Stamping die for bumper bar assembly

Abstract

The utility model discloses a stamping die for an anti-collision rod assembly. The stamping die comprises a first die holder, a second die holder and a pressing and abutting piece. The first die holder is provided with a forming groove; the second die base comprises a base body, a forming block and a punch, the base body can move close to or away from the first die base, the forming block is arranged on the side, close to the punch, of the base body, the base body can stretch into the forming groove when close to the first die base and is provided with a magnetic attraction part, and the punch can be magnetically attracted by the magnetic attraction part, conduct magnetic force and be separated from the magnetic attraction part; the pressing and abutting piece is elastically connected to the side, provided with the forming block, of the base body and used for elastically pressing and abutting the object to the first die base. According to the scheme, the worn punch can be taken down from the forming block, a new punch can be rapidly replaced, adverse effects on punching and trimming are avoided, operation is easy and convenient, residual materials and products can be rapidly separated, residual material cleaning is more convenient, and practicability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-collision rod stamping dies, in particular to a stamping die for an anti-collision rod assembly. Background Art

[0002] As a component on the car door, the anti-collision bar can absorb energy from the outside of the car to reduce the personal danger of the driver and passengers. At present, the anti-collision bar is usually stamped and formed by one or more processes of a stamping die. For example, patent CN202239223U discloses an anti-collision bar mold, the middle axial direction of the upper mold is provided with a stamping die groove upper piece, and the stamping die groove upper piece is symmetrically distributed with at least two positioning pin holes, and the middle axial direction of the lower mold is provided with a stamping die groove lower piece corresponding to the stamping die groove upper piece, and the stamping die groove lower piece is provided with a pressing block (forming block) that can cooperate with the stamping die groove upper piece for pressing and positioning forming, so as to form the workpiece in one time, improve production efficiency and reduce costs.

[0003] The stamping die in the existing patents is generally provided with a punch on the pressing block, and punching and cutting are performed with the help of the punch. However, the anti-collision rod is usually made of steel, which is relatively hard and has high tensile strength, resulting in easy wear of the punch, which has an adverse effect on punching and cutting operations. Utility Model Content

[0004] The purpose of the utility model is to overcome the above-mentioned technical deficiencies and to propose a stamping die for an anti-collision rod assembly to solve the technical problem in the prior art that the anti-collision rod material is relatively hard and has high tensile strength, which causes the punch to be easily worn and has an adverse effect on operations such as punching and cutting.

[0005] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a stamping die for an anti-collision rod assembly, comprising:

[0007] The first die base is provided with a forming groove;

[0008] A second die base, comprising a base body, a forming block and a punch, wherein the base body can move close to and away from the first die base, the forming block is arranged on a side of the base body close to the punch, and can extend into the forming groove when the base body is close to the first die base, and is provided with a magnetic attraction portion, the punch can be magnetically attracted by the magnetic attraction portion and conduct magnetic force, and can be separated from the magnetic attraction portion; and

[0009] A pressing member is elastically connected to a side of the base body where the forming block is provided, and is used to elastically press the object against the first mold base.

[0010] In some embodiments, the forming block is provided with a mounting groove, and the magnetic attraction portion is provided in the mounting groove;

[0011] The punch includes a mounting seat and a cutting head. The mounting seat is connected to the cutting head and is installed in the mounting groove. The mounting seat can be magnetically attracted by the magnetic attraction portion and can be separated from the magnetic attraction portion when driven by an external force toward the first die base, and can transmit magnetic force to the cutting head.

[0012] In some embodiments, the magnetic attraction portion is a magnet disposed on the inner wall of the mounting groove, the mounting seat is a steel mounting seat so as to be magnetically attracted to and detached from the magnet, and the cutting head is a steel cutting head.

[0013] In some embodiments, the pressing member includes a pressing seat and a compression spring, wherein the compression spring connects the pressing seat and the seat body and is located on a side of the seat body close to the first mold seat, so that the pressing seat can elastically press against the object.

