CN102407265B - Vertical tube expander with counterweight mechanism - Google Patents
Vertical tube expander with counterweight mechanism Download PDFInfo
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- CN102407265B CN102407265B CN 201110395118 CN201110395118A CN102407265B CN 102407265 B CN102407265 B CN 102407265B CN 201110395118 CN201110395118 CN 201110395118 CN 201110395118 A CN201110395118 A CN 201110395118A CN 102407265 B CN102407265 B CN 102407265B
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- frame
- screw rod
- force transmission
- seat
- rack
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Abstract
The invention relates to a vertical tube expander with a counterweight mechanism, which comprises a base, a rack, a power seat, an opening expanding seat and a mould release seat; an expanding rod is mounted on the power seat; the expanding rod passes through a plurality of supporting plates and is fixedly supported by the supporting plates; the rack is a door-shaped rack; two front side surfaces of the door-shaped rack are installed with mutually parallel linear guide rails respectively; two inner side surfaces of the rack are installed with mutually parallel inside guide rails respectively; a force transmission frame is placed in the rack and is limited on the inside guide rails of the rack; the force transmission frame is driven by a force transmission frame power mechanism to move up and down along the inside guide rails of the rack; the power seat is fixed to the side edge of the upper part of the force transmission frame; two ends of the power seat are installed with a screw rod chain wheel with a guide key in an inner hole respectively; two parallel upper screw rods are sleeved in two screw rod chain wheel holes respectively; an upper screw rod drive device is mounted on the power seat for driving the screw rod chain wheel to rotate; the lower ends of the upper screw rods are connected with the opening expanding seat; a lower screw rod and a lower screw rod drive device are mounted on the base under the mould release seat; the upper end of the lower screw rod is sleeved with a lower screw rod nut; the lower screw rod nut is fixed to the mould release seat; and the rack is provided with a counterweight device connected with a power frame.
Description
Technical field
The present invention relates to a kind of vertical pipe expander.
Background technology
Electric tube expander is to place the numerous heat exchanger pipe fitting diameters in the fin to swell, to make it to combine closely with fin, avoids producing and becomes flexible, and increases the heat conductivility of heat exchanger, in addition pipe fitting end is carried out enlarging and flange, is beneficial to carry out next procedure.
Existing common vertical pipe expander production efficiency is low, automaticity is not high, and every variation primary production model all needs to readjust the striker plate of locating clip clamping of workpieces, unusual trouble, and workload is big, and precision can't guarantee.Simultaneously the heat exchanger pipe fitting can produce certain contraction in expanded joint, and the contraction of every heat exchanger pipe fitting also there are differences, and causes the heat exchanger tube end uneven, and waste of raw materials is very big, and the upper and lower material of workpiece takies the machine time kept in reserve, and operating efficiency is low.
The higher vertical pipe expander of existing automaticity comprises frame, power seat, enlarging seat and moves back die holder, expander roll is installed on the power seat, expander roll passes a plurality of gripper shoes and by the gripper shoe fixed support, the power seat is generally directly driven by rack-mounted oil cylinder, the stationarity of whole actuating unit is relatively poor, a little less than the anti-bias load ability, workpiece is yielding in the expand tube process.
Existing vertical pipe expander will improve the power that expand tube speed can only increase the driving mechanism that drives the power seat, and the acceleration that the power seat produces when moving downward might make the power seat downslide phenomenon occur, has potential safety hazard.
Summary of the invention
Technical problem to be solved by this invention is to overcome the above-mentioned defective of prior art and a kind of vertical pipe expander with balance weight mechanism is provided, and makes its anti-bias load ability strong, guarantees that workpiece is indeformable and safe.
