阅读说明：本技术 一种长输低能耗热网专用隔热管托下钢卡箍成形装置及其方法 (Device and method for forming lower steel hoop of heat-insulation pipe bracket special for long-distance low-energy-consumption heat supply network ) 是由 王国兴 佴耀 陈忠桂 温成 薛瑞方 于 2021-07-21 设计创作，主要内容包括：本发明公开了一种长输低能耗热网专用隔热管托下钢卡箍成形装置及其方法,成形装置包括安装位于基面上的步进电机运行轨,承载于步进电机运行轨上的操控平台,安装于操控平台的轴心线后面的电磁成形机和加热固态套圈,所述电机运行轨包括步进电机、传动丝杆和平行道轨,所述步进电机驱动传动丝杆带动平行道轨上的操控平台前后运动。本发明将现有技术中的人工拼焊工艺改成机械模压成形,便于自动化生产,减少了工件裁料加工步序、节省了大量的焊工工作量,排除了焊材用量。本发明巧妙地将电磁成形机与气动推压器相结合成就了隔热管托下钢卡箍一次热压成形。(The invention discloses a device and a method for forming a steel hoop under a special heat insulation pipe bracket for a long-distance low-energy-consumption heat supply network. The invention changes the manual tailor-welding process in the prior art into mechanical die forming, is convenient for automatic production, reduces the step sequence of cutting and processing the workpiece, saves a large amount of workload of welders, and eliminates the consumption of welding materials. The invention skillfully combines the electromagnetic forming machine and the pneumatic pusher to form the lower steel hoop of the heat insulation pipe bracket by one-time hot press forming.)

1. The utility model provides a steel clamp forming device under special thermal-insulated conduit saddle of long defeated low energy consumption heat supply network which characterized in that: comprises a stepping motor running rail (1) arranged on a base surface, an operation platform (2) borne on the stepping motor running rail (1), an electromagnetic forming machine (7) and a heating solid ferrule (5) which are arranged behind the axial lead of the operation platform (2),

the motor running rail (1) comprises a stepping motor (11), a transmission screw rod (12) and a parallel rail (13), the stepping motor (11) drives the transmission screw rod (12) to drive the control platform (2) on the parallel rail (13) to move back and forth,

the two sides of the upper surface of the control platform (2) positioned on the central line are respectively provided with a pneumatic fastening clamp (6), the outer side of each pneumatic fastening clamp (6) is respectively provided with a pneumatic pusher (4),

the two ends of the steel clamp blank (3) are fixed on the pneumatic fastening clamp (6) respectively, the two ends of the steel clamp blank (3) extend out of the pneumatic fastening clamp (6), heating solid ferrules (5) are sleeved outside the extending ends of the two ends of the steel clamp blank (3), the electromagnetic forming machine (7) heats the extending ends of the two ends of the steel clamp blank (3) through the heating solid ferrules (5), and the two pneumatic pushers (4) apply force in opposite directions to enable the heated steel clamp blank (3) to bend inwards.

2. The lower steel hoop forming device for the long-distance low-energy-consumption heat supply network special heat insulation pipe bracket according to claim 1, characterized in that: the electromagnetic forming machine (7) comprises two energy accumulators (71) arranged on the upper portion in the vertical electric appliance cabinet and a control panel (77) arranged on the lower portion, each energy accumulator (71) comprises a step-up transformer (76), a rectifying element (72), a resistance limiting current (73), a high-voltage switch (74) and a forming coil which are sequentially connected in series, the step-up transformer (76), the rectifying element (72) and the resistance limiting current (73) are connected with a pulse capacitor resistor (75) in parallel, the forming coils of the two energy accumulators (71) are respectively connected with heating solid ferrules (5) corresponding to the forming coils in series, and the two heating solid ferrules (5) are respectively sleeved on the extending ends of the two ends of the steel clamp blank (3).

3. The lower steel hoop forming device for the long-distance low-energy-consumption heat supply network special heat insulation pipe bracket according to claim 1, characterized in that: and an extrusion die is arranged on the other end of the column head of the pneumatic pusher (4), and the extrusion die is driven to perform reciprocating extrusion work under the pushing of air pressure.

