CN104723107A - Continuous pushing and cutting equipment for entire pipe of bend - Google Patents

Abstract

The invention provides a continuous pushing and cutting equipment for the whole pipe of the elbow, which includes an annular cutting device, a clamping device, an angle measuring device, a heating device and a mobile supporting device. The tightening device is fixed on the mobile support device; heating devices are installed on both sides of the bending part of the elbow; an annular cutting device is installed at the place to be cut of the elbow; the annular cutting device includes a flame cutting device on both sides of the elbow and a fixed flame The annular ring of the cutting device, the annular ring is fixed on the mobile support device, the annular cutting device cuts the elbow 360°, and the cutting heads of the two flame cutting devices work at the same time; an angle measuring device is installed at the bending part of the elbow. The whole pipe continuous pushing and ring cutting device adopts full material length pushing, which improves the material utilization rate and work efficiency; ensures and improves the quality of the elbow, and reduces equipment, personnel investment and energy consumption.

Description

A continuous pushing and cutting equipment for the whole pipe of the elbow

technical field

The invention relates to a continuous pushing and cutting equipment for whole pipes of elbows, which belongs to the technical field of machinery.

Background technique

At present, the hot push elbow process is a manufacturing process that uses a small section of steel pipe to be cut and pushed to form an elbow. The hot push elbow is aimed at the expansion of a single elbow, and only pushes one elbow. The process is blanking, pushing, shaping, and scribing and cutting. This process has the following defects: (1) due to single push, the elbow pipe port presents a horseshoe shape, the diameter and ellipticity of the pipe port are poor, and the end face of the pipe port is uneven; (2) the inner wall of the pipe port is thin, and the wall thickness is reduced. The thinness rate is poor; (3) 30-50mm of material needs to be cut off at one end, there are too many waste materials, and the material utilization rate is low. (4) Large investment in equipment and personnel and serious energy consumption. During the hot pushing process, the port of the tube blank cannot be tightly attached to the mandrel under the action of the pushing force, resulting in the appearance of a horseshoe shape at the elbow tube port, poor diameter and ellipticity of the nozzle, uneven end surface of the nozzle, Defects such as thin pipe wall and large wall thickness reduction rate on the inner side of the pipe port. There must be a considerable margin when cutting the material, and the port must be cut and processed again after the semi-finished product is pushed. The process is complicated and wastes materials, and the productivity is low.

Contents of the invention

The invention provides a continuous push cutting equipment for the whole pipe of the elbow, which can ensure that the elbow blank is always close to the mandrel. After the first semi-finished product is pushed out of the mandrel, it is cut quickly and then continues to be pushed. This process has a high degree of automation, simple operation by personnel, and greatly improved production efficiency. It solves the defects of the previous process and saves raw materials at the same time.

In order to solve the above technical problems, the present invention provides the following technical solutions: a continuous pushing and cutting equipment for the whole pipe of the elbow, the elbow and the whole pipe are sleeved on the mandrel, and the mandrel is fixed on the pushing machine, including a ring cutting device, Clamping device, angle measuring device, heating device and mobile support device, the mobile support device moves on the frame with rails, the clamping device is fixed on the mobile support device; the two sides of the bending part of the elbow are provided with heating devices; An annular cutting device is provided at the place to be cut of the elbow; the annular cutting device includes a flame cutting device on both sides of the elbow and an annular ring for fixing the flame cutting device, the annular ring is fixed on the mobile support device, and the annular cutting device For 360° cutting, the cutting heads of the two flame cutting devices work at the same time; an angle measuring device is installed at the bending part of the elbow; the whole length of pipe material is loaded on the mandrel of the pusher, and the moving support part is adjusted to make the circle Align the center of the ring with the falling center of the elbow, and then move the angle measuring device to reach the required angle position before clamping; after the preparations are completed, turn on the heating device, and the entire length of pipe material is slowly pushed through the mandrel at a uniform speed, when the elbow touches the angle When the measuring device is in operation, it stops immediately, and the clamping device clamps the entire length of the pipe material and the elbow. The elbow cutout is above the mobile support device, and the ring cutting device works. The quickly cut elbow falls into the lower transmission device and is pushed. Work continues until the full length of pipe material is exhausted.

Among them, the mobile support part mainly completes the support for the other parts and the intermediate frequency heating device, and its positioning device can ensure that the elbow blank is cut concentrically, and it can also move out of the working position when the production is stopped.

The clamping device ensures the stability of the elbow blank and the quality of the cut during the cutting process.

Further, the clamping device includes two chucks arranged on both sides, a clamp arm, a support arm, a connecting rod, a connecting plate used to hinge the two connecting rods, a rack for controlling the connecting plate, a gear and a motor; The rack is connected to the gear, the rack directly holds the connecting plate, and the gear is controlled by the motor; the two connecting rods respectively hinge the two clamp arms, and the two clamp arms respectively hinge the two chucks, the two support arms are hinged at the middle of the clamp arm, and the support arm is fixed on the mobile The supporting device, the two clamping arms take the supporting arm as the fulcrum, and the clamping head is opened and closed under the control of the rack and pinion.