The present invention solves the problems of the technologies described above the technical scheme that adopts:
The vertical pipe expander of band balance weight mechanism, comprise base, be installed in the frame on the base, the power seat that expander roll is installed, enlarging seat and move back die holder, expander roll is installed on the power seat, expander roll passes a plurality of gripper shoes and by the gripper shoe fixed support, it is characterized in that: described frame is portal frame, the line slideway that is parallel to each other is installed on two leading flanks of portal frame separately, the interior side rails that is parallel to each other is installed on two medial surfaces of frame separately; Force transmission rack places in the frame and is spacing in frame on the side rails, and driven by the force transmission rack actuating unit that side rails moves up and down in the frame, force transmission rack top stationary power seat, the screw mandrel sprocket wheel that endoporus has feather key respectively is equipped with at power seat two ends, two parallel upper screw rods are set on respectively in two screw mandrel sprocket holes, the upper screw rod drive unit is installed on the power seat, drive the rotation of screw mandrel sprocket wheel, the upper screw rod nut that is set on the upper screw rod bottom is also spacing on the line slideway of frame, and the upper screw rod lower end connects the enlarging seat; Following screw mandrel and following screw rod driving device thereof are installed on the base that moves back the die holder below, and following screw mandrel upper end is with down the feed screw nut, and following feed screw nut is fixed on and moves back on the die holder; The counter weight device that is connected with power rack is set on the described frame.
Above-mentioned upper screw rod drive unit by drive sprocket respectively be set on upper screw rod on two screw mandrel sprocket wheels be connected by chain, such driving is more steady.
Above-mentioned force transmission rack actuating unit comprises ball screw, and ball screw is installed on the base of frame below, and the force transmission rack lower end is connected with the force transmission rack nut, and the force transmission rack nut sleeve is in the screw mandrel upper end of ball screw.
Above-mentioned force transmission rack two sides by the roll wheel assembly frame installed in frame on the side rails.
Above-mentioned upper screw rod lower end connects the enlarging seat with bulb.
The above-mentioned die holder top mounting spring of moving back supports the enlarging seat.
Above-mentioned down screw mandrel is erected at and moves back the die holder both sides, installs and moves back the mould cylinder in the described die holder two sides of moving back, and the described piston rod that moves back the mould cylinder is connected with nut.
A cat ladder also is set in the frame back, and described cat ladder below is fixed on the base, and upper fixed is on frame.
Compared with prior art, the invention has the advantages that:
1. frame is door shape, what electric tube expander power seat was installed on the force transmission rack and the roll wheel assembly by force transmission rack two sides can pump in frame, because roll wheel assembly can be arranged on position far away relatively, so the expander roll that the power seat drives, enlarging seat anti-bias load ability are strong, help to improve the anti-bias load ability of electric tube expander, guarantee that workpiece is indeformable.
2. power seat, enlarging seat and move back die holder and can move back and forth along two line slideways on the frame operate steadily, and transmit the power application of force equilibrium that the heat exchanger pipe fitting expands cup-shaped recess and pipe end taper flange by power seat, upper screw rod.
3. the chain wheel driving mechanism that drives of upper screw rod drive unit not only can transferring power, and also automatic tension chain need not increase other part and carry out the chain tensioner simultaneously.
4. employing is more convenient than two guide pillars of existing employing in two parallel linear guides of frame installation, and precision is guaranteed.
5. be conducive to improve the expand tube speed of electric tube expander by counter weight device is installed, and need not to improve expand tube speed by increasing power of motor, saved cost, operation is also convenient, does not also influence the outward appearance of electric tube expander, and does not have potential safety hazard.
6. by a cat ladder is installed, operating maintenance is convenient on the one hand, also can strengthen the counter-bending ability of equipment simultaneously.
Description of drawings
Fig. 1 is the vertical pipe expander stereogram of band balance weight mechanism of the present invention.
Fig. 2 for the vertical pipe expander of band balance weight mechanism of the present invention not with the stereogram of rotary table.
Fig. 3 for the vertical pipe expander of band balance weight mechanism of the present invention not with the stereogram of rotary table.