4. The lower steel hoop forming device for the long-distance low-energy-consumption heat supply network special heat insulation pipe bracket according to claim 1, characterized in that: the shape of the pneumatic fastening clamp (6) is matched with the inner and outer arc radiuses of the steel clamp blank (3).

5. The lower steel hoop forming device for the long-distance low-energy-consumption heat supply network special heat insulation pipe bracket according to claim 1, characterized in that: the pushing force of the pneumatic pusher (4) is more than 1.5 of the bending force of the heated steel card blank (3); the pressing force of the pneumatic fastening clamp (6) is 1.5 times greater than the pushing force of the pneumatic pusher (4).

6. The lower steel hoop forming device for the long-distance low-energy-consumption heat supply network special heat insulation pipe bracket according to claim 1, characterized in that: and a heat insulation and insulation material is arranged at the joint of the heating solid ferrule (5) and the vertical electric appliance cabinet (71).

7. The lower steel hoop forming device for the long-distance low-energy-consumption heat supply network special heat insulation pipe bracket according to claim 1, characterized in that: the heating solid ferrules (5) positioned at the two ends of the steel card blank (3) are respectively connected to two step-up transformers in the vertical electrical appliance cabinet (71).

8. The lower steel hoop forming device for the long-distance low-energy-consumption heat supply network special heat insulation pipe bracket according to claim 1, characterized in that: the electromagnetic forming machine (7) heats the steel card blank (3) at a second speed through a magnetic pulse solid ring of the step-up transformer, and reduces the compressive strength of the metal strength limit at a normal temperature state through high-temperature softening, so that various machined parts in complex forms are die-pressed.

9. The lower steel hoop forming device for the long-distance low-energy-consumption heat supply network special heat insulation pipe bracket according to claim 1, characterized in that: the acting force of the electromagnetic forming machine (7) during electromagnetic forming is 300-500MPa, the thermal deformation speed of the material is 300m/S, the electromagnetic forming pulse current is 100-400KA, the discharge period is 100us, and electromagnetic auxiliary extrusion forming is adopted.

10. The lower steel hoop forming device for the long-distance low-energy-consumption heat supply network special heat insulation pipe bracket according to claim 1, characterized in that: the control platform (2) uses channel steel as a frame (21), a steel plate (22) is laid on the frame (21) and serves as a working table, sliding guide rail seats (23) are arranged on two sides of the center line of the bottom of the frame (21), the sliding guide rail seats (23) are erected on parallel guide rails (13), the bottom of the frame (21) is connected with a transmission screw rod (12) through a fixing nut, and the transmission screw rod (12) is connected with a stepping motor (11).

11. The lower steel hoop forming device for the long-distance low-energy-consumption heat supply network special heat insulation pipe bracket according to claim 1, characterized in that: the control platform (2), the pneumatic pusher (4) and the pneumatic fastening clamp (6) all work under the instruction of a control panel (77); the temperature of the heating solid ferrule (5) is controlled by a control plate (77); the rotation direction and the rotation speed of the stepping motor (11) are controlled by a control panel (77).

12. A forming method of a lower steel hoop forming device of a special heat insulation pipe bracket based on a long-distance low-energy-consumption heat supply network is characterized by comprising the following steps:

s1, clamping the steel clamping blank (3) by the pneumatic fastening clamp (6) so that two ends of the steel clamping blank (3) extend out of the pneumatic fastening clamp (6);

s2, respectively extending the extending ends of the two ends of the steel card blank (3) into a heating solid ferrule (5);

s3, starting an energy storage device (71) to heat the steel card blank (3) sleeved with the heating solid ferrule (5); the heated steel card blank (3) is withdrawn from the heating solid ferrule (5);

and S4, the two pneumatic pushers (4) apply force to each other to enable the heated steel card blank (3) to bend inwards.

Technical Field

The invention belongs to the technical field of pipeline heat insulation pipe carrier support of long-distance heat transmission networks, and particularly relates to a device and a method for forming a lower steel hoop of a special heat insulation pipe carrier for a long-distance heat transmission network with low energy consumption.

