Special stirring shaft machining lathe transformed from center lathe

Abstract

The utility model relates to a special lathe for processing a stirring shaft, which is transformed from a common lathe, effectively solves the problems that the existing old 50 lathe cannot meet the requirements of length, turning radius and processing tolerance and is insufficient in safety and reliability, and adopts the technical scheme that the special lathe for processing the stirring shaft comprises a lathe body, a spindle box, a tailstock and a tool rest, the front end portion of the machine tool body is connected with the spindle box through a first tool, the tail end portion of the machine tool body is connected with the tailstock through a second tool, and the portion, close to the tail end portion, of the machine tool body between the spindle box and the tailstock is connected with the tool rest through a third tool. The lathe effectively solves the problems that an existing old 50 lathe cannot meet the requirements for the length, the turning radius and the machining tolerance, and safety and reliability are not enough, and is an innovation of a special lathe for machining the stirring shaft transformed from a common lathe.

Description

Technical Field

[0001] The utility model relates to the field of processing and manufacturing stirring shafts, in particular to a special lathe for processing stirring shafts which is modified from an ordinary lathe. Background Art

[0002] In recent years, the domestic alumina industry has seen continuous growth in production capacity, and the size of settling tanks has continued to increase. A single agitator shaft can now reach lengths of up to 15 meters, with a rotation radius exceeding 1500 mm and a weight exceeding 10 tons. Furthermore, the flange surface of the agitator shaft must be machined to meet the required tolerances for flatness, coaxiality, and straightness. Existing, older 50mm lathes cannot meet these length, rotation radius, and machining tolerance requirements, and their safety and reliability are insufficient. Purchasing new equipment is also expensive. Therefore, the need for a specialized lathe specifically designed for agitator shaft machining, modified from a conventional lathe, was imperative. Summary of the Invention

[0003] In view of the above situation, in order to solve the defects of the existing technology, the purpose of this utility model is to provide a special lathe for processing stirring shafts modified from an ordinary lathe, which can meet the requirements of large stirring shaft processing at a lower cost, and effectively solves the problem that the existing old-fashioned 50 lathe cannot meet the requirements of length, turning radius and processing tolerance, and is not safe and reliable enough.

[0004] The technical solution solved by the utility model is that it includes a machine tool bed, a spindle box, a tailstock and a tool holder. The front end of the machine tool bed is connected to the spindle box through a first tooling, the rear end is connected to the tailstock through a second tooling, and the machine tool bed near the rear end between the spindle box and the tailstock is connected to the tool holder through a third tooling.

[0005] The utility model has novel structure, reasonable design, low cost and good use effect. It effectively solves the problem that the existing old-fashioned 50 lathe cannot meet the requirements of length, turning radius and processing tolerance, and is not safe and reliable enough. It is an innovation in the special lathe for processing stirring shafts modified from an ordinary lathe. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a structural diagram of the present utility model.

[0007] Figure 2 This is a schematic diagram of the structure of the main shaft box gear after modification of the utility model.

[0008] Figure 3 This is a front view of the first tooling of the present utility model.

[0009] Figure 4 It is a top view of the first tooling of the utility model.

[0010] Figure 5 This is a front view of the second tooling of the present invention.

[0011] Figure 6 It is a top view of the second tooling of the present invention.

[0012] Figure 7 This is a front view of the third tooling of the present utility model.

[0013] Figure 8 It is a top view of the third tooling of the present utility model. DETAILED DESCRIPTION

[0014] The specific implementation of the present invention will be further described in detail below with reference to the accompanying drawings.

[0015] Depend on Figure 1-8 It is given that the utility model includes a machine tool bed, a spindle box, a tailstock and a tool holder. The front end of the machine tool bed 1 is connected to the spindle box 3 through a first tooling 2, and the rear end is connected to the tailstock 5 through a second tooling 4. The machine tool bed 1 near the rear end between the spindle box 3 and the tailstock 5 is connected to the tool holder 7 through a third tooling 6.

[0016] In order to ensure the use effect, the longitudinal section of the machine tool bed 1 is a rectangle with a rectangular groove in the middle.

[0017] The first tooling 2 is composed of a first transverse connecting plate 2-1 connected to a second transverse connecting plate 2-2 via a longitudinal connecting plate 2-3. The longitudinal connecting plate 2-3 is perpendicular to the first transverse connecting plate 2-1 and the second transverse connecting plate 2-2.

[0018] The first transverse connecting plate 2-1 and the second transverse connecting plate 2-2 are of the same size and structure, and are both formed by connecting a rectangular plate 2-4 with an L-shaped plate 2-5 via a connecting plate 2-6.

[0019] The connecting plate 2-6 is provided with two symmetrical rectangular through holes 2-6-1.

[0020] The second tooling 4 is composed of a rectangular through hole 4-1 set in the middle of a rectangular plate and a semicircular through hole 4-2 set on the short side of the rectangular through hole 4-1 and connected to the rectangular through hole 4-1. A symmetrical groove 4-3 is set in the middle of the long side of the rectangular plate.

[0021] Four semicircular through holes 4-2 are symmetrically arranged on the short sides of the rectangular through hole 4-1.

[0022] The third tooling 6 is composed of a first circular through hole 6-2 set in the center of a square plate 6-1 and a second circular through hole 6-3 set on one side and connected to the first circular through hole 6-2, and a third circular through hole 6-4 connected to the first circular through hole 6-2 is opened on the cylindrical plate set on the other side. The diameter of the first circular through hole 6-2 is larger than that of the second circular through hole 6-3, and the diameter of the second circular through hole 6-3 is larger than that of the third circular through hole 6-4.

