Shape correcting mold for thin-wall long bushing

Abstract

The utility model relates to a shape righting mould for a thin-wall long bushing, which comprises a cast iron seat, a rail surface is arranged on the upper portion of the cast iron seat, a roller adjusting seat is arranged on the rail surface, the thin-wall long bushing is arranged on the roller adjusting seat, and an inspection carriage is connected with an outer vertical surface of the rail surface in a sliding fit mode. A door straightening beam is connected with the cast iron seat in a sliding fit manner, a roller is arranged at the lower end of the door straightening beam, a pin lever is arranged between the door straightening beam and the cast iron seat, a hydraulic straightening push plate is arranged on the door straightening beam for bolting connection, and an expansion inner supporting device is arranged in the thin-wall long bushing. The thin-wall long lining cylinder is supported in a roller type through the roller adjusting seat, the bending degree of the thin-wall long lining cylinder is detected through the detection sliding frame, rapid correction is conducted through the hydraulic correction push plate, meanwhile, the interior of the thin-wall long lining cylinder is supported through the expansion inner supporting device, deformation of roundness is prevented, and the device is convenient to use and high in practicability. And the shape correcting efficiency of the thin-wall long lining cylinder workpiece is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of machining, and particularly relates to a straightening die for a thin-walled long liner tube. Background Technique

[0002] Machining is an important link in heavy industry production to carve parts into required shapes and sizes. Among them, thin-walled long tube parts made of metal are relatively common in production. Due to the influence of temperature, cutting force and its own stress during the rough machining with a large cutting amount of long shaft-shaped tube workpieces, a small amount of irregular bending deformation will occur after the workpieces are unloaded from the machine tool. Therefore, it is necessary to straighten the long tube workpieces with large bending before finishing. Especially when the slender tube workpieces with a relatively thick diameter, such as 200mm - 800mm in diameter and a length 5 - 20 times the diameter, are bent, it is very difficult to straighten and remedy.

[0003] The prior art discloses a straightening tooling for carbon / carbon thin-walled cylindrical parts used in a single-crystal silicon pulling furnace, with the publication number: CN217127598U. Its arc pressing plate can only straighten the roundness of thin-walled cylindrical parts with a relatively short length through an adjusting screw, and cannot straighten the bending degree of longer steel tube parts. Moreover, it is also impossible to quickly measure and inspect the bending degree of workpieces such as thin-walled long liner tubes. Content of the Utility Model

[0004] The present invention provides a straightening die for a thin-walled long liner tube to solve the technical problems of the inability to straighten the bending degree of long tube workpieces and the inability to quickly inspect the bending degree as mentioned above.

[0005] The technical solution adopted by the utility model to solve the above technical problems is: a straightening die for a thin-walled long liner tube, characterized in that it includes:

[0006] A cast iron seat, on the upper part of which there is a rail surface, on which a roller adjusting seat is arranged, and a thin-walled long liner tube is placed on the roller adjusting seat;

[0007] An inspection carriage, which is connected to the outer vertical surface of the rail surface in a sliding fit manner, and a scale adjusting needle is arranged at the upper end of the inspection carriage;

[0008] A straightening door beam, which is connected to the cast iron seat in a sliding fit manner, a roller is arranged at the lower end of the straightening door beam, and a pin bar is arranged between the straightening door beam and the cast iron seat;

[0009] A hydraulic straightening push plate, which is placed on the straightening door beam and connected by bolting;

[0010] An expansion inner support, which is placed inside the thin-walled long liner tube.

[0011] Preferably, a sliding seat is provided at the lower part of the inspection carriage, the sliding seat is in sliding fit with the slideway of the rail surface, and balls are provided on the sliding seat.

[0012] Preferably, a telescopic adjusting column is provided at the upper part of the inspection carriage, scale lines are provided on the telescopic adjusting column, the telescopic adjusting columns are locked by bolts, and the end of the telescopic adjusting column is connected with a scale adjusting needle.

[0013] Preferably, pin holes are evenly provided on the cast iron seat, the pin bar of the straightening beam is in clearance fit with the pin holes, and the straightening beam is locked to the cast iron seat by the pin bar in a pin type.

[0014] Preferably, the straightening beam is in a gate shape and spans across the cast iron seat, and the thin-walled long lining cylinder is placed inside the straightening beam.

