bar severing device according to claim 1, characterized in that said severing module (3) comprises a sliding block (35) and a severing cylinder (36); the sliding block (35) is connected with the fixed seat (1) in a sliding mode, and the cutting knife (31) is fixedly connected with the sliding block (35); the cutting oil cylinder (36) is fixedly connected with the fixed seat (1), and the front end of a piston rod of the cutting oil cylinder (36) is fixedly connected with the sliding block (35).

5. The crash bar cutting device according to claim 1, wherein a first pressing block (22) and a second pressing block (23) are detachably connected in the upper pressing block (5) and the lower pressing block (6), and a pressing groove for being attached to the surface of the crash bar (4) is formed in each of the opposite surfaces of the first pressing block (22) and the second pressing block (23); a cutting gap (24) for a cutting knife (31) to pass through is arranged between each first pressing block (22) and each second pressing block (23).