Machining structure for center lathe

Abstract

The utility model discloses a machining structure for a center lathe, and relates to the technical field of machine tool machining structures, the machining structure comprises a first connecting piece and an adjusting part, the first connecting piece is rotationally arranged on a mounting base, and the adjusting part is used for driving the first connecting piece to rotate around the central axis of the first connecting piece; and the turning tool is detachably installed on the first connecting piece, and the turning tool can rotate along with the first connecting piece. The lathe does not need to be greatly transformed, the design is simple, the situation that an existing lathe cannot conduct arc concave face machining can be effectively solved, the requirement of arc concave face machining of a workpiece for a numerical control lathe is lowered, the utilization rate of a common lathe is effectively increased, and the production efficiency can be greatly improved.

Description

Technical Field

[0001] This application relates to the technical field of machine tool processing structures, and particularly relates to a processing structure for an ordinary lathe. Background Art

[0002] Most of the lathes used in existing factories are still traditional ordinary non-CNC lathes. Due to cost reasons, only a few CNC lathes are equipped. Ordinary lathes can generally meet the conventional turning processes of parts. However, when processing parts that require turning processes such as machining arc concave surfaces, CNC lathes are needed. Due to the small number of CNC lathes and the fact that not all processing personnel are familiar with the use of CNC lathes, when encountering such processing procedures, they can only wait for the CNC lathe to be idle for processing or let skilled veteran employees take the parts to the CNC lathe for processing, which greatly affects production. In addition, ordinary lathes cannot be effectively used. Utility Model Content

[0003] This application aims to at least partially solve one of the above technical problems in the prior art. To this end, the embodiments of this application provide a processing structure for an ordinary lathe, enabling the ordinary lathe to machine arc concave surfaces of workpieces.

[0004] According to the processing structure for an ordinary lathe provided by the embodiments of this application, it includes a mounting base detachably mounted on the tool mounting part of the lathe; an adjusting mechanism including a first connecting member and an adjusting part, the first connecting member being rotatably arranged on the mounting base, and the adjusting part being used to drive the first connecting member to rotate around the central axis of the first connecting member; and a turning tool detachably mounted on the first connecting member, and the turning tool can rotate following the first connecting member.

[0005] According to the processing structure for an ordinary lathe described in the embodiments of this application, the first connecting member is a cylinder, the first connecting member is inserted into the mounting base, the first connecting member is provided with a fixing groove, and after the turning tool is placed in the fixing groove, it is locked by a first fastener.

[0006] According to the processing structure for an ordinary lathe described in the embodiments of this application, the first fastener is threadedly connected to the first connecting member, and the first fastener can enter the fixing groove to press against the turning tool.

[0007] According to the processing structure for an ordinary lathe described in the embodiments of this application, the first fastener is a bolt or a grub screw, and at least one screw hole for threaded connection of the bolt or the grub screw is provided on the surface of the first connecting member, and the screw hole communicates with the fixing groove.

[0008] According to the processing structure for a conventional lathe described in the embodiments of the present application, the adjusting portion includes a rotating handle, and the rotating handle is welded to the first connecting member.

[0009] According to the processing structure for a conventional lathe described in the embodiments of the present application, a connecting portion for inserting the first connecting member is provided at an end of the mounting base. The turning tool fixed to the first connecting member is located above the connecting portion, and a limiting member is provided on the first connecting member, and the limiting member is located below the connecting portion.

[0010] According to the processing structure for a conventional lathe described in the embodiments of the present application, the limiting member has an internal thread, and an external thread matching the internal thread is provided on an outer surface of the first connecting member.

[0011] According to the processing structure for a conventional lathe described in the embodiments of the present application, the limiting member has a cylindrical portion, the first connecting member is provided with a hole structure penetrating both sides, and at least a part of the cylindrical portion provided in the hole structure is exposed outside the first connecting member.

[0012] According to the processing structure for a conventional lathe described in the embodiments of the present application, the adjusting portion includes a worm gear and a worm. The worm gear is fixed to the first connecting member, the worm is fixed to the mounting base, and the worm meshes with the worm gear.

[0013] According to the processing structure for a conventional lathe described in the embodiments of the present application, the tool mounting portion is provided with a fixing groove and a second fastener. The fixing groove is used to position and limit the mounting base, and the second fastener threadedly connected to the tool mounting portion can enter the positioning groove to press against the mounting base.

