CN113617952A - Drying rack elbow lap joint reaming forming machine - Google Patents
Drying rack elbow lap joint reaming forming machine Download PDFInfo
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- CN113617952A CN113617952A CN202110922520.8A CN202110922520A CN113617952A CN 113617952 A CN113617952 A CN 113617952A CN 202110922520 A CN202110922520 A CN 202110922520A CN 113617952 A CN113617952 A CN 113617952A
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- 238000001035 drying Methods 0.000 title claims abstract description 31
- 238000003825 pressing Methods 0.000 claims abstract description 51
- 230000000712 assembly Effects 0.000 claims description 9
- 238000000429 assembly Methods 0.000 claims description 9
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000008439 repair process Effects 0.000 abstract description 4
- 238000005219 brazing Methods 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
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Classifications
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- 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
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/08—Tube expanders
- B21D39/20—Tube expanders with mandrels, e.g. expandable
-
- 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
-
- 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
- B21D43/006—Feeding elongated articles, such as tubes, bars, or profiles
-
- 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
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/06—Bending rods, profiles, or tubes in press brakes or between rams and anvils or abutments; Pliers with forming dies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The utility model provides a stoving frame return bend overlap joint reaming make-up machine, includes: the top of the machine body is provided with a linear sliding rail along an X axis; the portal frame is transversely spanned above the machine body; the feeding driving component is fixed on one side of the machine body and controls the moving of the movable workbench; the movable workbench is movably arranged on the slide rail and is connected with the output of the feeding driving assembly, and the drying rack is placed on the movable workbench and limited in the horizontal plane; the pipe expanding assembly is fixed at one end of the machine body and is used for expanding the hole of the drying rack bent pipe; the pipe pressing assembly is arranged on the door frame, vertically and downwards compresses the drying frame, and the drying frame bent pipe is vertically limited. The reaming forming machine can rapidly ream the end part of the bent pipe inserted into the vertical pipe, so that the connecting part of the bent pipe and the vertical pipe is firmly and tightly attached, the connecting strength of a product and the qualified rate of pressure test after brazing are improved, the reject ratio and the repair workload are reduced, and the quality and the production efficiency of the product are improved.
Description
Technical Field
The invention relates to the field of reaming forming machines, in particular to a drying rack bent pipe lap joint reaming forming machine.
Background
In the prior art, in the assembly process of the drying rack, the assembly process of the elbow and the vertical pipe inserts the elbow into the vertical pipe and then connects the elbow and the vertical pipe by using a gas shielded welding or resistance welding method, but the two connection modes have the defects of air holes, insufficient welding and the like in production practice, so that the product quality is unstable, the yield is low, the repair workload is large, and the cost is high.
Disclosure of Invention
The present invention provides a drying rack elbow lap joint reaming forming machine to solve the problems in the prior art, and the present invention is further explained below.
The utility model provides a stoving frame return bend overlap joint reaming make-up machine, includes: the top of the machine body is provided with a linear sliding rail along an X axis; the portal frame is transversely spanned above the machine body; the feeding driving component is fixed on one side of the machine body and controls the moving of the movable workbench; the movable workbench is movably arranged on the slide rail and is connected with the output of the feeding driving assembly, and the drying rack is placed on the movable workbench and limited in the horizontal plane; the pipe expanding assembly is fixed at one end of the machine body and is used for expanding the hole of the drying rack bent pipe; the pipe pressing assembly is arranged on the door frame, vertically and downwards compresses the drying frame, and the drying frame bent pipe is vertically limited.
Preferably, the portal comprises upright columns positioned at two sides of the body and an upper beam connected to the tops of the upright columns and transversely stretched above the body, and two sides of the upper beam are connected with the C-shaped plates; an installation space is formed between the upper cross beam and the C-shaped plate, and the pressure pipe assembly is arranged in the space.
