CN216175850U - One-time bending forming die for narrow edge of box-shaped hollow part - Google Patents
One-time bending forming die for narrow edge of box-shaped hollow part Download PDFInfo
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- CN216175850U CN216175850U CN202122068255.XU CN202122068255U CN216175850U CN 216175850 U CN216175850 U CN 216175850U CN 202122068255 U CN202122068255 U CN 202122068255U CN 216175850 U CN216175850 U CN 216175850U
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Abstract
The die comprises an upper die body, a lower die body and a driving mechanism, wherein the upper die body can move up and down relative to the lower die body under the driving of an upper die body driving part, the upper die body comprises a positioning plate, a bending block guide plate, an eccentric bending block and a bending block fixing needle, the lower die plate comprises a stripping block, a positioning block, a lower ejector block, two limiting blocks and a spring, the driving mechanism comprises a flat plate, the flat plate is provided with a moving block and a driving rod, when the upper die body moves downwards relative to the lower die body, the eccentric bending block is stressed to bend the box-shaped hollow part, and the lower ejector block extrudes the narrow edge of the box-shaped hollow part to form flattened threads. The utility model has the advantages that: the two processes of bending and leveling can be simultaneously achieved by only using one set of die, so that the production cost is reduced, and the production efficiency and the production benefit are improved.
Description
Technical Field
The utility model relates to the technical field of hollow part manufacturing, in particular to a die for one-step bending and molding a narrow edge of a box-shaped hollow part.
Background
The original Chinese patent with the application number of CN202010487728.7 named as 'connecting device of floating assembly and use method thereof' of the applicant discloses a connecting device of a floating assembly, which comprises an upper die body and a lower die body, wherein the upper die body is connected with an upper die body driving part, the upper die body is driven by the upper die body driving part to move up and down relative to the lower die body, and the connecting device is characterized in that: the lower die body is provided with a positioning part which can position the sheet metal part on the lower die body and position the nut part in an inner cavity between wing plates of the sheet metal part, a driving mechanism which can open the positioning part so as to take out or load the sheet metal part and the nut part from the positioning part, a modeling part which can be linked with the upper die body and press the wing plates to bend the sheet metal part loaded into the nut part into a sheet metal box body, and a modeling part resetting mechanism which can reset the modeling part when the upper die body is separated from the modeling part, wherein the driving mechanism and the upper die body driving part are respectively connected with a switch and a power supply. The patent has the advantages that: realize the non-rigid connection of sheet metal component and nut spare, make the subassembly that floats that satisfies the processing requirement. However, the forming process in the device is to pre-bend and then flatten, and two sets of die sleeves are needed to complete the whole forming process, so that the production efficiency of the product is low, and the production cost of the product is high, so that the device needs to be further improved.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a die for one-time bending and forming of a narrow edge for manufacturing a box-shaped hollow part, which can be bent and formed at one time, improves the production efficiency of products and reduces the production cost of the products.
The technical scheme adopted by the utility model for solving the technical problems is as follows: a mold for manufacturing a narrow edge of a box-shaped hollow part by one-step bending molding comprises an upper mold body, a lower mold body and a driving mechanism, wherein the upper mold body is connected with a driving part of the upper mold body, the upper mold body can move up and down relative to the lower mold body under the driving of the driving part of the upper mold body, the upper mold body comprises a positioning plate, a bending block guide plate, two eccentric bending blocks which are bilaterally symmetrical and two bending block fixing needles, the bending block guide plate and the bending block fixing needles are fixed on the positioning plate, the eccentric bending blocks are hollow blocks with notches, the height of the notches is more than or equal to the height of a convex part of the nut part of the box-shaped hollow part, each eccentric bending block comprises an arc surface, a plane and a bottom surface, irregular notches matched with the arc surfaces are arranged at the bottoms of the bending block guide plates, the space of the irregular notches is more than the volume of the eccentric bending blocks, and the shape of the bottom surface is matched with the shape of a wing plate of the box-shaped hollow part, the front and back surfaces of the eccentric bending block are respectively provided with symmetrical arc-shaped notches, the bending block fixing needle penetrates through the arc-shaped notches to be movably connected with the eccentric bending block, and the driving mechanism and the upper module driving part are respectively connected with the motor.
The driving mechanism comprises a flat plate, the flat plate is provided with a moving block and a driving rod, one end of the moving block is provided with a core rod, the other end of the moving block is fixedly connected with the driving rod, and the driving rod is connected with an air cylinder or an oil cylinder.
The lower template comprises a stripping block, a positioning block, two lower ejection blocks in bilateral symmetry, two limiting blocks and a spring, wherein the stripping block is provided with a square notch, the cross section of the square notch is larger than or equal to the maximum cross section of the lower ejection block, the positioning block is provided with two positioning pins in front-back symmetry and two notches in bilateral symmetry for a core rod to pass through, the positioning block is connected with the flat plate, the top of the lower ejection block is a wedge with a sharp upper end and a wide lower end, the top of the wedge is a circular arc, a wedge-shaped extrusion surface is provided with threads, and the spring is arranged below the stripping block and the flat plate respectively.