[0014] In some embodiments, a rubber pad is provided on one side of the pressing seat close to the first mold seat.

[0015] In some embodiments, the first mold base is provided with a positioning hole, and the positioning hole and the molding groove are located on the same side of the first mold base;

[0016] The second mold base further includes a positioning rod, which is connected to the base body and corresponds to the positioning hole. When the base body is close to the first mold base, the positioning rod can be sequentially inserted into the hole of the object and the positioning hole;

[0017] The compression spring is sleeved outside the positioning rod, and the pressure-resisting seat is provided with an escape channel for the positioning rod to pass through, so as to be able to follow the compression spring and elastically move along the axial direction of the positioning rod.

[0018] In some embodiments, a side of the seat body close to the first mold seat is provided with an avoidance groove, one end of the positioning rod is connected to the bottom of the avoidance groove, and one end of the compression spring away from the pressing seat is connected to the bottom of the avoidance groove;

[0019] Wherein, when the seat body is close to the first mold seat, the pressing seat can be retracted into the avoidance groove following the compression spring.

[0020] In some embodiments, a limiting ring is provided at one end of the avoidance channel close to the seat body, and a stopping protrusion is provided at one end of the positioning rod away from the seat body, and the stopping protrusion stops at the side of the limiting ring away from the seat body to limit the pressure seat from separating from the positioning rod in a direction away from the seat body.

[0021] In some embodiments, the seat body is provided with a connecting screw hole corresponding to the positioning hole, and the positioning rod is provided with an external thread at one end close to the seat body so that it can be screwed into the connecting screw hole, so that the positioning rod and the seat body can be detachably connected, and the compression spring is elastically pressed against the seat body at one end away from the pressing seat.

[0022] In some embodiments, a guide rod is provided on a side of the first mold base close to the base body, and the base body is provided with a guide hole corresponding to the guide rod. When the base body is close to the first mold base, the guide rod extends into the guide hole.

[0023] Compared with the prior art, in the stamping die of the anti-collision bar assembly provided by the utility model, since the punch is magnetically attracted to the forming block, the punch in the present solution can be removed from the forming block after being worn out after a certain period of use, and a new punch can be quickly replaced to avoid adverse effects on punching and trimming, and the operation is simple and convenient. When stamping the anti-collision bar, the steel plate to be stamped is first placed on the notch end edge of the forming groove of the first die seat, and then the seat body of the second die seat is driven to gradually approach the first die seat. In the process of the seat body approaching the first die seat, the pressing member can first elastically press against the steel plate to play a preliminary limiting role on the steel plate; in the process of the forming block body continuing to approach the first die seat, the steel plate can be pressed into the forming groove, and at the same time, the punch can punch and trim the steel plate to stamp the steel plate into the required product. The residual material punched out from the steel plate can be adsorbed on the punch, and when the seat body is away from the first die seat, the punch can drive the residual material away from the forming groove, and the pressing part continues to press on the formed product to prevent the punch from adsorbing and driving the product, thereby quickly separating the residual material from the product; and cleaning the residual material from the punch is more convenient than picking it out from the forming groove, and is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a stamping die for an anti-collision rod assembly provided in an embodiment of the utility model;

[0025] Figure 2 yes Figure 1 A schematic diagram of the structure of the second die base;

[0026] Figure 3 yes Figure 1 A schematic diagram of the structure of the first die base;

[0027] Figure 4 yes Figure 2 Schematic diagram of the structure of the middle punch;

[0028] Figure 5 yes Figure 2 A schematic diagram of the structure of the middle seat body;

[0029] Figure 6 yes Figure 5 The enlarged schematic diagram of point A in the middle;

[0030] Figure 7 yes Figure 1 A cross-sectional view of the middle pressure member, the positioning rod and the seat body (partial);

[0031] Figure 8 yes Figure 7 Exploded view of the center positioning rod and the pressure seat;

[0032] Fig. 9 It is a structural schematic diagram of an embodiment of processing a steel plate into a product.