Background

As shown in fig. 8 and 9, in the prior art, an original lower hoop bolt seat mainly includes: original arc-shaped steel hoop 201, original bolt seat 202 and fastening bolt. The original arc-shaped steel hoop 201 and the original bolt seat 202 are processed in a split mode, and then the two pieces are formed in an assembling and welding mode. In order to meet the requirement that the included angle between the original arc-shaped steel hoop 201 and the original bolt seat 202 reaches the minimum value, the installation of a fastening bolt is convenient, and in order to achieve the high strength of the original arc-shaped steel hoop 201 and the original bolt seat 202 after welding, a single-side groove is processed while the original bolt seat 202 is blanked and connected with the original arc-shaped steel hoop 201, and the forming of a workpiece is that the upper surface groove is welded to be flat and the lower surface is fillet welded to be formed.

This tailor-welding process occurs when the cold metal cannot be formed. The defects of the method increase the cost of cutting, machining, welding, labor and electric power. Greatly weakens the success of upgrading and replacing products and market competition, highlights the process lagging in mass production,

the invention is especially provided for the necessary improvement of the original lower clamp bolt seat forming production process in order to meet the requirements of energy conservation and efficiency improvement and increasing engineering quantity and shorten the processing period in view of the limitation and the deficiency of the current processing process design.

The structure of the invention changes the traditional tailor-welding design idea, and mainly adopts the lofting, long hoop end heating forming and die extrusion forming process for split tailor-welding. The original arc-shaped steel hoop 201 and the original bolt seat 202 are cut into a whole, the prefabricated part becomes a U-shaped part for standby, the parts, needing to be bent, at two ends are heated, and the hot extrusion forming is carried out under the linkage of a die and a clamp, so that the laggard tailor-welding process is changed.

Disclosure of Invention

The invention provides a device and a method for forming a lower steel hoop of a heat insulation pipe bracket special for a long-distance heat supply network with low energy consumption, which aim to solve the problem of capacity after tailor-welding in the existing manufacturing and processing.

In order to achieve the purpose, the invention adopts the technical scheme that:

a lower steel hoop forming device of a special heat insulation pipe bracket for a long-distance low-energy-consumption heat supply network comprises a stepping motor running rail 1 arranged on a base surface, an operating platform 2 borne on the stepping motor running rail 1, an electromagnetic forming machine 7 arranged behind the axial lead of the operating platform 2 and a heating solid ferrule 5,

the motor running rail 1 comprises a stepping motor 11, a transmission screw rod 12 and a parallel rail 13, the stepping motor 11 drives the transmission screw rod 12 to drive the control platform 2 on the parallel rail 13 to move back and forth,

the two sides of the upper surface of the control platform 2, which are positioned on the central line, are respectively provided with a pneumatic fastening clamp 6, the outer side of each pneumatic fastening clamp 6 is respectively provided with a pneumatic pusher 4,

the two ends of the steel card blank 3 are respectively fixed on the pneumatic fastening fixture 6, the two ends of the steel card blank 3 extend out of the pneumatic fastening fixture 6, the extending ends of the two ends of the steel card blank 3 are respectively sleeved with the heating solid ferrules 5, the electromagnetic forming machine 7 heats the extending ends of the two ends of the steel card blank 3 through the heating solid ferrules 5, and the two pneumatic pushers 4 apply force oppositely to enable the heated steel card blank 3 to bend inwards.

Further, the electromagnetic forming machine 7 comprises two energy accumulators 71 arranged at the upper part in the vertical electric appliance cabinet and a control panel 77 arranged at the lower part, each energy accumulator 71 comprises a step-up transformer 76, a rectifying element 72, a resistance limiting current 73, a high-voltage switch 74 and a forming coil which are sequentially connected in series, the step-up transformer 76, the rectifying element 72 and the resistance limiting current 73 are connected in parallel with a pulse capacitor resistor 75, the forming coils of the two energy accumulators 71 are respectively connected in series with the heating solid ferrules 5 at the corresponding ends, the two heating solid ferrules 5 are respectively sleeved at the extending ends of the two ends of the steel card blank 3, and the energy accumulator 71 is a 200-40KJ energy accumulator.