Fig. 4 is the structural representation of force transmission rack of the present invention.
Fig. 5 is the cooperate figure of power seat sprocket wheel of the present invention with upper screw rod.
Fig. 6 is the partial structurtes schematic diagram of the vertical pipe expander counter weight device of band balance weight mechanism of the present invention.
The specific embodiment
Describe in further detail below in conjunction with the present invention of accompanying drawing embodiment.
As shown in Figure 1, 2, 3, the vertical pipe expander of band balance weight mechanism comprises base 1, and portal frame 10 is installed on it, the line slideway 16 that is parallel to each other is installed on 10 2 leading flanks of frame separately, the interior side rails 101 that is parallel to each other is installed on 10 2 medial surfaces of frame separately.
Above-mentioned rollers assembly 81 comprises a pair of parallel pulley 811 that keeps at a certain distance away, and force transmission rack 8 is more steady in interior side rails 101 movements like this on interior side rails 101 to 811 on pulley by this, and frictional force is littler, sees Fig. 4.
For guiding force transmission rack 8 better, also between the parallel pulley of roll wheel assembly 81 is to 811, vertical sliding wheel 812 is set.
The screw mandrel sprocket wheel 91 that endoporus has feather key 92 respectively is equipped with at power seat 9 two ends, two parallel upper screw rods 6 are set on respectively in two screw mandrel sprocket wheel 91 holes, feather key 92 is embedded in the guiding groove 61 of upper screw rod 6, the drive unit 601 of upper screw rod 6 is installed on the power seat 9, drive unit 601 comprises two drive sprockets 94, respectively be set on upper screw rod 6 on two screw mandrel sprocket wheels 91 be connected by chain 93, upper screw rod 6 lower ends connect enlarging seat 5 with bulb, the guiding groove 603 of upper screw rod nut 602 by the one side that is set on the upper screw rod 6 is limited on the line slideway 16 of frame, sees Fig. 5.
Following screw mandrel 2 and drive unit 201 thereof are installed on the base 1 that moves back die holder 4 belows, and feed screw nut 17 is down installed in following screw mandrel 2 upper ends, moves back mould cylinder 18 and is fixed on the side that moves back die holder, move back the piston rod of mould cylinder 18 and fix with following feed screw nut 17.
For making down feed screw nut's 17 stress equalizations and better movement, at the opposite side that moves back mould cylinder 18 piston rods relatively that descends feed screw nut 17 guide rod 41 is set, guide rod 41 passes down feed screw nut 17 sidepiece and is fixed on and moves back on the die holder 4, sees Fig. 3.
Above-mentioned move back die holder 4 tops also mounting spring support show among the enlarging seat 5(figure draw).
As shown in Figure 6, also comprise one group of counter weight device 11 that links to each other with power rack 8 that is installed in the frame 1.
Described counter weight device 11 comprises balancing weight 1101, steel wire rope 1102, pulley 1103, pulley spindle 1104, described pulley spindle 1104 is fixed in the installing hole of frame 10, pulley 1103 is installed on the pulley spindle 1104 by rolling element, steel wire rope 1102 is housed on the pulley 1103, described steel wire rope 1,102 one ends are connected with balancing weight 1101, and the other end is connected with force transmission rack 8.Gravity by balancing weight 1101 comes balance force transmission rack 8, power seat 9 and gravity and the acceleration of the moving component that connects below, and force transmission rack 8, power seat 9 and the motion of other moving component are steady and safe like this, have also improved expand tube speed simultaneously.
Above-mentioned counter weight device 11 is preferably left and right and respectively arranges one, like this can better balance and better counterweight.
As Fig. 1,2,3, a cat ladder 20 also is set in the frame back, described cat ladder 20 belows are fixed on the base 1, and upper fixed makes operating maintenance become easily on frame 10 on the one hand, has also strengthened the counter-bending ability of equipment simultaneously.