[0033] Description of reference numerals:

[0034] 1. First die base; 1a. Forming groove; 1b. Positioning hole; 11. Guide rod; 2. Second die base; 21. Base body; 21a. Avoidance groove; 21b. Connecting screw hole; 21c. Guide hole; 22. Forming block; 22a. Mounting groove; 23. Punch; 231. Mounting seat; 232. Cutting head; 24. Magnetic part; 25. Positioning rod; 251. Stopping protrusion; 3. Pressing member; 31. Pressing seat; 31a. Avoidance channel; 311. Limiting ring; 32. Compression spring; 33. Rubber cushion; 5. Steel plate; 5a. Hole position; 51. Residual material. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0036] In order to solve the technical problem that the material of the anti-collision rod is relatively hard and has high tensile strength, which causes the punch to wear easily and has adverse effects on operations such as punching and cutting, the utility model provides a stamping die for an anti-collision rod assembly, which can remove the worn punch from the forming block and replace it with a new punch more quickly, avoiding adverse effects on punching and cutting, and the operation is simple and convenient.

[0037] See also Figures 1 to 3 , Figures 1 to 3This is a structural schematic diagram of the stamping die of the anti-collision bar assembly in an embodiment of the utility model. The stamping die of the anti-collision bar assembly includes a first die base 1, a second die base 2 and a pressing member 3; the first die base 1 is provided with a molding groove 1a; the second die base 2 includes a base body 21, a molding block 22 and a punch 23, the base body 21 can move close to and away from the first die base 1, the molding block 22 is arranged on a side of the base body 21 close to the punch 23, and can extend into the molding groove 1a when the base body 21 is close to the first die base 1, and is provided with a magnetic attraction part 24, the punch 23 can be magnetically attracted by the magnetic attraction part 24 and conduct magnetic force, and can be separated from the magnetic attraction part 24; the pressing member 3 is elastically connected to the side of the base body 21 provided with the molding block 22, and is used to elastically press the object against the first die base 1.

[0038] In the punching die of the anti-collision bar assembly provided by the utility model, since the punch 23 is magnetically attracted to the forming block 22, the punch 23 in the present solution can be removed from the forming block 22 after being worn out for a certain period of use, and a new punch 23 can be quickly replaced to avoid adverse effects on punching and trimming, and the operation is simple and convenient. When punching the anti-collision bar, the steel plate 5 to be punched is first placed on the notch end edge of the forming groove 1a of the first die seat 1, and then the seat body 21 of the second die seat 2 is driven to gradually approach the first die seat 1. In the process of the seat body 21 approaching the first die seat 1, the pressing member 3 can first elastically press against the steel plate 5 to play a preliminary limiting role on the steel plate 5; in the process of the seat body 21 continuing to approach the first die seat 1, the forming block 22 can press the steel plate 5 into the forming groove 1a, and at the same time, the punch 23 can punch and trim the steel plate 5 to stamp the steel plate 5 into the required product. The residual material 51 punched out from the steel plate 5 can be adsorbed on the punch 23, and when the seat body 21 is away from the first die seat 1, the punch 23 can drive the residual material 51 away from the forming groove 1a, and the pressing part 3 continues to press on the formed product to prevent the punch 23 from adsorbing and driving the product, thereby quickly separating the residual material 51 from the product; and cleaning the residual material 51 from the punch 23 is more convenient than picking out the residual material 51 from the forming groove 1a, and is more practical.

[0039] In one implementation, see Figures 4 to 6 The forming block 22 is provided with a mounting groove 22a, and the magnetic attraction portion 24 is arranged in the mounting groove 22a; the punch 23 includes a mounting seat 231 and a cutting head 232, the mounting seat 231 is connected to the cutting head 232, and is installed in the mounting groove 22a, the mounting seat 231 can be magnetically attracted by the magnetic attraction portion 24, and can be separated from the magnetic attraction portion 24 when driven by an external force toward the first mold base 1, and can transmit magnetic force with the cutting head 232.