Furthermore, an extrusion die is mounted on the other end of the pneumatic pusher 4, and the extrusion die is driven to perform reciprocating extrusion work under the pushing of air pressure.

Furthermore, the shape of the pneumatic fastening clamp 6 is matched with the inner arc radius and the outer arc radius of the steel card blank 3.

Further, the pushing force of the pneumatic pusher 4 is greater than 1.5 of the bending force of the heated steel card blank 3; the pressing force of the pneumatic fastening clamp 6 is 1.5 times greater than the pushing force of the pneumatic pusher 4.

Furthermore, a heat insulation and insulation material is arranged at the joint of the heating solid ferrule 5 and the vertical electric appliance cabinet 71.

Further, the heating solid ferrules 5 positioned at the two ends of the steel card blank 3 are respectively connected to two step-up transformers in the vertical electrical appliance cabinet 71.

Further, the electromagnetic forming machine 7 heats the steel card blank 3 at a second speed through a magnetic pulse solid ring of the step-up transformer, and reduces the compressive strength of the metal strength limit in a normal temperature state through high-temperature softening, so that various workpieces in complex forms are molded.

Furthermore, the acting force of the electromagnetic forming machine 7 during electromagnetic forming is 300-500MPa, the thermal deformation speed of the material is 300m/S, the electromagnetic forming pulse current is 100-400KA, the discharge period is 100us, and electromagnetic auxiliary extrusion forming is adopted.

Furthermore, the control platform 2 uses channel steel as a frame 21, a steel plate 22 is laid on the frame 21 as a working table, sliding guide rail seats 23 are arranged on two sides of a central line of the bottom of the frame 21, the sliding guide rail seats 23 are erected on the parallel guide rails 13, the bottom of the frame 21 is connected with a transmission screw rod 12 through a fixing nut, and the transmission screw rod 12 is connected with the stepping motor 11.

Further, the control platform 2, the pneumatic pusher 4 and the pneumatic fastening clamp 6 are all instructed to work by a control disc 77; the temperature of the heated solid ferrule 5 is controlled by a control panel 77; the rotation direction and the rotation speed of the stepping motor 11 are controlled by a control panel 77.

A forming method of a lower steel hoop forming device of a special heat insulation pipe bracket based on a long-distance low-energy-consumption heat supply network comprises the following steps:

s1, clamping the steel card blank 3 by the pneumatic fastening clamp 6, so that two ends of the steel card blank 3 extend out of the pneumatic fastening clamp 6;

s2, respectively extending the extending ends of the two ends of the steel card blank 3 into a heating solid ferrule 5;

s3, starting the energy storage device 71 to heat the steel card blank 3 sleeved with the heating solid ferrule 5; the heated steel card blank 3 exits from the heating solid ferrule 5;

and S4, applying force to the two pneumatic pushers 4 to bend the heated steel card blank 3 inwards.

Compared with the prior art, the invention has the following beneficial effects:

the invention changes the manual tailor-welding process in the prior art into mechanical die forming, is convenient for automatic production, reduces the step sequence of cutting and processing the workpiece, saves a large amount of workload of welders, and eliminates the consumption of welding materials.

The invention skillfully combines the electromagnetic forming machine and the pneumatic pusher to form the lower steel hoop of the heat insulation pipe bracket by one-time hot press forming.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of yet another embodiment of the present invention;

FIG. 3 is a side view of the present invention;

FIG. 4 is a schematic diagram of the wiring installation of the accumulator of the present invention;

FIG. 5 is a schematic view showing a clamping state of a blank of the steel card in the present invention;

FIG. 6 is a schematic structural view of a steel card blank of the present invention before processing;

FIG. 7 is a schematic view of the machined steel card blank of the present invention;

FIG. 8 is a schematic view of a prior art lower clamp bolt seat;

FIG. 9 is an enlarged view of detail A of FIG. 8;

wherein: 1-a stepping motor running rail, 11-a stepping motor, 12-a transmission screw rod, 13-a parallel rail, 2-a control platform, 21-a frame, 22-a steel plate, 23-a sliding guide rail seat, 3-a steel clamping blank, 4-a pneumatic pusher, 5-a heating solid ferrule, 6-a pneumatic fixing clamp, 7-an electromagnetic forming machine, 71-an energy accumulator, 72-a rectifying element, 73-a current-limiting resistor, 74-a high-voltage switch, 75-a pulse capacitor resistor, 76-a boosting transformer, 77-a control panel, 201-an original arc steel hoop and 202-an original bolt seat.

