CN109985950B - Supporting device for manufacturing circular tube component - Google Patents
Supporting device for manufacturing circular tube component Download PDFInfo
- Publication number
- CN109985950B CN109985950B CN201711475085.9A CN201711475085A CN109985950B CN 109985950 B CN109985950 B CN 109985950B CN 201711475085 A CN201711475085 A CN 201711475085A CN 109985950 B CN109985950 B CN 109985950B
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- Prior art keywords
- lever
- rod
- support
- head
- pipe
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 238000004080 punching Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims description 8
- 230000033001 locomotion Effects 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 36
- 239000010959 steel Substances 0.000 abstract description 36
- 238000003825 pressing Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
- B21D22/025—Stamping using rigid devices or tools for tubular articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
Abstract
The invention relates to a supporting device for manufacturing a round pipe member, which is used for providing a round pipe supporting force when a round pipe head is punched by a punching machine, and comprises a fixed bracket (1), a lever group, a supporting rod and a driving rod (3), wherein when the device works, an upper punch head touches the top of the round pipe until the pipe head is flattened, the driving rod (3) synchronously descends at the same speed through a transmission mechanism, the driving rod (3) downwards presses the head end of a front lever (21), and the tail end of a rear lever (22) synchronously descends through the transmission of the front lever (21) and a rear lever (22), so that the descending speed of the front supporting rod (41) and the rear supporting rod (42) is 1/2 of the descending speed of the upper punch head. Compared with the prior art, the device disclosed by the invention has the advantages that when the upper punch presses down the distance of one pipe diameter, the device moves down by 1/2 of the pipe diameter distance, the plane of the pressed pipe head and the axis of the steel pipe are ensured to be on the same plane, the link of rectifying the steel pipe is omitted, and the rejection rate of products is reduced.
Description
Technical Field
The present invention relates to a supporting device, and more particularly, to a supporting device for manufacturing a round tube member.
Background
The round steel pipe rod piece is a supporting member form commonly used in the construction design of light steel structural members, a design engineer can design a supporting specification according to spot products, the supply amount is sufficient, the bearing performance of a unit weight member is high, and the round steel pipe rod piece is an efficient light steel structural member. Such round steel tube bars are often connected to other load bearing members of the lightweight steel structure using the following means:
a) A seal head plate is welded at the end part, four holes are directly formed in the seal head plate, and the seal head plate is connected with the holes in the web plate of the main steel structural member in a penetrating way by bolts (shown in figure 1 a); the connecting method has difficult operation during construction, and has high requirements on size control of components and space control of steel frame installation, so that the connecting method is abandoned;
b) A sealing head plate is welded at the end part, a vertical connecting plate is welded in the middle of the back surface, holes are formed in the connecting plate, and the connecting plate is connected with an overhanging node plate (stiffening rib) on the main steel structure by bolts (shown in figure 1 b); the method is a common practice at present, and the strength of the joint welding seam between the end closure plate and the pipe and the buckling strength of the end closure plate are calculated in design;
c) Slotting the two ends of the pipe along the longitudinal direction, inserting a connecting plate, welding, perforating on the connecting plate, and connecting the connecting plate with an overhanging node plate (stiffening rib) on the main steel structure by bolts; at this time, in order to ensure that the positions inside the round steel pipe, which cannot be coated with paint, are not corroded, the sealing plates (shown in figure 1 c) are repaired; the node is suitable for the condition of high load;
in combination with the above analysis, a joint (shown in fig. 2) for connecting a steel pipe head with other structural members by bolts is manufactured by directly punching (or drilling) after flattening the steel pipe head in the construction of lightweight steel structural members.
The node is directly connected with the steel structure node plate by flattening the steel pipe head, so that the welding operation of the steel pipe welding end plate and the T-shaped connecting plate is saved, the economy is high no matter the materials and the technology, and the node can replace the b-type connecting node to use after test verification.
The flattening of the steel pipe head is processed on a flywheel energy storage or hydraulic punching machine. The processing technology diagram is shown in figure 3. However, after the processing and manufacturing, the flattened head is deviated to one side, and the axis of the flattened head is not aligned with the axis of the length of the steel pipe, as shown in fig. 4, so that the member cannot be smoothly connected with connecting plates on other bearing members after being obtained on site, and the member can be used after being modified.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a supporting device for manufacturing a circular pipe member, which ensures that the plane of a pipe head and the axis of a steel pipe are on the same plane after pressing.