[0040] In this embodiment, the mounting seat 231 is inserted into the mounting groove 22a, and the mounting groove 22a can be used to limit the horizontal displacement of the punch 23, thereby improving the operation accuracy of the punch 23, thereby improving the product quality, and the structure is simple and cost-saving. Specifically, in the example of the attached figure, there are three punches 23, and the forming groove 1a is provided with an avoidance space corresponding to each punch 23.

[0041] In one embodiment, the magnetic attraction portion 24 is a magnet disposed on the inner wall of the mounting groove 22 a , the mounting seat 231 is a steel mounting seat 231 so as to be magnetically attracted to and detached from the magnet, and the cutting head 232 is a steel cutting head 232 .

[0042] In this embodiment, a magnet is provided on the inner wall of the mounting groove 22a, and the mounting seat 231 and the cutting head 232 are made of steel material, so that the magnet of the mounting groove 22a can stably adsorb the mounting seat 231, and can transmit magnetic force through the mounting seat 231 and the cutting head 232 to adsorb the residual material 51.

[0043] In one embodiment, see Figure 7 and Figure 8 The pressing member 3 includes a pressing seat 31 and a compression spring 32. The compression spring 32 connects the pressing seat 31 and the seat body 21 and is located on a side of the seat body 21 close to the first mold seat 1, so that the pressing seat 31 can be elastically pressed against the object.

[0044] In this embodiment, the compression spring 32 enables the pressing plate to elastically expand and contract in the direction of approaching and moving away from the first mold base 1, and then to elastically press against the steel plate 5, thereby achieving preliminary positioning of the plate and separation of the product from the residual material 51. The structure is simple and reliable.

[0045] In one embodiment, a rubber cushion 33 is provided on one side of the pressing seat 31 close to the first mold seat 1 .

[0046] In this embodiment, in order to prevent the pressing seat 31 from wearing the product, a rubber cushion 33 is provided on the side of the pressing seat 31 close to the first mold base 1 to improve the product quality.

[0047] In one embodiment, the first mold base 1 is provided with a positioning hole 1b, and the positioning hole 1b and the forming groove 1a are located on the same side of the first mold base 1; the second mold base 2 also includes a positioning rod 25, which is connected to the base body 21 and corresponds to the positioning hole 1b. When the base body 21 is close to the first mold base 1, the positioning rod 25 can be inserted into the hole 5a and the positioning hole 1b of the object in sequence; the compression spring 32 is sleeved on the outside of the positioning rod 25, and the pressure seat 31 is provided with an avoidance channel 31a for the positioning rod 25 to pass through, so that it can follow the compression spring 32 and move elastically along the axial direction of the positioning rod 25.

[0048] In this embodiment, the compression spring 32 is sleeved outside the positioning rod 25, and the positioning rod 25 is also inserted into the avoidance channel 31a of the pressing seat 31, so that the positioning rod 25 can guide the compression spring 32 and the pressing seat 31. At the same time, when the seat body 21 gradually approaches the first mold base 1, the pressing seat 31 squeezes the compression spring 32, so that the positioning rod 25 can extend out of the avoidance channel 31a, and sequentially penetrate the hole 5a of the object (steel plate 5) and the positioning hole 1b of the first mold base 1, further limiting the steel plate 5, improving product quality, and the structure is relatively compact.

[0049] In one of the embodiments, a side of the seat body 21 close to the first mold base 1 is provided with an avoidance groove 21a, one end of the positioning rod 25 is connected to the bottom of the avoidance groove 21a, and one end of the compression spring 32 away from the pressing seat 31 is connected to the bottom of the avoidance groove 21a; wherein, when the seat body 21 is close to the first mold base 1, the pressing seat 31 can retract into the avoidance groove 21a following the compression spring 32.