Detailed Description

The present invention will be further described with reference to the following examples.

As shown in fig. 8 and 9, in the prior art, the original lower hoop bolt seat comprises an original arc-shaped steel hoop 201, an original bolt seat 202 and a fastening bolt, and the original arc-shaped steel hoop 201 and the original bolt seat 202 are welded in blocks, which has the process defect that the workload of welders is increased, and the welding cost is increased.

As shown in fig. 1-7, a device for forming a lower steel hoop of a heat insulation pipe bracket special for a long-distance low-energy-consumption heat supply network comprises a stepping motor running rail 1 arranged on a base surface, an operation platform 2 borne on the stepping motor running rail 1, an electromagnetic forming machine 7 and a heating solid ferrule 5, wherein the electromagnetic forming machine 7 and the heating solid ferrule 5 are arranged behind the axial lead of the operation platform 2, the motor running rail 1 comprises a stepping motor 11, a transmission screw 12 and parallel rails 13, the stepping motor 11 drives the transmission screw 12 to drive the operation platform 2 on the parallel rails 13 to move back and forth, two pneumatic fastening clamps 6 are respectively arranged on two sides of the central line of the upper surface of the operation platform 2, a pneumatic pusher 4 is respectively arranged on the outer side of each pneumatic fastening clamp 6, two ends of a steel blank 3 are respectively fixed on the pneumatic fastening clamps 6, and two ends of the steel blank 3 both extend out of the pneumatic fastening clamps 6, the extending ends of the two ends of the steel card blank 3 are sleeved with heating solid ferrules 5, the electromagnetic forming machine 7 heats the extending ends of the two ends of the steel card blank 3 through the heating solid ferrules 5, and the two pneumatic pushers 4 apply force in opposite directions to enable the heated steel card blank 3 to bend inwards.

As a preferable scheme, the electromagnetic forming machine 7 includes two energy accumulators 71 installed at the upper part of the vertical electrical appliance cabinet and a control panel 77 installed at the lower part, each energy accumulator 71 includes a step-up transformer 76, a rectifying element 72, a resistance limiting current 73, a high-voltage switch 74 and a forming coil which are sequentially connected in series, the step-up transformer 76, the rectifying element 72 and the resistance limiting current 73 are connected in parallel with a pulse capacitor resistor 75, the forming coils of the two energy accumulators 71 are respectively connected in series with the heating solid ferrules 5 at the corresponding ends thereof, and the two heating solid ferrules 5 are respectively sleeved at the extending ends of the two ends of the steel card blank 3.

As a preferable scheme, an extrusion die is installed on the other end of the pneumatic pusher 4, and the extrusion die is driven to perform reciprocating extrusion work under the pushing of air pressure. The pushing force of the pneumatic pusher 4 is greater than 1.5 of the bending force of the heated steel card blank 3; the pressing force of the pneumatic fastening clamp 6 is 1.5 times greater than the pushing force of the pneumatic pusher 4.

Preferably, the shape of the pneumatic fastening clamp 6 is matched with the inner arc radius and the outer arc radius of the steel card blank 3.

Preferably, a heat insulation material is arranged at the joint of the heating solid ferrule 5 and the vertical electric appliance cabinet 71.

Preferably, the heating solid ferrules 5 at the two ends of the steel card blank 3 are respectively connected to two step-up transformers in the vertical electric appliance cabinet 71.

Preferably, the electromagnetic forming machine 7 heats the steel card blank 3 at a second speed through a magnetic pulse solid ring of a step-up transformer, and reduces the compressive strength of the metal in a normal temperature state through high-temperature softening, so as to achieve the purpose of die-pressing various workpieces with complex shapes. The acting force of the electromagnetic forming machine 7 during electromagnetic forming is 300-500MPa, the thermal deformation speed of the material is 300m/S, the electromagnetic forming pulse current is 100-400KA, the discharge period is 100us, and electromagnetic auxiliary extrusion forming is adopted.