Preferably, the feeding driving assembly comprises a support, a servo motor, a coupler, a sliding block, a lead screw, a first bearing seat and a second bearing seat, wherein the support, the first bearing seat and the second bearing seat are fixedly connected to the machine body; the servo motor is fixed on the support, the two ends of the screw rod are matched on the first bearing seat and the second bearing seat, the output of the servo motor is connected with one end of the screw rod through the coupler, the sliding block is arranged on the screw rod and matched with the screw rod, and the sliding block is upwards connected with the movable workbench.
Preferably, the movable workbench comprises a base, a linear slide rail, a clamping cylinder, a fixed clamp, a movable clamp and a positioning block; the base is formed by connecting steel plate cross combinations, one side is provided with a fixed clamp, and the other side is provided with a movable clamp; linear slide rails are arranged between the fixed clamp and the movable clamp at intervals, and the movable clamp is arranged on the linear slide rails; the body of the clamping cylinder is fixed on a connecting plate in the middle of the base, and the piston rod end of the clamping cylinder is connected with the movable clamp; the positioning blocks are fixed on two sides of the front end of the base and used for positioning the drying rack.
Preferably, the pipe expanding assembly comprises a fixed seat, two groups of pipe expanding oil cylinders and two pipe expanding gun rods, wherein the fixed seat is fixed on the machine body, the pipe expanding oil cylinders are arranged on the fixed seat, and the two pipe expanding gun rods are respectively arranged on the output of the pipe expanding oil cylinders; the pipe expanding gun rod comprises an outer sleeve, an inner connecting rod, an inclined ejector rod, a gun chamber seat, a spring piece and a pipe expanding head; the pipe expanding oil cylinder is connected to the fixed seat through a pipe expanding oil cylinder seat on the pipe expanding oil cylinder, an inner connecting rod is arranged in the outer sleeve, the rear end of the outer sleeve is connected with a flange of the pipe expanding oil cylinder seat, and the front end of the outer sleeve is connected with the gun bore seat through threads; the rear end of the inner connecting rod is connected with the output of the pipe expanding oil cylinder, and the front end of the inner connecting rod is in threaded connection with the inclined ejector rod; the bore seat is arranged at the pipe orifice of the outer sleeve, one end of the spring piece is connected and fixed on the bore seat, the other end of the spring piece is a free end and extends to the pipe orifice of the outer sleeve, and the tube expanding head is arranged at the free end of the spring piece.
Preferably, the bottom surface of the free end of the spring piece is provided with an inclined contact surface, and a gap is formed between the bottom surface of the free end of the spring piece and the gun bore seat in an undeformed state; the oblique ejector rod can smoothly contact and support the free end of the spring piece, and the condition that the oblique ejector rod is broken due to mechanical impact can be avoided.
Preferably, the pipe pressing assembly comprises a mounting flange, a pipe pressing oil cylinder and a pipe pressing die, the mounting flange is fixed on the upper cross beam and used for mounting the pipe pressing oil cylinder, the output of the pipe pressing oil cylinder is connected with the pipe pressing die, and the pipe pressing oil cylinder controls the pipe pressing die to lift in the vertical direction.
Preferably, the shape of the pipe pressing die is set according to the shape of the bent pipe, the pipe pressing die is symmetrically pressed on the bent pipe of the drying rack, and an included angle between the acting force on the bent pipe and the vertical direction is 45 degrees; the resultant force of the pipe pressing die to the bent pipe is in the vertical direction, the bent pipe is prevented from being pressed to generate deformation to the maximum extent, and particularly the situation that the pipe expanding head cannot be accurately aligned to the to-be-punched hole of the bent pipe due to inward bending of the bent pipe is avoided.
Preferably, when the spring piece is not deformed, the free end of the spring piece is lower than the fixed end, and when the oblique ejector rod just completely supports the free end of the spring piece, the displacement direction of the pipe expanding head is just in the vertical direction; the pipe expanding head has small displacement, can move approximately linearly, can be accurately aligned to the bent pipe hole, and finally has uniform hole expanding effect on the bent pipe hole in the whole circumferential direction.