[0015] Preferably, the hydraulic straightening push plate includes a hydraulic push rod, a hydraulic pump, a beam plate, a base plate and a lining plate. The seat body of the hydraulic push rod is bolted to the center of the straightening beam. The hydraulic push rod extends downward or retracts upward through the oil circuit control connection of the hydraulic pump. The lower end of the hydraulic push rod is bolted to the beam plate, and the lining plate is connected to the beam plate through the base plate.

[0016] Preferably, the beam plate, the base plate and the lining plate are all arc-shaped, and groove channels are evenly provided on the inner side surface of the lining plate.

[0017] Preferably, the expansion inner supporter is inserted from one end of the thin-walled long lining cylinder. The expansion inner supporter includes a base body tube, claw holes, a thin base tube, a ring base plate, an expansion arc body, an expansion adjusting cone rod and a tightening expansion nut.

[0018] Preferably, the thin base tube and the base body tube are integrally formed, the ring base plate is threadedly connected to the thin base tube, the claw holes are evenly distributed on the base body tube, the expansion arc body is placed in the claw holes for clearance fit, the expansion adjusting cone rod is placed inside the base body tube and the thin base tube in a clearance fit manner, and the expansion adjusting cone rod is threadedly connected to the tightening expansion nut.

[0019] Preferably, the number of the expansion arc bodies is equal to the number of the claw holes, the expansion arc bodies are evenly and symmetrically distributed, the conical surface of the expansion adjusting cone rod is in sliding fit with the expansion arc bodies, and the expansion adjusting cone rod makes the expansion arc bodies expand outward by screwing the tightening expansion nut.

[0020] The beneficial effects of the present utility model are as follows: The present utility model uses a cast iron base to lift a thin-walled long lining cylinder in a roller manner through a roller adjustment base, and detects the bending degree of the thin-walled long lining cylinder by means of a scale adjustment needle on the inspection carriage. The hydraulic straightening push plate on the straightening beam can quickly straighten the bent thin-walled long lining cylinder. At the same time, the inside of the thin-walled long lining cylinder can be supported by an expansion inner support to prevent large deformation in roundness during hydraulic straightening. The device has a simple structure, is easy to use, has a high straightening efficiency for thin-walled long lining cylinder workpieces, and is suitable for supporting use in a machining workshop. Brief Description of the Drawings

[0021] Figure 1 is the front view structural schematic diagram of the present utility model;

[0022] Figure 2 is the left view structural schematic diagram of the present utility model;

[0023] Figure 3 is of the present utility model Figure 2 local enlarged structural schematic diagram at A;

[0024] Figure 4 is of the present utility model Figure 2 local enlarged structural schematic diagram at B;

[0025] Figure 5 is of the present utility model Figure 1 front view external appearance schematic diagram of the expansion inner support of the present utility model;

[0026] Figure 6 is of the present utility model Figure 5 main cross-sectional structural schematic diagram of the expansion inner support of the present utility model;

[0027] Figure 7 is of the present utility model Figure 6 left view structural schematic diagram of the expansion inner support of the present utility model;

[0028] Figure 8 front view external appearance schematic diagram of the embodiment of the present utility model;

[0029] Figure 9 left view external appearance schematic diagram of the embodiment of the present utility model;

[0030] Figure 10 bottom view structural schematic diagram of the inner lining plate of the present utility model;

[0031] In the figure: 1 cast iron base, 11 pin holes, 12 rail surface, 121 slideway, 13 roller adjusting base, 2 thin-walled long lining cylinder, 3 inspection carriage, 31 scale adjusting needle, 32 telescopic adjusting column, 321 scale line, 322 bolt, 33 slide base, 331 ball, 4 straightening door beam, 41 roller, 42 pin bar, 5 hydraulic straightening push plate, 51 hydraulic push rod, 52 hydraulic pump, 53 beam plate, 54 base plate, 55 inner lining plate, 56 groove, 6 expansion inner supporter, 61 matrix tube, 62 claw hole, 63 thin base tube, 64 ring base plate, 65 expansion arc body, 66 adjusting expansion cone rod, 661 conical surface, 67 tightening expansion nut, 7 lower protective cover. Detailed implementation manners

[0032] The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustration and explanation of the present utility model, and are not used to limit the present utility model.