When the vertical pipe expander of band balance weight mechanism of the present invention is worked, drive unit 601 by upper screw rod 6 drives upper screw rod 6 rotations earlier, thereby change its upper screw rod nut 602 and with the position of the fixing enlarging seat 5 of upper screw rod nut 602, the determining positions of upper screw rod nut 602 carry out the original position that pipe fitting expands cup-shaped recess and pipe end taper flange; By the following drive unit 201 of screw mandrel 2, drive screw mandrel 2 rotations down, thereby change its position of feed screw nut 17 down, and then change the position of fixing with following feed screw nut 17 of moving back die holder 4 and the position of moving back die holder 4 relative workpiece 15; By the position of ball screw 3 adjustment power seats 9, the i.e. initial position of expander roll 14 relative workpiece 15.
After adjusting finishes, install workpiece at stacked rotary table, the clamping device that clamps pipe fitting U-shaped end and the other end clamps the heat exchanger pipe fitting, moves back mould cylinder 18 and drives and move back die holder 4 and compress heat exchanger fin to next segment distance, just can start working.
Claims (10)
1. be with the vertical pipe expander of balance weight mechanism, comprise base, be installed in the frame on the base, the power seat that expander roll is installed, enlarging seat and move back die holder, expander roll is installed on the power seat, expander roll passes a plurality of gripper shoes and by the gripper shoe fixed support, it is characterized in that: described frame is portal frame, the line slideway that is parallel to each other is installed on two leading flanks of portal frame separately, the interior side rails that is parallel to each other is installed on two medial surfaces of frame separately; Force transmission rack places in the frame and is spacing in frame on the side rails, and driven by the force transmission rack actuating unit that side rails moves up and down in the frame, force transmission rack top stationary power seat, the screw mandrel sprocket wheel that endoporus has feather key respectively is equipped with at power seat two ends, two parallel upper screw rods are set on respectively in two screw mandrel sprocket holes, the upper screw rod drive unit is installed on the power seat, drive the rotation of screw mandrel sprocket wheel, the upper screw rod nut that is set on the upper screw rod bottom is also spacing on the line slideway of frame, and the upper screw rod lower end connects the enlarging seat; Following screw mandrel and following screw rod driving device thereof are installed on the base that moves back the die holder below, and following screw mandrel upper end is with down the feed screw nut, and following feed screw nut is fixed on and moves back on the die holder; The counter weight device that is connected with power rack is set on the described frame.
2. the vertical pipe expander of band balance weight mechanism as claimed in claim 1 is characterized in that: described upper screw rod drive unit by drive sprocket respectively be set on upper screw rod on two screw mandrel sprocket wheels be connected by chain.
3. the vertical pipe expander of band balance weight mechanism as claimed in claim 1 or 2, it is characterized in that: described force transmission rack actuating unit is ball screw, ball screw is installed on the base of frame below, the force transmission rack lower end is connected with the force transmission rack nut, and the force transmission rack nut sleeve is in the screw mandrel upper end of ball screw.
4. the vertical pipe expander of band balance weight mechanism as claimed in claim 1 or 2 is characterized in that: described force transmission rack two sides by the roll wheel assembly frame installed in frame on the side rails.
5. the vertical pipe expander of band balance weight mechanism as claimed in claim 4, it is characterized in that: described roll wheel assembly comprises a pair of parallel pulley that keeps at a certain distance away, by this to pulley yoke on interior side rails.
6. the vertical pipe expander of band balance weight mechanism as claimed in claim 5 is characterized in that: the parallel pulley of described roll wheel assembly between vertical sliding wheel is set.
7. the vertical pipe expander of band balance weight mechanism as claimed in claim 1 or 2 is characterized in that: described screw mandrel down is erected at and moves back the die holder both sides, installs and moves back the mould cylinder in the described die holder two sides of moving back, and the described piston rod that moves back the mould cylinder is connected with nut.
