Hump forming die
By designing a hump forming mold and utilizing the coordinated movement of the outer mold, inner mold, and expansion cone, the problems of excessive materials and labor in flange connection are solved, achieving efficient forming and low-cost connection of hump pipes.
Patent Information
- Application Number
- CN202423254507.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-28
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2034-12-28
AI Technical Summary
The flange connection in the existing automotive exhaust system has problems such as excessive materials, high price, and laborious connection.
Using a hump forming mold, and controlled by three hydraulic cylinders and a rotary motor, the pipe fitting is expanded and rotated multiple times by the coordinated movement of the outer mold, inner mold and expansion cone to form a hump pipe shape, so that it can be connected by clamps.
By improving the shape of the pipe fittings, material costs were reduced and the connection process was simplified.
Smart Images
Figure CN223801337U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a hump forming die, the die can process hump pipe fittings, and is applied to the field of automobile exhaust system manufacturing. BACKGROUND
[0002] At present, the original pipe fittings are connected through flanges, that is, two flanges are needed, and the pipe fittings are connected in the form of adding gaskets in the middle, the flange connection has the defects of using more materials, high price and laborious connection. SUMMARY
[0003] The utility model discloses a hump forming die, is manufactured a can produce Bi-cone hump pipe forming die, places pipe fitting in the die, and the equipment is controlled through 3 oil cylinders, a rotary motor control system, carries out control to the die through electrical program, and the pipe fitting satisfies the forming through multiple mouth expansion, rotation and roundness correction, which is through improving the shape of the pipe fitting, applying the hump pipe to be connected through the clamp, and the corresponding die is designed for the pipe fitting, and the cost is saved.
[0004] The utility model discloses a hump forming die, including outer mould, inner mould and expansion cone, its characterized in that: the inner mould is embedded in the outer mould, and the gap between the inner mould and the outer mould is 1.2-1.5mm, the expansion cone is sleeved in the inner mould, and the outer mould is closed as a closed circle; The outer mould is eight independent parts, and each independent part is divided into eight parts according to the circumference 360 degrees, that is, each petal is the circumference 45 degrees; Two threaded holes are formed on the outer side of each petal of the outer mould and connected with the equipment; The inner mould is a six-petal structure, and is divided into six parts according to the circumference 360 degrees, and three lines are cut on the solid of the inner mould, and the width is 4mm; The bottom keyway of the inner mould moves horizontally on the floating plate pin of the equipment, the floating plate pin on the motor equipment is slidably connected with the bottom keyway of the inner mould, the U-shaped groove at the bottom of the expansion cone is fixed with the U-shaped clamping block on the equipment, the bottom of the expansion cone has a lubricating channel, and the keyways on the six petals of the inner mould interact with the floating plate pin after the inner mould is pushed by the expansion cone, so as to play the connection and guiding roles.
[0005] The inner mould and the outer mould move horizontally under the driving of the expansion cone, and the expansion cone moves vertically.
[0006] The utility model discloses a hump forming die, is manufactured a can produce Bi-cone hump pipe forming die, places pipe fitting in the die, and the equipment is controlled through 3 oil cylinders, a rotary motor control system, carries out control to the die through electrical program, and the pipe fitting satisfies the forming through multiple mouth expansion, rotation and roundness correction, which is through improving the shape of the pipe fitting, applying the hump pipe to be connected through the clamp, and the corresponding die is designed for the pipe fitting, and the cost is saved. DRAWINGS
[0007] Figure 1 It is the structure schematic diagram of the utility model.
[0008] Figure 2 It is the outer mould plan view of the utility model.
[0009] Figure 3 It is the A-A sectional view of the outer mold of the utility model.
[0010] Figure 4 It is the plan view of the inner mold of the utility model.
[0011] Figure 5 It is the A-A sectional view of the inner mold of the utility model.
[0012] Figure 6 It is the structure schematic view of the expansion cone of the utility model.
[0013] Figure 7 It is the A-A sectional view of the expansion cone of the utility model.