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0034] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0035] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0036] In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0037] Hereinafter, the present utility model will be further described in conjunction with the accompanying drawings.

[0038] Combined Figures 1 to 10 As shown, an orthopedic mold for a thin-walled long liner 2 disclosed by the present utility model may include a cast iron base 1, an inspection carriage 3, an orthopedic beam 4, a hydraulic orthopedic push plate 5, an expansion inner supporter 6, and a lower cover 7.

[0039] Hereinafter, the partial structures and principles of the above components of the orthopedic mold will be specifically described.

[0040] As an example, as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 shown, the cast iron base 1 can be a cast iron scribing platform or a platform made of a cast iron piece through machining. Parallel rail surfaces 12 are provided on the upper part of the cast iron base 1. Roller adjustment seats 13 can be provided on the two parallel rail surfaces 12. The roller adjustment seats 13 can use the center bracket equipped with a lathe to hold up the thin-walled long liner 2, and the number of the roller adjustment seats 13 for holding up the thin-walled long liner 2 can be 2 or more. A dovetail groove-shaped slideway 121 can be provided on the outer vertical surface of the rail surface 12 to slidably cooperate with the slide seat 33 of the inspection carriage 3. Ball bearings 331 are provided on the slide seat 33 to ensure that the inspection carriage 3 can slide smoothly back and forth through the slide seat 33, facilitating the manual dragging by the user; an adjustable telescopic column 32 is provided at the upper end of the inspection carriage 3. The adjustable telescopic column 32 is in a telescopic sleeve shape. Scale lines 321 can be provided on each section of the adjustable telescopic column 32, facilitating the user to read the amount of elongation or shortening of the length. Each section of the adjustable telescopic column 32 can be locked by bolts 322, and the end of the adjustable telescopic column 32 can be connected with a scale adjustment needle 31. The end of the scale adjustment needle 31 can measure and detect the roundness of the thin-walled long liner 2 and the curvature in the length direction, and check whether the curvature exceeds the reserved amount for precision turning and whether the reserved amount for precision turning of the workpiece is sufficient by means of a detection method in the lathe manner. The moving direction of the slide seat 33 of the inspection carriage 3 can be parallel to the length direction of the axis of the thin-walled long liner 2. When the axis line of the thin-walled long liner 2 is bent, the outer circle of the thin-walled long liner 2 can be inspected by the scale adjustment needle 31 of the inspection carriage 3, and the bending point and the amount of bending can be marked with a marker pen or chalk.

[0041] As an example, such as Figure 1 , Figure 2 shown, the straightening door beam 4 is made of steel material and welded into a door-shaped shape. The straightening door beam 4 spans across the cast iron seat 1 in a door shape. The straightening door beam 4 is slidably connected to the outer vertical surface of the rail surface 12 of the cast iron seat 1. A roller 41 is provided at the lower end of the straightening door beam 4 to facilitate pushing the straightening door beam 4 to reciprocate along the length direction of the rail surface 12 on the cast iron seat 1. A pin hole 11 is uniformly provided on the cast iron seat 1. A pin bar 42 is provided between the straightening door beam 4 and the cast iron seat 1. The pin bar 42 of the straightening door beam 4 is in clearance fit with the pin hole 11. The straightening door beam 4 is locked to the cast iron seat 1 by a pin connection through the pin bar 42. The thin-walled long lining cylinder 2 is placed inside the straightening door beam 4. A hydraulic straightening push plate 5 is provided on the straightening door beam 4 above the thin-walled long lining cylinder 2. The hydraulic straightening push plate 5 includes a hydraulic push rod 51, a hydraulic pump 52, a beam plate 53, a base plate 54, and a lining plate 55. The telescopic rod of the hydraulic push rod 51 is vertically downward. The seat body of the hydraulic push rod 51 is bolted to the center of the straightening door beam 4. The hydraulic pump 52 can be bolted to the straightening door beam 4. The hydraulic pump 52 can be a manual hydraulic pump and is hydraulically connected to the hydraulic push rod 51. The hydraulic push rod 51 extends downward or retracts upward through the hydraulic oil circuit control connection of the hydraulic pump 52. The lower end of the hydraulic push rod 51 is fixedly connected to the beam plate 53. Both the beam plate 53 and the base plate 54 are arc-shaped high-strength plates. The beam plate 53 is used to enhance the structural strength of the base plate 54. The inner arc surface of the base plate 54 is bolted or fixedly connected to the lining plate 55. The lining plate 55 can be made of rubber material. The lining plate 55 can be directly placed in contact with the thin-walled long lining cylinder 2. When the hydraulic pump 52 controls the hydraulic push rod 51 to drive the lining plate 55 to press down, the bent section of the thin-walled long lining cylinder 2 can be straightened.