[0050] In this embodiment, when the forming block 22 completely enters the forming groove 1a, the pressing seat 31 squeezes the compression spring 32 and completely retracts into the avoidance groove 21a, further improving the compactness of the device. Specifically, in this solution, the connecting screw hole 21b is provided at the bottom of the avoidance groove 21a.

[0051] In one embodiment, a limiting ring 311 is provided at one end of the avoidance channel 31a close to the seat body 21, and a stopping protrusion 251 is provided at one end of the positioning rod 25 away from the seat body 21. The stopping protrusion 251 stops at the side of the limiting ring 311 away from the seat body 21 to limit the pressing seat 31 from separating from the positioning rod 25 in a direction away from the seat body 21.

[0052] In this embodiment, the stop protrusion 251 is used to limit the pressure seat 31 from being separated from the positioning rod 25, which facilitates repeated stamping and improves practicality. The two ends of the compression spring 32 can be elastically pressed against the seat body 21 and the pressure seat 31 respectively, thereby improving assembly convenience.

[0053] In one of the embodiments, the seat body 21 is provided with a connecting screw hole 21b corresponding to the positioning hole 1b, and the positioning rod 25 is provided with an external thread at one end close to the seat body 21 so that it can be screwed into the connecting screw hole 21b, so that the positioning rod 25 and the seat body 21 can be detachably connected, and the compression spring 32 is elastically pressed against the seat body 21 at one end away from the pressing seat 31.

[0054] In this embodiment, when the elasticity of the compression spring 32 weakens and fails or the pressure seat 31 is damaged, the positioning rod 25 can be loosened to remove the positioning rod 25 from the seat body 21, and then the compression spring 32 or the pressure seat 31 is removed from the positioning rod 25, and a new compression spring 32 or the pressure seat 31 is replaced, and then the positioning rod 25 is tightened into the connecting screw hole 21b, thereby improving practicality.

[0055] In one embodiment, a guide rod 11 is provided on one side of the first mold base 1 close to the base body 21 , and a guide hole 21 c is provided on the base body 21 corresponding to the guide rod 11 . When the base body 21 is close to the first mold base 1 , the guide rod 11 extends into the guide hole 21 c.

[0056] In this embodiment, a guide rod 11 and a guide hole 21c are provided between the first mold base 1 and the base body 21 to guide the molding block 22 to press into the molding groove 1a, thereby effectively preventing the molding block 22 from deflecting and improving product quality.

[0057] In order to better understand the present invention, the following Figures 1 to 9 The technical solution of the utility model is described in detail:

[0058] When the punch 23 is worn, the operator applies external force to remove the mounting seat 231 of the worn punch 23 from the mounting groove 22a, and installs a new punch 23, which is simple and convenient. At the same time, when stamping the product, first place the steel plate 5 on the edge of the notch of the forming groove 1a, and then drive the seat 21 close to the first die seat 1. At this time, the guide rod 11 is inserted into the guide hole 21c; when the seat 21 continues to approach the first die seat 1, the pressing seat 31 elastically presses against the steel plate 5 and gradually squeezes the above-mentioned compression spring 32. At the same time, the positioning rod 25 gradually extends out of the avoidance channel 31a of the pressing seat 31, and penetrates the hole 5a and the positioning hole 1b of the steel plate 5, until the pressing seat 31 is completely retracted in the avoidance groove 21a; at this time, the forming block 22 and the punch 23 extend into the forming groove 1a to stamp and cut the steel plate 5. The residual material 51 after punching can be adsorbed on the punch 23, and when the seat body 21 is away from the first die seat 1, the punch 23 can drive the residual material 51 away from the forming groove 1a, and the pressing seat 31 continues to press on the formed product to prevent the punch 23 from adsorbing and driving the product, thereby quickly separating the residual material 51 from the product, which has good practicality.