[0014] Figure 8 It is the schematic view of the equipment floating plate of the utility model. DETAILED DESCRIPTION
[0015] The utility model will be further described in connection with the drawings: as Figures 1-8 The utility model discloses a hump forming die, including outer mold 1, inner mold 2 and expansion cone 3, it is characterized in that: outer mold 1 inlaying inner mold 2, the clearance between inner mold 2 and outer mold 1 is 1.2-1.5mm, expansion cone 3 is sleeved in inner mold 2, and outer mold 1 is closed as closed circle;Outer mold 1 is eight independent parts, and each independent part is divided into 8 parts according to the circumference 360 degrees, i.e. each petal is the circumference 45 degrees;Two threaded holes are formed on the outer side of each petal of outer mold 1 and are connected with equipment;Inner mold 2 is 6 petal structure, and is divided into 6 parts according to the circumference 360 degrees, and the solid of inner mold 2 is linear cutting 3 lines, and the width is 4mm;The bottom keyway 4 of inner mold 2 is horizontally moved on the floating plate pin of equipment, and the floating plate 6 pin on the motor equipment is slidably connected with the bottom keyway of inner mold 3, the U-shaped groove 5 of the bottom end portion of expansion cone is fixed on the U-shaped clamping block of equipment, the bottom end of expansion cone 3 has a lubricating passage 7, after inner mold 2 is pushed by expansion cone 3, the keyway 4 on the 6 petals of inner mold 2 and the floating plate 6 pin interact, play the connecting and guiding effect.
[0016] The inner mold 2 and outer mold 1 are horizontally moved under the drive of expansion cone 3, and expansion cone 3 is vertically moved.
[0017] Motion process: the motor equipment pulls expansion cone 3, props up inner mold 2 and moves outward, and extrudes the pipe fitting according to the shape of the die and deforms, and outer mold 1 plays the role of supporting deformation on the outside of the pipe fitting.The whole process is circulated, and the pipe fitting is processed into hump pipe, realizes the processing process.
[0018] When working, the straight pipe is placed in the inner mold 2 and the outer mold 1, the expansion cone 3 moves upward, the inner mold 2 moves horizontally left and right, after the inner mold 2 moves, the pipe is expanded; the outer mold 1 is closed and fixed in size under the action of the oil cylinder of the equipment, the key size of the inner and outer mold extrusion is guaranteed, the inner mold 2 rotates under the action of the rotating motor of the equipment, the rotation angle is 90 degrees, the motor rotates 2 times in total, the pipe is always rotated in one direction, in order to ensure that the pipe and the inner mold 2 are in uniform contact, the straight pipe is formed into a hump pipe under the interaction of the inner and outer mold models. The inner mold plays a supporting role, the outer mold plays a role in fixing the external contour, and the pipe is made into a hump pipe shape from a straight pipe.
[0019] The outer mold 1 is designed by extracting the outer contour of the pipe, as shown in Figures 2-3 When the outer mold 1 is closed, it is a closed circle in plan view, the outer mold 1 structure is divided into eight independent parts, each independent part is divided into eight parts according to 360 degrees of circumference, each part is 45 degrees of circumference, each part is connected with the equipment through two screw holes on the outer side of each part, the outer contour of the outer mold is standardized according to the equipment and the mold interface, and the inner contour of the outer mold 1 is designed by cutting the solid according to the product and the product outer contour.
Claims
1. A hump forming die comprising an outer die, an inner die and a swell cone, characterised in that: The outer mold is embedded with the inner mold, the gap between the inner mold and the outer mold is 1.2-1.5mm, the taper sleeve is installed in the inner mold, and the outer mold is closed to a closed circle; the outer mold is eight independent parts, each independent part is divided into eight parts according to 360 degrees of the circumference, that is, each petal is 45 degrees of the circumference; two threaded holes are opened on the outer side of each petal of the outer mold to be connected with the equipment; the inner mold is a 6-petal structure, is divided into six parts according to 360 degrees of the circumference, and is linearly cut 3 lines with a width of 4mm; the bottom key groove of the inner mold moves horizontally on the floating plate pin on the equipment, the floating plate pin on the motor equipment is in sliding connection with the bottom key groove of the inner mold, the U-shaped groove at the bottom end of the taper sleeve is fixed with the U-shaped clamping block on the equipment, and the bottom end of the taper sleeve has a lubricating channel.
2. A hump forming die according to claim 1, wherein The inner mold and the outer mold move horizontally under the driving of the taper sleeve, and the taper sleeve moves vertically.