Spindle mechanism of slant bed numerical control lathe

Abstract

The utility model discloses a main shaft mechanism of a slant bed numerical control lathe, which comprises a main body structure, an inner cavity of the main body structure is movably connected with an auxiliary body structure, the main body structure comprises a main shaft main body, the auxiliary body structure comprises a connecting assembly and a rotating assembly, the rotating assembly comprises a fixed body II and a movable body, and the fixed body II comprises a fixed main body II and a porcelain body II. The movable body comprises a movable main body and a rotating shaft body, the fixed main body II is movably connected to an inner cavity of the main shaft main body, the porcelain body II is fixedly arranged on the outer side of the fixed main body II, the movable main body is fixedly connected to the right end of the fixed main body II, and the rotating shaft body is fixedly connected to the outer side of the movable main body. The second fixing body is made of si3n4 engineering ceramic and has the characteristics of abrasion resistance and high temperature resistance, and when the auxiliary shaft body is driven by the main body structure to rotate for a long time, the possible problem of rotation unbalance caused by high temperature is solved.

Description

Technical Field

[0001] This utility model relates to the field of lathe spindle technology, specifically to a spindle mechanism for a slant bed CNC lathe. Background Technology

[0002] CNC lathes are among the most widely used CNC machine tools. They are mainly used for cutting internal and external cylindrical surfaces, internal and external conical surfaces with arbitrary cone angles, complex rotating internal and external curved surfaces, and cylindrical and conical threads on shaft or disc-shaped parts. They can also perform grooving, drilling, reaming, boring, and other machining operations. CNC machine tools automatically process parts according to pre-programmed machining programs. We compile the machining process route, process parameters, tool movement trajectory, displacement, cutting parameters, and auxiliary functions into a machining program sheet according to the instruction codes and program format specified by the CNC machine tool. This program sheet is then recorded on a control medium and input into the CNC device of the CNC machine tool, thus directing the machine tool to process the parts. Slant bed CNC lathes are a type of CNC lathe. Currently, most slant bed CNC lathes use steel forgings for their spindles. During prolonged rotation, high temperatures can cause rotational imbalance, leading to a significant reduction in rotational accuracy. To address this problem, a spindle mechanism for a slant bed CNC lathe is proposed.

[0003] CN214814868U discloses a spindle mechanism for a slant bed CNC lathe, including a housing. Inside the housing, drive shafts extending to the left and right sides are movably connected. A three-jaw chuck is fixedly connected to the right side of each drive shaft. Six connecting members located on the left side of the housing are movably connected to the outer side of each drive shaft. A ring is sleeved on the outer side of each drive shaft, located inside the connecting members. An adjusting mechanism is movably connected to the outer side of the ring. Six linkage mechanisms, which are kinetically connected to the adjusting mechanism and fixedly connected to the inner sides of the six connecting members, are located on the outer side of the ring. This spindle mechanism for a slant bed CNC lathe has advantages such as ease of use, solving the problem in the prior art where the pulley assembly on the spindle mechanism of a slant bed CNC lathe has a fixed size, requiring adjustment of the motor drive wheel position to tension the belt during installation, resulting in a cumbersome installation process and making the spindle mechanism inconvenient to use.

[0004] Regarding the aforementioned prior art, the inventors believe that the following shortcomings exist: the pulley assembly of the device has a fixed size, and when installing the belt, it is necessary to adjust the position of the motor drive wheel to tension the belt, which is cumbersome and makes the main shaft mechanism inconvenient to use. However, the device uses steel forgings, which may cause rotational imbalance due to high temperature during long-term rotation, resulting in a significant reduction in rotational accuracy. Utility Model Content

[0005] The purpose of this utility model is to provide a spindle mechanism for a slant bed CNC lathe to solve the problems mentioned in the background art, such as the fixed size of the pulley assembly of the device, the need to adjust the position of the motor drive wheel to tension the belt when installing the belt, the cumbersome installation process, and the inconvenience of using the spindle mechanism. However, the device is made of steel forgings, which may cause rotational imbalance due to high temperature during long-term rotation, resulting in a significant reduction in rotational accuracy.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a spindle mechanism for a slant bed CNC lathe, comprising a main structure:

[0008] The main structure has a secondary structure that is movably connected to its internal cavity.

[0009] The main structure includes a main shaft body;

[0010] The sub-body structure includes a connecting component and a rotating component;

[0011] The rotating assembly includes a fixed body and a movable body;

[0012] The fixed body 2 includes a fixed main body 2 and a ceramic body 2, and the movable body includes a movable main body and a rotating shaft;

[0013] The fixed body 2 is movably connected to the inner cavity of the main shaft body, the ceramic body 2 is fixedly disposed on the outer side of the fixed body 2, the movable body is fixedly connected to the right end of the fixed body 2, and the rotating shaft is fixedly connected to the outer side of the movable body.