[0059] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A stamping die for an anti-collision rod assembly, characterized in that: include: The first die base is provided with a forming groove; A second die base, comprising a base body, a forming block and a punch, wherein the base body can move close to and away from the first die base, the forming block is arranged on a side of the base body close to the punch, and can extend into the forming groove when the base body is close to the first die base, and is provided with a magnetic attraction portion, the punch can be magnetically attracted by the magnetic attraction portion and conduct magnetic force, and can be separated from the magnetic attraction portion; and A pressing member is elastically connected to a side of the base body where the forming block is provided, and is used to elastically press the object against the first mold base.

2. The stamping die of the anti-collision bar assembly according to claim 1, characterized in that: The forming block is provided with a mounting groove, and the magnetic attraction portion is arranged in the mounting groove; The punch includes a mounting seat and a cutting head. The mounting seat is connected to the cutting head and is installed in the mounting groove. The mounting seat can be magnetically attracted by the magnetic attraction portion and can be separated from the magnetic attraction portion when driven by an external force toward the first die base, and can transmit magnetic force to the cutting head.

3. The stamping die of the anti-collision bar assembly according to claim 2, characterized in that: The magnetic attraction portion is a magnet arranged on the inner wall of the mounting groove, the mounting seat is a steel mounting seat so as to be magnetically attracted and detached from the magnet, and the cutting head is a steel cutting head.

4. The stamping die of the anti-collision bar assembly according to claim 1, characterized in that: The pressing member includes a pressing seat and a compression spring. The compression spring connects the pressing seat and the seat body and is located on a side of the seat body close to the first mold seat, so that the pressing seat can elastically press against the object.

5. The stamping die of the anti-collision bar assembly according to claim 4, characterized in that: A rubber cushion is provided on one side of the pressing seat close to the first mold seat.

6. The stamping die of the anti-collision bar assembly according to claim 4, characterized in that: The first mold base is provided with a positioning hole, and the positioning hole and the forming groove are located on the same side of the first mold base; The second mold base further includes a positioning rod, which is connected to the base body and corresponds to the positioning hole. When the base body is close to the first mold base, the positioning rod can be sequentially inserted into the hole of the object and the positioning hole; The compression spring is sleeved outside the positioning rod, and the pressure-resisting seat is provided with an escape channel for the positioning rod to pass through, so as to be able to follow the compression spring and move elastically along the axial direction of the positioning rod.

7. The stamping die of the anti-collision bar assembly according to claim 6, characterized in that: A side of the seat body close to the first mold seat is provided with an avoidance groove, one end of the positioning rod is connected to the bottom of the avoidance groove, and one end of the compression spring away from the pressing seat is connected to the bottom of the avoidance groove; Wherein, when the seat body is close to the first mold seat, the pressing seat can be retracted into the avoidance groove following the compression spring.

8. The stamping die for the anti-collision bar assembly according to claim 6, characterized in that: A limiting ring is provided at one end of the avoidance channel close to the seat body, and a stopping protrusion is provided at one end of the positioning rod away from the seat body. The stopping protrusion stops at a side of the limiting ring away from the seat body to limit the pressure seat from separating from the positioning rod in a direction away from the seat body.

9. The stamping die of the anti-collision bar assembly according to claim 8, characterized in that: The seat body is provided with a connecting screw hole corresponding to the positioning hole, and the positioning rod is provided with an external thread at one end close to the seat body so that it can be screwed into the connecting screw hole, so that the positioning rod and the seat body can be detachably connected, and the compression spring is elastically pressed against the seat body at one end away from the pressing seat.

10. The stamping die of the anti-collision bar assembly according to claim 1, characterized in that: A guide rod is provided on one side of the first mold base close to the base body, and a guide hole is provided on the base body corresponding to the guide rod. When the base body is close to the first mold base, the guide rod extends into the guide hole.

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