[0042] In the embodiment of the present invention, referring to Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9As shown, an expansion inner support 6 can be inserted inside the thin-walled long liner 2. The expansion inner support 6 can be inserted from one end of the thin-walled long liner 2 to tighten the inside of the thin-walled long liner 2. The expansion inner support 6 can include a base tube 61, claw holes 62, a thin base tube 63, a ring base plate 64, an expansion arc body 65, an expansion adjustment cone rod 66, and a tightening nut 67. The thin base tube 63 can be integrally formed with the base tube 61. The claw holes 62 evenly distributed can be milled on the circumference of the base tube 61. The ring base plate 64 can be threadedly connected to the thin base tube 63, and the ring base plate 64 is in the form of a flange-shaped retaining ring. The expansion arc body 65 is placed in the claw holes 62 in a clearance fit manner. The number of the expansion arc bodies 65 is equal to the number of the claw holes 62, and multiple expansion arc bodies 65 are evenly and symmetrically distributed. One end of the expansion adjustment cone rod 66 is in the shape of a cylindrical rod, and the other end of the expansion adjustment cone rod 66 is in the shape of a cone. The expansion adjustment cone rod 66 can be turned. The cylindrical rod-shaped end of the expansion adjustment cone rod 66 is placed inside the thin base tube 63 in a clearance fit manner. The conical-shaped end of the expansion adjustment cone rod 66 can be used to support multiple expansion arc bodies 65. There can be a fitting sliding fit between the conical surface 661 of the expansion adjustment cone rod 66 and the expansion arc body 65. When the expansion adjustment cone rod 66 reciprocates, the expansion adjustment cone rod 66 can support multiple expansion arc bodies 65 outward through the conical surface 661 to tighten the inside of the thin-walled long liner 2. The axis line of the expansion adjustment cone rod 66 and the outer arc surface of the expansion arc body 65 are parallelly distributed. A rubber sheet can be padded between the expansion arc body 65 and the inner hole surface of the thin-walled long liner 2 to prevent the inner hole surface of the thin-walled long liner 2 from being damaged when the expansion arc body 65 is supported in an expanded manner.

[0043] After the centers of the two roller adjusting seats 13 are adjusted to be parallel and concentric with the rail surface 12, place the thin-walled long liner 2 on the two roller adjusting seats 13. Manually rotate the thin-walled long liner 2 and use the inspection carriage 3 to detect whether the workpiece is bent, and mark it with a marker pen. Place the highest point of the section that needs to be corrected for bending facing upwards, and make the distances between the two roller adjusting seats 13 and the highest point of the most severe bend equal. If the thin-walled long liner 2 is relatively long, multiple roller adjusting seats 13 can be used for support; insert the expansion inner supporter 6 into the thin-walled long liner 2, and place the arc expanding body 65 inside the bending section of the thin-walled long liner 2. The ring base plate 64 can be adjusted in a threaded manner on the thin base tube 63. The contact between the ring base plate 64 and the end face of the thin-walled long liner 2 can control the accurate placement of the arc expanding body 65 inside the bending section of the thin-walled long liner 2; the adjusting expansion cone rod 66 is screwed tightly through the tightening nut 67, so that the adjusting expansion cone rod 66 moves to tighten the arc expanding body 65 inside the bending section of the thin-walled long liner 2, and perform stable tightening to prevent the roundness of the thin-walled long liner 2 from being flattened by external forces and deformed during the straightening process; move the straightening beam 4 to directly above the bending section of the thin-walled long liner 2 workpiece and lock it with the pin lever 42. The hydraulic push rod 51 drives the beam plate 53, the base plate 54, and the inner lining plate 55 to move downward synchronously to the bending point of the bending section of the thin-walled long liner 2 for straightening the bend.