[0014] Furthermore, the fixed body 2 is connected to the movable body and the rotating shaft, and the rotating shaft is toothed.

[0015] Furthermore, the connecting assembly includes a first connecting body, a secondary shaft body, a rotating worm gear, a second connecting body, a second positioning disk, and a second positioning groove;

[0016] The first connecting body is movably connected to the inner cavity of the main shaft body, the second sub-shaft body is fixedly connected to the right end of the first connecting body, the rotating worm is fixedly set at the right end of the second sub-shaft body, the second connecting body is fixedly connected to the right end of the rotating worm, the second positioning plate is fixedly connected to the right end of the second connecting body, and the second positioning groove is fixedly opened in the inner cavity of the second positioning plate.

[0017] Furthermore, the rotating worm gear is connected to the second connecting body and the second positioning disk through the second connecting body. The second positioning groove is O-shaped and four positioning grooves are symmetrically arranged.

[0018] Furthermore, the main structure includes a positioning component and a fixing component;

[0019] The positioning component includes a positioning disk and a positioning slot.

[0020] The positioning disk is fixedly connected to the left end of the main shaft body, and the positioning groove is fixedly opened in the inner cavity of the positioning disk.

[0021] Furthermore, the positioning groove is O-shaped, and eight positioning grooves are symmetrically arranged.

[0022] Furthermore, the fixing component includes an external post, a fixing body, a movable post, a limiting post, and an embedded thread;

[0023] The external connector is fixedly connected to the left end of the main spindle body, and the fixing body is fixedly connected to the outside of the external connector.

[0024] The fixing body includes a fixing main body, a ceramic body, and a fixing groove;

[0025] The first fixing body is fixedly connected to the outside of the outer column, the first ceramic body is fixedly disposed on the outside of the first fixing body, and the fixing groove is fixedly opened in the inner cavity of the first fixing body.

[0026] The movable column is movably connected to the right end of the main spindle body, the limiting column is fixedly connected to the outside of the movable column, and the embedded thread is fixedly disposed in the inner cavity of the right end of the main spindle body.

[0027] Furthermore, the main spindle body is connected to the fixed body via an external column, the fixed slot is rectangular, and four fixed slots are symmetrically arranged. The main spindle body is connected via a movable column and a limiting column.

[0028] This utility model has the following beneficial effects:

[0029] I. This utility model includes a secondary structure. The secondary shaft body is connected to the inner cavity of the main structure through a connecting body one, and the rotating shaft body is engaged with the embedded thread. When the main structure rotates, the embedded thread drives the secondary shaft body to rotate through the rotating shaft body. The rotating shaft body and the secondary shaft body are connected by a fixed body two. The fixed body two is made of Si3N4 engineering ceramic, which has wear-resistant and high-temperature resistant properties. When the secondary shaft body rotates under the drive of the main structure for a long time, it reduces the problem of rotational imbalance caused by high temperature. Furthermore, the workpiece is positioned at the right end of the secondary shaft body through a positioning plate two and a positioning groove two.

[0030] Second, based on the above-mentioned beneficial effects, it also includes the main structure. The user first connects the workpiece through the positioning plate and the positioning groove, and then positions the workpiece through the fixing groove on the inner side of the fixing body. Then, the workpiece is further processed by rotating the main body. At the same time, the fixing body is made of Si3N4 engineering ceramic, which has wear-resistant and high-temperature resistant properties. During the long-term fixing of the workpiece, the accuracy will not decrease, resulting in higher processing accuracy. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0033] Figure 2 This is a schematic diagram of the main shaft connection of the main structure of this utility model;

[0034] Figure 3 This is a schematic diagram of the connection of the main body fixed in the main structure of this utility model;

[0035] Figure 4 This is a schematic diagram of the connection between the sub-shaft main body and the sub-body structure of this utility model;

[0036] Figure 5 This is a schematic diagram of the connection of the sub-body structure connector of this utility model;

[0037] Figure 6 This is a schematic diagram of the connection between the two main components of the auxiliary structure of this utility model.

[0038] The attached diagram lists the components represented by each number as follows:

[0039] In the diagram: 1. Main structure; 2. Sub-structure; 101. Main spindle body; 102. Positioning disc one; 103. Positioning groove one; 104. External column; 105. Fixed body one; 106. Movable column; 107. Limiting column; 108. Embedded thread; 1051. Fixed body one; 1052. Ceramic body one; 1053. Fixed groove; 201. Connecting body one; 202. Sub-shaft body; 203. Fixed body two; 204. Movable body; 205. Rotating worm gear; 206. Connecting body two; 207. Positioning disc two; 208. Positioning groove two; 2031. Fixed body two; 2032. Ceramic body two; 2041. Movable body; 2042. Rotating shaft. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0042] Please see Figure 1-6 As shown, this utility model is a spindle mechanism for a slant bed CNC lathe, including a secondary structure 2:

[0043] The inner cavity of the main structure 1 is movably connected to the sub-structure 2;

[0044] The main structure 1 includes the main shaft body 101;

[0045] Substructure 2 includes a connecting component and a rotating component;

[0046] The rotating assembly includes a fixed body 203 and a movable body 204;

[0047] The fixed body 203 includes a fixed main body 2031 and a ceramic body 2032, and the movable body 204 includes a movable main body 2041 and a rotating shaft 2042.