The aim of the invention can be achieved by the following technical scheme:
a support device for a tubular member for providing a tubular support force when used in a punch press for stamping a tubular head, said device comprising:
the fixed support comprises a front support and a rear support, and the front support is closer to a punch of the punch press than the rear support;
the lever group comprises a front lever and a rear lever, the fulcrums of the front lever and the rear lever are respectively a front bracket and a rear bracket, the rear end of the front lever is in transmission connection with the front end of the rear lever through a transmission pin shaft, and both levers are provided with sliding grooves;
the support rod comprises a front support rod and a rear support rod which are respectively and correspondingly connected with the front lever and the rear lever, the top of the support rod is used for supporting a round tube, the bottom of the front support rod is in sliding connection with a sliding groove in the middle of the front lever, and the bottom of the rear support rod is in sliding connection with a sliding groove in the rear end of the rear lever;
the top of the driving rod is in transmission connection with the upper punch of the punch press, and the bottom of the driving rod is in sliding connection with the chute of the front lever;
the connection point of the front support rod and the front lever is the midpoint of the power arm of the front lever, and the power arm/resistance arm of the front lever=2×the resistance arm/power arm of the rear lever;
when the upper punch is in operation, the driving rod is synchronously lowered at the same speed through the transmission mechanism in the process of touching the top of the round tube to flattening the tube head, the driving rod is used for pressing the head end of the front lever, and the tail end of the rear lever is synchronously lowered through the transmission of the front lever and the rear lever, so that the lowering speed of the front supporting rod and the rear supporting rod is 1/2 of the lowering speed of the upper punch.
The pivot of the front lever and the rear lever are respectively a rotating pin shaft at the top of the front bracket and the rear bracket.
The top of fixed bolster be equipped with horizontal positioning mechanism and fix the vertical sliding sleeve on horizontal positioning mechanism, place ahead bracing piece, rear bracing piece and actuating lever restrict the direction of motion through vertical sliding sleeve respectively.
The horizontal positioning mechanism is connected with the lever group through a reset mechanism.
The driving rod is provided with a stroke adjusting mechanism for adjusting the height of the top of the driving rod.
The chute is a strip-shaped groove arranged along the direction of the rod body, and two ends of the chute body are arc-shaped.
The fixed support is a portal frame.
The transmission mechanism connecting the top of the driving rod and the upper punch of the punch press is a deflector rod.
Compared with the prior art, the invention has the following advantages:
(1) Through the structural design of the device, the descending speed of the front support rod and the rear support rod is 1/2 of the descending speed of the upper punch, when the distance that the upper punch presses down one pipe diameter is ensured, the device moves down by 1/2 of the pipe diameter distance, the plane of the pipe head and the axis of the steel pipe are ensured to be on the same plane after pressing, a circular pipe rectifying link is omitted, and the rejection rate of products is reduced.
(2) The horizontal positioning mechanism and the vertical sliding sleeve ensure that the round tube is horizontal and the movement direction is vertical.
(3) The driving rod is provided with a stroke adjusting mechanism for adjusting the height of the top of the driving rod, and the stroke adjusting mechanism is adjusted corresponding to round steel pipes with different diameters, so that when a tap on the punching machine contacts the head of the round steel pipe, an additional deflector rod on the punching machine can contact the top end of the driving rod.
Drawings
FIG. 1a is a connection of the ends of a round steel tube rod with a flange plate to a load bearing structure;
FIG. 1b is a connection of the ends of a round steel tube rod with a load-bearing structure using a closure plate plus T-shaped connection plate;
FIG. 1c is a connection form of the pipe with both ends slotted in the longitudinal direction and then inserted into the connection plate;
FIG. 2 is a connection form of directly punching after flattening the steel pipe head;
FIG. 3 is a schematic diagram of the prior art steel pipe head flattening process;
FIG. 4 is a schematic view showing the deflection of the steel pipe head to one side after flattening as a result of the prior art, which cannot be well connected with the upper plate of the bearing member;
fig. 5 is a device configuration diagram of the present embodiment;
reference numerals:
1 is a bracket; 101 is a rotating pin; 102 is a horizontal fixing mechanism; 103 is a sliding sleeve; 21 is a front lever; 22 is a rear lever; 201 a transmission pin shaft; 202 is a chute; 3 is a driving rod which is connected to the 202 sliding groove of the previous group of levers through a pin shaft; 301 is a stroke adjusting mechanism; 41 is a front support bar; 401 is a pin; 42 is a rear support bar; 5 is a return spring; 6 is a deflector rod; 601 is a bolt clamp; 7 is a round tube; 8 is a punching machine.
Detailed Description
The invention will now be described in detail with reference to the drawings and specific examples. The present embodiment is implemented on the premise of the technical scheme of the present invention, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present invention is not limited to the following examples.
Examples
As shown in fig. 5, a supporting device for manufacturing a circular tube member, for providing a circular tube supporting force when a circular tube head is punched by a punching machine, the device comprising:
the fixed support 1 adopts a portal frame and comprises a front support and a rear support, wherein the front support is closer to a punch of the punch press 8 than the rear support.