[0044] On the basis of the above embodiment, groove channels 56 can be evenly arranged on the inner side surface of the inner lining plate 55. A semi-circular lower protective cover 7 can be arranged below the beam plate 53. The lower protective cover 7 and the beam plate 53 can be connected by bolts. The internal structure of the lower protective cover 7 can be the same as that of the inner lining plate 55. After the lower protective cover 7 and the beam plate 53 clamp and protect the outside of the thin-walled long liner 2, when the expansion inner supporter 6 is used to tighten the inside of the thin-walled long liner 2, it can prevent the deformation of the roundness, and this method can be used to correct the deformation of the roundness. The structure of this device is simple, easy to use, has a relatively high straightening efficiency for thin-walled long liner workpieces, and is suitable for supporting use in a machining workshop.

[0045] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An orthopedic mold for a thin-walled long liner, characterized in that, Comprising: A cast iron seat, on the upper part of which there is a rail surface, on which there is a roller adjusting seat, and on which there is placed a thin-walled long lining cylinder; An inspection carriage, which is connected to the outer vertical surface of the rail surface in a sliding fit manner, and at the upper end of which there is a scale adjusting needle; A straightening beam, which is connected to the cast iron seat in a sliding fit manner, at the lower end of which there are rollers, and between which and the cast iron seat there is a pin bar; A hydraulic straightening push plate, which is placed on the straightening beam and connected by bolting; An expansion inner supporter, which is placed inside the thin-walled long lining cylinder.

2. The orthopedic mold for a thin-walled long liner according to claim 1, characterized in that: At the lower part of the inspection carriage there is a sliding seat, which is in sliding fit with the slideway of the rail surface, and on which there are balls.

3. The orthopedic mold for a thin-walled long liner according to claim 2, characterized in that: At the upper part of the inspection carriage there is a telescopic adjusting column, on which there are scale lines, and the telescopic adjusting columns are locked by bolts, and the end of the telescopic adjusting column is connected to the scale adjusting needle.

4. The orthopedic mold for a thin-walled long liner according to claim 1, characterized in that: On the cast iron seat there are evenly arranged pin holes, and the pin bar of the straightening beam is in clearance fit with the pin holes, and the straightening beam is locked to the cast iron seat by the pin bar in a pin type.

5. The orthopedic mold for a thin-walled long liner according to claim 4, characterized in that: The straightening beam is in a gate shape and spans across the cast iron seat, and the thin-walled long lining cylinder is placed inside the straightening beam.

6. The orthopedic mold for a thin-walled long lining cylinder according to claim 1, characterized in that: The hydraulic straightening push plate comprises a hydraulic push rod, a hydraulic pump, a beam plate, a base plate and an inner lining plate. The seat body of the hydraulic push rod is bolted to the center of the straightening beam. The hydraulic push rod extends downward or retracts upward through the oil circuit control connection of the hydraulic pump. The lower end of the hydraulic push rod is bolted to the beam plate, and the inner lining plate is connected to the beam plate through the base plate.

7. An orthopedic mold for a thin-walled long lining cylinder according to claim 6, characterized in that: The beam plate, the base plate and the inner lining plate are all arc-shaped, and on the inner side surface of the inner lining plate there are evenly arranged grooves.

8. An orthopedic mold for a thin-walled long liner according to claim 1, characterized in that: The expansion inner supporter is inserted from one end of the thin-walled long lining cylinder, and the expansion inner supporter comprises a base body tube, claw holes, a thin base tube, a ring base plate, an expansion arc body, an expansion adjusting cone rod and a tightening expansion nut.

9. An orthopedic mold for a thin-walled long lining cylinder according to claim 8, characterized in that: The thin base tube and the base body tube are integrally formed, the ring base plate is threadedly connected to the thin base tube, the claw holes are evenly distributed on the base body tube, the expansion arc body is in clearance fit in the claw holes, the expansion adjusting cone rod is in clearance fit inside the base body tube and the thin base tube, and the expansion adjusting cone rod is threadedly connected to the tightening expansion nut.

10. The orthopedic mold for a thin-walled long liner according to claim 9, characterized in that: The number of the expansion arc bodies is equal to the number of the claw holes, the expansion arc bodies are evenly symmetrically distributed, the conical surface of the expansion adjusting cone rod is in sliding fit with the expansion arc bodies, and the expansion adjusting cone rod makes the expansion arc bodies expand outward by screwing the tightening expansion nut.

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