[0014] The above machining structure for a conventional lathe has at least the following beneficial effects: The mounting base serves as the reference for tool installation. After the mounting base is fixed to the tool mounting part of the lathe, the first connecting member and the adjusting part of the adjusting mechanism are assembled. The first connecting member is rotatably arranged on the mounting base, and the turning tool is detachably fixed to the first connecting member, which facilitates the quick replacement of different types of turning tools according to different turning precision requirements. When machining a concave arc surface of a workpiece, the workpiece rotates with the main shaft of the lathe. The distance between the turning tool and the surface of the workpiece is slowly adjusted through the tool mounting part, and then the turning tool is driven to rotate by the adjusting part. The adjusting part can relatively easily rotate the first connecting member in the turning state, so that while feeding, the cutting edge of the turning tool rotates following the first connecting member, forming an arc-shaped cutting. As the tool mounting part continuously feeds, an arc-shaped concave surface can be machined on the surface of the workpiece. And the mounting base and the tool mounting part of the lathe are set to be detachably connected. When ordinary turning is required, the entire mounting base can be quickly replaced with an ordinary turning mounting base to achieve the quick switching between ordinary turning and arc turning. This application does not require major modification of the lathe, has a simple design, can effectively solve the situation that the existing lathe cannot machine arc-shaped concave surfaces, reduces the demand for CNC lathes in the arc-shaped concave surface machining of workpieces, effectively improves the utilization rate of conventional lathes, and can greatly improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following further describes the present application with reference to the drawings and embodiments;

[0016] Figure 1 is a schematic structural view of the first aspect embodiment of the present application Figure 1 ;

[0017] Figure 2 is a schematic structural view of the first aspect embodiment of the present application Figure 2 ;

[0018] Figure 3 is a schematic structural view of the second aspect embodiment of the present application;

[0019] Figure 4 is a schematic structural view of the third aspect embodiment of the present application.

[0020] Reference numerals: tool mounting part 100, fixing groove 110, second fastener 120, mounting base 210, connecting part 220, limiting step 221, first connecting member 310, hole structure 311, adjusting part 320, handwheel 321, worm 322, fixing bracket 323, worm gear 324, turning tool 400, workpiece 500. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] This section will describe in detail the specific embodiments of the present application. The preferred embodiments of the present application are shown in the accompanying drawings. The function of the accompanying drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present application. However, it should not be construed as a limitation on the protection scope of the present application.

[0022] In the description of the present application, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the present application.

[0023] In the description of the present application, the meaning of "several" is one or more, the meaning of "multiple" is more than two, "greater than", "less than", "exceeding", etc. are understood as not including the present number, "above", "below", "within", etc. are understood as including the present number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0024] In the description of the present application, unless otherwise clearly defined, words such as "set", "installed", "connected", etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0025] A common lathe is a horizontal lathe that can perform various machining operations on various types of workpieces such as shafts, discs, and rings. It is commonly used for machining the inner and outer rotary surfaces, end faces, and various internal and external threads of workpieces. With corresponding tools and accessories, it can also perform drilling, reaming, tapping, and knurling, etc. Most of the common lathes equipped in factories mainly use a turning tool 400 to perform turning machining on a rotating workpiece 500. Although it can machine the inner and outer rotary surfaces, the existing common lathes cannot machine arc concave surfaces. If it is necessary to machine the arc concave surface of the workpiece 500, a numerically controlled lathe is required. However, due to cost reasons, only a few numerically controlled lathes are equipped in general factories. Due to the small number of numerically controlled lathes, and not all machining personnel are familiar with the use of numerically controlled lathes, when encountering such machining operations, they can only wait for the numerically controlled lathe to be idle for machining or let the skilled old employees take it to the numerically controlled lathe for machining, which greatly affects the progress of production. In addition, the common lathes cannot be effectively used.

[0026] Therefore, referring to Figure 1 and Figure 2, an embodiment of the present application provides a processing structure for a common lathe, enabling the common lathe to process the arc concave surface of the workpiece 500. Specifically, the processing structure for the common lathe of the present application includes a mounting base 210, an adjusting mechanism, and a turning tool 400. Among them, the mounting base 210 is detachably mounted on the tool mounting part 100 of the lathe. The adjusting mechanism includes a first connecting member 310 and an adjusting part 320. The first connecting member 310 is rotatably arranged on the mounting base 210. The adjusting part 320 is used to drive the first connecting member 310 to rotate around the central axis of the first connecting member 310. The turning tool 400 is detachably mounted on the first connecting member 310. The turning tool 400 can rotate with the first connecting member 310, so that the cutting edge surface of the turning tool 400 can perform an arc movement, and thus the processing of the arc concave surface can be realized.