Preferably, the movable workbench further comprises a roller bracket, the roller bracket comprises a bracket fixed on the base and a roller pivoted on the bracket, and the pipe expanding gun rod is placed on the roller; the roller provides support force for the roller and guides the roller to advance, and the bending moment load of the pipe expanding gun rod on the connection position of the pipe expanding oil cylinder seat is reduced.
Preferably, the pipe pressing assembly further comprises a guide rod, an anti-rotation plate and a fixed block, wherein the anti-rotation plate is arranged on the output of the pipe pressing oil cylinder, two ends of the anti-rotation plate are connected with the guide rod, the guide rod upwards penetrates through the mounting flange, and the fixed block is arranged on the anti-rotation plate and used for mounting a pipe pressing die; the guide rod has a guiding effect on the output of the pipe pressing oil cylinder, so that the movement of the pipe pressing oil cylinder is more stable, and meanwhile, the guide rods are arranged on the anti-rotation plates on two sides, so that the rotation freedom degree of the anti-rotation plates is eliminated, and a pipe pressing die can be accurately pressed on the bent pipe.
Preferably, at least one group of pipe pressing assemblies are movable groups, the upper cross beam is provided with a movable groove, the movable groove provides a movable space for adjusting the displacement of the movable group of pipe pressing assemblies, and the mounting flange is provided with a fastener penetrating through the movable groove to complete position fixing; at least one group of pipe expanding oil cylinders are movable groups, the pipe expanding assembly further comprises an adjusting assembly, the adjusting assembly comprises guide strips arranged on two sides of the fixing seat, a sliding groove is formed between the two guide strips, the pipe expanding oil cylinder seat is arranged in the sliding groove, one side of the pipe expanding oil cylinder seat is connected to the output of the adjusting assembly, and the sliding distance of the pipe expanding oil cylinders in the sliding groove is controlled by controlling the adjusting assembly.
Has the advantages that: compared with the prior art, the reaming forming machine can rapidly ream the end part of the bent pipe inserted into the vertical pipe, so that the joint of the bent pipe and the vertical pipe is firmly and tightly attached, the connecting strength of a product and the qualified rate of pressure test after brazing are improved, the reject ratio and the repair workload are reduced, and the quality and the production efficiency of the product are improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the front view pipe device of the portal;
FIG. 3 is a schematic view of a feed driving device;
FIG. 4 is a schematic structural view of a movable table;
FIG. 5 is a schematic view of the structure of the pipe expanding device;
FIG. 6 is a schematic view of a crimp device;
fig. 7 is a schematic view of the structure of the pipe expanding gun rod.
Detailed Description
A specific embodiment of the present invention will be described in detail with reference to fig. 1-7.
In this embodiment, the longitudinal direction of the main body 1, that is, the traveling direction of the drying rack 7 to be reamed, is taken as the X-axis direction.
A drying rack elbow lap joint reaming forming machine comprises a machine body 1 serving as a main body bearing structure, a portal 2, a feeding driving assembly 3, a movable workbench 4, a pipe expanding assembly 5 and a pipe pressing assembly 6, wherein two linear slide rails 101 arranged along an X axis are arranged on the machine body 1, the movable workbench 4 is movably arranged on the slide rails 101, the feeding driving assembly 3 is fixed at one end of the machine body 1, the output of the feeding driving assembly 3 is connected with the movable workbench 4 and is used for driving the movable workbench 4 to perform feeding motion along the X axis, a drying rack 7 is placed on the movable workbench 4, and the movable workbench 4 limits the drying rack 7 in the horizontal plane; the middle section of fuselage 1 sets up portal 2, and two sets of pipe subassemblies 6 that press are set up on portal 2, press the output of pipe subassembly 6 perpendicularly downwards and sticiss on the return bend of stoving frame 7, treat that the reaming return bend carries out perpendicular spacing to, expand pipe subassembly 5 sets up at the other end of fuselage 1, and its output is being perpendicularly to producing reaming output.