Further, the clamping device includes upper and lower parts, which are respectively located above and below the mobile support device, and the connection structures of the chucks, clamp arms, support arms, and connecting rods of the upper and lower parts are the same. After some rods are connected, they are jointly hinged to the same connecting plate.

Further, the heating device includes a bracket, a heating plate and a heating tube, the bracket is fixed on the top of the movable support plate, the bracket is on both sides of the elbow, the heating plate is two pieces and is on both sides of the upper part of the elbow, and the bracket on each side There are two groups, the two groups of brackets jointly fix a heating plate, and a group of heating tubes are connected between the two heating plates.

Further, the bracket is a height-adjustable bracket.

Further, the mobile support device includes a support plate and rollers, the rollers are rollingly connected to the track on the top of the frame, and the rollers are connected under the support plate.

Further, a hole is provided on the support plate where the angle measuring device is connected, and the angle measuring device protrudes downward from the hole to measure the bending degree of the processed elbow until the lower part of the pipe is bent. The angle measuring device will measure the angle of the elbow from the cutting position to the end of the elbow. According to the production requirements, the worker can obtain the angle of the pushed elbow from above and control when the cutting part starts to work;

Further, the pipe diameter of the elbow is 219mm~1200mm.

The whole pipe continuous pushing and ring cutting device of this invention involves in the elbow pushing process, in order to ensure that the elbow blank is always close to the mandrel, the whole pipe and the whole material are used for long pushing. After the first semi-finished product is pushed out of the mandrel, it is quickly cut, and the blanks to be cut and cut are clamped separately to ensure the stability of the elbow blank and the quality of the cut during the cutting process. The angle measuring device measures the angle of the elbow from the cutting position to the end of the elbow. According to the production requirements, the worker can obtain the angle of the pushed elbow from above and control when the cutting part starts to work. The mobile support part mainly completes the support for the other parts and the intermediate frequency heating device, and its positioning device can ensure that the elbow blank is cut concentrically, and it can also move out of the working position when the production is stopped.

Description of drawings

Fig. 1 is the front view of the structure of the whole pipe continuous pushing and cutting equipment of the elbow of the present invention;

Fig. 2 is a side view of the structure of the whole pipe continuous pushing and cutting equipment of the elbow of the present invention;

Fig. 3 is a top view of the clamping device of the present invention;

Fig. 4 is a schematic diagram of the clamping device of the present invention;

Fig. 5 is a schematic structural diagram of an angle measuring device of the present invention;

1 mandrel; 2 heating device; 3 moving support part; 4 clamping device; 5 ring cutting device; 6 elbow; 7 angle measuring device; 8-frame; 21-heating tube; ; 41- chuck; 42-support arm; 43-jaw arm; 44-connecting rod;

Detailed ways

As shown in Figure 1-Figure 5, the applicable elbow diameter of this equipment is 219mm~1200mm. The continuous pushing and cutting equipment includes a heating device 2, a mobile supporting device 3, a clamping device 4, an annular cutting device 5, and an angle measuring device 7. The mobile supporting device 3 moves on a frame 8 provided with a track, and the clamping device 4 is fixed. On the mobile supporting device 3; the heating device 2 is provided on both sides of the bending part of the elbow 6; the annular cutting device 5 is arranged at the place to be cut of the elbow 6; the annular cutting device 5 includes a flame cutting device on both sides of the elbow and the annular ring of the fixed flame cutting device, the annular ring is fixed on the mobile support device 3, the annular cutting device 3 cuts the elbow 6 at 360°, and the cutting heads of the two flame cutting devices work at the same time; There is an angle measuring device 7 at the bottom; put the whole length of pipe material into the mandrel 1 of the pushing machine, adjust the mobile support part 3 so that the center of the ring is aligned with the falling center of the elbow 6, and then move the angle measuring device 7 to meet the requirements After the angle position is clamped; after the preparation work is done, turn on the heating device 2, and the entire length of pipe material is slowly pushed through the mandrel 1 at a uniform speed. When the elbow 6 touches the angle measuring device, stop immediately, and the clamping device The material and the elbow are clamped, the elbow cutout is above the mobile support device 3, the ring cutting device 5 works, the quickly cut elbow 6 falls into the lower transmission device, and the pushing work cycle continues until the entire length of the pipe material is processed until the end.

As shown in Figure 3, the clamping device 4 comprises two chucks 41 arranged on both sides, a clamp arm 43, a support arm 42, a connecting rod 44, and a connecting plate 45 for hinged two connecting rods 44, a control connecting plate 45 rack 48, gear 47 and motor 46; rack 48 connects gear 47, and rack 48 directly pins down connecting plate 45, and gear 47 is controlled by motor 46; Hinge two chucks 41 again, two support arms 42 are hinged at the middle part of clamp arm 43, the hinge point that both connects is positioned at the hinge point of clamp arm and chuck and the hinge point of clamp arm and connecting rod, and support arm 42 is fixed In the mobile supporting device 3, the two clamping arms take the supporting arm as the fulcrum, and the clamping head is opened and closed under the control of the rack and pinion.