As a preferable scheme, the operation platform 2 uses channel steel as a frame 21, a steel plate 22 is laid on the frame 21 as a working table, sliding guide rail seats 23 are arranged on two sides of a central line of the bottom of the frame 21, the sliding guide rail seats 23 are erected on parallel guide rails 13, the bottom of the frame 21 is connected with a transmission screw rod 12 through a fixing nut, and the transmission screw rod 12 is connected with a stepping motor 11.

As a preferable scheme, the control platform 2, the pneumatic pusher 4 and the pneumatic fastening clamp 6 are all instructed to work by a control panel 77; the temperature of the heated solid ferrule 5 is controlled by a control panel 77; the rotation direction and the rotation speed of the stepping motor 11 are controlled by a control panel 77.

A forming method of a lower steel hoop forming device of a special heat insulation pipe bracket based on a long-distance low-energy-consumption heat supply network comprises the following steps:

s1, clamping the steel card blank 3 by the pneumatic fastening clamp 6, so that two ends of the steel card blank 3 extend out of the pneumatic fastening clamp 6;

s2, respectively extending the extending ends of the two ends of the steel card blank 3 into a heating solid ferrule 5;

s3, starting the energy storage device 71 to heat the steel card blank 3 sleeved with the heating solid ferrule 5; the heated steel card blank 3 exits from the heating solid ferrule 5;

and S4, applying force to the two pneumatic pushers 4 to bend the heated steel card blank 3 inwards.

According to the invention, the arc length of the original arc-shaped steel hoop 201 and the lengths of the two original bolt seats 202 on the opposite sides are added together to be used as the blanking length, namely the total length of the steel card blank 3, then the heating solid ferrule 5 is heated through the electromagnetic forming machine 7, so that the corresponding positions of the two opposite ends of the steel card blank are heated, and then the steel card blank is extruded and formed through the pneumatic pusher 4. The processing method effectively saves manpower and welding material cost.

The steel card blank 3 is clamped, fixed and heated to be formed. Meanwhile, a pneumatic pusher 4 is respectively arranged on two sides of the central line of the control platform 2. The steel card blank 3 fixed on the table top according to the fixed position is heated and then is extruded by a pneumatic pusher 4 to be heated and formed. And the pneumatic fastening clamps 6 are respectively arranged on two sides of the central line on the surface of the control platform 2, the pneumatic fastening clamps 6 are pneumatically compressed, and the steel card blank 3 is transferred to the heating solid ferrule 5 from the control platform 2 after being compressed, is rapidly heated, formed and retreated at the position of the pneumatic pusher 4 and is extruded and formed by a die head. After the steel card blank 3 is extruded and formed, under the instruction of the control panel 77, the extrusion die is retreated, the clamp is loosened and lifted, and the steel card blank 3 is transported out. The pneumatic clamp 6 has the functions of fastening the steel card blank 3, the fastening force is greater than that of a pneumatic pusher, and the pneumatic clamp has a quick clamping function.

The working principle of the invention is as follows: the heat energy emitted by the energy accumulator 71 is pre-calculated according to the local heated volumes at the two ends of the steel card blank 3 and is conducted on the heating solid-state collar for standby. The electromagnetic forming machine 7 is fixed, and the running rail of the stepping motor is arranged on two parallel rails 13 by a working table frame and is connected with a transmission screw rod into a whole to do front and back linear fixed running. The control platform is fastened by matching pneumatic fastening clamps 6 at two sides according to the specification of the steel card blank 3. And the part to be heated of the steel card blank 3 is exposed, the control platform 2 drives the steel card blank 3 to insert two ends of the steel card blank into the heating solid ferrule 5 in the conveying of the stepping motor 11, and the steel card blank is heated and formed at the highest speed under the electromagnetic action. The heated and formed steel card blank 3 exits from the set position under the instruction of the control panel 77, and the left and right pneumatic pushers 4 start to perform hot extrusion work at the moment. And finally, finishing the integrated processing and forming process of the lower steel hoop of the heat insulation pipe bracket.

The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.