Referring to fig. 2 and 6, the gantry 2 is a gantry combined frame, is connected to the body 1 by a flange, and includes two upright posts 21 located at two sides of the body 1 and used for bearing, and an upper beam 22 connected to the tops of the upright posts 21 and extending above the body 1, two sides of the upper beam 22 are connected to C-shaped plates 23, an installation space is formed between the upper beam 22 and the C-shaped plates 23, and the pressure pipe assembly 6 is disposed in the space.
Referring to fig. 3, the feeding driving assembly 3 includes a support 31, a servo motor 32, a coupling 33, a slider 34, a lead screw 35, a first bearing seat 36 and a second bearing seat 37; the support 31, the first bearing seat 36 and the second bearing seat 37 are fixedly connected to the machine body 1, the servo motor 32 is fixed to the support 31, two ends of the lead screw 35 are matched to the first bearing seat 36 and the second bearing seat 37, the output of the servo motor 32 is connected to one end of the lead screw 35 through the coupler 33, the sliding block 34 is arranged on the lead screw 35 and matched to the lead screw 35, and the sliding block 34 is upwards connected with the movable workbench 4. The servo motor 32 starts and stops rotating according to the instruction, the screw 35 is driven to rotate through the coupling 33, and the rotating screw 35 further drives the sliding block 34 to advance together with the movable workbench 4 to a set position to wait for pipe expansion.
Referring to fig. 4, the movable table 4 includes a base 41, a linear slide rail 42, a clamping cylinder 43, a fixed clamp 44, a movable clamp 45, and a positioning block 46; the base 41 is formed by connecting steel plate cross combinations, one side is provided with a fixed clamp 44, the other side is provided with a movable clamp 45, four linear slide rails 42 are arranged between the fixed clamp 44 and the movable clamp 45 at intervals, and the movable clamp 45 is arranged on the linear slide rails 42; the body of the clamping cylinder 43 is fixed on a connecting plate in the middle of the base 41, and the piston rod end of the clamping cylinder 43 is connected with the movable clamp 45; the positioning blocks 46 are fixed at both sides of the front end of the base 41 and used for positioning the drying rack. The clamping cylinder 43 controls the movable clamp 45 to slide on the linear slide rail 42 to change the distance between the fixed clamp 44 and the movable clamp 45, so as to clamp or loosen the drying rack.
Referring to fig. 5 and 7, the pipe expanding assembly 5 includes a fixing base 51, two sets of pipe expanding cylinders 53, and two pipe expanding gun rods 54, wherein the fixing base 51 is fixed on the machine body 1, the pipe expanding cylinders 53 are arranged on the fixing base 51, and the two pipe expanding gun rods 54 are respectively arranged on the output of the pipe expanding cylinders 53.
The pipe expanding gun rod 54 comprises an outer sleeve 541, an inner connecting rod 542, an inclined ejector rod 543, a gun bore seat 544, a spring piece 545 and a pipe expanding head 546; the output of the pipe expanding oil cylinder 53 is connected with a pipe expanding oil cylinder base 531, an outer sleeve 541 is internally provided with an inner connecting rod 542, the rear end of the outer sleeve 541 is in flange connection with the pipe expanding oil cylinder base 531, and the front end of the outer sleeve 541 is in threaded connection with a gun bore base 544; the rear end of the inner connecting rod 542 is in threaded connection with the piston rod of the pipe expanding oil cylinder 53, and the front end of the inner connecting rod is in threaded connection with the inclined ejector rod 543; the bore seat 544 is disposed at the nozzle of the outer tube 541, one end of the spring plate 545 is connected and fixed to the bore seat 544, the other end is a free end extending to the nozzle of the outer tube 541, and the tube expanding head 546 is disposed at the free end of the spring plate 545.
The piston rod of the tube expanding cylinder 53 extends out to drive the inner connecting rod 542 and the inclined top rod 543 to advance, the inclined top rod 543 advances to contact and support the free end of the spring piece 545, so that the spring piece 545 is elastically deformed to tilt upwards and drive the tube expanding head 546 to move upwards to expand the bent tube of the drying rack, and after the tube expansion is finished, the piston rod of the tube expanding cylinder 53 retracts to drive the inner connecting rod 542 and the inclined top rod 543 to retreat, so that the spring piece 545 automatically restores to be elastically deformed and drives the tube expanding head 546 to reset.