[0048] Fixed body 2031 is movably connected to the inner cavity of main shaft body 101, ceramic body 2032 is fixedly set on the outside of fixed body 2031, movable body 2041 is fixedly connected to the right end of fixed body 2031, and rotating shaft 2042 is fixedly connected to the outside of movable body 2041.

[0049] The fixed body 2031 is connected to the movable body 2041 and the rotating shaft 2042, which is toothed.

[0050] The fixed body 2031 is made of Si3N4 engineering ceramic, which has excellent properties such as low density, high elastic modulus, low coefficient of thermal expansion, wear resistance, high temperature resistance, and corrosion resistance. The teeth of the rotating shaft 2042 are engaged with the embedded thread 108. The embedded thread 108 drives the rotating shaft 2042 to rotate, which in turn drives the secondary shaft body 202 to rotate through the rotating shaft 2042 and the fixed body 2031.

[0051] The connecting assembly includes a first connecting body 201, a secondary shaft body 202, a rotating worm gear 205, a second connecting body 206, a second positioning plate 207, and a second positioning groove 208;

[0052] Connector 1 201 is movably connected to the inner cavity of the main shaft body 101. The secondary shaft body 202 is fixedly connected to the right end of connector 1 201. The rotating worm gear 205 is fixedly set at the right end of the secondary shaft body 202. Connector 2 206 is fixedly connected to the right end of the rotating worm gear 205. Positioning disk 2 207 is fixedly connected to the right end of connector 2 206. Positioning groove 2 208 is fixedly opened in the inner cavity of positioning disk 2 207.

[0053] The rotating worm gear 205 is connected to the second positioning plate 207 via the second connecting body 206. The second positioning groove 208 is O-shaped and has four symmetrically arranged grooves.

[0054] The secondary shaft body 202 is positioned by the positioning groove 208 inside the positioning disk 207, and is driven to rotate by rotating the shaft body 2042.

[0055] Working principle: The secondary shaft body 202 is connected to the inner cavity of the main structure 1 through the connecting body 1 201, and the rotating shaft 2042 is engaged with the embedded thread 108. When the main structure 1 rotates, the embedded thread 108 drives the secondary shaft body 202 to rotate through the rotating shaft 2042. The rotating shaft 2042 and the secondary shaft body 202 are connected by the fixed body 2031. The fixed body 2031 is made of Si3N4 engineering ceramic, which has the characteristics of wear resistance and high temperature resistance. When the secondary shaft body 202 rotates under the drive of the main structure 1 for a long time, it reduces the possible problem of rotational imbalance caused by high temperature. Furthermore, the workpiece is positioned at the right end of the secondary shaft body 202 through the positioning plate 207 and the positioning groove 208.

[0056] This step utilizes the wear-resistant and high-temperature-resistant properties of engineering ceramic materials, improving the accuracy and service life of the shaft during long-term use.

[0057] Please see Figure 1-6 As shown, this embodiment, based on the above embodiment, also includes a main structure 1.

[0058] The main structure 1 includes a positioning component and a fixing component;

[0059] The positioning component includes a positioning disk 102 and a positioning groove 103;

[0060] Positioning disk 102 is fixedly connected to the left end of spindle body 101, and positioning groove 103 is fixedly opened in the inner cavity of positioning disk 102.

[0061] The positioning groove 103 is O-shaped, and there are eight positioning grooves symmetrically arranged.

[0062] The multiple positioning slots 103 facilitate the connection of multiple external workpieces for processing.

[0063] The fixing components include an external post 104, a fixing body 105, a movable post 106, a limiting post 107, and an embedded thread 108;

[0064] The external connector 104 is fixedly connected to the left end of the spindle body 101, and the fixing body 105 is fixedly connected to the outside of the external connector 104.

[0065] The fixing body 105 includes a fixing main body 1051, a ceramic body 1052, and a fixing groove 1053;

[0066] The fixing body 1051 is fixedly connected to the outside of the external post 104, the ceramic body 1052 is fixedly disposed on the outside of the fixing body 1051, and the fixing groove 1053 is fixedly opened in the inner cavity of the fixing body 1051.