[0023] The first fixture 2, the second fixture 4 and the third fixture 6 are all provided with threaded holes connected to the machine tool bed 1, the spindle box 3, the tailstock 5 and the tool holder 7, and are connected together by bolts. The first fixture 2, the second fixture 4 and the third fixture 6 have the same height.

[0024] The side of the spindle box 3 is provided with a pulley fixing connecting plate 3-1, and the pulley fixing connecting plate 3-1 is provided with a through hole, through which a transmission gear 3-2 and a second speed change gear 3-4 are fixed respectively. The transmission gear 3-2 and the second speed change gear 3-4 are connected through the first speed change gear 3-3, and the second speed change gear 3-4 is connected to the gear 3-5 connected to the feed box.

[0025] In the description of the present invention, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. For example, the terms "front end", "end", "upper", "lower", "lateral", "longitudinal", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention 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 operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] The usage of the present utility model is that the first tooling 2 is used to connect the machine tool bed 1 with the spindle box 3, the second tooling 4 is used to connect the machine tool bed 1 with the tailstock 5, and the third tooling 6 is used to connect the machine tool bed 1 with the tool holder 7, which effectively meets the tolerance requirements of the flatness, coaxiality, straightness and other tolerances of the flange surface of the stirring shaft. It is safe and reliable, and can meet the requirements of large-scale stirring shaft processing at a relatively low cost. It is an innovation in a special lathe for stirring shaft processing modified from an ordinary lathe, and has good economic and social benefits.

[0027] It should be pointed out that the above is only a preferred embodiment of the present invention and does not impose any form of limitation on the present invention. Any technician familiar with this profession can use the technical content disclosed above to make changes or modify them into equivalent embodiments with equivalent changes without departing from the scope of the technical solution of the present invention, and all of them fall within the scope of protection of the present invention.

Claims

1. A special lathe for processing stirring shafts modified from an ordinary lathe, comprising a machine bed, a spindle box, a tailstock and a tool holder, characterized in that: The front end of the machine tool bed (1) is connected to the spindle box (3) through a first tooling (2), the rear end is connected to the tailstock (5) through a second tooling (4), and the portion of the machine tool bed (1) between the spindle box (3) and the tailstock (5) near the rear end is connected to the tool holder (7) through a third tooling (6).

2. The special lathe for processing stirring shafts transformed from a common lathe according to claim 1, characterized in that: The longitudinal section of the machine tool bed (1) is a rectangle with a rectangular groove in the middle.

3. The special lathe for processing stirring shafts transformed from a common lathe according to claim 1, characterized in that: The first tooling (2) is composed of a first transverse connecting plate (2-1) connected to a second transverse connecting plate (2-2) via a longitudinal connecting plate (2-3), and the longitudinal connecting plate (2-3) is perpendicular to the first transverse connecting plate (2-1) and the second transverse connecting plate (2-2).

4. The special lathe for processing stirring shafts transformed from a common lathe according to claim 3, characterized in that: The first transverse connecting plate (2-1) and the second transverse connecting plate (2-2) are of the same size and structure, and are both formed by connecting a rectangular plate (2-4) with an L-shaped plate (2-5) via a connecting plate (2-6).

5. The special lathe for processing stirring shafts transformed from a common lathe according to claim 4, characterized in that: Two symmetrical first rectangular through holes (2-6-1) are provided on the connecting plate (2-6).

6. The special lathe for processing stirring shafts modified from a common lathe according to claim 1, characterized in that: The second tooling (4) is composed of a second rectangular through hole (4-1) provided in the middle of the rectangular plate and a semicircular through hole (4-2) provided on the short side of the second rectangular through hole (4-1) and connected to the second rectangular through hole (4-1). A symmetrical groove (4-3) is provided in the middle of the long side of the rectangular plate.

7. The special lathe for processing stirring shafts modified from a common lathe according to claim 6, characterized in that: Four of the semicircular through holes (4-2) are symmetrically arranged on the short side of the second rectangular through hole (4-1).

8. The special lathe for processing stirring shafts modified from a common lathe according to claim 1, characterized in that: The third tooling (6) is composed of a first circular through hole (6-2) arranged at the center of a square plate (6-1) and a second circular through hole (6-3) arranged on one side and connected to the first circular through hole (6-2), and a third circular through hole (6-4) connected to the first circular through hole (6-2) is opened on a cylindrical plate arranged on the other side, wherein the diameter of the first circular through hole (6-2) is larger than that of the second circular through hole (6-3), and the diameter of the second circular through hole (6-3) is larger than that of the third circular through hole (6-4).

9. The special lathe for processing stirring shafts modified from a common lathe according to claim 1, characterized in that: The first fixture (2), the second fixture (4), and the third fixture (6) are all provided with threaded holes connected to the machine tool bed (1), the spindle box (3), the tailstock (5), and the tool holder (7). The first fixture (2), the second fixture (4), and the third fixture (6) are connected together by bolts. The heights of the first fixture (2), the second fixture (4), and the third fixture (6) are the same.

10. The special lathe for processing stirring shafts modified from a common lathe according to claim 1, characterized in that: A pulley fixing connecting plate (3-1) is provided on the side of the spindle box (3), and a through hole is provided on the pulley fixing connecting plate (3-1), through which a transmission gear (3-2) and a second speed change gear (3-4) are respectively fixed, the transmission gear (3-2) and the second speed change gear (3-4) are connected via the first speed change gear (3-3), and the second speed change gear (3-4) is connected to a gear (3-5) connected to the feed box.

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