As shown in Figure 4, the clamping device 4 includes upper and lower parts. The upper and lower parts of the clamping device respectively clamp and fix the entire length of the pipe material and the elbow up and down. The upper and lower parts are respectively located above and below the mobile support device 3. , the connection structures of the upper and lower parts of the chuck, clamp arm, support arm and connecting rod are the same, and these parts of the rods are jointly hinged to the same connecting plate 45 after being connected.

As shown in Figures 1 and 2, the heating device 2 includes a support 23, a heating plate 22 and a heating tube 21, the support 23 is fixed on the top of the mobile support plate, the support 23 is on both sides of the elbow, and the heating plate 22 is two pieces parallel to each other. On both sides of the upper part of the elbow, there are two groups of brackets 23 on each side. The two groups of brackets 23 jointly fix a heating plate 22, and two heating plates 23 are connected with arrays of heating tubes 21; the brackets 23 are height-adjustable brackets.

As shown in Figures 1 and 2, the mobile support device 3 includes a support plate and rollers, the rollers are rollingly connected to the track on the top of the frame, and the rollers are connected below the support plate; as shown in Figure 5, the angle measuring device is connected on the support plate There is a hole at the bottom, and the angle measuring device protrudes downward from the hole, and ends at the critical point where the lower part of the pipe is bent, and measures the bending degree of the processed elbow.

The whole pipe continuous pushing and ring cutting device of the elbow involved in the present invention adopts the full material length pushing, which improves the material utilization rate and work efficiency; integrates "cutting and blanking + hot pushing + scribing + cutting" For "pushing + cutting", the quality of elbows is guaranteed and improved, and equipment, personnel investment and energy consumption are reduced.

The specific implementation methods described in the present invention do not constitute a limitation to the scope of the application. Any modifications, equivalent replacements and improvements that can be made by professionals in the field within the spirit and principles of the present invention should be included in this application. within the scope of protection of the invention.

Claims (8)

1. the continuous pushing cutting equipment of the homogeneous tube of an elbow, elbow and homogeneous tube are enclosed within plug, plug is fixed in push machine, it is characterized in that, continuous pushing cutting equipment comprises annular cutting device, clamping device, angle measurement unit, heater and Mobile support device, Mobile support device moves in the frame being provided with track, and clamping device is fixed on Mobile support device; The bend both sides of elbow are provided with heater; Annular cutting device is provided with at the place to be cut of elbow; Annular cutting device comprises the annular ring of flame-cutting plant and the fixing flame-cutting plant being in elbow both sides, annular ring is fixed on Mobile support device, annular cutting device carries out the cutting of 360 ° to elbow, and the cutting head of two flame-cutting plants works simultaneously; Angle measurement unit is provided with at the bend of elbow.

2. the continuous pushing cutting equipment of the homogeneous tube of a kind of elbow according to claim 1, it is characterized in that, described clamping device comprises two chucks, jig arm, support arm, the connecting rod and for the tooth bar of the connecting plate of hinged two connecting rods, control connection plate, gear and motor that are arranged on both sides; Tooth bar connects gear, and tooth bar directly pins down connecting plate, and gear is by Electric Machine Control; Two connecting rods are hinged two jig arm respectively, and two jig arm difference hinged two chucks again, two support arms are articulated with in the middle part of jig arm, and support arm is fixed on Mobile support device, and two jig arm take support arm as fulcrum, under rack-and-pinion controls, make chuck do the motion of opening and closing.

3. the continuous pushing cutting equipment of the homogeneous tube of a kind of elbow according to claim 2, it is characterized in that, described clamping device comprises upper and lower two parts, upper and lower two parts lay respectively at the upper and lower of Mobile support device, the syndeton of the chuck of upper and lower two parts, jig arm, support arm, connecting rod is all identical, common hinged same connecting plate after this few part rod member connects.

4. the continuous pushing cutting equipment of the homogeneous tube of a kind of elbow according to claim 1, it is characterized in that, described heater comprises support, heating plate and heating tube, support is fixed on the top of movable support plate, support is in the both sides of elbow, and heating plate is two pieces and is in both sides, elbow top, and the support of every side is two groups, two pack supports fix one piece of heating plate jointly, connect array heating tube between two heating plates.

5. the continuous pushing cutting equipment of the homogeneous tube of a kind of elbow according to claim 4, is characterized in that, described support is brackets with height-adjustable.

6. the continuous pushing cutting equipment of the homogeneous tube of a kind of elbow according to claim 1, it is characterized in that, described Mobile support device comprises gripper shoe and roller, and roller rolls and is connected to the track of frame top, connects roller below gripper shoe.

7. the continuous pushing cutting equipment of the homogeneous tube of a kind of elbow according to claim 6, it is characterized in that, in described gripper shoe, connection angle measurement mechanism place is provided with hole, and angle measurement unit stretches out downwards from this hole, end in materials in the tube bottom by curved critical part, measure the flexibility of processed elbow.

8. the continuous pushing cutting equipment of the homogeneous tube of a kind of elbow according to claim 1, is characterized in that, the caliber of described elbow is 219mm ~ 1200mm.