[0027] Specifically, the mounting base 210 serves as the benchmark for tool mounting. After the mounting base 210 is fixed on the tool mounting part 100 of the lathe, the first connecting member 310 and the adjusting part 320 of the adjusting mechanism are assembled. The first connecting member 310 is inserted into the mounting base 210, and the turning tool 400 is detachably fixed on the first connecting member 310, which is convenient for quickly replacing different types of turning tools 400 according to different turning precision requirements. When the arc concave surface of the workpiece 500 needs to be processed, the workpiece 500 rotates with the main shaft of the lathe. The distance between the turning tool 400 and the surface of the workpiece 500 is slowly adjusted through the tool mounting part 100, and then the turning tool 400 is driven to rotate through the adjusting part 320. The first connecting member 310 can be rotated more labor-savingly in the turning state through the adjusting part 320. Thus, while feeding, the cutting edge of the turning tool 400 rotates with the first connecting member 310 to form an arc-shaped cutting. As the tool mounting part 100 continuously feeds, an arc concave surface can be processed on the surface of the workpiece 500. By setting the mounting base 210 and the tool mounting part 100 of the lathe to be detachably connected, when ordinary turning is required, the entire mounting base 210 can be quickly replaced with an ordinary turning mounting base 210 to realize the quick switching between ordinary turning and arc turning. The present application does not require a major transformation of the lathe, has a simple design, can effectively solve the situation that the existing lathe cannot process the arc concave surface, reduces the demand for CNC lathes for the arc concave surface processing of the workpiece 500, effectively improves the utilization rate of the common lathe, and can greatly improve the production efficiency.

[0028] In some examples, the tool mounting portion 100 is provided with a fixing groove 110 and a second fastener 120. The fixing groove 110 is used to position and define the mounting base 210. The second fastener 120 threadedly connected to the tool mounting portion 100 can enter the positioning groove to press against the mounting base 210. The setting of the fixing groove 110 facilitates the installation and positioning of the mounting base 210. Of course, in some other embodiments, a reference surface can also be directly provided on the surface of the tool mounting portion 100 as the reference for the mounting base 210. With the reference and the positioning of pin-like components, the positioning and defining function of the fixing groove 110 can also be achieved. Preferably, the second fastener 120 can be a bolt. The bolt is threadedly connected to the tool mounting portion 100, and the bolt can enter the fixing groove 110 to press against the mounting base 210 to complete the limit fixation of the mounting base 210.

[0029] In some embodiments, as Figure 1 and Figure 3 shown, the first connecting member 310 is a cylinder. The first connecting member 310 is inserted into the mounting base 210 in the vertical direction. The first connecting member 310 can rotate along the central axis in the length direction of the first connecting member 310. The first connecting member 310 is provided with a fixing groove 110. After the turning tool 400 is placed in the fixing groove 110, it is locked by the first fastener. After the turning tool 400 is fixed to the first connecting member 310, the insertion depth of the first connecting member 310 into the mounting base 210 is restricted. Specifically, the first fastener is threadedly connected to the first connecting member 310, and the first fastener can enter the fixing groove 110 to press against the turning tool 400. The fixing groove 110 functions to position and restrict the turning tool 400, and the first fastener can press and fix the turning tool 400 in the fixing groove 110 so that the turning tool 400 will not displace during turning. In the embodiments of the present application, the first fastener is preferably a bolt or a machine screw. At least one threaded hole for threaded connection of the bolt or the machine screw is provided on the surface of the first connecting member 310. The threaded hole communicates with the fixing groove 110, and the fixing of the turning tool 400 is achieved through the pre-tightening of the bolt or the machine screw.

[0030] In some other embodiments, the first connecting member 310 can be provided with a rotating portion. The rotating portion is inserted and connected to the mounting base 210. When the rotating portion is located in the middle of the first connecting member 310, whether the rotating portion is perpendicular to the first connecting member 310 or not, the first connecting member 310 can also rotate around the rotating portion. Such a design can also enable the turning tool 400 to perform arc concave surface machining.

[0031] In the embodiments of the present application, the adjusting part 320 includes a rotating handle, and the rotating handle is welded to the first connecting piece 310. When the first connecting piece 310 is inserted vertically into the mounting base 210 and the first connecting piece 310 can rotate along the central axis in the length direction of the first connecting piece 310, the rotating handle is set not to be perpendicular to the first connecting piece 310. In the embodiments of the present application, the rotating handle is perpendicular to the first connecting piece 310, and the setting of the rotating handle facilitates rotating the turning tool 400 in the turning state with a relatively small force.

[0032] In some other embodiments, a connecting part 220 for inserting the first connecting piece 310 is provided at the end of the mounting base 210. The turning tool 400 fixed to the first connecting piece 310 is located above the connecting part 220, and a limiting part is provided on the first connecting piece 310, and the limiting part is located below the connecting part 220. The axial displacement of the first connecting piece 310 is restricted by the cooperation of the turning tool 400 and the limiting part, so as to avoid the situation that the turning tool 400 jumps during the turning process. The connecting part 220 can be a cylindrical structure, and the cylindrical structure is welded to the end of the mounting base 210 to form the connecting part 220. Of course, the connecting part 220 in the embodiments of the present application generally has a through hole for inserting the first connecting piece 310, and this through hole can be directly provided on the mounting base 210.