[0067] The movable column 106 is movably connected to the right end of the spindle body 101, the limiting column 107 is fixedly connected to the outside of the movable column 106, and the embedded thread 108 is fixedly disposed in the inner cavity of the right end of the spindle body 101.

[0068] The main spindle body 101 is connected to the fixed body 1051 via the external column 104. The fixed groove 1053 is rectangular and four fixed grooves are symmetrically arranged. The main spindle body 101 is connected to the movable column 106 and the limiting column 107.

[0069] Working principle: The user first connects the workpiece through the positioning plate 102 and the positioning groove 103, and then positions the workpiece through the fixing groove 1053 on the inner side of the fixing body 1051. Then, the workpiece is further processed by the rotation of the spindle body 101. At the same time, the fixing body 1051 is made of Si3N4 engineering ceramic, which has wear-resistant and high-temperature resistant properties. During the long-term fixing of the workpiece, the accuracy will not decrease, resulting in higher processing accuracy.

[0070] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0071] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A spindle mechanism for a slant bed CNC lathe, characterized in that, Including the main structure (1): The inner cavity of the main structure (1) is movably connected to the sub-body structure (2). The main structure (1) includes a main shaft body (101). The sub-body structure (2) includes a connecting component and a rotating component; The rotating assembly includes a fixed body (203) and a movable body (204). The fixed body 2 (203) includes a fixed main body 2 (2031) and a ceramic body 2 (2032), and the movable body (204) includes a movable main body (2041) and a rotating shaft (2042). The fixed body two (2031) is movably connected to the inner cavity of the main shaft body (101), the ceramic body two (2032) is fixedly disposed on the outside of the fixed body two (2031), the movable body (2041) is fixedly connected to the right end of the fixed body two (2031), and the rotating shaft (2042) is fixedly connected to the outside of the movable body (2041).

2. The spindle mechanism of a slant bed CNC lathe according to claim 1, characterized in that: The fixed body 2 (2031) is connected to the movable body (2041) and the rotating shaft (2042), and the rotating shaft (2042) is toothed.

3. The spindle mechanism of a slant bed CNC lathe according to claim 1, characterized in that: The connecting assembly includes a first connecting body (201), a secondary shaft body (202), a rotating worm gear (205), a second connecting body (206), a second positioning plate (207), and a second positioning groove (208). The first connector (201) is movably connected to the inner cavity of the main shaft body (101), the second shaft body (202) is fixedly connected to the right end of the first connector (201), the rotating worm (205) is fixedly set at the right end of the second shaft body (202), the second connector (206) is fixedly connected to the right end of the rotating worm (205), the second positioning disk (207) is fixedly connected to the right end of the second connector (206), and the second positioning groove (208) is fixedly opened in the inner cavity of the second positioning disk (207).

4. The spindle mechanism of a slant bed CNC lathe according to claim 3, characterized in that: The rotating worm (205) is connected to the second connecting body (206) and the second positioning disk (207) through the second connecting body (206). The second positioning groove (208) is O-shaped and four positioning grooves (208) are symmetrically arranged.

5. The spindle mechanism of a slant bed CNC lathe according to claim 1, characterized in that: The main structure (1) includes a positioning component and a fixing component; The positioning component includes a positioning disk (102) and a positioning groove (103). The positioning disk (102) is fixedly connected to the left end of the main shaft body (101), and the positioning groove (103) is fixedly opened in the inner cavity of the positioning disk (102).

6. The spindle mechanism of a slant bed CNC lathe according to claim 5, characterized in that: The positioning groove (103) is O-shaped, and eight positioning grooves (103) are symmetrically arranged.

7. The spindle mechanism of a slant bed CNC lathe according to claim 5, characterized in that: The fixing component includes an external post (104), a fixing body (105), a movable post (106), a limiting post (107), and an embedded thread (108). The external connector (104) is fixedly connected to the left end of the main spindle body (101), and the fixing body (105) is fixedly connected to the outside of the external connector (104); The fixing body one (105) includes a fixing main body one (1051), a ceramic body one (1052) and a fixing groove (1053); The first fixing body (1051) is fixedly connected to the outside of the outer post (104), the first ceramic body (1052) is fixedly disposed on the outside of the first fixing body (1051), and the fixing groove (1053) is fixedly opened in the inner cavity of the first fixing body (1051). The movable column (106) is movably connected to the right end of the main spindle body (101), the limiting column (107) is fixedly connected to the outside of the movable column (106), and the embedded thread (108) is fixedly disposed in the inner cavity of the right end of the main spindle body (101).

8. The spindle mechanism of a slant bed CNC lathe according to claim 7, characterized in that: The main spindle body (101) is connected to the fixed body (1051) via an external column (104). The fixed groove (1053) is rectangular and four fixed grooves (1053) are symmetrically arranged. The main spindle body (101) is connected to the movable column (106) and the limiting column (107).

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