In this embodiment, in order to ensure that the inclined top rod 543 can smoothly contact and lift the free end of the spring piece 545 and prevent the inclined top rod 543 from directly striking against the side surface of the free end of the spring piece 545, the bottom surface of the free end of the spring piece 545 is provided with an inclined contact surface 5451, and a gap exists between the bottom surface of the free end of the spring piece 545 and the barrel seat 544 in an undeformed state, so that the condition that the inclined top rod 543 is broken due to mechanical striking can be avoided.
Referring to fig. 6, the two pressure pipe assemblies 6 are arranged inside the upper cross beam 22 of the gantry 2, any one of the two pressure pipe assemblies includes an installation flange 61, a pressure pipe cylinder 62 and a pressure pipe die 66, the installation flange 61 is fixed on the upper cross beam 22 and used for installing the pressure pipe cylinder 62, the output of the pressure pipe cylinder 62 is connected with the pressure pipe die 66, and the pressure pipe cylinder 62 controls the pressure pipe die 66 to lift in the vertical direction so as to press or loosen the bent pipe of the drying rack.
The shape of the pipe pressing die 66 is set according to the shape of the bent pipe, and during pipe expanding, the pipe pressing oil cylinder 62 controls the pipe pressing die 66 to be symmetrically pressed on the bent pipe of the drying rack, and an included angle of 45 degrees between the acting force on the bent pipe and the vertical direction is optimal, so that the resultant force of the pipe pressing die 66 on the bent pipe is in the vertical direction, the bent pipe is prevented from being pressed to generate deformation to the maximum extent, and particularly, the situation that the pipe expanding head 546 cannot be accurately aligned to the to-be-punched hole of the bent pipe due to inward folding of the bent pipe is avoided.
The position fixation when this embodiment realizes reaming through mounting fixture 44, movable clamp 45, locating piece 46 and die 66's combined action, when reaming, in order to hold up the mouth piece 546 and move up and get into the return bend area reaming through the perk of spring leaf 545 free end, ream to the hole, but the one end of spring leaf 54 of this embodiment is fixed, the free end is actually to do arc motion with the fixed point as the centre of a circle for it is not linear displacement to move up the mouth piece 546, and then makes the inhomogeneous reaming of reaming. In this embodiment, to solve this problem, the length of the spring plate 54 is longer, and when the spring plate is not deformed, the free end is lower than the fixed end, and after the inclined post 543 just fully supports the free end of the spring plate 54, the displacement direction of the pipe expanding head 546 is just in the vertical direction. It should be noted that the height of the inclined push rod 543 is much smaller than the length of the spring piece 54, so that the displacement of the tube expanding head 546 is small, and the tube expanding head may move approximately linearly under the arrangement of the present embodiment, and can be accurately aligned to the bent tube hole, and finally has a uniform hole expanding effect on the bent tube hole in the whole circumference direction.
The drying rack has a certain length, the automatic reaming operation of the bent pipe of the drying rack is realized, the pipe expanding gun rod 54 has a high length-diameter ratio, in order to reduce the bending moment load of the pipe expanding gun rod 54 on the connection part of the pipe expanding oil cylinder seat 531, the movable workbench 4 of the embodiment further comprises a roller bracket 47, the roller bracket 47 comprises a bracket 471 fixed on the base 41 and a roller 472 pivoted on the bracket 471, the pipe expanding gun rod 54 is placed on the roller 472, and the roller 472 provides a supporting force for the roller 472 and guides the advance of the roller 472.