[0033] Furthermore, the limiting part has an internal thread, and an external thread matching the internal thread is provided on the outer surface of the first connecting piece 310. In the embodiments of the present application, the limiting part is preferably a nut.

[0034] In some embodiments, as Figure 3 shown, the limiting part has a cylindrical part, the first connecting piece 310 is provided with a hole structure 311 penetrating both sides, and at least part of the cylindrical part arranged in the hole structure 311 is exposed outside the first connecting piece 310. In the embodiments of the present application, the limiting part can be an entire cylindrical structure, that is, the limiting part is a shaft part, a pin or a stud, and the axial displacement of the first connecting piece 310 is restricted by inserting or screwing the limiting part into the hole structure 311.

[0035] As Figure 4 shown, the present application also provides another embodiment. In this embodiment, the adjusting part 320 includes a worm gear 324 and a worm 322. The worm gear 324 is fixed to the first connecting piece 310, the worm 322 is fixed to the mounting base 210, and the worm 322 meshes with the worm gear 324. The first connecting piece 310 is driven to rotate in a more labor-saving manner through the mutual cooperation of the worm gear 324 and the worm 322. Specifically, the mounting base 210 is provided with a fixing bracket 323 for the worm 322 to rotate and connect, and a hand wheel 321 is further provided at the end of the worm 322. The worm 322 is driven to rotate by the hand wheel 321, and then the first connecting piece 310 is driven to rotate through the worm gear 324.

[0036] Of course, in some other embodiments, the adjusting part 320 may also be two meshing gears.

[0037] In addition, to facilitate the rotation of the first connecting member 310, a bearing or a bushing into which the first connecting member 310 is inserted may be provided in the connecting part 220 to reduce the force required to rotate the first connecting member 310. To facilitate the fixing of the bearing or the bushing, a limiting step 221 is provided inside the connecting part 220.

[0038] The embodiments of the present application have been described in detail above in conjunction with the accompanying drawings. However, the present application is not limited to the above embodiments, and various changes can be made without departing from the gist of the present application within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. A processing structure for an ordinary lathe, characterized in that: including a mounting base detachably mounted on a tool mounting part of a lathe; an adjusting mechanism including a first connecting member and an adjusting part, the first connecting member being rotatably arranged on the mounting base, and the adjusting part being used to drive the first connecting member to rotate around the central axis of the first connecting member; and a turning tool detachably mounted on the first connecting member, and the turning tool being able to rotate following the first connecting member.

2. The processing structure for a conventional lathe according to claim 1, wherein: The first connecting member is a cylinder, the first connecting member is inserted into the mounting base, the first connecting member is provided with a fixing groove, and after the turning tool is placed in the fixing groove, it is locked by a first fastener.

3. The processing structure for a conventional lathe according to claim 2, wherein: The first fastener is threadedly connected to the first connecting member, and the first fastener can enter the fixing groove to press against the turning tool.

4. The machining structure for a conventional lathe according to claim 3, characterized in that: The first fastener is a bolt or a grub screw, and at least one threaded hole for threaded connection of the bolt or the grub screw is provided on the surface of the first connecting member, and the threaded hole communicates with the fixing groove.

5. The processing structure for a conventional lathe according to claim 1, characterized in that: The adjusting part includes a turning handle welded to the first connecting member.

6. The processing structure for a conventional lathe according to claim 2, characterized in that: An end of the mounting base is provided with a connecting part for inserting the first connecting member, the turning tool fixed to the first connecting member is located above the connecting part, and the first connecting member is provided with a limiting member located below the connecting part.

7. The machining structure for a conventional lathe according to claim 6, characterized in that: The limiting member has internal threads, and an outer surface of the first connecting member is provided with external threads matching the internal threads.

8. The processing structure for a conventional lathe according to claim 6, characterized in that: The limiting member has a cylindrical part, the first connecting member is provided with a hole structure penetrating both sides, and at least part of the cylindrical part arranged in the hole structure is exposed outside the first connecting member.

9. The processing structure for a conventional lathe according to claim 2, wherein: The adjusting part includes a worm gear and a worm, the worm gear is fixed to the first connecting member, the worm is fixed to the mounting base, and the worm meshes with the worm gear.

10. The processing structure for a conventional lathe according to claim 1, characterized in that: The tool mounting part is provided with a fixing groove and a second fastener, the fixing groove is used to position and limit the mounting base, and the second fastener threadedly connected to the tool mounting part can enter the positioning groove to press against the mounting base.

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