The front end of the bending block fixing needle is provided with a limiting nut, and the length of the bending block fixing needle is larger than that of the eccentric bending block.
Compared with the prior art, the utility model has the advantages that: the two processes of bending and leveling can be simultaneously achieved by only using one set of die, so that the production cost is reduced, and the production efficiency is improved.
Drawings
FIG. 1 is a perspective view of the present embodiment;
FIG. 2 is a front view of the present embodiment before extrusion;
FIG. 3 is a front view of the present embodiment when extruded;
FIG. 4 is a perspective view of the box-shaped hollow member before extrusion;
FIG. 5 is a perspective view of a box-shaped hollow member after extrusion;
FIG. 6 is a perspective view of an eccentric bending block;
fig. 7 is a perspective view of another angle of the present embodiment.
Detailed Description
The utility model is described in further detail below with reference to the accompanying examples.
As shown in fig. 1 to 7, the mold for bending and forming a narrow edge of a box-shaped hollow part at one time in this embodiment includes an upper mold body 1, a lower mold body 2 and a driving mechanism 3, the upper mold body 1 is connected with a driving part of the upper mold body, the upper mold body 1 can move up and down relative to the lower mold body 2 under the driving of the driving part of the upper mold body, the upper mold body 1 includes a positioning plate 11, a bending block guide plate 12, two eccentric bending blocks 13 that are bilaterally symmetric and two bending block fixing needles 14, the bending block guide plate 12 and the bending block fixing needles 14 are fixed on the positioning plate 11, the eccentric bending block 13 is a hollow block with a notch 134, the height of the notch 134 is greater than or equal to the height of a convex part of a nut part 42 of the box-shaped hollow part, the eccentric bending block 13 includes an arc surface 131, a plane 132 and a bottom surface 133, an irregular notch 121 matched with the arc surface 131 is arranged at the bottom of the bending block guide plate 12, the space of the irregular notch 121 is larger than the volume of the eccentric bending block 13, the shape of the bottom surface 133 is matched with the shape of a wing plate 411 of the box-shaped hollow part, symmetrical arc notches 135 are respectively arranged on the front surface and the rear surface of the eccentric bending block 13, the bending block fixing needle 14 is movably connected with the eccentric bending block 13 through the arc notches 135, and the driving mechanism 3 and the upper module driving part are respectively connected with a motor.
The driving mechanism 3 comprises a flat plate 31, the flat plate 31 is provided with a moving block 32 and a driving rod 33, one end of the moving block 32 is provided with a core rod 321, the other end of the moving block 32 is fixedly connected with the driving rod 33, and the driving rod 33 is connected with a cylinder or an oil cylinder. The lower template 2 comprises a stripping block 21, a positioning block 22, two lower top blocks 23 which are bilaterally symmetrical, two limiting blocks 24 and a spring 25, the stripping block 21 is provided with a square notch 211, the cross section of the square notch 211 is larger than or equal to the maximum cross section of the lower top block 23, the positioning block 22 is provided with two positioning pins 221 which are bilaterally symmetrical and two notches which can be used for the core rod 321 to pass through, the positioning block 22 is connected with the flat plate 31, the top of the lower top block 23 is a wedge which is sharp at the upper part and wide at the lower part, the top of the wedge is an arc, a wedge extrusion surface is provided with threads, and the spring 25 is respectively arranged below the stripping block 21 and the flat plate 31. The front end of the bending block fixing needle 14 is provided with a limiting nut, and the length of the bending block fixing needle 14 is larger than that of the eccentric bending block 13.
The specific process steps of the embodiment of the utility model are as follows:
the method comprises the following steps: positioning the box-shaped hollow sheet metal part 41 on the positioning block 22 provided with the positioning pin 221;
step two: the driving rod 33 arranged on the driving mechanism 3 drives the moving block 32 to move forward, so that the core rod 321 is inserted into the inner cavity of the box-shaped hollow sheet metal part 41;
step three: the nut member 42 of the box-shaped hollow member is sandwiched and fixed between the mandrels 321;
step four: the upper die body driving part drives the upper die body 1 to move downwards relative to the lower die body 2, the bending block guide plate 12 and the bending block fixing needle 14 extrude the eccentric bending block 13 to rotate so as to flatten the wing plate 411, and the side surface of the lower ejector block 23 extrudes the narrow edge 412 of the sheet metal part to form flattened threads, so that a box-shaped hollow part is manufactured;
step five: the upper die body driving part drives the upper die block 1 to move upwards, the eccentric bending block 13 resets under the action of gravity, and the lower die block 2 resets under the action of the spring 25;
step six: the drive rod 33 drives the mobile block 32 back to the initial position, the box-shaped hollow element is removed and the process is finished.