The pipe pressing assembly 6 further comprises a guide rod 63, an anti-rotation plate 64 and a fixing block 65, so that the pipe pressing die 66 can be replaced, disassembled and assembled conveniently and the stability of action is ensured, the anti-rotation plate 64 is arranged on the output of the pipe pressing oil cylinder 62, the two ends of the anti-rotation plate 64 are connected with the guide rod 63, the guide rod 63 upwards penetrates through the mounting flange 61, and the fixing block 65 is arranged on the anti-rotation plate 64 and used for mounting the pipe pressing die 66; the guide rod 63 is arranged to guide the output of the pipe pressing oil cylinder 62, so that the movement of the pipe pressing oil cylinder is more stable, and meanwhile, the guide rods 63 arranged on the two sides of the anti-rotation plate 64 eliminate the rotation freedom degree of the anti-rotation plate 64, so that the pipe pressing die 66 can be accurately pressed on the bent pipe.
In fact, there are multiple models in the stoving frame, also the distance at return bend both ends is different, and this embodiment is for improving adaptability, can adjust according to the difference of stoving frame, and concrete scheme is as follows:
at least one group of pipe pressing assemblies 6 are arranged as a movable group, a movable groove 221 is formed in the upper cross beam 22, the movable groove 221 provides a movable space for adjusting the displacement of the movable group of pipe pressing assemblies 6, and the pipe pressing assemblies 6 are fixed in position by arranging bolt and nut fasteners penetrating through the movable groove 221 through the mounting flange 61;
at least one group of pipe expanding oil cylinders 53 is a movable group, at the moment, the pipe expanding assembly 5 further comprises an adjusting assembly 52 which comprises guide strips 511 arranged at two sides of the fixed seat 51, a sliding groove 512 is formed between the two guide strips 511, the pipe expanding oil cylinder seat 531 is arranged in the sliding groove 512, one side of the pipe expanding oil cylinder seat 531 is connected to the output of the adjusting assembly 52, the sliding distance of the pipe expanding oil cylinders 53 in the sliding groove can be controlled by controlling the adjusting assembly 52, the adjusting assembly 52 can adopt conventional structures such as a screw rod and a rotating wheel, and the embodiment is not elaborated.
In this embodiment, the guide plates 24 fixed to the C-shaped plates 23 are further disposed on the two sides of the mounting flange 61, a gap exists between the guide plates 24 and the upper cross beam 22, the edges of the two sides of the mounting flange 61 are located at the gap, and the guide plates 24 not only enhance the structural strength of the system, but also have guiding and limiting effects on the mounting flange 61.
The specific working principle is as follows: putting a product to be expanded on a movable workbench 4, taking a first bent pipe at the front end close to a positioning block 46 as a reference, driving a movable clamp 45 to clamp the product by a clamping cylinder 43, driving the movable workbench 4 and the product to advance along an X axis by a feeding driving assembly 3 to reach the central position of the first bent pipe of a set product, driving a pipe pressing die 66 to descend until the product is tightly attached to the bent pipe, stopping and self-locking, driving a piston rod of a pipe expanding cylinder 53 to extend out to drive an inclined ejector rod 543 of a pipe expanding gun rod 54 to advance, driving a pipe expanding head 546 to upwards extrude the end part of the bent pipe by a spring piece 545 to complete a pipe expanding action, retracting the piston rod of the pipe expanding cylinder 53 to drive the inclined ejector rod 543 to retreat, resetting the pipe expanding head 546 under the action of the spring piece 545, driving the movable workbench 4 and the product to continue to advance along the X axis by the feeding driving assembly 3 to reach the central position of the next bent pipe, and repeating the pipe expanding steps, and after the pipe expanding of all the bent pipes is finished, the feeding driving assembly 3 drives the movable workbench 4 and the product to return to the initial position, and the clamping cylinder 43 drives the movable clamp 45 to loosen the product, so that the pipe expanding task of one product is finished.