The lever group comprises a front lever 21 and a rear lever 22, the fulcrums of the front lever 21 and the rear lever 22 are respectively rotary pin shafts 101 at the top parts of a front bracket and a rear bracket, and the rear end of the front lever 21 is in transmission connection with the front end of the rear lever 22 through a transmission pin shaft 201. The two levers are provided with the sliding grooves 202, the sliding grooves 202 are bar-shaped grooves arranged along the rod body direction, and the two ends of the groove body are arc-shaped, so that the supporting rod and the driving rod 3 can move up and down smoothly.
The support rod comprises a front support rod 41 and a rear support rod 42 which are respectively and correspondingly connected with the front lever 21 and the rear lever 22, a tubular or flat plate horizontal device is fixed at the top of the support rod and used for supporting the round tube 7 to be processed, the bottom of the front support rod 41 is in sliding connection with a sliding groove 202 in the middle of the front lever 21, and the bottom of the rear support rod 42 is in sliding connection with the sliding groove 202 in the rear end of the rear lever 22. The front lever 21 rotates around the pin 101, and the front support rod 41 is pulled down after the downward deformation from the driving rod 3 is reduced to 1/2, so that the round tube 7 to be processed is moved down by a distance of 1/2 of the punch downward pressing distance.
The top of the driving rod 3 is in transmission connection with a deflector rod 6 on an upper punch of the punch press 8, and the bottom of the driving rod is in sliding connection with a chute 202 of the front lever 21, wherein a connection point of the front supporting rod 41 and the front lever 21 is a midpoint of a power arm of the front lever 21, and the power arm/resistance arm=2 of the front lever 21 and the resistance arm/power arm of the rear lever 21.
The top of the fixed support 1 is provided with a horizontal positioning mechanism 102 and a vertical sliding sleeve 103 fixed on the horizontal positioning mechanism 102, the horizontal positioning mechanism 102 ensures the levelness of the whole device, and the front support rod 41, the rear support rod 42 and the driving rod 3 limit the movement direction to be the vertical direction through the vertical sliding sleeve 103 respectively.
The horizontal positioning mechanism 102 is connected with the lever group through a return spring 5, and the stroke of the return spring 5 is selected to adapt to the size of the round steel pipe to be processed, and the rigidity is enough to support the weight of the round steel pipe to be processed.
The driving rod 3 is provided with a stroke adjusting mechanism 301 for adjusting the height of the top of the driving rod 3, so that when the punch head of the punching machine contacts the head of the round steel pipe, an additional deflector rod 6 on the punching machine can contact the top end of the driving rod 3.
The deflector rod 6 is fixed to the upper punch of the punch press by a bolt jig 601.
When the device works, the upper punch bumps onto the top of a round pipe until the pipe head is flattened, the driving rod 3 descends synchronously at the same speed through the transmission mechanism, the driving rod 3 presses down the head end of the front lever 21, the tail end of the rear lever 22 descends synchronously through the transmission of the front lever 21 and the rear lever 22, and accordingly the descending speed of the front supporting rod 41 and the rear supporting rod 42 is 1/2 of the descending speed of the upper punch, when the distance that the upper punch presses down one pipe diameter is ensured, the device moves down by 1/2 of the pipe diameter distance, and the plane of the pipe head after pressing and the axial lead of the steel pipe are ensured to be on the same plane.
The purpose of this embodiment is to ensure that the round steel tube to be machined can move downwards synchronously while the head is being punched, and the distance of movement is 1/2 of the distance of the punch pressing down, the relevant dimensions of the lever set should meet (or approximately meet) the following proportional relationship: a: b=d: c, the parts of the driving rod 3 related to the stroke adjusting mechanism 301 do not block the natural downward movement of the round steel tube member to be processed in the stamping process.