For the box-shaped hollow part bending process, the original forming process is pre-bending and flattening, two devices and two sets of die sleeves are needed, the efficiency is low, the cost is high, the structural design of a stamping die is improved, the new forming process is one-step bending forming, the production efficiency of products is improved, the production period is shortened, and the production cost is greatly reduced. The structural design of the bending die mainly adopts the bending block, the fixing pin and the guide plate to realize the normal force all the time of the bent edge, so that the bending is in place once, and the appearance and the size requirements of a product are ensured.
Claims (10)
1. The utility model provides a make hollow spare narrow limit of box-shaped one shot forming's mould of bending, including last die body (1), lower die body (2) and actuating mechanism (3), it is connected with last die block drive division to go up die body (1), it reciprocates its characterized in that to go up die body (1) can lower die body (2) relatively under the drive of last die body drive division: the upper die body (1) comprises a positioning plate (11), a bending block guide plate (12), two eccentric bending blocks (13) which are bilaterally symmetrical and two bending block fixing needles (14), the bending block guide plate (12) and the bending block fixing needles (14) are fixed on the positioning plate (11), the eccentric bending blocks (13) are hollow blocks with notches (134), the height of the notches (134) is more than or equal to that of the convex parts of a box-shaped hollow nut member (42), each eccentric bending block (13) comprises an arc surface (131), a plane (132) and a bottom surface (133), an irregular notch (121) matched with the arc surface (131) is arranged at the bottom of the bending block guide plate (12), the space of the irregular notch (121) is more than the volume of the eccentric bending block (13), and the shape of the bottom surface (133) is matched with that of a hollow box-shaped wing plate (411), the front and back surfaces of the eccentric bending block (13) are respectively provided with symmetrical arc notches (135), the bending block fixing needle (14) penetrates through the arc notches (135) to be movably connected with the eccentric bending block (13), and the driving mechanism (3) and the upper module driving part are respectively connected with the motor.
2. The mold for one-time bending and molding of the narrow edge of the box-shaped hollow part according to claim 1, wherein: the driving mechanism (3) comprises a flat plate (31), a moving block (32) and a driving rod (33) are arranged on the flat plate (31), a core rod (321) is arranged at one end of the moving block (32), and the other end of the moving block (32) is fixedly connected with the driving rod (33).
3. The mold for one-time bending and molding of the narrow edge of the box-shaped hollow part according to claim 2, wherein: the driving rod (33) is connected with the air cylinder or the oil cylinder.
4. The mold for one-time bending and molding of the narrow edge of the box-shaped hollow part according to claim 3, wherein: the lower die body (2) comprises a stripping block (21), a positioning block (22), two lower ejector blocks (23) which are symmetrical left and right, two limiting blocks (24) and a spring (25).
5. The mold for one-time bending and molding of the narrow edge of the box-shaped hollow part according to claim 4, wherein: the stripping block (21) is provided with a square notch (211), and the cross section of the square notch (211) is larger than or equal to the maximum cross section of the lower ejector block (23).
6. The mold for one-time bending and molding of the narrow side of the box-shaped hollow part according to claim 4 or 5, wherein: the positioning block (22) is provided with two positioning pins (221) which are symmetrical front and back and two notches which are symmetrical left and right and can be used for the core rod (321) to pass through, and the positioning block (22) is connected with the flat plate (31).
7. The mold for one-time bending and molding of the narrow side of the box-shaped hollow part according to claim 4 or 5, wherein: the top of the lower ejector block (23) is a wedge with a sharp upper end and a wide lower end, the top of the wedge is an arc, and a thread is arranged on a wedge-shaped extrusion surface.
8. The mold for one-time bending and molding of the narrow side of the box-shaped hollow part according to claim 4 or 5, wherein: the springs (25) are respectively arranged below the stripping block (21) and the flat plate (31).
9. The mold for one-time bending and molding of the narrow side of the box-shaped hollow part according to claim 8, wherein: the front end of the bending block fixing needle (14) is provided with a limiting convex part.
10. The mold for one-time bending and molding of the narrow side of the box-shaped hollow part according to claim 9, wherein: the length of the bending block fixing needle (14) is greater than that of the eccentric bending block (13).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121060447 | 2021-05-17 | ||
| CN202121060447X | 2021-05-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216175850U true CN216175850U (en) | 2022-04-05 |
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ID=80918130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122068255.XU Active CN216175850U (en) | 2021-05-17 | 2021-08-30 | One-time bending forming die for narrow edge of box-shaped hollow part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216175850U (en) |
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2021
- 2021-08-30 CN CN202122068255.XU patent/CN216175850U/en active Active
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