The reaming forming machine can rapidly ream the end part of the bent pipe inserted into the vertical pipe, so that the connecting part of the bent pipe and the vertical pipe is firmly and tightly attached, the connecting strength of a product and the qualified rate of pressure test after brazing are improved, the reject ratio and the repair workload are reduced, and the quality and the production efficiency of the product are improved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a stoving frame return bend overlap joint reaming make-up machine which characterized in that includes:
the top of the machine body (1) is provided with a linear sliding rail (101) along an X axis;
the portal frame (2) stretches over the machine body (1);
the feeding driving component (3) is fixed on one side of the machine body and controls the moving of the movable workbench;
the movable workbench (4) is movably arranged on the slide rail (101), is connected with the output of the feeding driving assembly (3), is provided with a drying rack and limits the drying rack in the horizontal plane;
the pipe expanding assembly (5) is fixed at one end of the machine body and is used for expanding the hole of the drying rack bent pipe;
pipe subassembly (6) is pressed to the pressure, sets up on portal (2), sticiss the stoving frame perpendicularly downwards, carries out perpendicularly to spacingly to the stoving frame return bend.
2. The reaming and forming machine of claim 1, wherein:
the gantry (2) comprises upright columns (21) positioned on two sides of the machine body (1) and an upper cross beam (22) connected to the tops of the upright columns (21) and transversely stretched above the machine body (1), and C-shaped plates (23) are connected to two sides of the upper cross beam (22);
an installation space is formed between the upper cross beam (22) and the C-shaped plate (23), and the pressure pipe assembly (6) is arranged in the space.
3. The reaming and forming machine of claim 1, wherein:
the feeding driving assembly (3) comprises a support (31), a servo motor (32), a coupler (33), a sliding block (34), a lead screw (35), a first bearing seat (36) and a second bearing seat (37), and the support (31), the first bearing seat (36) and the second bearing seat (37) are fixedly connected to the machine body (1);
servo motor (32) are fixed on support (31), and the both ends cooperation of lead screw (35) is on first bearing frame (36) and second bearing frame (37), and the output of servo motor (32) passes through shaft coupling (33) and connects the one end of lead screw (35), and slider (34) set up on lead screw (35) and cooperate with lead screw (35), and movable table (4) is upwards connected in slider (34).
4. The reaming and forming machine of claim 1, wherein:
the movable workbench (4) comprises a base (41), a linear slide rail (42), a clamping cylinder (43), a fixed clamp (44), a movable clamp (45) and a positioning block (46); the base (41) is formed by connecting steel plate cross combinations, one side is provided with a fixed clamp (44), and the other side is provided with a movable clamp (45); linear slide rails (42) are arranged between the fixed clamp (44) and the movable clamp (45) at intervals, and the movable clamp (45) is arranged on the linear slide rails (42); the body of the clamping cylinder (43) is fixed on a connecting plate in the middle of the base (41), and the piston rod end of the clamping cylinder (43) is connected with the movable clamp (45); the positioning blocks (46) are fixed at the two sides of the front end of the base (41) and used for positioning the drying rack.
5. The reaming and forming machine of claim 1, wherein:
the pipe expanding assembly (5) comprises a fixed seat (51), two groups of pipe expanding oil cylinders (53) and two pipe expanding gun rods (54), wherein the fixed seat (51) is fixed on the machine body (1), the pipe expanding oil cylinders (53) are arranged on the fixed seat (51), and the two pipe expanding gun rods (54) are respectively arranged on the output of the pipe expanding oil cylinders (53);
the pipe expanding gun rod (54) comprises an outer sleeve (541), an inner connecting rod (542), an inclined ejector rod (543), a gun bore seat (544), a spring piece (545) and a pipe expanding head (546); the pipe expanding oil cylinder (53) is connected to the fixed seat (51) through a pipe expanding oil cylinder seat (531) on the pipe expanding oil cylinder, an inner connecting rod (542) is arranged in the outer sleeve (541), the rear end of the outer sleeve (541) is in flange connection with the pipe expanding oil cylinder seat (531), and the front end of the outer sleeve is in threaded connection with the gun bore seat (544); the rear end of the inner connecting rod (542) is connected with the output of the pipe expanding oil cylinder (53), and the front end is connected with the inclined mandril (543) through screw threads; the gun bore seat (544) is arranged at the pipe orifice of the outer sleeve (541), one end of the spring leaf (545) is fixedly connected to the gun bore seat (544), the other end of the spring leaf is a free end and extends to the pipe orifice of the outer sleeve (541), and the pipe expanding head (546) is arranged at the free end of the spring leaf (545).