Claims (6)
1. A support arrangement for be used for pipe component preparation, provide pipe holding power when being used for punch press punching press round tube head, its characterized in that, the device include:
the fixing support (1) comprises a front support and a rear support, and the front support is closer to a punch of the punch press (8) than the rear support;
the lever group comprises a front lever (21) and a rear lever (22), the fulcrums of the front lever (21) and the rear lever (22) are respectively a front bracket and a rear bracket, the rear end of the front lever (21) is in transmission connection with the front end of the rear lever (22) through a transmission pin shaft (201), and sliding grooves (202) are formed in the two levers;
the support rod comprises a front support rod (41) and a rear support rod (42) which are respectively and correspondingly connected with the front lever (21) and the rear lever (22), the top of the support rod is used for supporting a round tube, the bottom of the front support rod (41) is in sliding connection with a sliding groove (202) in the middle of the front lever (21), and the bottom of the rear support rod (42) is in sliding connection with the sliding groove (202) in the rear end of the rear lever (22);
the top of the driving rod (3) is in transmission connection with the upper punch of the punch press (8), and the bottom of the driving rod is in sliding connection with the chute (202) of the front lever (21);
the connection point of the front support rod (41) and the front lever (21) is the midpoint of the power arm of the front lever (21), the power arm of the front lever (21) is=2×the resistance arm of the rear lever (22), and the resistance arm of the front lever (21) is=2×the power arm of the rear lever (22);
when the upper punch head is in operation, the driving rod (3) descends synchronously at the same speed through the transmission mechanism in the process of touching the top of the round tube to flatten the tube head, the driving rod (3) presses down the head end of the front lever (21), and the tail end of the rear lever (22) descends synchronously through the transmission of the front lever (21) and the rear lever (22), so that the descending speed of the front supporting rod (41) and the rear supporting rod (42) is 1/2 of the descending speed of the upper punch head;
the pivot points of the front lever (21) and the rear lever (22) are respectively rotary pin shafts (101) at the tops of the front bracket and the rear bracket;
the top of fixed bolster (1) be equipped with horizontal positioning mechanism (102) and fix vertical sliding sleeve (103) on horizontal positioning mechanism (102), place ahead bracing piece (41), rear bracing piece (42) and actuating lever (3) restrict the direction of motion through vertical sliding sleeve (103) respectively.
2. The supporting device for manufacturing the round pipe component according to claim 1, wherein the horizontal positioning mechanism (102) is connected with the lever group through a reset mechanism.
3. A support device for manufacturing a tubular member according to claim 1, wherein the drive rod (3) is provided with a stroke adjusting mechanism for adjusting the height of the top of the drive rod (3).
4. The supporting device for manufacturing the round tube component according to claim 1, wherein the sliding groove (202) is a bar-shaped groove arranged along the direction of the rod body, and two ends of the groove body are arc-shaped.
5. A support device for the manufacture of tubular members according to claim 1, characterized in that the fixed support (1) is a portal frame.
6. A support device for the manufacture of tubular members according to claim 1, characterized in that the transmission means connecting the top of the driving rod (3) with the upper punch of the punch press (8) is a deflector rod (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711475085.9A CN109985950B (en) | 2017-12-29 | 2017-12-29 | Supporting device for manufacturing circular tube component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711475085.9A CN109985950B (en) | 2017-12-29 | 2017-12-29 | Supporting device for manufacturing circular tube component |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109985950A CN109985950A (en) | 2019-07-09 |
| CN109985950B true CN109985950B (en) | 2024-02-23 |
Family
ID=67109223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711475085.9A Active CN109985950B (en) | 2017-12-29 | 2017-12-29 | Supporting device for manufacturing circular tube component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109985950B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2933510B1 (en) * | 1979-08-18 | 1980-10-09 | Huennebeck Gmbh | Tubular steel support |
| CN2661341Y (en) * | 2003-09-22 | 2004-12-08 | 陈威 | Lever type automatic bi-directional press of powder material |
| CN203939948U (en) * | 2014-04-15 | 2014-11-12 | 苏州大学 | Bent lever is amplified linear drives stamping press |
| CN204052557U (en) * | 2014-09-24 | 2014-12-31 | 浙江宏旺金属制品有限公司 | Steel tube punching device |
| CN105414335A (en) * | 2015-11-18 | 2016-03-23 | 凌云工业股份有限公司 | Pressing mold for round tube class car bumper |
| CN106984699A (en) * | 2017-05-31 | 2017-07-28 | 河北工业大学 | Automatic hole punching on circular duct machine available for production line |
-
2017
- 2017-12-29 CN CN201711475085.9A patent/CN109985950B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2933510B1 (en) * | 1979-08-18 | 1980-10-09 | Huennebeck Gmbh | Tubular steel support |
| CN2661341Y (en) * | 2003-09-22 | 2004-12-08 | 陈威 | Lever type automatic bi-directional press of powder material |
| CN203939948U (en) * | 2014-04-15 | 2014-11-12 | 苏州大学 | Bent lever is amplified linear drives stamping press |
| CN204052557U (en) * | 2014-09-24 | 2014-12-31 | 浙江宏旺金属制品有限公司 | Steel tube punching device |
| CN105414335A (en) * | 2015-11-18 | 2016-03-23 | 凌云工业股份有限公司 | Pressing mold for round tube class car bumper |
| CN106984699A (en) * | 2017-05-31 | 2017-07-28 | 河北工业大学 | Automatic hole punching on circular duct machine available for production line |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109985950A (en) | 2019-07-09 |
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