8. the vertical pipe expander of band balance weight mechanism as claimed in claim 4 is characterized in that: described feed screw nut's the opposite side that moves back the mould cylinder piston rod relatively down arranges guide rod, and guide rod passes down feed screw nut's sidepiece and is fixed on and moves back on the die holder.
9. the vertical pipe expander of band balance weight mechanism as claimed in claim 1 or 2, it is characterized in that: described counter weight device comprises balancing weight, steel wire rope, pulley, pulley spindle, described pulley spindle is fixed in the installing hole of frame, pulley is installed on the pulley spindle by rolling element, steel wire rope is housed on the pulley, described steel wire rope one end is connected with balancing weight, and the other end is connected with force transmission rack.
10. the vertical pipe expander of band balance weight mechanism as claimed in claim 1 or 2 is characterized in that: a cat ladder also is set in the frame back, and described cat ladder below is fixed on the base, and upper fixed is on frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110395118 CN102407265B (en) | 2011-12-02 | 2011-12-02 | Vertical tube expander with counterweight mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110395118 CN102407265B (en) | 2011-12-02 | 2011-12-02 | Vertical tube expander with counterweight mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102407265A CN102407265A (en) | 2012-04-11 |
| CN102407265B true CN102407265B (en) | 2013-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110395118 Active CN102407265B (en) | 2011-12-02 | 2011-12-02 | Vertical tube expander with counterweight mechanism |
Country Status (1)
| Country | Link |
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| CN (1) | CN102407265B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108213234B (en) * | 2017-11-30 | 2024-02-27 | 珠海格力智能装备有限公司 | Frame mechanism and tube expander with same |
| CN108031755A (en) * | 2017-12-12 | 2018-05-15 | 宁波精达成形装备股份有限公司 | Multistation electric tube expander rotating platform |
| CN108326164A (en) * | 2017-12-21 | 2018-07-27 | 宁波精达成形装备股份有限公司 | A kind of expanding rod ladder adjusting apparatus |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3937054A (en) * | 1974-09-10 | 1976-02-10 | Armco Steel Corporation | Heavy duty pipe spreader |
| US5353496A (en) * | 1992-06-12 | 1994-10-11 | Burr Oak Tool & Gauge Company | Mechanical tube expander with four axis control |
| US6176006B1 (en) * | 1999-09-21 | 2001-01-23 | Burr Oak Tool And Gauge Company, Inc. | Rod lock and unlock mechanism for a mechanical tube expander |
| CN202516950U (en) * | 2011-12-02 | 2012-11-07 | 宁波精达成形装备股份有限公司 | Vertical tube expander with weight balancing mechanism |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2696659B2 (en) * | 1993-05-21 | 1998-01-14 | 京進工業株式会社 | Heat exchanger transport device |
| JP2003220431A (en) * | 2002-01-25 | 2003-08-05 | Kyoshin Kogyo Kk | Pipe expanding device |
| JP4609750B2 (en) * | 2002-05-22 | 2011-01-12 | 京進工業株式会社 | Standard stand for tube expansion equipment |
-
2011
- 2011-12-02 CN CN 201110395118 patent/CN102407265B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3937054A (en) * | 1974-09-10 | 1976-02-10 | Armco Steel Corporation | Heavy duty pipe spreader |
| US5353496A (en) * | 1992-06-12 | 1994-10-11 | Burr Oak Tool & Gauge Company | Mechanical tube expander with four axis control |
| US6176006B1 (en) * | 1999-09-21 | 2001-01-23 | Burr Oak Tool And Gauge Company, Inc. | Rod lock and unlock mechanism for a mechanical tube expander |
| CN202516950U (en) * | 2011-12-02 | 2012-11-07 | 宁波精达成形装备股份有限公司 | Vertical tube expander with weight balancing mechanism |
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| Publication number | Publication date |
|---|---|
| CN102407265A (en) | 2012-04-11 |
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