6. The reaming and forming machine of claim 5, wherein:
the pipe pressing assembly comprises a mounting flange (61), a pipe pressing oil cylinder (62) and a pipe pressing die (66), the mounting flange (61) is fixed on the upper cross beam (22) and used for mounting the pipe pressing oil cylinder (62), the output of the pipe pressing oil cylinder (62) is connected with the pipe pressing die (66), and the pipe pressing die (66) is controlled to lift in the vertical direction through the pipe pressing oil cylinder (62);
7. the reaming and forming machine of claim 6, wherein:
the bottom surface of the free end of the spring piece (545) is provided with an inclined contact surface (5451), and a gap is formed between the bottom surface of the free end of the spring piece (545) and the bore seat (544) in an undeformed state;
the shape of the pipe pressing die (66) is set according to the shape of the bent pipe, the pipe pressing die (66) is symmetrically pressed on the bent pipe of the drying rack, the included angle between the acting force on the bent pipe and the vertical direction is 45 degrees, and the resultant force of the pipe pressing die (66) on the bent pipe is in the vertical direction;
when the spring piece (54) is not deformed, the free end of the spring piece (54) is lower than the fixed end, and when the inclined ejector rod (543) just completely supports the free end of the spring piece (54), the displacement direction of the pipe expanding head (546) is just in the vertical direction.
8. The reaming and forming machine of any one of claims 5-7, wherein:
the movable workbench (4) further comprises a roller bracket (47), the roller bracket (47) comprises a bracket (471) fixed on the base (41) and a roller (472) pivoted on the bracket (471), and the pipe expanding gun rod (54) is placed on the roller (472).
9. The reaming and forming machine of claim 8, wherein:
pipe subassembly (6) are pressed and still are included guide bar (63), prevent that board (64), fixed block (65), prevent that board (64) set up on pressing the output of pipe hydro-cylinder (62) and its both ends connect guide bar (63), guide bar (63) upwards run through mounting flange (61), and fixed block (65) set up on preventing board (64) for install pipe die (66).
10. The reaming and forming machine of claim 9, wherein:
at least one group of pipe pressing assemblies (6) are movable groups, a movable groove (221) is formed in the upper cross beam (22), the movable groove (221) provides a movable space for adjusting displacement of the movable group of pipe pressing assemblies (6), and a mounting flange (61) is provided with a fastener penetrating through the movable groove (221) to complete position fixing;
at least one group of pipe expanding oil cylinders (53) are arranged as a movable group, the pipe expanding assembly (5) further comprises an adjusting assembly (52) which comprises guide strips (511) arranged on two sides of the fixed seat (51), a sliding groove (512) is formed between the two guide strips (511), the pipe expanding oil cylinder seat (531) is arranged in the sliding groove (512), one side of the pipe expanding oil cylinder seat (531) is connected to the output of the adjusting assembly (52), and the sliding distance of the pipe expanding oil cylinders (53) in the sliding groove is controlled by controlling the adjusting assembly (52).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110922520.8A CN113617952A (en) | 2021-08-12 | 2021-08-12 | Drying rack elbow lap joint reaming forming machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110922520.8A CN113617952A (en) | 2021-08-12 | 2021-08-12 | Drying rack elbow lap joint reaming forming machine |
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| CN113617952A true CN113617952A (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110922520.8A Pending CN113617952A (en) | 2021-08-12 | 2021-08-12 | Drying rack elbow lap joint reaming forming machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114101953A (en) * | 2021-11-15 | 2022-03-01 | 芜湖三花制冷配件有限公司 | Connecting process of multi-structural piece |
| CN117583495A (en) * | 2024-01-18 | 2024-02-23 | 广州坤江汽车配件工业制造有限公司 | Automatic assembly equipment for tubular engine oil cooler |
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| CN117583495B (en) * | 2024-01-18 | 2024-03-15 | 广州坤江汽车配件工业制造有限公司 | Automatic assembly equipment for tubular engine oil cooler |
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